Category:Light emitting diodes A white light-emitting diode - Photo by Wikimedia User:Gophi. A light source that comes from semiconductors that release energy in the form of photons Pages in category "Light emitting diodes" The following 5 pages are in this category, out of 5 total. F Stephen R. ForrestRichard FriendK Frederick A. Kish, Jr.L The Season of (Electric) LightT Ching Wan Tang Category: Lasers, lighting & electrooptics