Quartz glass window
These lenses have positive focus length. Most suitable where one conjugate is more than five times, the other. e.g. in sensor application or for use with near collimated light. Also where both conjugates are on the same side of the lens, e.g. as an add-on lens to increase the numerical aperture.
Quartz glass window specification
|Diameter Tolerance||+0.00, -0.15 mm|
|Thickness Tolerance||±0.2 mm|
|Paraxial Focal Length||±2%|
|Centration||<3 arc minutes|
|Surface Irregularity||λ/4(@)632.8 nm|
|Surface Quality||60-40 scratch and dig|
|Protective Bevel||0.25 mm x 45°|
The customized Quartz glass window is welcomed.
Other more optical production:
1> Optical Display System
Hongya Glass Co., Ltd. is located in Qingdao city where is famous base of optics research and development in China, we dedicate to designing and manufacturing high quality precision optical components including Lenses, High Precision Prism, Filter, Window, Beamsplitter, Mirror, Waveplate, Polarizer, Polarization Beamsplitter, Micro optics, they are widely used in industrial application, medical industry, construction, telecommunications, military, environment monitoring, life sciences, public security, aerospace etc. We have built well cooperation with some companies from United Kingdom,Germany, Ireland, Sweden, Australia, Brazil, U.S.A. etc.
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