Glbtech Co., Ltd.

Guen Ryeol Park

Han Do Kim

Byung Soon Kim

Yong Sun Choi

Eun Mi Park

Young Sik Choi

The present invention relates to a white light source and illumination apparatus for limiting wavelength of 450 nm or less and, more particularly, to a white light source and illumination apparatus for lighting in a lithography or other process, capable of realizing white light even with the limited wavelength of 450 nm or less light. Disclosed is a white light illumination apparatus for limiting wavelength of 450 nm or less, the apparatus comprising a white light source comprising: a blue light-emitting diode element having an emission peak wavelength of 450-490 nm; and an encapsulation layer which encapsulates the blue light-emitting diode element, wherein in the encapsulation layer, one or more phosphors which realize white light emission along with the blue light-emitting diode element, and a blocking agent which blocks light of wavelength of 450 nm or less are scattered, thus forming a first peak region at a wavelength of 450-490 nm and a second peak region which realizes white light emission in combination with the first peak region and limiting the wavelength of 450 nm or less.

White light source and illumination apparatus for lighting in lithography process

The present invention relates to an LED illuminant module and lighting apparatus and, more specifically, to a high color rendering D50/D65 standard LED illuminant module and lighting apparatus, which has both high color rendering properties and excellent metamerism index characteristics by using a high color rendering LED and an ultraviolet LED. An illuminant module according to an embodiment of the present invention comprises: at least one ultraviolet light-emitting diode (LED) device having a peak emission wavelength of 300 nm-400 nm; and at least one first white light-emitting diode (LED) device having an average color rendering index of 90% or higher, wherein the first white light-emitting diode (LED) device is a light-emitting diode (LED) device which comprises a first LED chip having an excitation wavelength of 440 nm-460 nm, and a first phosphor layer excited at the excitation wavelength of the first LED chip to emit light, and the first phosphor layer comprises: a first phosphor having a peak emission wavelength of 440 nm-499 nm; a second phosphor having a peak emission wavelength of 500 nm-580 nm; and a third phosphor having a peak emission wavelength of 600 nm-699 nm.

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Gyeonggi-do, South Korea

Guen Ryeol Park