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  • Offer Profile
  • Optotune develops and manufactures industry shaping active optical components that allow customers around the globe to innovate. Founded in 2008, we started out with our core technology of focus tunable lenses, which was inspired by the working principle of the human eye. Laser speckle reducers, 2D mirrors and tunable prisms are further additions to our product lines. Thanks to our deep understanding of optics and mechanics and a passion for technology, Optotune is your ideal partner when it comes to solving challenges where conventional optics fail.
Product Portfolio
  • Focus tunable lenses

  • Optotune is a leading supplier of focus tunable lenses for diverse applications. Whether electrically or mechanically actuated, the advantages of tunable lenses over traditional optics are striking. Optotune's lenses can be taylored to your specific demands in terms of size, tuning range, transmission range or speed. Tell us your requirements and we will be happy to assess the feasibility.

    • Shape changing lenses based on thin polymer film technology and high-performance optical fluids
    • Manually or electrically actuated
    • Transmission range: 240 to 2500nm
    • Operating temperature range: -40°C to +85°C and beyond
      • Fast electrically tunable lens EL-3-10

      • The compact EL-3-10 lens was designed for OEM integration into optical systems for various applications. The working principle is based on the well-established shape-changing lens technology. The curvature of the lens is adjusted by applying an electrical current. Thereby, the focal length is tuned to a desired value within very few milliseconds. The lens architecture is “push pull” which means that the lens curvature is deflected from concave to convex. With actuators based on proven voice-coil technology, the EL-3-10 focus tunable lens is extremely reliable and robust, well suited even for applications in harsh environments over large temperature ranges.

        Applications

        Optotune's EL-3-10 is the ideal choice for:

        • Imaging up to 1/1.8” sensors
        • Biometric systems
        • Optical coherence tomography (OCT)
        • Laser illumination
      • Fast electrically tunable lens EL-10-30-TC

      • Design faster and more compact optical systems without complex mechanics using the electrically focus tunable lens EL-10-30-TC. By applying a current, the focal length of the 10 mm aperture lens can be tuned to a specific value in milliseconds. Thanks to an integrated temperature sensor and characterization data, the lens can be driven to precise focal powers using Optotune's lens driver 4. The EL-10-30-TC is available with two broadband coating options, VIS for 400-700nm and NIR for 700-1100nm.

        Applications
        Applications for Optotune's EL-10-30-TC are among others:
        • Microscopy
        • Atom trapping
        • Optical coherence tomography (OCT)
        • Laser shows
      • Fast electrically tunable lens EL-10-30-C

      • Design faster and more compact optical systems without complex mechanics using the electrically focus tunable lens EL-10-30-C. By applying a current of 0 to 300mA, the focal length of the 10 mm aperture lens can be tuned to a specific value within milliseconds. The EL-10-30-C also features threads on either side for easy mounting as well as the possibility to replace the cover glass with a fixed focus offset lens, allowing for free adjustment of the focal length range according to the requirements of your application.

        Applications
        Applications for Optotune's EL-10-30-C are among others:
        • Machine vision
        • Microscopy
        • Biometric systems
        • Optical coherence tomography
      • Fast electrically tunable lens EL-10-42-OF

      • The electrically focus-tunable lens EL-10-42-OF is dedicated to 3D laser processing applications and sets the highest standards in terms of spot quality, speed and repeatability. With a focus tuning range of -2.0 to +2.0 diopters the spot can be controlled over a large range along the z-axis (working distance change of up to 180mm). Our proprietary built-in optical feedback mechanism allows for a long term repeatability of <0.02 diopters. The EL-10-42-OF is optimized for the use at 1064nm and 532nm.

        Applications

        Optotune's EL-10-42-OF is the ideal choice for a range in laser processing applications in:

        • Laser marking and engraving
        • Laser cleaning, welding, drilling
        • 3D-printing, additive manufacturing, microscopy
        • Laser projection templating
        • Micromachining
        • OCT, medical
      • Fast electrically tunable lens EL-16-40-TC

      • With a clear aperture of 16 mm Optotune presents the worlds‘s largest electrically focus tunable lens. Its design has been optimized in many ways:

        • The 60% larger aperture than its predecessor, the EL-10-30, allows for 2.5x more light throughput
        • The tunable lens can be shaped from a flat zero-state into a plano-concave or plano-convex lens, resulting in a focal tuning range of up to -10 to +10 diopters (at -250 to +250mA)
        • The design was optimized to minimize thermal drift effects to as little as 0.02 dpt/°C and with the built in temperature sensor, an overall reproducibility of typically +/- 0.05 diopters is achievable
        • Response & settling times are 5 & 25ms, respectively, which is still magnitudes faster than most mechanical alternatives
        • Integration of the lens shaper inside the container allows for the highest possible positioning accuracy of the tunable lens


        The EL-16-40-TC is available in its compact form for OEM integration but also with multiple thread adapters and a robust Hirose connector for industrial use, where the tunable lens can be easily combined with off-the-shelf imaging lenses.

        Applications
        Optotune's EL-16-40-TC is the ideal choice for:

        • Machine vision
        • Microscopy
        • Refraction correction in ophthalmic devices
      • ML-20-37

      • The Optotune ML-20-37 manually tunable lens is designed to have its lens curvature change between convex (+18 dpt), flat (0 dpt), and concave (-18dpt) by the rotation of the outer adjustment ring. This allows for the focal length of the lens to be tuned to the precise value required for an optical application. The rotation mechanism is extremely durable (>100'000 rotations), low torque and linear.

