Patent Number: 6,486,974

Title: Image reading device

Abstract: This invention provides an image reading device capable of precise detection of the optical signal over a wide wavelength range, by forming a photoelectric converting unit for converting the visible light into an electrical signal and a photoelectric converting unit for converting the invisible light into an electrical signal, in monolithic manner on a single semiconductor chip.

Inventors: Nakai; Takehiko (Tokyo, JP), Tanioka; Hiroshi (Yokohama, JP), Arimoto; Shinobu (Yokohama, JP), Yoshinaga; Kazuo (Machida, JP), Hayashi; Toshio (Kawasaki, JP), Utagawa; Tsutomu (Yokohama, JP), Nagase; Tetsuya (Kawasaki, JP), Sasanuma; Nobuatsu (Yokohama, JP)

Assignee: Canon Kabushiki Kaisha

International Classification: H04N 1/48 (20060101); G07D 7/12 (20060101); G07D 7/00 (20060101); G07D 7/20 (20060101); H04N 1/00 (20060101); H04N 1/028 (20060101); G06F 015/00 (); H04N 001/46 ()

Expiration Date: 11/26/2011