Optical scanning device, optical writing device, and image...

Details Optical scanning device, optical writing device, and image... Optical scanning device, optical writing device, and image...

2011-07-05

2011-07-05

Cherry, Euncha P (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

Reexamination Certificate

active

07973990

ABSTRACT:
An optical scanning device includes a first optical system for guiding light beams emitted from a plurality of light emitting units to an optical deflector, and a second optical system for focusing the light beams to optically scan a surface to be scanned. At least one of the first optical system and the second optical system includes a resin lens having a diffractive surface. The diffractive surface includes a diffractive portion and a refractive portion. A power of the diffractive portion and a power of the refractive portion cancel each other.

REFERENCES:
patent: 6038053 (2000-03-01), Kato
patent: 6388792 (2002-05-01), Atsuumi et al.
patent: 6448998 (2002-09-01), Suzuki et al.
patent: 6473233 (2002-10-01), Iizuka
patent: 6509995 (2003-01-01), Suzuki et al.
patent: 6596985 (2003-07-01), Sakai et al.
patent: 6771407 (2004-08-01), Hayashi et al.
patent: 6781729 (2004-08-01), Suzuki et al.
patent: 6822671 (2004-11-01), Inagaki
patent: 6856438 (2005-02-01), Takanashi et al.
patent: 6961164 (2005-11-01), Atsuumi
patent: 6999208 (2006-02-01), Suzuki et al.
patent: 7006120 (2006-02-01), Sakai et al.
patent: 7034973 (2006-04-01), Sakai
patent: 7038822 (2006-05-01), Sakai et al.
patent: 7068407 (2006-06-01), Sakai et al.
patent: 2004/0169905 (2004-09-01), Hayashi et al.
patent: 2004/0184127 (2004-09-01), Nakajima et al.
patent: 2004/0196507 (2004-10-01), Sakai
patent: 2005/0179771 (2005-08-01), Ueda
patent: 2005/0201219 (2005-09-01), Hotsuta et al.
patent: 2005/0269496 (2005-12-01), Hayashi
patent: 2006/0077500 (2006-04-01), Hayashi et al.
patent: 2006/0187294 (2006-08-01), Saisho et al.
patent: 0 872 754 (1998-10-01), None
patent: 09-105877 (1997-04-01), None
patent: 10-333070 (1998-12-01), None
patent: 11-223783 (1999-08-01), None
patent: 2001-324691 (2001-11-01), None
patent: 2002-287062 (2002-10-01), None
patent: 3483141 (2003-10-01), None
patent: 2003-337295 (2003-11-01), None
patent: 2004-126192 (2004-04-01), None
patent: 2004-280056 (2004-10-01), None
patent: 2005-227489 (2005-08-01), None
patent: 2005-258392 (2005-09-01), None
patent: 2006-035703 (2006-02-01), None
patent: 2006-071893 (2006-03-01), None
patent: 2007-249044 (2007-09-01), None
U.S. Appl. No. 12/021,850, filed Jan. 29, 2008, Watanabe et al.
U.S. Appl. No. 12/020,292, filed Jan. 25, 2008, Miyatake et al.
U.S. Appl. No. 12/028,346, filed Feb. 8, 2008, Arai et al.
U.S. Appl. No. 12/024,505, filed Feb. 1, 2008, Watanabe et al.
U.S. Appl. No. 12/031,362, filed Feb. 14, 2008, Arai et al.
U.S. Appl. No. 12/174,899, filed Jul. 17, 2008, Saisho et al.
U.S. Appl. No. 12/189,430, filed Aug. 11, 2008, Saisho.
U.S. Appl. No. 12/190,182, filed Aug. 12, 2008, Ichii et al.
Office Action issued Feb. 15, 2011, in Japanese Patent Application No. 2006-123329, filed Apr. 27, 2006 (without an English language Translation).
Office Action issued Mar. 8, 2011, in Japanese Patent Application No. 2006-125792.

Affiliated with

Also associated with

Rating

Optical scanning device, optical writing device, and image... does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2720612