WO2005062629A1 - Multiple imaging arrangements for head mounted displays - Google Patents
Multiple imaging arrangements for head mounted displays Download PDFInfo
- Publication number
- WO2005062629A1 WO2005062629A1 PCT/US2003/039756 US0339756W WO2005062629A1 WO 2005062629 A1 WO2005062629 A1 WO 2005062629A1 US 0339756 W US0339756 W US 0339756W WO 2005062629 A1 WO2005062629 A1 WO 2005062629A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sub
- light
- display screen
- image
- display
- Prior art date
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.
- Head-Mounted Displays are a class of image display devices that can be used to display images from television, digital versatile discs, computer applications, game consoles, or other similar applications.
- a HMD can be monocular (a single image viewed by one eye), biocular (a single image viewed by both eyes), or binocular (a different image viewed by each eye). Further, the image projected to the eye(s) may be viewed by the user as complete, or as superimposed on the user's view of the outside world.
- HMDs For most HMDs, designs must account for parameters such as image resolution, the distance of the virtual image from the eye, the size of the virtual image (or the angle of the virtual image), the distortions of the virtual image, the distance between the left and the right pupil of the user (inter pupillar distance (IPD)), diopter correction, loss of light from image splitting and transmission, power consumption, weight, and price.
- IPD inter pupillar distance
- diopter correction loss of light from image splitting and transmission
- power consumption weight, and price.
- a single HMD would account for these parameters over a variety of users and be able to display an image regardless of whether it was a stereoscopic binocular image or a simple monoscopic binocular image.
- an acceptable size for the virtual image produced by the HMD's optics is a virtual image diameter of approximately 1.5m (52"-56") at 2m distance which corresponds to approximately a 36° angle of view.
- the IPD should be variable between 45mm and 75mm. In order to compensate for near- and farsightedness, at least a ⁇ 3 diopter correction is necessary.
- Embodiments of the present invention can generate independent multiple images of a single display screen that are focused by a lens and then directed along separate optical sub-paths by a splitter located near the focal point of the generated images, hi one embodiment, a single display screen is illuminated from different directions producing multiple images of the screen that are then focused by the lens. The images are then split, in the reduced splitting volume created by the lens, into a plurality of sub-images that are transmitted to separate eyes of a user.
- These embodiments may utilize a symmetrical N-mirror splitter composed of two partially or fully reflective surfaces arranged around the focal point of the lens. The images are then reflected by the partially or fully reflective surfaces along separate optical sub-paths leading to the individual eyes of the users.
- Other embodiments can generate multiple independent images of a display screen by illuminating the screen with sources of differing polarization.
- the images produced can then be split by an asymmetric N-mirror composed of a polarizing beam splitter surface and a fully reflective surface arranged near the focal point of the lens.
- the light from each source is reflected along a different optical sub-path.
- 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.
- Some embodiments may also utilize diffusers on which images of the display screen are projected. Transition optics having a small numerical aperture may be used to project the real images onto the diffuser and eyepiece optics having a large numerical aperture can be used to transmit the images to the eyes of the user.
- 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.
- the interlaced data streams can then be displayed on the display screen while the display screen is illuminated with the linked sources.
- the screen is illuminated by a particular source only when the display screen is displaying that source's linked data stream.
- Embodiments that generate multiple images using light polarization may link each data stream with a polarization direction. When the display screen displays a data stream, the polarization direction linked to that data stream is used to send the screen image of that data stream along the appropriate sub-path.
- the plurality of illumination sources used by various embodiments of the present invention may be broad-band light sources placed near the focal point of the display lens and illuminating the display screen by shining light through the N-mirror splitter.
- Other embodiments may use a plurality of narrow-band light sources arranged to simulate a broad-band light source.
- embodiments may arrange the illumination sources adjacent to the optical axis of the system, and reflect the light from the sources using a partially-reflective surface interposed between the splitter and the display lens.
- FIGURE 1 illustrates a top view of head mounted device 100 arranged according to an embodiment of the present invention
- FIGURE 2 is a flow diagram arranged according to an embodiment of the present invention.
