Technical Seminar-King kowok Optics_Professionally provide projection lenses

Dongguan Jingguo Optical Co., Ltd.

Dongguan King kowok Optics Co., Ltd

+86-769-88519128

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Technical Seminar

A	Distance from front edge of lens to front focal point
BF	Back focal length
C.A.	Clear aperture
CT	Center thickness
D	Distance from back edge of lens to back focal point
DIA	Diameter
EFL	Equivalent focal length
ET	Edge thickness
f/#	f-number (focal length ÷ entrance pupil)
FF	Front focal length
H	Height
H₁	First principal point
H₂	Second principal point
L	Length
n_C	Index of refraction for red hydrogen C line (0.6563 microns)
n_d	Index of refraction for yellow helium line (0.5876 microns)
n_F	Index of refraction for blue hydrogen F line (0.4861 microns)
R₁	First radius (moving from left to right)
R₂	Second radius (moving from left to right)
R₃	Third radius (moving from left to right)
R₄	Fourth radius (moving from left to right)
S	Object distance
S'	Image distance
V₁	First vertex
V₂	Second vertex
W	Width
D	Abbe constant

Dongguan King kowok Optics Co., Ltd

Optical products one-stop service manufacturer

E-mail

andy@kingkowok.com.cn

Tel

+86-769-88519128

Add.

Building 3, Area 4, China-Korea Bridge Industrial Zone, Wangniudun Town, Dongguan City

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