In this paper we present a new technique for accomplishing the Fourier transformation of interferograms via total optical means.

本文提出了用光学处理器完成干涉图的傅里叶变换，从而实现全光学的傅里叶分光光度计的新技术。

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The detection system (100) also comprises optical means (112) adapted for guiding said excitation radiation aside the at least one detector element (106).

所述检测系统(100)还包括适于将所述激发辐射引导到所述至少一个检测器元件(106)的旁边的光学装置(112)。

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That means when the two stars finally get around to merging, they could be far away from the galaxy of their birth — good news, as it happens, for optical confirmation.

这意味着当双星最后融合时，它们将离它们诞生的星系很远——如果这真的发生了，引力波就能在光学上得到确认，这真是个好消息。

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To keep the price down, that often means their optical performance is compromised and the choice of focal lengths limited.

ECONOMIST: A die-hard analog photographer goes digital

Optical scanning systems have a 98% accuracy rate, which means an unacceptable 40 errors per page.

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This means that someone bought a physical copy, cut the spine, scanned the pages and used optical character recognition (OCR) to get a first draft.

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