Adjustment mechanism of reflector and laser projection equipment

Abstract

This application discloses an adjustment mechanism for a reflector and a laser projection device, belonging to the field of projection technology. The application provides an adjustment mechanism for a reflector, which is installed within a laser projection device. The adjustment mechanism includes a housing, a support, and an adjustment frame. When the position of the reflector needs to be adjusted, the operator can control the adjustment frame to rotate within the adjustment groove of the housing, thereby causing the support to rotate about a first axis parallel to the reflective surface of the reflector. The operator can also control the adjustment frame to move within the adjustment groove, thereby causing the first axis of the support to swing. In this way, the position of the reflector can be adjusted, ensuring that the reflector is stably positioned to effectively reflect the laser beam provided by the light source assembly to the optomechanical assembly. This eliminates the need to disassemble and reassemble the reflector from the laser projection device, effectively simplifying the process of adjusting the reflector's position.

Description

[0001] This application claims priority to Chinese Patent Application No. 202211731085.1, filed on December 30, 2022, entitled "Adjustment Mechanism for a Reflector and Laser Projection Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of projection technology, and in particular to an adjustment mechanism for a reflector and a laser projection device. Background Technology

[0003] A laser projection system includes a projection screen and a laser projection device. The laser projection device can project images onto the projection screen to achieve functions such as video playback.

[0004] Current laser projection equipment typically includes a projection lens, an optical-mechanical assembly, and a light source assembly. To reduce the size of the laser projection equipment, a reflector is usually placed between the light source assembly and the optical-mechanical assembly. This reflector is used to reflect the laser beam provided by the light source assembly toward the optical-mechanical assembly; the optical-mechanical assembly is used to modulate the laser beam into an image signal to form a modulated beam, and the modulated beam can be projected toward the projection lens; the projection lens is used to project the modulated beam onto the projection screen.

[0005] Currently, reflectors are typically fixed to the housing of laser projection equipment using multiple screws. When the assembly error of the reflector is significant, it is necessary to first remove the screws used to fix the reflector, then adjust the position of the reflector to the required position, and finally re-fix the reflector to the housing using multiple screws. However, this method of adjusting the reflector is relatively complex and inefficient. Summary of the Invention

[0006] This application provides an adjustment mechanism for a reflector and a laser projection device. It solves the problems of complex adjustment methods and low adjustment efficiency of existing reflectors. The technical solution is as follows:

[0007] On the one hand, an adjustment mechanism for a reflector is provided, the adjustment mechanism being installed inside a laser projection device, the adjustment mechanism comprising: a housing, a bracket, and an adjustment frame;

[0008] The box body has a receiving cavity and a through groove communicating with the receiving cavity, and the side of the box body where the through groove is provided has an adjustment groove;

[0009] The bracket is located within the receiving cavity and is movably connected to the box body;

[0010] At least a portion of the adjusting frame is located within the adjusting groove, and the adjusting frame is able to pass through the through groove and be fixedly connected to the support. The adjusting frame is configured to: rotate within the adjusting groove to drive the support to rotate about a first axis parallel to the reflecting surface of the reflector; and / or move within the adjusting groove to drive the first axis of the support to swing relative to the axis of the through groove.

[0011] On the other hand, a laser projection device is provided, including: an optical engine assembly and a light source assembly, and an adjustment mechanism for a reflector located between the optical engine assembly and the light source assembly, wherein the adjustment mechanism is the adjustment mechanism described above.

[0012] The beneficial effects of the technical solutions provided in this application include at least the following:

[0013] An adjustment mechanism for a reflector is disclosed. This mechanism is installed within a laser projection device and includes a housing, a support, and an adjustment bracket. When the reflector's position needs adjustment, the operator can control the adjustment bracket within the housing to rotate within an adjustment groove. This rotation causes the support to rotate about a first axis parallel to the reflector's reflective surface. The operator can also control the adjustment bracket to move within the adjustment groove, causing the first axis of the support to oscillate relative to the axis of the through-slot in the housing. This allows for positional adjustment of the reflector, ensuring it is stably positioned to effectively reflect the laser beam from the light source assembly to the optomechanical assembly. This eliminates the need to disassemble and reassemble the reflector from the laser projection device; simply adjusting the adjustment bracket within the adjustment groove simplifies the adjustment process and improves efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of an adjustment mechanism for a reflector provided in an embodiment of this application;

[0016] Figure 2 This is a schematic diagram of the structure of a bracket provided in an embodiment of this application;

[0017] Figure 3 yes Figure 1 An exploded view of the regulating mechanism is shown;

[0018] Figure 4 This is a schematic diagram of another adjustment mechanism provided in an embodiment of this application;

