| 摘要 |
The night vision system has multiple electroluminescent infra-red diodes (6) as the light source. The electroluminescent diodes operate with bandwidths between 800nm and 900nm. A cover (9) over the diodes has the inside face shaped with individual curved segments, one in front of each diode, to concentrate the infra-red light from each electroluminescent diode. The diodes are standard diodes of 5mm diameter. The diodes can be formed on a single substrate, providing an array of diodes on a single substrate. A CCD camera is fitted to the vehicle to gather the scene illuminated by the array of diodes. The camera has a filter with its pass band corresponding to the wavelength of the diodes. The diodes and the camera can operate in synchronised impulse mode. |
