Abstract

An advanced laser headlight module (LHM) employing highly reliable glass phosphor is demonstrated. The novel glass-based YAG phosphor-converter layers fabricated by low-temperature of 750°C exhibited better thermal stability. The LHM consisted of a 5 × 1 blue laser diode array, an aspherical lens, a glass phosphor-converter layer with an aluminum thermal dissipation substrate, and a dichroic filter to allow pass blue light and reflect yellow phosphor light. The 5 × 1 blue laser array was packaged with five blue lasers having optical power of 1.2 W per laser. The LHM exhibited total output optical power of 6 W, luminous flux of 1860 lm, relative color temperature of 4100 K, and efficiency of more than 310 lm/W. The high-beam patterns of the LHMs were measured to be 45,000 luminous intensity (cd) at 0°, 31,000 cd at ± 2.5°, and 12,500 cd at ± 5°, which were well satisfied the ECE R112 class B regulation. The proposed high-performance LHM with highly reliable glass-based phosphor-converter layer fabricated by low temperature is favorable as one of the promising LHM candidates for use in the next-generation automobile headlight applications.

© 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

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References

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2018 (1)

L. Wang, R. J. Xie, T. Suehiro, T. Takeda, and N. Hirosaki, “Down-conversion nitride materials for solid State lighting: recent advances and perspectives,” Chem. Rev. 118(4), 1951–2009 (2018).
[Crossref] [PubMed]

2017 (1)

Y. P. Chang, J. K. Chang, W. C. Cheng, Y. Y. Kuo, C. N. Liu, L. Y. Chen, and W. H. Cheng, “New scheme of a highly-reliable glass-based color wheel for next-generation laser light engine,” Opt. Mater. Express 7(3), 121–128 (2017).
[Crossref]

2016 (5)

A. T. Wieg, E. H. Penilla, C. L. Hardin, Y. Kodera, and J. E. Garay, “Broadband white light emission from Ce:AlN ceramics: High thermal conductivity down-converters for LED and laser-driven solid state lighting,” APL Mater. 4(12), 126105 (2016).
[Crossref]

Y. H. Song, E. K. Ji, B. W. Jeong, M. K. Jung, E. Y. Kim, and D. H. Yoon, “High power laser-driven ceramic phosphor plate for outstanding efficient white light conversion in application of automotive lighting,” Sci. Rep. 6(1), 31206 (2016).
[Crossref] [PubMed]

K. Yoshimura, K. Annen, H. Fukunaga, M. Harada, M. Izumi, K. Takahashi, T. Uchikoshi, R. J. Xie, and N. Hirosaki, “Optical properties of solid-state laser lighting devices using SiAl on phosphor−glass composite films as wavelength converters,” Jpn. J. Appl. Phys. 55(4), 042102 (2016).
[Crossref]

M. Cantore, N. Pfaff, R. M. Farrell, J. S. Speck, S. Nakamura, and S. P. DenBaars, “High luminous flux from single crystal phosphor-converted laser-based white lighting system,” Opt. Express 24(2), A215–A221 (2016).
[Crossref] [PubMed]

A. F. George, S. Al-waisawy, J. T. Wright, W. M. Jadwisienczak, and F. Rahman, “Laser-driven phosphor-converted white light source for solid-state illumination,” Appl. Opt. 55(8), 1899–1905 (2016).
[Crossref] [PubMed]

2014 (1)

C. C. Tsai, W. C. Cheng, J. K. Chang, S. Y. Huang, J. S. Liou, G. H. Chen, Y. C. Huang, J. S. Wang, and W. H. Cheng, “Thermal-stability comparison of glass- and silicone-based high-power phosphor-converted white-light-emitting diodes under thermal aging,” IEEE Trans. Devices, Mater. Relig. 14(1), 1–6 (2014).

