JPH0213381U

JPH0213381U -

Info

Publication number: JPH0213381U
Application number: JP1988090269U
Authority: JP
Priority date: 1988-07-07
Filing date: 1988-07-07
Publication date: 1990-01-26

Description

[Brief explanation of drawings]

第１図はこの考案の実施例にかかるリモコン送
信機を示す一部破断した斜視図、第２図は第１図
の前面フイルタ付近の拡大断面図、第３図は同実
施例の発光出力特性を説明するための平面図、第
４図は従来のリモコン送信機を示す一部破断した
斜視図、第５図は第４図の前面フイルタ付近の拡
大断面図、第６図は従来の発光出力特性を説明す
るための平面図である。１…ケース、１Ａ…開口部、５…発光ダイオー
ド（発光素子）、６…赤外線信号（光信号）、１
０…前面フイルタ（透光板）、１０ａ…内表面、
１０ｂ…外表面、１１…凹凸、Ａ…発信方向。な
お、各図中、同一符号はそれぞれ同一または相当
部分を示す。 Fig. 1 is a partially cutaway perspective view showing a remote control transmitter according to an embodiment of this invention, Fig. 2 is an enlarged sectional view of the vicinity of the front filter of Fig. 1, and Fig. 3 is a light emitting output characteristic of the same embodiment. Fig. 4 is a partially cutaway perspective view showing a conventional remote control transmitter, Fig. 5 is an enlarged sectional view of the vicinity of the front filter in Fig. 4, and Fig. 6 is a conventional light emitting output. FIG. 3 is a plan view for explaining characteristics. 1... Case, 1A... Opening, 5... Light emitting diode (light emitting element), 6... Infrared signal (light signal), 1
0...Front filter (transparent plate), 10a...Inner surface,
10b...outer surface, 11...irregularities, A...transmission direction. Note that in each figure, the same reference numerals indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

A light-emitting element that emits an optical signal forward, a case that houses the light-emitting element and has an opening at the front, and a transparent plate attached to the opening of the case, and the optical signal from the light-emitting element is emitted through the transparent plate. 1. A remote control transmitter that transmits a signal to a receiver via a light plate, characterized in that the outer or inner surface of the light-transmitting plate is formed to have an uneven surface.