Lamp light emitting system and lamp light beam shape control method

Abstract

The invention discloses a lamp light emitting system which comprises a laser light source, an imaging hole, a focusing lens, a zoom lens and a light emitting lens, the imaging hole, the focusing lens, the zoom lens and the light emitting lens are sequentially arranged along the optical axis of the laser light source, and the positions of the laser light source, the imaging hole and the light emitting lens are relatively fixed. The focusing lens and the zoom lens can move back and forth along the optical axis direction of the laser light source relative to the laser light source, the imaging hole and the light emitting lens; a laser distance measuring sensor is fixedly connected to the light emitting mirror, and light rays emitted by the laser light source are parallel to infrared light rays emitted by the laser distance measuring sensor. The invention further discloses a lamp beam shape control method. By the adoption of the method and device, the phenomena that the beam waist and the edge of the light beam are not sharp can be avoided ingeniously through the laser distance measuring sensor and the built-in lamp control logic, and the use experience of a user is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of lamps, and particularly to a light output system of a lamp and a method for controlling the light beam shape of a lamp. Background Art

[0002] At present, as an effect of pursuing the transmission of light energy in the shape of a light column, the light beam effect of a lamp pursues a full state of the generated light column and a sharp and clean edge of the light column, and is now widely used in various scenarios, from small indoor stages to large outdoor cities and seaside scenic spots. Due to the use in large-scale scenarios at a long distance, if the light needs to be transmitted farther at this time, the light-emitting angle of the lamp must be designed to be smaller and smaller, the light energy density of the light source must be larger and larger, and the lens must be larger and larger. At this time, if this type of lamp is used back in a small indoor space scenario, the lamp may show an obvious beam waist state during use. In this state, it not only meets the pursuit of the light column and sharpness of the light beam effect. Summary of the Invention

[0003] The purpose of the present invention is to provide a light output system of a lamp and a method for controlling the light beam shape of a lamp, which can skillfully avoid the phenomenon of beam waist and unsharp edges through a laser distance sensor and built-in lamp control logic, and greatly improve the user experience.

[0004] In order to achieve the above purpose, the technical solution adopted in one aspect of the present invention is as follows:

[0005] A light output system of a lamp, which includes a laser light source, and an imaging hole, a focusing lens, a zoom lens, and a light output lens arranged in sequence along the optical axis of the laser light source. Among them, the positions of the laser light source, the imaging hole, and the light output lens are relatively fixed, and both the focusing lens and the zoom lens can move back and forth along the optical axis direction of the laser light source relative to the laser light source, the imaging hole, and the light output lens; laser distance sensors are respectively fixedly connected to both symmetric sides of the light output lens, and the light rays emitted by the laser light source are parallel to the infrared rays emitted by the laser distance sensors respectively.

[0006] As a preferred solution of the above light output system of a lamp, a plurality of laser distance sensors are provided.

[0007] As a preferred solution of the above light output system of a lamp, the edge of the imaging hole has no burrs.

[0008] As a preferred solution of the above light output system of a lamp, the parallelism deviation between the infrared rays emitted by the laser distance sensor and the optical axis of the lamp is less than 0.05°.

[0009] As a preferred solution of the above light output system of a lamp, a control channel for controlling the movement of the zoom lens and the focusing lens is provided in the lamp, and the control channel has 255 control channel values.

[0010] In addition, to achieve the above object, the technical solution adopted in another aspect of the present invention is as follows:

[0011] A method for controlling the beam shape of a lamp, which is applied to the light-emitting system of the lamp described in the above contents, and includes the following steps:

[0012] Step S1: Measure the spatial distance in the direction of lamp use through the laser range sensor;

[0013] Step S2: Move the focusing lens and the zoom lens to project the focused light spot of the light source onto the farthest point in space, and enlarge the image and make the beam parallel through the zoom lens;

[0014] Step S3: Measure the control channel values of the beam effect zoom interval corresponding to different spatial distance parameters, the control channel values corresponding to the actual focusing lens when the smallest angle light spot is clear at the farthest point after the change of each beam effect zoom interval, and the control channel values corresponding to the zoom lens, make a table and write it into the lamp control system;

[0015] Step S4: Detect whether the lamp is in the beam effect zoom interval state through the position of the zoom lens; if so, read the distance data returned by the laser range sensor at this time, read the built-in data table of the lamp, and adjust the zoom lens data and the focusing lens data according to the distance data to perform interval control on the beam shape; if not, the laser range sensor does not work.

