直下式LED黄疸灯的设计与制作
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摘要
研制了一款可在接收面上实现平面光谱分布均匀的直下式LED黄疸灯。首先,按照LED数量从少到多的顺序,在同一基板上依次对4种单色LED进行排布,使其分别在同一出光面上形成大小相近且照度均匀的光斑,进而使出光面乃至接收面上实现平面光谱分布均匀。其次,对直下式LED黄疸灯仿真验证,结果表明其确实可在接收面上实现平面光谱分布均匀。最后,在出光面上分别放置扩散板和棱镜膜,对两款直下式LED黄疸灯样品进行实验测试。测试结果表明:相较而言,在出光面上放置增光膜的直下式LED黄疸灯样品可以使接收面具有较多的光能量。但无论出光面上放置的是棱镜膜还是扩散板,在600 mm×300 mm的接收面上,直下式LED黄疸灯都能实现99. 9%以上的平面光谱分布均匀度值以及74%以上的照度均匀度值,符合国家婴幼儿光疗设备安全标准。
A direct-lit LED jaundice phototherapy lamp is proposed,which could achieve uniform planar spectral distribution on the receiving surface( baby crib). Firstly,according to the order of the number of LED from less to more,the arrangement mode of four kinds of monochromatic LEDs in the same substrate is designed,which could form four kinds of same size light field with uniform illuminance distribution on the same out-lighting surface respectively,and further to achieve uniform planar spectral distribution on the out-lighting surface and even receiving surface. Secondly,the simulation of the direct-lit LED jaundice phototherapy lamp shows that it can achieve uniform planar spectrum distribution on the receiving surface certainly. Finally,placing the diffusion plate or brightness enhancement film on the out-lighting surface of the direct-lit LED jaundice phototherapy lamp respectively,two kinds of LED jaundice phototherapy lamp samples are produced and the corresponding experiments are carried out. Results show that: in comparison,the LED jaundicelamp samples placing the brightness enhancement film on the out-lighting surface can make the receiving surface receive more energy. However,on the 600 mm × 300 mm receiving surface,two kinds of LED jaundice lamp samples,which the value of planar spectral distribution uniformity is over 99. 9% and the value of illumination distribution uniformity is over 74%,all meet national safety standards of infant phototherapy equipment.
A direct-lit LED jaundice phototherapy lamp is proposed,which could achieve uniform planar spectral distribution on the receiving surface( baby crib). Firstly,according to the order of the number of LED from less to more,the arrangement mode of four kinds of monochromatic LEDs in the same substrate is designed,which could form four kinds of same size light field with uniform illuminance distribution on the same out-lighting surface respectively,and further to achieve uniform planar spectral distribution on the out-lighting surface and even receiving surface. Secondly,the simulation of the direct-lit LED jaundice phototherapy lamp shows that it can achieve uniform planar spectrum distribution on the receiving surface certainly. Finally,placing the diffusion plate or brightness enhancement film on the out-lighting surface of the direct-lit LED jaundice phototherapy lamp respectively,two kinds of LED jaundice phototherapy lamp samples are produced and the corresponding experiments are carried out. Results show that: in comparison,the LED jaundicelamp samples placing the brightness enhancement film on the out-lighting surface can make the receiving surface receive more energy. However,on the 600 mm × 300 mm receiving surface,two kinds of LED jaundice lamp samples,which the value of planar spectral distribution uniformity is over 99. 9% and the value of illumination distribution uniformity is over 74%,all meet national safety standards of infant phototherapy equipment.
引文
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[13]GAN R T,GUO Z N,LIN J B. Spectralmatching research for light-emitting diode-based neonatal jaundice therapeutic device light source[J]. Appl. Phys. B,2015,120(4):645-651.
[14]朱继亦,任建伟,李葆勇,等.基于LED的光谱可调光源的光谱分布合成[J].发光学报,2010,31(6):882-887.ZHU J Y,REN J W,LI B Y,et al.. Synthesis of spectral distribution for LED-based source with tunable spectra[J].Chin. J. Lumin.,2010,31(6):882-887.(in Chinese)
[15]甘汝婷. LED特种光谱构造技术及其应用研究[D].厦门:华侨大学,2015.GAN R T. LED-based Special Spectral Constructing Technology and Its Application Research[D]. Xiamen:Huaqiao University,2005.(in Chinese)
[16]WHANG A J,CHEN Y Y,TENG Y T. Designing uniform illumination systems by surface-tailored lens and configurations of LED arrays[J]. J. Disp. Technol.,2009,5(3):94-103.
[17]YY 0669-2008.医用电气设备.第2部分:婴儿光治疗设备安全专用要求[S]. 2010-06-01.YY 0669-2008. Medical Electrical Equipment-Part 2-50:Particular Requirements for The Safety of Infant Phototherapy Equipment[S]. 2010-06-01.(in Chinese)
[18]孙学武,杨慎东,陈飞,等.光学增亮膜技术综述及其发展趋势[J].信息记录材料,2015,16(6):49-53.SUN X W,YANG S D,CHEN F,et al.. The technical review of bright enhancement film and its development trend[J].Inf. Rec. Mater.,2015,16(6):49-53.(in Chinese)
[2]FORELAND A M,ROSENBERG L,JOHANNESSEN B. Nurses’experiences using conventional overhead phototherapy versus fibreoptic blankets for the treatment of neonatal hyperbilirubinemia[J]. J. Neonatal Nursing,2016,22(3):108-114.
