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公开(公告)号：US10809541B2
公开(公告)日：2020-10-20
申请号：US16578859
申请日：2019-09-23
Applicant: Dai Nippon Printing Co., Ltd.
Inventor： Makio Kurashige , Kazutoshi Ishida , Tomoe Takanokura , Yasuyuki Ooyagi
Abstract: An illumination device includes an optical element including a hologram recording medium capable of diffusing a coherent light beam, the hologram recording medium comprising a plurality of regions, each region diffusing a coherent light beam to an illuminated region corresponding to that region, and an irradiation device configured to irradiate the optical element with the coherent light beam so as to allow the coherent light beam to scan the hologram recording medium. The coherent light beam incident to a position existing in each region of the hologram recording medium is diffused to an entire region of the illuminated region corresponding to the region in order to illuminate the entire region of the illuminated region.
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公开(公告)号：US10523902B2
公开(公告)日：2019-12-31
申请号：US16021969
申请日：2018-06-28
Applicant: DAI NIPPON PRINTING CO., LTD.
Inventor： Makio Kurashige , Kazutoshi Ishida , Tomoe Takanokura , Yasuyuki Oyagi
Abstract: A laser beam (L50) is reflected by a light beam scanning device (60) and irradiated onto a hologram recording medium (45). On the hologram recording medium (45), an image (35) of a linear scatter body is recorded as a hologram by using reference light that converges on a scanning origin (B). The light beam scanning device (60) bends the laser beam (L50) at the scanning origin (B) and irradiates the laser beam onto the hologram recording medium (45). At this time, by changing a bending mode of the laser beam with time, an irradiation position of the bent laser beam (L60) on the hologram recording medium (45) is changed with time. Diffracted light (L45) from the hologram recording medium (45) produces a reproduction image (35) of the linear scatter body on a light receiving surface (R) of the stage 210. When an object is placed on the light receiving surface (R), a line pattern is projected by hologram reproduction light, so that the projected image is captured and a three-dimensional shape of the object is measured.
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公开(公告)号：US10228573B2
公开(公告)日：2019-03-12
申请号：US15214743
申请日：2016-07-20
Applicant: Dai Nippon Printing Co., Ltd.
Inventor： Makio Kurashige , Kazutoshi Ishida , Tomoe Takanokura , Yasuyuki Ooyagi
IPC: G02B27/48 , H04N9/31 , G02B26/12 , G02B26/08 , G03B21/20 , G03H1/00 , G03H1/22 , G03H1/32 , G02B27/10 , G02B5/02 , G02B26/10
Abstract: Provided are a projection device and a projection-type video display device capable of displaying a plurality of videos, allowing speckles to be inconspicuous, and miniaturizing an optical system. A projection device includes an optical element including light diffusion elements capable of diffusing light, an irradiation device configured to irradiate the optical element with illumination light beams, each illumination light beam scanning the corresponding light diffusion element, spatial light modulators, each spatial light modulator being illuminated with illumination light beam which is incident from the irradiation device to each light diffusion element to be diffused, and projection optical systems, each projection optical system projecting modulation image obtained on each spatial light modulator on corresponding screen. The illumination light beam, which is incident to each position of each light diffusion element to be diffused, overlappedly illuminates on corresponding spatial light modulator.
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公开(公告)号：US09423627B2
公开(公告)日：2016-08-23
申请号：US14939406
申请日：2015-11-12
Applicant: DAI NIPPON PRINTING CO., LTD.
Inventor： Makio Kurashige , Kazutoshi Ishida , Tomoe Takanokura , Yasuyuki Ooyagi
IPC: G02B27/48 , H04N9/31 , G02B26/12 , G02B26/08 , G03B21/20 , G03H1/00 , G03H1/22 , G03H1/32 , G02B27/10
CPC classification number: G02B27/48 , G02B5/0252 , G02B26/0816 , G02B26/103 , G02B26/105 , G02B26/123 , G02B26/124 , G02B27/1066 , G03B21/2033 , G03B21/2046 , G03B21/2066 , G03B21/208 , G03H1/00 , G03H1/22 , G03H1/2286 , G03H1/32 , G03H2222/36 , H04N9/3129 , H04N9/3147 , H04N9/315 , H04N9/3161 , H04N9/3164
Abstract: Provided are a projection device and a projection-type video display device capable of displaying a plurality of videos, allowing speckles to be inconspicuous, and miniaturizing an optical system. A projection device includes an optical element including light diffusion elements capable of diffusing light, an irradiation device configured to irradiate the optical element with illumination light beams, each illumination light beam scanning the corresponding light diffusion element, spatial light modulators, each spatial light modulator being illuminated with illumination light beam which is incident from the irradiation device to each light diffusion element to be diffused, and projection optical systems, each projection optical system projecting modulation image obtained on each spatial light modulator on corresponding screen. The illumination light beam, which is incident to each position of each light diffusion element to be diffused, overlappedly illuminates on corresponding spatial light modulator.
