Transmitting and receiving optical axis parallel debugging method

Abstract

The invention relates to a transmitting and receiving optical axis parallelism debugging method, and belongs to the technical field of laser detection. According to the transmitting and receiving optical axis parallel debugging method realized based on the design structure, a spherical principle can be utilized, an optical path can be adjusted in a certain range in a non-polar mode, and the defects that a plurality of adjusting surfaces need to be designed and the structure is too complex in a traditional multi-direction adjusting mode are overcome.

Description

Technical Field

[0001] The invention belongs to the technical field of laser detection, and in particular relates to a method for parallel debugging of transmitting and receiving optical axes. Background Art

[0002] The parallelism of the laser transmitting and receiving optical axes is the premise for the application of laser detection technology. If the transmitting field of view cannot be completely contained in the receiving field of view, it will lead to the loss of laser energy and reduce the detection distance.

[0003] Due to the limitation of the processing technology of laser and detector, there is a certain deviation between the position of photosensitive surface and structural mounting surface. The laser is installed through related parts to form a transmitter, and the detector is installed through related parts to form a receiver. These parts will also have tolerances. In addition, the designed receiving and transmitting fields of view are very small. After the whole machine is assembled, the receiving and transmitting fields of view are not parallel, and the transmitting field of view cannot be completely included in the receiving field of view. Therefore, in the optical debugging of the whole machine, it is necessary to adjust the transmitter or receiver so that the receiving field of view covers the transmitting field of view to ensure the detection performance of the whole machine.

[0004] At present, the commonly used debugging method for a single direction is to adjust the gasket to achieve optical path debugging. By adding gaskets of different thicknesses under the installation part of the transmitter or receiver, the relative position of the transmitter and the receiver is adjusted so that the receiving field of view covers the transmitting field of view. This adjustment method is very troublesome and requires multiple assembly and disassembly and replacement of gaskets of different thicknesses. If you want to adjust quickly, it is difficult and you need to design multiple adjustment surfaces, which makes the structure more complex and difficult and occupies more space. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] The technical problem to be solved by the present invention is to provide a method for parallel debugging of transmitting and receiving optical axes, which can quickly realize the parallel adjustment of transmitting and receiving optical axes.

[0007] (II) Technical solution

[0008] In order to solve the above technical problems, the present invention provides a parallel debugging structure for transmitting and receiving optical axes, which is implemented by a spherical adjustment structure and can achieve rapid stepless adjustment of the parallelism of the transmitting and receiving optical axes.

[0009] Preferably, the structure includes a transmitter, a receiver and a frame; wherein the receiver is designed based on a spherical adjustment structure, including a receiving lens barrel, a spherical connector and a rotating member:

[0010] The rear half of the receiving lens barrel is connected to a spherical connector with a spherical structure on the outside, and 4 screw holes pointing to the center of the circle are designed on the spherical connector; the rotating part is correspondingly designed as a part with a hemispherical inner side and a large hemispherical outer side, and 4 through holes pointing to the center of the circle are also designed on the rotating part; the receiving lens barrel and the spherical connector are installed on the rotating part and can be fixed with 4 screws, and an arc-shaped gasket is provided between the screw and the rotating part, and the inner side of the arc-shaped gasket is designed to be spherical and the outer side is flat, so that no matter which position the receiving lens barrel is rotated to, the central axis of the screw coincides with the screw hole when the screw is locked;

[0011] The receiving lens barrel, the spherical connecting piece, the rotating piece and the arc-shaped gasket form a receiver; the receiver is fixed on the frame by four screws on the rotating piece, and the transmitter is also fixed on the frame.

[0012] Preferably, the frame is a plate-like structure provided with through holes.

[0013] Preferably, the transmitter comprises a transmitting lens.

[0014] Preferably, the structure is applied in laser detection technology.

[0015] The present invention also provides a method for parallel debugging of the transmitting and receiving optical axes implemented by the structure. If the receiving field of view cannot cover the transmitting field of view, the optical axis debugging is performed. When the transmitting and receiving optical axes are debugged, the outer ball of the spherical connector rotates with the receiving lens barrel in the inner ball of the rotating part. When the optical design requirements are met, the receiving lens barrel and the spherical connector are locked with screws through the arc gasket to complete the debugging.

[0016] Preferably, the method is applied in laser detection technology.

[0017] The present invention also provides a laser detection structure implemented based on the structural design.

[0018] (III) Beneficial effects

[0019] 1. The parallel debugging method of the transmitting and receiving optical axes implemented based on the design structure of the present invention can utilize the spherical principle to infinitely adjust the optical path within a certain range, overcoming the defects of the traditional multi-directional adjustment method, which requires the design of multiple adjustment surfaces and has an overly complex structure.

[0020] 2. The structural design of the parallel debugging method of the transmitting and receiving optical axes of the present invention is simple, which overcomes the defects of the traditional adjustment method that requires shims for adjustment, the operation is complicated, and the process is cumbersome.

