Optical apparatus and viewing optical system thereof which...

Details Optical apparatus and viewing optical system thereof which... Optical apparatus and viewing optical system thereof which...

2005-07-05

2005-07-05

Chang, Audrey (Department: 2872)

Optical: systems and elements

Single channel simultaneously to or from plural channels

By partial reflection at beam splitting or combining surface

C359S013000, C359S015000, C359S625000, C359S630000, C359S631000, C359S632000, C359S633000, C359S638000, C359S640000, C359S900000, C345S007000, C345S008000, C345S009000

Reexamination Certificate

active

06914726

ABSTRACT:
A viewing optical system of an optical apparatus has an objective system for forming an image of an object and an eyepiece system for enlarging and directing the image to the pupil. The viewing optical system also has a hologram combiner comprising holograms of the volume type, phase type, and reflective type and having optical power for constructing a surface which is optically equivalent to the image surface at a different position than the image when viewed from the pupil. The system also includes an information display means for displaying information at the position of the equivalent surface, wherein the hologram combiner transmits light from the image and reflects light from the information display means so as to allow viewing of an image together with the information display overlaid onto the image.

REFERENCES:
patent: 4027327 (1977-05-01), Harada
patent: 4576458 (1986-03-01), Cho et al.
patent: 5355224 (1994-10-01), Wallace
patent: 2 123 974 (1982-07-01), None
patent: 51-19530 (1976-02-01), None
patent: 58-27504 (1983-02-01), None
patent: 59-185319 (1984-10-01), None
patent: 53-46508 (1993-12-01), None

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