Minitab Webinar - Maximise Efficiency Time-to-Market and Design for Reliability

The Webinar named “Maximise Efficiency Time-to-Market and Design for Reliability at the Speed of Light in Signify: Case Study” was organized by Minitab on 16^th Dec 2020.  In the beginning, Ms. Abbie Wong (Area Marketing Manager, Minitab) introduced two guest speaker and they were Prof. Willem Dirk van Driel (Fellow Scientist, Signify; Professor Delft University of Technology) and Mr. Piet Watte (Lead Development Engineer, Signify).

Firstly, the three major shift in the Lighting Industry was introduced and they were: 1) Industry Transformation, 2) A Changing World and 3) Digitalization.  They the Signify Company strategies were briefed.

Then they said reliability was the major concern of high-tech industries including Lighting (e.g. Long lifetime coverage, system reliability, multi-physic interaction and data analytics).  Design for Reliability (DfR) was mentioned that they had built on 4 pillars included Methodology, Testing, Reliability Tools, Capability assessment & training.

After that the failure of LED was stated and lumen depreciation model was demonstrated step by step using Minitab. 

A lumen depreciation model was developed by the Illuminating Engineering Society of North America (IESNA) that model used experimental assessments of lumen depreciation of solid-state light sources.  Typically, a 6000hr test (could be 10,000hr) showed lumen depreciation and chromaticity shift over the period at particular operating temperatures 55^oC, 85^oC and 105^oC were discussed.

The workflow of setting up a depreciation model was demonstrated step by step.

The core model for lumen depreciation was showed and then made the regression life model.

Finally, the contour plot of Life Model was created by Minitab.

Lastly, they said reliability (and quality) is an asset and Richard Feynman statement was quoted as conclusion that “There is nothing that living things do that cannot be understood from the point of view that they are made of atoms acting according to the laws of physics.”

Reference:

Minitab – www.minitab.com

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