Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Uploaded on Sep 28, 2010
In a unique laboratory at the National Institute of Standards and Technology (NIST), vision scientists can simulate lighting from virtually any source, including incandescents, fluorescents or LEDs. With this capability, they can test how a light source behaves and how humans perceive objects and colors that it illuminates.