Due to the importance of the lens, before the monitoring and engineering design planning, only by first understanding the type of lens and its application methods, and understand the characteristics of its application, in order to maximize the lens imaging.
Fixed aperture lens: fixed focus and fixed aperture, mainly used in places where ambient light is fixed;
Manual iris lens: fixed focus but adjustable aperture, mainly used for fixed ambient light but indefinite place;
·Auto-iris lens (DC-drive): fixed focal length, using a DC voltage to drive a fixed-range location for ambient light variability;
·Auto-iris lens (Video-drive): fixed focal length, using a video signal to drive a fixed-range location for ambient light variability;
Manual iris zoom lens: It is mainly used in indoor environment where the degree of light is variable and the range is not the same;
Auto-aperture zoom lens: It is mainly used in outdoor environment where the ambient light is variable and the range is not the same;
· On-Board Lens (on-Board): mainly with infrared cameras, both indoor and outdoor;
· Fish-eye panoramic lens: It is mainly used in indoor environment where the degree of light is variable and the size of the range is specified;
·Power zoom lens: It can remotely control the focal length and aperture of the focal length. It is mainly used in places where the indoor and outdoor ambient light levels are uncertain and the depth of field range can be adjusted according to requirements.
·Pin-Hole: It is mainly used for hidden monitoring and places where the ambient light is indefinite and has a specific range.
From the above clear lens can be seen, the difference between the various types of lens is mainly in its use and application environment requirements. Therefore, in practical applications, how to match the lens perfectly is also a big challenge for the engineering company.
Fixed aperture lens: fixed focus and fixed aperture, mainly used in places where ambient light is fixed;
Manual iris lens: fixed focus but adjustable aperture, mainly used for fixed ambient light but indefinite place;
·Auto-iris lens (DC-drive): fixed focal length, using a DC voltage to drive a fixed-range location for ambient light variability;
·Auto-iris lens (Video-drive): fixed focal length, using a video signal to drive a fixed-range location for ambient light variability;
Manual iris zoom lens: It is mainly used in indoor environment where the degree of light is variable and the range is not the same;
Auto-aperture zoom lens: It is mainly used in outdoor environment where the ambient light is variable and the range is not the same;
· On-Board Lens (on-Board): mainly with infrared cameras, both indoor and outdoor;
· Fish-eye panoramic lens: It is mainly used in indoor environment where the degree of light is variable and the size of the range is specified;
·Power zoom lens: It can remotely control the focal length and aperture of the focal length. It is mainly used in places where the indoor and outdoor ambient light levels are uncertain and the depth of field range can be adjusted according to requirements.
·Pin-Hole: It is mainly used for hidden monitoring and places where the ambient light is indefinite and has a specific range.
From the above clear lens can be seen, the difference between the various types of lens is mainly in its use and application environment requirements. Therefore, in practical applications, how to match the lens perfectly is also a big challenge for the engineering company.
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