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Class Information
Number: 250/201.8
Name: Radiant energy > Photocells; circuits and apparatus > Photocell controls its own optical systems > Automatic focus control > Based on image shift
Description: Subject matter in which the focusing is based on coincidence of two images of the same object moved in the same plane or of the displacement or distance between different images of the same object in the same plane, e.g., the photodetector plane.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7412159 |
Image pickup apparatus and defocus amount correction value calculation method |
Aug. 12, 2008 |
| 7405762 |
Camera having AF function |
Jul. 29, 2008 |
| 7365310 |
Increased depth of field for high resolution imaging for a matrix-based ion source |
Apr. 29, 2008 |
| 7266248 |
Method and apparatus for generating data representative of an image |
Sep. 4, 2007 |
| 7224498 |
Image reading apparatus |
May. 29, 2007 |
| 7216081 |
Interactive process and system for screening cytological specimens |
May. 8, 2007 |
| 7193196 |
Methods and systems for evaluating optical systems |
Mar. 20, 2007 |
| 7132634 |
Distance measuring apparatus using passive AF sensor |
Nov. 7, 2006 |
| 6930297 |
Image sensing device and distance measuring device using the image sensing device |
Aug. 16, 2005 |
| 6927376 |
Autofocusing method for telescopes pertaining to surveying equipment |
Aug. 9, 2005 |
| 6909554 |
Wafer integration of micro-optics |
Jun. 21, 2005 |
| 6884980 |
Method and apparatus for automatic focusing of an optical device |
Apr. 26, 2005 |
| 6818875 |
Auto-focusing apparatus |
Nov. 16, 2004 |
| 6812479 |
Sample positioning method for surface optical diagnostics using video imaging |
Nov. 2, 2004 |
| 6798988 |
Rangefinder apparatus and camera equipped therewith |
Sep. 28, 2004 |
| 6768540 |
Phase difference detection method, phase difference detection apparatus, range finding apparatus and imaging apparatus |
Jul. 27, 2004 |
| 6621060 |
Autofocus feedback positioning system for laser processing |
Sep. 16, 2003 |
| 6567571 |
Image sensing device capable of outputting image signals by blocks and processing circuit which processes image signals by blocks |
May. 20, 2003 |
| 6477327 |
Camera having image pick-up device |
Nov. 5, 2002 |
| 6449065 |
Method for capturing a document image, a scanner using the method and a document image management system using the scanner |
Sep. 10, 2002 |
| 6442345 |
Distance-measuring device and distance-measuring method |
Aug. 27, 2002 |
| 6438324 |
Multi-autofocus distance-measuring system with a wide distance-measuring area |
Aug. 20, 2002 |
| 6430370 |
Distance-measuring apparatus and method for camera |
Aug. 6, 2002 |
| 6396873 |
Optical device |
May. 28, 2002 |
| 6370333 |
Multipoint focus detecting apparatus |
Apr. 9, 2002 |
| 6350976 |
Distance measuring apparatus |
Feb. 26, 2002 |
| 6278847 |
Aperture coded camera for three dimensional imaging |
Aug. 21, 2001 |
| 6226125 |
Electro-optical system having a ball turret and an exterior thermal reference source |
May. 1, 2001 |
| 6208465 |
Method and apparatus for imaging an object by diffractive autofocus |
Mar. 27, 2001 |
| 6201254 |
System for determining and quantifying the alignment of an object with a coupling eyepiece and a recording apparatus |
Mar. 13, 2001 |
| 6184511 |
Photoelectric conversion apparatus |
Feb. 6, 2001 |
| 6160613 |
Charging condition control in distance measuring mechanism |
Dec. 12, 2000 |
| 6147811 |
Image reading apparatus |
Nov. 14, 2000 |
| 6144021 |
Level having an autofocus system with controllable focusing lens group |
Nov. 7, 2000 |
| 6108435 |
Method of detecting phase difference between a pair of images |
Aug. 22, 2000 |
| 6069349 |
Focus detector having a correlation operation processor |
May. 30, 2000 |
| 6052175 |
Method for measuring a distance |
Apr. 18, 2000 |
| 6047136 |
Distance meter and an apparatus having a distance meter |
Apr. 4, 2000 |
| 6002121 |
Focus detector having light deflector near image forming plane |
Dec. 14, 1999 |
| 5880455 |
Focal position detection apparatus having a light reflecting member with plural reflecting films |
Mar. 9, 1999 |
| 5877489 |
Cytological system autofocus integrity checking apparatus |
Mar. 2, 1999 |
| 5870178 |
Distance measuring apparatus |
Feb. 9, 1999 |
| 5825016 |
Focus detection device and accompanying optical equipment |
Oct. 20, 1998 |
| 5790308 |
Computerized microscope specimen encoder |
Aug. 4, 1998 |
| 5732292 |
Focus detection apparatus for interpolating correlation value between two images and self-correlation value of either image |
Mar. 24, 1998 |
| 5710662 |
Automatic focus detection device for microscopes |
Jan. 20, 1998 |
| 5703351 |
Autofocus module having a diffractively achromatized toroidal lens |
Dec. 30, 1997 |
| 5650607 |
Focus detecting device having light distribution detection |
Jul. 22, 1997 |
| 5648652 |
Optical focus evaluation and focus adjustment methods, focus evaluation and focus adjustment apparatus, and screen apparatus |
Jul. 15, 1997 |
| 5646393 |
Focus detecting apparatus including ray orientation changes |
Jul. 8, 1997 |
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