What is the difference between a narrowband filter and a bandpass filter?

There may be a lot of things that are not very familiar to the optical industry. It should be very curious what is the difference between narrow-band filters and band-pass filters? So everyone will have some questions. What is the difference between the two? Then the next small series of Feiyuda Optoelectronics will come to you to solve!

Bandpass filters allow optical signals to pass through in certain bands, while optical signals that are off-band from this band are blocked. The passbands of bandpass filters are relatively wide, generally half. The bandwidth is above 40nm! The narrowband filter is separated in the bandpass filter and belongs to the bandpass filter. Its definition is the same as the bandpass filter. Optical signals are allowed to pass through in certain bands, while optical signals off both sides of this band are blocked, but narrowband filters are relatively narrow.

The narrow-band filter is mainly characterized by the technique of all-dielectric hard-film coating and the principle of dielectric interference. On the basis of highlighting the characteristics of the narrow-band filter, the optical performance is independent of the thickness of the substrate, and the narrow-band filter is more convenient for imaging with built-in instruments. Inside the system. The optical performance is improved and effectively applied, and a special optical material substrate is used to solve the problems that the absorption type synthetic glass is easy to mold and the optical performance is unstable in the conventional sense, and the product is produced according to the customer's index requirement.

If you still have questions about the filter, you can go to our Feiyuda Optoelectronics website to find out, or you can choose to contact Liu Sheng 13698961761, QQ.

What is the difference between a narrowband filter and a bandpass filter?

What is the difference between a narrowband filter and a bandpass filter?

What is the difference between a narrowband filter and a bandpass filter?

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