WO2005091047A3 - Device for fast modulating a slowly operated light source - Google Patents

Device for fast modulating a slowly operated light source Download PDF

Info

Publication number
WO2005091047A3
WO2005091047A3 PCT/IL2005/000291 IL2005000291W WO2005091047A3 WO 2005091047 A3 WO2005091047 A3 WO 2005091047A3 IL 2005000291 W IL2005000291 W IL 2005000291W WO 2005091047 A3 WO2005091047 A3 WO 2005091047A3
Authority
WO
WIPO (PCT)
Prior art keywords
light source
slowly operated
operated light
high frequency
slowly
Prior art date
Application number
PCT/IL2005/000291
Other languages
French (fr)
Other versions
WO2005091047A2 (en
Inventor
Mordekhai Velger
Jephtah Lorch
Original Assignee
Elop Electrooptics Ind Ltd
Flixel Ltd
Mordekhai Velger
Jephtah Lorch
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 Elop Electrooptics Ind Ltd, Flixel Ltd, Mordekhai Velger, Jephtah Lorch filed Critical Elop Electrooptics Ind Ltd
Publication of WO2005091047A2 publication Critical patent/WO2005091047A2/en
Publication of WO2005091047A3 publication Critical patent/WO2005091047A3/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3155—Modulator illumination systems for controlling the light source
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0138—Head-up displays characterised by optical features comprising image capture systems, e.g. camera

Abstract

Device for producing high frequency modulated light, the device including at least one slowly operated light source being characterized by a maximal operation rate, and at least one micro shutter being located in an optical path to the slowly operated light source, the micro shutter being operative to modulate light passing there through, by alternately moving to an open state and a closed state, at a shutter modulation rate which is greater than the maximal operation rate, thereby producing the high frequency modulated light.
PCT/IL2005/000291 2004-03-22 2005-03-15 Device for fast modulating a slowly operated light source WO2005091047A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US55518104P 2004-03-22 2004-03-22
US60/555,181 2004-03-22

Publications (2)

Publication Number Publication Date
WO2005091047A2 WO2005091047A2 (en) 2005-09-29
WO2005091047A3 true WO2005091047A3 (en) 2005-10-27

Family

ID=34965882

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2005/000291 WO2005091047A2 (en) 2004-03-22 2005-03-15 Device for fast modulating a slowly operated light source

Country Status (1)

Country Link
WO (1) WO2005091047A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5050001A (en) * 1989-07-07 1991-09-17 Fuji Photo Film Co., Ltd. Printing system with liquid crystal shutter matrix panel
GB2280967A (en) * 1993-08-14 1995-02-15 Marconi Gec Ltd Display arrangements
US20030122732A1 (en) * 2002-01-02 2003-07-03 Shaw Jeff A. Head mounted display
WO2003069593A2 (en) * 2002-02-09 2003-08-21 Display Science, Inc. Flexible video displays and their manufacture

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5050001A (en) * 1989-07-07 1991-09-17 Fuji Photo Film Co., Ltd. Printing system with liquid crystal shutter matrix panel
GB2280967A (en) * 1993-08-14 1995-02-15 Marconi Gec Ltd Display arrangements
US20030122732A1 (en) * 2002-01-02 2003-07-03 Shaw Jeff A. Head mounted display
WO2003069593A2 (en) * 2002-02-09 2003-08-21 Display Science, Inc. Flexible video displays and their manufacture

Also Published As

Publication number Publication date
WO2005091047A2 (en) 2005-09-29

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