2013 (3)

L. Ulrich, “Whiter bright with lasers,” IEEE Spectr. 50(11), 36–56 (2013).
[Crossref]

C. C. Tsai, W. C. Cheng, J. K. Chang, L. Y. Chen, J. H. Chen, Y. C. Hsu, and W. H. Cheng, “Ultra-high thermal-stable glass phosphor layer for phosphor-converted white light-emitting diodes,” IEEE J. Disp. Technol. 9(6), 427–432 (2013).
[Crossref]

J. J. Wierer, J. Y. Tsao, and D. S. Sizov, “Comparison between blue lasers and light-emitting diodes for future solid-state lighting,” Laser Photonics Rev. 7(6), 963–993 (2013).
[Crossref]

2011 (1)

J. Wang, C. C. Tsai, W. C. Cheng, M. H. Chen, C. H. Chung, and W. H. Cheng, “High thermal stability of phosphor-converted white light-emitting diodes employing Ce:YAG-doped glass,” IEEE J. Sel. Top. Quantum Electron. 17(3), 741–746 (2011).
[Crossref]

2003 (1)

A. Mills, “Solid state lighting-a world of expanding opportunities at LED 2002,” III–Vs Rev. 16(1), 30–33 (2003).
[Crossref]

1991 (1)

D. A. Atchison, “Design of aspheric intraocular lenses,” Ophthalmic Physiol. Opt. 11(2), 137–146 (1991).
[Crossref] [PubMed]

Al-waisawy, S.

Annen, K.

K. Yoshimura, K. Annen, H. Fukunaga, M. Harada, M. Izumi, K. Takahashi, T. Uchikoshi, R. J. Xie, and N. Hirosaki, “Optical properties of solid-state laser lighting devices using SiAl on phosphor−glass composite films as wavelength converters,” Jpn. J. Appl. Phys. 55(4), 042102 (2016).
[Crossref]

Atchison, D. A.

D. A. Atchison, “Design of aspheric intraocular lenses,” Ophthalmic Physiol. Opt. 11(2), 137–146 (1991).
[Crossref] [PubMed]

Cantore, M.

Chang, J. K.

Y. P. Chang, J. K. Chang, W. C. Cheng, Y. Y. Kuo, C. N. Liu, L. Y. Chen, and W. H. Cheng, “New scheme of a highly-reliable glass-based color wheel for next-generation laser light engine,” Opt. Mater. Express 7(3), 121–128 (2017).
[Crossref]

C. C. Tsai, W. C. Cheng, J. K. Chang, S. Y. Huang, J. S. Liou, G. H. Chen, Y. C. Huang, J. S. Wang, and W. H. Cheng, “Thermal-stability comparison of glass- and silicone-based high-power phosphor-converted white-light-emitting diodes under thermal aging,” IEEE Trans. Devices, Mater. Relig. 14(1), 1–6 (2014).

C. C. Tsai, W. C. Cheng, J. K. Chang, L. Y. Chen, J. H. Chen, Y. C. Hsu, and W. H. Cheng, “Ultra-high thermal-stable glass phosphor layer for phosphor-converted white light-emitting diodes,” IEEE J. Disp. Technol. 9(6), 427–432 (2013).
[Crossref]

Chang, Y. P.

Y. P. Chang, J. K. Chang, W. C. Cheng, Y. Y. Kuo, C. N. Liu, L. Y. Chen, and W. H. Cheng, “New scheme of a highly-reliable glass-based color wheel for next-generation laser light engine,” Opt. Mater. Express 7(3), 121–128 (2017).
[Crossref]

Chen, G. H.

C. C. Tsai, W. C. Cheng, J. K. Chang, S. Y. Huang, J. S. Liou, G. H. Chen, Y. C. Huang, J. S. Wang, and W. H. Cheng, “Thermal-stability comparison of glass- and silicone-based high-power phosphor-converted white-light-emitting diodes under thermal aging,” IEEE Trans. Devices, Mater. Relig. 14(1), 1–6 (2014).

Chen, J. H.

