-
公开(公告)号：US20220397763A1
公开(公告)日：2022-12-15
申请号：US17471161
申请日：2021-09-10
摘要： A folded-path optical component usable as an ocular lens in a near-eye display is disclosed. The folded-path optical component includes a cavity formed by a pair of spaced apart coaxial curved reflective polarizers, and a partial reflector in the cavity for splitting an impinging light beam to propagate along two optical paths ending at an exit pupil of the optical component. Each optical path includes a reflection from one of the reflective polarizers and a transmission through the other one of the reflective polarizers.
-
公开(公告)号：US11366298B1
公开(公告)日：2022-06-21
申请号：US16535794
申请日：2019-08-08
发明人： Babak Amirsolaimani , Yun-Han Lee , Robin Sharma
摘要： A telecentric optical element that has a first surface, a second surface, and a layer of optically anisotropic material between the first surface and the second surface. The telecentric optical element is configured to receive light on the first surface, the light having propagated from a location within a predetermined distance range from the first surface of the optical element. The telecentric optical element is also configured to redirect a first portion of the light, having a first polarization, off the first surface of the telecentric optical element in an off-axis direction, and to transmit a second portion of light, having polarization different from the first polarization, to the second surface. An eye-tracking assembly that includes the telecentric optical element and a display device that includes the telecentric optical element are also disclosed.
-
公开(公告)号：US11366260B1
公开(公告)日：2022-06-21
申请号：US16417334
申请日：2019-05-20
摘要： An optical system includes an optical lens, a polarization volume hologram (PVH) layer arranged over the optical lens, and an IR absorbing structure arranged between the optical lens and the PVH layer. The PVH layer being configured to reflect infrared (IR) light. The IR absorbing structure includes a quarter-wave plate (QWP) arranged between the optical lens and the PVH layer and a linear absorptive polarizer arranged between the QWP and the optical lens. The linear absorptive polarizer is configured to absorb IR light.
-
公开(公告)号：US11256086B2
公开(公告)日：2022-02-22
申请号：US16359117
申请日：2019-03-20
发明人： Babak Amirsolaimani , Pasi Saarikko , Ying Geng , Yusufu Njoni Bamaxam Sulai , Scott Charles McEldowney
IPC分类号： G02B27/00 , G02B27/01 , G02B6/42 , G06T7/70 , G06F3/01 , F21V8/00 , G02B6/27 , G02B23/12 , G02B6/35 , G02B6/10
摘要： An optical system includes an optical waveguide, and a first optical element configured to direct a first ray, having a first circular polarization and impinging on the first optical element at a first incidence angle, in a first direction so that the first ray propagates through the optical waveguide via total internal reflection toward a second optical element. The first optical element is configured to also direct a second ray, having a second circular polarization that is distinct from the first circular polarization and impinging on the first optical element at the first incidence angle, in a second direction that is distinct from the first direction so that the second ray propagates away from the second optical element. The second optical element is configured to direct the first ray propagating through the optical waveguide toward a detector.
-
公开(公告)号：US10969675B1
公开(公告)日：2021-04-06
申请号：US16436736
申请日：2019-06-10
IPC分类号： G03B21/28 , G02B26/12 , G02B27/30 , G02F1/1335 , G02B27/01
摘要： An optical assembly includes a first optical waveguide, a first in-coupler coupled with the first optical waveguide and a projector configured to project image light toward a first side of the first optical waveguide. The optical assembly also includes a first scanning reflector optically coupled with the projector and disposed on a second side of the first optical waveguide that is opposite to the first side. The projector is configured to project image light. The first scanning reflector is configured to receive the image light and to redirect the image light across a first range of directions. The first in-coupler is configured to redirect a first portion of the image light so that the first portion of the image light undergoes total internal reflection inside the first optical waveguide.
