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Help Center1.499 1.56 1.60 1.67 Optical Lens HC HMC EMI UV
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Specifications
1 High Precision2 Competitive Price
3 Quick Delivery
4 Custom Size Available
5 Good service
Description:
Double Concave Lenses are manufactured with both surfaces concave. These lenses have negative focal lengths. These lenses diverge collimated incident light and form virtual images, which are seen through the lens. they are often used to expand light or increase focal lengths in existing systems. They are used in laser beam expanders, optical character readers, viewers, and projection systems. We will provide precision grade double concave lenses with tighter manufacturing tolerance.
Specifications:
Material |
BK7 glass, UV grade fused silica, CaF2 |
|
Diameter Tolerance |
+0.0,-0.1mm |
|
| Center Thickness | +/-0.2mm |
|
Bevle |
<0.25mm |
|
Paraxial Focal Length |
+/-1% (EFL<1m)
+/-2%(EFL>1m)
|
|
Surface Quality |
60-40 scrath and dig |
|
Clear Aperture |
Central 85% of diameter |
|
Coating |
Uncoated, AR, HR, PR Coating, etc. |
|
About Us:
We are specialized in the production of various specifications of optical components according to the customers' demand, And we are committed our standard more than eight years to offering our customers with excellent products, reasonable prices and high level of service.
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