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Industry Information
Industry Information
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Negative meniscus lens is a type of meniscus lens, also known as negative focal length meniscus lens. Its shape is similar to convex-concave lens, but the center of the negative meniscus lens is thinner than the periphery, while the center of the...
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At present, in China's large-scale surveillance camera project areas, natural conditions such as rain, steam, haze and other natural conditions easily lead to ambiguity in monitoring, and even in severe cases, there is only a white mist. The fog...
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