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Class Information
Number: 359/436
Name: Optical: systems and elements > Scale or indicia reading
Description: Subject matter including optical structure for facilitating the reading of a scale, with or without a pointer or indicator, having spaced lines or other indicia thereon; or for facilitating reading a vernier type indicator where lines from two different scales are matched.

Sub-classes under this class:

Class Number Class Name Patents
359/440 Lens 45
359/439 Mirror 13
359/437 Polarizer 19
359/438 Prism 23

Patents under this class:

Patent Number Title Of Patent Date Issued
8258459 Optical encoder and motor system comprising dual decentered annular slits Sep. 4, 2012
8242434 Optoelectronic angle sensor for determining a rotational angle about an axis and including a code carrier having a planar self-luminous coding Aug. 14, 2012
7793842 Device and method for reading bar codes on an object Sep. 14, 2010
7719075 Scanning head for optical position-measuring systems May. 18, 2010
7714272 Optical absolute rotary encoder May. 11, 2010
7638755 Sensing absolute position of an encoded object Dec. 29, 2009
7535635 Transparent meter register cover with integral light pipe May. 19, 2009
7375621 Vehicle parking apparatus May. 20, 2008
6961174 Reflectometer and method for manufacturing a reflectometer Nov. 1, 2005
6809859 Optical filter and fluorescence spectroscopy system incorporating the same Oct. 26, 2004
6671092 Reflective measuring scale graduation and method for its manufacture Dec. 30, 2003
6552861 Optical guide fixture Apr. 22, 2003
6366401 Clear container with magnifying feature Apr. 2, 2002
6359742 Weldable sightglass assembly Mar. 19, 2002
6263166 Exposure count indicator for camera Jul. 17, 2001
6262839 Optical unit for image projection and tool incorporating same Jul. 17, 2001
6259864 Exposure count indicator for camera Jul. 10, 2001
6191899 Emergency visual assistance device Feb. 20, 2001
6166857 Optical guide fixture Dec. 26, 2000
6141147 Optical unit for image projection and tool incorporating same Oct. 31, 2000
5880882 Scale and method for making a scale Mar. 9, 1999
5754348 Method for context-preserving magnification of digital image regions May. 19, 1998
5742577 Prism has a plurality of reflective regions each with a predetermined phase difference Apr. 21, 1998
5737122 Illumination system for OCR of indicia on a substrate Apr. 7, 1998
5731766 Route guide system and method Mar. 24, 1998
5485012 Method and apparatus for blind optical augmentation Jan. 16, 1996
5469294 Illumination system for OCR of indicia on a substrate Nov. 21, 1995
5390625 Driver's overhead indicator for automobile Feb. 21, 1995
5251038 Solid state imager with a condenser lens on a photo sensor Oct. 5, 1993
5231536 Robust, LED illumination system for OCR of indicia on a substrate Jul. 27, 1993
5221999 Automotive display apparatus Jun. 22, 1993
5204775 Device for magnifying indicia printed on a container Apr. 20, 1993
5193032 Universal prescription bottle instruction label magnifier Mar. 9, 1993
5023451 Indicia contrast enhancement for vehicle borne infrared vision system Jun. 11, 1991
4966429 Optical scale reading apparatus Oct. 30, 1990
4643523 Telescoping water meter reading apparatus Feb. 17, 1987
4261204 Conduit for guiding fiber optic viewing device Apr. 14, 1981
4247169 Lens barrel capable of axial zooming operation and with barrel window Jan. 27, 1981
4208102 Enlargement lens mount Jun. 17, 1980
4124865 Automatic reticle detection and tracking method and system Nov. 7, 1978
4032222 Controlled reflection readout for digital displays Jun. 28, 1977
4027942 Micrometer microscope with binocular viewing Jun. 7, 1977
3950775 Information displaying apparatus for a camera Apr. 13, 1976
3950072 Instrument panel reflecting apparatus Apr. 13, 1976

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