EP1723802A1 - Multiples dispositifs d'imagerie pour visiocasques - Google Patents

Multiples dispositifs d'imagerie pour visiocasques

Info

Publication number
EP1723802A1
EP1723802A1 EP03799904A EP03799904A EP1723802A1 EP 1723802 A1 EP1723802 A1 EP 1723802A1 EP 03799904 A EP03799904 A EP 03799904A EP 03799904 A EP03799904 A EP 03799904A EP 1723802 A1 EP1723802 A1 EP 1723802A1
Authority
EP
European Patent Office
Prior art keywords
sub
light
display screen
image
display
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP03799904A
Other languages
German (de)
English (en)
Inventor
László DOMJAN
Gábor SZARVAS
Szabolcs Mike
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HEADPLAY (BARBADOS) Inc
Original Assignee
Headplay Inc Canada
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 Headplay Inc Canada filed Critical Headplay Inc Canada
Publication of EP1723802A1 publication Critical patent/EP1723802A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
    • G02B19/0066—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED in the form of an LED array
    • 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
    • G02B27/10—Beam splitting or combining systems
    • G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
    • G02B27/102—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources
    • G02B27/1026—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources for use with reflective spatial light modulators
    • G02B27/1033—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources for use with reflective spatial light modulators having a single light modulator for all colour channels
    • 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
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/143—Beam splitting or combining systems operating by reflection only using macroscopically faceted or segmented reflective surfaces
    • 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
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/144—Beam splitting or combining systems operating by reflection only using partially transparent surfaces without spectral selectivity
    • 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
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/145—Beam splitting or combining systems operating by reflection only having sequential partially reflecting surfaces
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
    • H04N13/344—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] with head-mounted left-right displays
    • 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
    • G02B2027/0132—Head-up displays characterised by optical features comprising binocular 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
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0132—Head-up displays characterised by optical features comprising binocular systems
    • G02B2027/0136—Head-up displays characterised by optical features comprising binocular systems with a single image source for both eyes

