One of the reasons I used the Lightcycle as a bedside lamp is because I like to be able to switch colour temperature
and brightness as the day passes by -- Cool white in the day time and warm in the evenings.
Lights with correlated colour temperature
control (tunable white) are equipped with LED chips of varying correlated colour temperature
controlled by special power supplies.
Prof Jou and his team realized that there is a need for a physiologically-friendly light at night which must possess a low colour temperature
. In response to this, Jou and his team developed a "candle light-style organic light emitting diode (OLED) which showed a colour temperature
as low as 1,900 K, a colour rendering index (CRI) as high as 93 and an efficacy of at least two times that of incandescent bulbs."
The advanced thermal images, displayed on the 4.5cm colour display, combine colour temperature
gradients and component outlines to quickly troubleshoot problems, be it poor electrical connections, phase unbalance or faulty motors and bearings and include an infrared spot thermometer.
"Standard production nowadays prefers daylight colour temperature
," Fleuter said.
The new system ranges from controllers, dimmers, smart drivers, and various LED light bulbs and lighting fixtures with built-in smart power drivers that can change the colour temperature
of light and dim the light output.
Schlangen, "The effect of high correlated colour temperature
office lighting on employee wellbeing and work performance," Journal of Circadian Rhythms, vol.
M2 EQUITYBITES-June 11, 2013-Rambus introduces colour temperature
change capability to LED bulbs(C)2013 M2 COMMUNICATIONS http://www.m2.com
There are three primary colours existing in varying proportions in a light source, depending on its colour temperature
. These are red, green and blue, usually abbreviated as RGB.
Measuring 115mm square, the TEC LED has an array of r6 LEDs with a colour temperature
The XCM-250-OLED also features colour temperature
compensation to match ambient conditions, dual waveform and vector display, and closed caption display.