Navigation : EXPO21XX > LASER & OPTICS 21XX > H16: Optical Components > B & M Optik
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  • Offer Profile
  • Our production ranges from simple moulded condenser optics to high precision quality optics. Here, we start from a diameter of 2 mm and only stop at 300 mm. We supply individual parts up to unlimited series: loose components, mounted optics and complete assemblies. We handle all optical glass, quartz glass and crystal materials for ground and polished lenses. Production of moulded components made from the glass types LIBA2000, F2, K10P, Tritan, Simax and coloured glass is currently possible. Tempering and mirror coatings can be applied on our own machines upon request.
Product Portfolio
  • Moulded lenses

      • Aspherical lenses

      • Moulded aspherical lenses
        Aspherical surfaces perform the task of minimising the aperture error invariably found in any lens. In comparison with a spherical lens with a comparable diameter and focal length, aspherical lenses have a lower aperture error.
        Under certain conditions it is possible to improve image defects such as coma, distortion and astigmatism. Since grinding, as for spherical surfaces, is not possible on conventional machines, the aspherical lenses are moulded.
        We recommend limiting the use of moulded
        lenses to condenser optics and simple lighting
        systems. The lenses must be designed such that demoulding is possible: lenses can be supplied in an angular design with offset rim and in anarray form version, for example.
    • LED optics

    • Your advantages
      • Individual adjustment of the beam angle with just one optic (8°–60°)
      • Homogeneous lighting without colour effects
      • Prevention of dice representation by special surface structures
      • Standard aspheres for all LEDs available on the market
      • Durability of optics even in case of negative external influences
      • No heat generation problems with High-Power-LEDs
      • Attractive high-quality glass design
      • Simple modification to customer-specific requirements
      • Low tool costs for moulded glass optics made to customer specifications
        • LED cases

        • We offer you selections of optics in 3 variants, always ready to hand in neat cases.
        • LED optics made of glass

        • Our advantage for you
          • Individual adjustment of the beam angle with just one optic (8°–60°)
          • Homogeneous lighting without colour effects
          • Prevention of dice representation by special surface structures
          • Standard aspheres for all LEDs available on the market
          • Durability of optics even in case of negative external influences
          • No heat generation problems with High-Power-LEDs
          • Attractive high-quality glass design
          • Simple modification to customer-specific requirements
          • Low tool costs for moulded glass optics made to customer specifications
      • Polished lenses

      • In general, we produce items in this sector based on orders. A few types are continuously produced and we have listed these parts. Furthermore, we also have a wide range of samples which are particularly helpful for new developments and small batches.
        • prisms / plano optics

        • The requirements for optical prisms are very different. Our prisms in optical systems ensure that light is deflected exactly as it meets your technical requirements. Please let us know your specifications and we will make you an individual offer.
            • Prisms/beam splitters wedges/windows

              • Laser protection glass

                  • Protective glass for laser welding facilities

                  • A window which is used during laser welding in order to protect the laser is considered to be a wear part.
                    An attractive price-quality ratio and rapid delivery times are therefore of particular interest.
                    • Ground and polished on both sides
                    • Bevelled on both sides 0.1 – 0.3 mm x 45°
                    • Standard dimensions e.g. Ø 50.8 mm or Ø 55.0 mm, any round or square shape is possible.
                  • Protective glass with coating

                  • We are also happy to offer this protective glass with coatings:
                    For example:
                    Both sides R < 0.3% for 1064 nm and T ≥ 97/ for 450 – 650 nm, i = 0° - 14°
                • Filters

                • Die selektive Absorption bestimmter Wellenlängen des Lichts wird durch optische Filter erreicht. Hier bieten wir Ihnen, neben individuellen Lösungen, viele spezielle Produkte.
                    • Glass colour filters

                    • Schott glass filters in round and square forms
                    • Heat absorption filters

                    • Linear transmission at a thickness of 3.0 mm
                    • Plastic colour filters

                    • Thicknesses:
                      • 0.5 mm/0.8 mm/1.0 mm/1.5 mm/
                      • 2.0 mm/2.5 mm/3.0 mm/4.0mm
                      • Thickness tolerances ± 0.2 mm
                      • Various types of filter such as IR filters and diffusion filters
                      • Any dimensions you want up to max.
                      • 1500 mm x 100 mm
                      • With AR or hard finish coating as required
                    • Heat reflection filters

                    • Heat reflection filters are permeable to light radiation. Through reflection of IR radiation, the proportion of heat in light is reduced.
                      • Coating temperatureresistant up to 400 °C
                      • Dimensions upon request.
                  • Plastic lenses

