Optical system design for a reflector-based LED food lighting module

Abstract

We report on the development and experimental analysis of an LED lighting module for use in a high-end food lighting environment which puts high demands on color homogeneity and color rendering. The system is built from highly reflecting and partly scattering PVD coated metal reflector sheet that has limited deformability and uses RGBW LEDs. We develop an optical design that is adapted to allow for color mixing and to take into account manufacturing constraints and include this into a prototypical module. Results of measurements and field tests are in good agreement with simulations.

Structure equation as novel strategy for optimum reflector design

“…The comparison between the secondary optics and the reflectors is exactly analogous to refractive and reflective optics, and the advantage of using the appropriate reflector is that it is free from wavelength dispersion. The reflector can modify the original intensity pattern of the LED die more easily in the first stage than the techniques of secondary optical lens [1], therefore the reflector plays an important role in energy distribution [2][3][4]. However, few studies have examined the design cri-teria and limitations of the LED reflector, and how various geometric factors affect their behaviors [5][6][7][8].…”

In Gottes Namen fahren wir!

“…Weiter wird verlangt: Von allen Mitgliedern der Privatversammlungen in Stein bach ist eine genaue namentliche Liste zu ver fertigen und dem Dekanatamt abzuliefern. 3 Was für eine Demütigung muß das für den Schulmeister gewesen sein, jetzt noch auf merksamer als sonst vom Schultheißen beob achtet und beurteilt zu werden! Kein Wunder, daß er 1818 nach Kaltental zog.…”