[0016] As a preferred solution of the above method for controlling the beam shape of a lamp, when the spatial distance is 0 - 5M, the control channel values corresponding to the beam effect zoom interval are 228 - 225. Correspondingly, the control channel value corresponding to the actual zoom lens when the smallest angle light spot is clear at the farthest point after the change of the beam effect zoom interval is 228, and the control channel value corresponding to the actual focusing lens is 255;

[0017] When the spatial distance is 5 - 10M, the control channel values corresponding to the beam effect zoom interval are 230 - 255. Correspondingly, the control channel value corresponding to the actual zoom lens when the smallest angle light spot is clear at the farthest point after the change of the beam effect zoom interval is 230, and the control channel value corresponding to the actual focusing lens is 250;

[0018] When the spatial distance is 10 - 20M, the control channel values corresponding to the beam effect zoom interval are 230 - 255. Correspondingly, the control channel value corresponding to the actual zoom lens when the smallest angle light spot is clear at the farthest point after the change of the beam effect zoom interval is 232, and the control channel value corresponding to the actual focusing lens is 240;

[0019] When the spatial distance is 20 - 30M, the control channel values corresponding to the beam effect zoom range are 234 - 255. Correspondingly, the control channel value corresponding to the actual zoom lens with the smallest angle spot clear at the farthest distance after the change of the beam effect zoom range is 234, and the control channel value corresponding to the actual focus lens is 230;

[0020] When the spatial distance is 30 - 40M, the control channel values corresponding to the beam effect zoom range are 236 - 255. Correspondingly, the control channel value corresponding to the actual zoom lens with the smallest angle spot clear at the farthest distance after the change of the beam effect zoom range is 236, and the control channel value corresponding to the actual focus lens is 220;

[0021] When the spatial distance is 40 - 50M, the control channel values corresponding to the beam effect zoom range are 238 - 255. Correspondingly, the control channel value corresponding to the actual zoom lens with the smallest angle spot clear at the farthest distance after the change of the beam effect zoom range is 238, and the control channel value corresponding to the actual focus lens is 210;

[0022] When the spatial distance is 50 - 100M, the control channel values corresponding to the beam effect zoom range are 240 - 255. Correspondingly, the control channel value corresponding to the actual zoom lens with the smallest angle spot clear at the farthest distance after the change of the beam effect zoom range is 240, and the control channel value corresponding to the actual focus lens is 200;

[0023] When the spatial distance is 100 - 200M, the control channel value corresponding to the beam effect zoom range is 255. Correspondingly, the control channel value corresponding to the actual zoom lens with the smallest angle spot clear at the farthest distance after the change of the beam effect zoom range is 255, and the control channel value corresponding to the actual focus lens is 190;

[0024] When the spatial distance is greater than 200M, the control channel value corresponding to the beam effect zoom range is 255. Correspondingly, the control channel value corresponding to the actual zoom lens with the smallest angle spot clear at the farthest distance after the change of the beam effect zoom range is 255, and the control channel value corresponding to the actual focus lens is 180.

[0025] Implementing a lighting system for light output and a method for controlling the beam shape of a lighting fixture provided by the present invention, compared with the prior art, its beneficial effects are as follows:

[0026] By providing a laser ranging sensor on the light-emitting mirror, the present invention can accurately and real-time obtain the spatial distance in the direction pointed by the lamp. When the lamp is in the state of the beam effect zoom range, by adjusting the parallel light emission and the control channel values corresponding to the actual focusing mirror where the smallest angle light spot is clear at the farthest distance after the change of each beam effect zoom range and the control channel values corresponding to the zoom mirror, the phenomenon of beam waist and unsharp edges can be avoided. It can be seen that the present invention ingeniously optimizes the operation of the lamp through the laser ranging sensor and the built-in lamp control logic, greatly improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly introduced below.

