Portable laser detection device suitable for photoelectric tracking equipment

Abstract

The utility model provides a portable laser detection device suitable for photoelectric tracking equipment, which comprises a convex lens, a mother board, a receiving board and a base, and is characterized in that the mother board and the receiving board are respectively mounted at two ends of the base; the mother board is provided with a through hole used for installing a convex lens. The distance between the receiving plate and the convex lens is equal to the focal length of the convex lens. A convex lens focusing principle is utilized, laser energy output by the laser rangefinder is converged to a metal plate at the focus of the lens, whether laser output exists or not is judged by observing whether sparks exist at a convergence point or not through naked eyes, the laser output capability is judged according to the spark brightness, and direct observation is facilitated. The device does not need to be installed on a device body, has no interface matching problem, can be repeatedly used, and is simple to use, convenient to carry, easy to store, low in cost, convenient to manufacture and convenient to popularize.

Description

Technical Field

[0001] This invention relates to a laser detection device. Background Technology

[0002] Optical tracking equipment is mainly used for target search and automatic target tracking. It features high precision, fast response speed, and good stability, and is currently widely used in aviation, military, and civilian applications such as security inspection, sports, and safety monitoring. The laser in optical tracking equipment is a lifespan component; its failure rate gradually increases with usage time, necessitating the detection of laser emission effectiveness. Currently, manufacturers use photographic paper to receive the laser spot and determine if laser output is present. However, photographic paper has low detection efficiency, is difficult to store, and is not conducive to rapid fault location. Furthermore, the traditional photographic paper positioning method suffers from poor security, low accuracy, and poor observation results. Developing a laser emission effectiveness detection device for laser rangefinders is of great practical significance for improving fault location efficiency and ensuring safety during repair processes. Summary of the Invention

[0003] To overcome the shortcomings of existing technologies, this invention provides a portable laser detection device suitable for photoelectric tracking equipment. It utilizes the focusing principle of a convex lens to focus the laser energy output by the laser rangefinder onto a metal plate at the focal point of the lens. The presence of laser output is determined by visually observing whether there is a spark at the focal point, and the intensity of the output laser is judged based on the brightness of the spark.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a portable laser detection device suitable for photoelectric tracking equipment, including a convex lens, a mother plate, a receiving plate and a base.

[0005] The base has a mother plate and a receiving plate installed at its two ends respectively; the mother plate has through holes for mounting a convex lens; the distance from the receiving plate to the convex lens is equal to the focal length of the convex lens.

[0006] The convex lens is a biconvex lens with a diameter of 50mm and a focal length of 100mm.

[0007] The mother plate is fixed to a fixing plate by bolts; the fixing plate has a stepped through hole, the inner diameter of the through hole at one end of the fixing plate near the mother plate is smaller than the outer diameter of the convex lens, and the other end is machined with an internal thread with an inner diameter larger than the outer diameter of the convex lens; the internal thread of the fixing plate matches the external thread of the pressure screw, pressing the convex lens tightly onto the fixing plate.

[0008] The mother plate and the pressure screw are machined from aluminum rods, and the fixing plate is made by laser cutting holes in aluminum plate. The mother plate and the fixing plate are fixed together with internal hex screws.

[0009] Both the receiving plate and the base are made of aluminum plate with a thickness of 5mm.

[0010] The receiving plate and the base, as well as the mother plate and the base, are connected and fixed by aluminum welding.

[0011] The beneficial effects of this invention are:

[0012] (1) This invention visualizes laser light through the focusing principle of a convex lens, making it easy to observe directly.

[0013] (2) This invention does not need to be installed on the device body, there is no interface matching problem, and it can meet the universality requirements of different photoelectric tracking devices.

[0014] (3) The present invention can be reused, overcoming the drawback that photographic paper becomes ineffective after use.

[0015] (4) This invention is simple to use, easy to carry and easy to store.

[0016] (5) The materials used in this invention are aluminum plates and lenses, which are inexpensive, easy to manufacture, and easy to promote. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the convex lens fixing mechanism of the present invention.

[0018] Figure 2 This is a schematic diagram of the receiving plate and base of the present invention.

[0019] In the diagram, 1-fixed plate, 2-pressure screw, 3-mother plate, 4-base, 5-weld point, 6-receiving plate, 7-convex lens. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments. The present invention includes, but is not limited to, the following embodiments.

[0021] like Figure 1 , 2 As shown, the present invention provides a portable laser detection device suitable for photoelectric tracking equipment, comprising a convex lens fixing mechanism, a receiving plate, and a base. A suitable convex lens is selected, and a mechanism for easy assembly and disassembly is designed to install and fix the convex lens onto the base plate. A flat plate of the same focal length as the lens is selected as the base, and the convex lens fixing mechanism is vertically fixed to one end of the base (along the focal length direction). A flat plate of suitable height is selected as the receiving plate for the laser spot, and it is vertically fixed to the other end of the base (along the focal length direction).

[0022] When in use, point the convex lens end of the portable laser detection device of the photoelectric tracking equipment towards the laser emission window. The operator of the photoelectric tracker controls the laser emission, observes the presence of a light spot on the receiving plate of the tool, and judges the intensity of the light spot, thereby determining whether the main wave output of the laser is normal.

[0023] The portable laser detection device for photoelectric tracking equipment described in this invention is prepared as follows:

[0024] 1. Convex lens fixing mechanism

[0025] Based on the working principle of the tool and following the design principles of easy observation and safe use, a double convex lens with a diameter of 50mm and a focal length of 100mm was selected. The convex lens fixing mechanism consists of three parts: a mother plate 3, a pressure screw 2, and a fixing plate 1, which are used to reliably fix the convex lens 7 to the tool base.

[0026] The fixing plate is fixed to the mother plate by bolts. Both the mother plate and the fixing plate have through holes. The inner diameter of the through hole on the mother plate is smaller than the outer diameter of the convex lens. The inner diameter of the section of the fixing plate close to the mother plate in the axial direction is the same as the inner diameter of the through hole on the mother plate. The inner diameter of the remaining section of the fixing plate in the axial direction is slightly larger than the outer diameter of the convex lens, and an internal thread is machined on this section of the inner diameter. The external thread of the pressure screw matches this, and its inner diameter is slightly smaller than the outer diameter of the convex lens. The convex lens is fixed by the side wall of the fixing plate, the step between the through hole and the internal thread of the fixing plate, and the pressure screw.

[0027] The mother plate and the pressure screw are machined from an 80mm diameter aluminum rod. The fixing plate is made of a 60mm x 70mm x 5mm aluminum plate with laser-cut holes. The mother plate and the fixing plate are fixed together with M3*10 internal hex screws.

[0028] 2. Receiver board and base

[0029] Considering the strength and toughness during processing, both the receiving plate and the base are made of 5mm thick aluminum plate, with the receiving plate measuring 60mm x 70mm and the base measuring 60mm x 100mm.

[0030] The receiving plate and the base, as well as the mother plate and the base, are connected and fixed by aluminum welding.

[0031] The portable laser detection device for photoelectric tracking equipment described in this invention is used as follows:

[0032] (1) The repairman holds the laser detection tool and places it at the laser emission window of the photoelectric tracking equipment, adjusts the angle, and keeps the person as far away from the pointer as possible;

[0033] (2) The operator of the photoelectric tracking equipment turns on the laser power switch, selects the laser emission frequency, and starts laser ranging while ensuring the safety of personnel and equipment;

[0034] (3) Repair personnel observe the converged laser spot on the receiving board and judge the condition of the laser rangefinder based on whether there is a spot or the brightness of the spot observed on the receiving board. Specifically, if the observed spot flashes at the laser emission frequency and is relatively bright, it indicates that the laser rangefinder is in good condition; if the observed spot flashes at the laser emission frequency but is weak, it indicates that the laser energy is weak and it is necessary to increase the laser energy; if no laser spot is observed, it indicates that the laser rangefinder is damaged and needs to be inspected and repaired.

Claims

1. A portable laser detection device suitable for photoelectric tracking equipment, comprising a convex lens, a mother plate, a receiving plate, and a base, characterized in that, The base has a mother plate and a receiving plate installed at its two ends respectively; the mother plate has through holes for mounting a convex lens; the distance from the receiving plate to the convex lens is equal to the focal length of the convex lens.

2. The portable laser detection device suitable for use with a photoelectric tracking device according to claim 1, characterized in that, The convex lens is a biconvex lens with a diameter of 50mm and a focal length of 100mm.

3. The portable laser detection device suitable for use with a photoelectric tracking device of claim 1, wherein, The mother plate is fixed to a fixing plate by bolts; the fixing plate has a stepped through hole, the inner diameter of the through hole at one end of the fixing plate near the mother plate is smaller than the outer diameter of the convex lens, and the other end is machined with internal threads and the inner diameter is larger than the outer diameter of the convex lens. The internal thread of the fixing plate matches the external thread of the pressure screw, pressing the convex lens tightly onto the fixing plate.

4. The portable laser detection device suitable for use with a photoelectric tracking device according to claim 3, wherein, The mother plate and the pressure screw are machined from aluminum rods, and the fixing plate is made by laser cutting holes in aluminum plate. The mother plate and the fixing plate are fixed together with internal hex screws.

5. The portable laser detection device suitable for use with photoelectric tracking equipment according to claim 1, wherein, Both the receiving plate and the base are made of aluminum plate with a thickness of 5mm.

6. The portable laser detection device suitable for use with photoelectric tracking equipment according to claim 1, wherein, The receiving plate and the base, as well as the mother plate and the base, are connected and fixed by aluminum welding.

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