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公开(公告)号：US09880053B2
公开(公告)日：2018-01-30
申请号：US14883097
申请日：2015-10-14
Inventor： Takamasa Ando , Tsuguhiro Korenaga
CPC classification number: G01J3/14 , G01J3/0208 , G01J2003/2813 , G01J2003/2826 , G02B3/0062
Abstract: An image pickup apparatus includes an encoder which is arranged on an optical path of light incident from an object and which has a plurality of regions with first light transmittance and a plurality of regions with second light transmittance lower than the first light transmittance, a dispersive element which is arranged on an optical path of at least one part of light after passage through the encoder and which spatially shifts the at least one part of the light in accordance with wavelength, and at least one image pickup device which is arranged to receive light after passage through the dispersive element and light without passage through the dispersive element and which acquires a first image, in which light components for respective wavelengths spatially shifted by the dispersive element are superimposed, and a second image based on the light without passage through the dispersive element.
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公开(公告)号：US09762874B2
公开(公告)日：2017-09-12
申请号：US14977322
申请日：2015-12-21
Inventor： Takamasa Ando , Tsuguhiro Korenaga
CPC classification number: H04N9/64 , H04N1/60 , H04N5/23232 , H04N5/332 , H04N9/045
Abstract: An imaging apparatus according to an aspect of the present disclosure includes an image sensor which, in operation, acquires m kinds (m is an integer which is 1 or larger) of light, the m kinds of light each having wavelength characteristic different from each other and outputs one or more signals each corresponding to each of the m kinds of light, and a signal processing circuit which, in operation, processes the one or more signals to generate and output n, which is larger than m, pieces of images corresponding to respective wavelength regions different from each other.
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公开(公告)号：US12276760B2
公开(公告)日：2025-04-15
申请号：US17809029
申请日：2022-06-27
Inventor： Takamasa Ando , Shunsuke Imai
IPC: G01S7/4865 , G01S17/10 , G01S17/89
Abstract: A distance-measuring device includes a light source, a light detector, and a circuit. The circuit causes the light source to output a light pulse toward a target object, causes the light detector to detect a reflection-light pulse in a first period and a second period to generate a first signal and a second signal, respectively, and generates and outputs data indicating a distance from the light detector to the target object based on the two signals. The first period includes at least a part of a rise period, from a first point at which an intensity of the reflection-light pulse starts increasing to a second point at which the increase ends, and the first point. The second period includes at least a part of a fall period, from a third point at which the intensity starts decreasing to a fourth point at which the decrease ends, and the fourth point.
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公开(公告)号：US11965778B2
公开(公告)日：2024-04-23
申请号：US17357421
申请日：2021-06-24
Inventor： Toshiya Fujii , Takamasa Ando
IPC: G01J3/28 , A61B5/00 , G01B11/24 , G01J3/02 , G01J3/12 , G01N21/47 , G01N21/64 , G01N21/65 , G01S17/89
CPC classification number: G01J3/2823 , A61B5/0075 , G01B11/24 , G01J3/0229 , G01J3/2803 , G01J3/2846 , G01J3/2889 , G01N21/65 , G01S17/89 , A61B5/0042 , G01J2003/1213 , G01J2003/2826 , G01N2021/4797 , G01N21/64
Abstract: An optical filter including filter regions arrayed two-dimensionally, in which the filter regions include a first region and a second region; a wavelength distribution of an optical transmittance of the first region has a first local maximum in a first wavelength band and a second local maximum in a second wavelength band that differs from the first wavelength band, and a wavelength distribution of an optical transmittance of the second region has a third local maximum in a third wavelength band that differs from each of the first wavelength band and the second wavelength band and a fourth local maximum in a fourth wavelength band that differs from the third wavelength band.
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公开(公告)号：US11559205B2
公开(公告)日：2023-01-24
申请号：US16782090
申请日：2020-02-05
Inventor： Takamasa Ando , Teruhiro Shiono , Masaaki Yanagida
Abstract: A biological measuring device includes a light source that emits first light illuminating an area on a living body, an imaging device that detects second light returned from the living body and acquires a first image including at least part of the living body, and a control circuit that controls the light source. If a specific part of the living body is not located in a predetermined coordinate range in the first image, the control circuit restricts emission of the first light from the light source. The predetermined coordinate range is set outside the area.
