Surface Enhancement For Optical Plastics

Jon D. Masso

doi:10.1117/12.944474

13 July 1988 Surface Enhancement For Optical Plastics

Jon D. Masso

Proceedings Volume 0896, Replication and Molding of Optical Components; (1988) https://doi.org/10.1117/12.944474
Event: 1988 Los Angeles Symposium: O-E/LASE '88, 1988, Los Angeles, CA, United States

Abstract

Optical plastics can be molded or cast to replicate traditional spherical and aspheric lenses. It is possible to obtain good optical quality, but often it is necessary or desirable to enhance the surface characteristics in a variety of ways. These include improving the abrasion resistance, chemical resistance, the addition of anti-fog, or anti-static characteristics, applying electrically conductive coatings, and applying coatings or selective absorbers for light and color control. Coatings may be entirely organic or organo-silanes applied by dipping or spinning. All dielectric coatings such as quartz abrasion resistant coatings or multilayer dielectric coatings for reflection reduction or enhancement may be applied by vacuum vapor deposition. This paper discusses a number of these coatings and surface treatments. The paper describes their characteristics and includes discussions of their durability and environmental stability. The adhesion of coatings to plastic substrate depends on the specific substrate and coating materials. Pretreatments or primers are used to promote good coating adhesion. A coating used for one purpose will generally affect other properties of the plastic and trade-offs are sometimes required. A description is given of several test methods which have been found useful in evaluating the quality of the various coatings.

Citation Download Citation

Jon D. Masso "Surface Enhancement For Optical Plastics", Proc. SPIE 0896, Replication and Molding of Optical Components, (13 July 1988); https://doi.org/10.1117/12.944474

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