C. C. Tsai, W. C. Cheng, J. K. Chang, L. Y. Chen, J. H. Chen, Y. C. Hsu, and W. H. Cheng, “Ultra-high thermal-stable glass phosphor layer for phosphor-converted white light-emitting diodes,” IEEE J. Disp. Technol. 9(6), 427–432 (2013).
[Crossref]

Chen, L. Y.

Y. P. Chang, J. K. Chang, W. C. Cheng, Y. Y. Kuo, C. N. Liu, L. Y. Chen, and W. H. Cheng, “New scheme of a highly-reliable glass-based color wheel for next-generation laser light engine,” Opt. Mater. Express 7(3), 121–128 (2017).
[Crossref]

C. C. Tsai, W. C. Cheng, J. K. Chang, L. Y. Chen, J. H. Chen, Y. C. Hsu, and W. H. Cheng, “Ultra-high thermal-stable glass phosphor layer for phosphor-converted white light-emitting diodes,” IEEE J. Disp. Technol. 9(6), 427–432 (2013).
[Crossref]

Chen, M. H.

J. Wang, C. C. Tsai, W. C. Cheng, M. H. Chen, C. H. Chung, and W. H. Cheng, “High thermal stability of phosphor-converted white light-emitting diodes employing Ce:YAG-doped glass,” IEEE J. Sel. Top. Quantum Electron. 17(3), 741–746 (2011).
[Crossref]

Cheng, W. C.

Y. P. Chang, J. K. Chang, W. C. Cheng, Y. Y. Kuo, C. N. Liu, L. Y. Chen, and W. H. Cheng, “New scheme of a highly-reliable glass-based color wheel for next-generation laser light engine,” Opt. Mater. Express 7(3), 121–128 (2017).
[Crossref]

C. C. Tsai, W. C. Cheng, J. K. Chang, S. Y. Huang, J. S. Liou, G. H. Chen, Y. C. Huang, J. S. Wang, and W. H. Cheng, “Thermal-stability comparison of glass- and silicone-based high-power phosphor-converted white-light-emitting diodes under thermal aging,” IEEE Trans. Devices, Mater. Relig. 14(1), 1–6 (2014).

C. C. Tsai, W. C. Cheng, J. K. Chang, L. Y. Chen, J. H. Chen, Y. C. Hsu, and W. H. Cheng, “Ultra-high thermal-stable glass phosphor layer for phosphor-converted white light-emitting diodes,” IEEE J. Disp. Technol. 9(6), 427–432 (2013).
[Crossref]

J. Wang, C. C. Tsai, W. C. Cheng, M. H. Chen, C. H. Chung, and W. H. Cheng, “High thermal stability of phosphor-converted white light-emitting diodes employing Ce:YAG-doped glass,” IEEE J. Sel. Top. Quantum Electron. 17(3), 741–746 (2011).
[Crossref]

Cheng, W. H.

Y. P. Chang, J. K. Chang, W. C. Cheng, Y. Y. Kuo, C. N. Liu, L. Y. Chen, and W. H. Cheng, “New scheme of a highly-reliable glass-based color wheel for next-generation laser light engine,” Opt. Mater. Express 7(3), 121–128 (2017).
[Crossref]

C. C. Tsai, W. C. Cheng, J. K. Chang, S. Y. Huang, J. S. Liou, G. H. Chen, Y. C. Huang, J. S. Wang, and W. H. Cheng, “Thermal-stability comparison of glass- and silicone-based high-power phosphor-converted white-light-emitting diodes under thermal aging,” IEEE Trans. Devices, Mater. Relig. 14(1), 1–6 (2014).

C. C. Tsai, W. C. Cheng, J. K. Chang, L. Y. Chen, J. H. Chen, Y. C. Hsu, and W. H. Cheng, “Ultra-high thermal-stable glass phosphor layer for phosphor-converted white light-emitting diodes,” IEEE J. Disp. Technol. 9(6), 427–432 (2013).
[Crossref]

J. Wang, C. C. Tsai, W. C. Cheng, M. H. Chen, C. H. Chung, and W. H. Cheng, “High thermal stability of phosphor-converted white light-emitting diodes employing Ce:YAG-doped glass,” IEEE J. Sel. Top. Quantum Electron. 17(3), 741–746 (2011).
[Crossref]

Chung, C. H.