[0028] Figure 1 FIG. is a schematic structural diagram of a light-emitting system of a lamp provided by an embodiment of the present invention;

[0029] Figure 2 FIG. is a schematic diagram of an in-built data table in a lamp in a method for controlling the beam shape of a lamp provided by an embodiment of the present invention.

[0030] Reference numerals in the drawings:

[0031] Laser light source 1; imaging hole 2; focusing mirror 3; zoom mirror 4; light-emitting mirror 5; laser ranging sensor 6; optical axis 7. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The following will further describe in detail the specific embodiments of the present invention with reference to the accompanying drawings and embodiments. The following embodiments are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0033] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. It should be understood that the present invention uses the terms "first", "second", etc. to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0034] Please refer to Figure 1 and Figure 2, an embodiment of the present invention provides a light-emitting system for a lamp, which includes a laser light source 1 and an imaging hole 2, a focusing lens 3, a zoom lens 4, and a light-emitting mirror 5 arranged in sequence along the optical axis 7 of the laser light source 1. Among them, the positions of the laser light source 1, the imaging hole 2, and the light-emitting mirror 5 are relatively fixed, and both the focusing lens 3 and the zoom lens 4 can move back and forth along the optical axis 7 of the laser light source 1 relative to the laser light source 1, the imaging hole 2, and the light-emitting mirror 5; a laser ranging sensor 6 is fixedly connected to the light-emitting mirror 5, and the light rays emitted by the laser light source 1 are parallel to the infrared rays emitted by the laser ranging sensor 6 respectively.

[0035] It can be understood that the center of the lamp optical device and the light propagation direction both propagate along a single direction of the optical axis 7. The laser ranging sensor 6 is placed in the direction parallel to the optical axis 7 in the optical path. The laser ranging sensor 6 emits infrared rays, which return to the laser ranging sensor 6 when encountering an obstacle, so as to calculate the spatial distance of the usage space. Therefore, as long as it is ensured that the infrared rays emitted by the laser ranging sensor 6 are parallel to the optical axis 7 of the optical system and the lamp is unobstructed, the spatial distance in the usage direction of the lamp can be measured. In this embodiment, the parallelism deviation between the infrared rays emitted by the laser ranging sensor 6 and the optical axis 7 of the lamp is less than 0.05°, and the laser ranging sensor 6 can follow the movement of the lamp head. Therefore, it is not necessary to ensure that it is placed at the forefront of the optical path.

[0036] It should be noted that in order to pursue the ultra-long projection of light energy, it is necessary to project as few light spots as possible in a sufficiently far place. This is because the smaller the light spot, the greater the light energy density. Generally, the size requirement of this light spot is similar to the light spot size of the light-emitting mirror 5 to obtain the effect of a parallel light column. However, the imaging of the lamp optical lens will become smaller as the distance decreases. When the distance is close to a certain extent, a light beam waist can be seen in the light beam propagation path. This is because when the lens optical path forms an image at a certain distance, the light spot size at this distance is already smaller than the light spot at the light-emitting mirror 5, and the light beam passing through this imaging surface will also diverge and propagate. Therefore, at different distances, it is necessary to enlarge the light spot to ensure that an image point with the same light spot size as that at the light-emitting mirror 5 can be formed at the farthest place in space. Thus, as long as the zoom angle less than the light exit aperture section is restricted at different distances, different minimum angles can be obtained at different distances. The situation where the zoom angle is less than the light spot at the light-emitting mirror 5 is a section of area, which is the beam effect zoom interval, and it automatically changes when it is detected that the zoom lens 4 is in this section of area.

