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Class Information
Number: 250/201.2
Name: Radiant energy > Photocells; circuits and apparatus > Photocell controls its own optical systems > Automatic focus control
Description: Subject matter in which at least one photocell is used to automatically adjust a lens to form a distinct image of an object on an imaging surface.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7627239 |
Image-taking apparatus and focusing method |
Dec. 1, 2009 |
| 7622696 |
Optical head device, optical information recording/reproducing apparatus and operation method of optical information recording/reproducing apparatus |
Nov. 24, 2009 |
| 7619189 |
Imaging apparatus with autofocus function, imaging method, storage medium, and integrated circuit |
Nov. 17, 2009 |
| 7609372 |
System and method for measuring length of camera lens |
Oct. 27, 2009 |
| 7605353 |
Method and apparatus for creating high-quality digital images |
Oct. 20, 2009 |
| 7595471 |
Auto focusing of a workpiece using an array detector each with a detector identification |
Sep. 29, 2009 |
| 7586072 |
Correlation operation method, correlation operation device, focus detection device and imaging device |
Sep. 8, 2009 |
| 7583380 |
Spectroscopic analysis apparatus and method with excitation system and focus monitoring system |
Sep. 1, 2009 |
| 7582854 |
Focus detection apparatus for detecting a relative positional relationship between a pair of object images |
Sep. 1, 2009 |
| 7576307 |
Microscope with dual image sensors for rapid autofocusing |
Aug. 18, 2009 |
| 7573011 |
Zoom module using actuator and lead screw with translating operation |
Aug. 11, 2009 |
| 7570431 |
Optical arrangement of autofocus elements for use with immersion lithography |
Aug. 4, 2009 |
| 7564012 |
Method for automatically focusing in photographic module and electronic device thereof |
Jul. 21, 2009 |
| 7547866 |
Laser irradiation method and method for manufacturing semiconductor device including an autofocusing mechanism using the same |
Jun. 16, 2009 |
| 7547867 |
Positioning device and positiioning method |
Jun. 16, 2009 |
| 7544919 |
Focus assist system and method |
Jun. 9, 2009 |
| 7538308 |
Image processing apparatus and control method thereof |
May. 26, 2009 |
| 7535556 |
Methods and apparatus for optical analysis of samples in biological sample containers |
May. 19, 2009 |
| 7528354 |
Method and device for position sensing of an optical component in an imaging system |
May. 5, 2009 |
| 7521692 |
TDI detecting device, a feed-through equipment, an electron beam apparatus using these device and equipment, and a semiconductor device manufacturing method using the same electron beam appara |
Apr. 21, 2009 |
| 7514660 |
Focusing apparatus, focusing method, and inspection apparatus |
Apr. 7, 2009 |
| 7512332 |
Camera with superimpose indication function |
Mar. 31, 2009 |
| 7504647 |
Method and apparatus for inspecting a sample having a controller for determining an estimated height of the detector from the sample |
Mar. 17, 2009 |
| 7488923 |
Focus detection device, optical system and focus detection method |
Feb. 10, 2009 |
| 7485834 |
Method and apparatus for estimating an in-focus position |
Feb. 3, 2009 |
| 7485837 |
Image sensor |
Feb. 3, 2009 |
| 7473877 |
System and method for utilizing an autofocus feature in an automated microscope |
Jan. 6, 2009 |
| 7469099 |
Image-taking apparatus and focusing method |
Dec. 23, 2008 |
| 7442908 |
Method for optically detecting deviations of an image plane of an imaging system from the surface of a substrate |
Oct. 28, 2008 |
| 7439477 |
Laser condensing optical system |
Oct. 21, 2008 |
| 7433586 |
Camera with an auto-focus function |
Oct. 7, 2008 |
| 7432485 |
Method and apparatus for detection of a speckle based physically unclonable function |
Oct. 7, 2008 |
| 7414231 |
Focus-state detecting device, image sensing apparatus and image sensing system having same and lens unit mounted thereon |
Aug. 19, 2008 |
| 7414794 |
Optical arrangement of autofocus elements for use with immersion lithography |
Aug. 19, 2008 |
| 7415201 |
Auto focusing device for camera and method used in auto focusing device for camera for determining whether or not to emit auxiliary light |
Aug. 19, 2008 |
| 7412159 |
Image pickup apparatus and defocus amount correction value calculation method |
Aug. 12, 2008 |
| 7405383 |
Optical pickup device having three light sources with a holographic element for directing diffraction light to photodetectors |
Jul. 29, 2008 |
| 7397018 |
Amplitude and phase controlled adaptive optics system |
Jul. 8, 2008 |
| 7394048 |
Focusing device, focusing method and a pattern inspecting apparatus |
Jul. 1, 2008 |
| 7391928 |
Image processing for correcting defects of read image |
Jun. 24, 2008 |
| 7388720 |
Imaging apparatus |
Jun. 17, 2008 |
| 7365295 |
Image inspection system for correcting focal position in autofocusing |
Apr. 29, 2008 |
| 7361874 |
Auto focusing mechanism of surveying instrument |
Apr. 22, 2008 |
| 7355154 |
Image sensing apparatus with movable light flux splitter and control method thereof |
Apr. 8, 2008 |
| 7352477 |
Two dimensional position detecting device |
Apr. 1, 2008 |
| 7345706 |
Auto focus system |
Mar. 18, 2008 |
| 7339147 |
System and method for automatic focusing of images |
Mar. 4, 2008 |
| 7330278 |
Optical displacement measurement device |
Feb. 12, 2008 |
| 7321108 |
Dynamic focusing method and apparatus |
Jan. 22, 2008 |
| 7319216 |
Light receiving unit and image taking apparatus |
Jan. 15, 2008 |
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