Patent Number: 6,166,389

Title: Apparatus having a light source and a sol-gel monolithic diffuser

Abstract: An apparatus for projecting light on to a predetermined area includes a light source and a transparent element disposed adjacent the light source where in the transparent element is made from a sol-gel type glass, quartz, or other optical material. A plurality of surface micro-structures integral in a surface of the transparent element are provided which both homogenize and control directionality of light passing form the light source through the transparent element. These micro-structures produce a predetermined pattern of highly transmissive, smoothly varying, non-discontinuous light in a predetermined direction which is suitable for any number of applications wherein a sol-gel material transparent element including the diffuser surface structures are particularly well suited.

Inventors: Shie; Rick L. (Westlake Village, CA), Laine; Jeffrey A. (Redondo Beach, CA), Savant; Gajendra D. (Torrance, CA)

Assignee: Physical Optics Corporation

International Classification: G02B 5/32 (20060101); G02B 5/02 (20060101); G03H 1/32 (20060101); G03H 1/00 (20060101); G02B 005/32 ()

Expiration Date: 12/26/2017