Vision system with fiber optic plate to detilt oblique images

Details Vision system with fiber optic plate to detilt oblique images Vision system with fiber optic plate to detilt oblique images

1994-05-27

1996-06-11

Bovernick, Rodney B.

Optical waveguides

Optical fiber bundle

Fiber bundle plate

25022728, G02B 608

Patent

active

055264581

ABSTRACT:
A light directing element (22) used in a Scheimpflug system (10, 12, 14, 16, 18) includes an array of closely packed optical fibers (40) formed as a plate (34) having essentially parallel entrance and exit sides (36, 38), the axis (44) of each fiber of the array being essentially perpendicular to the exit side and at a first oblique angle (.gamma.) to a normal to the entrance side, the normal to the entrance side being at a second oblique angle (.alpha.) to the first axis; so that, each fiber receives light from the first optical system, each fiber being curved between the entrance and exit sides. Oblique objects can be viewed in real time using electronic detectors (28-32) which receive light emitted from the exit side. Objects with topographical features (11) may be viewed by providing the entrance side with an optically conjugate surface of topography (23).

REFERENCES:
patent: 4099833 (1978-07-01), Tosswill
patent: 4492424 (1985-01-01), Clegg
patent: 4867530 (1989-09-01), Sedlmayr
patent: 4943157 (1990-07-01), Reding
patent: 5010241 (1991-04-01), Butterworth
patent: 5032023 (1991-07-01), Schneiter
patent: 5102226 (1992-04-01), Yoshimura et al.
patent: 5164603 (1992-11-01), Hartman et al.
patent: 5347122 (1994-09-01), Ansorge et al.

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