J. Wang, C. C. Tsai, W. C. Cheng, M. H. Chen, C. H. Chung, and W. H. Cheng, “High thermal stability of phosphor-converted white light-emitting diodes employing Ce:YAG-doped glass,” IEEE J. Sel. Top. Quantum Electron. 17(3), 741–746 (2011).
[Crossref]

DenBaars, S. P.

Farrell, R. M.

Fukunaga, H.

K. Yoshimura, K. Annen, H. Fukunaga, M. Harada, M. Izumi, K. Takahashi, T. Uchikoshi, R. J. Xie, and N. Hirosaki, “Optical properties of solid-state laser lighting devices using SiAl on phosphor−glass composite films as wavelength converters,” Jpn. J. Appl. Phys. 55(4), 042102 (2016).
[Crossref]

Garay, J. E.

A. T. Wieg, E. H. Penilla, C. L. Hardin, Y. Kodera, and J. E. Garay, “Broadband white light emission from Ce:AlN ceramics: High thermal conductivity down-converters for LED and laser-driven solid state lighting,” APL Mater. 4(12), 126105 (2016).
[Crossref]

George, A. F.

Harada, M.

K. Yoshimura, K. Annen, H. Fukunaga, M. Harada, M. Izumi, K. Takahashi, T. Uchikoshi, R. J. Xie, and N. Hirosaki, “Optical properties of solid-state laser lighting devices using SiAl on phosphor−glass composite films as wavelength converters,” Jpn. J. Appl. Phys. 55(4), 042102 (2016).
[Crossref]

Hardin, C. L.

A. T. Wieg, E. H. Penilla, C. L. Hardin, Y. Kodera, and J. E. Garay, “Broadband white light emission from Ce:AlN ceramics: High thermal conductivity down-converters for LED and laser-driven solid state lighting,” APL Mater. 4(12), 126105 (2016).
[Crossref]

Hirosaki, N.

L. Wang, R. J. Xie, T. Suehiro, T. Takeda, and N. Hirosaki, “Down-conversion nitride materials for solid State lighting: recent advances and perspectives,” Chem. Rev. 118(4), 1951–2009 (2018).
[Crossref] [PubMed]

K. Yoshimura, K. Annen, H. Fukunaga, M. Harada, M. Izumi, K. Takahashi, T. Uchikoshi, R. J. Xie, and N. Hirosaki, “Optical properties of solid-state laser lighting devices using SiAl on phosphor−glass composite films as wavelength converters,” Jpn. J. Appl. Phys. 55(4), 042102 (2016).
[Crossref]

Hsu, Y. C.

C. C. Tsai, W. C. Cheng, J. K. Chang, L. Y. Chen, J. H. Chen, Y. C. Hsu, and W. H. Cheng, “Ultra-high thermal-stable glass phosphor layer for phosphor-converted white light-emitting diodes,” IEEE J. Disp. Technol. 9(6), 427–432 (2013).
[Crossref]

Huang, S. Y.

C. C. Tsai, W. C. Cheng, J. K. Chang, S. Y. Huang, J. S. Liou, G. H. Chen, Y. C. Huang, J. S. Wang, and W. H. Cheng, “Thermal-stability comparison of glass- and silicone-based high-power phosphor-converted white-light-emitting diodes under thermal aging,” IEEE Trans. Devices, Mater. Relig. 14(1), 1–6 (2014).

Huang, Y. C.

