公开(公告)号：US10816714B2

公开(公告)日：2020-10-27

申请号：US16326822

申请日：2017-08-22

Applicant: Omron Corporation

Inventor： Yuto Mori ,  Gouo Kurata ,  Norikazu Kitamura

IPC: F21V8/00 ,  F21S2/00 ,  F21S43/00 ,  F21S41/00 ,  F21S45/00

Abstract: A light guide element includes: an incidence surface wherefrom light enters from a light source; a first reflection surface configured to totally reflect at least a portion of the light entering from the incidence surface; a second reflection surface configured to totally reflect at least a portion of the light totally reflected by the first reflection surface as parallel light; and an emission surface configured to emit the parallel light totally reflected by the second reflection surface.

公开(公告)号：US10712586B2

公开(公告)日：2020-07-14

申请号：US16220842

申请日：2018-12-14

Applicant: OMRON Corporation

Inventor： Yoshihiko Takagi ,  Norikazu Kitamura ,  Mitsuru Okuda

IPC: G02B27/22 ,  G02B3/08 ,  G02B30/27 ,  F21S2/00 ,  G09F13/18 ,  G09F19/12 ,  G02B30/00 ,  G02B30/35 ,  F21V8/00 ,  G03B35/24

Abstract: An optical device includes a light guide plate configured to guide light within a plane parallel to an emission surface, and a plurality of deflectors configured to deflect light guided thereto by the light guide plate, causing light forming an image in a space outside the light guide plate to exit from the emission surface. Each deflector in the plurality of deflectors cause the light to exit from the emission surface toward a direction substantially converging onto a single convergence point or convergence line in the space, or to substantially radiate from a single convergence point or convergence line in the space. The convergence point or the convergence line is mutually different among the plurality of deflectors with a grouping of a plurality of the convergence points or the convergence lines forming the image in the space.

公开(公告)号：US10459283B2

公开(公告)日：2019-10-29

申请号：US15899696

申请日：2018-02-20

Applicant: OMRON Corporation

Inventor： Masayuki Shinohara ,  Norihisa Kanzaki ,  Takuma Iwase ,  Yoshihiko Takagi ,  Takaaki Suzumura ,  Takahiro Morichi ,  Norikazu Kitamura

IPC: G02F1/1335 ,  F21V8/00

Abstract: A display device includes a transparent liquid crystal panel configured to allow an object arranged at the rear surface to be viewed from the front surface; a first polarizer arranged on at least one of the front surface and the rear surface of the transparent liquid crystal panel; a light source; a light guide element arranged at the other of the front surface and the rear surface of the transparent liquid crystal panel; a second polarizer arranged between the light guide element and the transparent liquid crystal panel, or between the light guide element and the light source and arranged to not block at least a portion of light transmitted through the light guide element via the object; and a controller.

公开(公告)号：US10429942B2

公开(公告)日：2019-10-01

申请号：US15985399

申请日：2018-05-21

Applicant: OMRON Corporation

Inventor： Masayuki Shinohara ,  Yasuhiro Tanoue ,  Norikazu Kitamura ,  Gouo Kurata

IPC: G06F3/01 ,  F21V8/00 ,  G06F3/042

Abstract: An input device includes: a movement detector that detects a user movement; and an image projector that forms a zone image in a space to present a region where the movement detector detects movement; and the image projector includes a first light source; and a first light guide plate which includes a light emitting surface and directs light entering from the first light source so that the light exits from the light emitting surface and forms an image in a space.

公开(公告)号：US20190179161A1

公开(公告)日：2019-06-13

申请号：US16309830

申请日：2017-06-16

Applicant: OMRON Corporation

Inventor： Masayuki Shinohara ,  Yasuhiro Tanoue ,  Gouo Kurata ,  Yoshihiko Takagi ,  Tsuyoshi Arai ,  Norikazu Kitamura ,  Mitsuru Okuda ,  Takahiro Morichi

IPC: G02B27/22 ,  F21V8/00

Abstract: An optical device includes a planar-image forming unit configured to emit light that forms a planar image of a predetermined shape in a space, and an outline-image forming unit configured to emit light that forms an outline image with a light intensity different from the light intensity of the planar image at the outer-edge region of the planar image.

公开(公告)号：US10139549B2

公开(公告)日：2018-11-27

申请号：US14552035

申请日：2014-11-24

Applicant: OMRON Corporation

Inventor： Yoshihiko Takagi ,  Masayuki Shinohara ,  Yoshimasa Osumi ,  Norikazu Kitamura

IPC: F21V7/04 ,  F21V8/00

Abstract: A light guide body configured to guide light that enters therein has a light exit surface through which light from the at least one light source exits, and a plurality of linearly arranged pattern groups, each of which has a plurality of linearly arranged reflection patterns that reflect the light from the at least one light source toward the light exit surface. At least one of the plurality of linearly arranged pattern groups differs from at least another of the plurality of linearly arranged pattern groups in light amount difference. The light amount difference is a difference between an amount of light which reaches an observer of the light exit surface after being reflected by each of the plurality of linearly arranged pattern groups and an amount of light which reaches the observer through a region which is adjacent to each of the plurality of linearly arranged pattern groups.

