A laser detection testing device

Abstract

This utility model discloses a laser detection testing device, belonging to the field of laser detection technology. It includes a laser signal source, a visible light indicator light source, a beam combiner, an optical lens, and a power adapter. The laser signal source has a communication interface for connecting to a host computer and an external trigger BNC interface. Optical fibers connect the laser signal source and the beam combiner, the visible light indicator light source and the beam combiner, and the beam combiner and the optical lens. The power adapter connects to an external power source and supplies power to the laser signal source and the visible light indicator light source. This utility model uses an optical lens to achieve adjustable spot size, reducing the need for frequent adjustments to the test position distance. The use of red indicator light provides a more intuitive view of the position aimed at the photoelectric detection device, enabling rapid positioning. It features a simple structure, convenient assembly, low cost, and high practicality.

Description

Technical Field

[0001] This utility model belongs to the field of laser detection technology, and specifically relates to a laser detection testing device. Background Technology

[0002] The photoelectric detection equipment works by receiving diffuse reflection signals from the target. These signals pass through a filter and form a light spot of a specific size on the photosensitive surface of the detector. The detector converts the light spot signal into four electrical signals containing target orientation information. These signals are then processed by the information processing module to obtain the error angle between the optical axis and the target's line of sight. The testing process for the photoelectric detection equipment mainly involves controlling the laser detection testing device to emit light through serial communication with a host computer. The photoelectric detection equipment then collects the light signals. A schematic diagram of the test is shown below. Figure 1 As shown.

[0003] The existing technology has the following drawbacks:

[0004] 1. The laser spot was not homogenized, which caused significant changes in the positional micro-motion signal during the testing of the photoelectric detection equipment, resulting in many inconveniences.

[0005] 2. It does not have an optical lens, so the size of the light spot is not adjustable, and the test distance and position need to be adjusted repeatedly.

[0006] 3. When irradiating with laser, the position aimed at the photoelectric detection device cannot be seen directly, and repeated positioning is required. Utility Model Content

[0007] This invention addresses the shortcomings of existing technologies by providing a laser detection testing device that uses an optical lens to effectively reduce the need for frequent adjustments to the test position distance and uses a red indicator light to more intuitively show the position aimed at the photoelectric detection device.

[0008] This utility model is achieved through the following technical solution:

[0009] A laser detection and testing device includes a laser signal source, a visible light indicator light source, a beam combiner, an optical lens, and a power adapter. The laser signal source is equipped with a communication interface for connecting to a host computer and an external trigger BNC interface. The laser signal source and the beam combiner, the visible light indicator light source and the beam combiner, and the beam combiner and the optical lens are connected by optical fibers. The power adapter is connected to an external power source and supplies power to the laser signal source and the visible light indicator light source.

[0010] Furthermore, a fiber optic disk is used for beam homogenization between the beam combiner and the optical lens.

[0011] Furthermore, the visible light indicator light source is equipped with a switch.

[0012] Furthermore, the outer casing is provided with a light outlet corresponding to the position of the optical lens.

[0013] Furthermore, the housing is provided with a panel, on which the power adapter interface and switch, the visible light indicator light switch, the external trigger BNC interface, and the communication interface connecting the laser signal source to the host computer are all located.

[0014] Furthermore, a handle is provided on the top of the outer casing.

[0015] Furthermore, the housing is provided with adjustable support legs, including an internally threaded base mounted on the bottom of the housing and threaded support legs.

[0016] Furthermore, the visible light indicator light source switch is a self-locking switch.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention provides a laser detection testing device that homogenizes the laser spot, resulting in a uniform distribution and sufficiently good spot uniformity. This effectively reduces fluctuations in the positional signal during photoelectric detection testing, facilitating testing. An optical lens allows for adjustable spot size, reducing the need for frequent adjustments to the test position. Since the laser source signal band is invisible during debugging, aiming at the center of the photoelectric detection device is difficult, requiring signal strength acquisition via an oscilloscope. By combining a visible light indicator beam with the laser source signal beam, the position of the visible light spot aligned with the photoelectric detection device can be clearly observed, allowing for rapid positioning by adjusting the device's position. The device communicates with a host computer via a serial port to adjust laser source configuration parameters and control light output and shutdown functions. It boasts advantages such as simple structure, convenient assembly, low cost, and high practicality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of laser detection.

[0020] Figure 2 This is a schematic diagram of the optical structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the circuit structure of this utility model;

[0022] Figure 4 This is the electrical wiring diagram for this utility model;

[0023] Figure 5 This is an internal structural diagram of an embodiment of the present utility model;

[0024] Figure 6 This is a front view of an embodiment of the present utility model;

[0025] Figure 7This is a side view of an embodiment of the present utility model;

[0026] Figure 8 (a) and (b) are comparison images of the light spot homogenization treatment before and after the embodiment of this utility model.

