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13 July 1988 New Directions In Aspherics; Glass And Plastic
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Proceedings Volume 0896, Replication and Molding of Optical Components; (1988) https://doi.org/10.1117/12.944476
Event: 1988 Los Angeles Symposium: O-E/LASE '88, 1988, Los Angeles, CA, United States
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.
© (1988) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
L. Smith, R. J. Tillen, and J. Winthrop "New Directions In Aspherics; Glass And Plastic", Proc. SPIE 0896, Replication and Molding of Optical Components, (13 July 1988); https://doi.org/10.1117/12.944476
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