WO2011033766A1 - Dispositif d'affichage pour information d'image - Google Patents

Dispositif d'affichage pour information d'image Download PDF

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Publication number
WO2011033766A1
WO2011033766A1 PCT/JP2010/005635 JP2010005635W WO2011033766A1 WO 2011033766 A1 WO2011033766 A1 WO 2011033766A1 JP 2010005635 W JP2010005635 W JP 2010005635W WO 2011033766 A1 WO2011033766 A1 WO 2011033766A1
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WIPO (PCT)
Prior art keywords
person
light beam
display device
light beams
projection
Prior art date
Application number
PCT/JP2010/005635
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English (en)
Japanese (ja)
Inventor
茂 嶋川
収 永原
治彦 奥村
宏美 鈴木
直忠 岡田
Original Assignee
株式会社 東芝
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.)
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Application filed by 株式会社 東芝 filed Critical 株式会社 東芝
Publication of WO2011033766A1 publication Critical patent/WO2011033766A1/fr

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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/20—Optical features of instruments
    • B60K2360/33—Illumination features
    • B60K2360/334—Projection means

Definitions

  • the embodiments described herein generally relate to video information display devices.
  • HUD Head-up Display
  • display information such as navigation information is projected onto a windshield, and a person can visually recognize external information and display information at the same time.
  • binocular head-up display binocular parallax occurs between the external information and the display information, and the display becomes difficult to see.
  • Japanese Unexamined Patent Application Publication No. 2009-128565 proposes a monocular display device in which the display is viewed with one eye. According to this display device, a virtual image of a display object can be perceived at a depth position matching the background, and a display with enhanced depth and stereoscopic effect can be provided.
  • Such a monocular display device can be applied to, for example, an in-vehicle head-up display, and binocular parallax does not occur even when external information and display information are viewed simultaneously, and a desired depth position is obtained.
  • the display can be presented and perceived.
  • Such a monocular display device can be applied not only to an in-vehicle head-up display but also to an amusement application such as a game, and a sense of depth and a stereoscopic effect can be enhanced to provide a highly realistic display.
  • a monocular display device In a monocular display device, the projection area of a light beam including display content is controlled to be narrow so that the display cannot be viewed with both eyes. For this reason, if one eye for viewing deviates from the projection area, the person who is trying to view loses sight of the display. Such a monocular display device is desired to make the display easier to see and use.
  • a display device that projects a plurality of light fluxes including video information toward a person.
  • the interval between the plurality of light beams at the position of the person is wider than the distance between the eyes of the person, and at least one of the widths of the light beams at the position of the person is narrower than the distance between the eyes of the person. It can be set as follows.
  • a display device including a video projection unit that projects a plurality of light fluxes including video information toward a person.
  • the video projection unit includes a primary light beam generation unit and a division projection unit.
  • the primary light beam generation unit generates a primary light beam including video information.
  • the split projection unit includes a splitting element that splits the primary light beam into a plurality of light beams, and controls an interval between the plurality of light beams and a width of the plurality of light beams.
  • a display device including a video projection unit that projects a plurality of light fluxes including video information toward a person.
  • the image projection unit includes a plurality of primary light beam generation units, a plurality of projection units, and at least one image formation unit.
  • the plurality of primary light beam generation units generate a primary light beam including video information.
  • the plurality of projection units project a plurality of light beams corresponding to the plurality of primary light beams from the plurality of primary light beam generation units, and the interval between the plurality of light beams, the width of the plurality of light beams, To control.
  • the at least one image forming unit is provided in an optical path between the plurality of primary light beam generation units and the plurality of projection units, and forms an image based on an image signal.
  • the first embodiment will be described.
  • the display device according to the first embodiment is a display device that can be viewed with one eye, and can be applied to an amusement application such as a game in addition to an in-vehicle head-up display.
  • a display of feeling can be provided.
  • the display device according to the present embodiment is applied as a head-up display that is a vehicle-mounted display device will be described as an example.
  • FIG. 1A is a schematic perspective view showing a configuration of a display device according to the first embodiment.
  • FIG. 1B is a diagram for explaining the relationship between the projection areas of two eyes and two light beams.
  • FIG. 2 is a diagram specifically illustrating the configuration of the display device according to the first embodiment.
  • the display device 10 is a display device that projects a plurality of light beams 112 including video information toward a person 100.
  • the plurality of light beams 112 are two, ie, the first light beam 112a and the second light beam 112b.
  • the display device 10 includes a video projection unit 115 that reflects a plurality of light beams 112 by the image forming unit 715 and projects the light beam 112 toward one eye 101 of the person 100.
  • the image forming unit 715 reflects the plurality of light beams 112 to form an image based on the plurality of light beams 112.
  • the image forming unit 715 is, for example, the windshield 710 of the vehicle 730 (moving body), and has reflectivity and translucency.
  • the person 100 can simultaneously view the video information included in the light beam 112 reflected by the image forming unit 715 and the external information of the external environment transmitted through the image forming unit 715.
  • the image forming unit 715 is only required to have reflectivity, and only needs to reflect the plurality of light beams 112 and form an image based on the plurality of light beams 112.
  • the image forming unit 715 may be included in the video projecting unit 115, and the image forming unit 715 and the video projecting unit 115 may be separate. Hereinafter, a case where the image forming unit 715 is provided separately from the video projection unit 115 will be described.
  • the video information includes a display object 180, for example.
  • the display object 180 is provided in a video that the display device 10 presents to the person 100.
  • various display items such as “arrows” indicating the traveling direction regarding the operation information of the vehicle 730 on which the display device 10 is mounted. It is a display content.
  • the video projection unit 115 projects a plurality of light beams 112 toward the head 105 of the person 100.
  • a plurality of light beams 112 emitted from the image projection unit 115 are reflected by the reflection surface 712 of the image forming unit 715 and enter the head 105.
  • the divergence angle of the light beam 112 is controlled as will be described later, and one of the plurality of light beams 112 is incident on one eye 101 of the person 100. Accordingly, the person 100 can view the video information included in the light flux 112 with one eye 101.
  • the image forming unit 715 that is, the windshield 710 is disposed at a position where the distance from the person 100 is 21.7 cm or more.
  • the sense of depth perceived by the person 100 is enhanced, and the person 100 can perceive that the display object 180 is at a desired depth position.
  • HMD Head-Mounted-Display
  • an image may be presented to one eye (monocular), but the image is perceived by a display unit located very close to the eye (position closer to 21.7 cm). However, it cannot display a high sense of presence with a sense of depth.
  • the display device 10 can be provided, for example, in the vehicle 730, that is, for example, in the back of the dashboard 720 of the vehicle 730 when viewed from the person 100 who is the operator.