C. C. Tsai, W. C. Cheng, J. K. Chang, S. Y. Huang, J. S. Liou, G. H. Chen, Y. C. Huang, J. S. Wang, and W. H. Cheng, “Thermal-stability comparison of glass- and silicone-based high-power phosphor-converted white-light-emitting diodes under thermal aging,” IEEE Trans. Devices, Mater. Relig. 14(1), 1–6 (2014).

Izumi, M.

K. Yoshimura, K. Annen, H. Fukunaga, M. Harada, M. Izumi, K. Takahashi, T. Uchikoshi, R. J. Xie, and N. Hirosaki, “Optical properties of solid-state laser lighting devices using SiAl on phosphor−glass composite films as wavelength converters,” Jpn. J. Appl. Phys. 55(4), 042102 (2016).
[Crossref]

Jadwisienczak, W. M.

Jeong, B. W.

Y. H. Song, E. K. Ji, B. W. Jeong, M. K. Jung, E. Y. Kim, and D. H. Yoon, “High power laser-driven ceramic phosphor plate for outstanding efficient white light conversion in application of automotive lighting,” Sci. Rep. 6(1), 31206 (2016).
[Crossref] [PubMed]

Ji, E. K.

Y. H. Song, E. K. Ji, B. W. Jeong, M. K. Jung, E. Y. Kim, and D. H. Yoon, “High power laser-driven ceramic phosphor plate for outstanding efficient white light conversion in application of automotive lighting,” Sci. Rep. 6(1), 31206 (2016).
[Crossref] [PubMed]

Jung, M. K.

Y. H. Song, E. K. Ji, B. W. Jeong, M. K. Jung, E. Y. Kim, and D. H. Yoon, “High power laser-driven ceramic phosphor plate for outstanding efficient white light conversion in application of automotive lighting,” Sci. Rep. 6(1), 31206 (2016).
[Crossref] [PubMed]

Kim, E. Y.

Y. H. Song, E. K. Ji, B. W. Jeong, M. K. Jung, E. Y. Kim, and D. H. Yoon, “High power laser-driven ceramic phosphor plate for outstanding efficient white light conversion in application of automotive lighting,” Sci. Rep. 6(1), 31206 (2016).
[Crossref] [PubMed]

Kodera, Y.

A. T. Wieg, E. H. Penilla, C. L. Hardin, Y. Kodera, and J. E. Garay, “Broadband white light emission from Ce:AlN ceramics: High thermal conductivity down-converters for LED and laser-driven solid state lighting,” APL Mater. 4(12), 126105 (2016).
[Crossref]

Kuo, Y. Y.

Y. P. Chang, J. K. Chang, W. C. Cheng, Y. Y. Kuo, C. N. Liu, L. Y. Chen, and W. H. Cheng, “New scheme of a highly-reliable glass-based color wheel for next-generation laser light engine,” Opt. Mater. Express 7(3), 121–128 (2017).
[Crossref]

Liou, J. S.

C. C. Tsai, W. C. Cheng, J. K. Chang, S. Y. Huang, J. S. Liou, G. H. Chen, Y. C. Huang, J. S. Wang, and W. H. Cheng, “Thermal-stability comparison of glass- and silicone-based high-power phosphor-converted white-light-emitting diodes under thermal aging,” IEEE Trans. Devices, Mater. Relig. 14(1), 1–6 (2014).

Liu, C. N.

Y. P. Chang, J. K. Chang, W. C. Cheng, Y. Y. Kuo, C. N. Liu, L. Y. Chen, and W. H. Cheng, “New scheme of a highly-reliable glass-based color wheel for next-generation laser light engine,” Opt. Mater. Express 7(3), 121–128 (2017).
[Crossref]

Mills, A.

A. Mills, “Solid state lighting-a world of expanding opportunities at LED 2002,” III–Vs Rev. 16(1), 30–33 (2003).
[Crossref]

Nakamura, S.

Penilla, E. H.

A. T. Wieg, E. H. Penilla, C. L. Hardin, Y. Kodera, and J. E. Garay, “Broadband white light emission from Ce:AlN ceramics: High thermal conductivity down-converters for LED and laser-driven solid state lighting,” APL Mater. 4(12), 126105 (2016).
[Crossref]

Pfaff, N.

