光学定理表明了积分散射截面与散射振幅f(0)之间的关系。光学定理也可以视为入射波与散射波互相干涉的结果。
度规光学中的聚焦定理被导出。
严格、详细地证明了弯曲时空几何光学中的聚焦定理。
The focusing theorem of geometric optics in curved space-time be proved strictly and in detail.
此外，光学系统中像的辐射量度定理用来建立虚拟探测器平面与CCD相机平面之间的能量映射关系。
In addition, the radiance theorem is also adopted to establish the energy relationship between the virtual detector and the CCD camera.
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