Abstract

We present experimental results on a low-cost light source that utilizes commercially available 405-nm/445-nm lasers to drive phosphor-based optical cavities generating speckle-free red, green, and blue (RGB) light at selected etendue and power values. By combining more 405/445-nm laser beams to drive the optical cavities, enough RGB light can be generated for the most demanding etendue-limited applications such as automotive headlights, biomedical devices and projection systems. We report efficacies of 17, 18, and 14 lm/W for the red (610 nm), green (530 nm), and white light, respectively, at an etendue of 27 mm$^{2}$.sr.

© 2014 IEEE

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  1. T. L. Dawson, "Development of efficient and durable sources of white light," Coloration Technol. 126, 1-10 (2010).
  2. M. S. Brennesholtz, "New-technology light sources for projection displays," SID Symp. Dig. Tech. Papers (2008) pp. 858-861.
  3. U. Weichmann, "Light sources for small-etendue applications: A comparison of xenon and UHP lamps," Proc. SPIE (2005).
  4. K. A. Denault, "Efficient and stable laser-driven white lighting," AIP Advances 3, (2013) Art. ID 072107.
  5. U. Steegmüller, "Visible lasers for mobile projection," Proc. SPIE (2008).
  6. K. Li, "LED array with recycling for high-power projector applications," SID Int. Symp. Dig. Tech. Papers (2011) pp. 323-325.
  7. B. D. Silverstein, "A laser-based digital cinema projector," SID Int. Symp. Dig. Tech. Papers (2011) pp. 326-329.
  8. G. Ouyang, K. Li, "Dualparaboloid reflector illumination system for digital cinema," SID Int. Symp. Dig. Tech. Papers (2011) pp. 320-322.
  9. K. Beeson, "LED-based light-recycling light sources for projection displays," SID Int. Symp. Dig. Tech. Papers (2006) pp. 1823-1826.
  10. P. Janssens, K. Malfait, "Future prospects of high-end laser projectors," Proc. SPIE (2009).
  11. K. V. Chellappan, "Laser-based displays: A review," Appl. Opt. 49, F79-F98 (2010).
  12. M. Jansen, "Visible laser sources for projection displays," Proc. SPIE (2007).
  13. D. Lee, "OPO-based compact laser projection display," Proc. SPIE (2001).
  14. K. Morimoto, "A 30 W pure blue emission with NUV laser-diode-pumped phosphor for high-brightness projectors," SID Int. Symp. Dig. Tech. Papers (2013) pp. 832-883.
  15. F. Romeo, "Casio projectors with hybrid LED/laser/phosphor illumination," SID Int. Symp. Dig. Tech. Papers (2010) pp. 979-981.
  16. N. Abu-Ageel, Illumination systems utilizing wavelength conversion materials and light recycling U.S. Patent 8 096 668 (2012).

2013 (1)

K. A. Denault, "Efficient and stable laser-driven white lighting," AIP Advances 3, (2013) Art. ID 072107.

2010 (2)

K. V. Chellappan, "Laser-based displays: A review," Appl. Opt. 49, F79-F98 (2010).

T. L. Dawson, "Development of efficient and durable sources of white light," Coloration Technol. 126, 1-10 (2010).

AIP Advances (1)

K. A. Denault, "Efficient and stable laser-driven white lighting," AIP Advances 3, (2013) Art. ID 072107.

Appl. Opt. (1)

K. V. Chellappan, "Laser-based displays: A review," Appl. Opt. 49, F79-F98 (2010).

Coloration Technol. (1)

T. L. Dawson, "Development of efficient and durable sources of white light," Coloration Technol. 126, 1-10 (2010).

Other (13)

M. S. Brennesholtz, "New-technology light sources for projection displays," SID Symp. Dig. Tech. Papers (2008) pp. 858-861.

U. Weichmann, "Light sources for small-etendue applications: A comparison of xenon and UHP lamps," Proc. SPIE (2005).

M. Jansen, "Visible laser sources for projection displays," Proc. SPIE (2007).

D. Lee, "OPO-based compact laser projection display," Proc. SPIE (2001).

K. Morimoto, "A 30 W pure blue emission with NUV laser-diode-pumped phosphor for high-brightness projectors," SID Int. Symp. Dig. Tech. Papers (2013) pp. 832-883.

F. Romeo, "Casio projectors with hybrid LED/laser/phosphor illumination," SID Int. Symp. Dig. Tech. Papers (2010) pp. 979-981.

N. Abu-Ageel, Illumination systems utilizing wavelength conversion materials and light recycling U.S. Patent 8 096 668 (2012).

U. Steegmüller, "Visible lasers for mobile projection," Proc. SPIE (2008).

K. Li, "LED array with recycling for high-power projector applications," SID Int. Symp. Dig. Tech. Papers (2011) pp. 323-325.

B. D. Silverstein, "A laser-based digital cinema projector," SID Int. Symp. Dig. Tech. Papers (2011) pp. 326-329.

G. Ouyang, K. Li, "Dualparaboloid reflector illumination system for digital cinema," SID Int. Symp. Dig. Tech. Papers (2011) pp. 320-322.

K. Beeson, "LED-based light-recycling light sources for projection displays," SID Int. Symp. Dig. Tech. Papers (2006) pp. 1823-1826.

P. Janssens, K. Malfait, "Future prospects of high-end laser projectors," Proc. SPIE (2009).

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