A laser power regulating device

Abstract

The utility model discloses a kind of laser power regulating devices, belong to photoelectric equipment technical field, including mounting bracket;Hollow motor, the hollow motor is symmetrically installed in the mounting bracket both sides;Prism sleeve, the prism sleeve is installed on the hollow motor;First glan prism and second glan prism are respectively installed in the prism sleeve of the mounting bracket both sides;The mounting bracket, the hollow motor with the prism sleeve are all equipped with the light transmission hole for transmission light path.The utility model provides a kind of laser power regulating device structure simple, compact, can realize laser power stable regulation;Two glan prisms can be rotated synchronously adjusted, form different included angle, speed, applicable to any polarization state laser;Use hollow servo motor or hollow stepper motor, and the regulation precision is high, and there is no occlusion to light beam;Integrated modularization, small, light in weight.

Description

Technical Field

[0001] This utility model belongs to the field of optoelectronic equipment technology, and specifically relates to a laser power adjustment device. Background Technology

[0002] Lasers possess advantages such as strong collimation, high monochromaticity, and good coherence, leading to their wide application in laser processing technology, laser medicine and photonics biology, and laser weapons. Laser power adjustment is a key technology in advanced laser applications, spanning industrial processing, scientific research, medical aesthetics, and communication sensing. Fast, stable, and precise laser power adjustment technology significantly improves the quality, efficiency, and safety of laser use.

[0003] Currently, the most common method for adjusting laser power is to use a neutral density filter. This method is simple, efficient, and low-cost, but the absorption attenuator has a high thermal effect, is easily damaged, and is non-linearly adjustable. Another method is to use a reflection attenuator. This method is suitable for medium- and high-power lasers, but it requires the use of a beam trap to absorb the reflected light, which is more expensive and is also non-linearly adjustable.

[0004] In addition, a combination of half-wave plates and polarizers can also be used to linearly adjust the laser power. This method has a small thermal effect, smooth adjustment, and a large adjustment range, but it will cause a large laser loss for unpolarized lasers. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by providing a laser power adjustment device that adjusts laser power by rotating two Glan prisms relative to each other. This device offers high stability and adjustment accuracy, and enables linear power adjustment for lasers of any polarization state.

[0006] This utility model achieves this objective through the following technical solution: A laser power adjustment device, comprising: Mounting rack; A hollow motor, wherein the hollow motor is symmetrically mounted on both sides of the mounting frame; A prism sleeve, which is mounted on the hollow motor; The first Glan prism and the second Glan prism are respectively installed in the prism sleeves on both sides of the mounting bracket; The mounting bracket, the hollow motor, and the prism sleeve are all provided with light-transmitting holes for the transmission light path.

[0007] Furthermore, the hollow motor is a servo motor or a stepper motor.

[0008] Furthermore, the light-transmitting holes of the prism sleeve, the hollow motor, and the mounting bracket have the same axis.

[0009] Furthermore, the mounting bracket is provided with mounting holes for fixed installation.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: The laser power adjustment device provided by this utility model has a simple and compact structure, which can realize stable adjustment of laser power; two Glan prisms can be rotated and adjusted synchronously to form different angles and speeds, which is suitable for lasers of any polarization state; using a hollow servo motor or a hollow stepper motor, the adjustment accuracy is high and there is no obstruction to the beam; it is integrated and modular, small in size and light in weight. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the double-glen prism adjustment device of this utility model; Figure 2 This is a cross-sectional structural diagram of the double-glen prism adjustment device of this utility model.

[0012] In the attached diagram, the following labels are used: 1-First Glan prism; 2-Prism sleeve; 3-Hollow motor; 4-Mounting bracket; 5-Second Glan prism; 6-Light transmission hole. Detailed Implementation

[0013] 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.

[0014] This utility model discloses an embodiment of a laser power adjustment device, such as... Figure 1 , Figure 2 As shown, it includes a first glen prism 1, a second glen prism 5, a prism sleeve 2, a hollow motor 3, and a mounting bracket 4.

[0015] The first Glan prism 1 and the second Glan prism 5 are both fixed inside the prism sleeve 2 by set screws.

[0016] The prism sleeve 2 is fixed to the hollow motor 3 by screws.

[0017] The hollow motor 3 is fixed to both sides of the mounting bracket 4 by screws, and is symmetrically distributed from left to right.

[0018] Prism sleeve 2, hollow motor 3 and mounting bracket 4 all have light-transmitting holes 6, and the installation must ensure high coaxiality of each light-transmitting hole 6.

[0019] Hollow motor 3 can be either a hollow servo motor or a hollow stepper motor.

[0020] The extinction ratio of the first Glan prism 1 and the second Glan prism 5 can be selected according to the actual working conditions.

[0021] The first Glan prism 1 and the second Glan prism 5 need to be used together. Different included angles and different rotation speeds can be obtained by the relative rotation of the two hollow motors 3.

[0022] The two hollow motors 3 can be adjusted to rotate relative to each other simultaneously, or they can be adjusted to rotate individually, so that one Glan prism remains stationary while the other Glan prism is rotated.

[0023] 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 power adjustment device, characterized in that, include: Mounting rack; A hollow motor, wherein the hollow motor is symmetrically mounted on both sides of the mounting frame; A prism sleeve, which is mounted on the hollow motor; The first Glan prism and the second Glan prism are respectively installed in the prism sleeves on both sides of the mounting bracket; The mounting bracket, the hollow motor, and the prism sleeve are all provided with light-transmitting holes for the transmission light path.

2. The laser power adjustment device according to claim 1, characterized in that, The hollow motor is either a servo motor or a stepper motor.

3. The laser power adjustment device according to claim 1, characterized in that, The prism sleeve, the hollow motor, and the light-transmitting holes of the mounting bracket have the same axis.

4. The laser power adjustment device according to claim 1, characterized in that, The mounting bracket is provided with mounting holes for fixed installation.

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