[1] SCHUBERT E F. Lightemitting diodes[M]. 2nd ed. Cambridge: Cambridge University Press, 2006.
[2] LIU S, LUO X. LED packaging f lighting applications: design, manufacturing testing[M]. Singape: John Wiley & Sons (Asia) Pte Ltd, 2011: 3366.
[3] M R KRAMES, O B SHCHEKIN, R MUELLER-MACH, et al. Status and future of high-power light-emitting diodes for solid-state lighting. Journal of Display Technology, 3, 160-175(2007).
[4] WANG S, WANG K, CHEN F, et al. Design of primary optics f LED chip array in road lighting application[J]. Optics Express, 2011, 19(Sup 4): A716A724.
[5] R HU, X LUO, H ZHENG, et al. Design of a novel freeform lens for LED uniform illumination and conformal phosphor coating. Optics Express, 20, 13727-13737(2012).
[6] Z Y LIU, S LIU, K WANG, et al. Studies on optical consistency of white LEDs affected by phosphor thickness and concentration using optical simulation. IEEE Transactions on Components and Packaging Technologies, 33, 680-687(2010).
[7] S M WANG, X CHEN, M X CHEN, et al. Improvement in angular color uniformity of white light-emitting diodes using screen-printed multilayer phosphor-in-glass. Applied Optics, 53, 8492-8498(2014).
[8] L L LIU, X Z TAN, D D TENG, et al. Simultaneously enhancing the angular-color uniformity, luminous efficiency, and reliability of white light-emitting diodes by ZnO@SiO2 modified silicones. IEEE Transactions on Components, Packaging and Manufacturing Technology, 5, 599-605(2015).
[9] L NIAN, X PEI, Z ZHAO, et al. Review of optical designs for light-emitting diode packaging. IEEE Transactions on Components, Packaging and Manufacturing Technology, 9, 642-648(2019).
[10] K WANG, D WU, F CHEN, et al. Angular color uniformity enhancement of white light-emitting diodes integrated with freeform lenses. Optics Letters, 35, 1860-1862(2010).
[11] X FU, H ZHENG, S LIU, et al. Effects of packaging structure on optical performances of phosphor converted light emitting diodes. Frontiers of Optoelectronics, 5, 153-156(2012).
[12] R HU, Z Q GAN, X B LUO, et al. Design of double freeform-surface lens for LED uniform illumination with minimum Fresnel losses. Optik, 124, 3895-3897(2013).
[13] N Y LE, Z W SHI, X G SHI. Design of LED free form lens based on improved mesh method. Optik, 565-570(2019).
[14] J J CHEN, T Y WANG, K L HUANG, et al. Freeform lens design for LED collimating illumination. Optics Express, 20, 10984-10995(2012).
[15] T X LEE, M C TSAI, S C CHANG, et al. Miniaturized LED primary optics design used for short-distance color mixing. Applied Optics, 55, 9067-9073(2016).
[16] Y B ZHANG, M D DING, D S ZHAO, et al. Analysis and modeling of thermal-electric coupling effect of high-power monolithically integrated light-emitting diode. IEEE Transactions on Electron Devices, 65, 564-571(2018).
[17] M D DING, Y B ZHANG, J W XU, et al. High-power single-chip GaN-based white LED with 3058 lm. Electronics Letters, 52, 2050-2051(2016).
[18] Z Y LIU, S LIU, K WANG, et al. Optical analysis of color distribution in white LEDs with various packaging methods. IEEE Photonics Technology Letters, 20, 2027-2029(2008).
[19] Q Y YUE, K LI, F M KONG, et al. Analysis on the light extraction efficiency of GaN-based nanowires light-emitting diodes. IEEE Journal of Quantum Electronics, 49, 697-704(2013).
