Patent · US Expired

Method for the production of light-guiding LED bodies in two chronologically separate stages

US7267791B2 · kind B2 · utility

9Cited by

1References

8Claims

0Family size

Assignee

G.L.I. Global Light Industries GmbH · DE

Inventors

Thorsten Ricking · Moers, DE
Cem Olkay · Witten, DE
Christine Weber · Garbsen, DE

Key dates

Filing date	Dec 23, 2002
Grant date	Sep 11, 2007
Priority date	—
Expiry date	Apr 10, 2024

Classification

Technology area (CPC H)Electricity
CPC primaryH10H20/855
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

Disclosed is a method for producing light-guiding LED bodies in a mold, using a material that is flowable before becoming definitively solid. Each LED body comprises at least one light-emitting chip and at least two electrical connections that are connected to the chip. At least one flowable material is fed into the mold in chronologically separate steps via at least one of at least two locations. In a first step, the flowable material is fed into the mold so as to flow around the chip and the connections in that area. In further steps, one or several flowable materials are fed into areas other than the one in which the chip and connections are located. The inventive method for producing light-guiding LED bodies allows virtually all produced luminescent diodes to have the same optical characteristics and prevents the individual LED electronics from being spoiled through damage.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.