公开(公告)号：US20240079533A1

公开(公告)日：2024-03-07

申请号：US18236105

申请日：2023-08-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seongmin KIM ,  Jeongeun YUN ,  Jeongrok OH ,  Sungwoo CHOI ,  Chulsoo YOON

IPC: H01L33/50 ,  F21V8/00 ,  H01L25/075

CPC classification number: H01L33/504 ,  G02B6/0073 ,  H01L25/0753 ,  H01L33/505

Abstract: A light emitting device includes a first light emitter including a first light emitting chip emitting first blue light and at least one among a first phosphor and a second phosphor, the first light emitter being configured to emit second blue light, and a second light emitter including a second light emitting chip emitting third blue light and at least one among a third phosphor and a fourth phosphor, the second light emitter being configured to emit fourth blue light, wherein a ratio of an intensity of a peak wavelength of the fourth blue light to an intensity of a peak wavelength of the second blue light is greater than or equal to 0.6.

公开(公告)号：US20220209075A1

公开(公告)日：2022-06-30

申请号：US17185431

申请日：2021-02-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seongmin KIM ,  Chohui KIM ,  Jeongeun YUN ,  Seulgee LEE ,  Sungwoo CHOI ,  Jeongrok OH ,  Chulsoo YOON

IPC: H01L33/50

Abstract: A white light emitting device is provided. The white light emitting device includes a blue light emitting diode configured to emit blue light having a peak wavelength in a first range of 440 nm to 455 nm; a first wavelength conversion material, based on being excited by the blue light, emits first light having a peak wavelength in a second range of 535 nm to 550 nm and a full width at half maximum (FWHM) of 60 nm or less; and a second wavelength conversion material, based on being excited by the blue light, emits second light having a peak wavelength in a third range of 620 nm to 660 nm, wherein a melanopic photopic ratio of white light emitted from the white light emitting device is 0.65 or less, and a color rendering index (CRI) of the white light is 80 or more.

公开(公告)号：US20250006872A1

公开(公告)日：2025-01-02

申请号：US18885155

申请日：2024-09-13

Applicant: SAMSUNG ELECTRONICS Co., LTD.

Inventor： Seongmin KIM ,  Jeongeun YUN ,  Jeongrok OH ,  Sungwoo CHOI ,  Chulsoo YOON

IPC: H01L33/50 ,  F21V8/00 ,  H01L25/075

Abstract: A light emitting device includes a first light emitter including a first light emitting chip emitting first blue light and at least one among a first phosphor and a second phosphor, the first light emitter being configured to emit second blue light, and a second light emitter including a second light emitting chip emitting third blue light and at least one among a third phosphor and a fourth phosphor, the second light emitter being configured to emit fourth blue light, wherein a ratio of an intensity of a peak wavelength of the fourth blue light to an intensity of a peak wavelength of the second blue light is greater than or equal to 0.6.

公开(公告)号：US20230160545A1

公开(公告)日：2023-05-25

申请号：US18158207

申请日：2023-01-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungwoo CHOI ,  Seongmin KIM ,  Jeongeun YUN ,  Chohui KIM ,  Seulgee LEE ,  Jeongrok OH ,  Chulsoo YOON

IPC: F21K9/64 ,  H01L25/075 ,  H01L33/50

CPC classification number: F21K9/64 ,  H01L25/0753 ,  H01L33/504 ,  F21Y2115/10

Abstract: A light emitting diode (LED) module that is configured to emit white light is provided. The LED module includes: a blue light emitting diode configured to emit blue light having a first peak wavelength of 420 nm to 465 nm; and a near-infrared wavelength conversion material that is configured to be excited by the blue light to emit additional light having a peak wavelength in a range of 740 nm to 900 nm, and further having a full width at half maximum (FWHM) of 120 nm or less. The near-infrared wavelength conversion material includes Ca(Al12-x-y,Gay)O19:xCr3+ (0≤x≤1, 0≤y≤6).

公开(公告)号：US20220210881A1

公开(公告)日：2022-06-30

申请号：US17500571

申请日：2021-10-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seulgee LEE ,  Seongmin KIM ,  Chohui KIM ,  Jeongeun YUN ,  Sungwoo CHOI ,  Jeongrok OH ,  Chulsoo YOON

IPC: H05B45/20 ,  H05B45/30 ,  F21K9/64 ,  H05B45/10 ,  H01L33/50

Abstract: An LED lighting apparatus, including an LED light source configured to emit white light having a first melanopic/photopic (M/P) ratio; a tuning LED light source configured to emit tuning blue light having a peak wavelength in a range of 465 nm to 495 nm; and a driving control unit configured to control currents respectively applied to the LED light source and the tuning LED light source to generate tuned white light having a second M/P ratio higher than the first M/P ratio