Waveguide type compact optical scanner and manufacturing method

Details Waveguide type compact optical scanner and manufacturing method Waveguide type compact optical scanner and manufacturing method

1996-07-09

1998-05-05

Le, Que

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

2502272, 250235, 385 32, H01J 516

Patent

active

057477965

ABSTRACT:
A waveguide type reduction type image sensor has a waveguide type light source having a light emitting element and a substrate including optical waveguides having a planar waveguide and a tapered waveguide. The waveguide type reduction type image sensor also has a light detecting section having a microlens array, an optical waveguide substrate and a CCD array. The microlens array converges reflected light from an original onto the incident face of the optical waveguide substrate. The optical waveguide substrate has L-shaped optical waveguides for guiding the converged light to the CCD array located on a substrate face perpendicular to the incident face. The CCD array converts the guided light to an electric signal and outputs this electric signal. A manufacturing method of this waveguide type reduction type image sensor is also shown.

REFERENCES:
patent: 5093874 (1992-03-01), Hawkins et al.
J. Yamauchi et al., "Beam-Propagation Analysis of Bent Step-Index Slab Waveguides", Electronics Letters, vol. 26, No. 12, pp. 822-824, published on Jun. 7, 1990.

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