Lighting design professor, researcher and expert Thomas Schielke has collected ten years' worth of LED designs and developments and put them all together in one video:
The video timeline covers a fascinating selection of the first LED luminaries for interior lighting. The first decade with white LED light reveals how designers have implemented new technology in existing housing, added LED as part of a product group or created a unique design specifically for LED. State-of-the art LED technology requires just about one third of energy for the same lumen output if compared to low-voltage tungsten lamps, thereby enabling task lights for offices with less than 10W. The timeline includes international designers and architects like Norman Foster or Yves Behar as well as new products from the recent Euroluce.
Schielke, co-author of the book Light Perspectives - Between Culture and Technology, has made a PDF detailing the project available for free download here.