Germanium Lenses/Radiation Detectors/Thermoelectric Materials/Optical Instrument

• Customization: Available
• After-sales Service: One Year
• Warranty: One Year
• Model NO.: RAY-LH216#
• Usage: Lighting, Medical, Optical, Photography
• Type: Flat Lens
• Shape: Customized
• Material: Optical Glass
• Certification: RoHS, ISO9001, CE
• Customized: Customized
• Surface Quality: 40-20 Scratch-Dig or Custom Manufacturing
• Surface Flatness: Lambda/10 at 632.8nm with Power Removed
• Coating Type: Dielectric Coating
• Wavelength Range: 488-694 Nm/700-950nm
• Transport Package: Cartons or Wood Case
• Specification: 12.7mm/25.4mm/50.8mm or custom manufacturing
• Trademark: Raytek
• Origin: China
• HS Code: 9002909090
• Production Capacity: 100000PCS Per Year

Product Description

Product Description:Germanium Lenses: Germanium can be used in radiation detectors and pyroelectric materials. High-purity germanium single crystal has a high refractive index, is transparent to infrared rays, does not transmit visible light and ultraviolet rays, and can be used as germanium windows, prisms or lenses that transmit infrared light. The ability of germanium to absorb light increases as the temperature rises. Above 100 degrees Celsius, it has a significant impact on the transmittance, which seriously affects the performance of the optical system. Due to its high surface reflectivity, germanium components are usually coated with anti-reflection coatings.

Product parameters:

Material	Germanium
Diameter tolerance	+0.0,-0.15mm (standard), +0.0, -0.02mm (high precision)
Focal length	+/-2%
Center offset	5 points
Clear Aperture	>85%
Surface Accuracy	λ/2 @ 632.8nm
Finish	60-40
Chamfer	0.25x45°

Main Export Countries & Areas:
Usa, Uk, Japan, Germany, Spain, France, Swiss, Korea, Russia, Pakistan, India, Portugal, Canada, New Zealand, Australia, Saudi Arab, Turkey, Finland, Poland ,etc.

Raytekoptics Extra value added services offered:
1). Optical workcraft & process solution design;
2). Rough processing raw materials;
3). Semi finishing raw materials;
4). Fabricate custom sizes and shapes;
5). Design and supply custom coatings;
6). Modify and resurface customer supplied materials;
7). Drill holes, notch glass and provide beveled substrates;
8). Precision polish optics with non-standard aspect ratios;

Payment Method: by T/T or Western Union.
Delivery time: 7-10 days.
Quality Warranty: Ruitaiphotoelectric(Raytekoptics) offers quality warranty for our optics products with "3R" policy. For any inferior-quality products, Ruitaiphotoelectric(Raytekoptics) is responsible for return, replacement and refund.