Electronic blackboard device

Abstract

Abstract PURPOSE:To obtain a ultra-thin device by arranging a light source and a photo-electric transducer at an external part of a sheet corresponding to a roller part. CONSTITUTION:A writable and erasable loop-shaped sheet 6 is stretched and held long from side to side by two rollers 5 and is able to move right and left or up and down by a motor, etc., through the rollers 5. A light source 2 and a photo-electric transducer 4 are arranged at the outward in the transversal direction of the rollers 5, and characters and graphics written on the sheet surface are directly read. Thus, the device can be ultra-thinned, and at the same time, the device is lightened in weight.

Inventors

• 👤 Kenji Jinbo
• 👤 Tetsuo Murakami

Bibliographic Details