| 摘要 |
PURPOSE: A method for displaying rectangular or circular lines on a CCTV monitor is provided to be capable of being applied to a field required to accurate watch such as a sports field by adding a protection box having a transparent plate on which lines are represented with constant gaps. CONSTITUTION: First, a transparent plate(4) of a CCTV camera protection box(1) is slidably inserted into a front part(7) of a camera lens(6) and then is fixed by screws. In this structure, a front part of a wire of the CCTV camera connected to a CCTV monitor(3) is made of flexible material so that the position of it can be easily changed. Further, the motion of a person and an angle of a sport article moving in front of the monitor(3) can be accurately watched using lines displayed on the monitor(3).
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