Angle sweeping holographic illuminator

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7845841
APP PUB NO 20080049450A1
SERIAL NO

11467879

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Light guides of various shapes are configured to adjust the angle of the individual light rays in a bundle of light within the light guide so that the angle of the respective rays are adjusted towards an acceptance angle of a hologram embedded within the light guide. The hologram embedded in the light guide is configured to eject individual rays towards the display elements when the respective rays are within a range of acceptance angles.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SNAPTRACK, INC.SAN JOSE, CA1427

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sampsell, Jeffrey B San Jose, US 165 15324

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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HONEYWELL INTERNATIONAL INC. (2)
6538813 Display screen with metallized tapered waveguides 38 2000
2008/0079,687 LCD touchscreen panel with external optical path 22 2006
 
HONEYWELL INC. (1)
5999239 Method for making a polarization-sensitive optical element 58 1998
 
CITIZEN ELECTRONICS CO., LTD. (3)
2003/0169,385 Illumination device for a color liquid crystal display 71 2003
7357557 Light guide plate 26 2005
* 2006/0181,903 Planar light source unit 46 2006
 
ENPLAS CORPORATION (3)
* 5659410 Surface light source device and liquid crystal display 79 1994
5982540 Surface light source device with polarization function 105 1995
7357552 Surface light source device and display 22 2005
 
SANYO ELECTRIC CO., LTD. (1)
7389476 Display including a plurality of display panels 36 2003
 
KOPIN CORPORATION (2)
* 6073034 Wireless telephone display system 356 1997
* 6232937 Low power active display system 211 1997
 
VERSO BRAND HOLDINGS, LLC (2)
6951403 Device for illuminating a generally flat surface 17 2002
D475477 Device for illuminating a generally flat surface 4 2002
 
EASTMAN KODAK COMPANY (1)
4378567 Electronic imaging apparatus having means for reducing inter-pixel transmission nonuniformity 43 1981
 
BROOKHAVEN SCIENCE ASSOCIATES, LLC (1)
7025461 Interactive display system having a digital micromirror imaging device 30 2003
 
F. POSZAT HU, L.L.C. (2)
6760135 Holographic displays 37 2002
7012659 Image replication system having focusing means to receive reflected light through lightguide from spatial light modulator 29 2002
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (4)
5569565 Hologram recording material 39 1994
5892598 Head up display unit, liquid crystal display panel, and method of fabricating the liquid crystal display panel 151 1996
6072620 Output efficiency control device, projection-type display apparatus, infrared sensor, and non-contact thermometer 36 1997
2005/0231,977 Portable terminal apparatus 44 2004
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
NANO-OPTIC DEVICES, LLC (1)
8585268 Light-guide panel for display with laser backlight 0 2011
 
VELIKOV, LEONID, MR. (1)
8596846 Frontlight unit for enhancing illumination of a reflective display 2 2012
 
SNAPTRACK, INC. (19)
9019183 Optical loss structure integrated in an illumination apparatus 0 2007
8872085 Display device having front illuminator with turning features 1 2007
8068710 Decoupled holographic film and diffuser 9 2007
8111445 Spatial light modulator with integrated optical compensation structure 12 2008
9025235 Optical interference type of color display having optical diffusion layer between substrate and electrode 0 2008
8045252 Spatial light modulator with integrated optical compensation structure 10 2008
8111446 Optical films for controlling angular characteristics of displays 9 2008
8040589 Devices and methods for enhancing brightness of displays using angle conversion layers 2 2009
* 2009/0201,565 DEVICES AND METHODS FOR ENHANCING BRIGHTNESS OF DISPLAYS USING ANGLE CONVERSION LAYERS 35 2009
8061882 Illumination device with built-in light coupler 6 2009
8368981 Display device with diffractive optics 2 2009
8049951 Light with bi-directional propagation 2 2009
* 2009/0257,108 LIGHT WITH BI-DIRECTIONAL PROPAGATION 26 2009
8045256 Method and device for compensating for color shift as a function of angle of view 6 2009
8169688 System and method of reducing color shift in a display 2 2010
8902484 Holographic brightness enhancement film 0 2010
8861071 Method and device for compensating for color shift as a function of angle of view 0 2011
8798425 Decoupled holographic film and diffuser 2 2011
9019590 Spatial light modulator with integrated optical compensation structure 0 2011
 
LUMINIT LLC (1)
* 2012/0188,791 SUBSTRATE-GUIDED HOLOGRAPHIC DIFFUSER 11 2011
 
YANKOV, VLADIMIR (1)
9164219 Frontlight unit for reflective displays 0 2011
* Cited By Examiner

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