Scanner illumination

Details Scanner illumination Scanner illumination

1998-03-31

1999-11-09

Grant, II, Jerome

Image analysis

Image sensing

358505, 358509, 358513, 358475, 358474, H04N 104, H04N 146

Patent

active

059829575

ABSTRACT:
A scanner has a sensor assembly having a sensor to receive light from an image, and which assembly generates an image signal corresponding to the image, which image signal has a plurality of color channel components representative of different spectral regions. A media holder holds a media carrying the image. An illuminator to illuminate the image of a held media such that light from the image falls on the sensor. The illuminator has a plurality of sets of light emitting elements to provide illumination in all of the spectral regions, each set having a different spectral output with at least a first set having plural sub-sets of different spectral output within a first one of the spectral region represented by the color channels, the number of different spectral output elements being greater than the number of color channels. The illuminator also has an integrator between the array and the media holder so as to improve uniformity of the illumination from the illuminator which illuminates the image. A method of calibrating a scanner, and a method of scanning images using a scanner are also provided.

REFERENCES:
patent: 3760174 (1973-09-01), Boenning et al.
patent: 3923394 (1975-12-01), Frankiewicz
patent: 4013915 (1977-03-01), Dufft
patent: 4255042 (1981-03-01), Armitage, Jr. et al.
patent: 4589766 (1986-05-01), Fursich et al.
patent: 4658303 (1987-04-01), Nagano
patent: 4672219 (1987-06-01), Iwabuchi et al.
patent: 4689691 (1987-08-01), Isogai et al.
patent: 4725889 (1988-02-01), Yaniv et al.
patent: 4745465 (1988-05-01), Kwon
patent: 4791493 (1988-12-01), Ogura et al.
patent: 4826269 (1989-05-01), Streifer et al.
patent: 4931860 (1990-06-01), Narumiya
patent: 4954914 (1990-09-01), Karita et al.
patent: 4963933 (1990-10-01), Brownlee
patent: 5001609 (1991-03-01), Gardner et al.
patent: 5003379 (1991-03-01), Moore, Jr. et al.
patent: 5012346 (1991-04-01), DeJager et al.
patent: 5032960 (1991-07-01), Katoh
patent: 5099359 (1992-03-01), Hrycin et al.
patent: 5191406 (1993-03-01), Brandestini et al.
patent: 5229870 (1993-07-01), Inoguchi
patent: 5255171 (1993-10-01), Clark
patent: 5268752 (1993-12-01), Fukada
patent: 5283425 (1994-02-01), Imamura
patent: 5313289 (1994-05-01), Nagane et al.
patent: 5420712 (1995-05-01), Maeda et al.
patent: 5436464 (1995-07-01), Hayano et al.
patent: 5444520 (1995-08-01), Murano
patent: 5450120 (1995-09-01), Nishio
patent: 5537229 (1996-07-01), Brandestini et al.
patent: 5548120 (1996-08-01), Parker et al.
patent: 5568225 (1996-10-01), Tazawa et al.
patent: 5589953 (1996-12-01), Tazawa et al.
patent: 5654809 (1997-08-01), Beeman
Scientific American, Nonimaging Optics by Roland Winston, Mar. 1991, pp. 76-81.
Journal of Applied Photographic Engineering, vol. 9, No. 2, Apr. 1983, "The Influence of Film, Paper, and Printer Spectral Characteristics on Photofinishing Performance", by W.C. Kress and P.J. Alessi, pp. 58-62.
Journal of the Optical Society of America, vol. 40, No. 2, Feb. 1950, "Objectives and Methods of Density Measurement in Sensitometry of Color Films", by Franklin C. Williams, Kodak Research Labs, pp. 104-112.

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