Photographing subjects against a white background, where that background is lit to, in effect, be overexposed and thus providing what is known as a high key image is a standard technique. see the following link for more info.. in fact looking at the pictorial description it looks remarkably similar..

http://photography.tutsplus.com/tutorials/the-complete-beginners-guide-to-shooting-high-key–photo-2949

via us8676045 – Photography lighting (Amazon) – Issued Patent – PRIOR ART REQUEST – Ask Patents.