WO2013027433A1 - Dispositif d'affichage d'image - Google Patents

Dispositif d'affichage d'image Download PDF

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Publication number
WO2013027433A1
WO2013027433A1 PCT/JP2012/057695 JP2012057695W WO2013027433A1 WO 2013027433 A1 WO2013027433 A1 WO 2013027433A1 JP 2012057695 W JP2012057695 W JP 2012057695W WO 2013027433 A1 WO2013027433 A1 WO 2013027433A1
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WO
WIPO (PCT)
Prior art keywords
eye
right eye
polarization state
beam light
light
Prior art date
Application number
PCT/JP2012/057695
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English (en)
Japanese (ja)
Inventor
智生 小堀
大内　敏
瀬尾　欣穂
横山　淳一
Original Assignee
日立コンシューマエレクトロニクス株式会社
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Application filed by 日立コンシューマエレクトロニクス株式会社 filed Critical 日立コンシューマエレクトロニクス株式会社
Publication of WO2013027433A1 publication Critical patent/WO2013027433A1/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • 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
    • 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]
    • H04N13/341—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using temporal multiplexing
    • 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
    • G02B2027/014—Head-up displays characterised by optical features comprising information/image processing systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers

Definitions

  • the present invention relates to an image display apparatus that displays an image by applying a light beam to a swinging and rotating reflecting mirror and projecting and scanning the obtained reflected light on a display surface, and particularly displays an image suitable for a head-mounted display (HMD). Relates to the device.
  • HMD head-mounted display
  • the head mounted display is excellent in convenience and portability, and various implementation forms have been proposed by improving display device technology and visibility technology.
  • a binocular goggle type using a pair of liquid crystal panels As a main type of HMD, a binocular goggle type using a pair of liquid crystal panels, a headphone type, and a compact and lightweight monocular type eyeglass type using a single liquid crystal panel are known.
  • the eye width and the like are different for each person, so it is necessary to add some adjustment function to the HMD side to ensure visibility so as to match the eye width of each person.
  • Patent Document 1 discloses an optical path splitting unit that splits a light beam from one original image into two light beams in order to provide an optical system that does not cause out-of-focus even when eye width adjustment is performed.
  • a relay lens system for forming a secondary image is provided.
  • the relay lens system includes a first relay system in which the front focal point is located at the position of the original image, and a second relay in which the rear focal point is located at the position of the secondary image.
  • the optical path splitting means is configured to split the optical path between the first relay system and the second relay system.
  • the left and right images constituting the stereoscopic image are displayed on the display surface in order to make the viewing distance and the convergence distance coincide with each other while maintaining the stereoscopic effect so that natural stereoscopic viewing is possible and no mechanical mechanism is required.
  • a video shift unit that shifts at least one of the left and right videos displayed on the display unit in the horizontal direction so that the convergence distance is substantially fixed in time.
  • a light beam emitted from a light source is scanned two-dimensionally by deflecting means such as a reflecting mirror, and a two-dimensional image is displayed on the screen by the afterimage effect.
  • deflecting means such as a reflecting mirror
  • Type video display devices have been proposed. It is also possible to apply this scanning image display apparatus to the above-described HMD.
  • Patent Documents 1 and 2 make various adjustments when adjusting the eye width of an individual person or matching the convergence distance and the viewing distance.
  • the lens system and the optical system configuration such as aberration correction and distortion correction become complicated, leading to an increase in the size and weight of the apparatus, which may impair the original convenience and portability of the HMD.
  • the image is time-divided using shutter glasses, or the image is time-divided or divided into regions using polarized glasses.
  • the method is common.
  • the polarization component of the outside scene to be viewed is shielded by the amount of time division or polarization separation, and the brightness may be reduced.
  • An object of the present invention is to provide a special lens system or an optical system such as aberration correction or distortion correction when adjusting the eye width of an individual person in a binocular type HMD, or when making various adjustments so that the convergence distance and the viewing distance coincide with each other.
  • An object of the present invention is to provide a video display device that does not require a configuration.
  • the present invention relates to a binocular display in which a beam light is emitted two-dimensionally and an image is displayed on a binocular type display screen, respectively, and a light source that emits the beam light and an input video signal are processed.
