The Price Is Also Relatively Low Green Laser Pointer
The so-called solid-state laser radar. It is generally recognized that the non-rotating is the solid-state green laser pointer radar. Usually divided into three types, based on phased array, Flash, MEMS three ways to achieve. The phased array principle is used to realize the solid-state lidar, and the mechanical structure is completely eliminated. The phase angle of each transmitting unit in the transmitting array is adjusted to change the laser exit angle. Optical phased arrays generally use strict electrical signals to control their phase to achieve beam pointing scanning, so it can also be called electronic scanning technology. But it is also easy to form side lobes, which affects the beam working distance and angular resolution. At the same time, the production of green laser pointer is difficult.
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The solid-state green laser pointers radar using 3D Flash technology is a non-scanning radar. It emits area array light. It is a laser radar that focuses on the output of 2D or 3D images. Although the stability and cost are good, the main problem is that the detection distance is short, and there are still problems in the reliability of the technology. The MEMS-based solid-state lidar uses a micro-mirror to change the emission angle of a single transmitter for scanning, thereby forming a scanning field of view of a surface array. At present, many manufacturers are researching and developing laser radars based on the MEMS method. MEMS is relative to the first two. It is technically easier to implement and the price of green laser pointer is relatively low. Therefore, the host manufacturers are also optimistic.
2020-01-02 03:05:24
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