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Patent Agency Ranking
公开(公告)号：US20250003799A1
公开(公告)日：2025-01-02
申请号：US18648774
申请日：2024-04-29
Applicant: HANGZHOU EVERFINE PHOTO-E-INFO CO., LTD.
Inventor： Jiangen PAN , Li SONG , Qian LI
Abstract: Present invention provides an imaging optical radiation measurement device, including a chassis, which is equipped with an optical lens. The chassis includes a first array detector, a spectral measurement module, a color filter wheel set, a light path switching device, and a signal processing and output unit. The color filter wheel set has a plurality of apertures, and two or more pieces of color filters are set in the apertures; the measured light beam passes through the optical lens and enters the chassis, and a light path switching Device will be measured beam at the same time or successively switched to two or more measurements in the optical path. The present invention also provides a display light field radiation measurement method to realize the measurement of hyperspectral information of the display to be measured.
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公开(公告)号：US20230408330A1
公开(公告)日：2023-12-21
申请号：US18249739
申请日：2020-09-17
Applicant: HANGZHOU EVERFINE PHOTO-E-INFO CO., LTD.
Inventor： Jiangen PAN , Yan HUANG , Zhijiang MAO , Qian LI
CPC classification number: G01J1/44 , G01J1/08 , G01J1/0474 , G01J2001/0481
Abstract: An integrating sphere photometer spectral response measurement method and system. The system comprises an integrating sphere photometer and three or more reference light sources having different peak wavelengths. The integrating sphere photometer consists of an integrating sphere (1) and a broadband photodetector (2), and the broadband photodetector (2) is mounted on the sphere wall of the integrating sphere (1). Emergent light of the reference light sources is incident to the integrating sphere (1); the total spectral radiation flux Pi(λ) (i=1, 2, . . . n) received by an integrating sphere photometer system is acquired; the response Mi (i=1, 2, . . . n) of a photometer of mixed light in the integrating sphere (1) is read by means of the broadband photodetector (2); an equation set is established; and the spectral responsivity Srel(λ) of the integrating sphere photometer is obtained by means of numerical solution.
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公开(公告)号：US20240310626A1
公开(公告)日：2024-09-19
申请号：US18648424
申请日：2024-04-28
Applicant: HANGZHOU EVERFINE PHOTO-E-INFO CO., LTD.
Inventor： Jiangen PAN , Li SONG , Qian LI
CPC classification number: G02B27/0093 , G02B27/0172 , G06V40/193 , G02B2027/0138 , G02B2027/014
Abstract: The present invention provides measurement methods and devices for near-eye displays. One of the measurement methods and devices of the present invention uses a surface array photoelectric sensor without an imaging lens and a transmission mechanism to obtain an exit pupil parameter of the near eye display to be measured, and uses a surface array photoelectric sensor without an imaging lens, a transmission mechanism and an imaging mechanism to obtain an optical axis position of the near eye display to be measured. Another measurement method and device of the present invention controls the transmission mechanism by means of a programmed control system, so that the near-eye display to be measured and the optical receiving screen undergo relative motion, and the pupil exit parameter of the near-eye display to be measured is obtained by observing and analyzing the light spot on the optical receiving screen.
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公开(公告)号：US20160041112A1
公开(公告)日：2016-02-11
申请号：US14775127
申请日：2013-12-24
Applicant: EVERFINE PHOTO-E-INFO CO.,LTD.
Inventor： Jiangen PAN , Cong CHEN , Yan HUANG
IPC: G01N25/18
Abstract: The present invention provides a method for analysis of thermal structures, not only to reduce analysis errors caused by temperature measurement errors, but also to get the thermal resistance of contact interfaces and the internal resistance distribution of heat conduction components of a DUT, by establishing a heat conduction model of the DUT, solving and analyzing a mathematic heat conduction model on the basis of temperature data of a heat source and thermal model parameters, thus realizing the accurate quantitative analysis of thermal resistance structure of the DUT, comprehensively evaluating the thermal contact conditions inside the whole DUT, and providing an important basis for improving the heat dissipation design of LED and other devices. The analysis method features in simplicity, high accuracy, high speed, wide application range, etc.
Abstract translation: 本发明提供了一种用于分析热结构的方法，不仅可以减少由温度测量误差引起的分析误差，而且可以通过建立一个能够得到DUT的热传导部件的接触界面的热阻和内部电阻分布 对DUT的热传导模型，基于热源的温度数据和热模型参数求解和分析数学热传导模型，从而实现对DUT热阻结构的准确定量分析，综合评估热接触条件 在整个DUT内部，为改善LED等设备的散热设计提供了重要依据。 分析方法简单，精度高，速度快，应用范围广等特点。
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公开(公告)号：US20160011045A1
公开(公告)日：2016-01-14
申请号：US14772970
申请日：2013-12-24
Applicant: EVERFINE PHOTO-E-INFO CO., LTD.
Inventor： Jiangen PAN
CPC classification number: G01J1/44 , G01J1/0233 , G01J1/42 , G01J3/0272 , G01J3/0286 , G01J3/0291 , G01J3/28 , G01J3/36 , G01J2001/444
Abstract: The present invention discloses a handheld optical radiation meter and a correction method thereof. The handheld optical radiation meter has a photometric measurement module, a spectral measurement module and a screen. The spectral quantities of the spectral measurement module are employed to correct the spectral mismatch error of the photometric measurement module. With simple configuration, the present invention can realize high accuracy photometry and chromaticity measurement within a wide-span dynamic range, and has the characteristics of complete test functions, high measurement accuracy, convenient operation, low cost, etc.
Abstract translation: 本发明公开了一种手持式光学辐射计及其校正方法。 手持式光学辐射计具有光度测量模块，光谱测量模块和屏幕。 使用光谱测量模块的光谱量来校正光度测量模块的光谱失配误差。 本发明结构简单，可在宽范围动态范围内实现高精度测光和色度测量，具有测试功能齐全，测量精度高，操作方便，成本低等特点。
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