Laser projection lamp

Abstract

The utility model relates to a laser projection lamp which comprises a laser source, a first reflection assembly and a second reflection assembly. The laser source generates laser parallel to the first direction; the first reflecting assembly comprises a first reflecting mirror and a first driver, the first driver is in driving connection with the first reflecting mirror through a first rotating output shaft, and the axial direction of the first rotating output shaft is perpendicular to the first direction; the second reflecting assembly comprises a second reflecting mirror and a second driver, the second driver is in driving connection with the second reflecting mirror through a second rotating output shaft, and the axial direction of the second rotating output shaft is parallel to the first direction; the first reflector is used for reflecting laser of the laser source to the second reflector. Through the reflection of the reflector, the motion amplitude can be amplified, and because the motion of the light source does not need to be controlled, only the direction of the reflected laser needs to be controlled, the requirement on the precision of a driver is reduced, and high-sensitivity and high-precision control is realized with lower cost.

Description

Technical Field

[0001] The utility model relates to the technical field of laser lighting, in particular to a laser projection lamp. Background Art

[0002] Laser projection lamps are used to project lasers onto a background wall or background curtain. By driving the laser source to move at high speed, the position of the laser point on the background wall or background curtain changes at a high frequency. Due to the high movement frequency of the laser source, the movement trajectory of the laser point forms a pattern to the naked eye, thereby achieving imaging. Compared with ordinary projectors that can only project images according to preset images, laser projection lamps have the characteristics of real-time programming and image editing, and can change the projected pattern in real time. At present, laser projection lamps are widely used.

[0003] The current laser projection lamp drives the laser source to move on the X-axis and Z-axis to change the position of the laser on the background wall. This driving method requires the laser source to move at a high frequency, has high requirements for the driver, and requires drivers in two directions to drive the laser source separately, and has high requirements for precision. The above two reasons lead to high costs. Utility Model Content

[0004] Based on this, it is necessary to provide a laser projection lamp.

[0005] A laser projection lamp comprises: a laser source, a first reflection component and a second reflection component;

[0006] The laser source is used to generate laser light parallel to the first direction;

[0007] The first reflection assembly includes a first reflector and a first driver, the first driver has a first rotation output shaft, the first driver is drivingly connected to the first reflector via the first rotation output shaft, the first driver is used to drive the first reflector to rotate, and the axial direction of the first rotation output shaft is perpendicular to the first direction;

[0008] The second reflection assembly includes a second reflection mirror and a second driver, the second driver has a second rotation output shaft, the second driver is drivingly connected to the second reflection mirror through the second rotation output shaft, the second driver is used to drive the second reflection mirror to rotate, and the axial direction of the second rotation output shaft is parallel to the first direction;

[0009] The first reflecting mirror is used to reflect the laser light from the laser source to the second reflecting mirror, and the second reflecting mirror is used to reflect the laser light reflected by the first reflecting mirror to the outside.

[0010] In one embodiment, the laser source includes a laser emitter and a third reflective component;

[0011] The laser transmitter has a transmitter head, and the transmitter head emits laser light parallel to the second direction;

[0012] The third reflective component includes a third reflective mirror, which is disposed adjacent to the emitting head and is used to reflect the laser emitted by the emitting head to a first direction.

[0013] In one embodiment, the second direction is perpendicular to the first direction.

[0014] In one embodiment, the first drive comprises a first servo motor.

[0015] In one embodiment, the second drive comprises a second servo motor.

[0016] In one embodiment, the distance between the first reflector and the second reflector is greater than the sum of the rotation radius of the first reflector and the rotation radius of the second reflector, and the distance between the first reflector and the second reflector is less than the sum of the rotation diameter of the first reflector and the rotation diameter of the second reflector.

[0017] In one embodiment, it also includes a shell and a base plate, an installation cavity is formed between the shell and the base plate, the laser emitter, the first driver, the second driver and the third reflector are arranged in the installation cavity, the laser emitter, the first driver, the second driver and the third reflector are arranged on the base plate, a light outlet is opened on the shell, and the second reflector is used to reflect the laser to the light outlet so that the laser is emitted from the light outlet to the outside.