  • the video projection unit 115 includes, for example, a video data generation unit 130, a video formation unit 110, and a projection unit 120.
  • the video data generation unit 130 generates a video signal corresponding to the video including the display object 180 and supplies the video signal to the video formation unit 110.
  • the image forming unit 110 for example, various optical switches such as a liquid crystal display (LCD), a DMD (Digital Micromirror Device), or a MEMS (Micro-electro-mechanical System) can be used.
  • the video forming unit 110 forms a video on the screen of the video forming unit 110 based on the video signal supplied from the video data generating unit 130.
  • the projection unit 120 uses various light sources, lenses, mirrors, and optical elements that control the divergence angle (diffusion angle).
  • the projection unit 120 has a light source 121, a taper light guide 122, a light source side lens 123, an image emission side lens 124, an optical path changing mirror 127, and a dividing element 128 along the traveling direction of the light that becomes the light beam 112. And an exit side mirror 126.
  • the light source 121 generates light that becomes the light flux 112.
  • a tapered light guide 122 is disposed between the light source 121 and the exit side mirror 126.
  • a light source side lens 123 is disposed between the taper light guide 122 and the output side mirror 126.
  • An image exit side lens 124 is disposed between the light source side lens 123 and the exit side mirror 126.
  • An optical path changing mirror 127 is disposed between the image exit side lens 124 and the exit side mirror 126.
  • a dividing element 128 is provided between the optical path changing mirror 127 and the exit side mirror 126.
  • the optical path changing mirror 127 can be provided with the function of the image exit side lens 124.
  • the optical path changing mirror 127 can be omitted depending on the arrangement of the light source 121, the tapered light guide 122, the light source side lens 123, and the image emission side lens 124.
  • the image forming unit 110 for example, an LCD is disposed between the light source side lens 123 and the image emission side lens 124.
  • the light source 121 various light sources such as a light emitting diode (LED), a high pressure mercury lamp, a halogen lamp, and a laser can be used.
  • LED light emitting diode
  • a high pressure mercury lamp a high pressure mercury lamp
  • a halogen lamp a laser
  • a laser a laser
  • power consumption can be reduced, and the apparatus can be reduced in weight and size.
  • Each configuration of the video data generation unit 130, the video formation unit 110, and the projection unit 120 can be variously modified.
  • the arrangement of the elements included in the video forming unit 110 and the elements included in the projection unit 120 can be arbitrarily determined.
  • the image forming unit 110 or an element included in the image forming unit 110 may be inserted between the elements included in the projection unit 120.
  • the light emitted from the light source 121 is controlled by the taper light guide 122 so that the divergence angle is within a certain range. Then, the light passes through the image forming unit 110 and becomes the primary light flux 112o of the image including the predetermined display object 180.
  • the primary light beam 112o becomes the first light beam 112a and the second light beam 112b by passing through the splitting element 128. Divergence angles of the plurality of light beams 112 are controlled by various optical elements included in the video projection unit 115.
  • the video projection unit 115 of the present embodiment can first generate the primary light beam 112o and divide the primary light beam 112o to generate a plurality of light beams 112. Therefore, the image forming unit 110 and the projection unit 120 included in the image projecting unit 115 are divided into a part that generates the primary light beam 112o (primary light beam generation unit 140) and the primary light beam 112o, and is directed toward the person 100. And can be divided into portions to be projected (divided projection unit 141).
  • the primary light flux generation unit 140 includes, for example, the light source 121, the taper light guide 122 and the light source side lens 123 included in the projection unit 120, and the image forming unit 110.
  • the division projection unit 141 includes, for example, an image emission side lens 124, an optical path changing mirror 127, a division element 128, and an emission side mirror 126 included in the projection unit 120.
  • the primary light beam 112o from the primary light beam generation unit 140 includes video information.
  • the division projection unit 141 controls the interval between the plurality of light beams 112 and the width of the plurality of light beams.
  • Embodiments of the splitting element 128 included in the primary light flux generation unit 140 and the split projection unit 141 will be described later.
  • the exit side mirror 126 has a concave shape, so that the image of the video information included in the light beam 112 can be enlarged and projected onto the person 100.
  • the plurality of light beams 112 are reflected by the output side mirror 126, then reflected by the image forming unit 715 of the vehicle 730, and enter one eye 101 of the person 100.
  • the person 100 perceives the image 181 (virtual image) of the display object 180 formed at the image forming position 181p via the image forming unit 715.
  • the display device 10 can be used as a head-up display HUD.
  • the exit-side mirror 126 can be movable. For example, the position and angle of the exit-side mirror 126 are adjusted manually or automatically in accordance with the position and movement of the head 105 of the person 100 to obtain a luminous flux. 112 can be appropriately projected onto one eye 101.
  • the display device 10 is a display device that can be viewed with one eye, the spread of the plurality of light beams 112 is controlled so that it is not viewed with both eyes, and any one of the plurality of light beams 112 is projected onto one eye and projected onto both eyes. Not.
  • the size of the first projection area 114a of the first light flux 112a at the position 100p of the person 100 is set to a size that only one eye enters and does not enter both eyes.
  • the size of the second projection region 114b of the second light beam 112b at the position 100p of the person 100 is set to a size that allows only one eye and does not allow both eyes.
  • the first projection area 114 a and the second projection area 114 b are separated from each other, and the distance between them is set to be larger than the distance between both eyes of the person 100.
  • the first light beam 112 a is emitted from the image projection unit 115, and the first light beam 112 a is reflected by the image forming unit 715 and projected toward the person 100.
  • the second light beam 112 b is emitted from the image projection unit 115, and the second light beam 112 a is reflected by the image forming unit 715 and projected toward the person 100.
  • the person 100 perceives the image 181 (virtual image) of the display object 180 formed by the image forming unit 715.
  • the direction of the light beam 112 after the light beam 112 emitted from the display device 10 is reflected by the image forming unit 715 is defined as a Z-axis direction.
  • the direction in which the first light beam 112a and the second light beam 112b face each other is taken as the X-axis direction.
  • the first light beam 112a and the second light beam 112b are separated from each other in the X-axis direction.
  • a direction perpendicular to the Z-axis direction and the X-axis direction is taken as a Y-axis direction.
  • the image forming unit 715 is, for example, the windshield 710 of the vehicle 730 and may be inclined with respect to the vertical axis.
  • the position 100p of the person 100, the position where the light beam 112 is reflected by the image forming unit 715, and the position of the image 181 of the display object 180 are along the Z-axis direction. line up.
