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Plano-Concave Lenses
Product Information :

Their popular applications are to increase focal lengths in existing systems. They are a more suitable choice than the equivalent equi-concave lens if the magnification lies in the range m<-5 or m>0.2

 

Specifications

Material

Sapphire, Silicon, Gemanium

Radius

R≥3.0

Surface Finish

N<3,△N≥λ/4

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

 

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

 
 
 


   
   
 
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