Thermoelectric infrared imager and automotive applications

Masaki Hirota, Fuminori Satou, Masanori Saito, Youichi Kishi, Yasushi Nakajima, Makoto Uchiyama

研究成果: Contribution to journalConference article査読

15 被引用数 (Scopus)

抄録

This paper describes a newly developed thermoelectric infrared imager having a 48 × 32 element thermoelectric focal plane array (FPA) and an experimental vehicle featuring a blind spot pedestrian warning system, which employs four infrared imagers. The imager measures 100 mm in width, 60 mm in height and 80 mm in depth, weighs 400 g, and has an overall field of view (FOV) of 40 deg × 20 deg. The power consumption of the imager is 3 W. The pedestrian detection program is stored in a CPU chip on a printed circuit board (PCB). The FPA provides high responsivity of 2,100 V/W, a time constant of 25 msec, and a low cost potential. Each element has external dimensions of 190 μm × 190 μm, and consists of six pairs of thermocouples and an Au-black absorber that is precisely patterned by low-pressure evaporation and lift-of technologies. The experimental vehicle is called the Nissan ASV-2 (Advanced Safety Vehicle-2), which incorporates a wide range of integrated technologies aimed at reducing traffic accidents. The blind spot pedestrian warning system alerts the driver to the presence of a pedestrian in a blind spot by detecting the infrared radiation emitted from the person's body. This system also prevents the vehicle from moving in the direction of the pedestrian.

本文言語英語
ページ(範囲)312-321
ページ数10
ジャーナルProceedings of SPIE - The International Society for Optical Engineering
4369
DOI
出版ステータス出版済み - 12 1 2001
外部発表はい
イベントInfrared Technology and Applications XXVII - Orlando, FL, 米国
継続期間: 4 16 20014 20 2001

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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