On the basis of Fraunhofer diffraction theory, the diffraction patterns of a Varied Line-space (VLS) grating were obtained for incidence beam in parallel and uniform.

基于夫琅禾费衍射理论，推导了平行光入射变栅距光栅后衍射光强的角度分布。

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GoalRef has been developed by German research institute Fraunhofer and involves using magnetic strips inside the ball to detect whether or not it has crossed the goal line.

CNN: FIFA awards goal-line technology licenses