Optics & optical coatings
Guide | Technical Referance
Optical Formula
Snell’s law

Reflectance (Normal incidence) R0

Critical angle θR = θ2

Reflectance (P polarization) RP

Brewster angle θB = θ1

Reflectance (S polarization) RS

Translation of beam for Optical Parallel D

Deviation angle of beam by wedge plate δ

Optical Density OD

Lens formula

Focal length of Lens combinations

Focal length of a lens

Focal length of thick lens 

Focal length of biconvex lens 

Focal length of glass sphere 

Focal length of plano convex lens 

Magnification of Beam Expander B

Focal length of Concave Mirrors

Formula of concentrated beam

Beam waist 1/e2 

Resolution of light microscope 