  • the person 100 views the image 181 of the display object 180 on the extension in the Z-axis direction of the position where the light beam 112 is reflected by the image forming unit 715.
  • the horizontal direction of the person 100 corresponds to the X-axis direction
  • the vertical direction of the person 100 corresponds to the Y-axis direction.
  • the position 100p of the person 100 is a position in the direction along the light beam 112, that is, a position along the Z-axis direction.
  • FIG. 1B illustrates two light beams 112 at the position 100 p of the person 100.
  • the luminous flux interval Wxs is wider than the interval Wxe between the eyes of the person 100.
  • the first projection area width Wxa that is the length along the X-axis direction of the first projection area 114a and the second projection area width Wxb that is the length along the X-axis direction of the second projection area 114b are:
  • the distance between both eyes of the person 100 is narrower than Wxe.
  • one of the first projection region width Wxa and the second projection region width Wxb only needs to be smaller than the distance Wxe between the eyes of the person 100.
  • both the first projection region width Wxa and the second projection region width Wxb are narrower than the interval Wxe between the eyes of the person 100 will be described.
  • the distance between the plurality of light beams 112 at the position 100 p of the person 100 is wider than the distance Wxe between both eyes of the person 100 and at the position 100 p of the person 100.
  • At least one of the first projection region width Wxa and the second projection region width Wxb, which is the width of the plurality of light beams 112 is narrower than the interval Wxe between the eyes of the person 100. Therefore, both eyes of the person 100 do not enter the first projection area 114a and the second projection area 114b of the plurality of light beams 112 at the same time.
  • the other region of the person 100 is in the other region of the light beams 112, for example, the second projection region 114b.
  • One eye 102 does not enter.
  • the display device 10 it is possible to cause the person 100 to view the display with one eye without causing the person 100 to view the display with both eyes.
  • the person 100 can see the display with the other eye 102, and the person 100 can be prevented from losing sight of the display.
  • the display device 10 it is possible to make it difficult for the eyes to see from the projected region of the luminous flux, and it is possible to present a monocular display that is easy to see.
  • the distance Wxe between the eyes of the person 100 is about 60 mm to about 65 mm, although there is variation depending on the person.
  • interval Wxs) between the some light beams 112 in the position 100p of the person 100 is set to a space
  • the widths of the plurality of light beams 112 at the position 100p of the person 100 for example, the first projection area width Wxa and the second projection area width Wxb are set to be narrower than about 60 mm to 65 mm.
  • the first projection area width Wxa and the second projection area width Wxb are, for example, about 55 mm, and the luminous flux interval Wxs at the position 100p of the person 100 is, for example, about 70 mm.
  • the other eye 102 immediately enters the second light beam 112b. In this case, the person 100 immediately switches from one eye 101 to the other eye 102 to view the display.
  • the other eye 102 does not immediately enter the second light beam 112b.
  • the person 100 does not immediately switch from one eye 101 to the other eye 102 to see the display.
  • the person 100 moves the head 105 and searches for the image 181 of the display object 180.
  • the first light beam 112 a is incident on the one eye 101, and the person 100 can see the image 181 with the one eye 101.
  • the second light beam 112b is incident on the other eye 102 and the display can be switched to the other eye 102.
  • the light flux interval Wxs is small, when the position of the head 105 is shifted from the position of the light flux 112, the person who looks at the image 181 is in contact with one eye 101 and the other eye 102. It is thought that the frequency of switching between will increase.
  • the light flux interval Wxs is large, when the position of the head 105 and the light flux 112 are deviated, it is expected that the person 100 performs an operation to compensate for the deviation, and the eye viewing the image 181 It is expected that the one eye 101 will be maintained frequently.
  • the light beam 112 may be incident on the dominant eye of the person 100, or the light beam 112 may be incident on the non-dominant eye.
  • the eye on which the light beam 112 is not incident views the background image of the outside world, and the eye on which the light beam 112 is incident views the image 181 of the display object 180 together with the background image of the outside world.
  • it is possible to select whether the eye into which the light beam 112 is incident is mainly dominant or non-dominant.
  • the frequency of switching between the one eye 101 and the other eye 102 is increased or the one eye 101 is easily maintained when the position of the head 105 and the position of the light beam 112 are shifted depending on the preference of the person 100 , Can be selected.
  • the light flux interval Wxs can be set according to the preference of the person 100 under conditions wider than the distance Wxe between the eyes of the person 100.
  • the luminous flux interval Wxs be not more than twice the interval Wxe between the eyes of the person 100.
  • the light beam interval Wxs is larger than twice the interval Wxe between both eyes of the person 100, for example, when one eye 101 moves out of the first light beam 112 a, the person 100 moves the head 105, but the other eye 102
  • the ease with which the second light beam 112b is incident on the display device 10 is reduced, and the display device 10 becomes difficult to use.
  • the light flux interval Wxs is less than or equal to twice the interval Wxe between the eyes of the person 100, for example, even when one eye 101 deviates from the first light flux 112a, the second eye 102 is easily connected to the second eye 102.
  • the light beam 112b can be made incident and is easy to use.
  • the vertical width of the light beam 112 for example, the length of the first projection region 114 a and the second projection region 114 b in the Y-axis direction is Optional.
  • the cross-sectional shape of the light beam 112, for example, the pattern shape when the first projection region 114a and the second projection region 114b are viewed from the Z-axis direction may be arbitrary, and an ellipse, a circle, a rectangle, and a corner are curved. Various shapes such as a rectangle can be used.
  • the boundary of each of the plurality of light beams 112 is not limited to the boundary that touches the peripheral portion where the brightness is substantially zero.
  • the boundary can be determined based on the brightness ratio with the relatively low portion.
  • the boundary between the portion with relatively high brightness and the portion with relatively low brightness can be used as the boundary of the light beam 112. In a portion where the brightness is relatively high, the person 100 can see the display, and in a portion where the brightness is relatively low, the person 100 cannot see the display.
  • the display device 10 When the display device 10 is applied to an in-vehicle head-up display, the display device 10 can be used under conditions where the surroundings are bright, for example, when viewing the display during the day, and when the surroundings are dark, such as when viewing the display at night.
  • the brightness of the emitted light beam 112 can be changed.
  • the boundary of the light beam 112 is determined not by the absolute value of the brightness of the light beam 112 but by the relative relationship between the high brightness portion and the low brightness portion in each condition. It is done.
  • the luminous flux interval Wxs is wider than the interval Wxe between the eyes of the person 100, and at least one of the first projection region width Wxa and the second projection region width Wxb, which is the width of the luminous flux 112, is It is set narrower than the distance Wxe between the eyes of the person 100.