                  • Here you find a choise of our plastic lenses. As we have these mostly in stock, you can order these lenses directly from us without any costs for the mould. If you cannot find waht you are looking for, please feel ree to contact us.
                    • Round Plastic lenses
                    • Plano-convex, square
                    • Cylindrical lenses
                    • Double lenses
                      • AR coatings and mirror coatings

                      • Anti-reflection coatings reduce the reflectiveness of glass surfaces. Increased light transmission and a reduction in imaging errors in the desired wavelength range between 300 and 2000 nm. All types of mineral glass can be used as substrates, provided that the material properties are taken into account in the design of the coating, of course.
                          • AR coatings

                          • Anti-reflection coatings reduce the reflectiveness of glass surfaces. Increased light transmission and a reduction in imaging errors in the desired wavelength range between 300 and 2000 nm. All types of mineral glass can be used as substrates, provided that the material properties are taken into account in the design of the coating, of course.
                          • Mirrors

                          • Front surface mirrors with an aluminium reflection layer are used in imaging systems to prevent double images. The reflection height and centroid wavelengths can be determined using a dielectric protective coating.
                            • Coating is temperatureresistant up to 250 °C
                            • Standard substrate: all types of optical glass
                        • Technologies

                        • Innovative products with highest quality - a combination we are proud of!
                            • Moulded Lenses

                            • Admittedly, the moulding of hot glass to form optical elements isn’t new technology. However, the quality of the product has been significantly improved through constant development of the technology and methods. At B&M Optik, we use glass rods or gobs as the starting material, which is partially heated to the right temperature and then pressed into the mould. Depending on the application of the lenses, the parts are annealed or tempered. In order to achieve the end product, the opposite side of the moulded surface is ground and polished. For parts which are finish-moulded on both sides, the edge is simply rounded. This moulding process is significantly less timeconsuming, and therefore more cost-effective, than the production of the same optical elements in a ground and polished design. The variety of forms which a moulded optical part can take (e.g. edgings, openings, notches, double lenses, arrays) are another upside. This often cannot be produced or are difficult to produce using conventional production technology. Optical elements which are tempered after moulding have a high resistance to thermal shock. They are often better suited for use in extreme operating conditions than conventional elements. Such surfaces are referred to as finish moulded. Of course, besides the advantages there are a few disadvantages as well. Moulded lenses can only be used as condenser optics in lighting systems. In addition to our standard range (see page 12), we are also happy to provide you with a quote according to your specifications.
                            • Ground and polished lenses

                            • In order to guarantee consistent, verifiable quality, we are guided by the German industry standards (DIN ) for the production and final inspection of our optical components. The tolerances are defined in DIN ISO 10110. You can give details of your requests according to these standards. Production is monitored by interferometer. The final inspection can equally be done by interferometer. Naturally, the stipulated quality is decisive for pricing. In general, we produce items in this sector based on orders. A few types are continuously produced and we have listed these parts. Furthermore, we also have a wide range of samples which are particularly helpful for new developments and small batches. Since our range of products is constantly expanding, please contact us directly with your problem. We are sure to find an optimal solution for you.
                            • Injection-moulded plastics

                            • The injection moulding process is used to produce plastic lenses. With this process, moulded parts which can be used immediately can be profitably produced in large volumes. For this purpose, the appropriate type of plastic is placed in an injection unit and injected into an injection moulding tool using an injection moulding machine. The forming tools used here are diamond cut. The hollow space, the cavity, of the tool determines the shape and surface structure of the finished part. There is almost no limit to the type of surface which can be chosen for the component. Plastic lenses are predominantly used in medical devices, cars, sensors and industrial measurement technology, and in mechanical engineering. In addition to our standard range (see page 26), we are also happy to provide you with a quote according to your specifications.
                            • Coatings

                            • In our factory in Pirna, coatings are appliedon four systems. These are mirror and antireflection coatings in the wavelength rangesdesired in each case. We also offer special coatings such as laser protection coatings, dielectric mirror coatings and beam splitters, for example. Almost all types of mineral glass can be used as substrates, while taking into account the material properties in the design of the coating, of course. Our modern ultrasound washing plant ensures the careful cleaning which is a prerequisite for high-quality coatings. Sensitive glass types are cleaned manually by specialist personnel. We are happy to supply optically treated parts with coatings as well as offering contract coating services. Here, the dimensions of the parts and the number of layers required affect the price and delivery time. Thanks to the inclusion of a multitude of different substrates, each coating batch can be optimally, and thus economically, used.