[0037] Such as Figure 1As shown in the figure, a high-energy light spot is focused in the light-emitting direction of the laser light source 1. A circular imaging aperture 2 is placed at this light spot. At this time, by moving the focusing lens 3 and the zoom lens 4 to focus on this point, the edge of the light column of the light beam can be made sharp. By changing the position of the zoom lens 4, the focused point can form images of different sizes at different distances. Therefore, as long as the focused light spot of the light source is projected and imaged at the farthest point in this space during the use of the lamp, and the image is enlarged by zooming to make the light beam parallel, the phenomenon of the light beam having a waist and an unsharp edge can be avoided. The zoom lens 4 refers to a lens group that can move a certain distance back and forth along the optical axis 7 to achieve spot magnification; the focusing lens 3 refers to a lens group that can move a certain distance back and forth along the optical axis 7 to achieve sharp imaging of the spot on a certain plane. Generally, a control channel for controlling the movement of the zoom lens 4 and the focusing lens 3 is provided in the stage lamp. This control channel has 0-255 control channel values, that is, the moving distances of the zoom lens 4 and the focusing lens 3 are linearly divided into 255 parts for control, which is similar to a normalized value.

[0038] Since the relative positions of the light source focus point, the optical lens, and the laser distance sensor 6 are fixed when the design is completed, at this time, the engineer makes a table of the distance parameters measured by the laser distance sensor 6 in the system, the control channel values of the beam effect zoom range corresponding to different spatial distance parameters, the control channel values corresponding to the actual focusing lens 3 when the smallest angle light spot is clear at the farthest point after the change of each beam effect zoom range, and the control channel values corresponding to the zoom lens 4, and writes them into the lamp control system. After completion, the lamp will continuously repeat the distance test during use. When it is detected that the lamp is in the beam effect zoom range, it will be controlled according to the test distance in sections to avoid the phenomenon of a high-energy beam waist in the middle of the beam.

[0039] According to the lamp light-emitting system of the present invention, by setting the laser distance sensor 6 on the light-emitting mirror 5, it can accurately obtain the spatial distance size in the direction pointed by the lamp in real time, and when the lamp is in the state of the beam effect zoom range, by adjusting the parallel light emission and the control channel values corresponding to the actual focusing lens 3 when the smallest angle light spot is clear at the farthest point after the change of each beam effect zoom range and the control channel values corresponding to the zoom lens 4, the phenomenon of the beam having a waist and an unsharp edge can be avoided. It can be seen that the present invention cleverly optimizes the use operation of the lamp through the laser distance sensor 6 and the built-in lamp control logic, greatly improving the user experience.

[0040] Exemplarily, a plurality of the laser distance sensors 6 are provided. Such a design can improve the accuracy of the data when measuring the spatial distance.

[0041] Exemplarily, the edge of the imaging aperture 2 has no burrs, which can avoid forming an abnormal beam shape.

[0042] In addition, in another aspect, an embodiment of the present invention provides a method for controlling the beam shape of a lamp, which applies the lamp light-emitting system described in the above-mentioned contents, and includes the following steps:

[0043] Step S1: Measure the spatial distance in the using direction of the lamp through the laser distance sensor 6;

[0044] Step S2: Move the focusing lens 3 and the zoom lens 4 to project the focused light spot of the light source onto the farthest point in space, and enlarge the image and make the beam parallel through the zoom lens 4;

[0045] Step S3: Measure the control channel values of the beam effect zoom interval corresponding to different spatial distance parameters, the control channel values corresponding to the actual focusing lens 3 when the smallest angle spot is clear at the farthest point after the change of each beam effect zoom interval, and the control channel values corresponding to the zoom lens 4, make a table, and write it into the lamp control system;

[0046] Step S4: Detect whether the lamp is in the beam effect zoom interval state through the position of the zoom lens 4; if so, read the distance data returned by the laser distance sensor 6 at this time, read the built-in data table of the lamp, and adjust the data of the zoom lens 4 and the focusing lens 3 according to the distance data to perform interval control on the beam shape; if not, the laser distance sensor 6 does not work.

[0047] It should be noted that since the method for controlling the beam shape of the lamp applies the lamp light-emitting system described in the above-mentioned contents, it has the same beneficial effects as the lamp light-emitting system described in the above-mentioned contents, and will not be elaborated here.

