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DISPLAY DEVICE AND METHOD FOR DISPLAYING AERIAL IMAGE

外国特許コード F180009381
整理番号 (S2016-1109-N0)
掲載日 2018年4月19日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2017JP031448
国際公開番号 WO 2018043673
国際出願日 平成29年8月31日(2017.8.31)
国際公開日 平成30年3月8日(2018.3.8)
優先権データ
  • 特願2016-170363 (2016.8.31) JP
発明の名称 (英語) DISPLAY DEVICE AND METHOD FOR DISPLAYING AERIAL IMAGE
発明の概要(英語) A display device (1A) as an embodiment of the present invention is provided with a light source (2), a light branching part (40) for causing first emission light (L1) emitted from the light source to be surface-reflected as first reflected light (L2), a retroreflection part (6) for retroreflecting the first reflected light toward the light branching part as retroreflected light (L3), and a first light shielding part (8) for shielding surface-reflected light (L4) surface-reflected by the retroreflection part toward an observation position of the retroreflected light. The light branching part transmits at least a portion of the retroreflected light.
特許請求の範囲(英語) [claim1]
1. A light source, wherein the first emitted light emitted from the light source at least a portion of the surface of the first reflected light as reflected by the optical branching unit and to, at least a portion of the first reflected light as the retro-reflected light toward the optical branching unit to the retro-reflecting the first retro-reflective portion, wherein the retro-reflected light toward the viewing position of the retro-reflecting said first light reflection surface is reflected by the light-shielding portion and the first block, and, wherein the optical branching unit, the first retro-reflective portion wherein the retro-reflected by the retro-reflected light to pass through at least a portion of the display device.
[claim2]
2. Wherein said light source is, in the form of plates with one plate surface of the display unit are arranged, the light branching unit is, is in the form of plates, at least a portion of the first light emitted from the first surface as a reflected light beam reflected to one plate surface of the light-splitting face to have, on the display unit of said one plate surface of the light-splitting face are opposed to each other and, wherein the end portion and the other one of the display unit toward the end section of the display unit in accordance with said one plate surface of the light-splitting face and spaced a large distance, the first retro-reflective portion, which is formed into a plate shape, wherein at least a portion of the first reflected light of the retro-reflected light retroreflected by the retroreflective as one plate surface of a reflective surface, said retro-reflecting surface of the light-splitting face and an opposed, wherein one end of the first retro-reflective portion on the display unit of an optical branching unit is a side opposite to the side connected to the end, the first retro-reflective portion of the one end portion and the other end of said of an optical branching unit in the direction toward the end portion of the display units so as to decrease the separation distance of the first retro-reflective portion of the display device according to claim 1 is curved.
[claim3]
3. Wherein the first light-blocking section is, is formed into a plate shape, wherein the light-splitting face of an optical branching unit disposed on the side of said light-splitting face perpendicular to the surface and also arranged, the light-shielding portion of the first end of the optical branching section side, wherein the display unit of the optical branching section side opposite to the side of an optical branching unit and an edge portion of the first retro-reflective portion on the side of the first virtual line connecting the end portion is disposed on the display device according to claim 2.
[claim4]
4. The first light blocking portions, is formed into a plate shape, on the display unit of the first retro-reflective portion arranged along the side opposite to the side, wherein light from the light-splitting face of said optical branching unit branching along the direction perpendicular to a surface on the display unit so as to approach the display device according to claim 3 or claim 2 protrudes.
[claim5]
5. Wherein said light source is, in the form of plates of one of the display and a plurality of the surface of the plate, the light branching unit is, formed into a plate shape, wherein at least a portion of the first light emitted from the first surface as a reflected light beam reflected to one plate surface of the light-splitting face to have, on the display unit of said one plate surface of the light-splitting face are opposed to each other and, wherein one end of the display unit in the direction toward the second end of said one plate surface of the display unit and the light-splitting face spaced a large distance, the first retro-reflective portion, which is formed into a plate shape, said light-splitting face in a direction perpendicular to and disposed along, at least a portion of the first light reflected by the retro-reflected light retroreflected by the retroreflective as one plate surface of the reflective surface has, wherein said retro-reflecting surface of the light-splitting face side oriented to the, first light-shielding sections, are formed into a plate shape, the light-shielding portion of said first optical branching unit-side end section, the first retro-reflective portion of said optical branching section side from an end portion toward the light source, wherein the light-splitting face extending in a direction parallel to a second virtual line is disposed on the display device according to claim 1.
