公开(公告)号：US11009392B2

公开(公告)日：2021-05-18

申请号：US16511065

申请日：2019-07-15

Applicant: Kookmin University Industry Academy Cooperation Foundation

Inventor： Young Rag Do ,  Ji Hye Oh

IPC: G01J1/44 ,  G01J1/04 ,  A61B5/00

Abstract: The present disclosure provides a circadian illuminance measuring apparatus including: a circadian lambda filter configured to pass external light according to a circadian sensitivity curve; a light sensor configured to sense the external light has passed through the circadian lambda filter, convert the external light into an analog signal, and output the analog signal; and a circadian illuminance calculator configured to convert the analog signal into a digital signal to calculate circadian illuminance of the external light.

公开(公告)号：US12155004B2

公开(公告)日：2024-11-26

申请号：US17563393

申请日：2021-12-28

Applicant: KOOKMIN UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION

Inventor： Young Rag Do

IPC: H01L33/00

Abstract: The present disclosure relates to a method of separating a plurality of light-emitting diode (LED) structures from a wafer. According to the method, the LED structures each having a desired size, thickness, and shape can be separated from the wafer, using a commercialized wafer, without damage to the LED structures even without considering the presence or absence of a sacrificial layer and specifically pre-designing a thickness of semiconductor layers in the wafer from the time of wafer manufacturing.

公开(公告)号：US12268036B2

公开(公告)日：2025-04-01

申请号：US18089314

申请日：2022-12-27

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  Kookmin University Industry Academy Cooperation Foundation

Inventor： Phillip Lee ,  Byoung Koun Min ,  Je Hyeong Jung ,  Young Rag Do ,  Chan Woo Lee

IPC: H10F77/42 ,  H02S40/22

Abstract: According to a main objective of the present invention, the three-dimensional arrangement of solar cells is adjusted so as to use sunlight directly coming from the sun mainly for solar power generation while transmitting wavelengths necessary for the growth of plants and reflecting wavelengths unnecessary for or hindering the growth of plants among wavelengths of sunlight passing through the solar cells to use the reflected wavelengths for additional solar power generation.
Sunlight reflected by the dichroic optical filter may be used to additionally generate electricity using solar cells provided perpendicular to the dichroic optical filter, thereby maximizing the use efficiency of sunlight.

公开(公告)号：US11673001B2

公开(公告)日：2023-06-13

申请号：US16511268

申请日：2019-07-15

Applicant: Kookmin University Industry Academy Cooperation Foundation

Inventor： Young Rag Do ,  Ji Hye Oh

IPC: A61N5/06 ,  A61M21/02 ,  A61M21/00 ,  A61B5/00 ,  H05B44/00

CPC classification number: A61N5/0618 ,  A61M21/00 ,  A61M21/02 ,  A61B5/4857 ,  A61M2021/0005 ,  A61M2021/0044 ,  A61N2005/0636 ,  H05B44/00

Abstract: The present disclosure provides a circadian rhythm correcting apparatus including a bio-illuminance measuring part configured to measure bio-illuminance of external light, a light source configured to irradiate light of a circadian wavelength band toward a retinal ganglion cell, a light source driver configured to drive the light source by supplying power to the light source, and a controller configured to control the light source driver on the basis of the bio-illuminance measured by the bio-illuminance measuring part, to correct the circadian rhythm.

公开(公告)号：US20200230346A1

公开(公告)日：2020-07-23

申请号：US16525183

申请日：2019-07-29

Applicant: KOOKMIN UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION

Inventor： Hyun Sun Mo ,  Young Rag Do ,  Dae Jeong Kim ,  Dae Hwan Kim ,  Sung Yeon Jang ,  In Hwan Jung ,  Dong Myung Kim ,  Seong Jin Choi ,  Sanggyu Yim ,  Hyung Min Kim ,  Sun Woong Choi ,  Gu Min Jeong ,  Seung Min Lee

IPC: A61M21/02

Abstract: Disclosed are an apparatus and a system for managing circadian rhythm. The apparatus includes an illuminance measuring portion which measures a bio illuminance value of external light using a circadian lambda filter which passes the external light along according to a circadian rhythm sensitivity curve and a visual lambda filter which passes the external light along according to a visual sensitivity curve, a controller which outputs a control signal for reinforcing a user's circadian rhythm on the basis of the bio illuminance value, and a circadian rhythm reinforcing portion which emits light of a circadian wavelength band toward the user according to the control signal.

