360-degree blind area-free panoramic lens applied to video vehicle

Abstract

The invention discloses a 360-degree blind area-free panoramic lens applied to a video vehicle and belongs to the field of an optical lens. According to the panoramic lens, relatively few lenses are employed, a 360-degree surround-view panoramic high definition lens is achieved according to arrangement of the lenses, and production cost of the 360-degree high definition surround-view panoramic lens is reduced. The 360-degree blind area-free panoramic lens is composed of a reflector, a lens group with positive focal power and an optical filter. The reflector is a non-spherical reflector. The lens group with the positive focal power comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a conical aluminium reflective film lens, a seventh lens and an eighth lens. According to the 360-degree blind area-free panoramic lens, production cost is reduced, a structure is simple, and manufacturing is cheap. Resolution of 1080P and 720P high definition detectors can be satisfied. The camera lens has a unique 360-degree simultaneous observation characteristic. All people and activities are viewed without obstruction. Target confirmation speed is improved, and a sudden event is not omitted or missed. Panoramic monitoring is actually realized.

Description

technical field [0001] The invention relates to a panoramic lens, in particular to a 360-degree panoramic lens without blind spots applied to a video car. Background technique [0002] Modern imaging devices have been widely used in various fields. In order to meet people's increasing demand for capturing video information, when imaging devices are used in some specific fields, such as video cars, 360-degree panoramic monitoring professionals will be required. Panoramic photography needs to achieve no blind spots and no dead angles in the panoramic range, and can look at the whole situation without using complicated "expansion software" or stitching multiple images. At the same time, the development of imaging detector technology has greatly improved the resolution and number of pixels of the detector. Nowadays, high-pixel cameras such as 1.3 million pixels (720P), 2 million pixels (1080P), and 3 million pixels are the mainstream. The imaging quality of the lens, the size ...

AI Technical Summary

Problems solved by technology

However, the characteristics of the transmission fisheye lens determine that as the field of view increases from -55 degrees to +20 degrees, the lens will produce serious negative distortion, which makes the image information of the peripheral field of view severely compressed, which greatly limits the peripheral field of view. clarity

At the same time, the size of the traditional transmissive panoramic lens cannot meet the requirements of lightness, thinness and shortness, and the production cost of a single lens is relatively high

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