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长春佳福光电子有限公司 > Spherical lens > Plano-Concave Spherial Lens
spherical lens
Plano-Concave Spherial Lens

Plano-Concave Lens


A plano-concave lens is compose of a plane and concave surface, has a negative focal length and negative spherical aberration, which often can be used to expand beam or increase focal length, and balance out aberrations of other lenses in the system. It can be widely used in Projection Systems,Imaging Systems,Laser Measurement Systems.

Parameter

 

Diameter

2-150mm

Diameter Tolerance

+0/-0.1mm

Thickness Tolerance

+/-0.15mm

Focal Length Tolerance

+/-2%mm

Centration

<3

Bevel

0.2mm-0/+0.2X45°

Surface Quality

60/40 

Surface Flatness 

lambda/4@633nm

Clear Aperture

>90%

Material

Optical crystal such as glass, quartz, calcium fluoride, germanium, silicon

Coating

Specified by Customers

编号(NO.)

材料(Material

焦距(EFL)

直径(Dia)

中心厚(Tc)

边厚(Te)

R1    

R2

镀膜(coating

数量(Quantity)

 

K9

 

8*8

3

 

50.00

 


5

K9

12.7

6

100


9

K9

12*12

5

1000


9