-
公开(公告)号：US20210149341A1
公开(公告)日：2021-05-20
申请号：US17253575
申请日：2019-07-26
申请人： Envisics Ltd
摘要： An illumination system is arranged to output a light beam for illuminating a scene. The system comprises a spatial light modulator arranged to receive incident light, and to output light comprising a first component and a second component. The first component comprises incident light that is output without modulation by the spatial light modulator. The second component comprises incident light that is spatially-modulated according to a hologram and output by the spatial light modulator. A control device is operable to control the proportion of light output by the spatial light modulator that corresponds to the second component.
-
公开(公告)号：US20200035012A1
公开(公告)日：2020-01-30
申请号：US16505963
申请日：2019-07-09
申请人： ENVISICS LTD
发明人： Brian Mullins , Jamieson Christmas
摘要： Disclosed are systems, methods, and non-transitory computer-readable media for adjusting depth of AR content on HUD. A viewing device identifies, based on sensor data, a physical object visible through a transparent display of the vehicle. The sensor data indicates an initial distance of the physical object from the vehicle. The viewing device gathers virtual content corresponding to the physical object and generates an initial presentation of the virtual content based on the initial distance. The viewing device presents the initial presentation of the virtual content on the transparent display at a position on the transparent display corresponding to the physical object. The viewing device determines, based on updated sensor data, an updated distance of the physical object and generates an updated presentation of the virtual content based on the updated distance. The viewing device presents the updated presentation of the virtual content on the transparent display of the vehicle.
-
公开(公告)号：US10061266B2
公开(公告)日：2018-08-28
申请号：US15364173
申请日：2016-11-29
申请人： Envisics Ltd.
发明人： Jamieson Christmas
IPC分类号： F21V33/00 , G03H1/00 , G03H1/22 , G06K9/00 , G01S17/89 , G01S17/93 , B60Q1/08 , B60Q1/12 , G01S7/481 , G06K9/20 , B60Q1/16 , G01S7/491 , G08G1/16 , B60Q1/06 , F21S41/12 , F21S41/125 , F21S41/13 , F21S41/14 , F21S41/20 , F21S41/25 , F21S41/27 , F21S41/60 , F21S41/64 , F21S43/13 , F21S43/20 , F21S41/16 , G03H1/02
CPC分类号： G01S17/936 , B60Q1/06 , B60Q1/085 , B60Q1/12 , B60Q1/16 , B60Q2300/056 , B60Q2300/122 , B60Q2300/312 , B60Q2300/32 , B60Q2300/322 , B60Q2300/33 , B60Q2300/331 , B60Q2300/42 , B60Q2300/45 , F21S41/12 , F21S41/125 , F21S41/13 , F21S41/14 , F21S41/16 , F21S41/25 , F21S41/27 , F21S41/285 , F21S41/60 , F21S41/645 , F21S43/13 , F21S43/26 , G01S7/4814 , G01S7/4911 , G01S7/4915 , G01S17/89 , G03H1/0005 , G03H1/02 , G03H1/2249 , G03H1/2294 , G03H2001/0212 , G03H2001/0216 , G03H2001/0224 , G03H2001/2263 , G03H2001/2271 , G03H2001/2284 , G03H2001/2297 , G03H2001/306 , G03H2210/20 , G03H2210/22 , G03H2222/16 , G03H2222/17 , G03H2223/26 , G03H2223/55 , G03H2225/25 , G03H2225/32 , G03H2225/52 , G03H2225/61 , G03H2226/05 , G06K9/00791 , G06K9/2036 , G08G1/16
摘要： There is provided a lighting device arranged to produce a controllable light beam for illuminating a scene. The device comprises an addressable spatial light modulator arranged to provide a selectable phase delay distribution to a beam of incident light. The device further comprises fourier optics arranged to receive phase-modulated light from the spatial light modulator and form a light distribution. The device further comprises projection optics arranged to project the light distribution to form a pattern of illumination as said controllable light beam.
-
公开(公告)号：US12111466B2
公开(公告)日：2024-10-08
申请号：US17977325
申请日：2022-10-31
申请人： ENVISICS LTD
发明人： Timothy Smeeton , Yiren Xia , Celedonia Krawczyk
CPC分类号： G02B27/0103 , G02B6/0036 , G02B2027/0118 , G02B2027/0123 , G02B2207/123
摘要： A head-up display for a vehicle comprises an optical component having a reflective surface arranged, during head-up display operation, in a configuration that is conducive to sunlight glare. A light control layer is disposed on the optical component to receive sunlight on an optical path to the reflective surface. The light control layer comprises a sunlight-receiving surface and a core material separating an array of louvres. The sunlight-receiving surface of the light control layer is serrated in coordination with the array of louvres so as to deflect received sunlight away from the eye-box of the head-up display.
-
公开(公告)号：US20240302291A1
公开(公告)日：2024-09-12
申请号：US18435533
申请日：2024-02-07
申请人： Envisics Ltd
发明人： Alexander Cole , Timothy Smeeton
IPC分类号： G01N21/954 , G01N21/59 , G01N21/88
CPC分类号： G01N21/954 , G01N21/59 , G01N21/8806
摘要： A light engine for detecting a defect is provided. The light engine comprises a waveguide. The waveguide comprises a first surface that is partially transmissive-reflective, and a second surface opposite to the first surface. The waveguide is configured to receive, on an input port, an input wavefront and provide waveguiding of the input wavefront by internal reflection between the first and second surfaces thereby replicating the input wavefront along a replication direction. The light engine further comprises a light detector positioned to measure an intensity of a residual portion of the holographic wavefront after waveguiding is provided by the waveguide.