- FIGURE 3 graphically illustrates an interlacing of data streams and a linking of light sources according to an embodiment of the present invention
- FIGURE 4 is a prospective view of a head mounted device arranged according to an embodiment of the present invention.
- FIGURES 5 and 5 A are top down views of a head mounted device arrange according to an embodiment of the present invention.
- FIGURE 6 illustrates a top down view of a portion of a head mounted display arranged according to an embodiment of the present invention.
- FIGURE 7 illustrates a top down view of a portion of a head mounted display 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.
- Display lens focal point 124 lies on optical path 112, and section 101 is arranged such that display lens focal point 124 lies within splitter 120.
- splitter 120 is a symmetric V-mirror composed of right partially-reflective surface 121 and left partially-reflective surface 122.
- Section 101 is arranged so that reflective surface 121 and reflective surface 122 share a common edge and are arranged symmetrically about display axis 111. Section 101 can thus generate two fully complete and independent images (referred to herein as sub-images) of display 110, each traveling along independent optical paths (referred to herein as sub-paths).
- a right light source 125 and a left light source 126 lying in a line with display lens focal point 124 and arranged symmetrically about display axis 111.
- Light from sources 125 and 126 pass through surfaces 121 and 122, are collimated by display lens 115, and illuminate screen 110.
- the collimated light beams generated will be slightly skewed with respect to optical axis 111.
- the illumination of screen 110 by right light source 125 creates a display left-eye sub-image that is focused by lens 115 to impact reflective surface 122, which redirects the left-eye display sub-image down optical sub-path 140.
- the illumination of screen 110 by left light source 126 creates a right-eye display sub-image that is focused by lens 115 to impact reflective surface 121, which redirects the right-eye display sub-image down optical sub-path 130.
- the left-eye sub-image will follow optical sub-path 140 and be channeled to left-eye 146 of a user. Placed along optical sub-path 140 is left-eye reflector
- 25366238.1 142 which is a fully reflective surface arranged to redirect left-eye optical sub-path 140 by 90° and into left eyepiece optics 145.
- the 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 composed 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.
- Some embodiments may utilize diffusers on which real images are created.
- Right and left eyepiece optics 135, 145 may then be used to magnify the images for viewing by the user.
- the real images should be created after reflectors 132, 142 and very near right and left eyepiece optics 135, 145.
- Eyepiece optics 135 and 145 are adjustable single lenses, but other embodiments may use any arrangement that appropriately magnifies a right-eye sub-image and a left-eye sub-image for viewing by right-eye 136 and left-eye 146, respectively.
- reflectors 132, 142 of device 100 are depicted as mirrors, and surfaces 121, 122 are depicted as partially-reflective surfaces, embodiments are not limited to the use of mirrors or partially-reflective surfaces for redirecting an optical path or sub-path. Rather, prisms, polarizing beam splitters, or any other suitable arrangements can be used for redirecting an optical path or sub-path.
- Device 100 is also capable of adjusting for the varying IPDs of different users through the synchronized movements of optical elements.
- Right eyepiece optics 135 and left eyepiece optics 145 can shift through movements 152 and 151 respectively to create IPD 150a and IPD 150b.
- Section 101 can shift through movement 155.
- IPD distance 150a is changed to IPD 150b
- section 101 is simultaneously shifted toward plane 170 in movement 155 (downwards in the view of FIGURE 1).
- IPD 150b is changed to 150a
- section 101 is simultaneously shifted away from plane 170 (upwards in the view of FIGURE 1).
- Two off axis aperture stops 189, 199 may be placed between display lens 115 and splitter 120.
- the aperture stop, imaged in proximity to the viewer's pupil, is sized appropriately for the width necessary to cover the user's pupil movement when viewing the corners of the virtual screen..
- the size of the aperture should be 2-3 times larger than is necessary for transferring the spatial frequency range required by the resolution of display screen 110.
- left and right light sources 125, 126 should be of extended (non point source) size.
- Screen 110 of FIGURE 1 can transmit identical images of display screen 110 to both the right-eye and the left-eye of a user simultaneously. Identical sub- images of display screen 110 will travel along optical sub-paths 130 and 140 when both light sources 125 and 126 are used to simultaneously illuminate screen 110. If however, light sources 125 and 126 alternately illuminate screen 110, one set of images can be sent to the left-eye of user, while a different set of images can be sent to the right-eye of the user using the same screen.
- FIGURE 2 is a flow diagram arranged according to an embodiment of the present invention.
- a head mounted device such as device 100
- the screens of head mounted devices such as screen 110 of FIGURE 1, display data conveyed as data streams.
- diagram block 201 prepares multiple data streams for display on a screen. For example, one data stream may be prepared for viewing by a user's left-eye and a second data stream can be prepared for viewing by a user's right-eye.
- each data stream is linked with one of a plurality illuminating sources that exist for an appropriately arranged head mounted display.
- a data stream prepared for viewing by the right-eye of a user could be linked with left light source 126, and a data stream prepared for viewing by a left-eye of a user could be linked with right light source 125.
- block 203 interlaces the multiple data streams so that they can be
- the interlaced streams are displayed on a screen, while the screen is alternately illuminated by the light sources linked with the data streams being displayed.
- screen 110 would be illuminated by left light source 126.
- right light source 125 When the data stream to be viewed by the left-eye of the user is being displayed by screen 110, screen 110 would be illuminated by right light source 125.
- 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.
- the embodiments of the present invention are not limited to stereoscopic technique as depicted in FIGURES 2 and 3. Any pattern of interlacing a plurality of signals may be used. In practice, the specific pattern, the number of data streams, and the number of light sources will be dependent on the application. For example, many LCDs use color sequential illumination, namely red, green, and blue light pulses are sent in sequential LCD images. To accommodate this, embodiments may employ light sources 125 and 126 that utilize separately controllable red, green, and blue sources. Further arrangements of other embodiments for generating multiple images of display screen 110, such as illuminating display screen 110 with light of alternating polarization directions, may require adjustment to the above described procedures.
- 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.
- Left eyepiece 460 is composed of compound optics. A left-eye sub-image strikes the left-eye diffuser 444 and creates a real image on the surface. The left eyepiece compound optics will create a magnified virtual image from this real image appropriately for left-eye 146.
- a right-eye sub-image follows the right-eye optical sub-path 130 into right-eye transition optics 433.
- the right-eye transition optics 433 adjusts the right-eye display sub-image appropriately for reflection by right-eye reflector 132 into right eyepiece 461.
- Right eyepiece 461 is composed of compound optics.
- a right-eye sub-image strikes right-eye diffuser 434 and creates a real image.
- a magnified virtual image is created from the real image by compound optics for right-eye 136.
- Device 200 is capable of diopter correction through movement 253 of the compound optics 460 and of movement 254 of the compound optics 461.
- Two off axis aperture stops 470, 472 may be placed between display lens 115 and splitter 420 to determine the spatial frequency content of transition optics 433, 443. Consequently the size of the aperture stop in the embodiment of FIGURE 4 is determined by the display resolution, and thus smaller apertures, than those of FIGURE 1, may be used in the embodiment of FIGURE 4.
- Device 400 is also capable of IPD adjustment through the synchronized movements of separate optical blocks.
- IPD 150 can be shortened by shifting left eyepiece 460 to the right with movement 251, and eyepiece 461 to the left with movement 252.
- 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.
- FIGURES 5 and 5 A are top down views of a head mounted device arranged according to an embodiment of the present invention.
- Device 500 includes sub-image creation section 501.
- section 501 generates a left-eye display sub-image that follows optical sub-path 140 and a right-eye display sub-image following optical sub-path 130.
- Screen 110 of section 501 is advantageously illuminated by collimated light from light source 570 and light source 580 arranged to project light about source light path 576 and source light path 586, respectively.
- 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.
- Second color filter 575 is selected such that it passes blue and green light, but reflects red light.