Rahman, F.

Sizov, D. S.

J. J. Wierer, J. Y. Tsao, and D. S. Sizov, “Comparison between blue lasers and light-emitting diodes for future solid-state lighting,” Laser Photonics Rev. 7(6), 963–993 (2013).
[Crossref]

Song, Y. H.

Y. H. Song, E. K. Ji, B. W. Jeong, M. K. Jung, E. Y. Kim, and D. H. Yoon, “High power laser-driven ceramic phosphor plate for outstanding efficient white light conversion in application of automotive lighting,” Sci. Rep. 6(1), 31206 (2016).
[Crossref] [PubMed]

Speck, J. S.

Suehiro, T.

L. Wang, R. J. Xie, T. Suehiro, T. Takeda, and N. Hirosaki, “Down-conversion nitride materials for solid State lighting: recent advances and perspectives,” Chem. Rev. 118(4), 1951–2009 (2018).
[Crossref] [PubMed]

Takahashi, K.

K. Yoshimura, K. Annen, H. Fukunaga, M. Harada, M. Izumi, K. Takahashi, T. Uchikoshi, R. J. Xie, and N. Hirosaki, “Optical properties of solid-state laser lighting devices using SiAl on phosphor−glass composite films as wavelength converters,” Jpn. J. Appl. Phys. 55(4), 042102 (2016).
[Crossref]

Takeda, T.

L. Wang, R. J. Xie, T. Suehiro, T. Takeda, and N. Hirosaki, “Down-conversion nitride materials for solid State lighting: recent advances and perspectives,” Chem. Rev. 118(4), 1951–2009 (2018).
[Crossref] [PubMed]

Tsai, C. C.

C. C. Tsai, W. C. Cheng, J. K. Chang, S. Y. Huang, J. S. Liou, G. H. Chen, Y. C. Huang, J. S. Wang, and W. H. Cheng, “Thermal-stability comparison of glass- and silicone-based high-power phosphor-converted white-light-emitting diodes under thermal aging,” IEEE Trans. Devices, Mater. Relig. 14(1), 1–6 (2014).

C. C. Tsai, W. C. Cheng, J. K. Chang, L. Y. Chen, J. H. Chen, Y. C. Hsu, and W. H. Cheng, “Ultra-high thermal-stable glass phosphor layer for phosphor-converted white light-emitting diodes,” IEEE J. Disp. Technol. 9(6), 427–432 (2013).
[Crossref]

J. Wang, C. C. Tsai, W. C. Cheng, M. H. Chen, C. H. Chung, and W. H. Cheng, “High thermal stability of phosphor-converted white light-emitting diodes employing Ce:YAG-doped glass,” IEEE J. Sel. Top. Quantum Electron. 17(3), 741–746 (2011).
[Crossref]

Tsao, J. Y.

J. J. Wierer, J. Y. Tsao, and D. S. Sizov, “Comparison between blue lasers and light-emitting diodes for future solid-state lighting,” Laser Photonics Rev. 7(6), 963–993 (2013).
[Crossref]

Uchikoshi, T.

K. Yoshimura, K. Annen, H. Fukunaga, M. Harada, M. Izumi, K. Takahashi, T. Uchikoshi, R. J. Xie, and N. Hirosaki, “Optical properties of solid-state laser lighting devices using SiAl on phosphor−glass composite films as wavelength converters,” Jpn. J. Appl. Phys. 55(4), 042102 (2016).
[Crossref]

Ulrich, L.

L. Ulrich, “Whiter bright with lasers,” IEEE Spectr. 50(11), 36–56 (2013).
[Crossref]

Wang, J.