Definitions

  • the invention relates generally to visual displays and more specifically to optical arrangements for head-mounted systems that generate multiple images form a single display screen.
  • Embodiments may also generate multiple images of a single display screen by illuminating a screen with a light source, polarizing the light reflected from the display, and then alternating the polarization in one of several directions. By alternating the direction of polarization, sub-images can be redirected along different optical sub-paths by an asymmetric N-mirror.
  • embodiments of the present invention can interlace a plurality of data streams for display on the single display screen and link each data stream with one of the illumination sources.
  • FIGURE 2 is a flow diagram arranged according to an embodiment of the present invention.
  • FIGURE 1 illustrates a top view of head mounted device 100 arranged according to an embodiment of the present invention.
  • Sub-image creation section 101 within device 100, creates a plurality of sub-images from a single image source.
  • Display screen 110 can be any suitable apparatus operable to display a visual image of data using external illumination sources, such as a liquid crystal display (LCD) screen.
  • Screen 110 is situated along a display axis 111, which, in the embodiment shown, is normal to the surface of screen 110 and perpendicular to facial plane 170 of a user.
  • Display lens 115 is located along, and perpendicular to, optical path 112, and has display lens focal point 124.
  • FIGURE 3 graphically illustrates an interlacing of data streams and a linking of liglit sources according to an embodiment of the present invention.
  • Graph set 310 comprises a graphical representation of data stream 311 and data stream 312.
  • an embodiment can interlace data stream 311 and data stream 312 by alternately sending to a display, discrete time segments of each data stream. For example, during time segment 341 , a portion of data stream 311 is sent to the screen for display. During time segment 342, a portion of data stream 312 is sent to the screen for display.
  • Graph 320 shows the timing of a light source linked with data stream 311.
  • FIGURE 4 is a prospective view of a head mounted device arranged according to an embodiment of the present invention.
  • Head mounted device 400 includes section 101, as described in relation to FIGURE 1, which operates to split a display image of display 110 into a left-eye sub- image traveling along left-eye optical sub-path 140 and a right-eye sub-image traveling along right-eye optical sub-path 130.
  • left-eye transition optics 443 are placed along left-eye optical sub-path 140 to adjust a left-eye sub-image before it strikes left-eye reflector 142.
  • Left-eye reflector 142 reflects a left-eye sub-image toward left eyepiece 460.
  • Embodiments of the present invention may include aperture stop 470.
  • Aperture stop 470 allows light to pass through openings 471 and 472.
  • Openings 471, 472 may be alternatively arranged as shutters which could then be used to block propagation of light reflected form display screen 110.
  • device 400 can control whether an image is sent to either eye of a user in a manner that is easily adaptable to the stereoscopic technique of FIGURES 2 and 3.
  • transition optics 433, 443 are used to transfer the display image to diffusers 434, 444 with a magnification of approximately 1.
  • the numerical aperture of the incident real images is then increased by diffusers 434, 444.
  • 'Eyepieces 460, 461 then project real images created on diffusers 434, 444 into eyes 136, 146 as magnified virtual images.
  • Light source 570 is comprised of blue source light 571 arranged along the source light path 576, preferably in a position at or near reflective focal point 524 of display optics 115.
  • Blue source light 571 may be any light source capable of producing blue light, such as Nichia NSCxlOO series light emitting diode (LED).
  • LED Nichia NSCxlOO series light emitting diode
  • Light from blue source 571 passes through a first color filter 574 arranged at an appropriate angle to source light path 576 and selected to pass blue light and to reflect green light.
  • Green source 572 is placed adjacent to source light path 576 and arranged to reflect light off of color filter 574 in a way that simulates placing green source 572 in the same location as blue source 571.
  • the combined blue, green, and red light is polarized and reflected off of source light reflector 590, through display optics 115.
  • display optics 115 is a lens selected to have a focal point of 124 (and a reflected focal point 524).
  • the combined blue, green, and red light illuminates display 110 with a collimated beam that is slightly skewed relative to axis 111.
  • display optics 115 is a lens selected to have a focal point of 124 (and a reflected focal point 524). When passed through display optics 115, the combined blue, green, and red light illuminates display 110 with a collimated beam that is slightly skewed relative to axis 111.
  • Section 501 of device 500 further comprises a prism splitter 520 oriented about display lens focal point 124.
  • Section 501 depicts prism splitter 520 arranged with focal point 124 at its center, but the embodiments are not restricted to this arrangement. If light sources 580 and light sources 570 are arranged closer to optical path 112 than is reflected focal point 524, splitter 520 should be arranged farther away from display 110 than is focal point 124. Conversely, if light sources 580 and 570 are arranged farther from optical path 112 than is reflected focal point 524, splitter 520 should be arranged closer to display 110 than is focal point 124.
  • left-eye sub-image will follow optical sub-path 140 and be channeled to left-eye 146 of a user.
  • left-eye reflector 142 Placed along optical sub-path 140 is left-eye reflector 142, which is a fully reflective surface arranged to redirect left-eye optical sub-path 140 by
  • right-eye sub-image will follow optical sub-path 130 and be channeled to right-eye 136 of a user.
  • right- eye reflector 132 Placed along optical sub-path 130 is right- eye reflector 132, which is a fully reflective surface arranged to redirect right-eye optical sub-path 130 by 90° and into right eyepiece optics 135.
  • Right eyepiece optics 135 and left eyepiece optics 145 can be of single or multiple lenses designed to appropriately magnify a right-eye sub-image for viewing by right-eye 136 of the user and a left-eye sub-image for viewing by left-eye 146 of the user, respectively.
  • FIGURE 7 illustrates a top down view of a portion of a head mounted display arranged according to another embodiment of the present invention.
  • Device 700 includes sources 708 and 709 arranged to illuminate display screen 110 with two co-incident beams of orthogonal polarizations.
  • Source 708 propagates through a polarization beam splitter.
  • Source 709 is reflected by a polarization beam splitter.
  • display screen 110 is illuminated by collimated light from source 708 polarized in one direction, and illuminated by collimated light from source 709 polarized in a second direction.
  • Surface 790 is a partially reflective surface that has no affect on the polarization of the light from source 708, 709.
  • FIGURE 7 is easily adapted to the stereoscopic technique of FIGURES 2 and 3.
  • the data streams displayed by display screen 110 could be interlaced in a manner similar to that described above and then linked with source 708 or source 709.
  • source 708 or source 709 By alternately illuminating sources 708, 709 in time with display of interlaced data streams, different data may be transmitted to each eye of a user.
  • some display types for example, a digital light processing (DLP) or other micro mirror display
  • DLP digital light processing
  • the embodiments of the present invention can be easily adapted to off axis positions.
  • 708, 709 can be arranged in off axis positions to illuminate two coincident skewed beams of orthogonal polarization.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

L'invention concerne un visiocasque dans lequel est utilisé un seul écran d'affichage vidéo pour transporter des images aux deux yeux. De multiples réflexions sont créées par éclairage de l'écran d'affichage à partir d'une pluralité de directions, ou par éclairage de l'écran vidéo au moyen de faisceaux lumineux à différentes polarisations. Les réflexions de l'écran d'affichage sont focalisées afin de réduire le volume d'éclatement, puis réorientées par une pluralité de surfaces réfléchissantes situées près du point de focalisation des images d'affichage. Différentes images peuvent être envoyées à chaque oeil de l'utilisateur par entrelacement de multiples trains de données pour l'affichage et la liaison de chaque train de données avec une direction d'éclairage spécifique, ou une polarisation spécifique.
EP03799904A 2003-12-12 2003-12-12 Multiples dispositifs d'imagerie pour visiocasques Withdrawn EP1723802A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2003/039756 WO2005062629A1 (fr) 2003-12-12 2003-12-12 Multiples dispositifs d'imagerie pour visiocasques

Publications (1)

Publication Number Publication Date
EP1723802A1 true EP1723802A1 (fr) 2006-11-22

Family

ID=34709653

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03799904A Withdrawn EP1723802A1 (fr) 2003-12-12 2003-12-12 Multiples dispositifs d'imagerie pour visiocasques

