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Plano-Concave Lens

Plano-Concave Lens



Plano-Concave lens diverges light with a negative focal length, with one side flat and the other concave. It is often used for beam expansion, projection and focal length enlargement of optical system. we provides uncoated, anti-reflection film coated flat - concave lens.

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Plano-Concave lens diverges light with a negative focal length, with one side flat and the other concave. It is often used for beam expansion, projection and focal length enlargement of optical system. we provides uncoated, anti-reflection film coated flat - concave lens.



Products Description
         
                                                                                                                                            
                                                                                                                                     
Material:                                
 N-BK7/H-K9L, Optical Glass, Fused Silica etc. 
Diameter tolerance:
  +/-0.1mm  
Thickness tolerance:
 +/-0.2mm
Focal tolerance:
 +/-2%
surface quality :
 60-40, 40-20, 20-10
Centration: 
 3 arcmin
Surtace flatness:
 λ/4 @632.8nm
Clear aperture: 
 90%
Bevel: 
 0.2mmX45° Protective bevel 


             
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