  • the boundary of the light beam 112 is determined by the relative ratio of brightness, that is, the brightness of the portion with low brightness / brightness of the portion with high brightness, if the relative ratio is set large.
  • the first projection region width Wxa and the second projection region width Wxb which are the widths of the light beam 112, narrow.
  • the relative ratio is set to be small, the light flux interval Wxs is narrowed, and the first projection region width Wxa and the second projection region width Wxb, which are the width of the light flux 112, are widened.
  • FIG. 3A is a schematic view specifically showing an optical path of the display device according to the first embodiment.
  • FIG. 3B is a diagram for explaining the function of the dividing element of the display device according to the first embodiment.
  • the video projection unit 115 includes a primary light beam generation unit 140 that generates a primary light beam 112o including video information, and a split projection unit 141.
  • the primary light beam generation unit 140 uses the light source 121, the tapered light guide 122, and the light source side lens 123 that have already been described.
  • the split projection unit 141 includes a splitting element 128 that splits the primary light beam 112o into a plurality of light beams 112. Further, an image forming unit 715 that reflects the light beam 112 is provided.
  • the divided projection unit 141 controls the interval between the light beams 112 (light beam interval Wxs) and the width of the light beam 112, for example, the first projection region width Wxa and the second projection region width Wxb, at the human position 100p.
  • An image forming unit 110 is provided between the primary light beam generation unit 140 and the split projection unit 141. As shown in FIG. 3A, a light beam 112 is formed.
  • the dividing element 128 of the video projection unit 115 has a reflection surface 128r and a transmission / reflection surface 128t.
  • the reflecting surface 128r of the dividing element 128 reflects the primary light beam 112o.
  • the transmission / reflection surface 128t is arranged non-parallel to the reflection surface 128r, and has transparency and reflectivity to the primary light beam 112o.
  • the video projection unit 115 has, for example, a triangular prism shape.
  • the shape when the dividing element 128 is cut in a direction perpendicular to the axial direction of the triangular prism is, for example, a right triangle.
  • the surface corresponding to the base of the right triangle is the reflection surface 128r, and the surface corresponding to the hypotenuse of the right triangle is the transmission / reflection surface 128t.
  • a reflective film such as silver is formed on the surface that becomes the reflective surface 128r of the triangular prism made of glass or the like, and a metal oxide film, an organic resin film, or the like is formed on the surface that becomes the transmissive reflective surface 128t.
  • the wavelength of the light beam 112 is, for example, visible light, and the dividing element 128 can be transparent to visible light.
  • the dividing element 128 may be substantially transparent, and various resins other than glass may be used.
  • the transmittance of the transmission / reflection surface 128t is, for example, about 62%, and the reflectance can be, for example, about 38%.
  • the reflectance of the reflecting surface 128r is ideally 100%, and reflects all the incident light.
  • the first light beam 112a has a first projection region 114a at the position 100p of the person 100.
  • the other part of the primary light beam 112o incident on the transmission / reflection surface 128t of the splitting element 128 travels inside the splitting element 128, is reflected by the reflecting surface 128r, passes through the output side mirror 126, and passes through the first mirror 126o.
  • a two-beam 112b is projected onto the person 100.
  • the second light beam 112b has a second projection region 114b at the position 100p of the person 100.
  • the splitting element 128 has the reflecting surface 128r and the transmissive reflecting surface 128t arranged non-parallel to the reflecting surface 128r, so that the primary light beam 112o incident on the splitting element 128 is separated into two light beams. And can be projected onto the person 100 as two light beams 112.
  • the difference in the traveling direction of the two light beams 112 is controlled by the optical characteristics of the dividing element 128 and the arrangement of the dividing element 128 on the optical path.
  • the optical element having the aperture function included in the image projection unit 115 and the magnification ratio of the entire image projection unit 115 (including the image forming unit 715 in some cases) as the entire optical system Due to the characteristics of the optical element having the aperture function included in the image projection unit 115 and the magnification ratio of the entire image projection unit 115 (including the image forming unit 715 in some cases) as the entire optical system, And the first projection region width Wxa and the second projection region width Wxb, which are the widths of the respective light beams 112, are controlled.
  • the image output side lens 124 is used as the control element 129 having an aperture function included in the video projection unit 115.
  • the primary light beam 112o that has passed through the image forming unit 110 enters the splitting element 128 via the image exit side lens 124 and the optical path changing mirror 127. Furthermore, an image of the video information included in the primary light beam 112o is formed on the transmission / reflection surface 128t of the dividing element 128.
  • the transmission / reflection surface 128t is an image forming surface.
  • the size and shape of the cross section of the primary light beam 112o incident on the splitting element 128 from the image exit side lens 124 are controlled.
  • the projection area of the two light beams 112 generated by being split from the primary light beam 112o is also controlled by the image emission side lens 124.
  • the size of the aperture of the control element 129 included in the video projection unit 115 is determined based on the first projection area in consideration of the enlargement ratio as the entire optical system of the video projection unit 115 (including the image forming unit 715 in some cases).
  • the width Wxa and the second projection region width Wxb are set to be smaller than the distance Wxe between the eyes of the person 100.
  • the division projection unit 141 of the video projection unit 115 includes the image emission side lens 124 that is the control element 129 that controls the width of the two light beams 112. On the optical path of the light beam 112, the position of the control element 129 and the position 100p of the person 100 are in an imaging relationship.
  • the position 100p of the person 100 can be a position where the video information included in the light flux 112 is viewed, so that the position along the light flux 112 of the image exit side lens 124 that is the control element 129
  • the position 100p is optically conjugate with each other. Therefore, the position along the light beam 112 of the image exit side lens 124 and the position 100p of the person 100 are in an imaging relationship with each other.
  • FIG. 4 is a diagram for explaining the characteristics of the display device according to the first embodiment.
  • an optical element such as a lens is provided on the optical path between the control element 129 serving as an aperture and the person 100.
  • the position of the optical element the distance d 1 of the distance along the light beam 112 between the control device 129 serving as an aperture to.
  • the position of the optical element the distance along the light beam 112 between the position 100p of the human 100 and the distance d 2.
  • the focal length of the optical element is the focal length f 3
  • a distance along the light beam 112 between the principal point obtained by optically integrating the plurality of optical elements and the control element 129 serving as an aperture is defined as a distance d 1 . Its principal point, to the distance along the light beam 112 between the position 100p of the human 100 and the distance d 2.
  • the focal length obtained by optically integrating the plurality of optical elements is the focal length f k .
  • the distance d 1 , the distance d 2, and the focal length f k are set.
  • the optical elements provided on the optical path between the image exit side lens 124 that is the control element 129 and the person 100 are the optical path changing mirror 127, the splitting element 128, the exit side mirror 126, and the image forming unit. 715.
