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公开(公告)号：US20250155276A1
公开(公告)日：2025-05-15
申请号：US18274016
申请日：2022-09-22
Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE
Inventor： Myoung Jin KIM , Joo Young LEE , Young Ho KIM , Hui Oon KIM , Hyo Jong KIM , Hyo Young JUNG
Abstract: The present invention relates to an optical fiber acoustic sensor with improved acoustic signal measurement sensitivity, and includes: a light source unit that generates and outputs pulsed light; an optical circulator that outputs the pulsed light output from the light source unit and input to an input terminal through an output terminal, and outputs light incident reversely from the output terminal through a detection terminal; a sensing optical fiber connected to the output terminal of the optical circulator and installed to extend over a measurement target region; at least one acoustic focusing member having the sensing optical fiber wound thereon multiple times, arranged in a measurement target region and adapted to focus an external acoustic signal; a light detection unit that detects Rayleigh scattered light scattered in the sensing optical fiber and traveling reversely; and a signal processing unit that control generation of the pulsed light by the light source unit and measures a vibration frequency and an intensity of acoustic received through the sensing optical fiber from a signal detected by the light detection unit, based on an output time point of the pulsed light.
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公开(公告)号：US20250082197A1
公开(公告)日：2025-03-13
申请号：US18488099
申请日：2023-10-17
Applicant: Korea Photonics Technology Institute
Inventor： Seon Man KIM , Min Kyu PARK , Sung Joon KIM , Kwang Hoon LEE
Abstract: Disclosed are an AR optical system for measurement of ocular dyskinesia with improved quality of photographed images, and an AR apparatus including the same. According to one aspect of the present disclosure, there are provided an AR optical system for measurement of ocular dyskinesia with improved quality of photographed images by resolving the problem of uneven brightness and darkness occurring in the images due to structural problems, and an AR apparatus including the same.
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公开(公告)号：US12045008B2
公开(公告)日：2024-07-23
申请号：US17403960
申请日：2021-08-17
Applicant: Korea Photonics Technology Institute
Inventor： Seon Kyu Yoon , Ha Mong Shim , Jin Su Lee , Kwang Hoon Lee
CPC classification number: G03H1/0005 , G01B9/021 , G01B11/164 , G03H1/0402 , G03H1/0443 , G03H1/0866 , G03H2001/005 , G03H2001/0415
Abstract: According to an embodiment, a holographic microscope comprises a light source, an optical system splitting light emitted from the light source into an object and a reflective mirror and inducing interference between light reflected by the object or transmitted through the object and light reflected by the reflective mirror, a first image sensor receiving the interference light and sensing interference information for the interference light, a second image sensor receiving the light reflected by the object or transmitted through the object and sensing information for the received light, and an image processor deriving a shape of the object based on the interference information sensed by the first image sensor and the information sensed by the second image sensor.
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公开(公告)号：US12026233B2
公开(公告)日：2024-07-02
申请号：US17499456
申请日：2021-10-12
Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE
Inventor： Sung Kuk Chun , Hoe Min Kim , Jeong Rok Yun , Un Yong Kim
CPC classification number: G06F18/22 , G06N3/04 , G06N3/08 , G06T7/0002 , G06T7/90 , G06V10/32 , G06V10/44 , G06V10/56 , G06T2207/10024 , G06T2207/20084 , G06T2207/30212
Abstract: According to an embodiment, a system comprises a communication module providing a communication interface, a camouflage pattern evaluation module performing an artificial intelligence-based camouflage pattern evaluation algorithm on an operation environment image and a camouflage pattern image, analyzing a similarity between the operation environment image and the camouflage pattern image, and obtaining an evaluation result of camouflage performance for the camouflage pattern in the operation environment, and a processor deriving a quantitative camouflage performance value for the evaluation result. The artificial intelligence-based camouflage performance evaluation algorithm extracts feature information for the operation environment image and the camouflage pattern image and analyzes the similarity in color, pattern, or structure between the operation environment image and the camouflage pattern image based on the extracted feature information.
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公开(公告)号：US20240200767A1
公开(公告)日：2024-06-20
申请号：US18555544
申请日：2022-12-14
Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE
Inventor： Sun Hee AHN , Ki Hyun KIM , In Hee SHIN
CPC classification number: F21V29/70 , A61N5/0603 , A61N5/062 , G02B6/0008 , A61N2005/0606 , A61N2005/0663 , A61N2005/0666
Abstract: The present invention relates to a curing light with a heat dissipation structure, including: a light source for emitting light for curing a gum inflammation treatment material including a photosensitizer; a control board for controlling the light source; a housing for accommodating the light source and the control board; and heat sinks for dissipating the heat generated from the light source, wherein the heat sinks include: a first heat sink adapted to accommodate the light source and dissipate the heat generated from the light source; and a second heat sink coupled to the first heat sink in such a way as to accommodate the light source, together with the first heat sink, and having a light transmission hole through which the light emitted from the light source is transmitted.
