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公开(公告)号：US11269189B2
公开(公告)日：2022-03-08
申请号：US17105482
申请日：2020-11-25
发明人： Mitsutaka Ide , Masatoshi Yonekubo
摘要： An image display device includes an image light generation device configured to generate image light, and a deflection member configured to deflect the image light to form an exit pupil, in which the image light generation device includes a first light source unit configured to emit first light, a second light source unit configured to emit second light within a same frequency band as the first light and having a wavelength band different from a wavelength band of the first light, and a combining optical member configured to at least partially superimpose the first light and the second light, the deflection member includes a first diffraction member corresponding to the wavelength band of the first light and a second diffraction member corresponding to the wavelength band of the second light, and the first diffraction member and the second diffraction member overlap when viewed from the exit pupil.
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公开(公告)号：US11067810B2
公开(公告)日：2021-07-20
申请号：US16666517
申请日：2019-10-29
发明人： Masatoshi Yonekubo , Mitsutaka Ide
摘要： A head-mounted display apparatus according to an aspect of the present disclosure includes an imaging light generating device, a first deflection element including a first deflection section configured to deflect imaging light in a first direction and a second deflection section configured to deflect the imaging light in a second direction, a first diffraction element, and a second diffraction element. When a plane surrounded by the principal ray passing plane, the first principal ray, the second principal ray, and the first deflection section is taken as a first plane, and a plane surrounded by the second deflection section, the first principal ray, the second principal ray, and the first diffraction element is taken as a second plane, the first plane overlaps with at least a part of the second plane when viewed from the third direction and does not overlap with the second plane when viewed from the fourth direction.
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公开(公告)号：US20160259113A1
公开(公告)日：2016-09-08
申请号：US15048079
申请日：2016-02-19
IPC分类号： F21V8/00
CPC分类号： G02B6/0016 , G02B6/0036 , G02B6/0058 , G02B6/0073
摘要： An illuminating device includes a first light-emitting element formed of a light-emitting diode and a light-guide plate having on a side surface thereof a first light-incident portion opposing the first light-emitting element. The light-guide plate in plan view has a shape having a curved surface on the side surface thereof at a distance from the first light incident portion. A plurality of first bevels facing the first light-incident portion at a certain angle exceeding (90°—critical angle) with respect to a virtual line extending from a center of the first light-incident portion are provided in at least part of an area of the curved surface in a circumferential direction.
摘要翻译： 照明装置包括由发光二极管形成的第一发光元件和在其侧表面上具有与第一发光元件相对的第一光入射部分的导光板。 平面图中的导光板具有在与第一光入射部分相距一定距离的侧面上具有曲面的形状。 以相对于从第一光入射部分的中心延伸的虚拟线超过（90°临界角）的一定角度面对第一光入射部分的多个第一斜面设置在区域的至少一部分中 的曲面。
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公开(公告)号：US20150062715A1
公开(公告)日：2015-03-05
申请号：US14468476
申请日：2014-08-26
CPC分类号： G02B27/0172 , G02B5/1847 , G02B6/124 , G02B2027/0174 , G02B2027/0178
摘要： A first diffraction optical element is disposed on a light incident surface of a light guide, a second diffraction optical element is disposed on a light emitting surface of the light guide, and a reflection layer is disposed on an end surface of the light guide. A diffraction grating of the first diffraction optical element and a diffraction grating of the second diffraction optical element has an inclined portion respectively. The inclined portion of the first diffraction optical element and the inclined portion of the second diffraction optical element are inclined in same direction.
摘要翻译： 第一衍射光学元件设置在光导的光入射面上，第二衍射光学元件设置在光导的发光面上，反射层设置在光导的端面上。 第一衍射光学元件的衍射光栅和第二衍射光学元件的衍射光栅分别具有倾斜部分。 第一衍射光学元件的倾斜部分和第二衍射光学元件的倾斜部分沿相同的方向倾斜。
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公开(公告)号：US11567327B2
公开(公告)日：2023-01-31
申请号：US17162873
申请日：2021-01-29
摘要： A display module includes an image light generation device configured to generate image light, a first reflection section configured to reflect the image light from the image light generation device, a first diffraction element configured to diffract the image light entering a first incident surface, a second reflection section configured to reflect the image light from the first diffraction element, and a second diffraction element configured to diffract the image light entering a second incident surface, thereby forming an exit pupil. When viewed from a normal line direction of a virtual plane including a normal line of the first incident surface and a normal line of the second incident surface, an optical axis of the image light from the image light generation device toward the first reflection section and an optical axis of the image light from the first diffraction element toward the second reflection section intersect each other.
