JPS6417404U

JPS6417404U -

Info

Publication number: JPS6417404U
Application number: JP11122887U
Authority: JP
Priority date: 1987-07-20
Filing date: 1987-07-20
Publication date: 1989-01-27

Description

[Brief explanation of the drawing]

第１〜４図は本考案の実施例を示すもので、第
１図は光センサ全体の一部破断側面図、第２図は
同一部破断平面図、第３図は第１図−線で切
断した縦断正面図、第４図は該光センサにおける
プリズムの単体斜面図である。また、第５図は本
考案の他の実施例を示す光センサ全体の一部破断
側面図である。更に、第６図は本考案において用
いられる受光素子の単体斜視図、第７，８図は従
来の投光器を夫々示す断面図及び斜視図である。１……光センサ、１０，１０′……投光器、１
２，１２′……プリズム、１２ａ……投光面、１
２ｂ……反射面、１２ｄ……光源取付け面、２２
，２２′……受光素子、２２ａ，２２ａ′……受
光面。 Figures 1 to 4 show an embodiment of the present invention, in which Figure 1 is a partially cutaway side view of the entire optical sensor, Figure 2 is a partially cutaway plan view of the same, and Figure 3 is a line drawn from Figure 1. FIG. 4 is a longitudinal sectional front view and a perspective view of a single prism in the optical sensor. Further, FIG. 5 is a partially cutaway side view of the entire optical sensor showing another embodiment of the present invention. Further, FIG. 6 is a perspective view of a light-receiving element used in the present invention, and FIGS. 7 and 8 are a sectional view and a perspective view, respectively, of a conventional projector. 1... Optical sensor, 10, 10'... Light emitter, 1
2, 12'... Prism, 12a... Light projection surface, 1
2b... Reflective surface, 12d... Light source mounting surface, 22
, 22'... Light receiving element, 22a, 22a'... Light receiving surface.

Claims

[Scope of utility model registration request]

A detection light projecting device for an optical sensor, which is arranged opposite to a light-receiving element having a light-receiving surface elongated in the direction of movement of the mark, sandwiching the passing position of a light-transmitting or light-blocking mark provided on an object to be transported. , is formed of a crystalline synthetic resin that has light transmittance and light scattering property during transmission, and the surface facing the light receiving surface of the light receiving element is a light projecting surface, adjacent to the light projecting surface, and the light receiving element A prism with a reflecting surface whose one side along the longitudinal direction is cut into an inclined shape, and a side surface opposite to the reflecting surface which is a light source mounting surface, and a prism that is connected to the light source mounting surface of the prism directly or through an optical fiber. 1. A detection light projecting device for an optical sensor, comprising: a light source that emits detection light that is internally reflected by the reflecting surface and irradiated from the light projecting surface to the light receiving element side.