[0018] In one embodiment, an area of ​​the third reflector is larger than an area of ​​the first reflector and an area of ​​the second reflector.

[0019] In one embodiment, the first reflective component, the second reflective component and the third reflective component are configured as follows:

[0020] The first reflection component further includes a first support frame, and the first driver is disposed on the first support frame; and / or

[0021] The second reflective assembly further includes a second support frame, and the second driver is disposed on the second support frame; and / or

[0022] The third reflection assembly also includes a third support frame, the third reflector is arranged on the third support frame, and the third support frame is connected to the bottom plate through a connecting member.

[0023] In one embodiment, it also includes a battery module and a control module, the battery module is electrically connected to the control module, the first driver, the second driver and the laser emitter, and the control module is electrically connected to the first driver, the second driver and the laser emitter respectively.

[0024] The above-mentioned laser projection lamp projects the laser onto the target by reflecting the laser through mirrors arranged in two mutually perpendicular directions. Since the reflector has high adjustment sensitivity and can amplify the movement amplitude through reflection by the reflector, the reflector can make a slight angle change, so that the laser point projected on the target can have a large position change. In addition, since there is no need to control the movement of the light source and only the direction of the reflected laser needs to be controlled, the requirements for the driver accuracy can be reduced, thereby achieving high-sensitivity and high-precision control at a relatively low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0026] Figure 1 A schematic diagram of a three-dimensional structure of a laser lighting device according to an embodiment;

[0027] Figure 2 A schematic diagram of a three-dimensional exploded structure of a laser lighting device according to an embodiment;

[0028] Figure 3 The figure is a schematic diagram of the structure of a laser lighting device in one direction according to an embodiment. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] like Figures 1 to 3As shown, it is a laser projection lamp 10 of an embodiment of the utility model, comprising: a laser source, a first reflection component and a second reflection component; the laser source is used to generate laser light parallel to a first direction; the first reflection component comprises a first reflection mirror 220 and a first driver 210, the first driver 210 has a first rotation output shaft, the first driver 210 is drivingly connected to the first reflection mirror 220 through the first rotation output shaft, the first driver 210 is used to drive the first reflection mirror 220 to rotate, and the axial direction of the first rotation output shaft is perpendicular to the first direction;

[0031] The second reflection assembly includes a second reflection mirror 320 and a second driver 310, wherein the second driver 310 has a second rotation output shaft, and the second driver 310 is drivingly connected to the second reflection mirror 320 via the second rotation output shaft, and the second driver 310 is used to drive the second reflection mirror 320 to rotate, and the axial direction of the second rotation output shaft is parallel to the first direction;

[0032] The first reflector 220 is used to reflect the laser light from the laser source to the second reflector 320 , and the second reflector 320 is used to reflect the laser light reflected by the first reflector 220 to the outside.

[0033] For ease of understanding, in each embodiment, the first direction is the X-axis direction, and the directions perpendicular to the X-axis are the Y-axis direction and the Z-axis direction. In this embodiment, the laser light generated by the laser source is directed toward the first reflector 220 in parallel with the first direction, and the first reflector 220 reflects the laser light to the second reflector 320. Since the first reflector 220 can rotate under the drive of the first driver 210, the angle between the first reflector 220 and the laser light parallel to the first direction can be adjusted. In this way, the position of the laser light reflected by the first reflector 220 falling on the second reflector 320 in the X-axis direction can be adjusted. In addition, the second reflector 320 can rotate under the drive of the second driver 310. Therefore, the angle between the second reflector 320 and the laser light reflected by the first reflector 220 can be adjusted. The position of the laser reflected from the first reflector 220 and the second reflector 320 falling on the projection target on the Z axis can be adjusted. In this way, the position of the laser on the projection target (such as a curtain or a curtain wall) on the X axis (horizontal direction) and the Z axis (vertical direction) can be adjusted by controlling the first reflector 220 and the second reflector 320. By adjusting the angles of the first reflector 220 and the second reflector 320 at a higher frequency, the position of the laser falling on the projection target changes at a high frequency. When the frequency of such changes is greater than the reaction time of the naked eye, the laser point on the projection target will form a laser line. In the eyes of the user, the position of the laser on the projection target will form a graphic or a simple pattern (imaging), for example, letters, numbers, patterns outlined by lines, etc. can be displayed.

