Share Email Print
cover

Proceedings Paper

New Directions In Aspherics; Glass And Plastic
Author(s): L. Smith; R. J. Tillen; J. Winthrop
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Ophthalmic lens design and manufacture is changing because of the use of aspherics to correct presbyopia and because of the use of thermoplastic and thermosetting materials. These combinations are examined and compared to the aspheric component prospects in the mainstream of optics. Thermal replication of aspheric surfaces is described in relationship to injection molding and casting. Limitations on performance and constraints of cost of manufacture are examined and compared for all of these methods. Product applications considered range in scale from fiber optic connector lenses effective over millimeter apertures to elements for flight simulators approaching 1 meter in diameter.

Paper Details

Date Published: 13 July 1988
PDF: 7 pages
Proc. SPIE 0896, Replication and Molding of Optical Components, (13 July 1988); doi: 10.1117/12.944476
Show Author Affiliations
L. Smith, American Optical Corporation (United States)
R. J. Tillen, American Optical Corporation (United States)
J. Winthrop, American Optical Corporation (United States)


Published in SPIE Proceedings Vol. 0896:
Replication and Molding of Optical Components
Max J. Riedl, Editor(s)

© SPIE. Terms of Use
Back to Top