  • the image of the video information formed by the video forming unit 110 of the video projecting unit 115 is formed at the position of the person 100.
  • the person 100 can view the image 181 formed at the image forming position 181p in a good state in focus.
  • FIG. 5 is a diagram for explaining the characteristics of the dividing elements of the display device according to the first embodiment.
  • the dividing element 128 has a reflective surface 128r and a transmissive reflective surface 128t.
  • An angle formed by the reflection surface 128r and the transmission / reflection surface 128t is defined as an inclination angle ⁇ 1.
  • the refractive index of the medium in the space between the reflective surface 128r and the transmissive reflective surface 128t is defined as a medium refractive index n.
  • the medium refractive index n is, for example, 1.33.
  • the refractive index of the space excluding the dividing element 128 is 1.
  • the first light beam 112a reflected by the transmission / reflection surface 128t of the division element 128 has a first emission angle ⁇ ja. It is assumed that the second light beam 112b that is emitted at ⁇ and reflected by the reflecting surface 128r of the splitting element 128 is emitted at the second emission angle ⁇ jb.
  • the output angle difference ⁇ which is the angle formed by the direction of the first light beam 112a and the direction of the second light beam 112b, that is, the absolute value of the difference between the first output angle ⁇ ja and the second output angle ⁇ jb is the inclination angle of the splitting element 128.
  • the medium refractive index n, and the incident angle ⁇ i the relationship between these values is expressed by the following equation (1).
  • FIG. 6A and 6B are schematic views illustrating the optical path of the display device according to the first embodiment.
  • FIG. 6A shows the optical paths of the first and second light beams 112a and 112b when the emission side mirror 126 of FIG. 2 is a plane mirror.
  • FIG. 6B shows the optical paths of the first and second light beams 112a and 112b when the emission side mirror 126 of FIG. 2 is a concave mirror.
  • 6A and 6B show a state in which the second light beam 112b is incident on the incident position IP of the exit side mirror 126.
  • the windshield 710 image forming unit 715
  • the windshield 710 image forming unit 715
  • the exit-side mirror 126 is a plane mirror
  • the direction of the first light beam 112a that is, the direction of the central light beam of the first light beam 112a
  • the second The angle between the direction of the light beam 112b, that is, the direction of the central light beam of the second light beam 112b is the above-described emission angle difference ⁇
  • the inclination angle ⁇ 1 of the splitting element 128 expressed by the above equation (1) and the medium refraction.
  • the normal angle ⁇ r varies depending on the incident positions of the first and second light beams 112a and 112b on the exit-side mirror 126.
  • the position of the center of the first projection area 114a of the first light flux 112 at the position 100p of the person 100, the position of the splitting element 128, and the center of the curved surface of the concave mirror 126 are arranged on a straight line, and further, the first projection area 114a.
  • ⁇ r sin ⁇ 1 (x IP / r) (2) Using this normal angle ⁇ r, at the position 100p of the person 100, the direction of the first light beam 112a, that is, the direction of the central light beam of the first light beam 112a, and the direction of the second light beam 112b, that is, the direction of the second light beam 112b. The angle formed with the direction of the central ray is ( ⁇ -2 ⁇ r). At the position 100p of the person 100, the center-of-beam distance Wxsc between the center of the first projection region 114a and the center of the second projection region 114b is the inclination angle ⁇ 1, the medium refractive index n of the splitting element 128, and the exit side mirror. 126 depends on the incident position IP of the second light beam 112 b at 126 and the radius of curvature r of the exit side mirror 126.
  • the inclination angle ⁇ 1 of the splitting element 128 can be appropriately set according to the magnification of the entire optical system including the desired center-of-beam distance Wxsc, the desired position 100p of the person 100, and the radius of curvature r of the exit side mirror 126, for example. .
  • FIG. 7 is a diagram for explaining the function of the dividing element used in another display device according to the first embodiment.
  • the dividing element 128 included in the video projection unit 115 is not a triangular prism shape like the dividing element shown in FIG. 3B.
  • the splitting element 128 is disposed non-parallel to the reflecting surface 128r having a reflecting surface 128r that reflects the primary light beam 112o, and is transmissive and reflective to the primary light beam 112o.
  • a transmissive reflecting plate 128ta having a reflecting surface 128t.
  • the reflective surface 128r and the transmissive reflective surface 128t included in the dividing element 128 are provided as separate bodies, whereby the inclination angle ⁇ 1 formed by the reflective surface 128r and the transmissive reflective surface 128t can be made variable.
  • the tilt angle ⁇ 1 variable By making the tilt angle ⁇ 1 variable, the angle formed by the first and younger brothers' light beams 112a and 112b (the output angle difference ⁇ ) can be made variable, and the first and younger brother's two light beams 112a at the position 100p of the person 100 can be made.
  • the light beam interval Wxs between 112b can be made variable, and a desired light beam interval can be set.
  • FIG. 8 is a schematic diagram showing a configuration of another display device according to the first embodiment. As shown in FIG. 8, in the display device 10b, an aperture 125b is used as the control element 129 included in the video projection unit 115.
  • an image emission side lens 124 is used as an optical element (control element 129) functioning as an aperture included in the video projection unit 115.
  • the aperture 125b is used as the optical element (control element 129).
  • the primary light beam 112o that has passed through the image exit side lens 124 enters the aperture exit side lens 124a through the aperture 125b.
  • the incident primary light beam 112 o is incident on the splitting element 128 through the optical path changing mirror 127. Further, a plurality of light beams 112 are generated by the dividing element 128, and the generated plurality of light beams 112 are projected toward the person 100.
  • an aperture having a variable opening size can be used as the aperture 125b.
  • the width of the plurality of light beams 112 at the position of the person 100 can be made variable.
  • FIG. 9 is a diagram specifically showing an optical path of the display device of FIG. In FIG. 9, one of the plurality of light beams is a first light beam 112a.
  • the position along the plurality of light beams 112 of the aperture 125b and the position 100p of the person 100 are optically conjugate with each other.
  • the relationship between the surface and the light beam is the same at the position along the light beam 112 of the aperture 125 b and the position 100 p of the person 100.
  • the position of the image forming surface 128i of the light beam 112 (in this case, the position of the transmission / reflection surface 128t of the dividing element 128) and the image forming position 181p of the image 181 of the display object 180 in FIG. Is done.
  • the position of the image forming surface 128i of the light beam 112 and the image forming position 181p are in an imaging relationship, and the position of the image forming surface 128i of the light beam 112 and the image of the image forming position 181p are substantially the same. Can be considered.
