公开(公告)号：US10826608B2

公开(公告)日：2020-11-03

申请号：US16855725

申请日：2020-04-22

Applicant: Agency for Science, Technology and Research

Inventor： Ee Jin Teo ,  Chengyuan Yang ,  Jinghua Teng

IPC: H04B10/00 ,  H04B10/116 ,  H04B10/114

Abstract: Various embodiments may relate to a light emitting diode (LED) communication device including a communication interface configured to couple with an electronic device. The LED communication device may also include an electrical interface electrically coupled to the communication interface. The LED communication device may further include a light emitting diode electrically coupled to the electrical interface. The electrical interface may be configured to convert data signals received from the electronic device into driving signals transmitted to the light emitting diode during uplink, and to convert sensing signals received from the light emitting diode into data signals transmitted to the electronic device during downlink. The light emitting diode may be configured to convert the driving signals received from the electrical interface into a plurality of light pulses during uplink, and to convert a plurality of light pulses received by the light emitting diode into the sensing signals during downlink.

公开(公告)号：US10666357B2

公开(公告)日：2020-05-26

申请号：US16349812

申请日：2017-11-01

Applicant: Agency for Science, Technology and Research

Inventor： Ee Jin Teo ,  Chengyuan Yang ,  Jinghua Teng

IPC: H04B10/00 ,  H04B10/116 ,  H04B10/114

Abstract: Various embodiments may relate to a light emitting diode (LED) communication device including a communication interface configured to couple with an electronic device. The LED communication device may also include an electrical interface electrically coupled to the communication interface. The LED communication device may further include a light emitting diode electrically coupled to the electrical interface. The electrical interface may be configured to convert data signals received from the electronic device into driving signals transmitted to the light emitting diode during uplink, and to convert sensing signals received from the light emitting diode into data signals transmitted to the electronic device during downlink. The light emitting diode may be configured to convert the driving signals received from the electrical interface into a plurality of light pulses during uplink, and to convert a plurality of light pulses received by the light emitting diode into the sensing signals during downlink.

公开(公告)号：US20190363791A1

公开(公告)日：2019-11-28

申请号：US16349812

申请日：2017-11-01

Applicant: Agency for Science, Technology and Research

Inventor： Ee Jin Teo ,  Chengyuan Yang ,  Jinghua Teng

IPC: H04B10/116 ,  H04B10/114

Abstract: Various embodiments may relate to a light emitting diode (LED) communication device including a communication interface configured to couple with an electronic device. The LED communication device may also include an electrical interface electrically coupled to the communication interface. The LED communication device may further include a light emitting diode electrically coupled to the electrical interface. The electrical interface may be configured to convert data signals received from the electronic device into driving signals transmitted to the light emitting diode during uplink, and to convert sensing signals received from the light emitting diode into data signals transmitted to the electronic device during downlink The light emitting diode may be configured to convert the driving signals received from the electrical interface into a plurality of light pulses during uplink, and to convert a plurality of light pulses received by the light emitting diode into the sensing signals during downlink.

公开(公告)号：US20240426659A1

公开(公告)日：2024-12-26

申请号：US18705721

申请日：2022-10-25

Applicant: Agency for Science, Technology and Research

Inventor： Ee Jin Teo ,  Chi Jin Darren Neo ,  Min Xin Maxine Ong

IPC: G01J3/02 ,  G01J3/12 ,  G01J3/42 ,  G01J3/433 ,  G01J3/44

Abstract: Disclosed are optical detection device, system, and method which increase photodetection area and enables omnidirectional and self-aligning photodetection through the use of a fluorescent lens. An optical detection device comprises a fluorescent lens having a light collecting area being a spherical, hemispherical, or cylindrical surface of the fluorescent lens, and a light outcoupling area; and a fluorophore dispersed throughout the light collection area and the fluorescent lens, wherein the fluorophore is excitable by a light beam, which is incident at any position or angle in relation to the spherical surface, to produce a light emission, wherein the light outcoupling area is arranged to allow an extraction of the light emission from the fluorescent lens, wherein the light collecting area is larger than the light outcoupling area.

公开(公告)号：US11688826B2

公开(公告)日：2023-06-27

申请号：US16611547

申请日：2018-06-05

Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

Inventor： Ee Jin Teo ,  Yi Shi ,  Chengyuan Yang ,  Qing Yang Steve Wu ,  Yin Thai Chan ,  Yang Xu ,  Chi Jin Darren Neo

IPC: H01L33/06 ,  H01L33/00

CPC classification number: H01L33/06 ,  H01L33/0004

Abstract: A light emitting device, a method of fabricating a light emitting device and a method of controlling light emission. The light emitting device includes a plasmonic structure. The plasmonic structure is configured to have a plurality of localized surface plasmon resonances. The light emitting device also includes a broadband light emitting layer having an emission spectrum substantially overlapping wavelengths of the localized surface plasmon resonances. A spacer layer is disposed between the plasmonic structure and the broadband light emitting layer. A color of light emitted by the broadband light emitting layer is tunable by the localized surface plasmon resonances of the plasmonic structure.

