Optics: image projectors – Miscellaneous
Reexamination Certificate
2006-07-18
2006-07-18
Lee, Wilson (Department: 2821)
Optics: image projectors
Miscellaneous
C315S224000, C315S308000, C315S225000, C315S307000
Reexamination Certificate
active
07077530
ABSTRACT:
The invention is to provide a projector of external power supply, which comprises: a DC (direct current) power supply port, a step-up circuit, a voltage regulation circuit, a lamp, and an igniter. Wherein, a DC voltage provided from outside is received by the DC power supply port and is converted to a first electric potential by the step-up circuit. The first electric potential may actuate the igniter to light up the lamp and, after the lamp is lighted up, the step-up circuit regulates the working voltage of the lamp to a second potential voltage. Wherein, the first electric potential is higher than the second electric potential.
REFERENCES:
patent: 5463287 (1995-10-01), Kurihara et al.
patent: 5990633 (1999-11-01), Hirschmann et al.
patent: 6208088 (2001-03-01), Konishi et al.
patent: 6281642 (2001-08-01), Konishi et al.
patent: 6522089 (2003-02-01), Duong et al.
patent: 6693393 (2004-02-01), Konishi et al.
patent: 6861812 (2005-03-01), Kambara et al.
patent: 6864642 (2005-03-01), Nemirow et al.
Chen Chi-Hong
Chen Chi-Jen
Chen Shih-Pin
Benq Corporation
Lee Wilson
Tran Chuc
LandOfFree
Projector of external power supply does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Projector of external power supply, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Projector of external power supply will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3604639