JPS59152446U - raindrop sensor - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の雨滴センサの略解図、第２図〜第４図は
本考案の一実施例を示し、第２図は略解図、第３図及び
第４図は作用の説明図、第５図〜第６図は本考案の第二
実施例を示し、第５図は略解図、第７図は作用の説明図
である。 ２・・・・・・透明体（ウィンドウガラス）、３・・・
・・・投光部、４・・・・・・受光部、６・・・・・・
プリズム、＄ａ。 ６ｋ・・・・・・面。Fig. 1 is a schematic illustration of a conventional raindrop sensor, Figs. 2 to 4 show an embodiment of the present invention, Fig. 2 is a schematic illustration, Figs. 3 and 4 are illustrations of the operation, 5 to 6 show a second embodiment of the present invention, FIG. 5 is a schematic illustration, and FIG. 7 is an explanatory diagram of the operation. 2... Transparent body (window glass), 3...
...Light emitter, 4...Light receiver, 6...
Prism, $a. 6k... surface.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ウィンドウガラス等の透明体の内側に受光部を配置する
と共に、該透明体の内面にプリズムを取付けて、光源か
ら光を透明体に照射し、眩光の光路が透明体の外面に付
着した雨滴等により変化したときこれを受光部で検知す
るように構成した雨滴センサにおいて、前記プリズムに
、前記透明体から該プリズムに入射した外光が前記受光
部に入射しないように規制する面を形成してなることを
特徴とする雨滴センサ。A light receiving unit is placed inside a transparent body such as a window glass, and a prism is attached to the inner surface of the transparent body, and light from a light source is irradiated onto the transparent body, so that the optical path of the dazzling light can be used to detect raindrops, etc. attached to the outside surface of the transparent body. In the raindrop sensor, the raindrop sensor is configured such that a light receiving section detects the change when the raindrop changes, and the prism is provided with a surface that restricts external light that has entered the prism from the transparent body from entering the light receiving section. A raindrop sensor characterized by: