Title:
ILLUMINATOR
Document Type and Number:
Japanese Patent JPS5668870
Kind Code:
A
Abstract:
A system for uniformly illuminating a field of information is provided for optical character readers having a scanning device loosely constrained in movement. Lamps are symmetrically located about the optical axis of a sensor and enclosed within an illuminator. The sides of the illuminator converge at one end to port having dimensions defined by the field to be viewed. A plate between the lamps and the sensor partially encloses the second end of the illuminator with an aperture therein symmetrical to the optical axis of the sensor. The sides of two opposite walls of the illuminator adjacent to the port are cut out to remove a portion thereof to eliminate internal reflections and to give the operator a better view of the information to be scanned.
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Inventors:
MEDOFUOODO DEYUAN SANA
Application Number:
JP13451680A
Publication Date:
June 09, 1981
Filing Date:
September 29, 1980
Export Citation:
Assignee:
RECOGNITION EQUIPMENT INC
International Classes:
G06K7/10; G06V10/12; (IPC1-7): G06K9/24