Holographic optical device, camera finder indication, and...

Details Holographic optical device, camera finder indication, and... Holographic optical device, camera finder indication, and...

2003-12-03

2008-09-16

Perkey, W. B. (Department: 2862)

Photography

Having camera indicator

Nonmechanical visual display

C396S296000, C359S013000, C349S011000

Reexamination Certificate

active

07426343

ABSTRACT:
The present invention relates to a holographic optical element (8), a viewfinder display (5, 6, 7) of a camera (1) using thereof, and a camera (1). The purpose of the present invention is to show various superimposed displays for various information with securing a bright viewfinder image. In the holographic optical element according to the present invention, a liquid crystal (13) whose orientation is changeable and a liquid crystal (14) whose orientation is fixed are arranged alternately with a striped shape between the transparent members (12a) (12b) on which the transparent electrodes (11a) (11b) are formed facing with each other.

REFERENCES:
patent: 5978607 (1999-11-01), Teremy et al.
patent: 6115151 (2000-09-01), Popovich
patent: 6169854 (2001-01-01), Hasegawa et al.
patent: 6556179 (2003-04-01), Iwane et al.
patent: 7016604 (2006-03-01), Stavely et al.
patent: 2001/0016084 (2001-08-01), Pollard et al.
patent: 2003/0147112 (2003-08-01), Mukawa
patent: 4-324844 (1992-11-01), None
patent: 6-59256 (1994-03-01), None
patent: 6-308471 (1994-11-01), None
patent: 7-319032 (1995-12-01), None
patent: 10-048592 (1998-02-01), None
patent: 11-271536 (1999-10-01), None
patent: 2001-51335 (2001-02-01), None
patent: 2002-122906 (2002-04-01), None
patent: 2002-221710 (2002-08-01), None
patent: WO99/24852 (1999-05-01), None

Affiliated with

Also associated with

Rating

Holographic optical device, camera finder indication, and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Holographic optical device, camera finder indication, and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Holographic optical device, camera finder indication, and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3975836