Share Email Print
cover

Proceedings Paper

Thermoelectric infrared imager and automotive applications
Author(s): Masaki Hirota; Fuminori Satou; Masanori Saito; Youichi Kishi; Yasushi Nakajima; Makato Uchiyama
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

This paper describes a newly developed thermoelectric infrared imager having a 48 X 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 X 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 x 190 μm, and consists of six pairs of thermocouples and an Au-black absorber that is precisely patterned by low-pressure evaporation and lift-off 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.

Paper Details

Date Published: 10 October 2001
PDF: 10 pages
Proc. SPIE 4369, Infrared Technology and Applications XXVII, (10 October 2001); doi: 10.1117/12.445299
Show Author Affiliations
Masaki Hirota, Nissan Motor Co., Ltd. (Japan)
Fuminori Satou, Nissan Motor Co., Ltd. (Japan)
Masanori Saito, Nissan Motor Co., Ltd. (Japan)
Youichi Kishi, Nissan Motor Co., Ltd. (Japan)
Yasushi Nakajima, Nissan Motor Co., Ltd. (Japan)
Makato Uchiyama, Nissan Motor Co., Ltd. (Japan)


Published in SPIE Proceedings Vol. 4369:
Infrared Technology and Applications XXVII
Bjorn F. Andresen; Gabor F. Fulop; Marija Strojnik, Editor(s)

© SPIE. Terms of Use
Back to Top