[0034] In the above embodiment, by arranging reflectors in two mutually perpendicular directions, the laser is projected onto the target through reflection from the reflectors. Since the reflectors have high adjustment sensitivity and can amplify the movement amplitude through reflection from the reflectors, the reflectors can be made to make slight angle changes, which can make the position of the laser point projected on the target have a large change. In addition, since there is no need to control the movement of the light source but only the direction of the reflected laser light needs to be controlled, the requirements for the accuracy of the driver can be reduced, thereby achieving high-sensitivity and high-precision control at a relatively low cost.

[0035] In order to generate a laser parallel to the first direction, in one embodiment, the laser source includes a laser emitter 510 and a third reflecting component; the laser emitter 510 has a transmitting head, and the transmitting head emits a laser parallel to the second direction; the third reflecting component includes a third reflecting mirror 410, and the third reflecting mirror 410 is arranged adjacent to the transmitting head, and the third reflecting mirror 410 is used to reflect the laser emitted by the transmitting head to the first direction.

[0036] In this embodiment, the laser emitted by the laser emitter 510 is reflected by the third reflector 410 to form a laser of quality and the first direction. The reflection of the third reflector 410 can change the emission angle of the laser, so that the position of the laser emitter 510 and the first reflective component and the second reflective component can be flexibly adjusted, effectively utilizing the space and reducing the volume of the laser projection lamp 10.

[0037] In one embodiment, the second direction is perpendicular to the first direction. In this embodiment, the second direction is the Y-axis direction, and the first direction is the X-axis direction. In this embodiment, the angle θ between the third reflector 410 and the second direction is 45°, so that the incident angle of the laser emitter 510 on the third reflector 410 is 45°, and the exit angle is 45°, and the angle between the first direction and the third reflector 410 is 135°. By setting the third reflector 410 to form an angle of 45° with the second direction and an angle of 135° with the first direction, the second direction can be made perpendicular to the first direction.

[0038] In order to precisely control the rotation of the first reflector 220 and make the first reflector 220 have extremely high sensitivity, in one embodiment, the first driver 210 includes a first servo motor. In order to precisely control the rotation of the second reflector 320 and make the second reflector 320 have extremely high sensitivity, in one embodiment, the second driver 310 includes a second servo motor.

[0039] In this embodiment, the servo motor has the characteristics of high precision, high speed and fast response. Thus, by controlling the first servo motor and the second servo motor, the first reflector 220 and the second reflector 320 can quickly adjust the angle and accurately rotate to the required angle, thereby accurately imaging on the projection target.

[0040] In one embodiment, the distance between the first reflector 220 and the second reflector 320 is greater than the sum of the rotation radius of the first reflector 220 and the rotation radius of the second reflector 320, and the distance between the first reflector 220 and the second reflector 320 is less than the sum of the rotation diameter of the first reflector 220 and the rotation diameter of the second reflector 320.

[0041] In order to install and accommodate components such as the laser emitter 510, the first driver 210 and the second driver 310, in one embodiment, please combine Figure 1 and Figure 2 The laser projection lamp 10 also includes a shell 110 and a base plate 120, an installation cavity is formed between the shell 110 and the base plate 120, the laser emitter 510, the first driver 210, the second driver 310 and the third reflector 410 are arranged in the installation cavity, the laser emitter 510, the first driver 210, the second driver 310 and the third reflector 410 are arranged on the base plate 120, a light outlet 111 is opened on the shell 110, and the second reflector 320 is used to reflect the laser to the light outlet 111, so that the laser is emitted from the light outlet 111 to the outside.

[0042] In this embodiment, by assembling the shell 110 and the base plate 120, an installation cavity is formed inside, so that the laser emitter 510, the first driver 210, the first reflector 220, the second driver 310, the second reflector 320 and the third reflector 410 are arranged in the installation cavity, so that the laser projection lamp 10 is more integrated and easy to carry.

