International Display Workshops General Incorporated Association

4:10 PM - 6:10 PM

[PRJp1-1] Etendue Preserving Stationary Phosphor Plate with Rotating Optics for High-Power Projection Applications

*Kenneth Li1 (1. Optonomous Technologies Inc.(United States of America))

laser, phosphor, projection, stationary, high-power

https://doi.org/10.36463/idw.2020.0708

With the advancement of blue laser developments at low cost, laser diodes and laser diode arrays are getting popular in various light system from low power to very high power. This paper presents a stationary phosphor system in which the phosphor plate is not in motion and can be attached to heat sinks for efficient removal of heat at high power operations, which cannot be achieve easily when the phosphor material is coated onto a rotating wheel. The highest power density, limited by the available laser source, of over 54 W per sq. mm has been achieved and is expected to increase in the near future with higher power laser sources, development of homogenizing and diffusing optics at the input, and micro and photonic structures at the output surfaces.