Edmund Optics Tech Tools Equations

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Cookie 声明由Cookiebot最后更新于 4/14/25

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Edmund Optics Tech Tools Equations

Equations and corresponding legends for each of our Edmund Optics Tech Tools.

Focal Length

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

(11)

F_OS	Power of Surface 1
F_IS	Power of Surface 2
F	Lens Power
n_OS	Object Space Index
n_L	Lens Index
n_IS	Image Space Index
R₁	Radius of Surface 1
R₂	Radius of Surface 2
CT	Center Thickness
P	Primary Principle Point
P'	Secondary Principle Point
EFL	Effective Focal Length
BFL	Back Focal Length
FFL	Front Focal Length
NPS	Nodal Point Shift
f_F	Front Focal Point
f_R	Rear Focal Point

Gaussian Beam

(12)

(13)

(14)

(15)

(16)

(17)

?	Wavelength
z_R	Rayleigh Range
z	Axial Distance
?(z)	Half Beam Diameter
?₀	Beam Waist
b	Confocal Parameter
?_R	Rayleigh Half Diameter
R(z)	Radius of Curvature
?	Half Angle Divergence

Koehler Illumination

(18)

(19)

(20)

(21)

(22)

(23)

(24)

d₁	Source to Lens 1 Distance
d₂	Lens 1 to Lens 2 Distance
d₃	Lens 2 to Spot Diameter Distance
D_L1	Diameter of Lens 1
D_L2	Diameter of Lens 2
F_L1	Focal Length of Lens 1
F_L2	Focal Length of Lens 2
D_source	Source Diameter
D_spot	Spot Diameter
NA_input	Input Numerical Aperture
NA_output	Output Numerical Aperture

Laser Spot Size

(25)

D_I	Input Beam Diameter
D_O	Output Beam Diameter
?_I	Beam Divergence
L	Working Distance

1951 USAF

(26)

SAG

(27)

R	Radius of Curvature
D	Diameter

Simple Magnifier

(28)

(29)

MP	Magnifying Power
FL	Focal Length