The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 11, 1998
Filed:
Jul. 06, 1995
Applicant:
Inventor:
John Foley, Prestatyn, GB;
Assignee:
Pilkington P.E. Limited, Mercyside, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
385 31 ; 385901 ; 385115 ; 385121 ; 362 32 ;
Abstract
An illumination device 1 and methods for producing said device and parts thereof for backlighting a liquid crystal display 3 wherein the illumination device comprises a solid substrate 5 containing at least one groove 11 and an optical fiber 7 comprising an inner core 23 and an outer cladding layer 25 fitted into the groove(s) 11. The outer cladding layer 25 is of reduced thickness on the exposed side of the core 23 such that, light supplied along the optical fiber 7 from a light source 9, is transversely emitted from the optical fiber through the reduced thickness layer 14.