公开(公告)号：US20170250037A1

公开(公告)日：2017-08-31

申请号：US15521704

申请日：2015-10-28

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tsuyoshi TANAKA ,  Hideaki ETO ,  Masami ITO ,  Shohroh MOCHIDA ,  Shinji KADORIKU

IPC: H01H9/18 ,  H01H3/08 ,  F21V8/00 ,  G05G1/08

CPC classification number: H01H9/182 ,  B60R16/02 ,  G02B6/0068 ,  G02B6/0076 ,  G05G1/08 ,  H01H3/08 ,  H01H19/025 ,  H01H25/065 ,  H01H2219/039 ,  H01H2219/044 ,  H01H2219/056 ,  H01H2219/062 ,  H01H2221/01

Abstract: An input operation device according to the present disclosure includes first to third light-emitting sections, a first light guide body, and a second light guide body. A lower end of the first light guide body faces the first light-emitting section and the second light-emitting section. The first mark emits light on the first light guide body when light is incident on the first light guide body from the first light-emitting section, and the second mark emits light on the first light guide body when light is incident on the first light guide body from the second light-emitting section. The upper surface section of the second light guide body emits light when light is incident on the second light guide body from the third light-emitting section. At least one of the first light-emitting section, the second light-emitting section, and the third light-emitting section can change light emission luminance.

公开(公告)号：US20150346413A1

公开(公告)日：2015-12-03

申请号：US14763269

申请日：2014-03-20

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Shinji KADORIKU ,  Ryoma MURASE

IPC: F21V8/00

CPC classification number: G02B6/0016 ,  F21S8/02 ,  F21S8/04 ,  F21V2200/00 ,  F21Y2101/00 ,  F21Y2105/00 ,  F21Y2115/10 ,  G02B6/0001 ,  G02B6/0045

Abstract: A light guide plate 40 comprises: an annular part 41 formed in an annular shape along an element array of multiple light emitting elements 22; and an annular inner part 42 formed on an annular inside of the annular part 41 continuously with the annular part 41. The annular part 41 comprises: an element array-facing part 44 which is a part facing the element array and which has an incident surface 44b to allow light emitted from the light emitting elements 22 to enter; and a first reflecting part 45 which is a part located closer to the annular inner part than the element array-facing part 44, and which has a reflecting surface for reflecting the light entering from the incident surface 44b toward the annular inner part 42. The first reflecting part 45 comprises a first light scattering region 45b having a light scattering treatment applied thereto.

Abstract translation: 导光板40包括：沿着多个发光元件22的元件阵列形成为环形的环形部分41; 以及环形部分42，环形部分42与环形部分41连续地形成在环形部分41的环形内部。环形部分41包括：元件阵列对置部分44，其是面向元件阵列的部分，并且具有入射表面 44b以允许从发光元件22发射的光进入; 以及与元件阵列相对部分44相比更靠近环形内部的部分的第一反射部45，并且具有用于将从入射表面44b进入的光反射到环形内部部分42的反射表面。 第一反射部45包括施加了光散射处理的第一光散射区域45b。