- Red source 573 is placed adjacent to source light optical path 576 and arranged to reflect light off of second color filter 575 in a way that simulates placing red source 573 in the same location as blue source 571.
- Blue light, reflected green light, and reflected red light then follow source light optical path 576 and are reflected by source light reflector 590.
- source light reflector 590 can be a polarizing reflector arranged about display axis 111 and along optical path 112.
- 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.
- Light source 580 is comprised of blue source light 581 arranged along the source light path 586, preferably in a position at or near reflective focal point 524 of display optics 115.
- Blue source light 581 may be any light source capable of producing blue light, such as Chania NSCxlOO series light emitting diode (LED).
- LED light emitting diode
- Light from blue source 581 passes through a first color filter 584 arranged at an appropriate angle to source light path 586 and selected to pass blue light and to reflect green light.
- Green source 582 is placed adjacent to source light path 586 and arranged to reflect light off of color filter 584 in a way that simulates placing green source 582 in the same location as blue source 581.
- Blue light and the reflected green light follow source light path 586 passing through second color filter 585 arranged at an appropriate angle to source light optical path 586.
- Second color filter 585 arranged at an appropriate angle to source light optical path 586.
- filter 585 is selected to pass blue and green light, but reflect red light.
- Red source 583 is placed adjacent to source light path 586 and arranged to reflect light off of second color filter 585 in a way that simulates placing red source 583 in the same location as blue source 581. Blue light, reflected green light, and reflected red light then follow source light path 586 and are reflected by source light reflector 590.
- source light reflector 590 can be a polarizing reflector arranged about display axis 111 and along optical path 112. 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). 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.
- splitter 520 of FIGURE 5 (or splitter 120 of FIGURE 1, or splitter 420 of FIGURES 4) is placed near the focal point of display lens 115, but may be arranged at any point coinciding with a reduced splitting volume created by a display image focused by an optic such as lens 115.
- Light from source 570 is reflected from screen 110, forms an image of screen 110 that is focused by display lens 115, and is reflected off of prism splitter face 521 and along optical sub-path 130 as a right-eye sub-image.
- Light from source 580 is reflected from screen 110, forms an image of screen 110, is focused by display lens 115, and is reflected off of prism splitter face 522 and along optical sub-path 140 as a left-eye sub-image.
- 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.
- Eyepiece optics 135 and 145 are adjustable lenses, but other embodiments may use any arrangement that appropriately magnify a right-eye sub-image and a left-eye sub-image for viewing by right-eye 136 and left-eye 146, respectively.
- reflectors 142, 132 of device 500 are depicted as mirrors, embodiments are not limited to the use of mirrors for redirecting an optical sub-path. Rather, prisms, partially-reflective surfaces, polarizing beam splitters, or any other suitable arrangements can be used for redirecting an optical sub-path.
- Device 500 is also capable of correcting for the varying IPD of different users.
- Device 500 can adjust for IPD 150 of a particular user by movement of left eyepiece optics 145, and by movement of right eyepiece 135, and simultaneously moving the central part of the optics perpendicularly to the facial plane.
- Device 500 is also capable of diopter correction through movement of left eyepiece optics 135 and movement of right eyepiece optics 145.
- FIGURE 6 illustrates a top down view of a portion of a head-mounted display arranged according to another embodiment of the present invention.
- Device 600 includes source 608, placed at reflective focal point 124R, the light of which is reflected and polarized by polarization beam splitter 690.
- the light from source 608 is collimated by lens 115, reflected by display 110, and propagated along optical path 112.
- a polarization adjustment unit such as polarization rotator 609 which is able to rotate the polarization of the light from source 608.
- Polarization rotator is able to
- splitter 620 is an asymmetric V-mirror splitter arranged about focal point 124 of lens 115.
- Surface 621 of splitter 620 is polarization beam splitter and surface 622 is a fully reflective surface.
- device 600 selects the state of polarization rotator 609 that causes the light of source 608 to be reflected along optical sub-path 130 by surface 621.