  • An image processing unit that outputs a left / right eye video signal to be displayed on the screen, a light source driving unit that drives a light source in accordance with the left / right eye video signal, and emits beam light, and 2
  • a oscillating mirror that deflects dimensionally, a mirror drive unit that oscillates and rotates the oscillating mirror at a predetermined angle in synchronization with the video signal for the left / right eye, and beam light from the oscillating mirror for the left / right eye
  • an eyepiece optical system that separates the beam into a left beam and a right eye display surface.
  • the eyepiece optical system can adjust the eye width, which is the distance between the display surfaces for the left / right eyes, and the mirror driver can move the left / right eye from the oscillating mirror generated by adjusting the eye width of the eyepiece optical system.
  • the oscillating mirror is driven with different oscillating rotation angles with respect to the video signal for the left / right eye according to the difference in the optical path length to the display surface.
  • the eyepiece optical system can adjust the eye width which is the interval between the display surfaces for the left / right eyes, and the image processing unit can be a fluctuation generated by adjusting the eye width of the eyepiece optical system.
  • the length of the display period of the left / right eye video signal is varied and output.
  • the video display device of the present invention when adjusting the eye width of an individual person in a binocular type HMD, or when making various adjustments to make the convergence distance and the viewing distance coincide with each other, a special lens system, aberration correction, distortion correction, etc. An optical system configuration is unnecessary, which leads to a reduction in the size and weight of the apparatus, and can make use of the original convenience and portability of the HMD.
  • the brightness of the visually recognized outside scene can be maintained in an HMD that displays the same or different images on the left and right using a single display element for stereoscopic viewing and that simultaneously views the outside scene.
  • FIG. 1 is a diagram illustrating timing signals for video display of the left eye and the right eye in Embodiment 1.
  • FIG. It is a block diagram which shows the video display apparatus by a 2nd Example (Example 2). It is a figure which shows the timing signal of the video display of the left eye and right eye in Example 2.
  • FIG. 3 is a diagram illustrating a left eye and right eye scanning area and an image display area in the first embodiment. It is a figure which shows the scanning area
  • FIG. is a block diagram which shows the video display apparatus by a 3rd Example (Example 3). It is a block diagram which shows the video display apparatus by a 4th Example (Example 4).
  • FIG. 1 is a block diagram showing a video display apparatus according to a first embodiment of the present invention.
  • This embodiment is a type of HMD that uses a single display element to display the same or different images on the left and right in a time-division manner and stereoscopically view, and to view the outside scene at the same time.
  • the display method is a method in which a light beam emitted from a light source is reflected by a oscillating mirror, projected onto left and right display surfaces, and scanned two-dimensionally to display an image.
  • the video display apparatus will be described separately for an optical system and a control system.
  • the optical system is composed of red (R), green (G), and blue (B) laser light sources 10r / g / b, a collimating lens 11, a mirror and a dichroic prism, and combines light beams of the respective colors.
  • Unit 12 polarization conversion unit 14 that repeats transmission and polarization conversion in a time-sharing manner, two-axis oscillating mirrors 6 and 7 that deflect beam light two-dimensionally, a polarizing beam splitter 15 and a mirror 16 as an eyepiece optical system, It has an eye part 17L / R and is configured to project an image from the right eye side on the left / right eye 18L / R of the user as a display surface.
  • Each laser light source 10 emits the light beam of the same polarization state (P-polarized light in this embodiment) modulated by the video signal, and becomes the light beam 13 aligned on the same axis in the optical multiplexing unit 12.
  • the light beam is switched alternately between the P-polarized light and the S-polarized light in a time division manner by the polarization converter 14, and the biaxial oscillating mirrors 6 and 7 oscillate and rotate the reflecting mirrors horizontally and vertically at a predetermined angle.
  • the beam light is deflected two-dimensionally.
  • the deflected beam light when the deflected beam light is S-polarized light, it is reflected and proceeds to the eyepiece 17R for the right eye, and when it is P-polarized light, it is transmitted and passed through the mirror 16 to the eyepiece 17L for the left eye.
  • the eyepiece 17R for the right eye when it is P-polarized light, it is transmitted and passed through the mirror 16 to the eyepiece 17L for the left eye.
