Receiving lens, and TOF coaxial radar laser transceiving system structure and product

Abstract

The invention relates to a receiving lens which comprises a lens body, the lens body is a convex lens, and one surface for receiving light is provided with an axis hole for installing a light emittingtube. A receiving lens provided by the invention is adopted; laser emitting and receiving light paths can be completely coaxial, the emitting light directly irradiates a target object, the light is reflected back to directly enter the lens body and is condensed to a receiving sensor, and the light path does not need to be changed through a reflecting lens, so that the light path emitting and receiving are most direct and most effective, the structure is simple, the assembly is convenient, and the finished product detection distance is long.

Description

technical field [0001] The invention relates to the technical field of laser radar, and more specifically, to a receiving lens, TOF coaxial radar laser transceiver system structure and products. Background technique [0002] The traditional coaxial laser radar adopts the method of refracting the emission light path through the mirror, and then refracting it back through the mirror to hit the receiving lens or the receiving sensor. The process is complex, the debugging cycle is long, and other shortcomings. There is also a pseudo-coaxial method, that is, the emitting optical path is parallel to the receiving optical path, but the center of the optical path is not on the same axis. , but after all, it is not completely coaxial, part of the light is lost, and the optical path is not concentric in the future. When the target is too close to the radar, such as 20cm, the received light at this time is too little, and the receiving system may not be able to capture the signal. C...

AI Technical Summary

Problems solved by technology

[0002] The traditional coaxial laser radar adopts the method of refracting the emission light path through the mirror, and then refracting it back through the mirror to hit the receiving lens or the receiving sensor. The process is complicated, the debugging cycle is long, and other disadvantages

There is also a pseudo-coaxial method, that is, the emitting optical path is parallel to the receiving optical path, but the center of the optical path is not on the same axis. , but it is not completely coaxial after all, part of the light is lost, and the optical path will not be concentric in the future. When the target is too close to the radar, such as 20cm, the received light at this time is too small, and the receiving system may not be able to capture the signal.

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