A dazzling phenomenon of CW laser on linear CCD camera |
| |
Authors: | Zhen Zhang Xiang-ai Cheng Tian Jiang Zong-fu Jiang |
| |
Institution: | 1. Northwest Institute of nuclear Technology, Xi’an 710024, China;2. Northwest Institute of nuclear Technology State Key Laboratory of Laser Interaction with Matter, Xi’an 710024, China;3. College of Optoelectronic Science and Engineering, National University of Defense Technology, Chang Sha 410073, China |
| |
Abstract: | A laser dazzling experiment is performed on a linear CCD camera, in which a new dazzling phenomenon is found. It is that a laser beam has caused three spots in the output video of the CCD. The three spots lie in the line along which the linear camera is scanning. The middle spot is the image of laser beam that can be anticipated, but the two sideward spots is a new phenomenon that hasn’t reported in other open literatures. We testify that it isn’t laser high-order mode, diffraction and multiple reflections in the optical path outside the camera that cause the three spots. In the process that linear CCD camera scans the laser beam, the multiple reflections between the lens and CCD image sensor are analyzed. The results indicate that multiple reflections inside the camera can induce the sideward spots. Three basic factors that caused sideward spots have been summed up as follows: the scanning mode of the linear camera, the high brightness of laser, and structure of lens and CCD image sensor. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|