Optical Formulas

 

Spot Size


Spot Size Formula
Spot Size Formula

SAG (Sagitta) of a Spherical Surface


SAG (Sagitta) Formula
SAG (Sagitta) Formula

Depth of Focus (DOF)


Depth of Focus Formula
Depth of Focus Formula


Thick Lens Equation


Thick Lens Equation
Thick Lens Equation

Bevel Face Width (BFW)


Bevel Face Width Formula
Bevel Face Width Formula


Snell’s Law


Snell's Law Formula
Snell's Law Formula

Displacement Through Parallel Plate


Parallel Plate Displacement Formula
Parallel Plate Displacement Formula


Deviation Through Small Wedge


Wedge Displacement Formula
Wedge Displacement Formula

ETV (Edge Thickness Variation) and Wedge


ETV (Edge Thickness Variation) and Wedge Formula
ETV (Edge Thickness Variation) and Wedge Formula

Converting Between Waves and Fringes
(2 Different Wavelengths)


Converting Waves and Fringes Formula (Different Wavelengths)
Converting Waves and Fringes Formula (Different Wavelengths)

Converting Between Waves and Fringes
(Single Wavelength)


Converting Waves and Fringes Formula (Single Wavelength)
Converting Waves and Fringes Formula (Single Wavelength)