Optical read/write head

Details Optical read/write head Optical read/write head

1993-02-19

1995-04-18

Ullah, Akm E.

Optical waveguides

Integrated optical circuit

250216, G02B 600, H01J 314

Patent

active

054085470

ABSTRACT:
An optical read/write head including a cladding layer defining a plurality of parallel, spaced apart optical cores extending therethrough, the cladding layer and cores defining optical input/output surfaces for each optical core and diffraction elements positioned in overlying relationship with the optical input/output surfaces for each optical core. Two rows of the cores being utilized to carry light from sources and the diffraction elements diffracting the light at an angle onto a document, the light reflecting from the document into a third row of cores having diffraction elements that collimate and focus the light onto light detectors.

REFERENCES:
patent: 4172646 (1979-10-01), Matsumoto
patent: 4215924 (1980-08-01), Matsumoto
patent: 4924082 (1990-05-01), Opheij et al.
patent: 4940890 (1990-07-01), Opheij et al.

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