Patent Number: 6,254,243

Title: Composite polymeric reflectors

Abstract: A method for making polymeric reflectors and parabolic reflectors in particular. The reflector is made by forming a series of layers (12, 14, 16, 18, and 20) that are progressively thinner with the final polymeric layer (20) being about one millimeter in thickness. The reflector is then coated with a reflective layer (22) by vapor deposition. To make a parabolic reflector, the layers are spun cast at a constant, preselected rate throughout the process, including during the curing of each layer. Layer formation is made in a controlled, particulate-free environment and additives can be used to increase stiffness, decrease weight, and reduce stresses during curing.

Inventors: Scrivens; Walter A. (Newberry, SC)

Assignee:

International Classification: G02B 5/10 (20060101); G02B 7/182 (20060101); G02B 005/08 ()

Expiration Date: 07/03/2018