[claim6]
6. Wherein said light source is, formed into a plate shape to one plate surface of the display portion arranged in a plurality, wherein the optical branching unit, which is formed into a plate shape, wherein at least a portion of the first emitted light as first reflected light to the light-splitting face is reflected by the surface of one plate surface of the has, on the display unit of said one plate surface of the light-splitting face are opposed to each other and, wherein from one end portion of the display unit in the direction toward the other end portion on the display unit of said one plate surface of the light-splitting face spaced a large distance, the first retro-reflective portion, which is formed into a plate shape, wherein the optical branching section away from the light-splitting face according to a direction perpendicular to the side opposite to the side on the display unit so as to be separated at a certain ratio and are arranged in, wherein at least a portion of the first reflected light as the retro-reflected light to the retro-reflected to one plate surface of the retroreflective surface has, wherein the light-splitting face said retro-reflecting surface and the facing side, the light-shielding portion of the first end of the optical branching section side, the first retro-reflective portion of said optical branching section side toward the light source from an end portion of the retroreflective surface extending along a direction perpendicular to the third virtual lines arranged on the display device according to claim 1.
[claim7]
7. Wherein said light source is, in the form of plates with one plate surface of the display unit are arranged, the light branching unit is, is formed into a plate shape, wherein at least a portion of the first light emitted from the first reflecting surface as the reflection light to the light-splitting face has one plate surface of, said one plate surface of the display unit of the light-splitting face and are opposed to each other and, wherein the end portion and the other one of the display unit toward the end section of the display unit according to one plate surface of the light-splitting face and spaced a large distance, further comprising a second retro-reflective portion, the second retro-reflective portion, which is formed into a plate shape, wherein the optical branching section away from the light-splitting face according to a direction perpendicular to the opposite side to the side of the display units so as to be separated at a certain ratio and are arranged in, wherein at least a portion of the first reflected light retroreflected by the retroreflective as the retro-reflected light to one plate surface of a reflective surface, the second retro-reflective portion of the retro-reflecting surface on the display unit of the one plate surface of the light-splitting face and oppose and, wherein the second retro-reflective portion of the light-splitting face from the retro-reflecting surface in a direction parallel to the light source side along the protruding portion and wherein said second retroreflective portion a portion of the reflective surface at a predetermined interval along a plurality of arranged with, the first retro-reflective portion, to one plate surface of retro-reflective surface, said protrusions provided on the side of the light-splitting face of, said first light-shielding sections, the protruding portion of the light-splitting face side opposite to the side surface of the display device according to claim 1 provided.
[claim8]
8. Wherein said light source is, in the form of plates with one plate surface of the display unit are arranged, the light branching unit is, is formed into a plate shape, wherein at least a portion of the first of the emitted light is reflected on the surface as a first reflected light to the light-splitting face to have one plate surface of, on the display unit of the one plate surface of the light-splitting face and are opposed to each other and, wherein from one end portion of the display unit in the direction toward the other end portion on the display unit of said one plate surface of the light-splitting face spaced a large distance, the first retro-reflective portion, which is formed into a plate shape, at least a portion of the first reflected light as the retro-reflected light retroreflected by the retroreflective has one plate surface of the reflective surface, the first retro-reflective portion at one end of the light-splitting face is in contact with the, wherein the one end portion and the other end portion on the display unit in accordance with R′a arranged so as to approach, wherein said retro-reflecting surface of the light-splitting face side oriented to, the first light-blocking section is, the first retro-reflective portion of the retro-reflective surface on the opposite side of the display device according to claim 1 provided on the surface of the plate.
[claim9]
9. Wherein the retro-reflected light from the light source is directly irradiated to an observation position of light coming directly irradiated the light-shielding portion further comprises a second, wherein the optical branching unit, wherein the transmitting at least a portion of the light is directly irradiated to any one of claims claim 7 claim 1 from the display device.
[claim10]
10. The second light-shielding sections, wherein the light source of an optical branching unit is directly irradiated to a side opposite from the side of the light is transmitted through the display device according to claim 8 are provided in the region.
[claim11]
11. A light source, light emitted from the light source is at least a portion of the first emitted light is reflected on the surface as a first reflected light and an optical branching unit to, at least a portion of the first light reflected by the retro-reflected light toward the optical branching unit as a retro-reflecting the first retro-reflective portion, wherein the retro-reflected light from the light source is directly irradiated to the observation position of the second light-shielding portion and light coming directly irradiated, is provided, wherein the light branching unit is, wherein the first retro-reflective portion wherein the retro-reflected by the retro-reflected light to pass through at least a portion of the display device.