        It is available with and without C-mount adapter.

        Applications
        Optotune's ML-20-37 is the ideal choice for:

        • Ophthalmology
        • LED illumination
        • Optics R&D (e.g. beam expander)
        • Education
    • Lens Drivers

        • Lens driver 4 and 4i

        • The Lens Driver 4 offers a simple yet precise way to control Optotune’s electrically tunable lenses, in particular the EL-6-18 and EL-10-30 series. Communication with the driver follows an open simple serial protocol, which can be implemented in any programming language on Windows or Linux (C#, Labview and Python source code available). The driver comes with free software and can be used as a standalone solution or integrated into OEM designs. As a compact USB-powered current source, it also serves for driving LEDs or laser diodes.

          Main features:
          • Current control from -290 to +290 mA in 0.07mA steps
          • Drive frequencies from 0.2 to 2000 Hz (rectangular, triangular or sinusoidal)
          • I2C sensor read-out e.g. for temperature compensation ("Focal Power Mode")
          • USB powered (5V)
          • Driver software for Windows 7, 8 & 10
          • Available with plastic, steel or without housing

          This constant current source is suitable for:
          • Electrically tunable lenses
          • LEDs
          • Laser diodes
        • SCAPS Optotune-DSD-2-0 lens driver for EL-10-42-OF with digital interface (XY2-100)

        • Optotune-DSD is an FPGA-based digital controller which is used for the control of the EL-10-42-OF lens module. The board is composed of two layers for which the top one is Digital Servo Interface (DSI-1-O16) and the bottom one is Digital Servo Controller (DSC-1). The board is particularly designed and optimized for OEM-integration in 3D laser marking systems.
          Main features:

          • Pulse-width modulation (PWM) based lens control
          • Automatic tuning for the lens
          • Tracking delay of <1ms
          • Heater control unit
          • XY2-100 and bi-directional XY-SCAPS interface
          • Marking speed up to 8000 mm/s for a 45-degree hatching job
        • EL-E-OF-A Lens Driver for EL-10-42-OF with Analog Interface (0-5V)

        • The EL-E-OF-A enables the control of the EL-10-42-OF lens module via an analog voltage signal. Several digital signals are available for status verification. The electronics essentially provides an analog-to-digital stage to read the control and set voltage signal, digital processing with an implemented PID-loop and current sources to drive the lens and the heater unit. The board is optimized for OEM-integration in laser marking systems and therefore comes without housing.
          Main features:

          • Analog control voltage from 0 to 5 V (ADC resolution 16 bit
          • Sampling rate 1.1 kHz
          • Lens driving current ranging from 0 to 300 mA
          • Integrated optical feedback (OF) control
          • JTAG or USB interface for firmware update
        • Industrial lens controller TR-CL180 by Gardasoft

        • Designed for industrial use, this Lens Controller by Gardasoft is the ideal solution for machine vision customers. GigE Vision, RS232 and analog inferfaces as well as numerous SDKs allow for easy integration. The trigger input and fast response time of the controller make it also interesting for Z-stacking in microscopy and life science applications.

          Main features:

          • Current control from -400 to +400 mA in 0.1mA steps at 0.5mA accuracy
          • GigE Vision, RS232 & front panel interfaces
          • 0-10V analog input (12-bit)
          • I2C sensor read-out for temperature compensation ("Focal Power Mode")
          • Power supply: 24V
          • SDKs: C++, C#, VB, Labview, Cognex VisionPro, Teledyne Dalsa Sherlock, Stemmer Imaging CVB
        • OEM drivers by Gardasoft

        • Customers looking for a compact lens driver to integrate into their design will find an ideal solution with Gardasoft's CL190 & CL191 or CL160 drivers. These drivers are compatible with all Optotune lenses and offer similar features to the TR-CL180 above. The controllers provide +/- 250mA and can interface through UART, I2C or 0-10V analog. The CL191 can be purchased as a completely tested miniature board including a connector for the lens FPC cable. The CL190 is an even smaller design module that can be copy/pasted into the user’s PCB design. The CL160 is designed to fit into the Hirose adapter of Optotune’s EL-16-40.

      • Laser speckle reducers (LSR)

      • Optotune's laser speckle reducers are nothing other than moving diffusers. But the way they are actuated is absolutely unique. Two innovative technologies are offered, each with its own advantages.

        Electro-active polymer LSR
        With its launch in 2011, Optotune is the first to commercialize electro-active polymers (EAPs) in the field of optics. The basis of this approach is a thin, elastic membrane that carries a lightweight diffuser in its center and four electrodes surrounding it. Actuated at a 90° phase shift, the electrodes induce a circular oscillation of the diffuser in x- and y-direction. The ultra-compact form factor, minimal weight and the absence of noise and vibrations make this technology particularly attractive for hand-held devices.

        Reluctance force LSR
        Launched in 2016, the reluctance force LSR is particularly suitable for applications that require large format glass diffusers. The basis of this approach is a single thin steel structure that is brought into resonance by pulsing an actuating coil with current, which generates a strong reluctance force. Thanks to a high q-factor large amplitudes in the range of 800um are achieved at low power consumption even for heavy glass diffusers.
          • Electroactive polymer LSR

          • With its launch in 2011, Optotune is the first to commercialize electro-active polymers (EAPs) in the field of optics. The basis of this approach is a thin, elastic membrane that carries a lightweight diffuser in its center and four electrodes surrounding it. Actuated at a 90° phase shift, the electrodes induce a circular oscillation of the diffuser in x- and y-direction. The ultra-compact form factor, minimal weight and the absence of noise and vibrations make this technology particularly attractive for hand-held devices.

