JPS59152449U

JPS59152449U - raindrop sensor

Info

Publication number: JPS59152449U
Application number: JP4743483U
Authority: JP
Inventors: 安田　重和; 久保田　一久
Original assignee: 株式会社東海理化電機製作所
Priority date: 1983-03-31
Filing date: 1983-03-31
Publication date: 1984-10-12

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

[Brief explanation of drawings]

第１図は従来の雨滴センサの略解図、第２図は雨滴で光
が全反射する場合の説明図、第３図〜第６図は本考案の
第一実施例を示し、第３図は略解図、第４図〜第６図は
作用の説萌図、第７図及び第８図は本考案の第二実施例
を示し、第７図は略解図ζ第８図はその作用の説明図で
ある。２・・・・・・透明体（ウィンドウガラス）、５・・・
・・・雨滴、６・・・・・・プリズム、７・・・・・・
凸レンズ、８・・・・・・撮像素子、９・・・・・・処
理回路。第４図第５図Fig. 1 is a schematic diagram of a conventional raindrop sensor, Fig. 2 is an explanatory diagram of the case where light is totally reflected by raindrops, Figs. 3 to 6 show the first embodiment of the present invention, and Fig. 3 is 4 to 6 are diagrams for explaining the operation, Figures 7 and 8 show the second embodiment of the present invention, Figure 7 is a schematic diagram, and Figure 8 is an explanation of the operation. It is a diagram. 2... Transparent body (window glass), 5...
...Raindrops, 6...Prism, 7...
Convex lens, 8...imaging element, 9...processing circuit. Figure 4 Figure 5

Claims

[Scope of utility model registration request]

(1) A prism is attached to the inner surface of a transparent body such as a window glass, and an image of raindrops, etc. attached to the outer surface of the transparent body is attached to the inside of the transparent body, or the optical path of the light irradiated to the transparent body is 1. A raindrop sensor comprising a detector that recognizes brightness and darkness patterns caused by changes in the raindrop sensor.

(2) The raindrop sensor according to claim 1, wherein the detector is constituted by an image sensor or a group of photoelectric conversion elements.