WO2007056072B1 - Head mounted display with eye accommodation - Google Patents

Head mounted display with eye accommodation

Info

Publication number
WO2007056072B1
WO2007056072B1 PCT/US2006/042832 US2006042832W WO2007056072B1 WO 2007056072 B1 WO2007056072 B1 WO 2007056072B1 US 2006042832 W US2006042832 W US 2006042832W WO 2007056072 B1 WO2007056072 B1 WO 2007056072B1
Authority
WO
WIPO (PCT)
Prior art keywords
planar
liquid crystal
display screen
image
optical system
Prior art date
Application number
PCT/US2006/042832
Other languages
French (fr)
Other versions
WO2007056072A3 (en
WO2007056072A2 (en
Inventor
Qi Hong
Ruibo Lu
Thomas Xinzhang Wu
Shin-Tson Wu
Original Assignee
Univ Central Florida Res Found
Toppoly Optoelectronics Corp
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 Univ Central Florida Res Found, Toppoly Optoelectronics Corp filed Critical Univ Central Florida Res Found
Publication of WO2007056072A2 publication Critical patent/WO2007056072A2/en
Publication of WO2007056072A3 publication Critical patent/WO2007056072A3/en
Publication of WO2007056072B1 publication Critical patent/WO2007056072B1/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
    • 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
    • G02B3/00—Simple or compound lenses
    • G02B3/12—Fluid-filled or evacuated lenses
    • G02B3/14—Fluid-filled or evacuated lenses of variable focal length
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/50—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels
    • 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
    • G02B2027/0127—Head-up displays characterised by optical features comprising devices increasing the depth of field
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/29—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/29—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
    • G02F1/294—Variable focal length devices

Abstract

A light-weight, headmounted display includes a display screen (201), a black mask (202), a tunable liquid crystal micro-lens array (203), and a bias lens (204). The tunable liquid crystal microlens array enables three-dimensional display by altering the micro-lens focal distance.

