WO2001092947A3 - Condenser optics for microdisplay based video projection applications - Google Patents

Condenser optics for microdisplay based video projection applications Download PDF

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Publication number
WO2001092947A3
WO2001092947A3 PCT/US2001/016205 US0116205W WO0192947A3 WO 2001092947 A3 WO2001092947 A3 WO 2001092947A3 US 0116205 W US0116205 W US 0116205W WO 0192947 A3 WO0192947 A3 WO 0192947A3
Authority
WO
WIPO (PCT)
Prior art keywords
video projection
based video
condenser optics
projection applications
microdisplay based
Prior art date
Application number
PCT/US2001/016205
Other languages
French (fr)
Other versions
WO2001092947A2 (en
Inventor
Edmund Sandberg
Richard Flasck
Original Assignee
Digital Reflection Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Digital Reflection Inc filed Critical Digital Reflection Inc
Priority to AU2001263291A priority Critical patent/AU2001263291A1/en
Publication of WO2001092947A2 publication Critical patent/WO2001092947A2/en
Publication of WO2001092947A3 publication Critical patent/WO2001092947A3/en

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
    • G03B21/62—Translucent screens
    • G03B21/625—Lenticular translucent screens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Projection Apparatus (AREA)

Abstract

Method and system for providing condensers (150) for use in a video projection system which are physical compact, has high collection efficiency and is configured to spatially homogenize the light beam is provided. Additionally, the condensers are (100, 150) configured to output a light beam with the proper physical size and shape, as well as with the proper format, and further, configured to remove the unwanted ultraviolet and infrared light, while being physically rugged, and inexpensive and easy to manufacture in high volume.
PCT/US2001/016205 2000-06-01 2001-05-18 Condenser optics for microdisplay based video projection applications WO2001092947A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001263291A AU2001263291A1 (en) 2000-06-01 2001-05-18 Condenser optics for microdisplay based video projection applications

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US60/208,603 2000-05-05
US20860300P 2000-06-01 2000-06-01

Publications (2)

Publication Number Publication Date
WO2001092947A2 WO2001092947A2 (en) 2001-12-06
WO2001092947A3 true WO2001092947A3 (en) 2002-12-05

Family

ID=22775216

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/016205 WO2001092947A2 (en) 2000-06-01 2001-05-18 Condenser optics for microdisplay based video projection applications

Country Status (2)

Country Link
AU (1) AU2001263291A1 (en)
WO (1) WO2001092947A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2803697A1 (en) * 1977-02-24 1978-08-31 Nagema Veb K DEVICE FOR LIGHTING
GB2099177A (en) * 1981-05-14 1982-12-01 Fuji Xerox Co Ltd Optical projection system for a copying machine
DE19502660A1 (en) * 1994-10-05 1996-04-11 Wolf Henning Optical projector for video image processing system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2803697A1 (en) * 1977-02-24 1978-08-31 Nagema Veb K DEVICE FOR LIGHTING
GB2099177A (en) * 1981-05-14 1982-12-01 Fuji Xerox Co Ltd Optical projection system for a copying machine
DE19502660A1 (en) * 1994-10-05 1996-04-11 Wolf Henning Optical projector for video image processing system

Also Published As

Publication number Publication date
AU2001263291A1 (en) 2001-12-11
WO2001092947A2 (en) 2001-12-06

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