ODM Germanium Thermal Lens Products – Chalcogenide Glass Lens for Infrared Applications – Wavelength
ODM Germanium Thermal Lens Products – Chalcogenide Glass Lens for Infrared Applications – Wavelength
ODM Germanium Thermal Lens Products – Chalcogenide Glass Lens for Infrared Applications – Wavelength Detail:
Product information:
Chalcogenide glass lens is optical lens made of chalcogenide glass. Chalcogenide glass is not one but a series of glass like amorphous materials which are transmit in the infrared band. They featured good transmission(>60%) in the range of 2-12 micron, low index of refraction(2.4-2.8@11micron), low thermal change in refractive index and low dispersion. They have similar mechanical and optical properties to germanium, which make them well suited for IR application, especially in color correction with germanium lens in optical system.
Unlike germanium, which needs to be mined and has limited supply, chalcogenide glass are synthetic and their prices are more stable. Chalcogenide glass have low melt point(200-400℃) compared to other infrared materials, they can be molded into aspheric lens with low cost for large quantity production(”Molded IR-Molded Chalcogenide Glass Lens”). For these two reasons, chalcogenide glass lens would play more and more important role in the infrared applications.
Wavelength Infrared can manufacture a variety shape of chalcogenide glass lens with plane, concave, convex, aspheric and diffractive surfaces. Chalcogenide glass is most popular for systems operating in the 3-5 or 8-12µm spectral region, with anti-reflective coatings (AR coating), the average transmission could be brought up to 97.5-98.5% depend on the bandwidth of the coating. We can also apply diamond-like carbon coating (DLC coating) or high durable coating (HD coating) on lens surface to provide extra protection against scratch and impact.
Wavelength infrared manufactures quality custom spherical and aspheric chalcogenide glass lens. They can either focus or diverge incoming light beam to meet specific requirement of the infrared system. The application could be thermal imaging, thermograph, beam collimating, spectrum analysis and etc.
Specifications:
| Material | Chalcogenide glass |
| Diameter | 10mm-300mm |
| Shape | Spherical or Aspheric |
| Focal length | <+/-1% |
| Decentration | <1 minute |
| Surface figure | <λ/4 @ 632.8nm (Spherical surface) |
| Surface irregularity | < 0.5 micron (Aspheric surface) |
| Clear Aperture | >90% |
| Coating | AR,DLC or HD |
Remarks:
1.DLC/AR or HD/AR coatings are available upon request.
2.Customization available for this product to suit your technical requirements. Let us know your required specifications.
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Our company promises all buyers of the first-class products and solutions as well as most satisfying post-sale support. We warmly welcome our regular and new shoppers to join us for ODM Germanium Thermal Lens Products – Chalcogenide Glass Lens for Infrared Applications – Wavelength , The product will supply to all over the world, such as: Paraguay, Hongkong, New York, Since its foundation , the company keeps living up to the belief of "honest selling , best quality , people-orientation and benefits to customers. " We're doing everything to supply our customers with best services and best solutions . We promise that we are going to be responsible all the way to the end once our services begin.
By Chloe from Mexico - 2018.06.18 17:25
After the signing of the contract, we received satisfactory goods in a short term, this is a commendable manufacturer.
By Eudora from Leicester - 2018.06.12 16:22
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Wavelength has been focused on providing high precision optical products for 20 years
