12 - 16 April 2026
Strasbourg, France
Conference 14109 > Paper 14109-8
Paper 14109-8

Micro-element design for uniform and decorative lighting

13 April 2026 • 12:00 - 12:20 CEST | Luxembourg/Salon 2 (Niveau/Level 0)

Abstract

Displays, backlit symbols, or ambient lighting applications often require getting large surfaces backlighted in a homogeneous way. This article will present a LucidShape CAA V5 Based integrated feature to design and simulate micro-elements, or 3D Texture, as a mesh. This way, hundreds of thousands of elements, either bumps or holes, can be integrated into light plates. Monte-Carlo simulation of such a mesh surface is much faster than a pattern geometry modeling. An optimization of the size of each element will be presented on a curved display example, to obtain a homogenous display illumination. Finally, the article will show a macro for loading elements following a grayscale image: elements’ size will follow the grayscale level of each pixel, thus permit simulating a backlit logo.

Presenter

Julien Goechnahts
Keysight Technologies Deutschland GmbH (Germany)
Julien Goechnahts is an application engineer in Munich for the Optical Design Engineering group at Keysight Technologies. Mr. Goechnahts is an expert in the field of light simulation and its applications in a range of industries, including automotive, aerospace, and general lighting. He is a graduate of Télécom Physique Strasbourg where he majored in Photonics.
Presenter/Author
Julien Goechnahts
Keysight Technologies Deutschland GmbH (Germany)
Author
Thomas Tessnow
Keysight Technologies, Inc. (United States)
Author
Thorsten Schupp
Keysight Technologies Deutschland GmbH (Germany)