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): 0140
- Photonics Research
- Vol. 4, Issue 4, 0140 (2016)
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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