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公开(公告)号：US12222502B2
公开(公告)日：2025-02-11
申请号：US17434954
申请日：2020-12-30
Inventor： Ruijun Dong , Chenru Wang , Ke Li , Yulong Wu , Na Han , Jiarong Bai
IPC: G02B27/01
Abstract: An optical system, a display apparatus, and smart glasses are provided. The optical system includes a transflective element, a reflective element and a plurality of microstructures. The transflective element is configured to reflect collimated incident light to the reflective element. The reflective element is configured to reflect the collimated incident light back to a light incident surface of the transflective element, so as to adjust an angle at which the collimated incident light exits. The transflective element is further configured to transmit the reflected-back collimated incident light to a target region. The plurality of microstructures are configured to adjust angles at which ambient stray light incident on surfaces thereof exits, and to scatter the ambient stray light out of the target region.
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公开(公告)号：US12038586B2
公开(公告)日：2024-07-16
申请号：US17992416
申请日：2022-11-22
Inventor： Ruijun Dong , Yali Liu , Chenru Wang , Ke Li , Hao Zhang
CPC classification number: G02B27/0172 , G02B13/002 , G02B2027/0178 , G02B27/126
Abstract: A near-eye display apparatus is disclosed. The near-eye display apparatus includes a lens and an optical path folding assembly. The lens is configured to receive incident light of a first image, which is projected by a micro-display, and shape the first image; the lens includes a primary optical axis and a first lens face and a second lens face which are opposed in a first direction where the primary optical axis of the lens is positioned, a curvature radius of the first lens face is within a range of 70 to 100 millimeters, and a curvature radius of the second lens face is within a range of 10 to 30 millimeters; and the optical path folding assembly is configured to receive light of the first image shaped by the lens and fold an optical path from the lens to an exit pupil of the near-eye display apparatus.
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公开(公告)号：US11536957B2
公开(公告)日：2022-12-27
申请号：US16474791
申请日：2018-12-21
Inventor： Yali Liu , Chenru Wang , Ruijun Dong , Xuebing Zhang , Ke Li , Hao Zhang , Lili Chen
Abstract: A method and apparatus for optimizing a lens of a virtual reality device and a computer readable storage medium. The method for optimizing a lens of a virtual reality device includes setting an optimization objective and optimization variables for imaging with a lens; and performing optimization processing on the imaging of an object point through the lens by the optimization variables, and obtaining a lens parameter value by which the imaging result is in accordance with the optimization objective, an image surface of the imaging of the object point through the lens being an image surface on which the astigmatism is less than a preset threshold.
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公开(公告)号：US10948987B2
公开(公告)日：2021-03-16
申请号：US16384634
申请日：2019-04-15
Inventor： Chenru Wang , Hao Zhang , Yali Liu , Ruijun Dong , Xuebing Zhang , Ke Li , Lili Chen , Zhanshan Ma
IPC: G02F1/1343 , G06F3/01 , F21V8/00
Abstract: A light guiding component is provided in an eyeball tracking module which includes a first substrate and a second substrate disposed opposite to each other, a first electrode disposed on the first substrate, a second electrode disposed on the second substrate, and at least one liquid crystal structure disposed between the first electrode and the second electrode. The liquid crystal structure includes liquid crystal molecules. The first electrode and the second electrode are configured to control a deflection direction of the liquid crystal molecules with an applied voltage, such that a light ray incident to the light guiding component, which meets a threshold condition, is emitted along a predetermined direction.
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公开(公告)号：US10859822B2
公开(公告)日：2020-12-08
申请号：US16074951
申请日：2017-12-14
Inventor： Xuebing Zhang , Dong Chen , Hao Zhang , Lili Chen , Ruijun Dong , Chenru Wang , Yali Liu
Abstract: A lens, an optical display device including the lens, and a method for manufacturing the lens. The lens includes at least two lens portions; which have different focal lengths. When human eyes view a real scene image through the at least two lens portions separately, the real scene image is imaged at different image distances. The lens includes different lens portions having different focal lens, and thus can be a multi-focus lens. When the lens is used for an optical display device, the human eyes will see virtual image planes at different distances when viewing a display picture through the different lens portions due to the different focal lengths of the different lens portions. Visual fatigue can be reduced, and also scene images at difference distances can be appropriated, so that the three-dimensional feeling is improved.
