Optics: measuring and testing – By shade or color – With sample responsive to plural colors applied simultaneously
Patent
1986-06-24
1988-03-15
Anderson, Bruce C.
Optics: measuring and testing
By shade or color
With sample responsive to plural colors applied simultaneously
356418, 356425, 382 17, G06K 1100, G06K 712
Patent
active
047309300
ABSTRACT:
A scanner and scanning method for scanning a sheet such as a chart. The scanner includes scanning means and detection means. The scanning means includes means for supporting and mounting the sheet, and illumination means for directing light onto an illuminated area of the sheet, the illuminated area being elongated along a scan direction. The scanning means also includes means for causing the illuminated area to move across the sheet in a movement direction normal the scan direction. The detection means comprises a photodetector array and a coherent fiber optic bundle. The coherent fiber optic is tapered, such that it has a comparatively wide aperture adjacent the illuminated area, and a comparatively small aperture adjacent the photodetector array. In a related aspect, the illuminated area is caused to move in a first direction across the sheet such that the illumination means sequentially directs light onto a series of pixel areas of the sheet. The color of the light is varied such that as the illuminated area moves across the sheet in the first direction, the color of the light alternates between first, second and third illumination colors, thereby alternately illuminating the pixel areas with the illumination colors. An illumination color signal is produced for each pixel area. The processing means detects light reflected from each pixel area to produce an intensity signal, and color processing means combines the illumination color and intensity signal for each pixel area with the same signals from two adjacent pixel areas, to provide a pixel color signal representing a composite color for the pixel area. Means are provided for processing sequences of pixel color signals to eliminate transition colors.
REFERENCES:
patent: 3327287 (1967-06-01), Ball et al.
patent: 3693178 (1972-09-01), Braun et al.
patent: 3709612 (1973-01-01), Clemens
patent: 3718808 (1973-02-01), Kelch et al.
patent: 3809909 (1974-05-01), Salet et al.
patent: 3829660 (1974-08-01), Ruhl
patent: 4053734 (1977-10-01), Yasunaga
patent: 4086600 (1978-04-01), McClure et al.
patent: 4099833 (1978-07-01), Tosswill
patent: 4128755 (1978-12-01), Fairley et al.
patent: 4202599 (1980-05-01), Tosswill
patent: 4280122 (1981-07-01), McKinley et al.
patent: 4299443 (1981-11-01), Minami et al.
patent: 4505589 (1985-03-01), Ott et al.
patent: 4519017 (1985-05-01), Daniel
patent: 4609291 (1986-09-01), Takahashi
Installation and Operation Instructions for Micro Scan Models 276, 281 and 282, 1982 UGC Industries, Inc.
Catalog C0303A from Dolan Jenner Industries, Inc., Components for Scanning and Sensing.
Information sheet from UGC, Maloney Pipeline Products Company, showing Micro Scan 276 and Chart Processor Model 285.
"Fiber Optics: Theory and Applications", Technical Memorandum from Galileo-Electro-Optics Corp.
Brochure from Collimated Holes, Inc., "Fiber Optic Products for Creative Engineering".
Thoreson Robert J.
White Steven J.
Anderson Bruce C.
Guss Paul A.
Technical Arts Corporation
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