JPH0275762U

JPH0275762U -

Info

Publication number: JPH0275762U
Application number: JP15553988U
Authority: JP
Priority date: 1988-11-29
Filing date: 1988-11-29
Publication date: 1990-06-11

Description

[Brief explanation of the drawing]

第１図ａ，ｂおよびｃは、この考案によるレー
ザ光源ユニツトの危険防止装置の実施例の構造図
、第２図は第１図に対する表示灯の点灯制御回路
図、第３図はレーザ光源ユニツトを使用する測長
器の構成図である。１……レーザ光源ユニツト、１ａ……筐体、１
ｂ……レーザ発振素子、１ｃ……コリメータレン
ズ、１ｄ……ビームスプリツタ、１ｅ……射出窓
、２……測長器、３……測定対象物、４……シヤ
ツター、５……赤色表示灯、６……レーザ素子電
源、６ａ……端子、７……リレー、８……点灯電
源。 Figures 1a, b, and c are structural diagrams of an embodiment of the danger prevention device for the laser light source unit according to this invention, Figure 2 is a lighting control circuit diagram of the indicator light compared to Figure 1, and Figure 3 is the laser light source unit. FIG. 2 is a configuration diagram of a length measuring device that uses 1... Laser light source unit, 1a... Housing, 1
b... Laser oscillation element, 1c... Collimator lens, 1d... Beam splitter, 1e... Exit window, 2... Length measuring device, 3... Measurement object, 4... Shutter, 5... Red display Light, 6... Laser element power supply, 6a... Terminal, 7... Relay, 8... Lighting power supply.

Claims

[Scope of utility model registration request]

In a laser light source unit comprising a laser light source of invisible light housed in a rectangular hexahedral housing, a shutter capable of arbitrarily blocking the laser light is provided in a laser light exit window provided on the side surface of the housing, and the laser light source is provided with a shutter that can arbitrarily block the laser light; A danger prevention device for a laser light source unit, characterized in that a red indicator light indicating that the laser light source is emitting light is provided on the side surface where the window is provided and on the top surface of the casing.