A band-pass filter is a device that allows waves of a specific frequency band to pass while shielding other frequency bands. For example, the RLC oscillator circuit is an analog bandpass filter. A...
Optical lenses are divided into spherical lenses and cylindrical lenses. The curved surface of the spherical lens is a part of the spherical surface, and is divided into a convex spherical lens or a...
A band-pass filter is a device that allows waves in a specific frequency band to pass through while shielding other frequency bands. For example, the RLC tank is an analog bandpass filter. A...
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