公开(公告)号：US12266740B2

公开(公告)日：2025-04-01

申请号：US17564740

申请日：2021-12-29

Applicant: KOOKMIN UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION

Inventor： Young Rag Do

IPC: H01L33/44 ,  H01L23/00 ,  H01L25/075 ,  H01L33/24 ,  H01L33/14 ,  H01L33/32 ,  H01L33/62

Abstract: The present disclosure relates to a full-color light-emitting diode (LED) display, and more particularly, to a full-color LED display using an ultra-thin LED element and a manufacturing method thereof.

公开(公告)号：US11305091B2

公开(公告)日：2022-04-19

申请号：US16525183

申请日：2019-07-29

Applicant: KOOKMIN UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION

Inventor： Hyun Sun Mo ,  Young Rag Do ,  Dae Jeong Kim ,  Dae Hwan Kim ,  Sung Yeon Jang ,  In Hwan Jung ,  Dong Myung Kim ,  Seong Jin Choi ,  Sanggyu Yim ,  Hyung Min Kim ,  Sun Woong Choi ,  Gu Min Jeong ,  Seung Min Lee

IPC: A61M21/02 ,  A61M21/00

Abstract: Disclosed are an apparatus and a system for managing circadian rhythm. The apparatus includes an illuminance measuring portion which measures a bio illuminance value of external light using a circadian lambda filter which passes the external light along according to a circadian rhythm sensitivity curve and a visual lambda filter which passes the external light along according to a visual sensitivity curve, a controller which outputs a control signal for reinforcing a user's circadian rhythm on the basis of the bio illuminance value, and a circadian rhythm reinforcing portion which emits light of a circadian wavelength band toward the user according to the control signal.

公开(公告)号：US11660464B2

公开(公告)日：2023-05-30

申请号：US16943707

申请日：2020-07-30

Applicant: Kookmin University Industry Academy Cooperation Foundation

Inventor： Young Rag Do ,  Changwook Kim ,  Yun Jae Eo

IPC: A61N5/06 ,  H05B47/16 ,  H05B45/10 ,  H05B45/20 ,  H05B47/175 ,  A61M21/00

CPC classification number: A61N5/0613 ,  A61M21/00 ,  H05B45/10 ,  H05B45/20 ,  H05B47/16 ,  H05B47/175 ,  A61M2021/0044 ,  A61M2021/0083 ,  A61M2205/051 ,  A61N2005/0663

Abstract: Disclosed is a lighting device for bright therapy and dark therapy, comprising: a light source part including a red light source, a green light source and a blue light source; a power supply part supplying a power to the light source part; and a controller adjusting, by controlling the power supply part, a bio illuminance to allow melatonin suppression value to exceed a first reference value during morning hours and to allow the melatonin suppression value to be less than a second reference value while maintaining a visual illuminance over a predetermined value during evening hours.

公开(公告)号：US20190252560A1

公开(公告)日：2019-08-15

申请号：US15906415

申请日：2018-02-27

Applicant: KOOKMIN UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION ,  KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Young Rag Do ,  Chang Wook Kim ,  Ji Hye Oh ,  Byoung Koun Min

IPC: H01L31/0216 ,  H01L31/054

CPC classification number: H01L31/02167 ,  H01L31/032 ,  H01L31/0322 ,  H01L31/0445 ,  H01L31/054

Abstract: The present invention provides a colored thin film solar cell capable of minimizing reduction of efficiency of a thin film solar cell and improving a utility value by visually changing a black color of the thin film solar cell into an aesthetically pleasing color to exhibit an exterior appearance, thereby facilitating commercialization of the thin film solar cell, and provides a method for manufacturing the same.