公开(公告)号：US20180284449A1

公开(公告)日：2018-10-04

申请号：US15924910

申请日：2018-03-19

Applicant: SEIKO EPSON CORPORATION

Inventor： Takeshi SHIMIZU ,  Makiko HINO ,  Shuichi WAKABAYASHI

IPC: G02B27/01 ,  G02B27/14 ,  G02B27/28

Abstract: The image display apparatus includes a light attenuation section that reflects a portion of light emitted from a light source and a scanning section that scans the light reflected by the light attenuation section. The light attenuation section transmits a portion of light emitted from the light source. The light attenuation section has reflectance and transmittance and the reflectance is smaller than the transmittance. The image display apparatus further includes a light receiving element on which the light transmitted through the light attenuation section is incident. The image display apparatus also includes a control section that controls activation of the light source in accordance with detection results of the light receiving element.

公开(公告)号：US20200309516A1

公开(公告)日：2020-10-01

申请号：US16831918

申请日：2020-03-27

Applicant: Seiko Epson Corporation

Inventor： Shuichi WAKABAYASHI

IPC: G01B11/25 ,  B25J19/02

Abstract: There is provided a three-dimensional measuring apparatus that performs three-dimensional measurement of an object using laser light, the apparatus including: a laser light source that emits the laser light; a line generating lens that widens and emits the laser light into line laser light having a first luminance distribution having a higher luminance at an edge portion than a luminance at a center portion in an extending direction; a mirror that swings around a swing axis, reflects the line laser light, and projects pattern light onto a projection surface including the object; an imaging portion that captures an image of the projection surface on which the pattern light is projected and acquires a pattern image; and a measuring portion that obtains a three-dimensional shape of the object based on the pattern image.

公开(公告)号：US20190389065A1

公开(公告)日：2019-12-26

申请号：US16451121

申请日：2019-06-25

Applicant: Seiko Epson Corporation

Inventor： Hirosada HORIGUCHI ,  Shuichi WAKABAYASHI ,  Makiko HINO ,  Kei KAMAKURA

IPC: B25J9/16 ,  G01B11/25

Abstract: A robot controller is a robot controller that couples a three-dimensional measuring device configured to perform three-dimensional measurement of an object using a laser beam and a human detection sensor configured to detect a person based on an image obtained by imaging a detection range including the object, the robot controller including a human detection signal receiver configured to receive, from the human detection sensor, a signal indicating that the person is present within the detection range and a robot arm controller configured to control a robot arm based on the signal. When the human detection signal receiver receives, from the human detection sensor, the signal indicating that the person is present within the detection range, the robot arm controller controls the robot arm to set an emitting direction of the laser beam to a direction different from a direction of the person.

公开(公告)号：US20190094017A1

公开(公告)日：2019-03-28

申请号：US16140744

申请日：2018-09-25

Applicant: Seiko Epson Corporation

Inventor： Shuichi WAKABAYASHI ,  Makiko HINO ,  Yasushi MIZOGUCHI

IPC: G01B11/25 ,  B25J9/16 ,  B25J13/08 ,  B25J19/02

CPC classification number: G01B11/254 ,  B25J9/1697 ,  B25J13/087 ,  B25J19/022 ,  G05B19/401 ,  G05B2219/37555 ,  G05B2219/37571 ,  G05B2219/40564

Abstract: A robot system including: one or two robot arms which perform work on a target; a shape measurement device which is disposed on the robot arm and measures a shape of the target; and a controller which controls the robot arm based on the shape measurement device, in which the shape measurement device includes a projection device which projects striped pattern light onto the target, an image capturing unit which captures the image of the pattern light, and a processor which calculates the shape of the target based on the captured image by the image capturing device, and in which the projection device includes a light source device which emits linear laser, an optical scanner which generates the pattern light by reflecting the laser from the light source device and by scanning the target, and a scanner driver which outputs a driving signal to drive the optical scanner non-resonantly.

公开(公告)号：US20160252742A1

公开(公告)日：2016-09-01

申请号：US15049713

申请日：2016-02-22

Applicant: Seiko Epson Corporation

Inventor： Shuichi WAKABAYASHI

IPC: G02B27/42 ,  G02B27/01 ,  G02B27/00 ,  F21V8/00

CPC classification number: G02B27/4227 ,  G02B6/0026 ,  G02B26/085 ,  G02B26/101 ,  G02B27/0081 ,  G02B27/0103 ,  G02B27/0172 ,  G02B27/4277 ,  G02B2027/0125 ,  G02B2027/0174 ,  G02B2027/0178

Abstract: An image display device includes: a video light generation unit that generates video light modulated based on a video signal; a light diffraction unit (first diffraction optical element) that diffracts the video light emitted from the video light generation unit; a light scanning unit (light scanner) that spatially scans the video light; and a reflection unit that includes a light diffraction unit (second diffraction optical element) that diffracts video light scanned by the light scanning unit. A light reflection unit included in the light scanning unit is configured by the light diffraction unit. In the light diffraction unit, an interference fringe pitch is preferably constant. The light diffraction unit has portions in which interference fringe pitches are mutually different.

Abstract translation: 图像显示装置包括：视频光生成单元，其生成基于视频信号进行了调制的视频光; 衍射从视频光发生单元发射的视频光的光衍射单元（第一衍射光学元件）; 空间扫描视频光的光扫描单元（光扫描器）; 以及包括衍射由光扫描单元扫描的视频光的光衍射单元（第二衍射光学元件）的反射单元。 包含在光扫描单元中的光反射单元由光衍射单元构成。 在光衍射单元中，干涉条纹间距优选​​为常数。 光衍射单元具有干涉条纹间距彼此不同的部分。