Beam splitter including a diffraction grating and one of step sh

Details Beam splitter including a diffraction grating and one of step sh Beam splitter including a diffraction grating and one of step sh

1990-03-05

1991-10-08

Henry, Jon W.

Optical: systems and elements

Diffraction

From grating

359573, 359629, 359 15, G02B 518, G02B 532, G02B 2710

Patent

active

050548840

ABSTRACT:
A beam splitter which includes a transparent layer, a diffraction grating layer and an introduction member for introducing incident light. The incident light is repeatedly totally reflected to the transparent layer. When the incident light is reflected, the incident light is also diffracted by the diffraction grating.

REFERENCES:
patent: 3674335 (1972-07-01), Ashkin et al.
patent: 3982810 (1976-09-01), Tamir et al.
patent: 4362361 (1982-12-01), Campbell et al.
patent: 4397525 (1983-08-01), Ahlen
patent: 4620791 (1986-11-01), Combastet
patent: 4671603 (1987-06-01), McQuoid
patent: 4711512 (1987-12-01), Upatnieks
patent: 4914553 (1990-04-01), Hamada et al.

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