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Focal length calculator for singlet lens:

Use Radius = 0 for plano surfaces.
Select a computiing method:
| |
Diameter:
Refractive Index:
Radius 1:
Center Thickness:
Radius 2:
Edge Thickness:
EFL:
BFL:
FFL:
Weight (g):
Select glass to get refractive index




nm

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Please contact us for any of your optical needs. And enquiries for prototypes are welcome becuase our manufacturing facility is extremely flexible.

Address: Room 1016, Huaxuan building, No.1558, Caoan Road, Shanghai, China
Tel: 0086-21-69105301 Fax: 0086-21-69105302
email 1: sales@optolife.com
email 2: optolife@163.com
Skype: optolife