Patent ID: 6111668
Filing Date: 2000-08-29
Classification: H04N

Abstract:
A scanner which comprises a body case and a cover case, and which can read information from a reflection type reading object on the basis of reflection of illumination light, and from a transmission type reading object on the basis of transmission of the illumination light, wherein said scanner further comprises:a conveying mechanism for conveying the reflection type reading object and the transmission type reading object between said body case and said cover case in a predetermined direction;an illumination system, disposed in said body case, for emitting the illumination light toward the reflection type reading object, and forming a first linear illuminated portion on the reflection type reading object, said linear illuminated portion linearly elongating in a direction perpendicular to the conveying direction;an illumination light guide plate, disposed in said cover case, for guiding the illumination light emitted from said illumination system and forming a second linear illuminated portion on the transmission type reading object; andan image receiving system, disposed in said body case, for receiving images of said objects in said first and second linear illuminated portions;wherein said illumination light guide plate is configured as a single optical member including:an entrance portion for the illumination light emitted from said illumination system;an emission portion which is disposed separated from said entrance portion in the conveying direction, and which emits the illumination light toward the transmission type reading object; anda light guide portion through which said entrance portion is optically connected to said emission portion.