A radar and angle adjustment device
An angle adjustment device and radar technology, applied in the optical field, can solve problems such as troublesome splicing between fields of view, difficulty in assembling and debugging, and high cost, and achieve the effect of expanding the range of field of view angles
Active Publication Date: 2021-09-28
BENEWAKE BEIJING TECH CO LTD
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Problems solved by technology
Traditional radar can use Micro-Electro-Mechanical System (MEMS) scanning to expand the field of view, use MEMS micromirrors to complete vertical scanning, and rotate the fuselage to complete horizontal scanning, which is difficult to assemble and debug However, if multiple MEMS micromirrors are used to cover a larger field of view, a larger cost will be incurred, and the splicing between the fields of view will be more troublesome
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[0045] In order to make the above objects, features, and advantages of the present invention, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0046] Many specific details are set forth in the following description to facilitate the appreciation of the present invention, but the invention may also be implemented in other than other means described herein, and those skilled in the art can do without violating the contents of the present invention. Similarly, the present invention is not limited by the specific embodiments disclosed below.
[0047] Next, the present invention will be described in connection with the schematic diagram of the present invention, in detail, in order to facilitate explanation, the cross-sectional view showing the device structure is not in general proportion, and the schematic view is only an example, which should not be limited thereby The scope of the invention is protected...
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The invention provides a radar and an angle adjustment device. The angle adjustment device includes a first annular spherical mirror and a second annular spherical mirror stacked in sequence. The curvature radii of the first annular spherical mirror and the second annular spherical mirror are the same, and the inner surface is a spherical surface. A light hole is formed on the side wall of the annular spherical mirror, a first light port is formed on the side wall of the second annular spherical mirror, and the initial light beam can enter the cavity of the first annular spherical mirror through the light hole. After the inner surface of the spherical mirror reflects N-1 times, it is reflected once on the inner surface of the second annular spherical mirror, and exits through the first light port. Since the initial beam is reflected by the inner surface of the spherical mirror, according to the principle of geometric optics, the initial beam emitted The field of view range is larger than that of the incident initial light beam, so the field of view range can be expanded, and the angle adjustment device is applied to the radar, which can expand the field of view range of the radar.
Description
Technical field [0001] The present invention relates to the field of optics, and more particularly to a radar angle adjustment device. Background technique [0002] Radar distance measuring device is used, in particular, the initial signals transmitted radar echo signal reflected by an object are formed, the echo signal compared with the initial signal, so as to obtain precise information on the measured object distance. Wherein the initial signal may be a laser light signal, a laser beam having a small divergence angle, energy concentration, good point, advantages repetition frequency, laser radar may be achieved so that the measured object distance, high-precision measurement. At present, the laser radar in the aerospace, remote sensing, measuring and smart driving and other fields have a wide range of applications. [0003] Typically, a limited field of view of the radar. Traditional radar using microelectromechanical system (Micro-Electro-Mechanical System, MEMS) scanning a m...
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IPC IPC(8): G02B17/06G01S7/481G01S17/08
CPCG01S7/4814G01S17/08G02B17/06
Inventor 杨铮郑凯李远
Owner BENEWAKE BEIJING TECH CO LTD