ALARM DISPLAY STRUCTURE FOR BURGLAR SENSOR

摘要

PROBLEM TO BE SOLVED: To improve workability in the confirming work of an invasion route or setting work of a detection area by displaying an alarm over wide range by making light from a light source for alarm display incident to an arranged light guide. SOLUTION: A burglar sensor 1 is provided with a base 2, a body 3, a cover 4 and a light guide 5. The light guide 5 is a semitransparent mold and provided with an incident port 50 for making incident light from a light emitting diode 34 or the like. The light made incident from the incident port 50 moves forward while being reflected inside the light guide 5 and the light guide 5 looks like lighting by itself. Then, inside close to the peripheral edge of a round cup-shaped cover 4, the light guides 5 are respectively stuck at diagonal positions over the length of 1/4 periphery at least. Light emitted by the light guide 5 leaks through the semitransparent cover 4 to the outside and there is an effect the small light emitting diode 34 is diagonally expanded over the 1/4 periphery of the cover 4 at least.