[0048] In this embodiment, as Figure 2 shown, the control channel values of the beam effect zoom interval corresponding to different spatial distance parameters, the control channel values corresponding to the actual focusing lens 3 when the smallest angle spot is clear at the farthest point after the change of each beam effect zoom interval, and the control channel values corresponding to the zoom lens 4 are specifically as follows:

[0049] When the spatial distance is 0 - 5M, the control channel values corresponding to the beam effect zoom interval are 228 - 225. Correspondingly, the control channel value corresponding to the actual zoom lens 4 when the smallest angle spot is clear at the farthest point after the change of the beam effect zoom interval is 228, and the control channel value corresponding to the actual focusing lens 3 is 255;

[0050] When the spatial distance is 5 - 10M, the control channel values corresponding to the beam effect zoom range are 230 - 255. Correspondingly, the control channel value corresponding to the actual zoom lens 4 where the smallest angle light spot is clear at the farthest distance after the beam effect zoom range changes is 230, and the control channel value corresponding to the actual focusing lens 3 is 250;

[0051] When the spatial distance is 10 - 20M, the control channel values corresponding to the beam effect zoom range are 230 - 255. Correspondingly, the control channel value corresponding to the actual zoom lens 4 where the smallest angle light spot is clear at the farthest distance after the beam effect zoom range changes is 232, and the control channel value corresponding to the actual focusing lens 3 is 240;

[0052] When the spatial distance is 20 - 30M, the control channel values corresponding to the beam effect zoom range are 234 - 255. Correspondingly, the control channel value corresponding to the actual zoom lens 4 where the smallest angle light spot is clear at the farthest distance after the beam effect zoom range changes is 234, and the control channel value corresponding to the actual focusing lens 3 is 230;

[0053] When the spatial distance is 30 - 40M, the control channel values corresponding to the beam effect zoom range are 236 - 255. Correspondingly, the control channel value corresponding to the actual zoom lens 4 where the smallest angle light spot is clear at the farthest distance after the beam effect zoom range changes is 236, and the control channel value corresponding to the actual focusing lens 3 is 220;

[0054] When the spatial distance is 40 - 50M, the control channel values corresponding to the beam effect zoom range are 238 - 255. Correspondingly, the control channel value corresponding to the actual zoom lens 4 where the smallest angle light spot is clear at the farthest distance after the beam effect zoom range changes is 238, and the control channel value corresponding to the actual focusing lens 3 is 210;

[0055] When the spatial distance is 50 - 100M, the control channel values corresponding to the beam effect zoom range are 240 - 255. Correspondingly, the control channel value corresponding to the actual zoom lens 4 where the smallest angle light spot is clear at the farthest distance after the beam effect zoom range changes is 240, and the control channel value corresponding to the actual focusing lens 3 is 200;

[0056] When the spatial distance is 100 - 200M, the control channel value corresponding to the beam effect zoom range is 255. Correspondingly, the control channel value corresponding to the actual zoom lens 4 where the smallest angle light spot is clear at the farthest distance after the beam effect zoom range changes is 255, and the control channel value corresponding to the actual focusing lens 3 is 190;

[0057] When the spatial distance is greater than 200M, the control channel value corresponding to the beam effect zoom range is 255. Correspondingly, after the beam effect zoom range changes, the control channel value corresponding to the actual zoom lens 4 with the smallest angle spot clear at the farthest distance is 255, and the control channel value corresponding to the actual focusing lens 3 is 180.

[0058] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0059] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art of this technology, without departing from the technical principle of the present invention, several improvements and substitutions can still be made, and these improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A lighting system, characterized in that: It comprises a laser light source and an imaging hole, a focusing mirror, a zoom mirror and a light output mirror which are sequentially arranged along the optical axis of the laser light source, wherein the positions of the laser light source, the imaging hole and the light output mirror are relatively fixed, and the focusing mirror and the zoom mirror can both move forward and backward relative to the laser light source, the imaging hole and the light output mirror along the optical axis direction of the laser light source; laser ranging sensors are fixedly connected on two symmetrical sides of the light output mirror, and the light emitted by the laser light source is respectively parallel to the infrared light emitted by the laser ranging sensor.

2. The lighting system according to claim 1, characterized in that: The laser ranging sensor is provided in plurality.

3. The lighting system according to claim 1, characterized in that: The edge of the imaging hole has no burrs.

4. The lighting system according to claim 1, characterized in that: The parallelism deviation between the infrared light emitted by the laser ranging sensor and the optical axis of the lamp is less than 0.05°.