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公开(公告)号：US10146183B2
公开(公告)日：2018-12-04
申请号：US15162971
申请日：2016-05-24
Applicant: Dai Nippon Printing Co., Ltd.
Inventor： Makio Kurashige , Kazutoshi Ishida , Tomoe Takanokura , Yasuyuki Ooyagi
IPC: G03H1/26 , G02B5/32 , G02B26/10 , G02B27/48 , G03B21/20 , G03B33/06 , G03H1/22 , G03H1/32 , H04N9/31 , G03H1/00
Abstract: An optical device including a hologram recording medium that can reproduce an image of a reference member and an irradiation unit that emits a coherent light beam to the optical device. The irradiation unit includes a light source for emitting a coherent light beam and a scanning device capable of adjusting a reflection angle of the coherent light beam emitted from the light source and that makes a reflected coherent light beam scan the hologram recording medium. The light source has light sources for emitting coherent light beams having different wavelength ranges. The hologram recording medium has a plurality of recording areas to be scanned with a plurality of coherent light beams reflected by the scanning device, respectively. Each of the plurality of recording areas has an interference fringe that diffracts a coherent light beam of the corresponding wavelength range.
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Patent Agency Ranking
公开(公告)号：US20180283635A1
公开(公告)日：2018-10-04
申请号：US15993816
申请日：2018-05-31
Applicant: Dai Nippon Printing Co., Ltd.
Inventor： Masayuki SEKIDO , Satoshi Mitsuzuka , Tomoe Takanokura , Chiaki Obata , Saya Amemiya , Michiya Suzuki
CPC classification number: F21S11/007 , E06B9/01 , E06B9/28 , E06B2009/2417 , F21V9/04
Abstract: A daylighting system includes a sheet-like light control member disposed on at least an upper part of a daylighting opening, and a shade disposed oppositely to at least a part of the opening, the part being below the part where the light control member is disposed. The light control member is configured to change upward a traveling direction of incident light and allow the incident light to pass through the light control member.
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公开(公告)号：US10051243B2
公开(公告)日：2018-08-14
申请号：US14799038
申请日：2015-07-14
Applicant: DAI NIPPON PRINTING CO., LTD.
Inventor： Makio Kurashige , Kazutoshi Ishida , Tomoe Takanokura , Yasuyuki Oyagi
IPC: H04N7/18
CPC classification number: H04N7/18 , G01B11/24 , G01B11/25 , G01B11/2518 , G02B27/48 , G03H1/0005 , G03H1/0443 , G03H1/2286 , G03H1/32 , G03H2001/0033 , G03H2001/0413 , G03H2001/0415 , G03H2001/0439 , G03H2001/2231 , G03H2001/2234 , G03H2001/2255 , G03H2001/2292 , G03H2210/11 , G03H2210/20 , G03H2222/36 , G03H2222/42 , G03H2222/54 , G03H2222/56 , G03H2223/14
Abstract: A laser beam (L50) is reflected by a light beam scanning device (60) and irradiated onto a hologram recording medium (45). On the hologram recording medium (45), an image (35) of a linear scatter body is recorded as a hologram by using reference light that converges on a scanning origin (B). The light beam scanning device (60) bends the laser beam (L50) at the scanning origin (B) and irradiates the laser beam onto the hologram recording medium (45). At this time, by changing a bending mode of the laser beam with time, an irradiation position of the bent laser beam (L60) on the hologram recording medium (45) is changed with time. Diffracted light (L45) from the hologram recording medium (45) produces a reproduction image (35) of the linear scatter body on a light receiving surface (R) of the stage 210. When an object is placed on the light receiving surface (R), a line pattern is projected by hologram reproduction light, so that the projected image is captured and a three-dimensional shape of the object is measured.
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8.发明申请公开(公告)号：US20150316892A1
公开(公告)日：2015-11-05
申请号：US14799038
申请日：2015-07-14
Applicant: DAI NIPPON PRINTING CO., LTD.
