Angular color uniformity enhancement of white light-emitting diodes by remote micro-patterned phosphor film

Shudong Yu; Zongtao Li; Guanwei Liang; Yong Tang; Binhai Yu; Kaihang Chen

doi:doi:10.1364/prj.4.000140

Photonics Research, 2016, 4 (4): 04000140, Published Online: Sep. 29, 2016

Angular color uniformity enhancement of white light-emitting diodes by remote micro-patterned phosphor film Download： 1571次

Shudong Yu ^1,2Zongtao Li ^1,2,*Guanwei Liang ¹Yong Tang ¹Binhai Yu ¹Kaihang Chen ¹

Author Affiliations

¹ Key Laboratory of Surface Functional Structure Manufacturing of Guangdong High Education Institutes, South China University of Technology, Guangzhou 510640, China

² Optoelectronics Engineering Technology Research and Development Center, Foshan Nationstar Optoelectronics Co. Ltd., Foshan 528000, China

Figures & Tables

Fig. 1. Manufacturing process of RMPP film.

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Fig. 2. (a) Photograph of MP film. (b) SEM image of its micro-structure. (c) Photograph of RMPP film and (d) its cross-section SEM image.

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Fig. 3. (a) Schematic cross-sectional view. (b) Photograph of remote down-light lamp.

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Fig. 4. (a) Wavelength-dependent transmittance and reflectance. (b) Haze of the UF-MP film and DF-MP film. Inset: photographs of light spot of the UF-MP film and DF-MP film.

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Fig. 5. (a)–(c) Illumination patterns and (d) angular CCT distributions of white LEDs with RP film, single RMPP film, and double RMPP film.

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Fig. 6. (a) Normalized intensity of blue LED chip with and without the MP PDMS film. (b) YBR distributions of white LEDs with RP film, single RMPP film, and double RMPP film.

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Fig. 7. (a) Luminous flux and luminous efficiency. (b) Emission spectrum of white LEDs with RP film, single RMPP film, and double RMPP film.

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Fig. 8. Current-dependent CCT distributions for the RP film, single RMPP film, and double RMPP film configuration.

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Shudong Yu, Zongtao Li, Guanwei Liang, Yong Tang, Binhai Yu, Kaihang Chen. Angular color uniformity enhancement of white light-emitting diodes by remote micro-patterned phosphor film[J]. Photonics Research, 2016, 4(4): 04000140.

Angular color uniformity enhancement of white light-emitting diodes by remote micro-patterned phosphor film Download： 1571次

Fig. 1. Manufacturing process of RMPP film.

Fig. 2. (a) Photograph of MP film. (b) SEM image of its micro-structure. (c) Photograph of RMPP film and (d) its cross-section SEM image.

Fig. 3. (a) Schematic cross-sectional view. (b) Photograph of remote down-light lamp.

Fig. 4. (a) Wavelength-dependent transmittance and reflectance. (b) Haze of the UF-MP film and DF-MP film. Inset: photographs of light spot of the UF-MP film and DF-MP film.

Fig. 5. (a)–(c) Illumination patterns and (d) angular CCT distributions of white LEDs with RP film, single RMPP film, and double RMPP film.

Fig. 6. (a) Normalized intensity of blue LED chip with and without the MP PDMS film. (b) YBR distributions of white LEDs with RP film, single RMPP film, and double RMPP film.

Fig. 7. (a) Luminous flux and luminous efficiency. (b) Emission spectrum of white LEDs with RP film, single RMPP film, and double RMPP film.

Fig. 8. Current-dependent CCT distributions for the RP film, single RMPP film, and double RMPP film configuration.

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Angular color uniformity enhancement of white light-emitting diodes by remote micro-patterned phosphor film Download： 1571次

Fig. 1. Manufacturing process of RMPP film.

Fig. 2. (a) Photograph of MP film. (b) SEM image of its micro-structure. (c) Photograph of RMPP film and (d) its cross-section SEM image.

Fig. 3. (a) Schematic cross-sectional view. (b) Photograph of remote down-light lamp.

Fig. 4. (a) Wavelength-dependent transmittance and reflectance. (b) Haze of the UF-MP film and DF-MP film. Inset: photographs of light spot of the UF-MP film and DF-MP film.

Fig. 5. (a)–(c) Illumination patterns and (d) angular CCT distributions of white LEDs with RP film, single RMPP film, and double RMPP film.

Fig. 6. (a) Normalized intensity of blue LED chip with and without the MP PDMS film. (b) YBR distributions of white LEDs with RP film, single RMPP film, and double RMPP film.

Fig. 7. (a) Luminous flux and luminous efficiency. (b) Emission spectrum of white LEDs with RP film, single RMPP film, and double RMPP film.

Fig. 8. Current-dependent CCT distributions for the RP film, single RMPP film, and double RMPP film configuration.

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