Registers – Coded record sensors – Particular sensor structure
Patent
1991-06-12
1994-03-01
Hajec, Donald
Registers
Coded record sensors
Particular sensor structure
235462, 235467, 359 17, G06K 710
Patent
active
052910075
ABSTRACT:
An information reader, including a light source for emitting a light beam. A photo-detector detects the light beam after it is reflected from a bar code. A rotatable circular hologram disk scans the light beam in two dimensions and guides the light beam reflected to the photo-detector. A prism deflects the light beam emitted from the light source toward the circular hologram disk. A housing receives the light source, the photo-detector the circular hologram disk and the prism therein. The light source and the prism are integrally detachable from the housing. It is thus easy to adjust the incidence angle of the light beam on the circular hologram disk.
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Chin Esther
Hajec Donald
Nippondenso Co. Ltd.
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