International Display Workshops General Incorporated Association

Proceedings of the International Display Workshops Volume 26 (IDW '19)

Proceedings of the International Display Workshops Volume 26 (IDW '19)

Nov 27, 2019 - Nov 29, 2019
Sapporo Convention Center

10:00 AM - 10:20 AM

[PRJ2-4] High Power Red Laser Diode for Projector Light Source

*Masato Hagimoto1, Shintaro Miyamoto1, Yuki Kimura1, Haruki Fukai1, Manabu Hashizume1, Satoshi Kawanaka1 (1. USHIO OPTO SEMICONDUCTORS, INC. (Japan))

red laser, laser projector, speckle reduction, wall plug efficiency, tensile strain

https://doi.org/10.36463/idw.2019.1283

We developed 638nm and 642nm red laser diodes with 3.5W pulse / 2.4W CW operation. The 3.5W pulsed operation and wall plug efficiency of 43% are the world’s highest in 638nm to the best of our knowledge. The lineups of multiple wavelengths are ideal as red light sources for projector.