| 摘要 |
A monitoring apparatus comprising a lens structure includes lenses and a reflector element which reflects the light rays passing through these lenses, thereby changing the first optical axis along which the light rays pass before being reflected into the second optical axis and which is further equipped with a camera element for taking the picture image of the object body which has been reflected from the reflector element and a drive for rotating the lens structure, with this second optical axis extending along its center, to enable monitoring of a wide field of vision.
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