IP Library Granted Patent US 7,778,507
Granted Patent B2
US 7,778,507 · App. 11/957,684 · Granted Aug 17, 2010

Light guide and method of producing a light guide

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Quick Facts
Patent No.
US 7,778,507
App. No.
11/957,684
Granted
Aug 17, 2010
Kind
B2
Abstract

A light guide comprising a base body and a plurality of outcoupling elements that are disposed on an outcoupling side of the base body and are provided to couple radiation out of the base body, said outcoupling elements being applied on a film. A method of producing the light guide.

Claims (8)

1. A method of producing a light guide comprising a pre-formed base body and a plurality of outcoupling elements, the method comprising:

applying a plurality of outcoupling elements directly to a surface of a film;

arranging said film provided with said outcoupling elements on a pre-formed base body of the light guide;

wherein said film is applied to said pre-formed base body without the use of an adhesive such that a surface of said film that is free of outcoupling elements adheres to said pre-formed base body.

2. The method as in claim 1 , wherein

the method for applying said outcoupling elements is an ink jet printing process.

3. The method as in claim 1 , wherein

said film is warmed and is pressed onto said base body.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 18, 2023
From: OSRAM GMBH
To: OPTOTRONIC GMBH
Reel/Frame 064308/0802 →
MERGER Recorded Mar 25, 2010
From: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN MBH
To: OSRAM GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
Reel/Frame 024134/0421 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 23, 2008
From: BURKARD, KLAUS
To: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN MBH
Reel/Frame 020401/0550 →