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    • 4. 发明授权
    • Multi-site optical power calibration system and method
    • 多站点光功率校准系统及方法
    • US07649622B1
    • 2010-01-19
    • US11824216
    • 2007-06-30
    • Ke-Cai ZengSteven CumminsEdward HuberVincent UySteven SandersPatrick ZicolelloBrett A. Spurlock
    • Ke-Cai ZengSteven CumminsEdward HuberVincent UySteven SandersPatrick ZicolelloBrett A. Spurlock
    • G01J1/10G01J1/12
    • G01J1/08G01J1/16G01J2001/0481G01J2001/1673G01J2001/4252
    • A test system and method are provided for testing in parallel radiant output of multiple light emitting devices. Generally, the method involves: (i) providing a system having a master, calibrated power meter (CPM), a source transfer standard (STS), and multiple secondary, test site power meters (TSPMs); (ii) determining a relationship between electrical power supplied to the STS and a radiant output therefrom as measured by the CPM; (iii) calibrating the TSPMs using the STS and the relationship between the power supplied to the STS and the radiant output therefrom as determined by the CPM; and (iv) positioning the devices undergoing test on a fixture of the test system and positioning the fixture relative to the TSPMs to test radiant outputs of the devices. Preferably, the TSPMs are calibrated by exposing each to the STS at a known power, determining a difference between the radiant output measured by the CPM and TSPM, using this difference as an offset that is added to the a signal from the TSPM to provide a corrected radiant output for the device under test. Other embodiments are also disclosed.
    • 提供了一种用于测试多个发光器件的并行辐射输出的测试系统和方法。 通常,该方法包括:(i)提供具有主,校准功率计(CPM),源传输标准(STS)和多个次级测试站功率计(TSPM)的系统; (ii)确定由CPM测量的提供给STS的电力与其辐射输出之间的关系; (iii)使用STS校准TSPM,以及由CPM确定的提供给STS的功率与辐射输出之间的关系; 以及(iv)将经过测试的设备定位在测试系统的固定装置上并相对于TSPM定位固定装置以测试装置的辐射输出。 优选地,TSPM通过以已知功率将每个接收到STS进行校准,确定由CPM和TSPM测量的辐射输出之间的差异,使用该差作为相加于来自TSPM的信号以提供 被测器件的校正辐射输出。 还公开了其他实施例。