公开(公告)号：US10816713B2

公开(公告)日：2020-10-27

申请号：US16467685

申请日：2018-02-27

Applicant: Omron Corporation

Inventor： Shinji Miyazaki ,  Kota Yonezawa ,  Masakazu Komano ,  Tetsuo Hayashi ,  Junichiro Tsuji ,  Daido Uchida ,  Koichi Takemura ,  Kazunori Harada ,  Takashi Onishi ,  Kazuhide Hirota ,  Kazuyuki Otake

IPC: G02F1/1333 ,  F21V8/00 ,  F21V29/503 ,  F21V29/508 ,  F21V29/85 ,  F21V29/70 ,  F21S2/00

Abstract: A surface light source device includes a light source; a light guide plate that has a light entrance surface through which light enters, and that emits the light entering through the light entrance surface from a light exit surface; a wiring board; and a metal frame. The metal frame includes a bottom portion having a bottom surface that faces a surface on an opposite side to the light exit surface, a side wall erected on an outer periphery of the bottom surface, and a projecting portion provided on the side wall so as to project toward the bottom surface side. The metal frame houses the light source, the light guide plate, and the wiring board. At least a part of the light source is disposed between the bottom portion and the projecting portion, and the wiring board is disposed between the light source and the bottom portion.

公开(公告)号：US20200064533A1

公开(公告)日：2020-02-27

申请号：US16467685

申请日：2018-02-27

Applicant: Omron Corporation

Inventor： Shinji Miyazaki ,  Kota Yonezawa ,  Masakazu Komano ,  Tetsuo Hayashi ,  Junichiro Tsuji ,  Daido Uchida ,  Koichi Takemura ,  Kazunori Harada ,  Takashi Onishi ,  Kazuhide Hirota ,  Kazuyuki Otake

IPC: F21V8/00 ,  G02F1/1333 ,  F21V29/503 ,  F21V29/70 ,  F21V29/508 ,  F21V29/85

Abstract: A surface light source device includes a light source; a light guide plate that has a light entrance surface through which light enters, and that emits the light entering through the light entrance surface from a light exit surface; a wiring board; and a metal frame. The metal frame includes a bottom portion having a bottom surface that faces a surface on an opposite side to the light exit surface, a side wall erected on an outer periphery of the bottom surface, and a projecting portion provided on the side wall so as to project toward the bottom surface side. The metal frame houses the light source, the light guide plate, and the wiring board. At least a part of the light source is disposed between the bottom portion and the projecting portion, and the wiring board is disposed between the light source and the bottom portion.

公开(公告)号：US20140111743A1

公开(公告)日：2014-04-24

申请号：US13762712

申请日：2013-02-08

Applicant: OMRON CORPORATION

Inventor： Koichi Takemura ,  Takashi Sato ,  Masanori Mori ,  Akira Nagao ,  Tetsuo Hayashi ,  Kazuhide Hirota ,  Gouo Kurata

IPC: G02F1/1335 ,  F21V8/00

CPC classification number: G02F1/133606 ,  F21S2/00 ,  F21S8/00 ,  F21V1/00 ,  F21V17/00 ,  G02B6/0011 ,  G02B6/002

Abstract: An area light source device has a light guide plate having an end face and a light exit surface, a light source that is disposed in a position facing the end face of the light guide plate, a plurality of optical sheets that are disposed on the light guide plate, a light shielding plate that is disposed so as to cover an upper portion of the light source, and a light blocking member that is provided between the end face of the light guide plate and the light exit surface. The end face of the light guide plate is configured to have light introduced therethrough. The light exit surface of the light guide plate is configured to output the light from the light guide plate. The light blocking member is different from the light shielding plate.

Abstract translation: 区域光源装置具有端面和光出射面的导光板，配置在与导光板的端面相对的位置的光源，配置在光的多个光学片 导光板，设置成覆盖光源的上部的遮光板，以及设置在导光板的端面与光出射面之间的遮光部件。 导光板的端面被配置为具有从其导入的光。 导光板的光出射面被配置为输出来自导光板的光。 遮光构件与遮光板不同。

公开(公告)号：US09086595B2

公开(公告)日：2015-07-21

申请号：US13762712

申请日：2013-02-08

Applicant: OMRON Corporation

Inventor： Koichi Takemura ,  Takashi Sato ,  Masanori Mori ,  Akira Nagao ,  Tetsuo Hayashi ,  Kazuhide Hirota ,  Gouo Kurata

IPC: G02F1/1335 ,  F21V8/00 ,  F21S2/00 ,  F21S8/00 ,  F21V1/00 ,  F21V17/00

CPC classification number: G02F1/133606 ,  F21S2/00 ,  F21S8/00 ,  F21V1/00 ,  F21V17/00 ,  G02B6/0011 ,  G02B6/002

Abstract: An area light source device has a light guide plate having an end face and a light exit surface, a light source that is disposed in a position facing the end face of the light guide plate, a plurality of optical sheets that are disposed on the light guide plate, a light shielding plate that is disposed so as to cover an upper portion of the light source, and a light blocking member that is provided between the end face of the light guide plate and the light exit surface. The end face of the light guide plate is configured to have light introduced therethrough. The light exit surface of the light guide plate is configured to output the light from the light guide plate. The light blocking member is different from the light shielding plate.

Abstract translation: 区域光源装置具有端面和光出射面的导光板，配置在与导光板的端面相对的位置的光源，配置在光的多个光学片 导光板，设置成覆盖光源的上部的遮光板，以及设置在导光板的端面与光出射面之间的遮光部件。 导光板的端面被配置为具有从其导入的光。 导光板的光出射面被配置为输出来自导光板的光。 遮光构件与遮光板不同。