J. Wang, C. C. Tsai, W. C. Cheng, M. H. Chen, C. H. Chung, and W. H. Cheng, “High thermal stability of phosphor-converted white light-emitting diodes employing Ce:YAG-doped glass,” IEEE J. Sel. Top. Quantum Electron. 17(3), 741–746 (2011).
[Crossref]

Wang, J. S.

C. C. Tsai, W. C. Cheng, J. K. Chang, S. Y. Huang, J. S. Liou, G. H. Chen, Y. C. Huang, J. S. Wang, and W. H. Cheng, “Thermal-stability comparison of glass- and silicone-based high-power phosphor-converted white-light-emitting diodes under thermal aging,” IEEE Trans. Devices, Mater. Relig. 14(1), 1–6 (2014).

Wang, L.

L. Wang, R. J. Xie, T. Suehiro, T. Takeda, and N. Hirosaki, “Down-conversion nitride materials for solid State lighting: recent advances and perspectives,” Chem. Rev. 118(4), 1951–2009 (2018).
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Wieg, A. T.

A. T. Wieg, E. H. Penilla, C. L. Hardin, Y. Kodera, and J. E. Garay, “Broadband white light emission from Ce:AlN ceramics: High thermal conductivity down-converters for LED and laser-driven solid state lighting,” APL Mater. 4(12), 126105 (2016).
[Crossref]

Wierer, J. J.

J. J. Wierer, J. Y. Tsao, and D. S. Sizov, “Comparison between blue lasers and light-emitting diodes for future solid-state lighting,” Laser Photonics Rev. 7(6), 963–993 (2013).
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Xie, R. J.

L. Wang, R. J. Xie, T. Suehiro, T. Takeda, and N. Hirosaki, “Down-conversion nitride materials for solid State lighting: recent advances and perspectives,” Chem. Rev. 118(4), 1951–2009 (2018).
[Crossref] [PubMed]

K. Yoshimura, K. Annen, H. Fukunaga, M. Harada, M. Izumi, K. Takahashi, T. Uchikoshi, R. J. Xie, and N. Hirosaki, “Optical properties of solid-state laser lighting devices using SiAl on phosphor−glass composite films as wavelength converters,” Jpn. J. Appl. Phys. 55(4), 042102 (2016).
[Crossref]

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Y. H. Song, E. K. Ji, B. W. Jeong, M. K. Jung, E. Y. Kim, and D. H. Yoon, “High power laser-driven ceramic phosphor plate for outstanding efficient white light conversion in application of automotive lighting,” Sci. Rep. 6(1), 31206 (2016).
[Crossref] [PubMed]

Yoshimura, K.

K. Yoshimura, K. Annen, H. Fukunaga, M. Harada, M. Izumi, K. Takahashi, T. Uchikoshi, R. J. Xie, and N. Hirosaki, “Optical properties of solid-state laser lighting devices using SiAl on phosphor−glass composite films as wavelength converters,” Jpn. J. Appl. Phys. 55(4), 042102 (2016).
[Crossref]

APL Mater. (1)

A. T. Wieg, E. H. Penilla, C. L. Hardin, Y. Kodera, and J. E. Garay, “Broadband white light emission from Ce:AlN ceramics: High thermal conductivity down-converters for LED and laser-driven solid state lighting,” APL Mater. 4(12), 126105 (2016).
[Crossref]

Appl. Opt. (1)

Chem. Rev. (1)

L. Wang, R. J. Xie, T. Suehiro, T. Takeda, and N. Hirosaki, “Down-conversion nitride materials for solid State lighting: recent advances and perspectives,” Chem. Rev. 118(4), 1951–2009 (2018).
[Crossref] [PubMed]

IEEE J. Disp. Technol. (1)

C. C. Tsai, W. C. Cheng, J. K. Chang, L. Y. Chen, J. H. Chen, Y. C. Hsu, and W. H. Cheng, “Ultra-high thermal-stable glass phosphor layer for phosphor-converted white light-emitting diodes,” IEEE J. Disp. Technol. 9(6), 427–432 (2013).
[Crossref]

