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Simple Understanding of Infrared Optical Filter Glass

Jan 04,2023

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Divided from the substrate material, it can be quickly divided into colored glass Infrared Optical Filter Glass, optical glass coating Infrared Optical Filter Glass, and Infrared Optical Filter Glass made of acrylic plastic. This is not limited. If the infrared band reaches the mid-to-far infrared, the material is also There is quartz glass and so on.

According to the optical performance of Infrared Optical Filter Glass, it can be divided into band-pass Infrared Optical Filter Glass and long-wave pass Infrared Optical Filter Glass.

Infrared Optical Filter Glass

Among them, the long-wave pass type is divided into the following types:

1. Made of colored glass, usually black. It absorbs visible light and allows infrared light to pass through, making it suitable for infrared imaging.

2. The second type is also called optical cold mirror, which is made of vacuum coating on optical glass. It reflects visible light and allows infrared light to pass through. It looks silver in appearance, like a mirror.

3. The Infrared Optical Filter Glass made of special plastic also has a black appearance.

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