5. The lighting system according to claim 1, characterized in that: A control channel for controlling the movement of the zoom lens and the focusing lens is provided in the lamp, and the control channel is provided with 255 control channel values.

6. A method for controlling the light beam shape of a lamp, applied to the light emitting system of the lamp as claimed in any one of claims 1 to 5, characterized in that: The lamp beam shape control method comprises the following steps: Step S1: measuring the spatial distance in the use direction of the lamp by the laser distance measuring sensor; Step S2: Move the focusing mirror and the zoom mirror to project the focused light point of the light source into an image at the farthest point in the space, and use the zoom mirror to enlarge the image and make the light beam parallel; Step S3: measuring the control channel values ​​of the beam effect zoom intervals corresponding to different spatial distance parameters, the control channel values ​​corresponding to the actual focusing mirror with the minimum angle spot clear at the farthest distance after each beam effect zoom interval changes, and the control channel values ​​corresponding to the zoom mirror, making a table, and writing it into the lighting control system; Step S4: Detect whether the lamp is in the beam effect zoom interval state through the zoom lens position; if so, read the distance data returned by the laser ranging sensor at this time, read the built-in data table of the lamp, adjust the zoom lens data and the focusing lens data according to the distance data, and control the beam shape in intervals; if not, the laser ranging sensor does not work.

7. The method for controlling the light beam shape of a lamp according to claim 6, characterized in that: When the spatial distance is 0-5M, the control channel value corresponding to the beam effect zoom interval is 228-225. Accordingly, after the beam effect zoom interval changes, the control channel value corresponding to the actual zoom lens with the clear minimum angle spot at the farthest distance is 228, and the control channel value corresponding to the actual focusing lens is 255. When the spatial distance is 5-10M, the control channel value corresponding to the beam effect zoom interval is 230-255. Accordingly, after the beam effect zoom interval changes, the control channel value corresponding to the actual zoom lens with the clear minimum angle spot at the farthest distance is 230, and the control channel value corresponding to the actual focusing lens is 250. When the spatial distance is 10-20M, the control channel value corresponding to the beam effect zoom interval is 230-255. Accordingly, after the beam effect zoom interval changes, the control channel value corresponding to the actual zoom lens with the clear minimum angle spot at the farthest distance is 232, and the control channel value corresponding to the actual focusing lens is 240. When the spatial distance is 20-30M, the control channel value corresponding to the beam effect zoom interval is 234-255. Accordingly, after the beam effect zoom interval changes, the control channel value corresponding to the actual zoom lens with the clear minimum angle spot at the farthest distance is 234, and the control channel value corresponding to the actual focusing lens is 230. When the spatial distance is 30-40M, the control channel value corresponding to the beam effect zoom interval is 236-255. Accordingly, after the beam effect zoom interval changes, the control channel value corresponding to the actual zoom lens with the clear minimum angle spot at the farthest distance is 236, and the control channel value corresponding to the actual focusing lens is 220. When the spatial distance is 40-50M, the control channel value corresponding to the beam effect zoom interval is 238-255. Accordingly, after the beam effect zoom interval changes, the control channel value corresponding to the actual zoom lens with the clear minimum angle spot at the farthest distance is 238, and the control channel value corresponding to the actual focusing lens is 210. When the spatial distance is 50-100M, the control channel value corresponding to the beam effect zoom interval is 240-255. Accordingly, after the beam effect zoom interval changes, the control channel value corresponding to the actual zoom lens with the clear minimum angle spot at the farthest distance is 240, and the control channel value corresponding to the actual focusing lens is 200. When the spatial distance is 100-200M, the control channel value corresponding to the beam effect zoom interval is 255. Accordingly, after the beam effect zoom interval changes, the control channel value corresponding to the actual zoom lens with the clear minimum angle spot at the farthest distance is 255, and the control channel value corresponding to the actual focusing lens is 190. When the spatial distance is greater than 200M, the control channel value corresponding to the beam effect zoom interval is 255. Accordingly, after the beam effect zoom interval changes, the control channel value corresponding to the actual zoom lens with the minimum angle spot clear at the farthest distance is 255, and the control channel value corresponding to the actual focusing lens is 180.

Images