Patent Number: 6,166,860

Title: Screen illumination apparatus and method

Abstract: In a device for directing light longitudinally forwardly, the combination comprising a light source, and a protective, transparent envelope extending about the light source; a drum lens having a body extending about the light source and envelope, for refracting light from the source; a light reflector extending about the drum lens body, for forwardly and convergently re-directing refracted light received from the drum lens body; and a correcting lens for receiving a collimating re-directed light screened from the reflector.

Inventors: Medvedev; Vladimir (El Segundo, CA), Parnyn; William A (Lomita, CA)

Assignee: Teledyne Lighting and Display Products, Inc.

International Classification: F21V 13/04 (20060101); F21V 13/00 (20060101); G02B 3/08 (20060101); F21V 5/00 (20060101); F21V 5/04 (20060101); G02B 027/30 (); G02B 027/10 (); G02B 017/00 (); G02B 003/08 (); G02B 013/02 ()

Expiration Date: 12/26/2017