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Browse by Category: Main > Optical & Optics
Class Information
Number: 359/677
Name: Optical: systems and elements > Lens > With variable magnification (e.g., zoom type) > Optically compensated
Description: Subject matter wherein the lens is physically linked and dependently moved to maintain an equivalent focal length.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8446680 Zoom lens and imaging apparatus May. 21, 2013
8446678 Image forming optical system and electronic image pickup apparatus equipped with same May. 21, 2013
8338744 Condensing optical system, laser processing method and apparatus, and manufacturing method of brittle material blank Dec. 25, 2012
8289624 Imaging lens system Oct. 16, 2012
8084969 Hall-effect based linear motor controller Dec. 27, 2011
7623306 Zoom lens and imaging apparatus incorporating the same Nov. 24, 2009
7589905 Optical system and optical apparatus including the same Sep. 15, 2009
7365815 Phase retardation film and liquid crystal display device including the same Apr. 29, 2008
7321349 Display element, display device, and microlens array Jan. 22, 2008
7289273 Zoom lens and electronic imaging apparatus having the same Oct. 30, 2007
7245432 Dual diffraction-grating device Jul. 17, 2007
6977777 Active optical zoom system Dec. 20, 2005
6943959 Objective optical system Sep. 13, 2005
6927920 Zoom optical system and imaging apparatus using the same Aug. 9, 2005
6894845 System and methods for providing a zoom lens device May. 17, 2005
6496310 Optical system and optical apparatus provided with the same Dec. 17, 2002
6462885 Zoom lens and photographing apparatus having the same Oct. 8, 2002
6373639 Zoom lens having an image stabilizing function Apr. 16, 2002
6335833 Afocal zoom lens system for streroscopic microscopes Jan. 1, 2002
6278558 Transverse zoom lens set Aug. 21, 2001
6137637 Prism-type objective lens for the pickup head of an optical disc drive capable of driving two types of optical discs Oct. 24, 2000
6067196 Zoom lens system May. 23, 2000
6057964 Process for imaging image points of a video picture and associated apparatus May. 2, 2000
6046861 Zoom lens system having imaging and non-imaging ranges Apr. 4, 2000
6008951 Offset projection zoom lens with fixed rear group for reflective spatial light modulators Dec. 28, 1999
6002526 Zoom lens system Dec. 14, 1999
5991090 Afocal zoom system Nov. 23, 1999
5978149 Zoom lens system Nov. 2, 1999
5872658 Zoom lens system Feb. 16, 1999
5841588 Zoom lens system with vibration reduction means Nov. 24, 1998
5805348 Lens system with reduced sensitivities and a method of manufacturing Sep. 8, 1998
5760957 Zoom lens having the vibration-reduction function Jun. 2, 1998
5751496 Zoom lens of rear focus type May. 12, 1998
5717525 Zoom lenses Feb. 10, 1998
5619381 Offset zoom lens for reflective light modulators Apr. 8, 1997
5572365 Zoom lens system Nov. 5, 1996
5548445 Zoom lens system Aug. 20, 1996
5502594 Zoom lens incorporating vibration-proofing function Mar. 26, 1996
5329402 Wide-angle zoom lens Jul. 12, 1994
5321553 Zoom lens Jun. 14, 1994
5268790 Zoom lens employing refractive and diffractive optical elements Dec. 7, 1993
4978205 Vibration-isolating optical system Dec. 18, 1990
4971428 Catadioptric zoom lens Nov. 20, 1990
4630899 Zoom lens having movable diaphragm Dec. 23, 1986
4624536 Four component zoom lens Nov. 25, 1986
4564267 Variable-focal-length lens Jan. 14, 1986
4377325 Bright and compact optical-compensation type zoom lens system Mar. 22, 1983
4348082 Zoom lens having high zoom ratio including wide angle range Sep. 7, 1982
4240700 Wide angle zoom lens having a high variation ratio Dec. 23, 1980
4232942 Optically compensated zoom lens Nov. 11, 1980

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