Stamper for use in forming planar micro-lens array and method fo

Details Stamper for use in forming planar micro-lens array and method fo Stamper for use in forming planar micro-lens array and method fo

1998-10-21

2000-10-10

Vargot, Mathieu D.

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Composite or multiple layer

216 24, 264 138, 264 25, 4251744, 425175, B29D 1100

Patent

active

061298662

ABSTRACT:
For providing a stamper for forming a planar micro-lens array, a stamper is prepared by forming plural concave portions 2 for forming lens portion upon a stamping surface thereof, and a trap portion 3 is provided surrounding said plural concave portions and continuing until an outer edge thereof. Then, onto the stamping surface, on which a release agent 4 is applied, there is applied a high refractive index resin 5, and a glass substrate 6 is pressed onto the high refractive index resin 5 to exude it. With this operation, the high refractive index resin 5 is filled into each of the plural concave portions 2, and any excess is received or accommodated in the trap portion 3, thereby preventing excess resin from being forced outside.

REFERENCES:
patent: 5225935 (1993-07-01), Watanabe et al.
patent: 5298366 (1994-03-01), Iwasaki et al.
patent: 5300263 (1994-04-01), Hoopman et al.
patent: 5439621 (1995-08-01), Hoopman
patent: 5630902 (1997-05-01), Galarneau et al.

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