Title:
WRITING BOARD
Document Type and Number:
Japanese Patent JPH1159066
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To curtail the consumption of electric power in a writing board such as an electronic black board in which the writing surface of a black board main body is lined with a back plate and the writing surface is used for writing. SOLUTION: In a black board main body 10, a transparent writing sheet 13 is spread between right and left rollers which are supported by a base frame. The front side of the sheet 13 is lined with a back plate 20, part of the sheet 13 is exposed to the outside from a front window 12a, and a writing surface P is formed the part. On the front of the back plate 20 is applied a luminescent material 30 of a fluorescent coating for a back light, and the luminescent material 30 is protected by being coated with a transparent coating material 31.
Inventors:
SATO KOICHI
Application Number:
JP23908897A
Publication Date:
March 02, 1999
Filing Date:
August 20, 1997
Export Citation:
Assignee:
RICOH ELEMEX CORP
International Classes:
B43L1/00; B43L1/04; (IPC1-7): B43L1/00; B43L1/04
Attorney, Agent or Firm:
Shunsuke Nakao