Band-pass filter and image display apparatus

Optical: systems and elements – Holographic system or element – Using a hologram as an optical element

Reexamination Certificate

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Details

C359S013000

Reexamination Certificate

active

07095538

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: 5071210 (1991-12-01), Arnold 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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