  • the right eye 18R and left eye 18L which are display surfaces, respectively, and displays an image.
  • the configuration of the control system includes a timing generation unit 3 that generates a timing signal, a mirror control unit 4 that sets a swing condition of the swing mirrors 6 and 7, a mirror drive unit 5 that drives the swing mirrors 6 and 7, and an input video. It has an image processing unit 8 that processes a signal to generate a display video signal, and a light source driving unit 9 that drives a laser light source 10.
  • the input video signal 2 is separated into a left-eye video signal and a right-eye video signal by the image processing unit 8, and the light source driving unit 9 drives the laser light source 10 in accordance with each video signal (R, G, B). Supply signal.
  • the timing generation unit 3 determines the display timing of the video signal for the left eye and the right eye in accordance with the swing timing of the swing mirrors 6 and 7, and switches the P polarization / S polarization of the polarization conversion unit 14. Control.
  • the eye width signal 1 indicating the interval (eye width ⁇ d) between the left / right eyes 18L / R of the user is input to the timing generation unit 3 and sent to the mirror control unit 4.
  • the mirror control unit 4 sets the swing angle of the swing mirrors 6 and 7 for left eye display and right eye display according to the eye width ⁇ d, and the mirror drive unit 5 swings the swing angle with respect to the swing mirrors 6 and 7.
  • the drive signal according to the is supplied.
  • a laser light source 10 that can easily modulate the light quantity of the beam light at high speed is used.
  • an LED light source may be used together with an optical component for beam condensing and a light amount modulating component.
  • the spot diameter of the light beam (beam diameter) is defined as a spot diameter where the radiant intensity is 1 / e 2 (13.5%) of the peak value or the value on the optical axis.
  • the video to be displayed satisfies the desired resolution.
  • transmission is performed in a time division manner (P-polarized output) in accordance with the display period of the left eye / right eye based on the switching signal (LR_SW) between the left eye video and the right eye video from the timing generation unit 3.
  • polarization conversion S-polarized light output
  • the biaxial oscillating mirrors 6 and 7 oscillate the reflecting mirror two-dimensionally, and the drive system may be any of electromagnetic induction, piezoelectric drive, electrostatic drive, and the like.
  • the oscillating mirror 7 that vertically scans the display screen (V_scan) oscillates at a period of 60 Hz.
  • the mirror driving unit 5 supplies a 25 kHz horizontal drive signal (H_drive) and a 60 Hz vertical drive signal (V_drive) to the oscillating mirrors 6 and 7.
  • the horizontal / vertical swing angle (rotation angle) of the swing mirrors 6 and 7 is adjusted by changing the horizontal / vertical drive signal amplitude.
  • the screen In the vertical drive, the screen is scanned in one direction (for example, from the top to the bottom), but in the horizontal drive, the screen is scanned back and forth in two directions (left to right and right to left).
  • Eye width adjustment is performed at the eyepiece 17L / R. If the fixed optical path length from the oscillating mirror 6 to the right eye 18R is d and the eye width of the user is ⁇ d, the optical path length from the oscillating mirror 6 to the left eye 18L is d + ⁇ d. In the eye width adjustment, after the position of the eyepiece 17R is adjusted to the right eye 18R of the user, the position of the eyepiece 17L is moved to match the left eye 18L of the user by using an adjustment mechanism (not shown). This adjustment may be performed not only when the HMD is mounted but also during video display.
  • the left eye and the right eye each have a desired scanning range. Then, the swinging conditions of the swinging mirrors 6 and 7 are set and driven.
  • the image processing unit 8 sets and processes image processing conditions so that each of the left eye and the right eye has a desired video display size.
  • the swing angle of the swing mirrors 6 and 7 is set according to the difference in the optical path length from the swing mirrors 6 and 7 caused by the user's eye width ⁇ d, and the left eye image display and It is characterized in that the rocking angles of the rocking mirrors 6 and 7 are switched when displaying the right eye image.
  • FIG. 2 is a diagram showing timing signals for video display of the left eye and the right eye.
  • the upper side of the drawing shows the timing signal in the vertical direction of the screen, and the lower side shows the timing signal in the horizontal direction of the screen.
