Adjustment and installation device for optical antenna of semiconductor laser range instrument

Abstract

The invention discloses an adjustment and installation device for an optical antenna of a semiconductor laser range instrument. A parallel light tube is arranged behind the adjusted optical antenna; an image screen is arranged on a focus surface of the parallel light tube; a rear end area array camera is arranged behind the image screen; the rear end area array camera is connected with a computer; a reading microscope is arranged before the adjusted optical antenna; the reading microscope is connected with a front end area array CCD camera which is connected with the computer; the adjusted optical antenna comprises a transmitting antenna and a receiving antenna; and a semiconductor laser is arranged on the transmitting antenna and connected with a driving power. The adjustment and installing device can achieve integrated and visualized accurate optical antenna adjustment and installing with laser shot, viewing filed receiving and optical axle parallelity, has the advantages of simple structure, high optical antenna installation and adjustment precision and efficiency, no influence by subjective factors, and the like, and can be widely applied to the adjustment and the installation of the optical antenna of the semiconductor laser range instrument.

Description

technical field [0001] The invention relates to an optical calibration technology, in particular to an optical antenna calibration device for a semiconductor laser range finder. Background technique [0002] Laser ranging technology is an active remote sensing technology. It is widely used in important fields such as range testing, laser aiming, geodetic surveying, engineering construction, and water and soil monitoring. It is an important dual-use technology for both military and civilian purposes. [0003] The basic principle of the laser ranging system is "to launch a detection laser to the target, then receive the echo scattered by the target, and obtain the distance information of the target through the analysis of the echo". Usually, in order to achieve the largest possible detection distance, the divergence angle of the detection beam should be compressed to a minimum to ensure the directional propagation of energy. Correspondingly, in order to improve the signal-to-...

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Problems solved by technology

In this method, the emission spot on the focal plane of the collimator needs to be found first, and a small hole is set at the emission spot. At the same time, an external light source is used to illuminate the small hole to form a reference beam for receiving antenna adjustment. Therefore, the installation and adjustment process is cumbersome. And the adjustment accuracy is greatly affected by the size, position and lighting source of the small hole

In addition, in the existing literature, there is no report on the "correction method for the optical transmission and reception field of view of the laser rangefinder", let alone the "complete calibration method or calibration process of the optical antenna of the semiconductor laser rangefinder". to report

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