Ultraviolet laser variable power beam expansion lens

Ultraviolet laser variable power beam expansion lens

  • CN 101,887,173 A
  • Filed: 06/22/2010
  • Published: 11/17/2010
  • Est. Priority Date: 06/22/2010
  • Status: Active Application
First Claim
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1. ultraviolet laser variable power beam expansion lens, it is characterized in that:

  • it comprises first lens that are provided with along the incident ray transmission direction, second lens, and the 3rd lens, the wherein said first lens L1 is protruding flat pattern positive lens, and the second lens L2 is the double concave type negative lens, and the 3rd lens L3 is the convex positive lens, maximum light inlet diameter of phi=2-8mm that this ultraviolet laser variable power beam expansion lens can allow, wavelength X=355nm.

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