公开(公告)号：US20200259564A1

公开(公告)日：2020-08-13

申请号：US16855725

申请日：2020-04-22

Applicant: Agency for Science, Technology and Research

Inventor： Ee Jin Teo ,  Chengyuan Yang ,  Jinghua Teng

IPC: H04B10/116 ,  H04B10/114

Abstract: Various embodiments may relate to a light emitting diode (LED) communication device including a communication interface configured to couple with an electronic device. The LED communication device may also include an electrical interface electrically coupled to the communication interface. The LED communication device may further include a light emitting diode electrically coupled to the electrical interface. The electrical interface may be configured to convert data signals received from the electronic device into driving signals transmitted to the light emitting diode during uplink, and to convert sensing signals received from the light emitting diode into data signals transmitted to the electronic device during downlink. The light emitting diode may be configured to convert the driving signals received from the electrical interface into a plurality of light pulses during uplink, and to convert a plurality of light pulses received by the light emitting diode into the sensing signals during downlink.

公开(公告)号：US09768347B2

公开(公告)日：2017-09-19

申请号：US14787122

申请日：2014-04-28

Applicant: Agency for Science, Technology and Research ,  National University of Singapore

Inventor： Ee Jin Teo ,  Jinghua Teng ,  Chengyuan Yang ,  Andrew Bettiol

IPC: H01L33/06 ,  H01L33/00 ,  H01L33/22 ,  H01L33/32 ,  H01L33/38 ,  H01L33/50

CPC classification number: H01L33/06 ,  H01L33/007 ,  H01L33/22 ,  H01L33/32 ,  H01L33/38 ,  H01L33/50 ,  H01L2933/0016 ,  H01L2933/0025

Abstract: A light emitting diode device (LED) is provided. The LED comprises a first-doped layer on a substrate, an active layer on the first-doped layer, a second-doped layer on the active layer, and a metal layer on the second-doped layer. The second-doped layer is patterned on a surface opposite to the active layer to define a first portion and a second portion. The first portion of the second-doped layer has a first portion thickness constrained for electron-hole pairs in the active layer to couple efficiently to a surface plasmon mode at an interface of the metal layer and the second-doped layer thereby increasing the spontaneous emission rate of the LED. The second portion of the second-doped layer has a second portion thickness sufficient to ensure formation of a p-n junction in the LED.

公开(公告)号：US20160087143A1

公开(公告)日：2016-03-24

申请号：US14787122

申请日：2014-04-28

Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH ,  NATIONAL UNIVERSITY OF SINGAPORE

Inventor： Ee Jin Teo ,  Jinghua Teng ,  Chengyuan Yang ,  Andrew Bettiol

IPC: H01L33/06 ,  H01L33/32 ,  H01L33/50 ,  H01L33/00

CPC classification number: H01L33/06 ,  H01L33/007 ,  H01L33/22 ,  H01L33/32 ,  H01L33/38 ,  H01L33/50 ,  H01L2933/0016 ,  H01L2933/0025

Abstract: A light emitting diode device (LED) is provided. The LED comprises a first-doped layer on a substrate, an active layer on the first-doped layer, a second-doped layer on the active layer, and a metal layer on the second-doped layer. The second-doped layer is patterned on a surface opposite to the active layer to define a first portion and a second portion. The first portion of the second-doped layer has a first portion thickness constrained for electron-hole pairs in the active layer to couple efficiently to a surface plasmon mode at an interface of the metal layer and the second-doped layer thereby increasing the spontaneous emission rate of the LED. The second portion of the second-doped layer has a second portion thickness sufficient to ensure formation of a p-n junction in the LED.

Abstract translation: 提供了一种发光二极管器件（LED）。 LED包括衬底上的第一掺杂层，第一掺杂层上的有源层，有源层上的第二掺杂层和第二掺杂层上的金属层。 第二掺杂层在与有源层相对的表面上被图案化以限定第一部分和第二部分。 第二掺杂层的第一部分具有受限于有源层中的电子 - 空穴对的第一部分厚度，以有效地耦合到金属层和第二掺杂层的界面处的表面等离子体模式，从而增加自发发射 LED的速率。 第二掺杂层的第二部分具有足以确保在LED中形成p-n结的第二部分厚度。