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Achromatic Lenses
These lenses are made of BK7, fused silica and CaF2. Special focusing systems can be designed by our engineers upon request.
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LENSES
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MATERIALS
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ILLUSTRATION
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PROPERTIES AND APPLICATIONS
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ACHROMATIC LENS
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Combinations of Two Optical Grade Glasses
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These lenses have considerably reduced values of spherical aberrations. Best used to replace single components where performance must be improved.
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Specifications:
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Diameter size
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smallest 3 mm
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Diameter tolerance
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+0.0, -0.05mm
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Parallel focal length tolerance
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±2%
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Centration
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5 arc minutes
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Clear aperture
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>80%
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Surface figure: power(n)
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<3
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Surface figure: irregularity(n)
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<0.5
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Surface quality
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40/20 scratch and dig
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Bevel
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< 0.2 mm x 45°
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Coating
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Single layer MgF2 broadband AR
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Note for Lens:
(1). 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.
(2). Custom-made Lens at any size from Φ3.0mm to Φ200mm clear aperture are available.Besides round, Lens at shape of square are available.
(3). 90% clear aperture is available upon request.
(4). Better bevel is available upon request.
(5). Lens with Anti-Reflective (AR), Single layer MgF2 coating are available.
(2). Custom-made Lens at any size from Φ3.0mm to Φ200mm clear aperture are available.Besides round, Lens at shape of square are available.
(3). 90% clear aperture is available upon request.
(4). Better bevel is available upon request.
(5). Lens with Anti-Reflective (AR), Single layer MgF2 coating are available.