[claim12]
12. Is in the form of plates, one plate surface of the display unit and the light source is provided, which is formed into a plate shape, wherein a first of the emitted light is emitted from the light source is emitted from the light emission axis of the first direction and are arranged on, on the display unit of said one plate surface of the surface of the plate so as to be inclined one with respect to the arrangement, at least a portion of the emitted light is first transmitted light as first transmitted light branching unit, which is formed into a plate shape, wherein the optical branching unit that has been transmitted through at least a portion of the first transmitted light as the retro-reflected light retroreflected by the retroreflective surface to have one plate surface of, the light branching unit interposed therebetween facing the display, and said retro-reflective surface with respect to a surface of one of the display so as to be parallel to the light emission axis disposed on the first the first retro-reflective portion and, which is formed into a plate shape, the first retro-reflective portion of an optical branching unit to the side of an optical branching unit disposed along the plate surface of one of, the first retro-reflective portion is retro-reflected by the retro-reflected light reflected by the surface and the image forming section and forming an image, and, wherein the light branching unit is, wherein at least a portion of the retro-reflected light reflected by the light-splitting face to the surface of said one plate surface of a display device.
[claim13]
13. Is in the form of plates, one plate surface of the display unit and the light source is provided, which is formed into a plate shape, the light emitted from the light source emitting a first light-emitting direction in the light emission axis of the first and disposed on, at least a portion of the first light emitted from the first surface as a reflected light reflected by the light-splitting face to have said one plate surface of the, wherein the one of the display unit faces the light-splitting face with respect to the plate surface of the inclined and disposed between the optical branching unit, which is formed into a plate shape, said light-splitting face to the surface by the first reflected-light reflected by the retro-reflected light at least a portion of the retro-reflecting surface is a retro-reflecting as one has to the plate surface, the light-splitting face wherein the retro-reflecting surface is inclined with respect to the counter and, and the display unit to one plate surface of the retro-reflecting surface with respect to the vertical so that said first reflected light on the light emission axis in a second direction of travel of the disposed first retro-reflective portion, which is formed into a plate shape, wherein the retro-reflecting said first optical branching unit side opposite to the side portion of said optical branching unit disposed along the plate surface of one of, the first retro-reflective portion is retro-reflected by the retro-reflected light to pass therethrough, and wherein the emitted light from the first imaging unit and the imaging device, and, wherein the optical branching unit, wherein the transmitting at least a portion of the retro-reflected light to the display device.
[claim14]
14. The first light emitted from the light source is emitted, the first direction of the radiation light at a position on the light emission axis of the first light emitted from the first optical branching unit by at least a portion of the first reflected light as a retro-reflecting unit toward said first reflecting the, wherein the light-emitting direction of the first reflected on the light emission axis in a second position of the first reflected light in the at least a portion of the light retro-reflected by the retro-reflective portion of the first optical branching unit as a second step of the retro-reflected towards, the light-reflecting part with the front of the retro-reflected light and the step of transmitting at least a portion, the first retro-reflective portion by the observation position of the retro-reflected light reflected by the reflection surface and the light-shielding portion blocked by the first light, a display method of the aerial image.
[claim15]
15. Wherein the retro-reflected light from the light source is directly irradiated to an observation position of light blocked by the light-shielding portion and a second direct illumination further comprises the step of the method according to claim 14 aerial image to be displayed.
[claim16]
16. The first light emitted from the light from the light source is emitted, the first direction of the radiation light emitted from the first location on an axis of said second optical branching unit by at least a portion of the emitted light from the first reflected light as a retro-reflecting unit toward said first reflecting the, wherein the light-emitting direction of the first reflected on the light emission axis in a second position of the first reflected light in at least a portion of the light retro-reflected by the retro-reflective portion of the first optical branching unit as a second step of the retro-reflected towards, the light-reflecting part with the front of the retro-reflected light and the step of transmitting at least a portion, wherein the retro-reflected light from the light source is directly irradiated to the observation position of light directly irradiated with the light-shielding portion blocked by the second step, a display method of the aerial image.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • UTSUNOMIYA UNIVERSITY
  • 発明者(英語)
  • YAMAMOTO HIROTSUGU
  • KUJIME RYOSUKE
国際特許分類(IPC)
指定国 (WO201843673)
National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JO JP KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG

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