30 Degree Lens for Flashlights

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30 Degree Lens for Flashlights

Product Description

* 30 degree glass lens
* lens for CREE LED
* Diameter: 23mm
* surface quality: 60/40 80/50 or according to your requirement
* Tolerance: +- 0.1~+-0.2 mm
* Material type: BK7 B270 borosilicate glass and so on
Item     For choices Remark 
  Glass material   B270    BK7  QUARTZ   other material also available
  Refractive index   1.474    /  1.523  / 1.60 / 1.67   not including all
  Glass color   white and green   not including speical color
  Diameter range   10mm~250mm  
  Tolerance range   ± 0.05mm ~± 0.15mm   depend on the lens size

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