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Patent Agency Ranking
公开(公告)号：US11557148B2
公开(公告)日：2023-01-17
申请号：US16985261
申请日：2020-08-05
Inventor： Masato Suzuki , Takamasa Ando
Abstract: A system includes: a light source that emits pulsed light that illuminates a user's head portion; a photodetector that detects at least part of pulsed light returning from the head portion and that outputs one or more signals corresponding to an intensity of the at least part; electrical circuitry; and a memory that stores an emotion model indicating a relationship between the one or more signals and emotions. Based on a change in the one or more signals, the electrical circuitry selects an emotion by referring to the model. The one or more signals include a first signal corresponding to an intensity of first part of the reflection pulsed light and a second signal corresponding to an intensity of second part of the reflection pulsed light. The first part includes part before a falling period is started; and the second part includes at least part in the falling period.
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公开(公告)号：US11272166B2
公开(公告)日：2022-03-08
申请号：US16597382
申请日：2019-10-09
Inventor： Kunio Nobori , Satoshi Sato , Takeo Azuma , Takamasa Ando , Tsuguhiro Korenaga , Toshiya Fujii
IPC: H04N13/282 , H04N13/106 , H04N13/189 , H04N13/207 , G02B27/46 , H04N13/218 , G02B23/02 , H04N13/271 , G06T7/11 , G06T7/70 , H04N13/00
Abstract: An imaging apparatus includes an imaging device, a first imaging optical system and a second imaging optical system that form respective input images from mutually different viewpoints onto the imaging device, and a first modulation mask and a second modulation mask that modulate the input images formed by the first imaging optical system and the second imaging optical system. The imaging device captures a superposed image composed of the two input images that have been formed by the first imaging optical system and the second imaging optical system, modulated by the first modulation mask and the second modulation mask, and optically superposed on each other, and the first modulation mask and the second modulation mask have mutually different optical transmittance distribution characteristics.
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公开(公告)号：US10531015B2
公开(公告)日：2020-01-07
申请号：US16054187
申请日：2018-08-03
Inventor： Takamasa Ando
Abstract: An imaging apparatus includes a light source that emits pulsed light, a reflective encoding device, and an image sensor. The reflective encoding device includes first and second films each having light-transmitting property and light-reflecting property and a modulator disposed between the first and second films. The modulator includes modulation regions arrayed in one plane intersecting an optical path of the pulsed light and each modulating at least one of a degree of polarization, a phase, and an intensity of incident light. The image sensor receives light from a target and outputs one or more electric signals representing an image of the target on the basis of the light from the target. The reflective encoding device allows the pulsed light to undergo multiple reflection between the first and second films and allows a portion of the pulsed light to be emitted through the second film in multiple instances.
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公开(公告)号：US10446600B2
公开(公告)日：2019-10-15
申请号：US15915111
申请日：2018-03-08
Inventor： Satoshi Sato , Hisashi Watanabe , Takeo Azuma , Kunio Nobori , Nobuhiko Wakai , Takamasa Ando
Abstract: An imaging system serving as an image generation device is provided with: a random color filter array that has a plurality of concave lenses and a plurality of color filters having different transmission characteristics; a photodiode that receives light that has passed through the random color filter array; an AD converter that converts the light received by the photodiode into digital data; and a color image generation circuit that generates an image using the digital data and modulation information of the random color filter array, in which the plurality of concave lenses are located between the plurality of color filters and the photodiode, or the plurality of color filters are located between the plurality of concave lenses and the photodiode.
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公开(公告)号：US10270998B2
公开(公告)日：2019-04-23
申请号：US15834039
申请日：2017-12-06
Inventor： Tatsuya Nakamura , Takamasa Ando , Teruhiro Shiono
Abstract: An imaging apparatus includes: a light source that emits a light pulse onto an object, and a light detector that detects a reflected light pulse returning from the object. The light detector detects a first part of the reflected light pulse in a first period, and detects a second part of the reflected light pulse in a second period that starts after the first period. The first period includes at least a part of a rising period, the rising period being a period from start to end of increase of intensity of the reflected light pulse. The second period includes a part of a falling period, starts after start of the falling period and does not include the start of the falling period, the falling period being a period from start to end of decrease of the intensity.
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