Patent · US Active

Method of arranging a multiplicity of LEDs in packaging units, and packaging unit including a multiplicity of LEDs

US9472534B2 · kind B2 · utility

0Cited by

1References

9Claims

0Family size

Assignee

OSRAM Opto Semiconductors GmbH · DE

Inventors

Alexander Wilm · Regensburg, DE
Roland Schulz · Portland, US
Felix Michel · Backnang, DE

Key dates

Filing date	Apr 15, 2016
Grant date	Oct 18, 2016
Priority date	—
Expiry date	Apr 15, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH10H20/036
WIPO fieldSemiconductors
WIPO sectorElectrical engineering

Abstract

A method of arranging a multiplicity of LEDs in packaging units includes defining a desired range for at least one photometric measurement variable for each of the packaging units; selecting an LED from the multiplicity of LEDs not yet arranged in one of the packaging units; measuring the at least one photometric measurement variable for the selected LED; equipping one of the packaging units containing fewer than N−1 LEDs with the selected LED; storing a measured value and a position of the selected LED in the packaging unit in a memory; repeating until the packaging units are equipped with N−1 LEDs; repeating and calculating the average value of the photometric measurement variable, equipping a packaging unit for which the calculated average value of the variable lies in a defined range with the selected LED; and storing the measured value and the position of the selected LED.

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