[0027] The attached diagram is labeled as follows: 1-Laser signal source, 2-Visible light indicator light source, 3-Beam combiner, 4-Optical lens, 5-Power adapter, 6-Housing shell, 7-Panel, 8-Power adapter interface, 9-Visible light indicator switch, 10-External trigger BNC interface, 11-Host computer communication interface, 12-Light output port, 13-Handle, 14-Internal thread base, 15-Support leg. Detailed Implementation

[0028] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art. It should be noted that, without conflict, the embodiments and features in the embodiments of the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] This utility model provides a specific embodiment applicable to a laser detection testing device, such as... Figures 2 to 8 As shown, it includes a laser signal source 1, a visible light indicator light source 2, a beam combiner 3, an optical lens 4, and a power adapter 5. The laser signal source 1, the visible light indicator light source 2, the beam combiner 3, the optical lens 4, and the power adapter 5 are arranged inside the housing 6. The housing 6 has a light outlet 12 corresponding to the position of the optical lens 4.

[0030] The outer casing 6 is provided with a panel 7, which is equipped with a power adapter interface 8, a visible light indicator switch 9, an external trigger BNC interface 10, and a host computer communication interface 11. The power adapter interface 8 is provided with a control switch for the power adapter 5. The laser signal source 1 and the beam combiner 3, the visible light indicator light source 2 and the beam combiner 3, and the beam combiner 3 and the optical lens 4 are connected by optical fiber. The power adapter 5 is connected to an external power supply and provides power to the laser signal source 1 and the visible light indicator light source 2.

[0031] The top of the outer casing 6 is equipped with a handle 13, and the bottom of the outer casing 6 is equipped with an internally threaded base 14. The internally threaded base 14 is connected to the threaded support leg 15. The structure is simple and the height can be changed according to actual needs.

[0032] In this embodiment, the power adapter 5 is a 12V power adapter, which is connected to an external AC 220V power supply and outputs 12V DC power. One power supply powers the laser signal source 1, and the other power supply powers the visible light indicator light source 2.

[0033] The visible light indicator light source switch 9 is a self-locking switch. When in use, the switch is turned on to illuminate the light source, and when not in use, the switch is turned off.

[0034] The host computer communication interface 11 uses an RS232 serial port to communicate with the host computer, set various parameters of the laser signal source 1, control the output and shutdown of light, and realize human-computer interaction.

[0035] The visible light indicator light source 2 uses red visible light, which is combined with the laser through the beam combiner 3, then homogenized using a GDF105 / 1255m passive fiber disk, and then irradiated through the output port after being adjusted by the optical lens 5.

[0036] Comparison of light spot homogenization before and after Figure 8 As shown, the laser spot generally exhibits a Gaussian distribution, with the highest intensity at the center and gradually decreasing towards the periphery. Figure 8 As shown in (a). After homogenization, the light spot is evenly distributed, with balanced energy at the center and edges. This prevents significant fluctuations from minor movements of the photoelectric detection device. The homogenized light spot is as follows: Figure 8 As shown in (b).

[0037] The laser signal source 1 has two working modes: internal trigger and external trigger. When using external trigger, an external trigger source needs to be provided, and the signal is generated by the signal generator through the external trigger BNC interface 10.

[0038] The present invention has been described in detail above through embodiments, but the content described is only an exemplary embodiment of the present invention and should not be considered as limiting the scope of implementation of the present invention. The protection scope of the present invention is defined by the claims. Any technical solutions designed by those skilled in the art using the technical solutions described in the present invention, or designed by those skilled in the art under the inspiration of the technical solutions of the present invention, within the substance and protection scope of the present invention, to achieve the above-mentioned technical effects, or equivalent changes and improvements made to the scope of the application, should still fall within the patent protection scope of the present invention. It should be noted that, for clarity, descriptions of some components and processes that are not directly and obviously related to the protection scope of the present invention but are known to those skilled in the art have been omitted in the description of the present invention.

Claims

1. A laser detection testing device, characterized in that, The system includes a laser signal source, a visible light indicator light source, a beam combiner, an optical lens, and a power adapter. The laser signal source is equipped with a communication interface for connecting to a host computer and an external trigger BNC interface. The laser signal source and the beam combiner, the visible light indicator light source and the beam combiner, and the beam combiner and the optical lens are connected by optical fibers. The power adapter is connected to an external power source and supplies power to the laser signal source and the visible light indicator light source.

2. The laser detection testing device according to claim 1, characterized in that, The beam combiner and the optical lens are connected by an optical fiber disk for beam homogenization.

3. A laser detection testing device according to claim 1 or 2, characterized in that, The visible light indicator light source is equipped with a switch.

4. The laser detection testing device according to claim 3, characterized in that, The testing device is equipped with a housing, and the housing has a light outlet located at the position corresponding to the optical lens.

5. A laser detection testing device according to claim 4, characterized in that, The housing is provided with a panel, on which the power adapter interface and switch, the visible light indicator light source switch, the external trigger BNC interface, and the communication interface connecting the laser signal source to the host computer are all located.

6. The laser detection testing device according to claim 5, characterized in that, The top of the outer casing is equipped with a handle.

7. A laser detection testing device according to claim 5, characterized in that, The housing is provided with adjustable support legs, including an internally threaded base installed at the bottom of the housing and threaded support legs.

8. A laser detection testing device according to claim 5, characterized in that, The visible light indicator light source switch is a self-locking switch.

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