This conference presentation was prepared for the Unconventional Imaging and Adaptive Optics 2022 conference at SPIE Optical Engineering + Applications, 2022.
A new scheme of advanced driving beam (ADB) module employing ultra-reliable Ce: YAG-based single crystal phosphor (SCP) for use in autonomous vehicles is demonstrated. The Ce: YAG-based SCP layers fabricated by high-temperature of 1500°C exhibits excellent thermal stability. The ADB module consists of a Nichia blue LED with silicone-based phosphor, a digit mirror device (DMD), a projection lens, and two Nichia laser diodes with a Ce: YAG-based SCP layer. The ADB pattern is measured to be 88,436 luminous intensity at 0°, 69,393 cd at ± 2.5°, and 42,942 cd at ± 5°, which are well satisfied the ECE R112 class B regulation. The proposed high-performance ADB module with ultra-reliable Ce: YAG-based SCP layer is favorable as one of the promising ADB module candidates for use in the next-generation automobile headlight applications.
In this study, we propose and demonstrate a reflex optical phased array (OPA) chip, represents the most advanced optical scanning component of the third-generation LiDAR, and it has competitive advantages. The result showed the two-dimensional control of free-space optical fields at a wavelength of 1,550 nm at a 100 kHz modulation speed, which used dielectric thin film of SiN with an electro-optic response, realizing programmable space-variant control of optical wavefronts in a 32 × 4 pixel array at high speed. The 2D beam steering around a 30° × 2.5° field of view with the beam widths of 1.0° × 0.6°. We will provide custom solid-state LiDARs to clients, and these LiDARs will be more cost-effective than the commercial LiDAR products and will become more receptive by the autonomous vehicle market.
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