Band-pass filter and image display apparatus

Details Band-pass filter and image display apparatus Band-pass filter and image display apparatus

2006-04-04

2006-04-04

Boutsikaris, Leonidas (Department: 2872)

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

C359S589000, C359S001000

Reexamination Certificate

active

07023592

ABSTRACT:
A band-pass filter has a reflecting optical element having a fixed reflection angle selection region for wavelengths of a given region, and has an optical path such that reflection is performed at least once and transmission is performed at least once at the reflecting optical element.

REFERENCES:
patent: 3940203 (1976-02-01), La Russa
patent: 4407564 (1983-10-01), Ellis
patent: 4830464 (1989-05-01), Cheysson et al.
patent: 4874214 (1989-10-01), Cheysson et al.
patent: 5071564 (1991-12-01), Stein et al.
patent: 2002/0001110 (2002-01-01), Metz et al.
patent: 0 943 934 (1999-09-01), None

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