Fabrication of neutral density (ND) filter using silver halide photo film

은염 감광성 물질을 이용한 연속 Neutral Density (ND) 필터 제작

  • Published : 2000.08.01

Abstract

Continuous ND filters are fabricated on the silver halide photoplates. These filters enable us to get intensity modulated laser beam. Two kinds of continuous ND filters are fabricated. Optical density of one filter is increased radically and that of the other is decreased. In order to get a filter having desirable optical density, a mask which has reversed optical density has to be made. made.

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References

  1. Edmund Industrial Optics 2000 Optics and Optical Instruments Catalog
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  4. Introduction to Fourier Transform(2nd edition) Mcgraw Hill Company