The 26th International Display Workshops (IDW '19)

Presentation information

Oral Presentation

[PRJ2] Optical Components

Thu. Nov 28, 2019 9:00 AM - 10:20 AM Room 108 (1F)

Chair: Hidekazu Hatanaka (USHIO)
Co-Chair: Juiwei Pan (Chiao Tung Univ.)

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))

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

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.