镜头焦距测试卡(20扇形星)简介

　　镜头焦距测试卡(20扇形星)TE202专为调整相机镜头和检查焦距而设计

　　Lens focal length test card (20 fan star) profile

　　Lens focal length test card (20 fan stars) TE202 designed to adjust the camera lens and check the focal length and design

　镜头焦距测试卡(20扇形星)使用帮助

　　借助低传输滤波器和低电平照明，确保相机不会在光圈处于打开位置时过度调制。

　　a)光学对焦：以最大焦距调整变焦镜头的对焦。

　　b)后焦距(透镜)：通过用调节螺丝机械调节透镜，并通过a)优化，以最短焦距调整焦距。

　　c)后焦距(摄像管)：如果焦距在最大和最短焦距之间从通道到通道变化，则必须在光轴上机械地调整各个摄像管。

　　Lens focal length test card (20 fan star) use help

　　With low transmission filters and low level lighting, make sure that the camera does not over-modulate when the iris is in the open position.

　　A) Optical focus: Adjusts the focus of the zoom lens with the maximum focus.

　　B) Back focal length (lens): Adjust the focus with the shortest focus by adjusting the lens mechanically with the adjustment screw and by a) optimization.

　　C) Back focus (camera tube): If the focal length changes from channel to channel between the maximum and shortest focal lengths, the individual camera tubes must be mechanically adjusted on the optical axis.

   　1.选择白色通道。将光学焦点设置在最大焦距。使用最短的焦距和发散聚焦调整W-通道中的摄像管，直到实现最佳聚焦。如果需要通过与光学聚焦调节交替来优化。

　　2.在不改变光学聚焦调节和最短焦距的情况下，调整红色和蓝色摄像管管，直到达到最佳聚焦。借助于后焦距调整，在所有焦距(缩放)和与物体的恒定距离处维持图像聚焦(聚焦调整)。

　　1. Select the white channel. Set the optical focus at the maximum focal length. Adjust the camera tube in the W-channel with the shortest focus and divergent focus until the best focus is achieved. If needed to be optimized by alternating with the optical focus adjustment.

　　2. Adjust the red and blue camera tubes without changing the focus adjustment and the shortest focus until the best focus is reached. By means of the back focus adjustment, image focus (focus adjustment) is maintained at all focal lengths (zoom) and at a constant distance from the object.