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公开(公告)号：US20210258546A1
公开(公告)日：2021-08-19
申请号：US17246417
申请日：2021-04-30
IPC分类号： H04N9/31
摘要： Image display apparatus and methods may use a single imaging element such as a digital mirror device (DMD) to spatially modulate plural color channels. A color channel may include a light steering element such as a phase modulator. Steered light from a light steering element may be combined with or replaced by additional light to better display bright images. These technologies may be provided together or applied individually.
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公开(公告)号：US20170138545A1
公开(公告)日：2017-05-18
申请号：US15418505
申请日：2017-01-27
发明人： Johannes MINOR , Gerwin DAMBERG , Raveen KUMARAN , Anders BALLESTAD , Eric Jan KOZAK , Gil ROSENFELD , Eran ELIZUR
CPC分类号： F21K9/60 , F21K9/61 , F21V29/90 , F21Y2115/10 , F21Y2115/30 , G02B26/0833
摘要： A light source includes a plurality of laser diodes or other light emitters. Beams of light from the light emitters are steered to provide n array of parallel beams that illuminate a target area with an array of patches of light. In some embodiments the parallel beams are de-magnified to form the array of patches of light. Such a light source has application in illuminating dynamically-addressable focusing elements such as phase modulators, deformable mirrors and dynamically addressable lenses. Light projectors for a wide variety of applications may combine a light source as described herein with a dynamically-addressable focusing element to project defined patterns of light.
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公开(公告)号：US20240042691A1
公开(公告)日：2024-02-08
申请号：US18491731
申请日：2023-10-20
发明人： Sam BULS , Andra ST QUINTIN , Raveen KUMARAN
IPC分类号： B29C64/291 , B29C64/282 , B29C64/153 , B29C64/273
CPC分类号： B29C64/291 , B29C64/282 , B29C64/153 , B29C64/273 , B33Y30/00
摘要： Apparatus for additive manufacturing includes a light source that emits light into an optical path that extends to a powder bed or other platform for additive manufacturing. A phase modulator in the optical path is controlled to present a 2D pattern of phase shifts that steer the light to provide a desired pattern of optical power density on the powder bed. In some embodiments the optical path includes elements that focus the light into a small spot on the powder bed and a scanner operative to scan the spot over the powder bed. In some embodiments the light from the optical path is distributed over an area of the powder bed. A pattern of optical power density within the spot or area may be altered by changing the data controlling the phase modulator.
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公开(公告)号：US20230188684A1
公开(公告)日：2023-06-15
申请号：US18066855
申请日：2022-12-15
IPC分类号： H04N9/31
CPC分类号： H04N9/3105 , H04N9/3111 , H04N9/3126 , H04N9/312 , H04N9/3138 , H04N9/3167
摘要： Image display apparatus and methods may use a single imaging element such as a digital mirror device (DMD) to spatially modulate plural color channels. A color channel may include a light steering element such as a phase modulator. Steered light from a light steering element may be combined with or replaced by additional light to better display bright images. These technologies may be provided together or applied individually.
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公开(公告)号：US20210254797A1
公开(公告)日：2021-08-19
申请号：US17249287
申请日：2021-02-25
发明人： Johannes MINOR , Gerwin DAMBERG , Raveen KUMARAN , Anders BALLESTAD , Eric Jan KOZAK , Gil ROSENFELD , Eran ELIZUR
摘要： A light source includes a plurality of laser diodes or other light emitters. Beams of light from the light emitters are steered to provide n array of parallel beams that illuminate a target area with an array of patches of light. In some embodiments the parallel beams are de-magnified to form the array of patches of light. Such a light source has application in illuminating dynamically-addressable focusing elements such as phase modulators, deformable mirrors and dynamically addressable lenses. Light projectors for a wide variety of applications may combine a light source as described herein with a dynamically-addressable focusing element to project defined patterns of light.
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公开(公告)号：US20180048873A1
公开(公告)日：2018-02-15
申请号：US15724141
申请日：2017-10-03
IPC分类号： H04N9/31
CPC分类号： H04N9/3105 , H04N9/3111 , H04N9/312 , H04N9/3126 , H04N9/3138 , H04N9/3167
摘要： Image display apparatus and methods may use a single imaging element such as a digital mirror device (DMD) to spatially modulate plural color channels. A color channel may include a light steering element such as a phase modulator. Steered light from a light steering element may be combined with or replaced by additional light to better display bright images. These technologies may be provided together or applied individually.
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公开(公告)号：US20170150107A1
公开(公告)日：2017-05-25
申请号：US15312165
申请日：2015-05-15
发明人： Eric KOZAK , Gerwin DAMBERG , Anders BALLESTAD , Raveen KUMARAN , James GREGSON , Johannes MINOR , Gil ROSENFELD
CPC分类号： H04N9/3147 , G02B27/48 , G03B21/005 , G03B21/26 , G03B35/20 , G03B2206/00 , H04N9/3126 , H04N9/3155 , H04N9/3161 , H04N9/3164 , H04N9/3182 , H04N9/3188 , H04N9/3194 , H04N13/332 , H04N13/363
摘要： Light projection systems and methods may comprise combining light from two or more projectors. Each projector may be controlled so that the combined light output of the projectors matches a target for the projected light. In some embodiments optimization is performed to generate image data and control signals for each of the projectors. Embodiments may be applied in image projecting applications, lighting applications, and 3D stereoscopic imaging.
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公开(公告)号：US20170099466A1
公开(公告)日：2017-04-06
申请号：US15287390
申请日：2016-10-06
发明人： Gerwin DAMBERG , Eric Jan KOZAK , Raveen KUMARAN
IPC分类号： H04N9/31
CPC分类号： H04N9/3105 , H04N9/3111 , H04N9/312 , H04N9/3126 , H04N9/3138 , H04N9/3167
摘要： Image display apparatus and methods may use a single imaging element such as a digital mirror device (DMD) to spatially modulate plural color channels. A color channel may include a light steering element such as a phase modulator. Steered light from a light steering element may be combined with or replaced by additional light to better display bright images. These technologies may be provided together or applied individually.
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公开(公告)号：US20240080416A1
公开(公告)日：2024-03-07
申请号：US18365173
申请日：2023-08-03
IPC分类号： H04N9/31
CPC分类号： H04N9/312 , H04N9/3138 , H04N9/3152 , H04N9/317 , H04N9/3185
摘要： Example embodiments provide systems and methods for correcting non-uniformities of a light beam generated by a multi-emitter light source. In some embodiments a phase modulator displays patch lenses to correct for the non-uniformities. In some embodiments each region of the phase modulator is illuminated by a beam generated by one emitter of the multi-emitter light source. Such region of the phase modulator may display a patch lens for correcting non-uniformities in the corresponding beam which illuminates the region.
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公开(公告)号：US20200088358A1
公开(公告)日：2020-03-19
申请号：US16550090
申请日：2019-08-23
发明人： Johannes MINOR , Gerwin DAMBERG , Raveen KUMARAN , Anders BALLESTAD , Eric Jan KOZAK , Gil ROSENFELD , Eran ELIZUR
摘要： A light source includes a plurality of laser diodes or other light emitters. Beams of light from the light emitters are steered to provide n array of parallel beams that illuminate a target area with an array of patches of light. In some embodiments the parallel beams are de-magnified to form the array of patches of light. Such a light source has application in illuminating dynamically-addressable focusing elements such as phase modulators, deformable mirrors and dynamically addressable lenses. Light projectors for a wide variety of applications may combine a light source as described herein with a dynamically-addressable focusing element to project defined patterns of light.
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