A specialized photometer used to measure simultaneously the light at each point of an extended object such as a galaxy or nebula; also known as an imaging photometer. Most area photometers rely on CCD detectors or infrared arrays.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。