Optical reading head

Details Optical reading head Optical reading head

G - Physics

02

B

88/97.72, 352/53

G02B 5/16 (1980.01)

Patent

CA 1038962

ABSTRACT OF THE DISCLOSURE An optical reading head for high speed reading of codes formed by phosphorescent or fluorescent markings. These codes are carried by a support which move past the head at high speed, and the markings are illuminated by light and reflecting light the characteristics of which are altered by the code markings. There are provided optical fibres some of which are responsible for transmitting emitted light capable of exciting the code mark- ings carried by the support which passes in front of the head, and others of which are responsible for picking up the light reflected by the code and for transmitting the same to a proces- sing device. Those fibres are arranged in a unit, one face of which contains two separate openings at which the emitter fibres and the receiver fibres respectively terminate, the opposite face containing a single opening at which the receiver fibres are enclosed by the emitter fibres.

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