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Title:
INSCRIPTION READING DEVICE
Document Type and Number:
Japanese Patent JP2002150275
Kind Code:
A
Abstract:

To provide an inscription reading device capable of certainly reading a latent image of an article to be read.

When the inscription reading device reads a coin A, of a plurality of illuminants 9, only illuminant 9 belong to a partial lighting illuminant portion G1 is switched on first. Then, a part of the coin A surface corresponding to the partial lighting illuminant portion G1 is lighted up, and a CCD camera 6 picks up an image of the lighted-up part, thereby creating a partial image of the coin A surface. Next, the illuminants 9 in partial lighting illuminant portions G2, G3 are switched on in turn, thereby creating corresponding partial images of the coin surface A. Each partial image of the coin A surface is composed to create the whole image of the coin A surface. Therefore, the whole image of the coin A surface wherein a latent image clearly appears can be obtained.


Inventors:
KAMIJO HIDEAKI
USAMI MITSUAKI
SATO TOMONOBU
Application Number:
JP2000348433A
Publication Date:
May 24, 2002
Filing Date:
November 15, 2000
Export Citation:
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Assignee:
NIDEC COPAL CORP
International Classes:
G06T1/00; G06T3/00; G07D5/02; (IPC1-7): G06T1/00; G06T3/00; G07D5/02
Domestic Patent References:
JPH09282513A1997-10-31
JPH09319911A1997-12-12
JPH10222715A1998-08-21
JPH08320450A1996-12-03
JPH07262429A1995-10-13
JPH11203478A1999-07-30
Attorney, Agent or Firm:
Yoshiki Hasegawa (2 outside)



 
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