Title:
IMAGE READING DEVICE AND IMAGE READING METHOD
Document Type and Number:
WIPO Patent Application WO/2006/011450
Kind Code:
A1
Abstract:
Each emission rate of five LEDs in each of a plurality of continuous accumulation periods in a main scanning direction is changed, based on an emission condition set in a lighting condition register, an emission spectrum of multicolor illuminating light provided by composing light emitted from the five LEDs is made proximate to three kinds of color-matching functions expressed by the standard color space such as CIEXYZ, and reflecting light from an original irradiated with the LEDs is converted into an electric signal by a sensor.
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Inventors:
KAIHOTSU TAKAHIRO (JP)
Application Number:
PCT/JP2005/013583
Publication Date:
February 02, 2006
Filing Date:
July 25, 2005
Export Citation:
Assignee:
CANON COMPONENTS KK (JP)
KAIHOTSU TAKAHIRO (JP)
KAIHOTSU TAKAHIRO (JP)
International Classes:
H04N1/04; G03B27/54; H04N1/028; H04N1/401; H04N1/46; H04N1/60
Foreign References:
| JPH08298571A | 1996-11-12 | |||
| JPH03295353A | 1991-12-26 | |||
| US5753906A | 1998-05-19 | |||
| US20020030837A1 | 2002-03-14 |
Attorney, Agent or Firm:
Ohtsuka, Yasunori (SHUWA KIOICHO PARK BLDG., 3-6, KIOICHO, CHIYODA-K, Tokyo 94, JP)
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