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Class Information
Number: 359/206
Name: Optical: systems and elements > Deflection using a moving element or medium (offsetting or changing at least a portion of the beam) > Using a periodically moving element (periodic change of optically reflecting, refracting or diffracting element) > Having particular focusing element to receive scanned light > High distortion lens (e.g., fo lens, etc.)
Description: Subject matter including a lens which forms an image which is not in proportion to a respective image source.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7460288 |
Methods for determining refractive corrections from wavefront measurements |
Dec. 2, 2008 |
| 7453616 |
Optical scanner configured so a principal ray of an incident beam from a light source to a deflector and a principal ray of a scanning beam from the deflector to a scanned surface travel on sa |
Nov. 18, 2008 |
| 7450313 |
Scanning lens molded from resin and method of positioning a scanning lens |
Nov. 11, 2008 |
| 7446918 |
Light scanning device |
Nov. 4, 2008 |
| 7443559 |
Optical scanning unit |
Oct. 28, 2008 |
| 7408689 |
Light scanning unit and image forming apparatus employing the same |
Aug. 5, 2008 |
| 7397592 |
Beam irradiation apparatus, beam irradiation method, and method for manufacturing a thin film transistor |
Jul. 8, 2008 |
| 7388698 |
Laser scanning unit with meniscus scan lens having asymmetric, negative curvature in the sub-scanning direction and absolute curvature values in the main-scanning direction that are maximal at |
Jun. 17, 2008 |
| 7355772 |
Scanner and image forming apparatus including a pre-deflection lens that has a width reduced by an emission-side concavity and that converges light incident on areas other than the thinned por |
Apr. 8, 2008 |
| 7345801 |
Laser scanning device |
Mar. 18, 2008 |
| 7274498 |
Post-objective scanning device |
Sep. 25, 2007 |
| 7268948 |
Optical element and optical scanning device using the same |
Sep. 11, 2007 |
| 7253938 |
Laser scanning apparatus |
Aug. 7, 2007 |
| 7253936 |
Laser scanning unit |
Aug. 7, 2007 |
| 7248391 |
Optical scanning system and image forming apparatus using the same |
Jul. 24, 2007 |
| 7245411 |
Collimating lens with temperature compensation and an optical scanning apparatus using the same |
Jul. 17, 2007 |
| 7230769 |
Humidity tolerant scan lens |
Jun. 12, 2007 |
| 7218433 |
Scanning apparatus using a plurality of diffracted beams |
May. 15, 2007 |
| 7202986 |
Light scanning unit |
Apr. 10, 2007 |
| 7196831 |
Two-dimensional optical scan system using a counter-rotating disk scanner |
Mar. 27, 2007 |
| 7190499 |
Laser scanning unit |
Mar. 13, 2007 |
| 7173746 |
Multi-beam scanning apparatus |
Feb. 6, 2007 |
| 7170662 |
Optical lens system, optical scanning apparatus, and image forming apparatus |
Jan. 30, 2007 |
| 7154652 |
Light scanning optical system, image projection apparatus, and image display system |
Dec. 26, 2006 |
| 7149021 |
Optical scanner and image forming apparatus using the same |
Dec. 12, 2006 |
| 7149016 |
Optical element and scanning optical system having the same and image forming apparatus |
Dec. 12, 2006 |
| 7142339 |
Multi-beam optical scanning apparatus and image forming apparatus using the same |
Nov. 28, 2006 |
| 7099061 |
Image-forming device and scanning unit for use therein |
Aug. 29, 2006 |
| 7075690 |
Optical scanning device and image forming apparatus using the same |
Jul. 11, 2006 |
| 7038823 |
Light scanning device |
May. 2, 2006 |
| 7034973 |
Scanning optical system, optical scanning device, and image forming apparatus |
Apr. 25, 2006 |
| 7016093 |
Optical scanning apparatus and image forming apparatus |
Mar. 21, 2006 |
| 7006269 |
Multi-beam scanning device |
Feb. 28, 2006 |
| 6999216 |
Reflective scanning optical system |
Feb. 14, 2006 |
| 6995919 |
F-theta lens and laser scanning unit including the same |
Feb. 7, 2006 |
| 6985312 |
Lens mounting device |
Jan. 10, 2006 |
| 6980342 |
Optical beam scanning device |
Dec. 27, 2005 |
| 6965465 |
Optical scanning apparatus and image forming apparatus using the same |
Nov. 15, 2005 |
| 6956686 |
Scanning optical system |
Oct. 18, 2005 |
| 6927917 |
Optical element, scanning optical system having the same, and image forming apparatus |
Aug. 9, 2005 |
| 6919993 |
Scanning lens and scanning optical device |
Jul. 19, 2005 |
| 6914727 |
Imaging optical system |
Jul. 5, 2005 |
| 6906824 |
Tandem type printer scanning optical system having diffraction lens structure |
Jun. 14, 2005 |
| 6895190 |
Switchable bandwidth lowpass filter |
May. 17, 2005 |
| 6859329 |
Scanning type display optical system and scanning type image display apparatus |
Feb. 22, 2005 |
| 6842187 |
Optical beam scanning device and image forming apparatus |
Jan. 11, 2005 |
| 6829001 |
Image forming apparatus |
Dec. 7, 2004 |
| 6819462 |
Optical scanning apparatus of light sources with different wavelengths |
Nov. 16, 2004 |
| 6813052 |
Optical scanner and image forming apparatus using the same |
Nov. 2, 2004 |
| 6807011 |
Humidity tolerant scan lens |
Oct. 19, 2004 |
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