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  • What is a scanning field mirror? What are its functions and applications?

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    Scanning field mirror, also often called F-Theta field mirror or f-θ field mirror, is a specia...

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  • What is the relationship between the central wavelength and bandwidth of the filter?

    What is th...

    The connection of the bandwidth of the filter is often used in bandpass filters (divided into narrow...

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  • Refractive index and expression symbols in optics

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    Refractive index is an important concept in optics, which describes the characteristics of the chang...

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