Roller-shaped stamper for fabricating optical scales

Details Roller-shaped stamper for fabricating optical scales Roller-shaped stamper for fabricating optical scales

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.

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