  • the timing generation unit 3 generates vertical / horizontal start reference signals (V_start, H_start) from the swing position signals (V_position, H_position) of the swing mirrors 6 and 7 detected by the mirror drive unit 5, and based on this, the video A signal frame start signal (V_sync) and a line start signal (H_sync) are generated. Further, the timing generation unit 3 is a switching signal for switching the mirror drive signals (V_drive, H_drive) between the left eye and the right eye in order to realize time division display of the left eye (L-ch) and the right eye (R-ch). A switching signal (LR_SW) for switching the video display period (V_disp, H_disp) between the left eye and the right eye (LR_SW_M) is generated.
  • the left / right eye swing angle ⁇ L / R of the mirrors 6 and 7 is determined so that RSh / RSv match.
  • the vertical oscillating mirror 7 is similarly determined according to the vertical raster scan amount RSv.
  • the mirror drive unit 5 gives drive signals (H_drive, V_drive) to the oscillating mirrors 6 and 7 so as to oscillate at the oscillation angle ⁇ L / R.
  • the swing angle is proportional to the drive voltage, as shown in FIG. 2, the drive signal amplitude for the right eye drive period is 5.7 (relative value), and the drive signal amplitude for the left eye drive period is By setting the value to 2.2 (relative value), the horizontal / vertical raster scan amounts RSh / RSv with the left / right eye can be matched.
  • the timing generation unit 3 adjusts the video display area (period) signal (period) so that the resolution matches the video display area in the left and right eyepieces 17L / R in accordance with the rocking conditions of the rocking mirrors 6 and 7.
  • V_disp, H_disp) and left / right eye pixel clocks (clk_l, clk_r) are generated.
  • the image processing unit 8 performs frame rate conversion, scaling, and resolution so that the input video signal Video for left / right eye is synchronized with the video display area signal (V_disp, H_disp) and the pixel clock (clk_l, clk_r). Conversion and the like are performed and output to the light source drive unit 9.
  • the video display area signal (V_disp) in the vertical direction has a right eye display start time t1, a right eye display area time t2, a left eye display start time t3, and a left eye display area time t4 based on the vertical synchronization signal (V_sync). It is a signal to determine.
  • the horizontal video display area signal (H_disp) is scanned in the forward direction (from left to right) with the horizontal synchronization signal (H_sync) as a reference within the period of the right eye display area time t2 and the left eye display area time t4. It is determined separately in the right direction) and the reverse direction (from right to left).
  • a forward display start time t21, a forward display area time t22, a backward display start time t23, and a backward display area time t24 are defined, and for the left eye, a forward display start time t41 and a forward display.
  • An area time t42, a reverse display start time t43, and a reverse display area time t44 are determined.
  • the scanning area (raster scanning amount) is matched with the left / right eye
  • the video display area signals (V_disp, H_disp) and the pixel clocks (clk_l, clk_r) are left Same condition for eyes and right eye.
  • FIG. 5 is a diagram showing a scanning area and an image display area for the left eye and the right eye.
  • the scanning area 20L / R and the video display area 21L / R in the eyepiece 17L / R are driven under the same conditions for both the left and right eyes.
  • the vertical display start times t1 and t3 and the horizontal display start times t21, t23, t41, and t43 are adjusted in the video display area signals (V_disp, H_disp) in FIG.
  • the video display area 21L / R in the scanning area 20L / R shown in FIG. 5 is shifted up, down, left, and right, and the user can view the stereoscopic video without a sense of incongruity.
  • the brightness of the outside scene to be viewed can be maintained in a type of HMD that uses the single display element to display the same or different images on the left and right for stereoscopic viewing and simultaneously view the outside scene.
  • the P / S polarization is switched for switching between the left eye and the right eye, but right / left circular polarization may be used.
  • the light source is a non-polarized light source such as an LED element or phosphor excitation light, it may be aligned with any of the P / S polarized light components, or the polarization converter 14 may change the P polarized light or S polarized light components. You may select by division
  • the oscillating mirrors 6 and 7 are configured to mechanically oscillate the mirror surface, but may be configured by an electric deflection element that electrically controls the amount of diffraction and refraction of light.
