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公开(公告)号：US12019260B2
公开(公告)日：2024-06-25
申请号：US18136673
申请日：2023-04-19
发明人： Aleksander V. Morozov , Andrey N. Putilin , Sergey E. Dubynin , Chilsung Choi , German B. Dubinin , Hongseok Lee , Hoon Song
CPC分类号： G02B6/0025 , G02B5/32 , G02B27/0944 , G02B27/425
摘要： A beam expander includes first and second optical elements spaced apart from each other, and a light diffuser having an angular aperture that diffuses incident light through the angular aperture, wherein the first optical element in-couples the diffused light such that light exiting the first optical element has a first cross-sectional shape and light having a second cross-sectional shape different from the first cross-sectional shape is incident on the second optical element, and the second optical element out-couples light incident from the first optical element.
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公开(公告)号：US20240125987A1
公开(公告)日：2024-04-18
申请号：US18356427
申请日：2023-07-21
申请人： IQS GROUP s.r.o.
发明人： Tomas Behounek
CPC分类号： G02B5/1876 , G02B19/0047 , G02B27/0927 , G02B27/0944 , G02B27/425 , B42D25/324
摘要： An optical element, e.g. based on a diffractive Fresnel lens, having suppressed or reduced chromatic aberration under non-monochromatic light and/or enhanced directional homogenisation in its angular irradiation characteristics, comprises a plurality of optical zones (10, 20), wherein each zone comprises at least one homogenising noise-introducing feature. In embodiments the at least one homogenising noise-introducing feature comprises one or more zonal displacement features, e.g. ripples (20′, 20″) and/or one or more zonal modulation features, e.g. one or more patterning features (30).
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公开(公告)号：US11933956B2
公开(公告)日：2024-03-19
申请号：US17247210
申请日：2020-12-03
发明人： Jörg Siebenmorgen , Ralf Netz
CPC分类号： G02B21/08 , G02B21/16 , G02B27/425 , G02B27/4294
摘要： An illumination apparatus for illuminating a sample plane and a sample that is optionally arranged therein along an illumination beam path includes: a first light source (for outputting light of at least one first wavelength (λphoto), a second light source for outputting light of at least one second wavelength (λexc), and a diffraction grating in the illumination beam path between the first and second light sources and the sample plane. Light of the first wavelength (λphoto) is not diffracted by the diffraction grating, and light of the second wavelength (λexc) is diffracted due to the effect of the diffraction grating. The illumination apparatus can be used in a microscope.
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公开(公告)号：US11915437B1
公开(公告)日：2024-02-27
申请号：US15813608
申请日：2017-11-15
CPC分类号： G06T7/521 , G02B27/0172 , G02B27/425 , G02B5/28 , G02B2027/014 , G02B2027/0127 , G02B2027/0138
摘要： The disclosed depth camera assembly may include a projector device to project light into an imaging environment. The projector device may include a light source and may also include a diffractive optical element that separates light emitted by the light source into a plurality of light regions including a plurality of separate wavelength ranges, such that each of the plurality of light regions contain light from only one of the plurality of separate wavelength ranges. The projector device may also include an interference filter. A head-mounted display system and related methods are also disclosed.
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公开(公告)号：US20230397968A1
公开(公告)日：2023-12-14
申请号：US18456239
申请日：2023-08-25
申请人： Alcon Inc.
发明人： Jochen HORN , Alireza MIRSEPASSI , Ronald T. SMITH
CPC分类号： A61B90/30 , G02B27/425 , G02B27/14 , G02B3/0087 , A61F9/00823 , A61B18/24 , A61B18/20 , A61F9/00821 , A61B2090/306 , A61B2018/2261
摘要： Systems and methods for creating multi-spot laser light beams, multiplexing an illumination light and the multi-spot laser light beams, and delivering the multiplexed light to a surgical handpiece via a multi-core optical fiber cable.