            Within a height of less than 1mm, electroactive polymers are used to bring a polymer diffuser into resonant oscillation with e.g. 400µm travel at several 100 Hz. This electrostatic principle is very power-efficient, completely silent and free of vibrations, an ideal choice for hand-held devices.

            • Ultra compact
            • No noise
            • No vibration
            • Low power
              • Transmissive laser speckle reducer LSR-3005

              • The LSR-3005 is designed for practical use on your optics table and integrates certified drive electronics powered through a single micro-USB connector (5VDC). Four standard diffuser configurations are available ranging from 6° (highest optical efficiency) to 24° (best speckle reduction). Most models combine an oscillating diffuser with a static diffuser to reduce the correlation length of the random patterns that are generated. This provides more effective speckle reduction yet minimizing the increase in beam divergence. The 17° model, which consists of a dynamic diffuser only, is particularly suitable when the diffuser needs to be in the image plane as is the case e.g. with holographic LCOS or in fiber coupling setups.

                With an oscillation frequency of 300Hz and an amplitude of about 300um, the 5mm aperture model is the preferred choice for applications with high frame rates. VIS and NIR coated cover glasses are provided as a standard. Other coating options as well as diffuser combinations are available upon request.

                Applications

                • Optotune's laser speckle reducers are the ideal choice for:
                • Laser projection displays from cinema to pico
                • Head-up displays
                • Beam homogenizer
                • Metrology
                • Microscopy
                • Interferometry
                • Lithography

                Customization

                Optotune's laser speckle reducers can be taylored to your specific demands in terms of size, oscillation frequency or transmission range. Tell us your requirements and we will be happy to assess the feasibility.

                 

              • Transmissive laser speckle reducer LSR-3010

              • The LSR-3010 is designed for practical use on your optics table and integrates certified drive electronics powered through a single micro-USB connector (5VDC). Two standard diffuser configurations are available: 6° for highest optical efficiency and 12° for best speckle reduction. Both models combine an oscillating diffuser with a static diffuser to reduce the correlation length of the random patterns that are generated. This provides more effective speckle reduction yet minimizing the increase in beam divergence.

                With an oscillation frequency of 180Hz and an amplitude of about 400um, the 10mm aperture model is the preferred choice for applications with frame rates below 180Hz or for the human eye. For the LSR-3010 series only VIS coated cover glasses are provided as a standard. Other coating options as well as diffuser combinations are available upon request

                Applications

                • Optotune's laser speckle reducers are the ideal choice for:
                • Laser projection displays from cinema to pico
                • Head-up displays
                • Beam homogenizer
                • Metrology
                • Microscopy
                • Interferometry
                • Lithography

                Customization

                Optotune's laser speckle reducers can be taylored to your specific demands in terms of size, oscillation frequency or transmission range.

              • Transmissive laser speckle reducer LSR-5-17

              • The OEM version of Optotune's laser speckle reducer comes with a minimal housing and is available with or without drive electronics.

                The most important parameter is the choice of diffuser angles. Standard diffuser angles of 1°, 4.3°, 8.5° and 17° are available. The LSR consists of a dynamic diffuser and optionally a subsequent static diffuser. The latter is recommended when no homogenizing optics follow the LSR to increase the speckle reduction factor. Finding an appropriate system layout is key to effective and efficient speckle reduction. Our application note contains several suggestions, suitable for a variety of applications.

                Optotune’s standard diffusers are made of a proprietary polymer, which offers a transmission range of 240 to 2500nm at a typical transmission of 93% and damage threshold of 300W/cm2. The diffuser itself is not coated, however VIS and NIR coated cover glasses are available as a standard. It is also possible to work with glass diffusers if they are similar in size and weight.

                With an oscillation frequency of 300Hz and an amplitude of about 300um, the 5mm aperture model is the preferred choice for applications with high frame rates.

                Design possibilites

                Optotune has custom designed speckle reducers to suit diverse requirements. On the large side, diffusors of 50x20mm size have been actuated at >60Hz for head-up displays. On the small side, an LSR as tiny as 9x6x1mm has been prototyped for pico-projectors.

                Applications

                • Optotune's laser speckle reducers are the ideal choice for:
                • Laser projection displays from cinema to pico
                • Head-up displays
                • Beam homogenizer
                • Metrology
                • Microscopy
                • Interferometry
                • Lithography

                Customization

                Optotune's laser speckle reducers can be taylored to your specific demands in terms of size, oscillation frequency or transmission range. Tell us your requirements and we will be happy to assess the feasibility.

              • Transmissive laser speckle reducer LSR-10-22

              • The OEM version of Optotune's laser speckle reducer comes with a minimal housing and is available with or without drive electronics.

                The most important parameter is the choice of diffuser angles. Standard diffuser angles of 1°, 4.3°, 8.5° and 17° are available. The LSR consists of a dynamic diffuser and optionally a subsequent static diffuser. The latter is recommended when no homogenizing optics follow the LSR to increase the speckle reduction factor. Finding an appropriate system layout is key to effective and efficient speckle reduction. Our application note contains several suggestions, suitable for a variety of applications.

