Illumination device for picture read-in

Abstract

Abstract PURPOSE:To increase the intensity of illumination at the low temperature, by making the width of opening is the narrowest at the center of a fluorescent light and that gradually increases toward the ends of the fluorescent light, and opposing this opening to the original read-in surface. CONSTITUTION:The width of an opening 11 of a thermal conductor 10 is narrower at the center and gradually increases toward the both ends. Further, the opening 11 of the thermal conductor 10 is located toward a read-in position to illuminate the read-in position. Thus, since the width of opening is made wide at the both ends where the luminous intensity is low conventionally, the difference of the luminous intensity between the both ends and the center can almost be made negligible in the range used for actual read-in.

Inventors

• 👤 Michinori Nagahiro
• 👤 Yoshiteru Namoto
• 👤 Mitsuo Ishii

Bibliographic Details