WO2005124427B1 - High brightness optical device - Google Patents

High brightness optical device

Info

Publication number
WO2005124427B1
WO2005124427B1 PCT/IL2005/000636 IL2005000636W WO2005124427B1 WO 2005124427 B1 WO2005124427 B1 WO 2005124427B1 IL 2005000636 W IL2005000636 W IL 2005000636W WO 2005124427 B1 WO2005124427 B1 WO 2005124427B1
Authority
WO
WIPO (PCT)
Prior art keywords
optical device
light
source
module
diffusing
Prior art date
Application number
PCT/IL2005/000636
Other languages
French (fr)
Other versions
WO2005124427A1 (en
Inventor
Yaakov Amitai
Jonathan Gelberg
Original Assignee
Lumus Ltd
Yaakov Amitai
Jonathan Gelberg
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 Lumus Ltd, Yaakov Amitai, Jonathan Gelberg filed Critical Lumus Ltd
Priority to US11/570,582 priority Critical patent/US8098439B2/en
Priority to EP05750252A priority patent/EP1756647A1/en
Publication of WO2005124427A1 publication Critical patent/WO2005124427A1/en
Publication of WO2005124427B1 publication Critical patent/WO2005124427B1/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
    • G02B27/0081—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for altering, e.g. enlarging, the entrance or exit pupil
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/22—Telecentric objectives or lens systems
    • 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
    • G02B27/0172—Head mounted characterised by optical features
    • 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
    • G02B2027/0118—Head-up displays characterised by optical features comprising devices for improving the contrast of the display / brillance control visibility
    • 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
    • G02B27/0172—Head mounted characterised by optical features
    • G02B2027/0174—Head mounted characterised by optical features holographic

Abstract

There is provided an optical device, composed of a display source (4), an imaging optical module (8), a projection module (12) having a projection mechanism including an input aperture (10) and output aperture (14) defined by a surface area, and an exit pupil (16). The projection mechanism is non-uniform over the area of the output aperture (14).

Claims

22AMENDED CLAIMS[Received by the International Bureau on 22 December 2005 (22.12.2005) ; original claim 1, amended; remaining claims unchanged]WHAT IS CLAIMED IS:
1. An optical device, comprising: a display source; an exit pupil; an imaging optical module, and a projection module having a projection mechanism, including an input aperture and an output aperture defined by a surface area to project light from said imaging optical module to said exit pupil, characterized in that said projection mechanism is non-uniform over the area of said output aperture and that said imaging optical module has directionality of the display illumination source for coupling light from said source into the input aperture of said projection mechanism.
2. The optical device according to claim I- further comprising a light diffusing mechanism, for diffusing light illuminating said input aperture,
3. The optical device according to claim 2, wherein the light emerging from said display source is concentrated inside a finite solid angle.
4. The optical device according to claim 2, wherein said display source is an LCD.
5. The optical device according to claim 4, wherein said light-diffusing mechanism is an angular selective diffuser for said LCD.
6. The optical device according to claim 5, wherein said angular selective diffuser is a holographic diffuser.
7. The optical device according to claim 4, further comprising a light source and a converging lens located between the light source and said light diffusing mechanism.
8. The optical device according to claim 2, wherein said light-diffusing mechanism is an array of micro-lenses that is aligned with the pixels of said display source.
9. The optical device according to claim 1, wherein said display source is an OLED.
10. The optical device according to claim 9, wherein the emitting distribution function of the pixels in the said OLED are designed to make each pixel diverge into a predefined angle.
11. The optical device according to claim 1, wherein said imaging optical module is a telecentric system.
PCT/IL2005/000636 2004-06-17 2005-06-16 High brightness optical device WO2005124427A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US11/570,582 US8098439B2 (en) 2004-06-17 2005-06-16 High brightness optical device
EP05750252A EP1756647A1 (en) 2004-06-17 2005-06-16 High brightness optical device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL162572 2004-06-17
IL162572A IL162572A (en) 2004-06-17 2004-06-17 High brightness optical device

Publications (2)

Publication Number Publication Date
WO2005124427A1 WO2005124427A1 (en) 2005-12-29
WO2005124427B1 true WO2005124427B1 (en) 2006-02-02

Family

ID=34972185

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2005/000636 WO2005124427A1 (en) 2004-06-17 2005-06-16 High brightness optical device

Country Status (4)

Country Link
US (1) US8098439B2 (en)
EP (1) EP1756647A1 (en)
IL (1) IL162572A (en)
WO (1) WO2005124427A1 (en)

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US20090279180A1 (en) 2009-11-12
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