US Patent No: 7,012,659

Number of patents in Portfolio can not be more than 2000

Image replication system having focusing means to receive reflected light through lightguide from spatial light modulator

ALSO PUBLISHED AS: 20040184287
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Abstract

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The present invention relates, in one aspect to an image replication system comprising a light guide (2), a light source (8) arranged to direct emitted light into the first end (2a) of a light guide (2), a reflective spatial light modulator (6) and focussing means (16). In a preferred embodiment, the light guide (2) is in the form of an elongate glass rod having first and second parallel polygonal end faces (2a, 2b) which are parallel to the long axis of the rod, the rod having a uniform polygonal cross section along its length. The spatial light modulator (6) is optically coupled to the second end face (2b) of the light guide (2) and the focussing means (16) is arranged to receive light reflected back through the rod from the spatial light modulator (6), whereby to form multiple images of said spatial light modulator in an image plane (18).

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Patent Owner(s)

Patent OwnerAddressTotal Patents
F. POSZAT HU, LLCWILMINGTON, DE39

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Miller, Richard Jonathan Malvern, GB 15 35
Smith, Mark Anthony Gleeson Malvern Worcestershire, GB 10 31
Stanley, Maurice Malvern, GB 22 75

Cited Art Landscape

Patent Info (Count) # Cites Year
 
F. POSZAT HU, LLC (1)
* 6,753,990 Holographic displays 14 2002
 
GEC-MARCONI LIMITED, THE GROVE, (1)
* 5,164,848 Helmet mounted display 68 1990
 
HUGHES ELECTRONICS CORPORATION (1)
* 5,353,150 Gain homogenization apparatus and method for use in stimulated scattering of beams with non-uniform spatial intensity distribution 7 1992
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
5,621,486 Efficient optical system for a high resolution projection display employing reflection light valves 64 1995
 
MIYAKAWA CORPORATION (1)
5,485,291 Uniformly thin, high efficiency large area lighting panel with two facet grooves that are spaced apart and have light source facing facets with smaller slopes than the facets facing away from the light source 131 1994
 
TEXAS INSTRUMENTS INCORPORATED (1)
5,680,257 Light collection optics for spatial light modulator 24 1995
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
QUALCOMM MEMS TECHNOLOGIES, INC. (23)
7,813,026 System and method of reducing color shift in a display 17 2005
7,710,636 Systems and methods using interferometric optical modulators and diffusers 24 2005
7,845,841 Angle sweeping holographic illuminator 16 2006
7,864,395 Light guide including optical scattering elements and a method of manufacture 21 2006
7,777,954 Systems and methods of providing a light guiding layer 22 2007
8,872,085 Display device having front illuminator with turning features 0 2007
8,068,710 Decoupled holographic film and diffuser 3 2007
8,111,445 Spatial light modulator with integrated optical compensation structure 8 2008
8,045,252 Spatial light modulator with integrated optical compensation structure 8 2008
7,948,672 System and methods for tiling display panels 0 2008
8,344,377 Display element having filter material diffused in a substrate of the display element 2 2008
* 8,111,446 Optical films for controlling angular characteristics of displays 6 2008
8,300,304 Integrated front light diffuser for reflective displays 2 2009
8,040,589 Devices and methods for enhancing brightness of displays using angle conversion layers 1 2009
8,061,882 Illumination device with built-in light coupler 2 2009
8,368,981 Display device with diffractive optics 2 2009
8,049,951 Light with bi-directional propagation 1 2009
7,933,475 Method and apparatus for providing back-lighting in a display device 11 2009
8,045,256 Method and device for compensating for color shift as a function of angle of view 4 2009
8,848,294 Method and structure capable of changing color saturation 0 2010
8,902,484 Holographic brightness enhancement film 0 2010
8,861,071 Method and device for compensating for color shift as a function of angle of view 0 2011
8,798,425 Decoupled holographic film and diffuser 0 2011
 
F. POSZAT HU, LLC (2)
RE43841 Printing by active tiling 0 2001
RE44301 Image replication system having focusing means to receive reflected light through lightguide from spatial light modulator 0 2002
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (1)
8,174,769 Beamsplitters with offset compensation 0 2008
* Cited By Examiner

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