AICO Resource
How Non IR Lens, IR Lens Work
Day & Night cameras are normally used in near-infrared ( NIR ) or infrared ( IR ) at night. If we use a Non IR lens with a day & night camera, the image will be out of focus ( [...]
About M.O.D, CS and C Mount, Depth of Field
M.O.D. The M.O.D. (minimum object distance) is the closest distance from the vertex of the front lens to the nearest object at which an image can be focused. CS and C Mount The CS-mount lens has the flange back distance of [...]
About Megapixel, Megapixel Lens for Megapixel Camera
Megapixel CCD and CMOS image sensors use a series of pixels arranged on a 2 dimensional grid. These pixels convert an optical image to an electronic signal. The number of pixels in an image usually defines the resolution, more pixels means [...]
HOW TO Distinguish Auto Iris，Manual Iris and P-Iris
There are four types of operation for lens iris, that are, (1) DC drive auto iris; (2) Video drive auto iris, (3) Manual iris, (4) P-iris. For DC drive type, the iris is controlled by the circuit inside the camera; For Video drive [...]
What Is The Focal Length of A Camera Lens
Rays from infinite distance objects are condensed internally in the lens at a common point on the optical axis. The point at which the image sensor of the CCTV camera is positioned, is called a focal point. By virtue of [...]
Choosing the Right CCTV Lens Based on the Chip
In the realm of surveillance systems, selecting the appropriate lens for your CCTV (Closed-Circuit Television) camera is crucial for achieving optimal performance. With the myriad of options available, it can be daunting to navigate through the technical specifications and make [...]
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