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Proceedings Paper

Novel Acrylic Resin For Injection Molded Precision Lenses
Author(s): Hiromasa Kawai; Fumiaki Kanega; Hisashi Kohkame
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Paper Abstract

A novel acrylic resin has been developed for injection molded precision lenses. This resin is a copolymer of tricyclodecyl methacrylate (TCDMA) with other acrylic monomers. The novel resin, TCDMA-Acrylic copolymer has rigid, bulky cyclic hydrocarbons in the side chain so that it possesses characteristics superior to conventional acrylic resin (PMMA) in terms of low moisture absorption properties and high temperature resistance. However, like PMMA, it also provides high transparency, low birefringence, and low dispersion of refraction. Because of these characteristics, TCDMA-Acrylic copolymer is being used for precision aspheric lenses that cannot be realized by conventional optical plastics.

Paper Details

Date Published: 13 July 1988
PDF: 10 pages
Proc. SPIE 0896, Replication and Molding of Optical Components, (13 July 1988); doi: 10.1117/12.944465
Show Author Affiliations
Hiromasa Kawai, Hitachi Chemikal Co. (Japan)
Fumiaki Kanega, Hitachi Chemikal Co. (Japan)
Hisashi Kohkame, Hitachi Chemikal Co. (Japan)

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

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