| 摘要 |
An alignment device for the focal length at the rear of the lens of a camera for industrial television is disclosed, and particularly an alignment device for the focal length at the rear of the lens which is capable of aligning the focal length at the rear of the lens more comfortably when a large number of lenses, each of which has a correspondingly different focal length, is mounted interchangeably on a camera for industrial television. The alignment device for the focal length at the rear of the lens in a camera for CCTV comprises an alignment rod, both ends of which are supported rotatably on the body of the camera in a longitudinal direction in parallel with the optical axis of the lens, and along which an outside thread section is formed in the longitudinal direction of the circumferential surface, and a CCD holder in which an internal thread section, the position of which can be moved along a longitudinal direction of the alignment rod, and a CCT carrier for carrying the CCT are constructed of one piece, which provides for ease of operation and correct alignment of the focal length at the rear of the lens.
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