Last Updated
：2025/11/21
folded optics
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An optical system in which prisms and/or mirrors are used to reduce the overall physical length of the system.
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folded optics
The compact binoculars rely on folded optics to keep the body short while maintaining a long focal length.
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The compact binoculars rely on folded optics to keep the body short while maintaining a long focal length.
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