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An optical pick-up device for image processing systems has an objective for generating an optical image of a subject to be registered, an image-to-signal transducer, particularly a CCD camera that converts the optical image into a video signal and an illumination device for illumination of the subje

An optical pick-up device for image processing systems has an objective for generating an optical image of a subject to be registered, an image-to-signal transducer, particularly a CCD camera that converts the optical image into a video signal and an illumination device for illumination of the subject to be registered in incident light. The rugged and high-performance illumination device, that yields an optimum light distribution in the plane of registration, has a plurality of infrared diodes that are arranged with equal spacing on at least one circle coaxial with the optical axis of the objective. It also has at least one annular deflection device that is similarly arranged coaxial with the optical axis. This deflection device concentrates the light emitted by the infrared diodes obliquely onto the subject from all sides.

대표청구항 ▼

An optical pick-up for use in an image processing system, said pick-up means comprising: objective means for generating an optical image of a subject, said objective means having an optical axis; semiconductor means for converting said optical image into electrical signals; illumination means for il

An optical pick-up for use in an image processing system, said pick-up means comprising: objective means for generating an optical image of a subject, said objective means having an optical axis; semiconductor means for converting said optical image into electrical signals; illumination means for illuminating said subject, said illumination means having a plurality of infrared diodes emitting infrared radiation, each of said diodes having an emission intensity, said diodes laterally surrounding said objective means, said plurality of infrared diodes equally spaced around at least one circle, said at least one circle being in coaxial alignment with said optical axis; annular deflection means for deflecting said infrared radiation emitted from said diodes, said annular deflection means obliquely concentrating said infrared radiation emitted from said diodes onto said subject from all sides, means for housing said optical pick-up means, said means for housing having an objective housing and an outer housing.