[3]李俊芳.新生儿黄疸治疗方法新进展[J].当代护士,2014(1):26-28.LI J F. New progress in the treatment of neonatal jaundice[J]. Today Nurse,2014(1):26-28.(in Chinese)
[4]朱媛媛,刘颖.蓝光照射结合腹部环形按摩对新生儿黄疸胆红素和黄疸消退情况的影响[J].中国医药导报,2017,14(21):139-142.ZHU Y Y,LIU Y. Influence of blue light irradiation combined with abdominal circular massage on bilirubin and jaundice regression in neonatal jaundice[J]. China Med. Herald,2017,14(21):139-142.(in Chinese)
[5]甘汝婷,郭震宁,林介本,等.新生儿黄疸治疗仪用LED光源的研究[J].光学学报,2015,35(4):368-373.GAN R T,GUO Z N,LIN J B,et al.. Research for light-emitting diode-based neonatal jaundice therapeutic device light source[J]. Acta Opt. Sinica,2015,35(4):368-373.(in Chinese)
[6]胡江,李晓原,赖兴强,等.不同光谱的发光二极管阵列光源照射对体外游离胆红素光化学降解效应的影响[J].中国医学物理学杂志,2011,28(1):2444-2446.HU J,LI X Y,LAI X Q,et al.. Effect of various light-emitting diode arrays on the efficacy of unconjugated bilirubin photochemical reaction:a randomized trial in vitro[J]. Chin. J. Medical Phys.,2011,28(1):2444-2446.(in Chinese)
[7]金鹏,喻春雨,周奇峰,等. LED在道路照明中的光效优势[J].光学精密工程,2011,19(1):51-55.JIN P,YU C Y,ZHOU Q F,et al.. Superior application of LED to street lighting[J]. Opt. Precision Eng.,2011,19(1):51-55.(in Chinese)
[8]冯奇斌,李亚妮,李其功,等.基于发光二极管配光曲线设计自由曲面透镜[J].光学精密工程,2016,24(8):1884-1893.FENG Q B,LI Y N,LI Q G,et. al. Design of double freeform surface lens based on LED radiation characteristics[J].Opt. Precision Eng.,2016,24(8):1884-1893.(in Chinese)
[9]苏祥菊.间歇性与持续性蓝光照射治疗新生儿黄疸的效果比较[J].中国继续医学教育,2017,9(26):96-97.SU X J. Comparison of intermittent and continuous blue light irradiation in the treatment of neonatal jaundice[J]. ChinaCont. Med. Edu.,2017,9(26):96-97.(in Chinese)
[10]LI X X,ZHANG Y X,LI W. Kangaroo mother care could significantly reduce the duration of phototherapy for babies with jaundice[J]. Int. J. Clin. Exp. Med.,2017,10(1):1690-1695.
[11]周康良.蓝光照射联合中药泡浴治疗新生儿病理性黄疸疗效分析[J].世界最新医学信息文摘,2017,17(36):155-156.ZHOU K L. Therapeutic effect of blue light irradiation combined with traditional Chinese medicine bath on neonatal pathological jaundice[J]. World Latest Med. Inf.,2017,17(36):155-156.(in Chinese)
[12]张佳宁,郭震宁,林介本,等.新生儿黄疸治疗仪光源的光生物安全[J].中国光学,2017,10(4):499-506.ZHANG J N,GUO Z N,LIN J B,et. al.. Photobiological safety of light source of neonatal jaundice therapeutic device[J].Chin. Opt.,2017,10(4):499-506.(in Chinese)
[13]GAN R T,GUO Z N,LIN J B. Spectralmatching research for light-emitting diode-based neonatal jaundice therapeutic device light source[J]. Appl. Phys. B,2015,120(4):645-651.
[14]朱继亦,任建伟,李葆勇,等.基于LED的光谱可调光源的光谱分布合成[J].发光学报,2010,31(6):882-887.ZHU J Y,REN J W,LI B Y,et al.. Synthesis of spectral distribution for LED-based source with tunable spectra[J].Chin. J. Lumin.,2010,31(6):882-887.(in Chinese)
[15]甘汝婷. LED特种光谱构造技术及其应用研究[D].厦门:华侨大学,2015.GAN R T. LED-based Special Spectral Constructing Technology and Its Application Research[D]. Xiamen:Huaqiao University,2005.(in Chinese)
[16]WHANG A J,CHEN Y Y,TENG Y T. Designing uniform illumination systems by surface-tailored lens and configurations of LED arrays[J]. J. Disp. Technol.,2009,5(3):94-103.
[17]YY 0669-2008.医用电气设备.第2部分:婴儿光治疗设备安全专用要求[S]. 2010-06-01.YY 0669-2008. Medical Electrical Equipment-Part 2-50:Particular Requirements for The Safety of Infant Phototherapy Equipment[S]. 2010-06-01.(in Chinese)
[18]孙学武,杨慎东,陈飞,等.光学增亮膜技术综述及其发展趋势[J].信息记录材料,2015,16(6):49-53.SUN X W,YANG S D,CHEN F,et al.. The technical review of bright enhancement film and its development trend[J].Inf. Rec. Mater.,2015,16(6):49-53.(in Chinese)