Who is the Progress Report Committee?
The Progress Report Committee (PRC) is made of members of the Illuminating Engineering Society (IES) and consists of a Chair, Sub-Chair, and three Liaisons. These leaders in the lighting industry form an impartial judging panel that upholds one of the key directives of the IES, which is to “keep in touch with developments in the art and science of lighting throughout the world.” To adhere to this mandate, the PRC prepares an annual report of new advancements in the lighting industry which include significant new products, research, publications, and design tools. Submissions accepted into 2019’s Progress Report are presented at the annual conference in a live demo quite reminiscent of a stand-up comedy routine. This year’s presentation was Friday, August 9 in Louisville, KY and included Auragami by Evo-Lite.
The acceptance of a submission relies entirely upon being unique and significant. Evo-Lite presented Auragami’s top three areas of significance to the Progress Report Committee and was accepted into this year’s report.
Significance #1: Auragami™ Light Sheets allow the most precise on-site customization capabilities while retaining UL Listing and IP65 rating.
1a) The light sheet’s design allows removing even a single LED, which is an area of 0.44 square inches (0.66 in x 0.66 in). Other light sheets that allow removal of a single LED have less precision: 1 square inch or more.
1b) Auragami can be cut along four axes (short, long and both diagonals). Others that are cuttable allow modification only along short and long axes. Those few that can be cut along four axes have less precision: cut lines spaced 1″ or farther apart versus 0.66” for Auragami.
Significance #2: Auragami Light Sheets emit the highest lumens per square foot while providing uniform surface brightness (luminance) at the closest distance between the material and the light engine.
2a) Auragami produces 860 lumens per square foot yet has an individual LED brightness of only 2.6 lumens. This offers enough backlighting flux for dense translucent materials while spreading the light out more evenly than high individual brightness LEDs. Other light sheets either have a low light output (less than 800 lumens per square foot) or emit over 800 lumens per square foot but have high individual LED light output (more than 6 lumens per LED) which requires more spacing to the translucent material to avoid “hot spots”.
2b) Auragami combines the closest LED pitch with uniform spacing for both axes of its matrix. The LED-to-LED spacing is 0.66” compared to others that show a spacing of 1” or more between LEDs; and the pitch uniformity between the x-axis and the y-axis for Auragami is 1:1. Other light sheets that have variances between axes (i.e. 1” LED spacing in one direction versus 1.5” spacing in the other) require that the material be farther away from the light engine to produce even luminance on the material’s surface.
Significance #3: Auragami is the only light sheet that claims 100% to Off light control at close proximity.
Due to pre-production quality assurance procedures, all LEDs react equally to low current input. This eliminates stray LEDs that could remain brighter than others when dimmed to very low levels. This is important since Auragami Light Sheets can be used in close proximity to translucent materials and a stray lighted LED would show.
