Resources Contact Us Home
Browse by Category: Main > Electrical & Energy
Class Information
Number: 250/201.4
Name: Radiant energy > Photocells; circuits and apparatus > Photocell controls its own optical systems > Automatic focus control > Active autofocus
Description: Subject matter having means to illuminate the object with light other than, or supplementary to, ambient light.

Sub-classes under this class:

Class Number Class Name Patents
250/201.5 With optical storage medium; e.g., optical disc, etc. 596

Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
8710412 Focus information generating device and focus information generating method Apr. 29, 2014
8570532 Noncontact surface shape measuring method and apparatus thereof Oct. 29, 2013
8558154 System and method for continuous, asynchronous autofocus of optical instruments using multiple calibration curves Oct. 15, 2013
8507835 Auto-focusing method which uses a different focus determining method according to a type of corresponding focus graph, recording medium recording the method, and auto-focusing apparatus perfor Aug. 13, 2013
8507834 System and method for autofocusing an optical system through image spectral analysis Aug. 13, 2013
8492693 Autofocus apparatus Jul. 23, 2013
8481904 Autofocus system with stray light compensation Jul. 9, 2013
8476581 Speckle reduction method and apparatus Jul. 2, 2013
8391582 System and method for scanning of probe arrays Mar. 5, 2013
8392199 Clipping detection device and method Mar. 5, 2013
8362409 System and method for continuous, asynchronous autofocus of optical instruments Jan. 29, 2013
8269157 Optical imaging system Sep. 18, 2012
8253094 Aperture unit controlled by magnetic field and a heater embeded in a cylindrical member and imaging system using same Aug. 28, 2012
8233078 Auto focus speed enhancement using object recognition and resolution Jul. 31, 2012
8208202 Focus detection apparatus, microscope Jun. 26, 2012
8159908 Photo diode ic Apr. 17, 2012
8154808 Autofocus imaging apparatus Apr. 10, 2012
8125637 Optical beam spectrometer with movable lens Feb. 28, 2012
8059954 Single lens reflex camera comprising a focus detecting apparatus and method of photographing Nov. 15, 2011
8004655 Automatic focus adjusting mechanism and optical image acquisition apparatus Aug. 23, 2011
8000511 System for and method of focusing in automated microscope systems Aug. 16, 2011
7989756 Active-isolation mounts for optical elements Aug. 2, 2011
7977616 Microscope equipped with automatic focusing mechanism and adjustment method thereof Jul. 12, 2011
7956312 Optical disc device Jun. 7, 2011
7868279 Focus detecting apparatus for focusing on surface of transparent substance Jan. 11, 2011
7869022 Inspection method and apparatus lithographic apparatus, lithographic processing cell, device manufacturing method and distance measuring system Jan. 11, 2011
7843634 Automatic focus detection device and microscope system having the same Nov. 30, 2010
7838816 Speckle reduction method and apparatus Nov. 23, 2010
7791008 Single spot focus control Sep. 7, 2010
7781710 Image pickup apparatus, control method, and program with autofocus selection Aug. 24, 2010
7700903 Method and apparatus for the auto-focussing infinity corrected microscopes Apr. 20, 2010
7626151 Autofocus system and method for autofocusing an optical imaging instrument Dec. 1, 2009
7619189 Imaging apparatus with autofocus function, imaging method, storage medium, and integrated circuit Nov. 17, 2009
7612316 Focus detection device and fluorescent observation device using the same Nov. 3, 2009
7595481 Scanning optical system measuring device and scanning optical system measuring method Sep. 29, 2009
7595475 Image-pickup apparatus having a focus controller and an exposure controller Sep. 29, 2009
7583380 Spectroscopic analysis apparatus and method with excitation system and focus monitoring system Sep. 1, 2009
7550699 Removal of unwanted reflections in autofocus systems Jun. 23, 2009
7544919 Focus assist system and method Jun. 9, 2009
7531772 Apparatus for translational displacement of a lens in a laser focussing optical system May. 12, 2009
7528354 Method and device for position sensing of an optical component in an imaging system May. 5, 2009
7514660 Focusing apparatus, focusing method, and inspection apparatus Apr. 7, 2009
7507940 Laser underwater camera image enhancer Mar. 24, 2009
7495779 Level detection apparatus Feb. 24, 2009
7485834 Method and apparatus for estimating an in-focus position Feb. 3, 2009
7462805 Focus detection apparatus having a luminous flux deformation member Dec. 9, 2008
7433807 Facial image processing Oct. 7, 2008
7403705 Camera device having automatic focusing function Jul. 22, 2008
7394048 Focusing device, focusing method and a pattern inspecting apparatus Jul. 1, 2008
7355154 Image sensing apparatus with movable light flux splitter and control method thereof Apr. 8, 2008

1 2 3 4 5 6 7

  Recently Added Patents
Systems and methods for providing television signals using a network interface device
Analyte assaying by means of immunochromatography with lateral migration
Termite tubing preventative for non-wood materials
Secure mobile ad hoc network
Method for facilitating assessment of a coursework answer and moderating the assessment
Pelvic registration device for medical navigation
Digital rights management for media streams
  Randomly Featured Patents
Methods, systems, and computer program products for voice over IP (VoIP) traffic engineering and path resilience using media gateway and associated next-hop routers
Cesium and lithium-containing quaternary compound scintillators
Rare earth metal silicide alloys
Projection optical system
Decorative article assembly
Method of copper plating gravure cylinders
Block splitting assembly and method
Self-steering mechanism
Device for detecting positioning of a staple for a frame assembling machine, and method for using said device
Elimination of photo-induced electrochemical dissolution in chemical mechanical polishing