Scanning optical apparatus

Details Scanning optical apparatus Scanning optical apparatus

2011-05-17

2011-11-29

Phan, James (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

C359S207100, C359S207300, C359S216100

Reexamination Certificate

active

08068265

ABSTRACT:
A scanning optical apparatus includes a light source, a deflecting element for deflecting a beam of light emitted from the light source, an optical device for causing the beam of light emitted from the light source to be imaged into a linear shape long in the main scanning direction on the deflecting surface of the deflecting element. The optical device is comprised of a first optical element and a second optical element, and a third optical element for causing the beam of light deflected by the deflecting element to be imaged into a spot-like shape on a surface to be scanned. The third optical element includes a single lens, the opposite lens surfaces of which both include a toric surface of an aspherical surface shape in the main scanning plane, the curvatures of the opposite lens surfaces in the sub scanning plane being continuously varied from the on-axis toward the off-axis in the effective portion of the lens.

REFERENCES:
patent: 4253102 (1981-02-01), Kataoka et al.
patent: 4352541 (1982-10-01), Minoura et al.
patent: 4561717 (1985-12-01), Kataoka et al.
patent: 4585296 (1986-04-01), Minoura et al.
patent: 4695132 (1987-09-01), Sakuma
patent: 4731623 (1988-03-01), Oda et al.
patent: 4796961 (1989-01-01), Yamada et al.
patent: 4796964 (1989-01-01), Connell et al.
patent: 4799747 (1989-01-01), Yamakawa
patent: 4847644 (1989-07-01), Oda et al.
patent: 4866459 (1989-09-01), Tokita et al.
patent: 4934772 (1990-06-01), Sakuma et al.
patent: 4955682 (1990-09-01), Yamaguchi et al.
patent: 4971411 (1990-11-01), Takanashi
patent: 5005928 (1991-04-01), Suzuki et al.
patent: 5008686 (1991-04-01), Saito
patent: 5025268 (1991-06-01), Arimoto et al.
patent: 5038156 (1991-08-01), Kuroda
patent: 5111219 (1992-05-01), Makino
patent: 5128795 (1992-07-01), Endou et al.
patent: 5179465 (1993-01-01), Kondo
patent: 5200850 (1993-04-01), Iizuka et al.
patent: 5329399 (1994-07-01), Ho
patent: 5343325 (1994-08-01), Yamakawa
patent: 5411430 (1995-05-01), Nishimura et al.
patent: 5416505 (1995-05-01), Eguchi et al.
patent: 5418639 (1995-05-01), Yamazaki
patent: 5432535 (1995-07-01), Andrews et al.
patent: 5453870 (1995-09-01), Iima
patent: 5488502 (1996-01-01), Saito
patent: 5557446 (1996-09-01), Kato
patent: 5563729 (1996-10-01), Nakamura et al.
patent: 5600476 (1997-02-01), Takada et al.
patent: 5648865 (1997-07-01), Iizuka
patent: 5652611 (1997-07-01), Nakashima et al.
patent: 5781323 (1998-07-01), Takada et al.
patent: 5818505 (1998-10-01), Kato
patent: 5883732 (1999-03-01), Takada et al.
patent: 5963356 (1999-10-01), Kato
patent: 6757004 (2004-06-01), Kato
patent: 0 291 313 (1988-11-01), None
patent: 0 328 915 (1989-08-01), None
patent: 441350 (1991-08-01), None
patent: 461660 (1991-12-01), None
patent: 0507344 (1992-10-01), None
patent: 559423 (1993-09-01), None
patent: 51-100742 (1976-09-01), None
patent: 60-33019 (1985-07-01), None
patent: 61-48684 (1986-10-01), None
patent: 62-139520 (1987-06-01), None
patent: 62-255915 (1987-11-01), None
patent: 63-157122 (1988-06-01), None
patent: 02-039120 (1990-02-01), None
patent: 02-046418 (1990-02-01), None
patent: 2-46418 (1990-02-01), None
patent: 02-054211 (1990-02-01), None
patent: 2-109011 (1990-04-01), None
patent: 2-109012 (1990-04-01), None
patent: 2-20986 (1990-05-01), None
patent: 02-221910 (1990-09-01), None
patent: 03-033712 (1991-02-01), None
patent: 4-50908 (1992-02-01), None
patent: 4-104213 (1992-04-01), None
patent: 4-41807 (1992-07-01), None
patent: 05-346549 (1993-12-01), None
patent: 06-027404 (1994-02-01), None
patent: 6-34900 (1994-02-01), None
patent: 6-222296 (1994-08-01), None
patent: 06-230308 (1994-08-01), None
patent: 06-265807 (1994-09-01), None
patent: 06-289287 (1994-10-01), None
patent: 7-13092 (1995-01-01), None
patent: 07-306371 (1995-11-01), None
patent: 8-76011 (1996-03-01), None
patent: 8-297256 (1996-11-01), None
patent: 09-033850 (1997-02-01), None
Aug. 8, 2005 Search Report in European Patent Appln. No. 01204171.
Dec. 26, 2006 Official Action in Japanese Patent Appln. No. 2005-172686 (with English-language partial translation).
Patent Abstracts of Japan, vol. 018, No. 670 (P-1845), Dec. 16, 1994 (JP-A 6-265807, Sep. 22, 1994).
Patent Abstracts of Japan, vol. 018, No. 241 (P-1733), May 9, 1994 (JP-A 6-27404, Feb. 4, 1994).
Apr. 1, 2010 European Search Report in European Patent Appln. No. 10152653.1.
Mar. 16, 2011 European Communication in European Patent Appln. No. 10152653.1.

Affiliated with

Also associated with

Rating

Scanning optical apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Scanning optical apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scanning optical apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4282047