  • FIG. 10 is a diagram for explaining the relationship between the eyes and the projection areas of the two light beams in the different display devices according to the first embodiment.
  • the first light flux 112 a and the second light flux 112 b are projected toward the person 100.
  • the first projection area width Wxa of the first light beam 112a at the position of the person is narrower than the distance Wxe between the eyes of the person 100, but the second projection area width Wxb of the second light beam 112b at the position of the person. Is wider than the distance Wxe between human eyes. Also in this case, the distance between the first light beam 112a and the second light beam 112b (light beam interval Wxs) is wider than the interval Wxe between the human eyes. Except for these relationships, the display devices 10 and 10b shown in FIGS. 2 and 8 may be used.
  • the size of the aperture 125b is partially changed, or the surface state or surface shape of the dividing element 128 is partially changed. This can be done by changing the distance between the dividing element 128 and the exit side mirror 126.
  • the display device 11 having such a configuration, by setting the first projection region 114a to one eye (for example, one eye 101) viewed by a person, the one eye 101 is disengaged from the first projection region 114a. Little happens. When one person's head 101 moves greatly and one eye 101 deviates from the 1st projection field 114a, one eye 102 which is the other eye enters in the 2nd projection field 114b, and a person does not lose sight of display. . As described above, the second projection is performed such that the boundary of the second projection area 114b opposite to the first projection area 114a (the right boundary of the second projection area 114b in FIG. 10) is separated from the first projection area 114a. Even if the second projection region width Wxb of the region 114b is enlarged, the ease of viewing with one eye of a person is not significantly reduced.
  • the display content can be arranged at an arbitrary depth position of the background image and perceived by the person.
  • both eyes (one eye 101 and one eye 102) of the person may enter the second projection area 114b.
  • Such a situation is a special state in which the initially set one eye 101 moves the head from the situation where it enters the first projection area 114a. In this case, not only the display is seen with one eye, It may be more convenient to keep the display visible with both eyes.
  • the display device When moving the head greatly, it is presumed that the display device is not in a normal use state but a special use state such as an accident in which the visual acuity of one eye suddenly decreases.
  • a display with high safety can be provided when applied to a head-up display for in-vehicle use.
  • the widths of the first and second light beams 112a and 112b can be made variable so that the display can be switched between viewing with one eye or viewing with both eyes as necessary.
  • the distance between the first and second light beams 112a and 112b at the position of the person is set wider than the distance Wxe between the eyes of the person, and the first and second light beams 112a at the position of the person.
  • 112b (the first projection area width Wxa and the second projection area width Wxb) may be set to be narrower than the distance Wxe between the eyes of the human.
  • the light flux interval Wxs is set narrower than the interval Wxe between the eyes or the widths of the first and second light beams 112a and 112b at the position of the person (the first projection region width Wxa and the second projection width). It is only necessary that the projection region width Wxb) can be set to be narrower than the distance Wxe between the eyes.
  • FIG. 11 is a diagram for explaining the relationship between the eyes and the projection areas of the three light beams in yet another display device according to the first embodiment.
  • the display device 12 projects three light beams including video information, that is, a first light beam 112a, a second light beam 112b, and a third light beam 112c toward a person.
  • the first projection area 114a is disposed between the second projection area 114b and the third projection area 114c.
  • the distance between the first to third light beams 112a to 112c at the human position is wider than the distance Wxe between the human eyes
  • the widths of the plurality of light beams 112 at the human position first At least one of the projection area width Wxa, the second projection area width Wxb, and the third projection area width Wxc) is narrower than the interval Wxe between the eyes of the person.
  • the above three light beams are provided.
  • a human desired eye for example, a dominant eye
  • the human head is positioned in either the left or right direction.
  • 1 eye 101 or the other eye 102 can be put in the second projection region 114b or the third projection region 114c arranged in the left-right direction even when the eye is moved, and the eye to be seen projects any light flux. More difficult to get out of the area.
  • the display device 12 it is possible to present a monocular display that is easy to see because it is difficult for the eyes to see from the projected region of the luminous flux.
  • the width of the first light beam 112a disposed at the center is preferably set to be narrower than the interval Wxe between the eyes of the human.
  • another split is performed on one of the optical paths of the first and second light beams 112a and 112b generated by the splitting element that splits the primary light beam.
  • An element may be arranged. With such a configuration, one of the first light beam 112a and the second light beam 112b can be further divided into two to form three or more light beams.
  • FIG. 12 is a schematic diagram illustrating a configuration of still another display device according to the first embodiment.
  • the specific configuration of the video projection unit 115a is different from that of the display device 10 in FIG.
  • the splitting element 128a included in the video projection unit 115a is a transmissive type, and the primary light beam 112o is incident on one main surface of the splitting element 128a and the other main surface facing this one main surface. Exits from.
  • the dividing element 128a includes a plurality of interfaces arranged non-parallel to each other. At least one of the plurality of interfaces is an interface having transparency and reflectivity. By disposing the plurality of interfaces non-parallel, the primary light beam 112o passing through the plurality of interfaces can be divided into the plurality of light beams 112.
  • the light emitted from the light source 121 passes through the image forming unit 110 and becomes a primary light beam 112 o including image information.
  • the primary light beam 112o enters the image exit side lens 124, and then enters the splitting element 128a via the aperture 125b and the aperture exit side lens 124a. Then, a plurality of light beams 112 including the light beams 112a and 122b are generated by the dividing element 128a.
  • the display device 13 having the transmission type dividing element 128 also makes it difficult for the eyes to see from the projection region of the luminous flux, and it is possible to present a monocular display that is easy to see.
  • FIG. 13A is an exploded view showing a dividing element 128a used in the display device 13 shown in FIG.
  • FIG. 13C is an exploded view showing another splitting element that can be used in the display device 13 shown in FIG.
  • FIG. 13B and FIG. 13D are views showing the assembled state of the dividing elements of FIG. 13A and FIG. 13C, respectively.
  • the dividing element 128a includes a first transmission / reflection element 310 and a second transmission / reflection element 320.
  • the first transmission / reflection element 310 includes a first triangular prism element 311 and a second triangular prism element 312.
  • a first transmission / reflection film 311 t having transparency and reflectivity is formed.
  • the first transmission / reflection film 311t of the first triangular prism element 311 is disposed so as to face and contact the slope of the second triangular prism element 312.
  • the second transmission / reflection element 320 includes a third triangular prism element 313 and a fourth triangular prism element 314. On the slope of the third triangular prism element 313, a second transmission / reflection film 313t having transparency and reflectivity is formed. As shown in FIG. 13B, the second transmission / reflection film 313t of the third triangular prism element 313 is disposed so as to face and contact the slope of the fourth triangular prism element 314.