Country Status (7)

Country Link
EP (1) EP1723802A1 (fr)
JP (1) JP2007524855A (fr)
CN (1) CN1894975A (fr)
AU (2) AU2003299615B2 (fr)
BR (1) BR0318642A (fr)
CA (1) CA2548224A1 (fr)
WO (1) WO2005062629A1 (fr)

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US7375894B2 (en) * 2006-03-07 2008-05-20 Gentex Corporation Common lens helmet mounted display
US11228753B1 (en) 2006-12-28 2022-01-18 Robert Edwin Douglas Method and apparatus for performing stereoscopic zooming on a head display unit
US11275242B1 (en) 2006-12-28 2022-03-15 Tipping Point Medical Images, Llc Method and apparatus for performing stereoscopic rotation of a volume on a head display unit
US11315307B1 (en) 2006-12-28 2022-04-26 Tipping Point Medical Images, Llc Method and apparatus for performing rotating viewpoints using a head display unit
US10795457B2 (en) 2006-12-28 2020-10-06 D3D Technologies, Inc. Interactive 3D cursor
CN102122072B (zh) * 2011-03-16 2016-04-13 北京理工大学 头戴式微投影立体视觉显示器
CA2855650C (fr) * 2011-11-15 2018-02-20 Elbit Systems Of America, Llc Systeme et procede pour defilement de multiples images provenant d'un unique projecteur
CN105223692A (zh) * 2014-05-26 2016-01-06 联想(北京)有限公司 显示装置和电子设备
WO2015184720A1 (fr) * 2014-06-07 2015-12-10 杭州立体世界科技有限公司 Structure constitutive de miroirs de visualisation gauche et droit pour un lecteur vidéo stéréoscopique portatif à haute définition utilisable à l'œil nu
CN105223693A (zh) * 2014-06-26 2016-01-06 联想(北京)有限公司 显示装置和电子设备
WO2016014560A2 (fr) * 2014-07-22 2016-01-28 Barco,Inc. Systèmes et procédés d'affichage employant des écrans réfléchissants polarisants
CN104749779B (zh) * 2014-12-24 2017-06-06 张璁 双屏头盔显示器
KR102549398B1 (ko) * 2015-01-21 2023-06-29 테세랜드 엘엘씨 시간 다중화를 이용한 시각적 디스플레이
CN104570367B (zh) * 2015-01-28 2018-12-18 深圳市安华光电技术有限公司 一种立体显示装置
CN104570356A (zh) * 2015-02-03 2015-04-29 深圳市安华光电技术有限公司 一种单图像源双目近眼显示装置
JP6533596B2 (ja) * 2015-05-29 2019-06-19 シェンジェン ロイオル テクノロジーズ カンパニー リミテッドＳｈｅｎｚｈｅｎ Ｒｏｙｏｌｅ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．， Ｌｔｄ． 自己適応ディスプレイ調整方法及びヘッドマウントディスプレイデバイス
US10261319B2 (en) * 2015-11-03 2019-04-16 Google Llc Display of binocular overlapping images in a head mounted display
CN105511095A (zh) * 2016-01-08 2016-04-20 广东未来科技有限公司 头戴式立体显示设备
CN107436489A (zh) * 2016-05-25 2017-12-05 台达电子工业股份有限公司 头戴式显示器
TWI614524B (zh) 2016-12-06 2018-02-11 台達電子工業股份有限公司 頭戴式顯示裝置
CN108828774A (zh) * 2018-07-02 2018-11-16 京东方科技集团股份有限公司 虚拟现实显示设备
TWI690732B (zh) * 2018-07-30 2020-04-11 宏達國際電子股份有限公司 頭戴式顯示器及其使用方法
US11029908B2 (en) * 2019-08-28 2021-06-08 Himax Display, Inc. Head mounted display apparatus
KR102489272B1 (ko) * 2020-07-07 2023-01-17 한국과학기술연구원 근안 디스플레이 장치
CN112346250B (zh) * 2020-10-27 2023-01-17 京东方科技集团股份有限公司 一种虚拟现实头戴式显示设备及显示方法
EP4249990A4 (fr) * 2020-11-19 2024-05-15 Sony Semiconductor Solutions Corporation Dispositif d'affichage vidéo, système d'affichage vidéo et procédé d'affichage vidéo
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EP4459360A1 (fr) * 2023-05-03 2024-11-06 BAE SYSTEMS plc Dispositif d'affichage pour un système d'affichage pouvant être monté sur un utilisateur

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Also Published As

Publication number Publication date
BR0318642A (pt) 2006-11-28
CA2548224A1 (fr) 2005-07-07
CN1894975A (zh) 2007-01-10
AU2003299615B2 (en) 2008-07-17
JP2007524855A (ja) 2007-08-30
AU2008227081A1 (en) 2008-10-23
AU2003299615A1 (en) 2005-07-14
WO2005062629A1 (fr) 2005-07-07

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