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Browse by Category: Main > Optical & Optics
Class Information
Number: 356/5.1
Name: Optics: measuring and testing > Range or remote distance finding > With photodetection > Of cw phase delay
Description: Subject matter that incorporates a continuous wave (CW) of modulated or unmodulated optical signal that is transmitted to and reflected from a target, such that the relative phase position of the returned wave is compared to the phase of the transmitted wave in order to determine the distance-proportional transit time to and from the target.


Sub-classes under this class:

Class Number Class Name Patents
356/5.13 Having an alternating reference path 25
356/5.11 Having multiple carrier or modulation frequencies 43
356/5.14 Having polarization discrimination 17
356/5.15 Having specific if mixing of returns 91


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
6844923 Method and apparatus for surveying the geometry of tunnels Jan. 18, 2005
6822732 Surveying instrument having an auto-collimating function and a distance measuring function Nov. 23, 2004
6801305 Device for optically measuring distances Oct. 5, 2004
6781675 Electro-optical para-axial distance measuring system Aug. 24, 2004
6757054 Time measurement apparatus, distance measurement apparatus, and clock signal generating apparatus usable therein Jun. 29, 2004
6753950 Optical distance measurement Jun. 22, 2004
6750960 Optical distance measurement device and method thereof Jun. 15, 2004
6747733 Electronic distance meter Jun. 8, 2004
6738130 Ultra-light helmet-mounted laser range finder May. 18, 2004
6717655 Micropulse lidar system Apr. 6, 2004
6714285 Optical rangefinder Mar. 30, 2004
6707054 Scannerless range imaging system having high dynamic range Mar. 16, 2004
6704097 Optoelectronic distance measuring device and operating method determined therefor Mar. 9, 2004
6693703 Distance measuring device and method for adjusting photodetection unit of distance measuring device Feb. 17, 2004
6657704 Distance measurement apparatus Dec. 2, 2003
6636300 Spatially resolving range-finding system Oct. 21, 2003
6618126 Surveying instrument having a sighting telescope and a phase-difference detection type focus detection device therefor Sep. 9, 2003
6587186 CMOS-compatible three-dimensional image sensing using reduced peak energy Jul. 1, 2003
6586748 Non-invasive water current measurement system and method Jul. 1, 2003
6584283 LED illumination device for a scannerless range imaging system Jun. 24, 2003
6580495 Surveying instrument having a phase-difference detection type focus detecting device and a beam-splitting optical system Jun. 17, 2003
6580496 Systems for CMOS-compatible three-dimensional image sensing using quantum efficiency modulation Jun. 17, 2003
6570646 Optical distance measurement device and method thereof May. 27, 2003
6559933 Method and apparatus for detecting a terrain-masked helicopter May. 6, 2003
6542225 Surveying machine automatically adjusting optical axis Apr. 1, 2003
6515740 Methods for CMOS-compatible three-dimensional image sensing using quantum efficiency modulation Feb. 4, 2003
6512575 Method and a device for measuring the distance of an object Jan. 28, 2003
6507706 Color scannerless range imaging system using an electromechanical grating Jan. 14, 2003
6504602 Tacheometer telescope Jan. 7, 2003
6501540 Surveying instrument having an optical distance meter Dec. 31, 2002
6501541 Electronic distance meter Dec. 31, 2002
6483595 Three dimensional optical scanner Nov. 19, 2002
6480265 Active target distance measurement Nov. 12, 2002
6480266 Autofocus distance-measuring optical system Nov. 12, 2002
6469777 Surveying instrument having an optical distance meter Oct. 22, 2002
6456793 Method and apparatus for a color scannerless range imaging system Sep. 24, 2002
6441887 Measuring method and device Aug. 27, 2002
6410930 Method and apparatus for aligning a color scannerless range imaging system Jun. 25, 2002
6411371 Device for optical distance measurement Jun. 25, 2002
6396571 Portable type distance measuring apparatus May. 28, 2002
6384903 Range gated remote measurement utilizing two-photon absorption May. 7, 2002
6373559 Optoelectronic mixer Apr. 16, 2002
6356344 Mixing apparatus and optical rangefinder using the same Mar. 12, 2002
6349174 Method and apparatus for a color scannerless range imaging system Feb. 19, 2002
6335789 Optical radar system Jan. 1, 2002
6288776 Method for unambiguous range estimation Sep. 11, 2001
6262800 Dual mode semi-active laser/laser radar seeker Jul. 17, 2001
6233045 Self-mixing sensor apparatus and method May. 15, 2001
6226077 Self-calibrating precision timing circuit and method for a laser range finder May. 1, 2001
6163372 Fiber optic laser detection and ranging system Dec. 19, 2000

1 2 3 4


 
 
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