                Optotune’s standard diffusers are made of a proprietary polymer, which offers a transmission range of 240 to 2500nm at a typical transmission of 93% and damage threshold of 300W/cm2. The diffuser itself is not coated, however VIS and NIR coated cover glasses are available as a standard. It is also possible to work with glass diffusers if they are similar in size and weight.

                With an oscillation frequency of 180 Hz and an amplitude of about 400um, the 10mm aperture model is the preferred choice for applications with frame rates below 180Hz or for the human eye.

                Design possibilites

                Optotune has custom designed speckle reducers to suit diverse requirements. On the large side, diffusors of 50x20mm size have been actuated at >60Hz for head-up displays. On the small side, an LSR as tiny as 9x6x1mm has been prototyped for pico-projectors

                Applications

                • Optotune's laser speckle reducers are the ideal choice for:
                • Laser projection displays from cinema to pico
                • Head-up displays
                • Beam homogenizer
                • Metrology
                • Microscopy
                • Interferometry
                • Lithography

                Customization

                Optotune's laser speckle reducers can be taylored to your specific demands in terms of size, oscillation frequency or transmission range. Tell us your requirements and we will be happy to assess the feasibility.

            • Reluctance force LSR

            • Launched in 2016, the reluctance force LSR is particularly suitable for applications that require large format glass diffusers. The basis of this approach is a single thin steel structure that is brought into resonance by pulsing an actuating coil with current, which generates a strong reluctance force. Thanks to a high q-factor large amplitudes in the range of 800um are achieved at low power consumption even for heavy glass diffusers.
                  • Transmissive laser speckle reducer LSR-4C-L

                  • Optotune’s LSR-4C-L speckle reducer has an aperture of 18.5x18.5 mm and is especially suitable for applications where high laser powers and large beam diameters are used. The diffusor is mounted in a thin steel frame. As part of a larger metallic structure the frame is set into motion by the reluctance force, generated by the oscillating magnetic field of a driving coil. If required, the LSR-4C can combine two oscillating diffusors rotated by 90°, realizing optimized despeckling in both directions. The compact driving electronics, assembled on a flexible plastic substrate, stabilizes the resonance frequency in closed-loop mode and includes an error signal.

                    Applications

                    • Optotune's laser speckle reducers are the ideal choice for:
                    • Laser projection displays from cinema to pico
                    • Head-up displays
                    • Beam homogenizer
                    • Metrology
                    • Microscopy
                    • Interferometry
                    • Lithography

                    Customization

                    Optotune's laser speckle reducers can be taylored to your specific demands in terms of size, oscillation frequency or transmission range.

              • Beam steering

              • Whether in R&D or in product development, Optotune’s disruptive 2D beam steering solutions offer completely new design and integration possibilities. They can be used in reflection mode (2D mirror) or in transmission mode (tunable prism).

                Main features:

                • 2D beam deflection with a single optical element
                • Large clear apertures and beam angles
                • Compact & lightweight
                • Customized coatings available

                Dual axis voice coil mirror (VCM) with position feedback

                Optotune’s dual axis voice coil mirror (VCM) offers the benefit of large deflections and large mirror size in a compact package. The actuator is based on proven voice-coil technology. A built-in position feedback allows it to be accurately controlled with a standard PID controller. The virtual rotation point of our 2D mirrors is close to the mirror surface which makes 2D scanning straight forward. We offer either two non-resonant axis or a non-resonant axis in combination with a resonant axis. The first option is ideally suited for vector scanning and point & shoot applications, the latter is ideal for fast raster scanning.
                Optotune offers the MR-E-2, a full development kit including the mirror, control electronics and software.

                Applications:

                • Automotive (LiDAR, dynamic headlights, ADAS)
                • Vision (field-of-view expansion, zoom)
                • Biometric (eye-tracking)
                • Diagnostics (e.g. OCT, Fundus camera)
                • 3D printing
                  • Dual axis voice coil mirror (VCM) with position feedback

                  • Optotune’s dual axis voice coil mirror (VCM) offers the benefit of large deflections and large mirror size in a compact package. The actuator is based on proven voice-coil technology. A built-in position feedback allows it to be accurately controlled with a standard PID controller. The virtual rotation point of our 2D mirrors is close to the mirror surface which makes 2D scanning straight forward. We offer either two non-resonant axis or a non-resonant axis in combination with a resonant axis. The first option is ideally suited for vector scanning and point & shoot applications, the latter is ideal for fast raster scanning.

                    Optotune offers the MR-E-2, a full development kit including the mirror, control electronics and software.

                    Applications:

                    • Automotive (LiDAR, dynamic headlights, ADAS)
                    • Vision (field-of-view expansion, zoom)
                    • Biometric (eye-tracking)
                    • Diagnostics (e.g. OCT, Fundus camera)
                    • 3D printing
                  • Tunable prism for laser alignment and image stabilization

                  • Optotune‘s tunable prism (TP) is suitable for optical alignment and beam-steering in transmission. The core element can be combined with your preferred actuation method and achieve a compact form factor. The low absorption makes it suitable for high-power applications. Thanks to the low dispersion liquid it can also be used for polychromatic applications.

