Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Light polarizing article or holographic article
Patent
1997-08-11
1998-06-02
Mackey, James P.
Plastic and nonmetallic article shaping or treating: processes
Optical article shaping or treating
Light polarizing article or holographic article
264 16, 264 27, 425327, 425363, 425812, B29D 1100
Patent
active
057594554
ABSTRACT:
A roller-shaped stamper has a scale portion with a light transmitting forming portion for forming the light transmitting portion on the resin, and a light shield forming portion for forming the light shielding portion of the resin, wherein the forming portions are alternately arranged with a constant pitch in a direction of rotation of said roller-shaped stamper; a plurality of scale portions are arranged in a direction normal to the direction of rotation of the roller-shaped stamper; and a groove disposed between the plural scale portions and extending in the direction of rotation of the roller-shaped stamper for exhausting air otherwise trapped between the resin and the roller-shaped stamper.
REFERENCES:
patent: 4496300 (1985-01-01), Stransfeld
patent: 5267228 (1993-11-01), Yashima et al.
patent: 5320787 (1994-06-01), Hayashi et al.
patent: 5383834 (1995-01-01), Kanome et al.
patent: 5433897 (1995-07-01), Kanome et al.
Kamitakahara Hirofumi
Kanome Osamu
Canon Kabushiki Kaisha
Mackey James P.
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