Optical lens base with protective film and process for...

Details Optical lens base with protective film and process for... Optical lens base with protective film and process for...

2004-09-30

2010-02-09

Mack, Ricky L (Department: 2873)

Optical: systems and elements

Lens

Single component with multiple elements

C359S819000, C264S001320

Reexamination Certificate

active

07660051

ABSTRACT:
A protective film (10) is eccentrically adhered to a concave-side transfer surface (3b) of a first mold (3) which is used in a plastic lens forming mold, and part (10a) of the peripheral portion of the protective film is projected laterally from the mold (3). The protective film (10) comprises a film layer with an outer diameter smaller than that of the first mold (3), and an adhesive layer with a relatively low adhesive strength which is formed on one surface of the film layer.

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“Spectacles” May 22, 1986; Kabushiki Kaisya Medical Aoi Suppan; pp. 83-85.

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