                    Applications:

                    • Ophthalmic applications
                    • Boresight alignment
                    • Laser combiner
                  • 3D beam steering

                  • Combining a 2D mirror for x/y with an electrically focus tunable lens allows you to direct your laser beam spot precisely and fast at any point within the addressable volume.

                    Application:

                    • Adaptive headlights
                    • Diagnostic/ophthalmic devices
                    • Spectroscopic devices
                    • 3D printing
                  • FOV expansion and AOI selection

                  • Field-of view (FOV) expansion and Area-Of-Interest (AOI) selection with a MR-15-30 dual-axis VCM: The standalone camera on the right is equipped with a wide-angle objective to capture the overall scene. The camera on the left, equipped with a narrow-angle tele lens, looks onto the mirror and allows to “zoom-in” and select a small AOI out of a 100° optical FOV.

                    Applications:

                    • Security applications
                    • Surveillance and face-tracking in airports and other public spaces.
                    • Inspection
                • Beam steering products

                    • Dual axis mirror with position feedback MR-15-30

                    • Optotune’s dual axis voice-coil mirror (VCM) series MR-15-30 is the ideal choice for applications that require large deflections in a compact form factor. With a mirror size of 15mm the MR-15-30 achieves up to +/- 25° mechanical tilt, which results in up to +/- 50° optical deflection. The mirror includes a position feedback system which allows it to be accurately controlled with a standard PID controller.

                      The actuator is based on proven voice-coil technology. In contrast to galvo mirror systems, the virtual rotation point is very close to the mirror surface. The mirror can be fabricated with various coatings such as gold, protected silver and other coatings including dielectrics on request.

                      The MR-15-30 is ideally suited for vector scanning and point & shoot applications. If you wish to do raster-scanning at higher speeds, we recommend the MR-10-30 series.

                      Optotune offers the MR-E-2, a full development kit including the mirror, control electronics and software.

                      Applications

                      • Automotive (LiDAR, dynamic headlights, ADAS)
                      • Vision (FOV expansion, AOI selection)
                      • Medical laser treatment
                      • Optical free-space communication
                      • Laser processing
                      • Biometric (eye-tracking)
                      • Ophthalmology (fundus camera, OCT)
                      • 3D printing
                    • One-axis-resonant dual axis VCM MR-10-30

                    • Optotune’s one-axis-resonant dual axis voice coil mirror series MR-10-30 is the ideal choice for applications that require fast scanning and large deflection angles in a compact form factor. With a mirror size of 10 mm the MR-10-30 achieves up to ± 25° mechanical tilt in the linear axis and up to ±12.5° mechanical tilt in the resonant axis, resulting in a 100° x 50° field of view.

                      The mirror includes a position feedback system which allows accurate position read-out and control. The actuator is based on proven technologies. In contrast to galvo mirror systems, the virtual rotation point is very close to the mirror surface. The mirror can be fabricated with various coatings such as gold or protected silver.

                      The MR-10-30 is ideally suited for fast raster scanning. If you are interested in vector scanning and point & shoot applications, we recommend the MR-15-30 series.

                      Optotune offers the MR-E-2, a full development kit including the mirror, control electronics and software.

                      Applications

                      • LiDAR
                      • Medical (OCT, confocal microscopy)
                      • Scientific
                    • Mirror driver MR-E-2

                    • Mirror driver MR-E-2
                      The MR-E-2 driver is an ideal solution for driving the MR-series 2D beam steering mirrors. It consists of a base unit containing control electronics and an integrated head unit with mirror and driving electronics. The driver in the standard version with housings can be used for testing and proof of concept work. The boards without housing are available as OEM version for integration with system electronics.

                      The driver is compatible only with mirrors produced by Optotune Switzerland AG and allows various operation modes. The driver can be controlled from a host PC via the Optotune Cockpit graphical user interface. In addition, the driver offers the following communication interfaces:

                      • USB, UART
                      • SPI (I2C available as customization)
                      • Analog input (± 5 V)

                      Software SDKs for Python (available) and C# (coming soon).

                      The driver is RoHS, REACH and CE certified.

                    • Tunable prism for laser alignment and image stabilization TP-12-16

                    • The tunable prism is a tunable wedge that allows to tilt two optically flat and AR coated glass windows with respect to each other. The two glass windows are held together by a bellow structure that is filled with a low dispersion clear optical fluid. The core element can be integrated with a large variety of actuation principles such as mechanical or motorized lead screws, voice-coil and piezo actuators.

                      The following table outlines the specifications of our standard tunable prism core element for a particular fluid. Cover glass coatings and fluids can be adapted on demand.

                      Applications

                      • Optotune's TP-12-16 are the ideal choice for:
                      • Intuitive beam-steering in transmission configuration
                      • Alignment between source and detector
                      • Laser range finder
                      • Image stabilization
                  • Beam shifting

                    • Beam shifting products

                        • Extended pixel resolution actuator XPR-9-2P

                        • Optotune’s XPR-9-2P is a smallest extended pixel resolution actuator in the world that is also suitable for HMD applications. With a clear aperture of about 9mm it is designed for use with Texas Instrument’s 0.23” DMD and enables the image resolution to be doubled from its native qHD to 720P. 

                          Main features:

                          •  Fast transition times of typically 1ms
                          •  Low acoustic noise of typically 17dBA at 30cm
                          •  For framerate frequency at 50 & 60Hz

                          Further beam shifting applications

                          Beyond the use case at 50 or 60Hz in projectors, the XPR-9-2P can also be used in DC mode or calibrated to perform different shifting patterns.

