Color copying device with built-in filter

Abstract

Abstract PURPOSE:To accurately and easily execute adjustment for hue control, to reduce light loss and to suppress the generation of uneven color by driving a moving means for executing the color correction of a filter by a pulse signal. CONSTITUTION:Light exposing and scanning an original is made incident upon a photosensitive body through a lens system including a filter. Two front and back color balance filter plates 61, 62 have filters Y, M, C and a colorless transparent part and a position where the centers of the filters 61M, 62C coincide with the optical axis is moved right and left by a stepping motors 65, 65 as a home position. The motors 65, 65 are accurately driven by a pulse signal outputted based on detected color information to determine the insertion level of the filter a diaphragm chip 63 is vertically moved from a diaphragm window 8 by a stepping motor 67 to set up a diaphragm, so that readjustment of a color degree is not required. Since the diaphragm is controlled by the stepping motor, the hue control can be accurately and easily attained, the light loss can be reduced and the generation of uneven color can be suppressed.

Inventors

• 👤 Fumiaki Hiraike
• 👤 平池　文明
• 👤 Takashi Masuda
• 👤 益田　敬司

Bibliographic Details