-
公开(公告)号：US12078800B2
公开(公告)日：2024-09-03
申请号：US18552629
申请日：2022-08-17
申请人： Envisics Ltd
CPC分类号： G02B27/0081 , G02B27/0093 , G02B27/0149 , G02B2027/0105 , G02B2027/0125
摘要： A holographic system comprises a display device and a waveguide pupil expander. The display device is arranged to display a hologram and to output spatially modulated light in accordance with the hologram. The waveguide pupil expander is configured to receive spatially modulated light from the display device at the input port thereof and to expand the viewing window of the system. The waveguide pupil expander comprises first and second substantially planar reflective surfaces arranged in parallel having an optically transparent material therebetween. The first reflective surface is fully reflective and the second reflective surface is partially reflective such that light is guided from the input port to an output port at the second reflective surface by a series of internal reflections. The optically transparent material is formed by a layered glass structure arranged to maintain the integrity of the waveguide in the event of breakage of glass.
-
公开(公告)号：US20240231088A1
公开(公告)日：2024-07-11
申请号：US18397689
申请日：2023-12-27
申请人： Envisics Ltd
发明人： Yiren Xia , Timothy Smeeton
CPC分类号： G02B27/0103 , G03H1/2294 , G02B2027/0123
摘要： A holographic projector includes a waveguide that includes a pair of opposing reflective surfaces arranged to receive and waveguide a hologram/holographic wavefront therebetween. A first surface of the pair of complementary surfaces is partially reflective-partially transmissive such that a plurality of replicas of the hologram/holographic wavefront are emitted therefrom. The holographic projector further includes a diffractive optical element arranged to receive the plurality of replicas of the hologram/holographic wavefront from the first surface of the waveguide and principally redirect each replica into a respective non-zero diffractive order defined by a diffraction angle. The holographic projector also includes an array of louvres arranged to receive the hologram/holographic wavefront from the diffractive optical element, where the array of louvres is substantially transmissive at the non-zero diffraction angle and substantially non-transmissive at a zeroth diffraction angle of the diffractive optical element.
-
公开(公告)号：US20240168283A1
公开(公告)日：2024-05-23
申请号：US18552629
申请日：2022-08-17
申请人： Envisics Ltd
CPC分类号： G02B27/0081 , G02B27/0093 , G02B27/0149 , G02B2027/0105 , G02B2027/0125
摘要： A holographic system comprises a display device and a waveguide pupil expander. The display device is arranged to display a hologram and to output spatially modulated light in accordance with the hologram. The waveguide pupil expander is configured to receive spatially modulated light from the display device at the input port thereof and to expand the viewing window of the system. The waveguide pupil expander comprises first and second substantially planar reflective surfaces arranged in parallel having an optically transparent material therebetween. The first reflective surface is fully reflective and the second reflective surface is partially reflective such that light is guided from the input port to an output port at the second reflective surface by a series of internal reflections. The optically transparent material is formed by a layered glass structure arranged to maintain the integrity of the waveguide in the event of breakage of glass.
-
公开(公告)号：US11940759B2
公开(公告)日：2024-03-26
申请号：US17461362
申请日：2021-08-30
申请人： ENVISICS LTD
发明人： Alexander Cole
IPC分类号： G03H1/22
CPC分类号： G03H1/2294 , G03H1/2205 , G03H1/2249 , G03H2225/32
摘要： A projector arranged to project an image within a display area on a display plane. The image comprises a light feature. A light sensor is spatially separated from the display plane. In an aligned state, light forming the light feature of the image on the display plane is at least partially disposed around the light sensor. In the aligned state, substantially no light forming the light feature impinges on the light sensor. The aligned state defines a selected alignment between the display area and the display plane (i.e. a selected position of the display area on the display plane).
-
公开(公告)号：US20240077651A1
公开(公告)日：2024-03-07
申请号：US18240918
申请日：2023-08-31
申请人： Envisics Ltd
发明人： Timothy SMEETON , Yiren XIA
CPC分类号： G02B1/111 , G02B5/003 , G02B5/045 , G02B27/0103
摘要： A method of manufacturing a light control film includes providing a plurality of alternating layers of transparent material and light absorbing material. Each layer of light absorbing material is interspersed between respective layers of transparent material. The plurality of alternating layers are stacked in a stacking direction perpendicular to the plane of a surface of at least one of the plurality of alternating layers. The method includes cutting the plurality of alternating layers in a first and second cutting plane resulting in an intermediate film including a first cut surface parallel to the first cutting plane and a second cut surface parallel to the second cutting plane. Each of the first and second cutting planes is orientated at an angle less than or equal to 90° to the stacking direction. The method includes hot embossing the repeating prismatic structure on the first cut surface of the intermediate film resulting in a serrated/corrugated first surface.
-
-
-
-
-
-
-
-
-
搜索结果
139 条记录 (耗时 0.016 秒)