  • the first transmission / reflection element 310 and the second transmission / reflection element 320 are in contact with each other such that the first transmission / reflection film 311t and the second transmission / reflection film 313t are not parallel to each other. Placed in.
  • a metal or dielectric thin film is used for the first transmission / reflection film 311t and the second transmission / reflection film 313t.
  • Such a thin film is formed on the slopes of the first triangular prism element 311 and the third triangular prism element 313 by a deposition method such as vapor deposition or sputtering, for example.
  • the light is reflected by the one transmission reflection film 311t, becomes the second light beam 112b, and is emitted from the splitting element 128a.
  • the primary light beam 112o is divided into a first light beam 112a and a second light beam 112b.
  • first triangular prism element 311 includes a first triangular prism element 311, a third triangular prism element 313, and a fifth triangular prism element 315.
  • first triangular prism element 311 On the slope of the first triangular prism element 311, a first transmission / reflection film 311 t having transparency and reflectivity is formed.
  • second transmission / reflection film 313t On the slope of the third triangular prism element 313, a second transmission / reflection film 313t having transparency and reflectivity is formed.
  • the slope of the first triangular prism element 311 and the slope of the third triangular prism element 313 are not parallel to each other.
  • the first triangular prism element 311 and the third triangular prism element 313 are arranged so that the first transmissive reflective film 311t and the second transmissive reflective film 313t are non-parallel.
  • the fifth triangular prism element 315 has a slope parallel to the slope of the first triangular prism element 311 and a slope parallel to the slope of the third triangular prism element 313.
  • the fifth triangular prism element 315 includes the slopes of the fifth triangular prism element 315, the first triangular prism element 311, and the third triangular prism element between the first triangular prism element 311 and the third triangular prism element 313. It arrange
  • the primary light beam 112o when the primary light beam 112o is incident on the bottom surface of the first triangular prism element 311 of the splitting element 128b, a part of the primary light beam 112o is converted into the first transmission / reflection film 311t and the second light beam 112o.
  • the light passes through the transmission / reflection film 313t, becomes the first light beam 112a, and is emitted from the splitting element 128b.
  • Another part of the primary light beam 112o is reflected by the second transmission / reflection film 313t, reaches the first transmission / reflection film 311t via the fifth triangular prism element 315, and is reflected by the first transmission / reflection film 311t.
  • the second light flux 112b is emitted from the splitting element 128b.
  • the primary light beam 112o is divided into a first light beam 112a and a second light beam 112b.
  • the refractive indexes of the first triangular prism element 311, the second triangular prism element 312, the third triangular prism element 313, the fourth triangular prism element 314, and the fifth triangular prism element 315 may be the same or different from each other.
  • FIG. 14 is a schematic diagram illustrating a configuration of a further different display device according to the first embodiment.
  • a lenticular sheet 125l is used as the control element 129 of the video projection unit 115.
  • the lenticular sheet 125l is arranged on the emission side of the transmission type dividing element 128a, that is, on the human side of the dividing element 128a on the optical path.
  • the light emitted from the light source 121 passes through the image forming unit 110 to become a primary light beam 112o including image information, and further enters the splitting element 128a through the image emitting side lens 124b.
  • a plurality of light beams 112 are generated by the splitting element 128a, and the generated light beams 112 are incident on the lenticular sheet 125l, whereby the divergence angles of the plurality of light beams 112 are controlled and projected toward a person.
  • the eye to be seen is not easily deviated from the projection region of the luminous flux, and is easy to see. Display can be presented.
  • FIG. 15A and FIG. 15B are schematic views illustrating the configuration of still another display device according to the first embodiment.
  • the display device 14 is provided with a plurality of light sources and a plurality of image forming units.
  • one primary light beam 112 o is divided into a plurality of light beams 112 by the dividing element 128.
  • the primary light beam 112o is not divided, but a plurality of light beams 112 are directly generated from the plurality of light sources.
  • the image projection unit 115 of the display device 14 includes, as a first optical system, a first primary light beam generation unit including a light source 121, a taper light guide 122, and a light source side lens 123, a first image formation unit 110, and the like. And a first projection unit including an image exit side lens 124, an aperture 125b, and an aperture exit side lens 124a.
  • the image projection unit 115 includes, as a second optical system, a second primary light beam generation unit including a light source 121ay, a tapered light guide 122ay, and a light source side lens 123ay, a second image formation unit 110ay, and an image.
  • the second projection unit includes an exit side lens 124y, an aperture 125by, and an aperture exit side lens 124ay.
  • the image projection unit 115 is provided with one exit side mirror 126.
  • the video data generation unit 130 of the video projection unit 115 supplies video data to the first video formation unit 110 and the second video formation unit 110ay.
  • the video projection unit 115 includes a first primary light flux generation unit including a light source 121, a tapered light guide 122, and a light source side lens 123 as a first optical system. And a first projection unit including an image exit side lens 124, an aperture 125b, and an aperture exit side lens 124a.
  • the video projection unit 115 includes, as a second optical system, a second primary light beam generation unit including a light source 121ay, a tapered light guide 122ay, and a light source side lens 123ay, an image emission side lens 124y, an aperture 125by, and an aperture.
  • a second projection unit including the emission side lens 124ay is included.
  • the image forming unit 110 is provided between the light source side lens 123 and the image emission side lens 124 and between the light source side lens 123ay and the image emission side lens 124ay.
  • the image forming unit 110 is shared by the first optical system and the second optical system, and two light beams pass through two regions of the image forming unit 110 to become two light beams 112.
  • At least one image forming unit 110 may be provided in the image projecting unit 115.
  • the display devices 14 and 14a having the configuration shown in FIGS. 15A and 15B can also project a plurality of light beams 112 including video information toward a person, and the first optical system and the second optical system can be projected.
  • the optical axis of the optical system for example, the interval between the plurality of light beams 112 at the human position (light beam interval Wxs) is wider than the distance Wxe between the human eyes, and the width of the plurality of light beams 112 at the human position, for example, At least one of the first projection area width Wxa and the second projection area width Wxb can be set to be narrower than the distance Wxe between both eyes of the human, thereby making it difficult for the eyes to see from the projection area of the light flux, Easy-to-read monocular display can be presented.
  • FIG. 16 is a schematic view illustrating the configuration of a display device according to the second embodiment.
  • the video projection unit 115 of the display device 20 includes an image forming unit 715 that forms an image based on the plurality of light beams 112.
  • the image forming unit 715 only needs to reflect a plurality of light beams 112 to form an image, and a transparent glass plate or a transparent resin plate having translucency and reflectivity can be used. May be a so-called mirror which is not translucent and substantially reflective.
