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Cut Off Filter: Infrared cut filter is the use of precision optical coating technology on optical substrate plating alternately high and low refractive index of optical film, achieve high visible light area (400-630 ...

Double Concave Lens: A double concave lens/double concave mirror has a negative focal length, thereby causing collimated incident light to diverge. The double concave lens/mirror has an equal radius of curvature on both ...

Dome with Flange: Ecoptik (also known as BRD Optical) can provide the hemisphere, not only a glass dome but also an dome flange is widely used with all kinds of cameras such as CCTV, ROVs, etc. The flanges are easier ...

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