Adhesive bonding and miscellaneous chemical manufacture – Delaminating processes adapted for specified product – Delaminating in preparation for post processing recycling step
Patent
1982-11-12
1984-08-21
Schilling, Richard L.
Adhesive bonding and miscellaneous chemical manufacture
Delaminating processes adapted for specified product
Delaminating in preparation for post processing recycling step
156645, 156650, 1566591, 1566611, 20412935, 20412965, 430321, B44C 122, C03C 1500, C23C 100, G03F 700
Patent
active
044668589
ABSTRACT:
The invention contemplates integral lens-and-haptic structure and a technique of making the same, using sheet material as the only ingredient of the ultimate product, which may be an intraocular implant or for extraocular (i.e., cornea-contact) application. The sheet material is of substantially the ultimate thickness of the lens, and may be of optical-quality glass or of a transparent plastic which is inert to body fluids. Suitably coordinated masking and etching steps determine the contour of the ultimate central circular lens as well as the thickness and fenestration detail of the ultimate thin flexible haptic formations which are integral with and extend radially outward of the lens blank. Lens-surface curvature may be developed before or after haptic formation.
REFERENCES:
patent: 4080709 (1978-03-01), Poler
patent: 4149279 (1979-04-01), Poler
patent: 4206518 (1980-06-01), Jardon et al.
patent: 4402579 (1983-09-01), Poler
Lynell Medical Technology Inc.
Schilling Richard L.
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