Back to results
US 2016/0111596 A1Published application
Lighting system
AssigneeSamsung Electronics Co., Ltd.
InventorsChul Min KIM, Tan SAKONG, Suk Ho YOON, Keon Hun LEE, Do Young RHEE, Sang Don LEE
Life of this patent
Estimating the term…
Abstract
A lighting system includes a lighting unit comprising at least one lighting device, a sensing unit configured to measure at least one of atmospheric temperature and humidity, a controlling unit configured to compare the at least one of the temperature and the humidity measured by the sensor unit with set values and determine a color temperature of the lighting unit as a result of the comparison, and a driving unit configured to drive to the lighting unit to have the determined color temperature.
Claims16
A lighting system comprising:
- a lighting unit comprising at least one lighting device;
- a sensing unit configured to measure at least one of atmospheric temperature and humidity;
- a controlling unit configured to compare the at least one of the temperature and the humidity measured by the sensor unit with set values and determine a color temperature of the lighting unit as a result of the comparison;
- and
- a driving unit configured to drive to the lighting unit to have the determined color temperature.
2 more elements
A lighting system comprising:
- a lighting unit comprising at least one lighting device;
- a sensing unit configured to measure at least one of atmospheric temperature and humidity;
- a controlling unit configured to compare the at least one of the temperature and the humidity measured by the sensor unit with set values and determine a color temperature of the lighting unit as a result of the comparison;
- and
- a driving unit configured to drive to the lighting unit to have the determined color temperature,
- wherein the lighting device comprises at least semiconductor light emitting device comprising:
- an n-type semiconductor layer and a p-type semiconductor layer;
- an active layer disposed between the n-type semiconductor layer and the p-type semiconductor layer;
- an electron-blocking layer disposed between the active layer and the p-type semiconductor layer;
- a diffusion barrier layer disposed between the active layer and the electron-blocking layer;
- and
- a hole-diffusion layer disposed between the electron-blocking layer and the p-type semiconductor layer,
- wherein the hole-diffusion layer includes three layers having different compositions and different dopant-doping concentrations and at least one of the three layers contains Al, a composition of the Al being lower in the at least one layer than in the electron-blocking layer.
10 more elements
A lighting system comprising:
- a lighting unit comprising at least one lighting device;
- a sensing unit configured to measure at least one of atmospheric temperature and humidity;
- a controlling unit configured to compare the at least one of the temperature and the humidity measured by the sensor unit with set values and determine a color temperature of the lighting unit as a result of the comparison;
- and
- a driving unit configured to drive to the lighting unit to have the determined color temperature,
- wherein the lighting device comprises at least semiconductor light emitting device comprising:
- a first conductivity type semiconductor layer;
- an active layer disposed on the first conductivity type semiconductor layer;
- an electron-blocking layer disposed on the active layer;
- a second conductivity type semiconductor layer disposed on the electron-blocking layer;
- and
- a hole-diffusion layer disposed between the electron-blocking layer and the second conductivity type semiconductor layer,
- wherein the hole-diffusion layer includes three layers having different energy band gaps and at least one of the three layers contains Al, a composition of the Al in any layer of the hole-diffusion layer being lower than in the electron-blocking layer.
10 more elements
Dependencies are inferred from the claim text.