                          • 3D printing (resolution increase and/or smoothing)
                          • Cameras (super-resolution imaging)
                          • Metrology
                        • Extended pixel resolution actuator XPR-20

                        • Optotune’s XPR-20 is an extended pixel resolution 4-position actuator. With a clear aperture of about 20mm, it is designed for use with Texas Instrument 0.47” DMD and compatible both with ECD and Pico chipsets.

                          Main features:

                          • High angular position accuracy of typically +/-<5%
                          • Fast transition times of typically <1.2 ms
                          • Low acoustic noise of typically <20 dBA at 30cm
                          • Fully pre-calibrated at 50 & 60Hz for temperatures up to 75°C

                          Further beam shifting applications

                          Beyond the use case at 50 or 60Hz in projectors, the XPR-20 can also be used in DC mode or calibrated to perform different shifting patterns.

                          • 3D printing (resolution increase and/or smoothing)
                          • Cameras (super-resolution imaging)
                          • Metrology
                        • Extended pixel resolution actuator XPR-25

                        • Optotune’s XPR-25 is an Extended Pixel Resolution 4-position Actuator. With a clear aperture of about 25mm it is designed for use with Texas Instrument’s 0.47” DMD ECD and Pico chipset.

                          Main features:

                          • High angular position accuracy of typically +/-8%
                          • Fast transition times of typically 1.2 to 1.3ms
                          • Low acoustic noise of typically 21dBA at 1m
                          • Fully pre-calibrated at 50 & 60Hz for temperatures up to 75°C

                          Further related beam shifting applications

                          Beyond the use case at 50 or 60Hz in projectors, the XPR-25 can also be used in DC mode or calibrated to perform different shifting patterns. Further applications include:

                          • 3D printing (resolution increase and/or smoothing)
                          • Cameras (super-resolution imaging)
                          • Metrology
                        • Extended pixel resolution actuator XPR-33

                        • Optotune’s XPR-33 is an extended pixel resolution 4-position actuator. With a clear aperture of about 33mm it is designed for use with Texas Instrument 0.65” DMD and enables the image resolution to be doubled from its native 1080P to 4k.

                          Main features:

                          • High angular position accuracy of typically +/-8%
                          • Fast transition times of typically 1.35 ms
                          • Low acoustic noise of typically <22dBA at 30cm
                          • Fully pre-calibrated at 50 & 60Hz for temperatures up to 75°C

                          Further beam shifting applications

                          Beyond the use case at 50 or 60Hz in projectors, the XPR-33 can also be used in DC mode or calibrated to perform different shifting patterns.

                          • 3D printing (resolution increase and/or smoothing)
                          • Cameras (super-resolution imaging)
                          • Metrology
                      • Technology

                            • Focus tunable lenses

                            • Traditional optics are based on solid glass or plastic lenses, which are moved back and forth to focus or zoom. A very old but successful system, however, is completely different: the eye! It consists of an elastic lens material, which is bent in order to focus. Optotune has developed and patented a series of lenses that basically copy the principle of the eye.

                              Working principle

                              Optotune’s focus tunable lenses are shape-changing lenses based on a combination of optical fluids and a polymer membrane. The core element consists of a container, which is filled with an optical liquid and sealed off with a thin, elastic polymer membrane. A circular ring that pushes onto the center of the membrane shapes the tunable lens. The deflection of the membrane and with that the radius of the lens can be changed by pushing the ring towards the membrane, by exerting a pressure to the outer part of the membrane or by pumping liquid into or out of the container.

                              Advantages

                              A change in lens radius of several micrometers can have the same optical effect as moving the entire lens several centimeters. Focus tunable lenses thus allow optical systems to be designed more compact and without complex mechanics. High throughput systems benefit from the fast response time of only a few milliseconds. The liquid lens principle guarantees reliable and durable operation avoiding the typical mechanical wear and tear, which allows for billions of cycles. System designs are more robust as they can be be completely closed so that no dust can enter. Another advantage becomes obvious in production. The fact that less optical parts are moved combined with the tunability of the radius during operation results in reduced tolerance sensitivity and thus higher yield rates.

                              The five main advantages of focus tunable lenses over traditional optics:

                              • Compact designs
                              • Fast response
                              • High reliability
                              • Robust system design
                              • Less tolerance sensitivity
                        • Applications

                            • Machine Vision

                            • Throughout the machine vision industry, it has always been a challenge to keep products in focus under the camera or to quickly scan various objects at different distances. This can result in the need for additional mechanics or use of multiple cameras at different working distances, additional light sources and a drastic increase of costs and power consumption.

                              Optotune’s focus tunable liquid lenses provide a versatile, compact and cost-effective solution to these challenges. Thanks to the absence of translational mechanics, Optotune lenses have the possibility to focus within few milliseconds, ensuring robustness and reliability with a lifetime of billions of cycles.

                              Applications

                              • Quality control (e.g. liquids, electronics, bottles, LCDs, PCBs, ICs, CCMs)
                              • Packet sorting, box filling, palletizing
                              • Bar code reading
                              • Robot vision
                              • 3D image stacking

                              Advantages

                              • Fast focus within milliseconds
                              • Large working distance range
                              • Quicker system installation
                              • Remote focus control
                              • Long life time (>1B cycles)
                            • Microscopy

                            • Fast Z focusing and image stability have always been a difficult trade off in the microscopy sector; current technologies such as stepper motor Z actuators or piezo positioners are impacting the throughput in the life science business because of slow speed (stepper motor Z actuators) or because of the small travel and vibration (piezo positioners). It has always been necessary to combine the two different technologies to overcome these bottlenecks, increasing the complexity and the cost of the system.

