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Doublets
    Publish time 2020-07-28 21:43    
Doublets
Meniscus lenses are employed to greatest advantage to they are used to shorten the length the focal length of a doublet or a plano-convex lens already working at an infinite conjugate ratio.

Specifications

Material

Fused Silica, Quartz & optical Glass

Radius

R≥1.5

Surface Finish

N＜2,△N≥λ/8

Centration

≥1’

Diameter

≥3.0 ±0.01mm

T/D

1/10

Surface Quality

20/10

Bevel

0.25mm at 45 deg

Coating

Single or Multi-layer films