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Class Information
Number: 359/672
Name: Optical: systems and elements > Lens > Selective magnification by exchanging or adding a lens component
Description: Subject matter wherein one or more components of a basic lens are replaceable by one or more other components to produce in combination with any remaining components of the basic lens having substantially the same image plane as that of the basic lens but having a different equivalent focal length from that of the original basic lens.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7593163 |
Rear converter lens apparatus and taking system comprising the same |
Sep. 22, 2009 |
| 7580623 |
Lens barrel, camera, and mobile information terminal |
Aug. 25, 2009 |
| 7545576 |
Variable focal length assembly having optical lens module |
Jun. 9, 2009 |
| 7526190 |
Automatic focusing apparatus and optical instrument including automatic focusing apparatus |
Apr. 28, 2009 |
| 7499145 |
Illumination optical system and exposure apparatus having the same |
Mar. 3, 2009 |
| 7495852 |
Zoom lens assembly |
Feb. 24, 2009 |
| 7483221 |
Image reading lens, image optical system and image reader |
Jan. 27, 2009 |
| 7477454 |
Digital camera and mobile information terminal apparatus |
Jan. 13, 2009 |
| 7468850 |
Mobile communication device |
Dec. 23, 2008 |
| 7463424 |
Wide converter lens and image pickup apparatus equipped with the wide converter lens |
Dec. 9, 2008 |
| 7453647 |
Commom zoom optical system |
Nov. 18, 2008 |
| 7446946 |
Zoom optical system |
Nov. 4, 2008 |
| 7310187 |
Projection objective, especially for microlithography, and method for adjusting a projection objective |
Dec. 18, 2007 |
| 7289272 |
Optical system including an anamorphic lens |
Oct. 30, 2007 |
| 7274515 |
Bifocus lens system and a portable machine using the same |
Sep. 25, 2007 |
| 7215481 |
Taking lens, and imaging device incorporating the same |
May. 8, 2007 |
| 7209294 |
Imaging lens device and portable apparatus having imaging function |
Apr. 24, 2007 |
| 7170689 |
Front converter lens |
Jan. 30, 2007 |
| 7158311 |
Interchangeable lens system |
Jan. 2, 2007 |
| 7113344 |
Anamorphic converter, lens device using the same, and image-taking device using the same |
Sep. 26, 2006 |
| 7095563 |
Anamorphic converter, lens system, and shooting system |
Aug. 22, 2006 |
| 6831730 |
Optical magnification adjustment system and projection exposure device |
Dec. 14, 2004 |
| 6819495 |
Auxiliary optical unit attachable to optical devices, particularly telescopic gun sights |
Nov. 16, 2004 |
| 6813089 |
Extender optical system |
Nov. 2, 2004 |
| 6754008 |
Imaging lens arrangement designed for low light conditions |
Jun. 22, 2004 |
| 6738195 |
Optical magnification adjustment system and projection exposure device |
May. 18, 2004 |
| 6690518 |
Camera-attachment lens system |
Feb. 10, 2004 |
| 6654179 |
Wide converter lens system for both underwater and above-water use |
Nov. 25, 2003 |
| 6556354 |
Optical adapter for mounting camera lenses on a video camera |
Apr. 29, 2003 |
| 6552857 |
Soft-focus lens system |
Apr. 22, 2003 |
| 6542310 |
Wide converter lens |
Apr. 1, 2003 |
| 6449100 |
Teleconverter lens |
Sep. 10, 2002 |
| 6404563 |
Portable electronic device having variable focus display |
Jun. 11, 2002 |
| 6373638 |
Image taking optical system and reduction optical system |
Apr. 16, 2002 |
| 6313952 |
Adapter lens system for a greenough-type stereomicroscope |
Nov. 6, 2001 |
| 6288767 |
Imaging optical system |
Sep. 11, 2001 |
| 6212016 |
Telescopic objective lens system |
Apr. 3, 2001 |
| 6181482 |
Variable ratio anamorphic lens |
Jan. 30, 2001 |
| 6160668 |
Optical systems |
Dec. 12, 2000 |
| 6128145 |
Image pick-up device, image display device and information recording medium comprising a fisheye lens |
Oct. 3, 2000 |
| 6124981 |
Attachment lens having diffraction surface |
Sep. 26, 2000 |
| 6002533 |
Close-up attachment lens |
Dec. 14, 1999 |
| 5930034 |
Microscope with a telescopic function and method |
Jul. 27, 1999 |
| 5909309 |
Method and apparatus for correcting geometrical distortions in an intensified imaging system |
Jun. 1, 1999 |
| 5801886 |
Image magnification apparatus |
Sep. 1, 1998 |
| 5757544 |
Image display apparatus |
May. 26, 1998 |
| 5712720 |
Lens switching apparatus for dual-lens optical scanner |
Jan. 27, 1998 |
| 5602682 |
Aberration correcting plate for interchangeable lens |
Feb. 11, 1997 |
| 5515206 |
Multi-facet lens component |
May. 7, 1996 |
| 5459615 |
Miniature fixed-focal-length lens system |
Oct. 17, 1995 |
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