LED Lighting
 Photo: E. Skalwold The warmer 3500K vs cooler 5000K LED Strips (museum setting) |
 Photo: E. Skalwold Examining the spectrum with OPL handheld diffraction spectroscope. (museum setting) |
 Photo: E. Skalwold Noon February 25, 2011 View out window providing the available illumination seen in the top image below. |
 Photo: E. Skalwold Lighting Comparison Specimens: kunzite spodumene crystal shards. Faceted color-change glass (trade-name Zandrite). Top: daylight, such as it was today. Middle: 3000K LED strip Bottom: OSRAM Fluorescent ?K (transmitted) |
 Photo: E. Skalwold The light is from 3000K LED strip and it is exciting the fluorescent tube of the OSRAM light which is actually turned off, though not enough to cause the glass color-change to blue. |
 Photo: E. Skalwold 5 Hours Later, still snowing... |
Go to: Color-Change |