United Photonics Technology (UPT) Co., Ltd.
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UPT - Achromatic Lenses
These lenses are made of BK7, fused silica and CaF2. Special focusing systems can be designed by our engineers upon request. These lenses have considerably reduced values of spherical aberrations. Best used to replace single components where performance must be improved.
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Note for Lens:
- Lens made from materials such as N-BK7, Fused Silica, Sapphire, CaF2, Borofloat, or other optical glass supplied by Schott and Chinese CDGM are available upon request.
- Custom-made Lens at any size from Φ3.0mm to Φ200mm clear aperture are available.Besides round, Lens at shape of square are available.
- 90% clear aperture is available upon request.
- Better bevel is available upon request.
- Lens with Anti-Reflective (AR), Single layer MgF2 coating are available.
- Diameter size: smallest 3 mm
- Diameter tolerance: +0.0, -0.05mm
- Parallel focal lengt tolerance: ±2%
- Centration: 5 arc minutes
- Clear aperture: >80%
- Surface figure: power(n): <3
- Surface figure: irregularity(n): <0.5
- Surface quality: 40/20 scratch and dig
- Bevel: < 0.2 mm x 45°
- Coating: Single layer MgF2 broadband AR