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Patent Agency Ranking
公开(公告)号：US10539735B2
公开(公告)日：2020-01-21
申请号：US15545317
申请日：2017-01-09
Inventor： Ruijun Dong , Dong Chen , Haiwei Sun , Chenru Wang , Jianjie Wu , Lili Chen
IPC: G02F1/1333 , F21V8/00 , F21V9/30 , G02F1/1335 , G06F3/01 , G06K9/00
Abstract: A backlight source includes: an LED light source for emitting a visible light, a light guide plate and an infrared quantum point, wherein the LED light source is arranged on a light incidence side of the light guide plate and the infrared quantum point is arranged on at least one face of the light guide plate. And the infrared quantum point is excited by a part of the visible light emitted from the LED light source to emit an infrared light. The other part of visible light emitted from the LED light source exits uniformly a light exit face of the light guide plate along with the infrared light. The infrared quantum point is arranged on at least one face of the light guide plate other than the light incidence face and the light exit face.
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公开(公告)号：US20180231781A1
公开(公告)日：2018-08-16
申请号：US15704132
申请日：2017-09-14
Inventor： Ruijun Dong , Dong Chen , Hao Zhang , Lili Chen , Chenru Wang , Xuebing Zhang , Yali Liu
CPC classification number: G02B27/0172 , A63F2300/8082 , G02B3/08 , G02B6/0011 , G02B6/08 , G02B2027/0123 , G06T15/00
Abstract: The present disclosure provides an optical imaging structure and virtual reality spectacles. In one embodiment, an optical imaging structure includes: an eyeglass component; and at least one light guide wall distributed along an edge of the eyeglass component, wherein, two opposite end faces of the at least one light guide wall are respectively a light incoming face and a light outgoing face; wherein, an inner rim of the light outgoing face joins the edge of the eyeglass component and extends in an optical axis direction of the eyeglass component, and, the light outgoing face is gradually distanced from the eyeglass component from the inner rim to an outer rim of the light outgoing face; and wherein, the at least one light guide wall includes a first light guide wall and a second light guide wall respectively disposed at left and right sides of the eyeglass component.
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公开(公告)号：US12099187B2
公开(公告)日：2024-09-24
申请号：US17424506
申请日：2021-01-11
Inventor： Ke Li , Yulong Wu , Ruijun Dong , Yali Liu , Chenru Wang , Hao Zhang
CPC classification number: G02B27/0172 , G02B3/0075 , G02B27/026 , G02B27/0905 , G02B27/40 , G06T19/006 , G02B2027/0127 , G02B2027/013 , G02B2027/0185
Abstract: An AR optical system includes a depth-of-field separation structure corresponding to an image source, configured to convert light rays emitted from the image source into a plurality of light beams with different depths of field; a convergent lens located on an emergent light path of the depth-of-field separation structure, and configured to receive and shape the plurality of light beams with different depths of field; a first semi-transmitting semi-reflecting mirror located on a side, away from the depth-of-field separation structure, of the convergent lens, and configured to reflect the plurality of shaped light beams with different depths of field towards a set direction; a concave mirror having a preset transmission-reflection ratio configured to reflect and converge the plurality of light beams with different depths of field and then make the light beam incident to a set observation position after passing through the first semi-transmitting semi-reflecting mirror.
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公开(公告)号：US11886051B2
公开(公告)日：2024-01-30
申请号：US17287446
申请日：2020-09-18
Inventor： Chenru Wang , Yali Liu , Ruijun Dong , Ke Li , Hao Zhang
CPC classification number: G02F1/011 , G02B6/4206 , G02B30/10
Abstract: A display device includes: an optical waveguide comprising an optical waveguide body and a light outputting section disposed on the optical waveguide body; M lens assemblies disposed adjacent to an end of the optical waveguide body, wherein at least two lens assemblies of the M lens assemblies have different focal lengths, and M is a natural number greater than one; and M display screens corresponding to the M lens assemblies in one-to-one correspondence, each of the M display screens configured to emit light with image information through a corresponding lens assembly to the optical waveguide body for transmission; wherein the light outputting section is configured to output the light from the M display screens out of the optical waveguide body for imaging, the light from the M display screens form M images, respectively, and at least two images of the M images have different image distances.
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公开(公告)号：US11231580B2
公开(公告)日：2022-01-25
申请号：US16199978
申请日：2018-11-26
Inventor： Xuebing Zhang , Chenru Wang , Ruijun Dong , Yali Liu , Hao Zhang , Lili Chen
Abstract: Embodiments of the disclosure relate to an eye tracking device and a virtual reality imaging apparatus. The eye tracking device includes an electromagnetic radiation source configured to emit electromagnetic radiation toward an eye, a lens having a first side surface facing the eye and a second side surface opposite the first side surface, a first reflective film on the first side surface of the lens for reflecting the electromagnetic radiation, a second reflective film on the second side surface of the lens for reflecting the electromagnetic radiation, and an imaging means configured to receive the electromagnetic radiation from the eye, wherein the first reflective film and the second reflective film are positioned to direct the electromagnetic radiation from the eye to the imaging means.
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