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公开(公告)号：US12181629B2
公开(公告)日：2024-12-31
申请号：US17625065
申请日：2020-06-24
Applicant: Agency for Science, Technology and Research
Inventor： Zeng Wang , Jinghua Teng , Shijie Wang , Ming Yang
Abstract: Various embodiments may relate to an optical device. The optical device may include a stacked structure having a first surface and a second surface opposite the first surface. The stacked structure may include a plurality of holes or grooves extending from the first surface towards the second surface. The stacked structure may include a transition metal dichalcogenide material (TMDC) material. A thickness of the stacked structure may be of any value less than 100 nm.
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公开(公告)号：US11714055B2
公开(公告)日：2023-08-01
申请号：US17842391
申请日：2022-06-16
Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
Inventor： Lu Ding , Jinghua Teng
Abstract: Systems and methods for laser stimulated lock-in thermography (LLT) crack detection are provided. The system includes a spatial light modulator and a controller. The spatial light modulator reflects a laser beam to focus the laser beam onto a sample for detection of a crack, hole or scratch. The controller is coupled to the spatial light modulator and controls operation of the spatial light modulator to switch focus of the laser beam onto the sample between a plurality of LLT focus configurations for detection of the crack, hole or scratch on the sample. The method includes using a first one of the plurality of LLT configurations for coarse scanning of the sample to detect a crack, hole or scratch on the sample and, when a crack, hole or scratch is detected on the sample, switching to a second one of the plurality of LLT configurations for fine scanning of the crack, hole or scratch on the sample to determine one or more parameters of the crack, hole or scratch on the sample.
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公开(公告)号：US11155113B2
公开(公告)日：2021-10-26
申请号：US16754317
申请日：2018-11-02
Applicant: Agency for Science, Technology and Research
Inventor： Kun Huang , Jinghua Teng , Xiao Ming Goh , Junhao Shawn Tan
IPC: B42D25/328 , G03H1/02 , G06K19/16 , B42D25/373 , B42D25/41 , B42D25/30 , G06N3/12 , G03H1/22 , G03H1/00
Abstract: There is provided a holographic security element including a substrate; and an array of nano-reflectors configured to form a pattern on the substrate and to generate a holographic image corresponding to the pattern at a predetermined distance from the substrate when irradiated with a predetermined light source. In particular, the array of nano-reflectors is configured to generate the holographic image at the predetermined distance to have a size that is larger than a size of the pattern. There is also provided a method of forming the holographic security element, and an article having one or more holographic security elements incorporated therein.
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公开(公告)号：US20200331283A1
公开(公告)日：2020-10-22
申请号：US16754317
申请日：2018-11-02
Applicant: Agency for Science, Technology and Research
Inventor： Kun Huang , Jinghua Teng , Xiao Ming Goh , Junhao Shawn Tan
IPC: B42D25/328 , G03H1/02 , G06K19/16
Abstract: There is provided a holographic security element including a substrate; and an array of nano-reflectors configured to form a pattern on the substrate and to generate a holographic image corresponding to the pattern at a predetermined distance from the substrate when irradiated with a predetermined light source. In particular, the array of nano-reflectors is configured to generate the holographic image at the predetermined distance to have a size that is larger than a size of the pattern. There is also provided a method of forming the holographic security element, and an article having one or more holographic security elements incorporated therein.
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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.
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Patent Agency Ranking
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.
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公开(公告)号：US20220283343A1
公开(公告)日：2022-09-08
申请号：US17625065
申请日：2020-06-24
Applicant: Agency for Science, Technology and Research
Inventor： Zeng Wang , Jinghua Teng , Shijie Wang , Ming Yang
Abstract: Various embodiments may relate to an optical device. The optical device may include a stacked structure having a first surface and a second surface opposite the first surface. The stacked structure may include a plurality of holes or grooves extending from the first surface towards the second surface. The stacked structure may include a transition metal dichalcogenide material (TMDC) material. A thickness of the stacked structure may be of any value less than 100 nm.
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公开(公告)号：US20200041432A1
公开(公告)日：2020-02-06
申请号：US16498814
申请日：2018-03-29
Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
Inventor： Lu Ding , Jinghua Teng
IPC: G01N25/72
Abstract: Systems and methods for laser stimulated lock-in thermography (LLT) crack detection are provided. The system includes a spatial light modulator and a controller. The spatial light modulator reflects a laser beam to focus the laser beam onto a sample for detection of a crack, hole or scratch. The controller is coupled to the spatial light modulator and controls operation of the spatial light modulator to switch focus of the laser beam onto the sample between a plurality of LLT focus configurations for detection of the crack, hole or scratch on the sample. The method includes using a first one of the plurality of LLT configurations for coarse scanning of the sample to detect a crack, hole or scratch on the sample and, when a crack, hole or scratch is detected on the sample, switching to a second one of the plurality of LLT configurations for fine scanning of the crack, hole or scratch on the sample to determine one or more parameters of the crack, hole or scratch on the sample.
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公开(公告)号：US20230043101A1
公开(公告)日：2023-02-09
申请号：US17789166
申请日：2021-01-14
Applicant: Agency for Science, Technology and Research , ams AG
Inventor： Zhengtong Liu , Jinghua Teng , Hong Son Chu , Qian Wang , Jie Deng , Soo Seng Norman Ang , Xiao Song Eric Tang , Ching Eng Jason Png , Gernot Fasching , Lijian Mai , Anderson Singulani , Jozef Pulko
Abstract: Various embodiments may relate to an optical system. The optical system may include a lens structure configured to generate an outgoing Gaussian beam based on an incoming Gaussian beam. The optical system may also include a light source configured to provide the incoming Gaussian beam to the lens structure. The lens structure may be a flat lens or a phase plate.
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公开(公告)号：US20220307999A1
公开(公告)日：2022-09-29
申请号：US17842391
申请日：2022-06-16
Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
Inventor： Lu Ding , Jinghua Teng
Abstract: Systems and methods for laser stimulated lock-in thermography (LLT) crack detection are provided. The system includes a spatial light modulator and a controller. The spatial light modulator reflects a laser beam to focus the laser beam onto a sample for detection of a crack, hole or scratch. The controller is coupled to the spatial light modulator and controls operation of the spatial light modulator to switch focus of the laser beam onto the sample between a plurality of LLT focus configurations for detection of the crack, hole or scratch on the sample. The method includes using a first one of the plurality of LLT configurations for coarse scanning of the sample to detect a crack, hole or scratch on the sample and, when a crack, hole or scratch is detected on the sample, switching to a second one of the plurality of LLT configurations for fine scanning of the crack, hole or scratch on the sample to determine one or more parameters of the crack, hole or scratch on the sample.
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