Abstract
Phosphor coating is one of the key steps in high-power LED packaging processes, among which the design of phosphor droplet jetting actuator is the pivotal technology. In this paper, the forming process of the phosphor droplets will be described, and a piezoelectric droplet printing actuator model about the phosphor fluid movement in the nozzle and the pressure cabin is used to define two criterions for producing phosphor droplets. These criterions can be used to design the piezoelectric actuator, the cabin structure and to select the piezoelectric actuator material. And all these developed models will help to understand the phosphor drop formation process and can be applied in phosphor jetting actuator designs.
Keywords
- High-power LED
- phosphor coating
- piezoelectric printing actuator
- phosphor droplet
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© 2012 Springer-Verlag Berlin Heidelberg
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Guo, Q., Hu, Y., Li, Z., Ma, G. (2012). Research of Piezoelectric Printing Actuator for High-Power White LED Phosphor Coating. In: Su, CY., Rakheja, S., Liu, H. (eds) Intelligent Robotics and Applications. ICIRA 2012. Lecture Notes in Computer Science(), vol 7507. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-33515-0_12
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DOI: https://doi.org/10.1007/978-3-642-33515-0_12
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-33514-3
Online ISBN: 978-3-642-33515-0
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