热散焦效应；
It's well known that both thermal self-defocusing effect and reverse saturated absorption can lead to optical limiting.
众所周知，热自散焦效应和反饱和吸收效应都能导致光限幅。
This approach can not only eliminate defocusing effect of optical system caused by temperature change, but also make the aerial digital camera be smaller and less weighty.
这种方法既能有效减小光学系统在不同温度下像面的热离焦，又有利于航空相机小型化、轻量化设计。
This approach can not only eliminate defocusing effect of optical system caused by temperature change, but also make the aerial digital camera be smaller and less weighty.
这种方法既能有效减小光学系统在不同温度下像面的热离焦，又有利于航空相机小型化、轻量化设计。
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