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公开(公告)号：US11237398B2
公开(公告)日：2022-02-01
申请号：US17204224
申请日：2021-03-17
发明人： Masatoshi Yonekubo , Akio Fukase
摘要： A head-mounted display apparatus includes a cross dichroic prism including four triangular prisms that are mutually bonded, and a first dichroic film and a second dichroic film provided between adjacent prisms of the four triangular prisms, a plurality of display panels arranged respectively opposite to a plurality of light incident planes of the cross dichroic prism, and a projection optical system configured to project light emitted from the cross dichroic prism onto a pupil of a user. The cross dichroic prism includes an optically imperfect part at a center of a bonded part of the four triangular prisms. A ratio between an aerial conversion length from each of light-emission planes of the plurality of display panels to the center of the bonded part, and a width of the optically imperfect part, is greater than or equal to 250:1.
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公开(公告)号：US10983357B2
公开(公告)日：2021-04-20
申请号：US16456001
申请日：2019-06-28
发明人： Masatoshi Yonekubo , Akio Fukase
摘要： A head-mounted display apparatus includes a cross dichroic prism including four triangular prisms that are mutually bonded, and a first dichroic film and a second dichroic film provided between adjacent prisms of the four triangular prisms, a plurality of display panels arranged respectively opposite to a plurality of light incident planes of the cross dichroic prism, and a projection optical system configured to project light emitted from the cross dichroic prism onto a pupil of a user. The cross dichroic prism includes an optically imperfect part at a center of a bonded part of the four triangular prisms. A ratio between an aerial conversion length from each of light-emission planes of the plurality of display panels to the center of the bonded part, and a width of the optically imperfect part, is greater than or equal to 250:1.
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公开(公告)号：US10025009B2
公开(公告)日：2018-07-17
申请号：US14156405
申请日：2014-01-15
CPC分类号： G02B5/18 , G02B6/0035 , G02B6/0076 , G02B27/0172 , G02B2027/0112 , G02B2027/0123 , G02B2027/0174 , G02B2027/0178 , G03H2001/2226
摘要： An optical device includes a light-conducting member, having a first panel surface disposed facing an image forming unit, that conducts image light incident on a light entry plane formed at an end of the first panel surface to a light exit plane formed in front of the viewer's eye; a first diffractive optics element, provided on the light entry plane, that diffracts the image light incident on the light entry plane in a predetermined direction and transmits that light into the light-conducting member; a second diffractive optics element, provided on the light exit plane, that diffracts the image light exiting from the light exit plane in a predetermined direction and transmits that light to the front of the viewer's eye; and one or more reflective planes disposed within a waveguide for the image light diffracted by the first diffractive optics element.
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9.发明授权Optical device including diffraction elements for diffracting light inside of a light guide, image projecting apparatus, and electronic device 有权光学装置，包括用于衍射光线内的光的衍射元件，图像投影装置和电子装置公开(公告)号：US09568730B2
公开(公告)日：2017-02-14
申请号：US14659863
申请日：2015-03-17
CPC分类号： G02B27/0103 , G02B6/0016 , G02B6/34 , G02B27/0101 , G02B27/0172 , G02B2027/0116 , G02B2027/0174 , G02B2027/0178
摘要： An optical device includes a light guide plate; a first diffraction element that is a transmission type diffraction element provided on a first face of the light guide plate and that diffracts and ejects at least a portion of light which is guided along inside the light guide plate; a second diffraction element that is a transmission type diffraction element provided on the first face of the light guide plate and that diffracts at least a portion of light proceeding to the light guide plate; and a third diffraction element that is a reflection type diffraction element provided on a face which is an opposite face of the light guide plate from the first face, and that diffracts at least a portion of light which enters an inside of the light guide plate via the second diffraction element.
摘要翻译： 光学装置包括导光板; 第一衍射元件，其是设置在所述导光板的第一面上的透射型衍射元件，其衍射并喷出沿着所述导光板的内部被引导的至少一部分光; 第二衍射元件，其是设置在所述导光板的所述第一面上并且衍射进入所述导光板的光的至少一部分的透射型衍射元件; 以及第三衍射元件，其是设置在与所述第一面相对的所述导光板的相对面的面上的反射型衍射元件，并且通过所述第三衍射元件衍射进入所述导光板内部的光的至少一部分， 第二衍射元件。
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公开(公告)号：US09405121B2
公开(公告)日：2016-08-02
申请号：US14878224
申请日：2015-10-08
发明人： Daisuke Ishida , Masatoshi Yonekubo
CPC分类号： G02B27/017 , G02B26/085 , G02B26/101 , G02B26/105 , G02B27/01 , G02B27/0172 , G02B27/0972 , G02B2027/0112 , G02B2027/0123 , G02B2027/0132 , G02B2027/0178 , H04N9/3129
摘要： An image display apparatus includes a plurality of light source sections, a light combining section that combines light fluxes, an optical scan section that swings around a first axis and a second axis to deflect a combined light from the light combining section for scanning, and a controller that controls an amplitude of the optical scan section around the first axis to be greater than that of the optical scan section around the second axis, wherein an optical axis of each of the light fluxes from the plurality of light source sections to the optical scan section and the first axis are present in a first plane, the optical scan section has a light reflection surface configured to be perpendicular to the first plane, and the light reflection surface is irradiated with the combined light and traveling in a direction inclined to a normal to the light reflection surface.
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