Detailed Product Description
plane-concave lens
These lenses are thicker at the edge than in the centre and flat on one side. The plano-concave lenses are used to expand light beams or to increase focal lengths in optical s
Detailed Product Description
We make lenses with diameter from 1.0mm to 300mm by optical glass or optical crystals, such as BK7, fused silica, CaF2.
Our standard lens has the following specifications:
Material: grade A BK7, fused silica, sapphire, or CaF2
Diameter tolerance: +0.0, -0.12mm
Paraxial focal length tolerance: ±2%
Centralization: 3arcmin
Clear aperture: >85%
Surface figure: 1/2 at 632.8nm
Surface quality: 60/40 scratch/dig
Bevel: 0.25mm x 45°
Coating: uncoated or coated upon requests
We supply standard lens (please visit our website for standard lenses) and customized
or OEM lenses upon customers' requests.
ystems. They are often employed for beam expansion of high peak power.
Our Products are fully customisable, your further requests are welcome!
