OPTICAL FORMATION DEVICE AND METHOD

Title:

OPTICAL FORMATION DEVICE AND METHOD

Document Type and Number:

WIPO Patent Application WO/1999/024241

Kind Code:

A1

Abstract:

A small and low cost optical formation device. Many blue LEDs are prepared. Optical fibers are connected to the respective LEDs. GRIN lenses are attached to the tips of the respective optical fibers to construct an exposure head (23). The images of the tip surfaces of the respective optical fibers are projected onto an exposure region (24) made of photosetting resin as light spots (55) by the exposure head (23). The diameter of each light spot (55) is, for instance, 0,5 mm. The size of each pixel (71) in the exposure region (24) is much smaller, for instance 62,5 $g(m)m. Many optical fibers on the exposure head (23) are arranged into a zigzag matrix so as to arrange the light spots (55) in the vertical scanning direction (Y-axis) with the pitch 62,5 $g(m)m of the pixels. While the exposure head (23) is scanning the exposure region (24) in the horizontal scanning directon (X-axis), all the light spots by which light can be applied to the object pixels (71) to be cured in the exposure region (24) are turned on for multiplex exposure.

Inventors:

ARAI MAHITO (JP)
NIINO TOSHIKI (JP)
NAKAGAWA TAKEO (JP)

Application Number:

PCT/JP1998/005024

Publication Date:

May 20, 1999

Filing Date:

November 09, 1998

Export Citation:

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Assignee:

NTT DATA CORP (JP)
RIKAGAKU KENKYUSHO (JP)
ARAI MAHITO (JP)
NIINO TOSHIKI (JP)
NAKAGAWA TAKEO (JP)

International Classes:

B29C35/08; B29C67/00; B29C41/02; B29C69/00; B29K105/24; (IPC1-7): B29C67/00

Foreign References:

JPH0985836A	1997-03-31
JPH01237121A	1989-09-21
JPH05301293A	1993-11-16
JPH04305438A	1992-10-28

Other References: