Title:
DIGITAL EXPOSURE DEVICE
Document Type and Number:
Japanese Patent JP3166099
Kind Code:
B2
Abstract:
PURPOSE: To obtain a digital image having a smooth contour by diffusing and transmitting exposure light through a diffusion element and to prevent the pitch irregularity of a SELFOC lens from appearing without increasing the capacity of image data.
CONSTITUTION: In a digital exposure device, applied voltage is supplied to a PLZT element by the control of a line exposure control part and exposure data is exposed to the predetermined dot of the printing paper 2 of a line exposure stage. At this time, the exposure light emitted from an exposure head 41 is transmitted through a diffusion element 41C to diffuse and a photosensitive material 2 is exposed to the diffused exposure light at every dot. Therefore, The image A of a PLZ shutter array is converted to an image A1 having a smooth contour to be recorded on the printing paper 2.
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Inventors:
Masazumi Ishikawa
Tohru Tanabata
Tohru Tanabata
Application Number:
JP1086495A
Publication Date:
May 14, 2001
Filing Date:
January 26, 1995
Export Citation:
Assignee:
Noritsu Koki Co., Ltd.
International Classes:
B41J2/445; G02F1/13; G03B27/32; G03B27/50; H04N1/40; (IPC1-7): G03B27/32; B41J2/445; G02F1/13
Domestic Patent References:
| JP455848A | ||||
| JP4166861A | ||||
| JP496050A | ||||
| JP63239423A | ||||
| JP3180366A | ||||
| JP635970A |
Attorney, Agent or Firm:
Katsunori Sugimoto (1 outside)