- device 600 selects the state of polarization rotator 609 that would cause the light of source 608 to be passed by surface 621 and thus reflected by surface 622 along optical sub-path 140.
- the embodiment of FIGURE 6 is also 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 linked with the state of polarization rotator 609.
- 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.
- Splitter 620 is an asymmetric V-mirror splitter, in which 621 is a polarization beam splitter and 622 is a full mirror, and surface 621 will reflect the light of source 709 along optical sub-path 130 while passing the light of source 708 to be
- 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
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03799904A EP1723802A1 (en) | 2003-12-12 | 2003-12-12 | Multiple imaging arrangements for head mounted displays |
PCT/US2003/039756 WO2005062629A1 (en) | 2003-12-12 | 2003-12-12 | Multiple imaging arrangements for head mounted displays |
CA002548224A CA2548224A1 (en) | 2003-12-12 | 2003-12-12 | Multiple imaging arrangements for head mounted displays |
AU2003299615A AU2003299615B2 (en) | 2003-12-12 | 2003-12-12 | Multiple imaging arrangements for head mounted displays |
CNA2003801110085A CN1894975A (en) | 2003-12-12 | 2003-12-12 | Multiple imaging arrangement for head-wearing type display device |
BRPI0318642-3A BR0318642A (en) | 2003-12-12 | 2003-12-12 | multiple magnet arrangements for head-mounted display devices |
JP2005512420A JP2007524855A (en) | 2003-12-12 | 2003-12-12 | Multiple imaging configurations for head-mounted displays |
AU2008227081A AU2008227081A1 (en) | 2003-12-12 | 2008-09-23 | Multiple imaging arrangements for head mounted displays |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2003/039756 WO2005062629A1 (en) | 2003-12-12 | 2003-12-12 | Multiple imaging arrangements for head mounted displays |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005062629A1 true WO2005062629A1 (en) | 2005-07-07 |
Family
ID=34709653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2003/039756 WO2005062629A1 (en) | 2003-12-12 | 2003-12-12 | Multiple imaging arrangements for head mounted displays |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1723802A1 (en) |
JP (1) | JP2007524855A (en) |
CN (1) | CN1894975A (en) |
AU (2) | AU2003299615B2 (en) |
BR (1) | BR0318642A (en) |
CA (1) | CA2548224A1 (en) |
WO (1) | WO2005062629A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1840628A3 (en) * | 2006-03-07 | 2007-12-19 | Gentex Corporation | Helmet mounted display with a lens common to two optical paths |
WO2013074684A1 (en) * | 2011-11-15 | 2013-05-23 | Elbit Systems Of America, Llc | System and method for streaming multiple images from a single projector |
TWI614524B (en) * | 2016-12-06 | 2018-02-11 | 台達電子工業股份有限公司 | Head mounted display |
US11016579B2 (en) | 2006-12-28 | 2021-05-25 | D3D Technologies, Inc. | Method and apparatus for 3D viewing of images on a head display unit |
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 |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102122072B (en) * | 2011-03-16 | 2016-04-13 | 北京理工大学 | Headset micro-projection stereoscopic vision display |
CN105223692A (en) * | 2014-05-26 | 2016-01-06 | 联想(北京)有限公司 | Display device and electronic equipment |
US20170045750A1 (en) * | 2014-06-07 | 2017-02-16 | Hangzhou 3Dworld Technology Co., Ltd. | Structure of Left and Right Viewing Mirrors of High-Definition Naked-eye Portable Stereoscopic Video Player |
CN105223693A (en) * | 2014-06-26 | 2016-01-06 | 联想(北京)有限公司 | Display device and electronic equipment |
CA2955942A1 (en) * | 2014-07-22 | 2016-01-28 | Barco, Inc. | Display systems and methods employing polarizing reflective screens |
CN104749779B (en) * | 2014-12-24 | 2017-06-06 | 张璁 | Double screen Helmet Mounted Display |