[0043] In one embodiment, the area of ​​the third reflector 410 is larger than the area of ​​the first reflector 220 and the area of ​​the second reflector 320. In this embodiment, the area of ​​the third reflector 410 is larger than the area of ​​the first reflector 220 and larger than the area of ​​the second reflector 320, which is conducive to better reflecting the laser of the laser emitter 510 to the first reflector 220.

[0044] In one embodiment, Figure 2As shown, the first reflection component also includes a first support frame 230, and the first driver 210 is arranged on the first support frame 230; in one embodiment, the second reflection component also includes a second support frame 330, and the second driver 310 is arranged on the second support frame 330; in one embodiment, the third reflection component also includes a third support frame 420, and the third reflector 410 is arranged on the third support frame 420, and the third support frame 420 is connected to the base plate 120 through a connecting member 440.

[0045] In this embodiment, the first driver 210 is fixed by the first support frame 230, and the second driver 310 is fixed by the second support frame, so that the first driver 210 and the second driver 310 can be stably installed in the housing 110. In addition, the third reflector 410 is installed by the third support frame 420, so that the third reflector 410 can be stably installed in the housing 110. In one embodiment, Figure 3 As shown, the third support frame 420 is provided with an adjustment hole, the base plate 120 is provided with a screw hole, the connecting member 440 is a screw, the screw passes through the connecting hole and is inserted into the screw hole, and the screw is screwed to the side wall of the screw hole, so that the third support frame 420 can be fixed on the base plate 120 by the screw, and after loosening the screw, the angle of the third support frame 420 can be adjusted, so that the reflection angle of the third reflector 410 can be adjusted.

[0046] In order to improve the structural stability of the first reflective component and the second reflective component, in one embodiment, Figure 2 As shown, the first support frame 230 and the second support frame 330 are fixedly connected. In this embodiment, by fixing the first support frame 230 and the second support frame 330, the first reflective assembly and the second reflective assembly can be relatively fixed, thereby improving the structural stability of the first reflective assembly and the second reflective assembly. In one embodiment, the first support frame 230 and the second support frame 330 are integrally formed. In this embodiment, the structure of the first support frame 230 and the second support frame 330 that are integrally formed is more stable.

[0047] In order to make the first driver 210 and the second driver 310 work more smoothly and eliminate unnecessary vibration during operation, in one embodiment, Figure 2As shown, a support plate 350 is provided on the bottom plate 120, a buffer pad 360 is provided on the support plate 350, and the first support frame 230 and the second support frame 330 are provided on the buffer pad 360. In this embodiment, the buffer pad 360 is fixed by the support plate 350, and the buffer pad 360 provides a buffer for the first support frame 230 and the second support frame 330, which can provide a buffer for the first driver 210 and the second driver 310, eliminate the unnecessary vibration generated by the first driver 210 and the second driver 310 when working, and thus make the image projected on the projection target more accurate.

[0048] In one embodiment, Figure 2 and Figure 3 As shown, the laser projection lamp 10 also includes a battery module 520 and a control module. The battery module 520 is electrically connected to the control module, the first driver 210, the second driver 310 and the laser emitter 510. The control module is electrically connected to the first driver 210, the second driver 310 and the laser emitter 510 respectively.

[0049] In this embodiment, the battery module 520 is used to power the control module, the first driver 210, the second driver 310 and the laser emitter 510. The control module includes a control board and a control chip disposed on the control board. The control board is electrically connected to the first driver 210, the second driver 310 and the laser emitter 510. The control chip may be a single chip microcomputer. The control chip is connected to the first driver 210, the second driver 310 and the laser emitter 510 through the control board to realize the control of the first driver 210, the second driver 310 and the laser emitter 510. For example, the control chip can control the laser emitter 510 to emit light of various colors, such as red light, green light, blue light, etc., and can control the laser emitter 510 to emit light of a desired color at a preset time, and control the first driver 210 and the second driver 310 to rotate to a preset angle at a preset time, so that graphics of different shapes and colors can be formed on the projection target.

