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分体空调控制器--如何调试镜头、红外灯

2018-08-17 09:00:37 浏览次数:0

分体空调控制器--如何调试镜头、红外灯
定焦镜头后截距的调整方法是怎样的?   
使用摄像机的自动电子快门功能,将镜头光圈调到最大,聚焦环按景物实际距离调整,然后调节后截距直至图像最清晰为止。变焦镜头后截距的调整方法是怎样的?   
打开摄像机自动电子快门功能;  
用控制器将镜头光圈调到最大;  
将摄像机对准30米以外的物体,聚焦调至无穷远处(大部分镜头是面对镜头将 前面的聚焦调节环顺时针旋转到头);  
用控制器调整镜头变焦将景物推至最远,调整镜头后截距使景物最清楚;  
用控制器调整镜头变焦将景物拉至最近,微调镜头聚焦使景物最清楚;  
重复4-5步数遍,直至景物在镜头变焦过程中始终清楚。   
红外灯有不同的功率及715、830nM两种波长,波长的选择取决于什么因素?   
如果用户不介意红外光线被肉眼所见,715nM的红外灯由于其照明距离远,效果 好应为首选;  
如果考虑到红暴问题,必须使用830nM的红外灯,应使用低照度的摄像机;  
选择相对孔径较大的镜头;  
红外灯的发散角应与镜头的视场角相匹配。
分体空调控制器
分体空调控制器
最大照明范围取决于天气条件、物体的反光率和周围的光照水平,红外聚光灯最远的投射范围如下:   
500W=150-200米 300W=80-120米 50W=15-30米 30W=5-15米   
镜头的安装方式:有C式和CS式两种,两者的螺纹均为1英寸32牙,直径为1英寸,差别是镜头距CCD靶面的距离不同,C式安装座从基准面到焦点的距离为17.562毫米,比CS式距离CCD靶面多一个专用接圈的长度,CS式距焦点距离为12.5毫米。别小看这一个接圈,如果没有它,镜头与摄像头就不能正常聚焦,图象变得模糊不清。所以在安装镜头前,先看一看摄像头和镜头是不是同一种接口方式,如果不是,就需要根据具体情况增减接圈。有的摄像头不用接圈,而采用后像调节环(如松下产品),调节时...
本文章来自于:分体空调控制器


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