Back to results
US 11,083,060 B2Granted
Lighting apparatus and lighting system including the same
AssigneeSeoul Semiconductor Co., Ltd.
InventorsJun Ho Song, BoYong Han
Life of this patent
Estimating the term…
Abstract
A lighting apparatus including a controller, an LED driver, and an LED luminaire, in which the LED luminaire implements a color temperature from a minimum color temperature of 3,000K or less to a maximum color temperature of 5,000K or more, and the controller controls the LED driver to change the color temperature of the LED luminaire corresponding to change in color temperature of sunlight.
Claims18
A lighting apparatus comprising:
- a controller;
- an LED driver;
- and
- an LED luminaire configured to implement a color temperature from a minimum color temperature of 3,000K or less to a maximum color temperature of 5,000K or more, the LED luminaire comprising a light emitting apparatus including at least one first light emitting unit, at least one second light emitting unit, and at least one third light emitting unit,
- wherein the controller is configured to control the LED driver to change the color temperature of the LED luminaire corresponding to change in color temperature of sunlight,
- wherein a triangle region defined by color coordinates of the first light emitting unit, the second light emitting unit, and the third light emitting unit comprises at least some section on a Planckian locus, and the maximum color temperature and the minimum color temperature on the Planckian locus included in the triangle region are 5,000K or more, and 3,000K or less, respectively,
- wherein the at least one first light emitting unit comprises a first light emitting diode chip having a peak wavelength of 400 nm to 420 nm and a first wavelength converter, the at least one second light emitting unit comprises a second light emitting diode chip having a peak wavelength of 400 nm to 420 nm and a second wavelength converter, and the at least one third light emitting unit comprises a UV, violet, or blue light emitting diode chip and a third wavelength converter, and
- wherein in the CIE-1931 coordinate system, the color coordinates of the at least one second light emitting unit is placed above the Planckian locus, the color coordinates of the at least one first light emitting unit is closer to a color temperature of 5,000K than those of the at least one second light emitting unit and the at least one third light emitting unit, and the color coordinates of the at least one third light emitting unit is closer to a color temperature of 3,000K than those of the at least one first light emitting unit and the at least one second light emitting unit.
5 more elements
A lighting system comprising:
- a lighting apparatus comprising a controller, an LED driver, and an LED luminaire;
- and
- an electronic control unit configured to provide a signal to the lighting apparatus,
- wherein the LED luminaire comprises a light emitting apparatus including at least one first light emitting unit, at least one second light emitting unit, and at least one third light emitting unit, and is configured to implement a color temperature from a minimum color temperature of 3,000K or less to a maximum color temperature of 5,000K or more,
- wherein the controller is configured to control the LED driver to change the color temperature of the LED luminaire to correspond to change in color temperature of sunlight,
- wherein a triangle region defined by color coordinates of the first light emitting unit, the second light emitting unit, and the third light emitting unit comprises at least some section on a Planckian locus, and the maximum color temperature and the minimum color temperature on the Planckian locus included in the triangle region are 5,000K or more, and 3,000K or less, respectively,
- wherein the at least one first light emitting unit comprises a first light emitting diode chip having a peak wavelength of 400 nm to 420 nm and a first wavelength converter, the at least one second light emitting unit comprises a second light emitting diode chip having a peak wavelength of 400 nm to 420 nm and a second wavelength converter, and the at least one third light emitting unit comprises a UV, violet, or blue light emitting diode chip and a third wavelength converter, and
- wherein in the CIE-1931 coordinate system, the color coordinates of the at least one second light emitting unit is placed above the Planckian locus, the color coordinates of the at least one first light emitting unit is closer to a color temperature of 5,000K than those of the at least one second light emitting unit and the at least one third light emitting unit, and the color coordinates of the at least one third light emitting unit is closer to a color temperature of 3,000K than those of the at least one first light emitting unit and the at least one second light emitting unit.
5 more elements
Dependencies are inferred from the claim text.