公开(公告)号：US20180067248A1

公开(公告)日：2018-03-08

申请号：US15808695

申请日：2017-11-09

Applicant: OMRON Corporation

Inventor： Masayuki Shinohara ,  Yasuhiro Tanoue ,  Norikazu Kitamura ,  Mitsuru Okuda ,  Kazuyuki Okada ,  Norihisa Kanzaki ,  Takuma Iwase

IPC: F21V8/00 ,  G02B3/08

CPC classification number: G02B6/0036 ,  G02B3/08 ,  G02B5/18 ,  G02B6/003 ,  G02B6/006 ,  G02B6/122 ,  G02B27/22 ,  G02B27/2292

Abstract: An optical device has a light guide plate configured to guide light within a plane parallel to an emission surface thereof, and a plurality of optical deflectors arranged two-dimensionally within a plane parallel to the emission surface. Each of the optical deflectors deflects light propagating through the light guide plate, and causes the emission surface to output light forming an image in a space. Each of the optical deflectors is configured to spread the light incident thereon that has an intensity distribution corresponding to an image in a direction orthogonal to the light guide direction of the light guide plate in a plane parallel to the emission surface, and cause the emission surface to output the light which groups the light from the plurality of optical deflectors arranged along a direction orthogonal to the light guide direction, such that light radiating from the image is formed.

公开(公告)号：US09864128B2

公开(公告)日：2018-01-09

申请号：US14528240

申请日：2014-10-30

Applicant: OMRON Corporation

Inventor： Yoshihiko Takagi ,  Masayuki Shinohara ,  Yoshimasa Osumi ,  Norikazu Kitamura

IPC: F21V8/00

CPC classification number: G02B6/0068 ,  G02B6/0036 ,  G02B6/006

Abstract: A light guide body configured to guide light from a light source that enters the light guide body has a light exit surface having at least one light emitting region from which light from the light source is emitted, and a plurality of reflection patterns arranged in a reflection region of a counter surface facing the light exit surface. The reflection region is a region corresponding to the at least one light emitting region. The reflection region has at least a first reflection region that reflects light in a first direction, and a second reflection region that reflects light in a second direction differing from the first direction.

公开(公告)号：US20180003998A1

公开(公告)日：2018-01-04

申请号：US15709181

申请日：2017-09-19

Applicant: OMRON Corporation

Inventor： Masayuki Shinohara ,  Norikazu Kitamura ,  Yasuhiro Tanoue ,  Mitsuru Okuda ,  Kazuyuki Okada

IPC: G02B27/22 ,  F21V8/00

CPC classification number: G02B27/2242 ,  G02B3/08 ,  G02B5/00 ,  G02B5/18 ,  G02B6/0023 ,  G02B6/0036 ,  G02B6/0058 ,  G02B6/006 ,  G02B27/22 ,  G03B35/24

Abstract: An optical device includes a light guide plate configured to guide light within a plane parallel to an emission surface, and a plurality of light focusing portions to which the light guide plate guides directional light. Each of the plurality of light focusing portions is provided with an optical surface configured to create from the directional light incident thereon emission light in a direction substantially converging on a single convergence point or convergence line in a space or to create emission light that substantially diverges from a single convergence point of convergence line in a space and exits from the emission surface. The plurality of light focusing portions are provided near the emission surface of the light guide plate, and each of the plurality of light focusing portions is formed along a predetermined line within a plane parallel to the emission surface.

公开(公告)号：US09798063B2

公开(公告)日：2017-10-24

申请号：US14683681

申请日：2015-04-10

Applicant: OMRON Corporation

Inventor： Masayuki Shinohara ,  Norikazu Kitamura ,  Kazuhide Hirota

IPC: F21V8/00 ,  G02F1/1335

CPC classification number: G02B6/0018 ,  G02B6/002 ,  G02B6/0028 ,  G02B6/0038 ,  G02B6/005 ,  G02B6/0058 ,  G02F1/133524 ,  G02F1/133602 ,  G02F1/133615

Abstract: A light guide plate has a light conducting portion having a light input surface for introducing light into the light guide plate, a main light guiding body that is thinner than a maximum thickness of the light conducting portion, and disposed continuously from the light conducting portion, a slanted surface that is disposed on the light conducting portion on at least one of a surface near a light output surface and a surface opposite the surface near the light output surface, and that is inclined from a section of the light guide plate that is thicker than the main light guiding body toward an end of the main light guiding body, two cylindrical surfaces that cut into the slanted surface, and a groove formed by the two cylindrical surfaces.