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公开(公告)号：US20220196545A1
公开(公告)日：2022-06-23
申请号：US17690836
申请日：2022-03-09
Inventor： Kosuke IMAWAKA , Hiroyuki FURUYA , Akira KUROZUKA
Abstract: A moisture sensing device includes: a light source part; a projection optical system configured to project illumination light emitted from the light source part, onto a road surface; a photodetector configured to receive reflected light of the illumination light reflected by the road surface; a light-receiving optical system configured to condense the reflected light onto the photodetector; and an optical element configured to align the optical axis of the projection optical system and the optical axis of the light-receiving optical system with each other in a range on the road surface side.
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Patent Agency Ranking
公开(公告)号：US20190228705A1
公开(公告)日：2019-07-25
申请号：US16242594
申请日：2019-01-08
Inventor： Hiroyuki FURUYA , Susumu URAGAMI , Yuta YAMAMOTO , Akira KUROZUKA , Mitsutaka YAMAGUCHI
IPC: G09G3/3233 , G02B27/01 , G02B5/08 , G02B26/12 , G03B21/20
Abstract: An image display device includes: a light source emitting laser light; a screen on which an image is drawn by being two-dimensionally scanned by the laser light; a scanner causing the laser light to scan the screen; a light detector detecting a light amount of the laser light emitted from the light source; and a controller controlling the light source by changing a current value to drive the light source in response to a target light amount. The controller obtains a detection signal when driving the light source at a plurality of current setting values from the light detector, and corrects the current value with respect to the target light amount according to an arithmetic operation configured to suppress a difference between an output characteristic of the light source guessed by the obtained detection signal and a reference output characteristic.
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公开(公告)号：US20160131895A1
公开(公告)日：2016-05-12
申请号：US14898722
申请日：2015-01-30
Inventor： Akira KUROZUKA , Akihiro MORIKAWA , Toshiaki HORIE , Shinsuke NAKAZONO
CPC classification number: G02B26/105 , G02B26/0858 , G02B27/0006
Abstract: An optical device includes: an optical element having an optically functional surface which is pivotable; a base supporting the optical element; and a package housing the optical element and the base, in which the package includes: a wall that surrounds the optical element and the base; a window that closes a first opening defined by the wall, and forms an optical path to the optically functional surface, the window being transmissive to light; and a bottom plate that closes a second opening defined by the wall.
Abstract translation: 光学装置包括：具有可枢转的光学功能表面的光学元件; 支撑光学元件的基座; 以及容纳光学元件和基座的封装，其中所述封装包括：围绕所述光学元件和所述基座的壁; 关闭由壁限定的第一开口的窗口，并且形成到光学功能表面的光路，窗口是透光的; 以及封闭由壁限定的第二开口的底板。
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公开(公告)号：US20200004015A1
公开(公告)日：2020-01-02
申请号：US16570203
申请日：2019-09-13
Inventor： Ken'ichi KASAZUMI , Toshiya MORI , Hiroaki OKAYAMA , Satoshi KUZUHARA , Hiroyuki FURUYA , Hiroshi GOTOU , Akira KUROZUKA
Abstract: A display device is provided and may include a light source that emits a light beam, a scanner that causes the light beam to scan, a movable screen in which an image is formed by transmitting the light beam from scanner, an optical system configured to project the image on a display medium, and a driver configured to cause the movable screen to reciprocate in moving directions. The image includes a first image and a second image. The movable screen reciprocates in a posture inclined with respect to the moving directions such that a second end of the movable screen is positioned closer to the scanner than a first end of the movable screen. The scanner forms the second image in the movable screen while the movable screen moves such that a forming direction of the second image is inclined with respect to a direction approaching the scanner.
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公开(公告)号：US20230305312A1
公开(公告)日：2023-09-28
申请号：US18200934
申请日：2023-05-23
Inventor： Tatsuo ITOH , Akira KUROZUKA
IPC: G02B27/48 , G02F1/1335 , G02F1/13357
CPC classification number: G02B27/48 , G02F1/133607 , G02F1/133611 , G02B3/005
Abstract: An image display device includes: a laser light source; a first lens that converges a laser beam emitted from the laser light source, in a first direction; a second lens that converges the laser beam emitted from the laser light source, in a second direction perpendicular to the first direction; a spatial light modulator irradiated with the laser beam that has passed through the first lens and the second lens; a first vibrator that vibrates the first lens along a first vibration plane; and a second vibrator that vibrates the second lens along a second vibration plane non-parallel to the first vibration plane.
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公开(公告)号：US20220244177A1
公开(公告)日：2022-08-04
申请号：US17726697
申请日：2022-04-22
Inventor： Akira KUROZUKA , Tatsuo ITOH , Kosuke IMAWAKA , Hiroyuki FURUYA
IPC: G01N21/3554 , G01N21/47 , G01N21/359 , G08G1/00
Abstract: An optical device includes: a light source part configured to project illumination light toward a sensing region; a photodetector configured to receive reflected light of the illumination light reflected on the sensing region; and a condenser mirror. The condenser mirror has a through hole through which the illumination light from the light source part passes and an optical axis of the light source part and an optical axis of the condenser mirror are aligned with each other. A reflection surface of the condenser mirror has a shape obtained by cutting out a columnar body extending in a projection direction of the illumination light, with a spheroid whose rotation axis is a major axis. The photodetector is disposed in a direction toward a first focal position of the condenser mirror. The sensing region is set in a direction toward a second focal position of the condenser mirror.
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