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公开(公告)号：US11644683B2
公开(公告)日：2023-05-09
申请号：US16903397
申请日：2020-06-17
发明人： Chih-Sheng Chang , Meng-Ko Tsai , Teng-Te Huang , Yin-Dong Lu
CPC分类号： G02B27/425 , G02B5/18 , G02B5/1814 , G02B27/4277 , G06V40/16
摘要： The optical component includes a first substrate, a first diffractive layer formed on the first substrate, a second substrate, a second diffractive layer formed on the second substrate, and a bonding material disposed between the first substrate and the second substrate and connecting the first substrate and the second substrate. The second diffractive layer is disposed opposite to the first diffractive layer, and both the first diffractive layer and the second diffractive layer are located between the first substrate and the second substrate. A gap is formed between the first diffractive layer and the second diffractive layer.
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公开(公告)号：US20190250423A1
公开(公告)日：2019-08-15
申请号：US16009672
申请日：2018-06-15
发明人： Yan CHENG
CPC分类号： G02B27/425 , G02B5/0278 , G02B5/1814 , G09G3/32 , G09G2320/0626 , G09G2330/021 , G09G2380/02 , H01L25/167 , H05K1/144 , H05K1/147 , H05K1/189 , H05K2201/041 , H05K2201/10106 , H05K2201/10128 , H05K2201/10166
摘要： Provided is a micro light emitting diode display panel, comprising a flexible substrate, light emitting diodes aligned in an array, a diffraction grating and a light scattering film arranged on the light emitting diodes and light valves arranged above the light scattering film; wherein the flexible substrate comprises a driving circuit, the light emitting diodes are fixed on the flexible substrate; the driving circuit is connected to the light emitting diodes to respectively drive the light emitting diodes to emit white light; the diffraction grating splits the white light emitted by the light emitting diodes to form exiting lights with various wavelengths; the light scattering film gathers an exiting light of a same wavelength in the exiting lights and disperses the exiting lights of different wavelengths to form a primary color light of at least one color; the light valves adjusts an intensity of the primary color light.
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公开(公告)号：US20190086776A1
公开(公告)日：2019-03-21
申请号：US15706060
申请日：2017-09-15
发明人： Ming-Shu Hsiao , Yi-Nung Liu
CPC分类号： G03B21/145 , G01B11/25 , G02B27/0043 , G02B27/425 , G03B21/00 , G03B21/142 , G03B21/147 , G03B21/2033
摘要： A structured-light projector includes a diffractive optical element (DOE) that receives a collimated light and generates a plurality of light tiles. The DOE includes a plurality of optical components disposed on a substrate, wherein the optical components of the DOE are randomly arranged on the substrate.
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公开(公告)号：US09958687B2
公开(公告)日：2018-05-01
申请号：US15071935
申请日：2016-03-16
发明人： Jyh-Long Chern , Chih-Ming Yen
IPC分类号： G02B1/00 , G02B27/09 , G02B3/04 , G01B11/25 , G02B3/00 , G02B27/42 , G02B19/00 , H01S5/00 , H01S5/022
CPC分类号： G02B27/0944 , G01B11/25 , G02B3/0056 , G02B3/04 , G02B19/0052 , G02B27/425 , H01S5/005 , H01S5/02212 , H01S5/02288
摘要： An apparatus of structured light generation is equipped with a light source and a lens unit. The lens unit is installed in a compact housing of the apparatus of structured light generation. Moreover, the lens unit constructed two different optical path lengths within the housing. By the lens unit, light beams from the light source are collimated and converted into linear light beams. The linear light beams are locally overlapped or globally overlapped. Consequently, the light beam from the light source is shaped into a linear structured light or a linearly-overlapped structured light for detection.
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公开(公告)号：US09915764B2
公开(公告)日：2018-03-13
申请号：US14731275
申请日：2015-06-04
申请人： Hitachi Maxell, Ltd.
发明人： Takeshi Shimano , Hiroyuki Kajikawa
CPC分类号： G02B5/1876 , G02B5/1895 , G02B19/0061 , G02B27/425 , G02B27/4288
摘要： An object of the present application is to thin a thick lens used in an automobile headlamp optical system and a projector lighting optical system while maintaining the optical properties of the lens. A diffractive lens includes, on at least one surface, an optical surface with a plurality of areas defined by a plurality of steps. A blaze wavelength of the diffractive lens is within a wavelength spectral range of a light source used. An optical path difference between adjacent areas at the blaze wavelength is larger than a coherence length of the light source. The diffractive lens substantially acts as a Fresnel lens at a wavelength other than the blaze wavelength.
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