Registers – Coded record sensors – Particular sensor structure
Patent
1997-02-07
1999-10-26
Le, Thien Minh
Registers
Coded record sensors
Particular sensor structure
235468, G06K 710
Patent
active
059712767
ABSTRACT:
A method of reading a pattern including steps of heating or irradiating with infrared light a substrate on which a transparent pattern is formed, the pattern containing a material capable of absorbing infrared light of specific wavelength such as polyacrylonitrile, and detecting infrared light which is radiated or reflected from the pattern.
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Nishizawa Hideyuki
Saito Mitsunaga
Sano Kenji
Todori Kenji
Urano Taeko I.
Kabushiki Kaisha Toshiba
Le Thien Minh
Lee Diane I.
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