[0050] Traditional projectors are costly, bulky, heavy, inconvenient to carry, not waterproof, and have poor playability and interactivity. They can only be used in specific environments. The laser projection lamp of the present application optimizes the structure of each module and the overall lamp, greatly reducing the volume and weight, and solving the problem that the lamp cannot be portable; in terms of the laser effect, traditional products have poor playability and can only be professionally controlled. Only professionals can control them. To address this problem, the laser projection lamp of the present application is also provided with a wireless communication module. For example, the wireless communication module can be a Bluetooth module or a 5G module. In this way, users can communicate with the laser projection lamp through the software on the mobile phone APP and WeChat platform to realize the control of the laser, making the laser changes richer and more widely used; finally, through the optimized modules and the entire lamp, while improving various performances, it also reduces costs.

[0051] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A laser projection lamp, characterized in that: include: A laser source, a first reflecting component and a second reflecting component; The laser source is used to generate laser light parallel to the first direction; The first reflection assembly includes a first reflector and a first driver, the first driver has a first rotation output shaft, the first driver is drivingly connected to the first reflector via the first rotation output shaft, the first driver is used to drive the first reflector to rotate, and the axial direction of the first rotation output shaft is perpendicular to the first direction; The second reflection assembly includes a second reflection mirror and a second driver, the second driver has a second rotation output shaft, the second driver is drivingly connected to the second reflection mirror through the second rotation output shaft, the second driver is used to drive the second reflection mirror to rotate, and the axial direction of the second rotation output shaft is parallel to the first direction; The first reflecting mirror is used to reflect the laser light from the laser source to the second reflecting mirror, and the second reflecting mirror is used to reflect the laser light reflected by the first reflecting mirror to the outside.

2. The laser projection lamp according to claim 1, characterized in that: The laser source includes a laser emitter and a third reflective component; The laser transmitter has a transmitter head, and the transmitter head emits laser light parallel to the second direction; The third reflective component includes a third reflective mirror, which is disposed adjacent to the emitting head and is used to reflect the laser emitted by the emitting head to a first direction.

3. The laser projection lamp according to claim 2, characterized in that: The second direction is perpendicular to the first direction.

4. The laser projection lamp according to claim 1, characterized in that: The first driver includes a first servo motor.

5. The laser projection lamp according to claim 1, characterized in that: The second driver includes a second servo motor.

6. The laser projection lamp according to claim 1, characterized in that: The distance between the first reflector and the second reflector is greater than the sum of the rotation radius of the first reflector and the rotation radius of the second reflector, and the distance between the first reflector and the second reflector is less than the sum of the rotation diameter of the first reflector and the rotation diameter of the second reflector.

7. The laser projection lamp according to claim 2, characterized in that: It also includes a shell and a base plate, an installation cavity is formed between the shell and the base plate, the laser emitter, the first driver, the second driver and the third reflector are arranged in the installation cavity, the laser emitter, the first driver, the second driver and the third reflector are arranged on the base plate, a light outlet is opened on the shell, and the second reflector is used to reflect the laser to the light outlet so that the laser is emitted from the light outlet to the outside.

8. The laser projection lamp according to claim 2, characterized in that: An area of ​​the third reflector is larger than an area of ​​the first reflector and an area of ​​the second reflector.

9. The laser projection lamp according to claim 7, characterized in that: The first reflective component, the second reflective component and the third reflective component are configured as follows: The first reflection component further includes a first support frame, and the first driver is disposed on the first support frame; and / or The second reflective assembly further includes a second support frame, and the second driver is disposed on the second support frame; and / or The third reflection assembly also includes a third support frame, the third reflector is arranged on the third support frame, and the third support frame is connected to the bottom plate through a connecting member.

10. The laser projection lamp according to claim 2, characterized in that: It also includes a battery module and a control module. The battery module is electrically connected to the control module, the first driver, the second driver and the laser emitter. The control module is electrically connected to the first driver, the second driver and the laser emitter respectively.

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