                              Optotune focus tunable liquid lenses provide a versatile, compact and cost-effective solution to overcome this challenge. Thanks to the absence of translational mechanics, liquid lenses have the possibility to focus within few milliseconds combining coarse and fine focusing range, ensuring no vibration and reliability with a lifetime of billions of cycles.

                              A particularly interesting use case is using liquid lenses for z-stacking, to acquire 3D information (DFF) or to compute images with extended depth of field (EDOF).

                              Applications

                              • Wide-field microscopy
                              • Confocal Microscopy
                              • 3D Light Sheet microscopy
                              • Spectroscopy
                              • Digital holographic Microscopy

                              Advantages

                              • Fast Z stacking
                              • No vibrations
                              • Large working distance range
                              • Plug and Play device
                              • Long Life-time (>1B cycles)
                            • Laser processing

                            • Utilize Optotune’s technologies for a range of laser processing systems with following advantages:

                              • Compact form factor, low weight
                              • Large z-range, large scanning field
                              • Precise and fast z-axis control
                              • 2.5D & true 3D laser processing
                              • Constant and small spot sizes
                              • Flexibility and scalability

                              Optotune’s focus tunable lens with optical feedback is the ideal choice for fast z-axis spot control in laser processing systems, allowing to operate on a range of complex 3D geometries to meet the highest demands. The EL-10-42-OF is suitable for the use with ns- or ps-pulsed lasers at 532 nm and 1064 nm. Combined with the LP-autofocus sensor and the dual axis voice-coil mirrors (VCM) it is the ideal choice for low-mid power applications as for example for laser marking, surface cleaning, welding, structuring or additive manufacturing, that require large deflections in a compact form factor. To allow fast and easy integration into your production process, the Optotune laser processing products can be easily installed directly on the production line or on a robot arm.

                            • Ophthalmology

                            • Whether measuring the refractive power of the eye, scanning the retina and the anterior eye segment or taking a fundus image - Optotune’s components are used in a range of ophthalmic instruments.

                              Main benefits:

                              • Most compact way to correct refraction
                              • Continuous adjustment in real-time
                              • +/- 20 diopters spherical, +/- 8 diopters cylindrical (Stokes approach)
                              • Large clear aperture

                              There is no more natural way to compensate for visual defects of the human eye than by using focus tunable lenses, which basically work according to the same principles. Currently, most ophthalmic equipment relies on manual selection and alignment of one or several glass lenses to achieve the desired correction. With focus tunable lenses, correction can be done with one single lens, which can be adjusted continuously and precisely in real-time. Spherical lenses can be built with apertures of up to 40mm and optical power ranging from -20 to +20 diopters.

                              The large optical power tuning range in combination with the excellent dispersion properties allows to build a new generation of fast and compact ophthalmic instruments. Also, our 2D beam-steering mirrors are a great way to guide the diagnostic light beam into different parts of the eye. Maybe our beam-shifting devices will boost your instrument’s resolution.

                              Optotune has experience with component development for the ophthalmic instruments market and we work with some of the largest companies in the sector.

                              Applications

                              • Subjective refraction (Phoropters)
                              • Autorefractometers (‚fogging‘)
                              • Visual field analyzer
                              • Optical coherence tomography (OCT)
                              • Retina imaging (Fundus camera)
                            • Medical

                            • Optotune’s unique light controlling components enable a broad range of medical applications:

                              • Optical coherence tomography
                              • Fluorescent imaging
                              • Endoscopy
                              • Raman spectroscopy
                              • Intra-oral scanners
                              • Laser skin treatment

                              Optical coherence tomography
                              Our Dual axis voice coil mirror (VCM) with position feedback allows for a new generation of compact optical coherence tomography (OCT) systems. A key advantage is the single rotation point close to the mirror surface. This allows for example to bring the mirror close to the eye and to scan a larger section of the retina.

                              Fluorescent imaging
                              Fluorescent imaging is a widely applied tool in research and in the biotech industry. It relies on narrow-band laser excitation of fluorescent markers. Optotune’s laser speckle reducers help to homogenize and de-speckle the excitation light, which leads to a more reliable detection.

                              Endoscopy
                              Optotune’s liquid lens technology can be scaled down to fit into the tip of an endoscope and thus allowing for fast auto-focusing. Please contact us with your challenging requirements. Alternatively, one of our standard tunable lenses can be integrated into the C-mount camera adapter in order to carry out remote-focusing through the relay system.

                              Intraoral scanners
                              The dental CAD/CAM market grows rapidly. Dental cameras/intra-oral scanners are at the heart of the paradigm change from traditional to digital workflow. Optotune’s laser speckle reducers and focus tunable lenses allow for more accurate and faster 3D scanning.

                              Raman spectroscopy
                              Raman scattering is a growing market triggered by authentication and counterfeit detection, incoming quality control and airport/homeland security. Raman scattering is an inefficient process and therefore requires high-NA objectives that collect as many photons as possible. Those objectives result in low depth of field. Placing a tunable lens in the optical path allows to average the Raman signal over different depths and to adjust variations in working distance in case of handheld devices.

