There are two common types of fisheye lenses. One is circular imaging and the other is rectangular imaging. The three-dimensional angle of the former can be larger than the latter. At present, the fisheye lens used by most panoramic cameras is the first one because its three-dimensional viewing angle can reach 360 degrees and 180 degrees and achieve an ideal panoramic angle of view. Although the viewing angle provides an unparalleled enjoyment, it is obtained on the premise of sacrificing the original monitoring image. The deformed image of a fisheye lens is generally called barrel distortion, and this distortion will follow the angle of field of view. Expansion is serious but it is also a reasonable phenomenon.
Generally, the viewing angle of the surveillance camera is in the range of 60 degrees to 90 degrees. If there are monitoring requirements for all large-scale monitoring sites, if only a few cameras are installed to cover the surveillance area, the camera cost and installation cost will undoubtedly increase. Display and storage costs will increase correspondingly; even if the dome can achieve 360-degree full-range monitoring through the PTZ, it cannot achieve 360-degree monitoring at the same time. In practical applications, most domes are set by presetting. Bit-by-bit monitoring of the scene makes it difficult to avoid situations where important events are “leak-controlledâ€.
In the current security market, as the blind spot of video surveillance becomes more and more unacceptable to people, the market demand for video surveillance systems without blind spots is also increasing. The panoramic camera is to achieve panoramic monitoring. Its appearance can eliminate blind spots in the true sense, and ensure the reliability and integrity of the video. It is of great significance to users and even the society. One of them is a panoramic camera based on an ultra-wide angle fisheye lens. The fisheye panoramic camera is a modification and upgrade of the existing monitoring system. In the fisheye panoramic monitoring system, only one fisheye panoramic camera is needed to achieve panoramic blind-free area monitoring. Without any mechanical components, the image captures the panoramic image of the monitoring site through the ultra-wide angle fisheye lens, according to different installation methods. , Can achieve 180 degrees or 360 panoramic picture, and through the embedded or external image processing software to elliptical or circular deformed image corrected to a normal video image. Strictly speaking, the panoramic camera is not a camera. It is a "three in one" panoramic monitoring system made up of fisheye lens HD camera image processing software.
Thick Wall Steel Tubing/Thick Wall Steel Tube/Thick Wall Steel Pipe are produced by Hot Rolling, Cold Drawn or Cold Rolling production method,
with thick wall to 100mm.
The size range:
OD: 10-420mm
WT: 5-100mm
Length: according to customers PO, cutting to short pcs available (Pls refer to below pictures of cutting and packing)
Application:
The Heavy Wall Steel Tubing are used in the field of:
Machinary to specific parts for auto parts, machines, agricultrual indusctry etc.
Thick Wall Steel Tubing
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