Title:
電子部品の導光構造
Document Type and Number:
Japanese Patent JP6863586
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a light guide structure of electronic component capable of illuminating the operation part of operation knob easily and reliably, without illuminating the operation part of operation knob directly by a light guide for introducing the light emitted from a light-emitting device.SOLUTION: From an opening 305 provided in a fourth case 300, operation part 101 on the circumference of an operation knob 100 is exposed partially. Light emitted from a light-emitting device 169 installed on a circuit board 160 is introduced into a light guide 190 installed on the side of the circuit board 160 where the light-emitting device 169 is installed and reflected internally, before being emitted from the light emission surface 195. A light guide part A1 for knob connecting the shaft 111 of the operation knob 100 and operation part 101 optically is provided, and the light emitted from the light emission surface 195 of the light guide 190 is entered from a light incident surface 117 located on the shaft 111 side of the light guide part A1 for knob and guided to the operation part 101.SELECTED DRAWING: Figure 2
Inventors:
Yoshiharu Tsukahara
Satoshi Kuwahara
Naoki Hayashi
Satoshi Kuwahara
Naoki Hayashi
Application Number:
JP2017149197A
Publication Date:
April 21, 2021
Filing Date:
August 01, 2017
Export Citation:
Assignee:
Teikoku Communication Industry Co., Ltd.
International Classes:
H01H19/02; H01H9/04; H01H9/18
Domestic Patent References:
| JP2001236861A | ||||
| JP2014146490A | ||||
| JP2016091806A |
Attorney, Agent or Firm:
Yu Takagi
Takashi Kumagai
Takashi Kumagai