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Aspherical lenses do not have a simple spherical surface; instead, they have a rotationally symmetric, smooth,...
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The anti-reflective coatings (also known as AR coatings) is to reduce or eliminate the reflection of light on ...
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The dome at the upper end of a all sky camera include protecting the lens, collecting light, and preventing st...
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The optical alignment cube is an important tool used for the precise measurement and calibration of optic...