Liquid crystal shutter device for a camera

Details Liquid crystal shutter device for a camera Liquid crystal shutter device for a camera

2006-05-24

2008-11-11

Font, Frank G (Department: 2883)

Liquid crystal cells, elements and systems

Liquid crystal system

Liquid crystal for recording or imaging on photosensitive...

C396S249000

Reexamination Certificate

active

07450187

ABSTRACT:
A liquid crystal shutter (100) and a camera (200) with therein. The liquid crystal shutter (100) includes a power supply (10), a switch (20) and a liquid crystal box (40), all parts are electrically connected and form a control circuit. The liquid crystal box (40) includes a first electric plate (42), a first polarizing filter (424), a second electric plate (44), and a second polarizing filter (444). A predetermined amount of liquid crystal (46) is contained between the first electric plate (42) and the second electric plate (44). The first polarizing filter (424) is formed on a surface of the first electric plate (42). A second polarizing filter (444) is formed on a surface of the second electric plate (44). The axial direction of the second polarizing filter (444) is perpendicular to that of the first polarizing filter (424).

REFERENCES:
patent: 4927242 (1990-05-01), Aoki et al.
patent: 5150226 (1992-09-01), Takanashi et al.
patent: 5694188 (1997-12-01), Sano et al.
patent: 6377327 (2002-04-01), De Koning
patent: 6439731 (2002-08-01), Johnson et al.
patent: 6665026 (2003-12-01), Chen et al.
patent: 6697060 (2004-02-01), Tsuchiya
patent: 2002/0003571 (2002-01-01), Schofield et al.
patent: 2005/0036082 (2005-02-01), Lai
patent: 85108772 (1986-09-01), None
patent: 1032182 (1989-04-01), None

Affiliated with

Also associated with

Rating

Liquid crystal shutter device for a camera does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Liquid crystal shutter device for a camera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid crystal shutter device for a camera will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4032082