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醫(yī)用LED設備光譜輻亮度的測量方法研究

Research of spectral radiance measurement methods for medical LED equipment

作者: 劉艷珍  孟祥峰  王浩  任海萍 
單位:中國食品藥品檢定研究院 (北京100050)
關鍵詞: 醫(yī)用LED設備;光譜輻亮度;表觀光源;測量視場;  視網膜 
分類號:R318.6
出版年·卷·期(頁碼):2016·35·5(533-537)
摘要:

目的 在醫(yī)用LED設備的光生物安全性評價中,目前尚無相關標準詳細規(guī)定不同醫(yī)用LED設備的光譜輻亮度應如何進行測量,而不同的測量方法和測量方案對測試結果的影響很大,本文將研究一種適用于醫(yī)用LED設備的光譜輻亮度測量方案。方法 本研究基于人眼簡化模型,利用凸透鏡成像的原理針對不同光束類型進行測量,研究并給出不同情況下表觀光源和光譜輻亮度的檢測原理和檢測方法,并實現了實際測量。結果 測量結果與醫(yī)用LED設備的光生物安全性分類一致。結論 在實際測量過程中,應根據設備的光束類型選擇合適的測試方案,以實現光譜輻亮度的精確測量。


Objective In the process of light biological safety evaluation for medical LED equipments, there are no standards to detail how to measure the spectral radiance. Also different measurement methods can result in a great impact on the test results. This article examines one measurement program of spectral radiance for medical LED device. Methods Based on the principles of the simplified model of human eyes, this paper uses the convex imaging principle to classify the medical LED devices according to the beam types. Also this paper studies and gives the detection principle and test methods for the measurement of apparent source and spectral radiance under different situations which is achieved in actual measurement. Results The measurement result is consistent to the optical safety classification for medical LED equipment. Conclusions In order to achieve accurate measurement of spectral radiance, the appropriate test program should be selected according to the type of light beam.

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