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Patent Searching and Data


Title:
MANUFACTURING PROCESS, OPTICAL ARTICLE, PICTURE PROJECTION SCREEN, AND IMAGE PROJECTION DEVICE OF OPTICAL ARTICLE
Document Type and Number:
Japanese Patent JP2007290273
Kind Code:
A
Abstract:

To provide a high-quality optical article having an optical element such as a minute fresnel lens, a lenticular lens, a microlens array or a prism lens shape.

The manufacturing process of the optical article comprises: a step 101 of applying a radiation curing resin solution 20 on a planar mold 1; a step 102 of leveling to smooth the resin solution using a translucent substrate film 15 larger than the planar mold; a step 103 of squeezing with a pressure roll 6 from the opposite side of the application side of the resin solution of the translucent substrate film, leveling the resin solution on the translucent substrate film and sucking the resin solution extruded from the mold while smoothing; a step 104 of irradiating radiation from the opposite side of the application side of the resin solution of the translucent substrate film by radiation irradiation means 8 to harden the resin solution on the translucent substrate film; and a step 105 of removing a cured product 20 of the resin solution along with the translucent substrate film from the planar mold.

COPYRIGHT: (C)2008,JPO&INPIT


Inventors:
OKAMURA NAOYUKI
Application Number:
JP2006121824A
Publication Date:
November 08, 2007
Filing Date:
April 26, 2006
Export Citation:
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Assignee:
TOPPAN PRINTING CO LTD
International Classes:
B29D11/00; G02B3/00; G02B3/06; G02B3/08; G03B21/00; G03B21/10; G03B21/60; G03B21/602; G03B21/62; G03B21/625