[0021] 3. The parallel debugging method of the transmitting and receiving optical axes implemented based on the design structure of the present invention can realize stepless adjustment, overcoming the defect of the traditional gear-type adjustment based on the thickness of the gasket. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional schematic diagram of the structural design for implementing the parallel debugging method of the transmitting and receiving optical axes of the present invention;

[0023] Figure 2 It is a two-dimensional schematic diagram of the structural design of the parallel debugging method of the transmitting and receiving optical axes of the present invention. DETAILED DESCRIPTION

[0024] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples.

[0025] The present invention provides a method for parallel debugging of transmitting and receiving optical axes, which is a method for parallel debugging of transmitting and receiving optical axes based on a non-scanning device, and the method is implemented by using a spherical adjustment structure. Through this technology, rapid stepless adjustment of parallelism of transmitting and receiving optical axes can be achieved. At the same time, the design has a simple structure, is easy to operate, and has a wide range of popularization and application value.

[0026] refer to Figure 1 , Figure 2 The invention provides a method for parallel debugging of transmitting and receiving optical axes, which is implemented by a transmitter, a receiver and a frame; wherein the receiver is designed based on a spherical adjustment structure, including a receiving lens barrel, a spherical connector and a rotating member:

[0027] The rear half of the receiving lens barrel is connected to a spherical connector with a spherical structure on the outside, and 4 screw holes pointing to the center of the circle are designed on the spherical connector. The rotating part is correspondingly designed as a part with a hemispherical inner side and a large hemispherical outer side, and 4 slightly larger through holes pointing to the center of the circle are also designed on the rotating part; the receiving lens barrel and the spherical connector are installed on the rotating part and fixed with 4 screws, and an arc-shaped gasket is provided between the screw and the rotating part. The inner side of the arc-shaped gasket is designed to be spherical and the outer side is flat. In this way, no matter which position the receiving lens barrel rotates to, the central axis of the screw coincides with the screw hole when the screw is locked, so that the locking surface can fit tightly and be fixed firmly.

[0028] The receiver is composed of a receiving lens barrel, a spherical connector, a rotating part, and an arc-shaped gasket. The receiver is fixed to the frame (mounting part) by four screws on the rotating part, and the transmitter is also fixed to the frame; if the receiving field of view cannot cover the transmitting field of view, the optical axis must be debugged.

[0029] When debugging the transmitting and receiving optical axes, the outer ball of the spherical connector rotates with the receiving lens barrel in the inner ball of the rotating part. When the optical design requirements are met, the arc-shaped gasket is used to lock it with screws.

[0030] The specific three-dimensional schematic diagram of the parallel debugging design of the transmitting and receiving optical axes is as follows: Figure 1 The two-dimensional schematic diagram of the parallel debugging design of the transmitting and receiving optical axes is shown in Figure 2 shown.

[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A parallel debugging structure for transmitting and receiving optical axes, characterized in that: The structure is implemented by a spherical adjustment structure, which can achieve stepless adjustment of the parallelism of the transmitting and receiving optical axes.

2. The structure according to claim 1, characterized in that The structure includes a transmitter, a receiver and a frame; wherein the receiver is designed based on a spherical adjustment structure, including a receiving lens barrel, a spherical connector and a rotating member: The rear half of the receiving lens barrel is connected to a spherical connector with a spherical structure on the outside, and 4 screw holes pointing to the center of the circle are designed on the spherical connector; the rotating part is correspondingly designed as a part with a hemispherical inner side and a large hemispherical outer side, and 4 through holes pointing to the center of the circle are also designed on the rotating part; the receiving lens barrel and the spherical connector are installed on the rotating part and can be fixed with 4 screws, and an arc-shaped gasket is provided between the screw and the rotating part, and the inner side of the arc-shaped gasket is designed to be spherical and the outer side is flat, so that no matter which position the receiving lens barrel is rotated to, the central axis of the screw coincides with the screw hole when the screw is locked; The receiving lens barrel, the spherical connecting piece, the rotating piece and the arc-shaped gasket form a receiver; the receiver is fixed on the frame by four screws on the rotating piece, and the transmitter is also fixed on the frame.

3. The structure according to claim 2, characterized in that The frame is a plate-shaped structure with through holes.

4. The structure according to claim 2, characterized in that The transmitter includes a transmitting lens.

5. The structure according to claim 2, characterized in that This structure is used in laser detection technology.

6. A method for parallel debugging of transmitting and receiving optical axes implemented by the structure as claimed in any one of claims 2 to 5, characterized in that: If the receiving field of view cannot cover the transmitting field of view, the optical axis is debugged. When debugging the transmitting and receiving optical axes, the outer ball of the spherical connector rotates with the receiving lens barrel in the inner ball of the rotating part. When the optical design requirements are met, the receiving lens barrel and the spherical connector are locked with screws through the arc gasket to complete the debugging.

7. The method according to claim 6, characterized in that This method is used in laser detection technology.

8. A laser detection structure implemented based on the structural design as claimed in any one of claims 1 to 5.

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