Illumination – Light source and modifier – Ionized gas or vapor light source
Reexamination Certificate
2008-04-15
2008-04-15
O'Shea, Sandra (Department: 2875)
Illumination
Light source and modifier
Ionized gas or vapor light source
C362S268000, C362S297000, C313S634000
Reexamination Certificate
active
07357531
ABSTRACT:
In a light source device (10), relations of θ1≦Tan−1(Hd/(2f1)) and T1<H≦Hd are established, where a diameter of a circle defining an edge on the neck (121) side of a usable-light reflection area in a reflecting portion (122) of a main reflecting mirror (12) is Hd, a distance between the edge on the neck (121) side of the usable-light reflection area of the reflecting portion (122) of the main reflecting mirror (12) and an emitting center O of an emitting portion (1111) in a central axis direction of the light beam irradiated from the light source device (10) is f1, an opening diameter of a base end in an extending direction of the neck (121) is H, a diameter of sealing portion (1112, 1113) is T1, and an angle formed by lines connecting inflection points (IP1) between the emitting portions (1111) and the sealing portion (1112) with the emitting center of the emitting portion (1111) and the central axis of the light beam irradiated from the light source device (10) is θ1.
REFERENCES:
patent: 6094008 (2000-07-01), Omori et al.
patent: 6623145 (2003-09-01), Ishihara
patent: 6695461 (2004-02-01), Ozawa et al.
patent: 7232241 (2007-06-01), Takezawa
patent: 2004/0095765 (2004-05-01), Hataoka et al.
patent: 1 450 100 (2004-08-01), None
patent: 1 462 850 (2004-09-01), None
patent: 1 594 157 (2005-11-01), None
patent: 1 409 904 (1975-10-01), None
patent: A 08-031382 (1996-02-01), None
patent: A 09-120067 (1997-05-01), None
patent: A 2001-125197 (2001-05-01), None
patent: WO 2004/020898 (2004-03-01), None
Akiyama Koichi
Hashizume Toshiaki
Takezawa Takeshi
O'shea Sandra
Oliff & Berridg,e PLC
Seiko Epson Corporation
Truong Bao Q.
LandOfFree
Light source device and projector does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Light source device and projector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light source device and projector will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2794558