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Lens width..................................2a

Lens sag.....................................h

Radius of curvature.....................Rc

Effective front focal length...........f FFL

Effective back focal length...........f BFL

Focal length in glass....................fg

Refractive index of glass..............n

Wavelength................................λ

Conic constant...........................CC

Effective front focal length

Effective back focal length

Focal length in glass

Numerical aperture

F - number

Fresnel number

Lens sag
             1 rad = 57.296°       1° = 17.45 mrad
                       
 Flat Top distribution by means of 1 array                                        
                                        
© [aµs] 2013
Last update 12.07.2022
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