Title:
COPYING DEVICE
Document Type and Number:
Japanese Patent JPS6346433
Kind Code:
A
Abstract:
PURPOSE: To reduce glare at the time of exposure by arranging a long wavelength transmission type filter between a flash lamp and a copying sheet.
CONSTITUTION: The long wavelength transmission type filter 9 is stuck to the whole surface of a platen glass l opposed to the flash lamp 7. Light beams from the flash lamp 7 are interrupted by the filter 9 to transmit visual light or light included in a wavelength area longer than the visual light and cut off light included on the short wavelength side. Thereby, only infrared rays are leaked, and even if light in the visual area is leaked, the light is red light and glare is not sensed.
Inventors:
TAGIWA IZUMI
Application Number:
JP18954186A
Publication Date:
February 27, 1988
Filing Date:
August 14, 1986
Export Citation:
Assignee:
RICOH KK
International Classes:
B41M5/382; B41M5/26; B41M5/46; G03B27/02; G03B27/16; (IPC1-7): B41M5/26; G03B27/02; G03B27/16
Attorney, Agent or Firm:
Takehisa Ito
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