Fine-line diffractive subtractive color filters

Details Fine-line diffractive subtractive color filters Fine-line diffractive subtractive color filters

1977-10-11

1978-12-19

Stern, Ronald J.

350162SF, 350314, G02B 518

Patent

active

041303474

ABSTRACT:
Rectangular groove profile grating, having an effective line spacing no greater than 2.mu.m, has grating parameters specified to provide at least acceptable or, preferably, good zero diffraction order color characteristics for subtractive primary colors and green when grating is illuminated with unpolarized white light.

REFERENCES:
patent: 2769111 (1956-10-01), Sadowsky
patent: 3911479 (1975-10-01), Sakurai
patent: 3957354 (1976-05-01), Knop
patent: 4009939 (1977-03-01), Okano
patent: 4057326 (1977-11-01), Knop
patent: 4062628 (1977-12-01), Gale
patent: 4082453 (1978-04-01), Knop

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