WO2016118643A1 (en) * | 2015-01-21 | 2016-07-28 | Tesseland Llc | Display device with total internal reflection |
CN104570367B (en) * | 2015-01-28 | 2018-12-18 | 深圳市安华光电技术有限公司 | A kind of 3 d display device |
CN104570356A (en) * | 2015-02-03 | 2015-04-29 | 深圳市安华光电技术有限公司 | Single image source binocular near-to-eye display device |
CN106461939B (en) * | 2015-05-29 | 2019-03-15 | 深圳市柔宇科技有限公司 | From the method and head-mounted display apparatus of adaptation vision-control |
US10261319B2 (en) * | 2015-11-03 | 2019-04-16 | Google Llc | Display of binocular overlapping images in a head mounted display |
CN105511095A (en) * | 2016-01-08 | 2016-04-20 | 广东未来科技有限公司 | Head-wearing 3D (three-dimensional) display equipment |
CN107436489A (en) * | 2016-05-25 | 2017-12-05 | 台达电子工业股份有限公司 | Head mounted display |
CN108828774A (en) * | 2018-07-02 | 2018-11-16 | 京东方科技集团股份有限公司 | Virtual reality shows equipment |
CN110780442A (en) * | 2018-07-30 | 2020-02-11 | 宏达国际电子股份有限公司 | Head-mounted display and using method thereof |
US11029908B2 (en) * | 2019-08-28 | 2021-06-08 | Himax Display, Inc. | Head mounted display apparatus |
KR102489272B1 (en) * | 2020-07-07 | 2023-01-17 | 한국과학기술연구원 | Near eye display apparatus |
CN112346250B (en) * | 2020-10-27 | 2023-01-17 | 京东方科技集团股份有限公司 | Virtual reality head-mounted display equipment and display method |
EP4249990A4 (en) * | 2020-11-19 | 2024-05-15 | Sony Semiconductor Solutions Corp | Video display device, video display system, and video display method |
US11754854B2 (en) * | 2021-06-18 | 2023-09-12 | Htc Corporation | Head mounted display device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6219186B1 (en) * | 1998-04-06 | 2001-04-17 | Optimize Incorporated | Compact biocular viewing system for an electronic display |
US6246383B1 (en) * | 1998-01-28 | 2001-06-12 | U.S. Philips Corporation | Head-mounted display |
US6271808B1 (en) * | 1998-06-05 | 2001-08-07 | Silicon Light Machines | Stereo head mounted display using a single display device |
US20020000951A1 (en) * | 2000-06-26 | 2002-01-03 | Richards Angus Duncan | Display device enhancements |
US20020080496A1 (en) * | 2000-12-23 | 2002-06-27 | Michael Kaschke | Stereoscopic display system having a single display |
-
2003
- 2003-12-12 JP JP2005512420A patent/JP2007524855A/en active Pending
- 2003-12-12 BR BRPI0318642-3A patent/BR0318642A/en not_active IP Right Cessation
- 2003-12-12 WO PCT/US2003/039756 patent/WO2005062629A1/en active Application Filing
- 2003-12-12 CA CA002548224A patent/CA2548224A1/en not_active Abandoned
- 2003-12-12 CN CNA2003801110085A patent/CN1894975A/en active Pending
- 2003-12-12 AU AU2003299615A patent/AU2003299615B2/en not_active Ceased
- 2003-12-12 EP EP03799904A patent/EP1723802A1/en not_active Withdrawn
-
2008
- 2008-09-23 AU AU2008227081A patent/AU2008227081A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6246383B1 (en) * | 1998-01-28 | 2001-06-12 | U.S. Philips Corporation | Head-mounted display |
US6219186B1 (en) * | 1998-04-06 | 2001-04-17 | Optimize Incorporated | Compact biocular viewing system for an electronic display |
US6271808B1 (en) * | 1998-06-05 | 2001-08-07 | Silicon Light Machines | Stereo head mounted display using a single display device |
US20020000951A1 (en) * | 2000-06-26 | 2002-01-03 | Richards Angus Duncan | Display device enhancements |
US20020080496A1 (en) * | 2000-12-23 | 2002-06-27 | Michael Kaschke | Stereoscopic display system having a single display |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1840628A3 (en) * | 2006-03-07 | 2007-12-19 | Gentex Corporation | Helmet mounted display with a lens common to two optical paths |
US11016579B2 (en) | 2006-12-28 | 2021-05-25 | D3D Technologies, Inc. | Method and apparatus for 3D viewing of images on a head display unit |
US11036311B2 (en) | 2006-12-28 | 2021-06-15 | D3D Technologies, Inc. | Method and apparatus for 3D viewing of images on a head display unit |
