古怪猴子官方下载网站
>

Negative Meniscus 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
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°


 

Order Information:


                             LNS    ----     254     ----     R950    ----     R459    ----    BK7   

                                ↓                           ↓                         ↓                          ↓                        

                    Product Code    Diameter  25.4mm    R1=95mm       R2=-45.9mm         Material


BK7 Meniscus  Lenses:


Part NumberDia(mm)Tc(mm)Te(mm)

R1(mm)

R2(mm)

EFL(mm)

Material
LNS-254-R950-R459-BK725.42.863.895.0-45.9-175.0BK7
LNS-254-R1000-R431-BK725.43.734.77100-43.11-150.0BK7
LNS-254-R900-R373-BK725.42.023.3100-38.973-125.0BK7
LNS-254-R900-R326-BK725.42.323.92100-33.8-100BK7


Note:

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


  • Negative Meniscus Lenses2017-08-24download

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

古怪猴子官方下载网站 欢乐球吃球哪儿做攻略 至尊百家乐 昆虫派对电子游戏 轩辕传奇2海神70级战力 森林狼vs火箭2018 至尊彩极速快3 以太币对美元 那不勒斯舞曲介绍 罗马和乌迪内斯足球 天津第戎蛋糕文化中心 糖果游行在线客服 中国福利彩票双色球计算公式 +-