Lg Innotek Co., Ltd.

Mi Na Shin

Young Joo Ahn

Eon Ho Son

Do Yub Kim

Kwang Jae Lee

A lighting apparatus according to an embodiment comprises: a circuit board; and a plurality of light emitting modules having first to third light source units for emitting different colors on the circuit board; a control unit for providing a current control signal for controlling a current of each of the first to third light source units; a driver for controlling currents of the first to third light source units with a current control signal of the control unit, and a memory unit for storing luminous flux deviation data of the first to third light source units of each of the plurality of light emitting modules, wherein the first light source unit includes a plurality of first light emitting devices for emitting red light, and the second light source unit includes a plurality of second light emitting devices for emitting green light, and the third light source unit includes a plurality of third light emitting devices for emitting blue light, and the control unit controls currents of the first, second, and third light source units of the plurality of light emitting modules, respectively, according to an intensity value of an input current corresponding to the luminous flux deviation data.

Light emitting module and lighting device having same

A lighting apparatus disclosed in an embodiment comprises: a circuit board; a light-emitting module arranged on the circuit board and comprising a light source part having first to third light source parts emitting red, green and blue light; a control unit for providing current control signals to the first to third light source parts; a driver for controlling the current in the first to third light source parts by means of the control unit; and a memory unit having compensation data storing input current strength values for the first to third light source parts so that same emit white light having a previously configured correlated color temperature (CCT). The first, second and third light source parts comprise a plurality of first, second and third light-emitting elements for emitting red, green and blue light. The control unit controls the current in the first to third light source parts by means of the input current strength value corresponding to the compensation data so as to control the white light discharged from the light-emitting module is emitted as white light meeting the CCT criterion.

Light-emitting module and lighting apparatus provided with same

Disclosed is a light emitting module including a circuit board and a light source unit disposed on the circuit board. The light source unit includes a plurality of first, second and third light emitting devices emitting light of different colors, the plurality of first light emitting devices are disposed in an outer circumference of the second and third light emitting devices, the plurality of second light emitting devices are disposed in both sides of the plurality of the third light emitting devices, the plurality of first light emitting devices emits light having a wavelength longer than that of light emitted from the second and third light emitting devices. The plurality of second light emitting devices emits light having a wavelength longer than that of light emitted from the third light emitting devices, and the numbers of the first to third light emitting devices are different from one another.

Light emitting module and light unit having the same

A lighting device may be provided that includes: a light source which includes a blue light emitting device emitting blue light, and a red light emitting device emitting red light in a visible light spectrum; an optical exciter which is disposed on the light source, is spaced apart from the blue light emitting device and the red light emitting device, and includes at least one phosphor; and a power supply unit which is electrically connected to the light source and controls on/off of the blue light emitting device and the red light emitting device. When the blue light emitting device is an on-state and the red light emitting device is an off-state by the power supply unit, light emitted from the optical exciter is disposed within a specific area on a CIE 1931 chromaticity diagram. The specific area is formed by connecting three color coordinates, and the three color coordinates are (0.32, 0.4), (0.36, 0.5) and (0.368, 0.49). When the blue light emitting device and the red light emitting device are an on-state, the light emitted from the optical exciter is disposed within a predetermined target color coordinate range on the CIE 1931 chromaticity diagram.

Growing community of inventors

Seoul, South Korea

Mi Na Shin