Seoul Semiconductor Co., Ltd.

Jun Ho Song

BoYong Han

Bo Yong Han

A lighting apparatus including a controller and an LED luminaire to implement a color temperature from a minimum of 3,000K or less to a maximum of 5,000K or more, the LED luminaire including at least one first light emitter, at least one second light emitter, and at least one third light emitter, in which a triangle region defined by color coordinates of the light emitters includes at least a region on a Planckian locus, and the maximum and minimum color temperatures in the triangle region are 5,000K or more, and 3,000K or less, respectively, and in the CIE-1931 coordinate system, the color coordinates of the first light emitter is closer to 5,000K than those of the second and third light emitters, and the color coordinates of the third light emitter is closer to 3,000K than those of the first and second light emitters.

Lighting apparatus and lighting system including the same

A lighting apparatus including a controller, an LED driver, and an LED luminaire including: a first light emitting unit for general lighting; and at least one of a second light emitting unit to cause production of vitamin D upon irradiation, a third light emitting unit to cause production of a cell activating substance upon irradiation, and a fourth light emitting unit to sterilize pathogenic microorganisms, in which the controller controls the LED driver to change a color temperature of the first light emitting unit in accordance with a change in a color temperature of sunlight, and to change an irradiance of light emitted from at least one of the second, third, and fourth light emitting units according to time, and the LED luminaire includes a greater number of the first light emitting unit than any of the second, third, and fourth light emitting units.

LED lighting apparatus and lighting system having the same

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.

A lighting apparatus including a controller including a real time clock, an LED driver, and an LED luminaire including a first light emitting unit including a first LED to emit light having a peak wavelength between 300 to 470 nm and a wavelength converter, and at least one of a second light emitting unit to emit light having a peak wavelength between 286 to 304 nm to cause production of vitamin D, a third light emitting unit to emit light having a peak wavelength between 605 to 935 nm to cause production of a cell activating substance, and a fourth light emitting unit to emit light having a peak wavelength between 400 to 430 nm to sterilize pathogenic microorganisms, in which the controller controls the LED driver to change an irradiance of light emitted from at least one of the light emitting units according to time.

Growing community of inventors

Ansan-si, South Korea

Jun Ho Song