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 |
US11520415B2 (en) | 2006-12-28 | 2022-12-06 | D3D Technologies, Inc. | Interactive 3D cursor for use in medical imaging |
WO2013074684A1 (en) * | 2011-11-15 | 2013-05-23 | Elbit Systems Of America, Llc | System and method for streaming multiple images from a single projector |
CN104220921A (en) * | 2011-11-15 | 2014-12-17 | 美国埃尔比特***有限责任公司 | System and method for streaming multiple images from single projector |
AU2012340023B2 (en) * | 2011-11-15 | 2015-12-17 | Elbit Systems Of America, Llc | System and method for streaming multiple images from a single projector |
TWI614524B (en) * | 2016-12-06 | 2018-02-11 | 台達電子工業股份有限公司 | Head mounted display |
US10368060B2 (en) | 2016-12-06 | 2019-07-30 | Delta Electronics, Inc. | Head mounted display |
Also Published As
Publication number | Publication date |
---|---|
JP2007524855A (en) | 2007-08-30 |
BR0318642A (en) | 2006-11-28 |
AU2008227081A1 (en) | 2008-10-23 |
CA2548224A1 (en) | 2005-07-07 |
AU2003299615B2 (en) | 2008-07-17 |
EP1723802A1 (en) | 2006-11-22 |
CN1894975A (en) | 2007-01-10 |
AU2003299615A1 (en) | 2005-07-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7764431B2 (en) | Multiple imaging arrangements for head mounted displays | |
AU2003299615B2 (en) | Multiple imaging arrangements for head mounted displays | |
KR101614956B1 (en) | Head-mounted single-panel stereoscopic display | |
CA2548398C (en) | Optical arrangements for head mounted displays | |
AU2017258032B2 (en) | Three-dimensional display system based on division multiplexing of viewer's entrance-pupil and display method thereof | |
CN115516366A (en) | Image display system and method for expanding visual space | |
WO2007062098A2 (en) | Display with image-guiding substrate | |
CN217739617U (en) | System for providing steerable hybrid display using waveguides | |
JP2006091333A (en) | Three-dimensional video display device | |
CN112748570B (en) | Orthogonal characteristic grating-pixel array pair and near-eye light field display module based on same | |
JP2001215441A (en) | Image observation device | |
KR100873409B1 (en) | Multiple imaging arrangements for head mounted displays | |
Travis et al. | Flat projection for 3-D | |
TWI262339B (en) | Multiple imaging arrangements for head mounted displays | |
JP2021152565A (en) | Display unit and optical element | |
RU2331910C2 (en) | Multiple image formation system for head displays | |
MXPA06006604A (en) | Multiple imaging arrangements for head mounted displays | |
KR20070004573A (en) | Optical arragements for head mounted displays | |
TW202212915A (en) | Image display systems for eyebox expansion and methods of making the same | |
KR20010001314A (en) | A head mount display |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200380111008.5 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2003299615 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2548224 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 3295/DELNP/2006 Country of ref document: IN |
|
WWE | Wipo information: entry into national phase |
Ref document number: PA/a/2006/006604 Country of ref document: MX |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2005512420 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2003799904 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020067013996 Country of ref document: KR Ref document number: 2006124859 Country of ref document: RU |
|
WWP | Wipo information: published in national office |
Ref document number: 1020067013996 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 2003799904 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: PI0318642 Country of ref document: BR |
|
ENP | Entry into the national phase |
Ref document number: 2003299615 Country of ref document: AU Date of ref document: 20031212 Kind code of ref document: B |