  • a person can see the image formed by the image forming unit 715 with one eye, and the depth feeling and the three-dimensional feeling are enhanced, and a display with a high sense of reality can be provided.
  • the display device 20 is applied to an amusement application such as a game, the effect is particularly effective.
  • the distance between the plurality of light beams 112 at the position 100p of the person 100 is wider than the distance Wxe between the eyes of the person 100, and the width of the plurality of light beams 112 at the position 100p of the person 100, for example, At least one of the first projection area width Wxa and the second projection area width Wxb can be set to be narrower than the interval Wxe between the eyes of the person 100, thereby making it difficult for the eyes to see to be separated from the projection area of the luminous flux, Easy-to-read monocular display can be presented.
  • the distance between the image forming unit 715 and the eyes of the person 100 on the optical path of the plurality of light beams 112 is 21.7 cm or more. Thereby, the sense of depth perceived by the person 100 is enhanced, and the display object 180 can be perceived at a desired depth position.
  • FIG. 17A and FIG. 17B are flowcharts illustrating the display method according to the embodiment, respectively.
  • a plurality of light beams 112 that include video information and that have a mutual interval wider than the interval Wxe between both eyes and a width smaller than the interval Wxe between both eyes. Is projected toward the person 100 (step S101). This corresponds to the display method described with reference to FIG. 1B, FIG. 10, or FIG.
  • the person 100 can see the display with one eye, and at that time, the eye to be seen can hardly come off from the projection region of the luminous flux, and an easy-to-see monocular display can be presented.
  • a primary light beam 112o including video information is generated (step S110). As described with reference to FIGS. 2 and 8, etc., the primary light beam 112o is divided into a plurality of light beams to generate a plurality of light beams 112 including video information. As shown in FIG. 1B, FIG. 10, or FIG.
  • the plurality of light beams 112 are controlled so that the interval between the plurality of light beams 112 is wider than the interval Wxe between both eyes and the width of the plurality of light beams 112 is narrower than the interval Wxe between both eyes.
  • 112 is projected toward the person 100 (step S120).
  • the splitting elements 128, 128a and 128b described above can be used for splitting the primary light beam 112o.
  • the second display method by dividing the primary light beam 112o to generate a plurality of light beams 112, the optical system is simplified and the apparatus can be miniaturized. This method also makes it difficult for the eyes to see from the projected region of the luminous flux and presents a monocular display that is easy to see.
  • each element such as a video projection unit, a video data generation unit, a video formation unit, a projection unit, a primary light beam generation unit, a division projection unit, a control element, and a division element constituting the display device, Those skilled in the art can appropriately select from a known range.

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Abstract

La présente invention concerne un dispositif d'affichage pour la projection d'une pluralité de flux lumineux comprenant une information d'image à une personne. La distance entre la pluralité de flux lumineux à la position de la personne peut être établie pour être plus large que la distance entre les deux yeux de la personne, et au moins une des largeurs de la pluralité de flux lumineux à la position de la personne peut être établie pour être plus étroite que la distance entre les deux yeux de la personne.
PCT/JP2010/005635 2009-09-16 2010-09-15 Dispositif d'affichage pour information d'image WO2011033766A1 (fr)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012047893A (ja) * 2010-08-25 2012-03-08 Toshiba Corp 表示装置及び表示方法
JP2013068651A (ja) * 2011-09-20 2013-04-18 Tohoku Univ 画像表示装置
US8928983B2 (en) 2012-01-31 2015-01-06 Kabushiki Kaisha Toshiba Display apparatus, moving body, and method for mounting display apparatus
US8970453B2 (en) 2009-12-08 2015-03-03 Kabushiki Kaisha Toshiba Display apparatus, display method, and vehicle
CN106605166A (zh) * 2014-08-20 2017-04-26 日本精机株式会社 投影装置和平视显示装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0868630A (ja) * 1994-08-29 1996-03-12 Nissan Motor Co Ltd 車両用視線方向計測装置およびこれに用いる画像入力装置
JPH08146348A (ja) * 1994-11-22 1996-06-07 Hitachi Ltd 単眼観視距離感調節式ディスプレイ装置
WO1997034182A1 (fr) * 1996-03-11 1997-09-18 Seiko Epson Corporation Affichage porte sur la tete
JP2003087822A (ja) * 2001-05-14 2003-03-20 Eastman Kodak Co 適応型自動立体表示システム
JP2007272350A (ja) * 2006-03-30 2007-10-18 Honda Motor Co Ltd 車両用運転支援装置
JP2009128565A (ja) * 2007-11-22 2009-06-11 Toshiba Corp 表示装置、表示方法及びヘッドアップディスプレイ
JP2009244355A (ja) * 2008-03-28 2009-10-22 Toshiba Corp 画像表示装置及び画像表示方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0868630A (ja) * 1994-08-29 1996-03-12 Nissan Motor Co Ltd 車両用視線方向計測装置およびこれに用いる画像入力装置
JPH08146348A (ja) * 1994-11-22 1996-06-07 Hitachi Ltd 単眼観視距離感調節式ディスプレイ装置
WO1997034182A1 (fr) * 1996-03-11 1997-09-18 Seiko Epson Corporation Affichage porte sur la tete
JP2003087822A (ja) * 2001-05-14 2003-03-20 Eastman Kodak Co 適応型自動立体表示システム
JP2007272350A (ja) * 2006-03-30 2007-10-18 Honda Motor Co Ltd 車両用運転支援装置
JP2009128565A (ja) * 2007-11-22 2009-06-11 Toshiba Corp 表示装置、表示方法及びヘッドアップディスプレイ
JP2009244355A (ja) * 2008-03-28 2009-10-22 Toshiba Corp 画像表示装置及び画像表示方法

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8970453B2 (en) 2009-12-08 2015-03-03 Kabushiki Kaisha Toshiba Display apparatus, display method, and vehicle
JP2012047893A (ja) * 2010-08-25 2012-03-08 Toshiba Corp 表示装置及び表示方法
JP2013068651A (ja) * 2011-09-20 2013-04-18 Tohoku Univ 画像表示装置
US8928983B2 (en) 2012-01-31 2015-01-06 Kabushiki Kaisha Toshiba Display apparatus, moving body, and method for mounting display apparatus
CN106605166A (zh) * 2014-08-20 2017-04-26 日本精机株式会社 投影装置和平视显示装置
EP3185061A4 (fr) * 2014-08-20 2018-01-10 Nippon Seiki Co., Ltd. Dispositif de projection et dispositif d'affichage tête haute

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