  • the optical path from the oscillating mirror 6 to the eyepiece 17L / R is not limited to the configuration shown in FIG. 1, and may be configured to be incident from the left eye side if the left / right eye has different polarization components. good.
  • the raster scan amount has been described in the optical system on the premise of direct drawing, a configuration in which the raster scan amount is adjusted by arranging an enlargement / reduction optical system corresponding to the beam diameter, for example, in the eyepiece portion 17L / R.
  • a detector for detecting the left eye / right eye gazing point may be added to the eyepiece 17L / R, and the video display area may be shifted based on the gazing point information.
  • FIG. 3 is a block diagram showing a video display apparatus according to the second embodiment of the present invention.
  • the swing condition (H_drive) of the horizontal swing mirror 6 is the same in the drive period for the left / right eye, and the image processing unit 8
  • the length of the display period in the horizontal direction of the output video signal for the left / right eye is different.
  • the change of the display period is referred to as “scaling process”. This method is used when it is difficult to switch the oscillating angle (amplitude) of the oscillating mirror 6 to a high speed (for example, 25 kHz) in the left / right eye driving period due to the influence of the resonance frequency characteristics of the oscillating mirror 6. It becomes effective.
  • the left / right eye horizontal raster scan amount RSh is proportional to the respective optical path lengths and corresponds to the eye width ⁇ d. There will be a difference as much as you do.
  • Reduce (scaling process) to match the display size of the left / right eye.
  • the scaling process is not performed.
  • FIG. 4 is a diagram showing timing signals for video display of the left eye and the right eye.
  • the upper side of the drawing shows a timing signal in the vertical direction of the screen, and the lower side shows a timing signal in the horizontal direction of the screen.
  • the vertical drive signal (V_drive) for the oscillating mirror 7 gives different amplitudes for the left and right eyes as in the first embodiment (FIG. 2), but the horizontal drive signal (H_drive) is the same for the left and right eyes. Give the amplitude.
  • the left eye and the right eye may have the same conditions.
  • scaling processing is performed so that the left and right eyes have the same video display area, and the left eye display area time is reduced to t42 ′ and t44 ′.
  • the eye display start time is changed to t41 ′ and t43 ′.
  • the frequency (modulation speed) of the pixel clock (clk_l) is increased in order to maintain the resolution of the display image of the left eye by reducing the display area time.
  • the laser light source 10r / g / b is adjusted and driven so that a desired luminance can be obtained according to the light emission time per pixel.
  • FIG. 6 is a diagram showing a left eye and right eye scanning area and a video display area.
  • the scanning area 20L / R is different on the left and right, the video display area 21L / R can be the same on the left and right.
  • the display area shift adjustment for matching the convergence distance and the viewing distance between the left and right eyes is the same as in the first embodiment, in the vertical display start times t1 and t3 in FIG. 4 and the horizontal display start time t21. , T23, t41 ′, t43 ′.
  • the left and right display areas can be electrically processed so as to be the same.
  • it is configured to electrically adjust based on the timing signal, so a special lens system, aberration correction, An optical system configuration such as distortion correction becomes unnecessary.
  • the swing condition (H_drive) of the horizontal swing mirror 6 is the same for the left / right eye, but the swing condition (V_drive) of the vertical swing mirror 7 is set to the left / right. It can be the same for the right eye. In that case, the scaling process may be applied to the vertical display period of the video signal for the left / right eye.
  • FIG. 7 is a block diagram showing a video display device according to a third embodiment of the present invention.
  • the configuration of the first embodiment (FIG. 1) is such that the polarization conversion unit 14 is eliminated and two light sources having different polarization directions for each wavelength are used as the laser light source 10r / g / b. is there.
  • two elements having a polarization state of P-polarized light and S-polarized light are arranged, and a total of six light beams are emitted.
  • the optical combiner 12 combines them, aligns them on the same axis, and combines them into one beam light 13 '.
  • the light source driver 9 ′ drives / stops each of the two elements (for P-polarized light and S-polarized light) of the laser light source 10r / g / b at the timing of the switching signal (LR_SW) shown in the first embodiment.
