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Class Information
Number: 359/645
Name: Optical: systems and elements > Lens > Eyepiece > Having three components
Description: Subject matter wherein the lens comprises three sections (i.e., components), each containing two refractive surfaces, arranged in series along the optical axis of the lens with their optical centers in alignment thereon, their planes perpendicular to such axis, and their axially extreme refracting surfaces so spaced along the optical axis that parallel light rays upon entering and passing through all of such components are refracted to a focus no more than one time.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8531774 Eyepiece optical system having a reflective surface and electronic view finder incorporating the same Sep. 10, 2013
8503089 Ocular lens and optical apparatus including ocular lens Aug. 6, 2013
8218241 Viewing optical system and imaging apparatus using the same Jul. 10, 2012
8147095 Light source Apr. 3, 2012
8089706 Fixed-focus lens Jan. 3, 2012
8066920 Methods for controlling and enhancing the quality of base materials employed for the production of semi-finished ophthalmic lenses Nov. 29, 2011
8054555 Sighting device Nov. 8, 2011
8014074 Finder optical system and image pickup apparatus using the same Sep. 6, 2011
8000033 Photographing optical lens assembly Aug. 16, 2011
7973996 Optical system for a digital light projection system including a 3-channel LED array light engine Jul. 5, 2011
7969658 Eyepiece optical system and electronic view finder incorporating the same Jun. 28, 2011
7924507 Eyepiece lens and optical instrument comprising same Apr. 12, 2011
7903343 Zoom eyepiece lens system Mar. 8, 2011
7855837 Viewing optical system and imaging apparatus incorporating the same Dec. 21, 2010
7605983 Viewing optical system, and imaging apparatus comprising the same Oct. 20, 2009
7551377 Projection display apparatus Jun. 23, 2009
7508590 Optical system for a digital light projection system including 3-channel and 4-channel LED array light engines Mar. 24, 2009
7466490 Objective optical system for an endoscope Dec. 16, 2008
7391968 Finder optical system for a single-lens reflex camera Jun. 24, 2008
7179848 Method for coloring a transparent article made of polycarbonate and resulting article Feb. 20, 2007
7102827 Eyepiece lens Sep. 5, 2006
6980365 Diffractive lens optical design Dec. 27, 2005
6962447 Camera provided with eyepiece Nov. 8, 2005
6847494 Optical magnifier suitable for use with a microdisplay device Jan. 25, 2005
6809875 Eyepiece optical system Oct. 26, 2004
6775072 Single-focus lens Aug. 10, 2004
6692163 Single-lens reflex camera provided with eyepiece Feb. 17, 2004
6667836 High performance viewfinder eyepiece with a large diopter focus range Dec. 23, 2003
6639738 Imaging lens Oct. 28, 2003
6618205 Endoscope objective optical system Sep. 9, 2003
6606203 Ocular zoom lens Aug. 12, 2003
6552861 Optical guide fixture Apr. 22, 2003
6490102 Hybrid lens system Dec. 3, 2002
6424468 Eyepiece lens Jul. 23, 2002
6384984 Eyepiece variable focal length optics May. 7, 2002
6362923 Lens for microscopic inspection Mar. 26, 2002
6330115 Microscope eyepiece with 10.times. magnification Dec. 11, 2001
6307681 Electro-optical device, electronic equipment, and method of driving an electro-optical device Oct. 23, 2001
6263168 Eyepiece optical system for a single lens reflex camera Jul. 17, 2001
6253033 Eyepiece optical system for a single lens reflex camera Jun. 26, 2001
6181479 Eyepiece lens for a display image observation device Jan. 30, 2001
6166857 Optical guide fixture Dec. 26, 2000
6130785 Eyepiece lens system Oct. 10, 2000
6122110 Multi-stage combined optical device having multiple channels Sep. 19, 2000
6115182 Real-time optical finder system Sep. 5, 2000
6104543 Eyepiece optical system Aug. 15, 2000
6104542 Wide-angle eyepiece lens with large eye relief Aug. 15, 2000
6094310 Eyepiece system having wide visual field Jul. 25, 2000
6064530 Eyepiece system with positive meniscus lens on object side May. 16, 2000
6049435 Real image finder optical system having a relay lens system Apr. 11, 2000

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