JPS62128661U

JPS62128661U -

Info

Publication number: JPS62128661U
Application number: JP1645086U
Authority: JP
Priority date: 1986-02-07
Filing date: 1986-02-07
Publication date: 1987-08-14

Description

[Brief explanation of the drawing]

第１図は、本考案に係る半導体レーザ光源の実
施例の構成を示す斜視図、第２図は、従来の走査
型光学式寸法測定装置の全体構成の例を示す、一
部ブロツク線図を含む正面図、第３図は、従来の
装置で用いられている半導体レーザユニツトの構
成を示すブロツク線図、第４図は、前記半導体レ
ーザユニツトにおける、レーザダイオードとフオ
トダイオードの配置の例を示す斜視図、第５図及
び第６図は、本考案の原理を説明するための、モ
ニタ用受光器と計測用受光器の出力の関係の例を
示す線図、第７図は、本考案の実施例における、
モニタ用受光器出力と計測用受光器出力の関係の
例を示す線図である。ＬＤ……レーザダイオード、ＰＤ……フオトダ
イオード、６０……遮蔽板、６０Ａ……ピンホー
ル。 FIG. 1 is a perspective view showing the configuration of an embodiment of a semiconductor laser light source according to the present invention, and FIG. 2 is a partial block diagram showing an example of the overall configuration of a conventional scanning type optical dimension measuring device. 3 is a block diagram showing the configuration of a semiconductor laser unit used in a conventional device, and FIG. 4 shows an example of the arrangement of a laser diode and a photodiode in the semiconductor laser unit. The perspective view, FIGS. 5 and 6 are diagrams showing an example of the relationship between the outputs of the monitor light receiver and the measurement light receiver for explaining the principle of the present invention, and FIG. In the example,
FIG. 3 is a diagram illustrating an example of the relationship between a monitoring light receiver output and a measurement light receiver output. LD...laser diode, PD...photodiode, 60...shielding plate, 60A...pinhole.

Claims

[Scope of Claim for Utility Model Registration] (1) In a semiconductor laser light source formed including a laser semi-moving body for laser generation and a monitoring receiver for monitoring the output of the laser semiconductor, irradiating the outside from the laser semiconductor. 1. A semiconductor laser light source, comprising means for preventing the reflected laser light from being reflected by an external object and entering the monitoring light receiver. (2) The semiconductor laser light source according to claim 1, wherein the incidence blocking means is a shielding plate with a pinhole disposed between the laser semiconductor and the monitoring light receiver.