Photocopying – Projection printing and copying cameras – Illumination systems or details
Reexamination Certificate
2006-08-29
2006-08-29
Kim, Peter B. (Department: 2851)
Photocopying
Projection printing and copying cameras
Illumination systems or details
C355S053000, C355S067000, C359S326000
Reexamination Certificate
active
07098992
ABSTRACT:
The light source unit includes a single wavelength oscillation light source, a light generating portion which has an optical modulator converting and emitting light from the light source into a pulse light, a light amplifying portion made up of an optical fiber group in which each fiber has a fiber amplifier to amplify the pulse light from the optical modulator, and a light amount controller. The light amount controller performs a step-by-step light amount control by individually turning on/off the light output of each fiber making up the optical fiber group, and a light amount control of controlling at least either of the frequency or the peak power of the emitted pulse light of the optical modulator. Accordingly, in addition to the step-by-step light amount control, fine adjustment of the light amount in between the steps becomes possible due to the control of at least either the frequency or the peak power of the pulse light, and if the set light amount is within a predetermined range, the light amount can be made to coincide with the set light amount.
REFERENCES:
patent: 4790619 (1988-12-01), Lines et al.
patent: 4923279 (1990-05-01), Ainslie et al.
patent: 5745284 (1998-04-01), Goldberg et al.
patent: 5838709 (1998-11-01), Owa
patent: 5909306 (1999-06-01), Goldberg et al.
patent: 6400871 (2002-06-01), Minden
patent: 6590698 (2003-07-01), Ohtsuki et al.
patent: 2001/0048083 (2001-12-01), Hagiwara
patent: 2003/0081192 (2003-05-01), Nishi
patent: 0 859 435 (1998-08-01), None
patent: 0 889 335 (1999-01-01), None
patent: 54-125189 (1979-09-01), None
patent: 55-44758 (1980-03-01), None
patent: 59-55083 (1984-03-01), None
patent: 3-235924 (1991-10-01), None
patent: 4-22928 (1992-01-01), None
patent: 5-37066 (1993-02-01), None
patent: 5-291676 (1993-11-01), None
patent: 8-334803 (1996-12-01), None
patent: 11-4031 (1999-01-01), None
patent: WO 99/46835 (1999-09-01), None
Atsumi Niichi
Doi Masaaki
Ohtsuki Tomoko
Owa Soichi
Kim Peter B.
Nikon Corporation
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
LandOfFree
Light source unit and wavelength stabilizing control method,... 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 unit and wavelength stabilizing control method,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light source unit and wavelength stabilizing control method,... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3688939