Claims

AMENDED CLAIMS received by the International Bureau on 23 November 2007 (23.11.07)
1. Λn image producing optical system for a head mounted stereoscopic visual display device for producing a 3 -dimensional visual image seen by a viewer, for each of a left and right eye the image producing optical system comprising: a planar display screen for displaying an image to provide a spatially distinct image to each of the left and right eye; a planar tunable focus liquid crystal micro-lens array having plural liquid crystal micro-lenses aligned with display pixels of the planar display screen, wherein the plural liquid crystal micro-lens alternates a diopter of the display pixels; a first planar black mask having apertures aligned with the plural liquid crystal micro- lenses located adjacent to the planar tunable focus liquid crystal micro-lens array to prevent light from passing through the intervals between the plural liquid crystal micro-lenses of the tunable focus liquid crystal micro-lens array; and a bias lens located adjacent to the an eye of the viewer, wherein the bias lens converges light from the display pixels into a pupil of the eye so that all portions of the displayed image are visible even though the field of view is large and the viewer moves the aye.
2. The image producing optical system of claim 1, wherein planar tunable 'focus liquid crystal micro-lens array is located between the planar display screen and the bias lens.
3. The image producing optical system in claim 1, wherein the first planar black mask is located between the planar display screen and the planar tunable focus liquid crystal micro- lens array.
4, The image producing optical system of claim 1, wherein the first planar black mask js located between the planar tunable focus liquid crystal micro-lens array and the bias lens.
5, The image producing optical system of claim 1, further comprising: a second planar black mask, wherein the first planar black mask is located between the planar display screen and the planar tunable focus liquid crystal micro-lens array and the second planar black mask is located between the planar tunable focus liquid crystal micro- lens array and the bias lens.
6. The image producing optical system of claim 1 , wherein the planar display screen comprises: a planar emissive liquid crystal display screen.
7, The image producing optical system of claim 1 , wherein the planar display screen comprises; a planar transmissive liquid crystal display screen.
8. The image producing optical system of claim 1, wherein the planar display screen comprises: a planar reflective liquid crystal display screen,
9. The image producing optical system of claim 1 , wherein the planar display screen comprises: a planar reflective display screen.
10. The image producing optical system of claim 9, further comprising: an image projector for producing and. projecting the image on the planar reflective display screen, wherein the planar tunable focυs liquid crystal micro-fens array and adjacent first planar black mask are located between the planar reflective display screen and the bias lens.
11. The image producing optical system of claim 9, further comprising: an image projector for producing and projecting the image displayed on the planar reflective display screen, wherein the planar tunable focus liquid crystal micro-lens array and adjacent first planar black mask arc located between the planar reflective display screen and the image projector.
12. Λ image producing optical system of claim 1 , wherein the bias lens comprises: a bias micro-lens array having plural bias micro-lenses located adjacent to the eye of the viewer for converging the light from the display pixel passing through the tunable focus liquid crystal mtero-lcns arcay, producing a retinal image corresponding to the display pixel.
13. The image producing optical system of claim 12, wherein flic first planar black mask is located between the planar display screen and the planar tunable focus liquid crystal micro- lens array.
14. Tl ie image producing optical system of claim 12, wherein the first planar black mask is located between the planar tunable focus liquid crystal micro-lens array the bias micro-lens array.
15. The imago producing optical system of claim 12, further comprising: a second planar black mask, wherein the first planar black mask is located between the planar display screen and the planar tunable focus liquid crystal micro-Jens array and the second planar black mask is located between the planar tunable focus liquid crystal micro- lens array and the 2bias micro-lens array,
16. The image producing optical system of claim 12, wherein the planar display screen comprises; a planar emissive liquid crystal display screen.
17. The image producing optical system of claim 12, wherein the planar display screen comprises: a planar transmissive liquid crystal display screen.
18. The image producing optical system of claim 12, wherein the planar display screen comprises: a planar reflective liquid crystal display screen.
19. The image producing optical system of claim 12, wherein the planar display screen comprises; a planar reflective display screen.
20. The imago producing optical system of claim 19, further comprising: an image projector for producing and projecting the image displayed on tho planar reflective display screen, wherein planar tunable focus liquid crystal micro-lens array and adjacent first planar black mask are located between the planar reflective display screen and the bias micro-lens array.
21. The image producing optical system of claim 19, further comprising: an image projector for producing and projecting the image displayed on the planar rdleclivc liquid crystal display screen wherein planar tunable focus liquid crystal micro-lens array and adjacent first planar black mask are located between the planar reflective display screen and the image projector.
22. A stereoscopic visual display system for producing a 3-diniensioπaI visual image for a viewer, the visual display system having an image producing optical system for each of a left and right eye comprising: a curved display screen for displaying a different spatially distinct images to each of the left and right eye; a curved tunable focus liquid crystal micro-lens array having plural liquid crystal micro-lenses aligned will) display pixels of the curved display screen, wherein the curved tunable focus liquid crystal micro-lens array alternates a diopter of the display pixels; and a first curved black mask having plural apertures aligned with the plural liquid crystal micro-lenses to prevent light From passing through the intervals between the plural liquid crystal micro-lenses of the tunable focus liquid crystal micro-Icns array.
21 The image producing optical system of claim 22, wherein the first curved black mask is located between the curved display screen and the curved tunable focus liquid crystal micro -lens array,
24. The image producing optical system of claim 22, wherein the first curved black mask is located between the curved tunable focus liquid crystal micro-lens array the viewer.
25. The image producing optical system of claim 22, further comprising: a second curved black mask, wherein the curved black mask is located between the curved display screen and the curved tunable focus liquid crystal micro-lens array and the second curved black mask is located between the curved tunable focus liquid crystal micro- lens array and the viewer.
26. The image producing optical system of claim 22, wherein the curved display screen comprises: a curved emissive liquid crystal display screen.
27, The imago producing optical system of claim 22, wherein the curved display screen comprises; a cxirved transmissive liquid crystal display screen.
28. The image producing optical system o f claim 22, wherein the curved display screen comprises: a curved reflective liquid crystal display screen,
29. The image producing optical system of claim 22, wherein the curved display screen comprises: a curved reflective display screen,
30, The image producing optica] system of claim 29, further comprising; an image projector for producing and projecting the image displayed on the curved reflective liquid crystal display screen, wherein curved tunable focus liquid crystal micro- Ions array and adjacent first curved black mask are located between the curved reflective display screen and an eye of the viewer.
31 , The image producing optical system of claim 29, further comprising: an image projector for producing and projecting the image displayed on the curved reflective liquid crystal display screen, wherein curved tunable focus liquid crystal micro-lens array and adjacent first curved black mask are located between the curved reflective liquid crystal display screen and the image projector.
PCT/US2006/042832 2005-11-03 2006-11-02 Head mounted display with eye accommodation WO2007056072A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/266,612 US7486341B2 (en) 2005-11-03 2005-11-03 Head mounted display with eye accommodation having 3-D image producing system consisting of, for each eye, one single planar display screen, one single planar tunable focus LC micro-lens array, one single planar black mask and bias lens
US11/266,612 2005-11-03

Publications (3)

Publication Number Publication Date
WO2007056072A2 WO2007056072A2 (en) 2007-05-18
WO2007056072A3 WO2007056072A3 (en) 2007-11-15
WO2007056072B1 true WO2007056072B1 (en) 2008-01-10

Family

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Family Applications (1)

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PCT/US2006/042832 WO2007056072A2 (en) 2005-11-03 2006-11-02 Head mounted display with eye accommodation

Country Status (2)

Country Link
US (2) US7486341B2 (en)
WO (1) WO2007056072A2 (en)

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US20070097277A1 (en) 2007-05-03
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US7667783B2 (en) 2010-02-23
US20080049152A1 (en) 2008-02-28
WO2007056072A2 (en) 2007-05-18

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