Injection moulded plastic optical systems for harsh environments

Abstract

The general problems involved in the production of precision optical components are discussed with reference to plastics. The methods available for the manufacture of plastic optical parts are reviewed with particular reference to injection moulding. The design and manufacture of injection moulds are considered, and ways in which dimensional and surface finish requirements may be achieved are given. The criteria for producing optimum quality mouldings are listed, and the role of modern microprocessor controlled machines in producing quality moulded parts is emphasized. Methods for improving surface abrasion resistance and minimizing reflections are described. The optical, mechanical, physical, and processing properties of the plastics most favoured for optical components are given.

MST/375