Optical system for eliminating ghost image in wide wavelength ba

Details Optical system for eliminating ghost image in wide wavelength ba Optical system for eliminating ghost image in wide wavelength ba

1991-11-08

1993-03-09

Lerner, Martin

Optical: systems and elements

Light interference

Produced by coating or lamina

359590, 359722, 359723, G02B 110, G02B 528, G02B 704

Patent

active

051930285

ABSTRACT:
A ghost image eliminating optical system in a transmission optical system including a plurality of transmission optical elements having boundary reflection surfaces, so that a ghost image can be formed by light reflected by at least two specific boundary reflection surfaces, wherein the specific boundary reflection surfaces are coated with at least two anti-reflection coatings having complementary reflection characteristics to eliminate the ghost image.

REFERENCES:
patent: 2259395 (1941-10-01), Sachtleben
patent: 2282677 (1942-05-01), Rayton

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