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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 |
| 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 |
| 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 |
| 7414231 |
Focus-state detecting device, image sensing apparatus and image sensing system having same and lens unit mounted thereon |
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 |
| 7297910 |
System and method for utilizing an autofocus feature in an automated microscope |
Nov. 20, 2007 |
| 7253384 |
Focusing system using light source and image sensor |
Aug. 7, 2007 |
| 7251087 |
Lens driving apparatus and image pick-up apparatus including the same |
Jul. 31, 2007 |
| 7248337 |
Lithographic apparatus, level sensor, method of inspection, device manufacturing method, and device manufactured thereby |
Jul. 24, 2007 |
| 7230724 |
Three-dimensional measuring apparatus for scanning an object and a measurement head of a three-dimensional measuring apparatus and method of using the same |
Jun. 12, 2007 |
| 7227127 |
High speed microscope with three-dimensional laser beam scanning including acousto-optic deflector for controlling the lateral position and collimation of the light beam |
Jun. 5, 2007 |
| 7211777 |
Confocal microscope apparatus to measure a stereoscopic shape of a sample |
May. 1, 2007 |
| 7205518 |
Method and arrangement for focusing in an optical measurement |
Apr. 17, 2007 |
| 7205519 |
Confocal microscope display device for displaying a plurality of slice images |
Apr. 17, 2007 |
| 7202953 |
Scanning microscopic method having high axial resolution |
Apr. 10, 2007 |
| 7196300 |
Dynamic focusing method and apparatus |
Mar. 27, 2007 |
| 7193196 |
Methods and systems for evaluating optical systems |
Mar. 20, 2007 |
| 7193731 |
Optical displacement sensor |
Mar. 20, 2007 |
| 7183530 |
Imaging device and electronic apparatus with the same |
Feb. 27, 2007 |
| 7181082 |
Blur detection system |
Feb. 20, 2007 |
| 7161127 |
Automatic focusing apparatus and automatic focusing method using an index value based on background color information |
Jan. 9, 2007 |
| 7157677 |
Method of picking up sectional image of laser light |
Jan. 2, 2007 |
| 7154074 |
Telescope main body and spotting scope |
Dec. 26, 2006 |
| 7126098 |
Taking lens having focus determination optical system |
Oct. 24, 2006 |
| 7122774 |
System and method of wavefront sensing |
Oct. 17, 2006 |
| 7116492 |
Imaging apparatus |
Oct. 3, 2006 |
| 7110035 |
Device and a method for an infrared image analyzing autofocus |
Sep. 19, 2006 |
| 7095001 |
Image sensing apparatus and method performing blur correction using electrical coordinate conversion |
Aug. 22, 2006 |
| 7092069 |
Projection exposure method and projection exposure system |
Aug. 15, 2006 |
| 7087877 |
Auto focus for a flow imaging system |
Aug. 8, 2006 |
| 7084383 |
Image processing apparatus |
Aug. 1, 2006 |
| 7075046 |
Objective lens reference system and method |
Jul. 11, 2006 |
| 7075077 |
Method of observing a specimen using a scanning electron microscope |
Jul. 11, 2006 |
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