Aspherical lenses, which have nonspherical curvature, are inserted between the usual spherical lenses so light is focused uniformly on all pixels, improving sharpness.
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释义
通常把镜片曲率不是球形的非球面镜片,置于球面镜片之间以调整光线,让焦点落在像素上,用来改善影像清晰度。
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