Laser head of two-D laser guide system

Abstract

The laser head includes angle encoder, transmitting tube, receiving tube, rotary reflection mirror. Transmitting tube and receiving tube are installed together as an integrative part. Large lens in diameter 20-40 mm is installed above the said integrative part. There is a 5-10mm hole in center of the large lens. Light beam passed through the hole is transmitted out. Focus point of the said large lens deviated from center of rotation axis is focused on chip of receiving tube. Advantage of the invention are (1) transmitting tube and receiving tube are integrated, departure of central position is about 10 mm, small size and easy to be fabricated; (2) easy of collinear installing transmitting tube and rotation axis in small error; (3) high sensitivity of the receiving tube caused by large focusing lens.

Description

Technical field [0001] The invention relates to a laser head, in particular to a laser head of a two-dimensional laser guidance system. Background technique [0002] Automatic vehicle guidance systems, such as unmanned guided vehicles, mainly have electromagnetic induction guidance, laser guidance and magnet gyro guidance. Among them, due to the advanced technology of laser guidance technology, laser guidance is currently the fastest growing. This kind of laser-guided truck can complete the transportation of objects without human supervision. People can set various two-dimensional function curves, and the truck can run according to these curves, or people only need to carry it for the first time. Guide the truck to complete one learning, and the truck will automatically complete the remaining tasks. The automatic transport vehicle emits a laser beam by the transmitter head, and then receives the laser beam reflected by the directional coaxial reflector that has been positioned ar...

AI Technical Summary

Problems solved by technology

However, due to the high precision required for the placement position and angle installation of the reflector, this solution can easily lead to errors and is not easy to correct

[0004] Another solution is that the position of the launch tube and the receiver tube is opposite to the above: a large reflector is installed directly above the launch tube, and a small opening is provided in the middle of the large reflector, so that the light emitted by the launch tube passes through the The opening is emitted to the rotating mirror, and the received light is reflected by the large mirror to the lens in front of the receiving tube and then focused to the receiving tube. Since the receiving tube is set sideways, the volume of the device is relatively large.

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