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Patent Agency Ranking
公开(公告)号：US20240144462A1
公开(公告)日：2024-05-02
申请号：US18495880
申请日：2023-10-27
Applicant: Korea Photonics Technology Institute
Inventor： Hoe Min KIM , Sung Kuk CHUN , Seon Man KIM , Kwang Hoon LEE , Jeong Rok YUN , Un Yong KIM
CPC classification number: G06T7/0004 , G06T7/11 , G06V20/64 , G06T2200/04 , G06T2207/10028
Abstract: Disclosed are an apparatus and system for evaluating a welding condition on the basis of three-dimensional data. An aspect of the present embodiment provides an apparatus for evaluating a welding condition, the apparatus including a communication unit configured to receive a three-dimensional image for an evaluation target from the outside, a base material recognition unit configured to recognize a base material from the three-dimensional image for the evaluation target by using a point cloud, a bead extraction unit configured to extract a welding bead welded between the base materials, a bead cross-section acquisition unit configured to acquire cross-sections at preset intervals for the extracted welding bead, and a profile analysis unit configured to analyze a profile of the welding bead for the cross-section acquired by the bead cross-section acquisition unit.
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公开(公告)号：US11914143B2
公开(公告)日：2024-02-27
申请号：US16719981
申请日：2019-12-19
Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE
Inventor： Seonkyu Yoon , Sungkuk Chun , Kwanghoon Lee
CPC classification number: G02B27/0101 , G02B27/288 , G02B27/4205
Abstract: An augmented reality device includes an image output unit disposed at a preset angle from a horizontal direction to output an augmented reality image of a preset polarization direction, a polarization reflection film reflecting light of the preset polarization direction and transmitting other light than the light of the preset polarization direction, and an optical component disposed on a light path of an image output from the image output unit. The optical component has a preset refractive index and a preset shape. The polarization reflection film is applied on a first surface of the optical component which is positioned farther away from the image output unit.
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公开(公告)号：US20240063608A1
公开(公告)日：2024-02-22
申请号：US18232922
申请日：2023-08-11
Applicant: Korea Photonics Technology Institute
Inventor： Keon Hwa LEE , Young Hee CHOI
CPC classification number: H01S5/18377 , H01S5/3216 , H01S5/18347 , H01S2301/176
Abstract: Disclosed are a micro VCSEL with improved beam quality and a micro VCSEL array. An embodiment of the present invention provides a micro VCSEL with improved beam quality of light or laser to be oscillated and a micro VCSEL array capable of improving manufacturing efficiency and minimizing efficiency degradation due to errors occurring during a transfer.
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公开(公告)号：US20240008173A1
公开(公告)日：2024-01-04
申请号：US18248257
申请日：2020-11-20
Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE
Inventor： Gi Dong SA , Ja Yeon KIM , Sa Ung KIM , Ji Ho JEONG , Eunbee KIM
CPC classification number: H05K1/0283 , H05K1/0346 , H05K1/111 , H05K3/005 , H05K2201/0154 , H05K2201/09227 , H05K2201/10106 , H05K2201/10037 , H05K2201/10545
Abstract: A stretchable substrate and a manufacturing method of the stretchable substrate are disclosed. In a step of manufacturing a flexible substrate, a circuit pattern composed of one or more mounting pad parts configured to cause electronic parts to be mounted to a polyimide film PI having a fixed size is formed, and a wiring pattern configured to circuit-connect the mounting pad parts is formed, and further an outer circumferential line of the circuit pattern is realized in a cutting line for cutting. In a step of mounting parts, the electronic parts are mounted on the circuit pattern of the flexible substrate. In a punching step for cutting the cutting line, a punching jig set to be aligned to the cutting line of the flexible substrate on which the parts are mounted is utilized, thereby realizing the excellent tensile performance of wiring configured to connect a circuit.
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公开(公告)号：US20230357072A1
公开(公告)日：2023-11-09
申请号：US17777431
申请日：2021-04-21
Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE
Inventor： Ju Hyeon CHOI , Jeong Hwan IN , Seon Hoon KIM
Abstract: A composition for mid-infrared light transmitting glass and a method for preparing same are disclosed. Provided according to an embodiment of the present invention are a composition for mid-infrared light transmitting glass and a method for preparing same, wherein the composition can be manufactured into a lens that has both excellent optical properties and physical properties.
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