                            • Projection

                            • Optotune’s LSR and XPR technologies are used in a range of consumer and professional projectors.

                              Main advantages include:

                              • High-resolution, speckle-free projections
                              • Ultra-compact solution with no mechanics
                              • Extended pixel resolution

                              Laser speckle reduction

                              Lasers are very attractive for projection systems as they offer high contrast, a broad color spectrum and the advantage that images are always in focus. However, lasers do have the inherent problem of speckle: On optically rough surfaces, local interferences occur that manifest themselves as a grainy pattern of spots. This effect causes noise in projected images and reduces the resolution of measurement systems.

                              Optotune offers a unique solution to this problem. Electroactive polymers (so-called artificial muscles) are used to oscillate a diffuser at a high frequency to average out the speckle patterns. This principle is extremely compact, completely free of mechanics and low in power consumption. Optotune’s Laser speckle reducer can be customized in terms of size, frequency, coatings and diffuser structure to fit a variety of applications:

                              • Pico projectors
                              • Business projectors
                              • Cinema projectors
                              • Metrology

                              Extended pixel resolution

                              Optotune’s XPRs are Extended Pixel Resolution 2- and 4-position Actuators. With a clear aperture ranging from 9mm to 33mm, the standard products are designed for use with Texas InstrumentECD and Pico chipsets, to increase the resolution to be double or fourfold of the native.

                              Main features of 4-position Actuators

                              • High angular position accuracy of typically +/- 5 to 8%
                              • Fast transition times of typically 1.2 to 1.35ms
                              • Low acoustic noise of typically 20 to 22 dBA at 30cm.
                              • Fully pre-calibrated at 50 & 60Hz for temperatures up to 75°C
                            • AR / VR

                            • Optotune provides custom tunable liquid lenses for the AR/VR market based on its extensive liquid lens and actuator technology. The shape, tuning range, type of correction, type of actuation, optical performance and connectivity are parameters that are part of the customization flexibility. The process for custom lens design is well defined and controlled from specification to volume production. Optotune is a manufacturing company with large volume capacity (Mu per month).
                            • Compact camera modules

                            • Super-macro focusing

                              Optotune tunable lenses allow for focusing distances down to 2cm. Whereas the majority of standard mobile phone cameras are limited to a minimum focusing distance of 7cm. Focus tunable lenses allow for fast and reliable super-macro focusing.

                              • Super-macro (<2cm) possible in wide and tele cameras
                              • High speed (<5msec)
                              • Excellent optical quality with wafefront error < 0.12 l (rms)
                              • Clear apertures up to 6 mm
                              • Insensitive to barrel tilt
                              • Image sensor is protected from dust
                              • Platform for various optical lens barrels

                              OIS for folded tele cameras

                              OIS for folded tele cameras. Our tunable prisms allow for fast and robust optical image stabilisation with superior hand shake suppression.

                              • Fast and easy to control (liquid damping)
                              • No image rotation on OIS
                              • Insensitive to mechanical alignment
                              • Shock resistant
                              • Low power
                              • Enables super-resolution (pixel shifting)

                              Applications

                              • Mobile phones
                              • Webcams in laptops & tables
                              • Smart watches
                              • Drones
                            • Automotive

                            • Whether you need an innovative beam-steering solution for your LiDAR system and laser headlights, or you need laser speckle reducers for laser-based automotive HUDs, Optotune offers unique optical actuators to enable your next generation automotive product.

                              LiDAR

                              Optotune’s robust voice-coil based 2D mirrors offer a unique advantage in terms of large scan angle paired with a large mirror size. In combination with its compact footprint, its proven reliability and built in optical feedback system, it is an ideal choice for eye-safe, long-range scanning LiDAR systems.

                              • Compact
                              • Large mirror size (10-15 mm)
                              • Large FOV (100°)
                              • Long lifetime (>1 billion cycles)
                              • Designed for high vibration and shock resistance
                              • Wide choice of coating options (including dielectrics)
                              • Customizations are available on a project basis

                              Automotive HUD

                              In the quest of compact, high-brightness AR-type automotive HUDs with large FOV, the industry is moving to RGB laser sources. Lasers allow to build more compact and brighter systems. Unfortunately, these highly coherent light sources often generate unwanted laser-speckles. Optotune has a long experience in de-speckling and homogenizing laser light. While offering certain standard products, Optotune offers tailored laser speckle reducers (LSR) optimized to the client’s optical layout.

                              • Compact
                              • Magnetic actuation
                              • 1D and 2D diffusor movement
                              • Rectangular clear aperture

                              In addition to de-speckling, Optotune’s XPR® platform offers simple means to increase the limited resolution of today’s DLP® -based systems.

                              Adaptive headlights

                              Laser headlamps’ benefits are compelling: a near parallel beam of light 1’000 times more intense than conventional LEDs but with less than half the energy consumption. Combine it with Optotune’s 2D mirror and you get the most energy efficient adaptive headlight on the market. For your safety it offers a better visibility over the road ahead.

                              • Compact
                              • Fast
                              • Large FOV (100°)
                              • Robust (>1B cycles)

                              Applications

                              • LiDAR
                              • Automotive HUD
                              • Dynamic headlights
                              • Driver monitoring
                              • Advanced Driver Assistance Systems (ADAS)