Inventor： Makio KURASHIGE , Kazutoshi Ishida , Tomoe Takanokura , Yasuyuki Oyagi
CPC classification number: H04N7/18 , G01B11/24 , G01B11/25 , G01B11/2518 , G02B27/48 , G03H1/0005 , G03H1/0443 , G03H1/2286 , G03H1/32 , G03H2001/0033 , G03H2001/0413 , G03H2001/0415 , G03H2001/0439 , G03H2001/2231 , G03H2001/2234 , G03H2001/2255 , G03H2001/2292 , G03H2210/11 , G03H2210/20 , G03H2222/36 , G03H2222/42 , G03H2222/54 , G03H2222/56 , G03H2223/14
Abstract: A laser beam (L50) is reflected by a light beam scanning device (60) and irradiated onto a hologram recording medium (45). On the hologram recording medium (45), an image (35) of a linear scatter body is recorded as a hologram by using reference light that converges on a scanning origin (B). The light beam scanning device (60) bends the laser beam (L50) at the scanning origin (B) and irradiates the laser beam onto the hologram recording medium (45). At this time, by changing a bending mode of the laser beam with time, an irradiation position of the bent laser beam (L60) on the hologram recording medium (45) is changed with time. Diffracted light (L45) from the hologram recording medium (45) produces a reproduction image (35) of the linear scatter body on a light receiving surface (R) of the stage 210. When an object is placed on the light receiving surface (R), a line pattern is projected by hologram reproduction light, so that the projected image is captured and a three-dimensional shape of the object is measured.
Abstract translation: 激光束（L50）被光束扫描装置（60）反射并照射到全息图记录介质（45）上。 在全息记录介质（45）上，通过使用会聚在扫描原点（B）上的参照光，将线状散射体的图像（35）记录为全息图。 光束扫描装置（60）将激光束（L50）在扫描原点（B）弯曲，并将激光束照射到全息图记录介质（45）上。 此时，通过随时间改变激光束的弯曲模式，全息图记录介质（45）上的弯曲激光束（L60）的照射位置随时间变化。 来自全息图记录介质（45）的衍射光（L45）在平台210的光接收表面（R）上产生线性散射体的再现图像（35）。当物体被放置在光接收表面 ），通过全息图再现光投影线图案，从而捕获投影图像，并测量对象的三维形状。
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公开(公告)号：US20190056694A1
公开(公告)日：2019-02-21
申请号：US16169005
申请日：2018-10-24
Applicant: Dai Nippon Printing Co., Ltd.
Inventor： Makio KURASHIGE , Kazutoshi Ishida , Tomoe Takanokura , Yasuyuki Ooyagi
IPC: G03H1/26 , H04N9/31 , G02B5/32 , G02B26/10 , G02B27/48 , G03B21/20 , G03B33/06 , G03H1/22 , G03H1/32 , G03H1/00
Abstract: An optical device including a hologram recording medium that can reproduce an image of a reference member and an irradiation unit that emits a coherent light beam to the optical device. The irradiation unit includes a light source for emitting a coherent light beam and a scanning device capable of adjusting a reflection angle of the coherent light beam emitted from the light source and that makes a reflected coherent light beam scan the hologram recording medium. The light source has light sources for emitting coherent light beams having different wavelength ranges. The hologram recording medium has a plurality of recording areas to be scanned with a plurality of coherent light beams reflected by the scanning device, respectively. Each of the plurality of recording areas has an interference fringe that diffracts a coherent light beam of the corresponding wavelength range.
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公开(公告)号：US10156732B2
公开(公告)日：2018-12-18
申请号：US15786053
申请日：2017-10-17
Applicant: DAI NIPPON PRINTING CO., LTD.
Inventor： Makio Kurashige , Kazutoshi Ishida , Tomoe Takanokura , Yasuyuki Oyagi
IPC: G03B21/20 , H04N9/31 , G02B27/48 , G02B3/00 , G03H1/32 , G03H1/22 , G03H1/00 , G03B33/06 , G02B5/32 , G02B5/02
Abstract: A laser beam (L50) generated by a laser light source (50) is reflected by a light beam scanning device (60) and irradiated onto a hologram recording medium (45). On the hologram recording medium (45), an image (35) of a scatter plate is recorded as a hologram by using reference light that converges on a scanning origin (B). The light beam scanning device (60) bends the laser beam (L50) at the scanning origin (3) and irradiates the laser beam onto the hologram recording medium (45). At this time, scanning is carried out by changing a bending mode of the laser beam with time so that an irradiation position of the bent laser beam (L60) on the hologram recording medium (45) changes with time. Regardless of an irradiation position of the beam, diffracted light (L45) from the hologram recording medium (45) produces a reproduction image (35) of the scatter is plate on the spatial light modulator (200). The modulated image of the spatial light modulator (200) is projected onto a screen (400) by a projection optical system (300).
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