  • Switch. As described in the first embodiment, the left and right video display areas in the eyepiece 17L / R are switched as shown in FIG. 5 by switching the swing angle of the swing mirrors 6 and 7 between the left eye and the right eye. 21L / R is the same.
  • the light source driver 9 ′ emits P-polarized light and S-polarized light from the laser light source 10r / g / b at the same time, and the left eye image and the right eye image are displayed on the eyepiece 17L / R. It can also be displayed at the same time.
  • the synthesized light beam 13 ' is superimposed with the left-eye P-polarized light and the right-eye S-polarized light, so that the oscillating mirrors 6 and 7 are driven under a single oscillating condition.
  • the image processing (scaling processing in the horizontal direction and the vertical direction) described in the second embodiment is performed on the video signal for the left eye (P-polarized light), so that the eyepiece 17L / R as shown in FIG.
  • the left and right video display areas 21L / R can be made the same.
  • FIG. 8 is a block diagram showing a video display device according to a fourth embodiment of the present invention.
  • a movable focus lens mechanism 19 used in a pickup device such as a CD / DVD is replaced by a polarization converter 14 and swing mirrors 6 and 7. It is arranged on the beam optical path between.
  • the focus position is switched by the above-described switching signal (LR_SW) between the left eye image and the right eye image, and control is performed so that the left and right images have the same beam diameter in the eyepiece 17L / R.
  • LR_SW switching signal
  • the focus position may be on the retina of the eyeball.
  • the present invention is not limited to the above-described embodiments, and a part of the configuration of one embodiment may be replaced with the configuration of another embodiment, or the configuration of another embodiment may be added to the configuration of one embodiment. It is also possible to do.
  • the video display device suitable for the HMD has been described.
  • the present invention is not limited to direct drawing on the eyeball, and displays at least two videos (same angle of view or different angles of view) with different projection areas.
  • the present invention can also be applied to a projection display device that is configured to achieve the same effect.
  • 1 eye width signal ( ⁇ d)
  • 2 video signal
  • 3 timing generation unit
  • 4 mirror control unit
  • 5 mirror drive unit
  • 6, 7 biaxial oscillating mirror
  • 8 image processing unit
  • 9, 9 ' light source drive unit
  • 10r / g / b light source
  • 11 collimating lens
  • 12 optical multiplexing unit
  • 13' beam light
  • 14 polarization conversion unit
  • 15 polarization beam splitter
  • 16 mirror
  • 17L / R eyepiece
  • 18L / R left / right eye
  • 19 focus lens mechanism
  • 20L / R scanning area
  • 21L / R video display area
  • V_drive, H_drive mirror drive signal
  • V_disp H_disp: Video display area signal.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

La présente invention porte sur un système de lentille spéciale ou une configuration de système optique pour correction d'aberration, correction de distorsion ou similaire non nécessaire lors de la réalisation d'ajustements de distance interpupillaire pour des individus ou la réalisation d'ajustements divers pour ajustements de distance de convergence ou de plage visuelle dans un visiocasque de type binoculaire (HMD). Des miroirs oscillants (6, 7) amènent une lumière de faisceau en provenance d'une source lumineuse (10) à dévier de manière bidimensionnelle au moyen de miroirs réfléchissants. Des systèmes optiques oculaires (15 - 17) séparent la lumière de faisceau venant des miroirs oscillants, et guident la lumière de faisceau vers les yeux gauche et droit (18), respectivement. Une unité d'entraînement de miroir (5) amène les angles d'oscillation des miroirs oscillants à être différents pour des signaux d'image d'œil droit et gauche selon la différence de longueur de trajet de lumière survenant en raison de la distance interpupillaire (∆d) dans les systèmes optiques oculaires, ou une unité de traitement d'image (8) amène la longueur de la période d'affichage pour les signaux d'image d'œil droit et gauche à être différente selon la différence de longueur de trajet de lumière survenant en raison de la distance interpupillaire (∆d).
PCT/JP2012/057695 2011-08-22 2012-03-26 Dispositif d'affichage d'image WO2013027433A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011-180356 2011-08-22
JP2011180356A JP5685689B2 (ja) 2011-08-22 2011-08-22 映像表示装置

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WO2013027433A1 true WO2013027433A1 (fr) 2013-02-28

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