| 摘要 |
PURPOSE: A lens assembly of a multi-finder structure is provided to simply implement a multi-lane screen by changing a lens unit of the existing closed circuit system only. CONSTITUTION: A lens assembly of a multi-finder structure comprises a zoom-in structure, a movable fixing pin(21), a black tube, and a concave lens part. The zoom-in structure has an independent zoom-in function in order to be controlled in any angle and location and an internal structure corresponding to the required number of lanes. The movable fixing pin is controlled in angle and position so as to make a convex lens variable. In order to secure the accuracy of an image, the image is delivered through the black tube to the concave lens part with an incident angle controlled so that the image reflected on a camera tube is split. |