-
公开(公告)号：US20190353891A1
公开(公告)日：2019-11-21
申请号：US16222796
申请日：2018-12-17
摘要： A method includes obtaining a first optical assembly including a first optical element and a first flexible membrane. The first optical element has a first optical element surface and a second optical element surface that is opposite to the first optical element surface. The first flexible membrane has a first membrane surface and a second membrane surface that is opposite to the first membrane surface. The first optical element is a geometric phase optical element or a polarization volume hologram optical element. The second optical element surface of the first optical element is coupled with at least a first portion of the first membrane surface of the first flexible membrane. The method also includes coupling the first optical element with the first flexible membrane attached thereto to a target substrate. Also disclosed is an optical assembly comprising the first optical element and the first flexible membrane.
-
公开(公告)号：US11536966B2
公开(公告)日：2022-12-27
申请号：US17081272
申请日：2020-10-27
发明人： Babak Amirsolaimani , Brian Wheelwright , Daniel Guenther Greif , Weichuan Gao , Miaomiao Xu , Jacques Gollier
摘要： A display device includes a relay waveguide and a scanner. The scanner is configured to angularly scan image light for coupling into the waveguide, and includes a scanning reflector and a second reflector disposed between the scanning reflector and an input coupler of the waveguide. The scanning reflector has an aperture for the image light to propagate therethrough toward the second reflector. The second reflector is configured to reflect at least a portion of the image light received through the aperture back toward the scanning reflector and to transmit at least a portion of the image light reflected from the scanning reflector toward the input coupler. The arrangement enables a compact design of the display.
-
公开(公告)号：US11415794B2
公开(公告)日：2022-08-16
申请号：US16592163
申请日：2019-10-03
摘要： A beam scanner for a near-eye display includes a beam-folded pupil relay configured for receiving a light beam reflected from a tiltable reflector and relaying the light beam to an exit pupil while preserving the beam angle of the reflected beam. The beam-folding pupil relay includes a beamsplitter, e.g. a polarization beam splitter configured to redirect the beam to a curved reflector, which sends the beam towards the exit pupil. Polarization of the light beam reflected from the curved reflector may be changed to an orthogonal polarization by a waveplate disposed in an optical path of the light beam between the polarization beam splitter and the curved reflector, enabling the reflected light beam to propagate through the polarization beam splitter towards the exit pupil. A pupil-replicating waveguide may be disposed proximate the exit pupil. A 2D tiltable reflector or a pair of 1D tiltable reflectors may be used.
-
公开(公告)号：US11209775B2
公开(公告)日：2021-12-28
申请号：US16417223
申请日：2019-05-20
发明人： Andrew John Ouderkirk , Robin Sharma , Hannah Noble , Babak Amirsolaimani , Yusufu Njoni Bamaxam Sulai
摘要： An optical system includes a substrate and a polarization volume hologram (PVH) composite film formed over the substrate. The PVH composite film includes a first PVH layer formed over the substrate and having a helix twist of a first handedness, and a second PVH layer coupled to the first PVH layer and having a helix twist of a second handedness orthogonal to the first handedness. The first PVH layer is configured to reflect and converge circularly polarized light having the first handedness. The second PVH layer is configured to reflect and converge circularly polarized light having the second handedness.
-
10.发明授权公开(公告)号：US11048087B2
公开(公告)日：2021-06-29
申请号：US16436729
申请日：2019-06-10
IPC分类号： G02B27/01
摘要： An optical assembly for projecting light from a display includes a first optical waveguide, a reflective optical element configured, and a first in-coupler. The reflective optical element is configured to receive first light having first polarization from the display and to reflect the first light as second light having second polarization distinct from the first polarization. The first in-coupler is coupled with the first optical waveguide. The first in-coupler is configured to receive and transmit the first light. The first in-coupler is further configured to receive the second light and redirect a first portion of the second light so that the first portion of the second light undergoes total internal reflection inside the first optical waveguide.
-
-
-
-
-
-
-
-
-
搜索结果
51 条记录 (耗时 0.023 秒)