Coherent light generators – Particular active media – Plural active media or active media having plural dopants
Reexamination Certificate
2008-04-01
2008-04-01
Thompson, Timothy (Department: 2873)
Coherent light generators
Particular active media
Plural active media or active media having plural dopants
C372S075000, C372S101000, C359S717000
Reexamination Certificate
active
07352789
ABSTRACT:
Laser light is emitted from a laser oscillator, and the laser light is made to enter a beam expander optical system including a concave lens through a correction lens. The laser oscillator, the correction lens and the concave lens are disposed so that, when an emission point of the laser oscillator is a first conjugate point, a point at which an image at the first conjugate point is formed through the correction lens is a second conjugate point, a distance between the correction lens and the second conjugate point is b, a focal length of the concave lens is f, and a distance between the correction lens and the concave lens is X, the X satisfies b−3|f|≦X≦b+|f|.
REFERENCES:
patent: 4942586 (1990-07-01), Lai
patent: 5225924 (1993-07-01), Ogawa et al.
patent: 5537258 (1996-07-01), Yamazaki et al.
patent: 5617243 (1997-04-01), Yamazaki et al.
patent: 5815494 (1998-09-01), Yamazaki et al.
patent: 6373870 (2002-04-01), Yamazaki et al.
patent: 6426840 (2002-07-01), Partanen et al.
patent: 6558991 (2003-05-01), Yamazaki et al.
patent: 7050878 (2006-05-01), Yamazaki et al.
patent: 7138306 (2006-11-01), Tanaka et al.
patent: 2003/0058916 (2003-03-01), Tanaka et al.
patent: 2004/0257669 (2004-12-01), Koehler
patent: 2005/0111497 (2005-05-01), Tanaka
patent: 2006/0119949 (2006-06-01), Tanaka et al.
patent: 10144244 (2003-03-01), None
patent: 0627643 (1994-12-01), None
patent: 07-041845 (1995-02-01), None
Search Report issued May 2, 2007, in counterpart European Patent Application No. 07000062.5.
Costellia Jeffrey L.
Nixon & Peabody LLP
Semiconductor Energy Laboratory Co,. Ltd.
Thompson Timothy
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