内容发布更新时间 : 2024/9/22 9:50:08星期一 下面是文章的全部内容请认真阅读。

IR-CUT双滤光片切换器是由:滤光片(一片红外截止或吸收滤光片和一片全透光谱滤光片) + 动力部分(可以是电磁、电机或其他动力源)构成。

国际整流-CUT双滤光片切换器的原理是通过一块电路控制板和切换器,当白天的光线充分时,电路控制板驱使切换器中切换到红外截止滤光片工作,CCD还原出真实彩色,当夜间光线不足时,红外截止滤光片自动移开,全光谱光学玻璃开始工作,能够感应晚上红外灯的辅光,使CCD充分利用到所有光线,从而大大提高了红外摄像机的低照性能,整个画面清晰自然。

白天由于红外及各种光线的对CCD的参杂,干扰了色彩还原,摄像机反映在监视器上的物体与人眼直接看到的就变样了,产生彩色失真。如人眼看到绿色,通过摄像机则变成蓝色,鲜艳的色彩变灰淡。

IR -CUT双滤光片专为CCD摄影机修正偏色、失焦的问题,促使撷取影像画面不失焦、不偏色,红外夜视更通透,解决红外一体机,日夜图像偏色影响,能够过滤强光让画面色彩纯美更柔和、达到人眼视觉色彩一致。这也就很好的解决了色差的问题。

Day & Night network cameras

All types of network cameras—fixed, fixed dome, PTZ, and PTZ dome—can offer day and night functionality. A day and night camera is designed to be used in outdoor installations or in indoor environments with poor lighting.

A day and night, color network camera delivers color images during the day. As light diminishes below a certain level, the camera can automatically switch to night mode to make use of near infrared (IR) light to deliver high-quality, black and white images.

Near-infrared light, which spans from 700 nanometers (nm) up to about 1000 nm, is beyond what the human eye can see, but most camera sensors can detect it and make use of it. During the day, a day and night camera uses an IR-cut filter. IR light is filtered out so that it does not distort the colors of images as the human eye sees them. When the camera is in night (black and white) mode, the IR-cut filter is removed, allowing the camera’s light sensitivity to reach down to 0.001 lux or lower.

Day and night cameras are useful in environments that restrict the use of artificial light. They include low-light video surveillance situations, covert surveillance and discreet applications, for example, in a traffic surveillance situation where bright lights would disturb drivers at night.

An IR illuminator that provides near-infrared light can also be used in conjunction with a day and night camera to further enhance the camera’s ability to produce high-quality video in lowlight or nighttime conditions