IEEE J. Sel. Top. Quantum Electron. (1)

J. Wang, C. C. Tsai, W. C. Cheng, M. H. Chen, C. H. Chung, and W. H. Cheng, “High thermal stability of phosphor-converted white light-emitting diodes employing Ce:YAG-doped glass,” IEEE J. Sel. Top. Quantum Electron. 17(3), 741–746 (2011).
[Crossref]

IEEE Spectr. (1)

L. Ulrich, “Whiter bright with lasers,” IEEE Spectr. 50(11), 36–56 (2013).
[Crossref]

IEEE Trans. Devices, Mater. Relig. (1)

C. C. Tsai, W. C. Cheng, J. K. Chang, S. Y. Huang, J. S. Liou, G. H. Chen, Y. C. Huang, J. S. Wang, and W. H. Cheng, “Thermal-stability comparison of glass- and silicone-based high-power phosphor-converted white-light-emitting diodes under thermal aging,” IEEE Trans. Devices, Mater. Relig. 14(1), 1–6 (2014).

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[Crossref]

Jpn. J. Appl. Phys. (1)

K. Yoshimura, K. Annen, H. Fukunaga, M. Harada, M. Izumi, K. Takahashi, T. Uchikoshi, R. J. Xie, and N. Hirosaki, “Optical properties of solid-state laser lighting devices using SiAl on phosphor−glass composite films as wavelength converters,” Jpn. J. Appl. Phys. 55(4), 042102 (2016).
[Crossref]

Laser Photonics Rev. (1)

J. J. Wierer, J. Y. Tsao, and D. S. Sizov, “Comparison between blue lasers and light-emitting diodes for future solid-state lighting,” Laser Photonics Rev. 7(6), 963–993 (2013).
[Crossref]

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Opt. Express (1)

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Y. P. Chang, J. K. Chang, W. C. Cheng, Y. Y. Kuo, C. N. Liu, L. Y. Chen, and W. H. Cheng, “New scheme of a highly-reliable glass-based color wheel for next-generation laser light engine,” Opt. Mater. Express 7(3), 121–128 (2017).
[Crossref]

Sci. Rep. (1)

Y. H. Song, E. K. Ji, B. W. Jeong, M. K. Jung, E. Y. Kim, and D. H. Yoon, “High power laser-driven ceramic phosphor plate for outstanding efficient white light conversion in application of automotive lighting,” Sci. Rep. 6(1), 31206 (2016).
[Crossref] [PubMed]

Other (1)

Private communication, A significant reduction of bubbles in glass-based phosphor employing densification process with glass powders under ball mil, Wenjea J. Tseng, Department of Materials Science and Engineering, National Chung Hsing University, Taichung, Taiwan (2018).

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Figures (6)

Fig. 1
Fig. 1 The CeYDG and CeYDS as a function of aging temperature for 1008 hours of (a) the lumen loss, (b)the chromaticity shift, and (c) the quantum efficiency.
Fig. 2
Fig. 2 Schematic diagram of LHM.
Fig. 3
Fig. 3 Schematic of aspherical lens with variable surfaces.
Fig. 4
Fig. 4 (a) 3D schematic of aspherical lens. (b) Ray tracing diagram. The blue rectangle the white light monitor. (c) 2D intensity distribution pattern. (d) 1D crosscut of intensity distribution as indicated by the horizontal line in (c).
Fig. 5
Fig. 5 Schematic design of 5 × 1 LHM array.
Fig. 6
Fig. 6 LHM with 5 × 1 blue laser array.

Tables (4)

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Table 1 Comparison of silicone-, ceramic-, single crystal-, and glass-based phosphor-converter layers

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Table 2 Thermal comparison of silicone- and glass-based phosphor-converter layers

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Table 3 Safety accreditation of high beam (ECE R112)

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Table 4 The simulation and measurement of LHM high beam

Equations (1)

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Z= c r 2 1+ 1(1+k) c 2 r 2

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