>

Bi-Concave Lenses


  • Introduction
  • Download
  • Feedback

Specifications:

MaterialBK7 or UV fused silica
Focal Length Tolerance±1% @589nm
Design Wavelength589nm
Centration≤3′
Diameter Tolerance+0/-0.1mm
Clear Aperture>central 90%  of  diameter
Center Thickness  Tolerance±0.1mm
Center Thickness2.5mm,nominal
Surface Quality20/10(UVFS)/ 40/20(BK7)
Surface Accuracy

≤ 1.5λ power,λ/2 irregularity(UVFS)

≤ 1.5λ power,λ/4 irregularity(BK7)

Chamfers0-0.8mm face width×45°±15°



 

Specifications:


                             LBC    ----      063      ----      068     ----     BK7   

                                ↓                           ↓                         ↓                             ↓

                     Product Code      Dia=6.35mm    Radius=-6.851mm      Material


Bi-Concave   Lenses:

Part NumberDia(mm)EFL(mm)

R(mm)

Te(mm)

Tc(mm)

Material
LBC-063-R068-BK76.35-6.3-6.8513.752.5BK7
LBC-063-R133-BK76.35-12.5-13.3333.122.5BK7
LBC-127-R133-BK712.7-12.5-13.3335.072.5BK7
LBC-127-R262-BK712.7-25-26.2593.762.5BK7
LBC-127-R521-BK712.7-50-52.1033.132.5BK7
LBC-127-R779-BK712.7-75-77.9432.922.5BK7
LBC-127-R1037-BK712.7-100-103.7852.822.5BK7
LBC-254-R262-BK725.4-25-26.2597.742.5BK7
LBC-254-R521-BK725.4-50-52.1035.042.5BK7
LBC-254-R779-BK725.4-75-77.9434.192.5BK7
  LBC-254-R1037-BK7   25.4-100-103.7853.762.5BK7
LBC-254-R1554-BK725.4-150  -155.466  3.342.5BK7
LBC-254-R2071-BK725.4-200-207.1483.132.5BK7
LBC-508-R779-BK750.8-75-77.9439.362.5BK7
LBC-508-R1037-BK750.8-100-103.7857.602.5BK7
LBC-508-R1554-BK750.8-150-155.4665.882.5BK7
LBC-508-R2071-BK750.8-200-207.1485.032.5BK7
LBC-508-R2588-BK750.8-250-258.8244.522.5BK7
LBC-508-R5172-BK750.8-500-517.2553.512.5BK7


Part NumberDia(mm)EFL(mm)

R(mm)

Te(mm)

Tc(mm)

Material
LBC-063-R118-UVFS6.35-12.5-11.8653.202.5UVFS
LBC-127-R232-UVFS12.7-25-23.2373.922.5UVFS
LBC-254-R462-UVFS25.4-50-46.295.372.5UVFS
LBC-254-R692-UVFS25.4-75-69.2414.402.5UVFS
LBC-254-R921-UVFS25.4-100-92.1923.922.5UVFS
LBC-254-R1380-UVFS25.4-150-138.0923.452.5UVFS
LBC-254-R1839-UVFS25.4-200-183.9933.212.5UVFS
LBC-254-R2298-UVFS25.4-250  -229.890  3.072.5UVFS
 LBC-254-R9183-UVFS 25.4-1000-918.3772.642.5UVFS
LBC-508-R921-UVFS50.8-100-92.1928.262.5UVFS
LBC-508-R1380-UVFS50.8-150-138.0926.312.5UVFS
LBC-508-R1839-UVFS50.8-200-183.9935.352.5UVFS
LBC-508-R2298-UVFS50.8-250-229.8904.782.5UVFS
LBC-508-R4593-UVFS50.8-500-459.3803.642.5UVFS
LBC-508-R9183-UVFS50.8-1000-918.3773.072.5UVFS


Note:

     Other sizes and focal length are available upon request. Also the lens ring mounts are available upon request.



Dear visitors! Please submit your feedback information!

  • *Name:
  • Company:
  • *Tel:
  • *Email:
  • *Message:
  • *Code:


Copyright? CASTECH Inc. all rights reserved 閩ICP備12014619號 Copyright 2012-2017 51helpdesk.com

+-