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Annular light guide and electronic device with same

A light guide, ring-shaped technology, applied in the direction of light guide, optical components, optics, etc., can solve the problems of configuration constraints, large installation space, etc., and achieve the effect of uniform injection volume

Inactive Publication Date: 2012-02-01
TEAC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this patent document 2, since the width near the light guide part needs to be very large, a large installation space is required, and the layout is restricted.

Method used

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  • Annular light guide and electronic device with same
  • Annular light guide and electronic device with same
  • Annular light guide and electronic device with same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] Such as figure 1 As shown, the portable recorder 2 includes a main body box 3 and a microphone 4 . Microphone 4 is provided with two. In the microphone 4 , a transducer 5 for converting collected sound into an electric signal is accommodated in a microphone case 6 .

[0022] A board 7 is provided inside the main body case 3 , and a CPU 8 for controlling the drive of the portable recorder 2 is mounted on the board 7 .

[0023] An SD card 9 is detachably housed inside the main body case 3, and an electric signal from the microphone 4 is recorded in the SD card 9 as voice data.

[0024] The main body box 3 is provided with an LCD 11, a recording / recording temporary stop button (hereinafter referred to as a recording button) 12, a playback / playback temporary stop button (hereinafter referred to as a playback button) 13, a stop button 14, and a menu button 15. , jog dial (Jog Dial) 16, output terminal 17. In addition, each of the buttons 12 to 15 is constituted by a push...

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PUM

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Abstract

The invention provides a ring-shaped light guide that can illuminate uniformly without requiring a large installation space and electronic equipment with the light guide. A portable recorder consists of a main body box and a microphone. A left LED chip and a right LED chip are mounted on the substrate. A display window is formed on the main body case. The annular light guide includes a left incident part, a right incident part and a light guide part. The left incident part is opposite to the left LED chip, and the right incident part is opposite to the right LED chip. The emitting end of the light guide part is fitted with the display window. A reflective surface for emission that reflects light guided in the light guide toward an emission end is formed in the light guide. A reflective surface for a light guide is formed in the light guide part. The reflective surface for emission is formed such that the longer the distance to each incident portion, the larger the inclination angle, and the larger the width.

Description

technical field [0001] The present invention relates to a ring-shaped light guide for use in a display device or the like showing an operating state of an electronic device for ring-shaped light emission, and an electronic device having the light guide. Background technique [0002] Various display devices are installed in electronic equipment such as recording devices, personal computers, and mobile phones to display the operating status of the electronic equipment and the like. An example of such a display device includes, for example, a device that emits light in a ring so as to surround a push button. In this display device, an annular light guide is used to guide the light from the light emitter. [0003] As a conventional light guide, as disclosed in Patent Document 1, there is known a device in which two light incident portions extending tangentially are provided on a ring-shaped light guide, and light sources are arranged in these light incident portions. The light...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/00
Inventor 松井尚人
Owner TEAC CORP
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