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SAE transactions | 2004

Highly Reliable High Power Diode Laser for Laser Radar Application

Kinya Atsumi; Katsunori Abe; Hisaya Kato; Katsunori Michiyama

In 1997, we have applied laser technology to the worlds first practical adaptive cruise control (ACC) system. The ACC system is based on 2-dimensional scanning laser-radar-sensor technology that is supported by highly reliable high power diode laser. Now, we have developed 34W output power multiple-quantum-well (MQW) diode laser. The power of 870nm near IR diode laser is twice as high as conventional one, thus it meets the strong needs for robust detection of the reflective laser beams from the moving vehicle ahead. Furthermore, Au-Sn-Ni a new alloy solder has been employed to sustain high degree of vibration and thermal shock to raise reliability. The acceleration life-tests at high temperature pulsed operation demonstrate the high reliability of developed 34W high power diode laser.


Archive | 1997

Photoelectric sensor circuit comprising an auxiliary photodiode and a current mirror circuit

Katsunori Michiyama; Keiji Horiba


Archive | 2007

Raindrop sensor and wiper controller having the same

Akira Utida; Masayuki Imanishi; Katsunori Michiyama; Atsushi Yamamoto


Archive | 2006

On-vehicle device for detecting front environment of vehicle and lighting equipment for vehicle

Katsuyuki Imanishi; Katsunori Michiyama; Akira Uchida; Atsushi Yamamoto; 勝之 今西; 明 内田; 敦司 山本; 勝教 道山


Archive | 2007

Vehicular front environment detection apparatus and vehicular front lighting apparatus

Akira Utida; Masayuki Imanishi; Katsunori Michiyama; Atsushi Yamamoto


Archive | 2007

Raindrop sensor for detecting rain on a vehicle windshield including an image sensor and processor for performing a frequency analysis of an image and wiper controller having the same

Akira Utida; Masayuki Imanishi; Katsunori Michiyama; Atsushi Yamamoto


Archive | 2007

Illumination control device for vehicle

Katsunori Michiyama; Atsushi Yamamoto


Archive | 2006

RAINDROP DETECTOR AND WIPER CONTROL DEVICE

Katsuyuki Imanishi; Katsunori Michiyama; Akira Uchida; Atsushi Yamamoto; 勝之 今西; 明 内田; 敦司 山本; 勝教 道山


Archive | 2007

Lighting control system for control dependent on weather condition

Katsunori Michiyama


Archive | 2007

Vehicle front surrounding area detecting device, has imaging unit for imaging vehicle front view and light detecting device for detecting brightness of field, where field detecting device is provided for detecting another vehicle in field

Masayuki Nishio Imanishi; Katsunori Michiyama; Akira Utida; Atsushi Yamamoto

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