[0019] Figure 5 This is a schematic diagram illustrating the cooperation between an adjustment frame and an adjustment tool provided in an embodiment of this application;

[0020] Figure 6 This is a schematic diagram of another adjusting mechanism provided in the embodiments of this application;

[0021] Figure 7 This is a schematic diagram illustrating the connection relationship between an adjustment frame and a rotating adjustment component according to an embodiment of this application;

[0022] Figure 8 This is a schematic diagram illustrating another connection relationship between the adjusting bracket and the rotating adjusting component provided in an embodiment of this application;

[0023] Figure 9 This is a schematic diagram illustrating the connection relationship between a swing adjustment component and a box body according to an embodiment of this application;

[0024] Figure 10 This is a schematic diagram of another adjusting mechanism provided in the embodiments of this application;

[0025] Figure 11 This is a schematic diagram of another support structure provided in an embodiment of this application;

[0026] Figure 12 yes Figure 10 The cross-sectional view of the adjustment mechanism is shown. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0028] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of an adjustment mechanism for a reflector provided in an embodiment of this application. The adjustment mechanism 000 is used to install inside a laser projection device and to adjust the position of the reflector 001 installed inside the laser projection device. The adjustment mechanism 000 may include: a housing 100, a bracket 200, and an adjustment frame 300.

[0029] The housing 100 in the adjustment mechanism 000 may have a receiving cavity 100a and a through groove 100b communicating with the receiving cavity 100a. The side of the housing 100 where the through groove 100b is provided may have an adjustment groove 100c.

[0030] The bracket 200 in the adjustment mechanism 000 can be located within the receiving cavity 100a of the housing 100 and is movably connected to the housing 100. For a clearer view of the structure of the bracket 200, please refer to [reference needed]. Figure 2 , Figure 2 This is a schematic diagram of a bracket provided in an embodiment of this application. The bracket 200 in the adjustment mechanism 000 is used to support the reflector 001. For example, the reflector 001 can be fixed to the bracket 200 by dispensing adhesive.

[0031] At least a portion of the adjusting bracket 300 in the adjusting mechanism 000 can be located within the adjusting groove 100c, which provides a clearer view of the structure of the adjusting mechanism 000. Please refer to [reference needed]. Figure 2 and Figure 3 , Figure 3 yes Figure 1 An exploded view of the adjustment mechanism is shown. The adjustment bracket 300 can be fixedly connected to the bracket 200 in the adjustment mechanism 000 through the through slot 100b of the housing 100. In one possible implementation, the adjustment bracket 300 and the bracket 200 can be an integral structure, that is, they are integrally molded; in another possible implementation, a locking structure such as screws or bolts or glue can be used to fix the adjustment bracket 300 to one end of the bracket 200.

[0032] The adjustment bracket 300 in the adjustment mechanism 000 can be configured to: rotate within the adjustment groove 100c of the housing 100 to drive the support 200 in the adjustment mechanism 000 to rotate about a first axis L1 parallel to the reflecting surface of the reflector 001; and / or move within the adjustment groove 100c to drive the first axis L1 of the support 200 to swing relative to the axis of the through groove 100b.

[0033] It should be noted that after the adjustment mechanism 000 is fixed inside the laser projection device, the reflector 001 supported by the bracket 200 in the adjustment mechanism 000 is located between the optical-mechanical component and the light source component inside the laser projection device. Because the optical-mechanical component and the light source component inside the laser projection device are prone to assembly errors, and the reflector 001 located between them is also prone to assembly errors, the laser beam provided by the light source component may not be entirely directed to the reflector 001, and the laser beam reflected by the reflector 001 may also not be entirely directed to the optical-mechanical component. Therefore, to improve the light output efficiency of the laser projection device, the position of the reflector 001 located between the optical-mechanical component and the light source component needs to be adjusted by the adjustment mechanism 000 to ensure that the laser beam provided by the light source component can enter the optical-mechanical component well after reflection by the reflector 001, thereby ensuring a better display effect of the projected image projected by the projection lens inside the laser projection device.

[0034] For example, such as Figure 1 , Figure 2 and Figure 3 As shown, when the position of the reflector 001 needs to be adjusted, the operator can control the adjustment bracket 300 in the adjustment mechanism 000 to rotate within the adjustment groove 100c of the housing 100, thereby causing the support 200 in the adjustment mechanism 000 to rotate around the first axis L1 parallel to the reflecting surface of the reflector 001. The operator can also control the adjustment bracket 300 to move within the adjustment groove 100c, thereby causing the first axis L1 of the support 200 to swing relative to the axis of the through groove 100b. In this way, the position of the reflector 001 can be adjusted, ensuring that the reflector 001 is stably positioned to reflect the laser beam provided by the light source assembly to the optomechanical assembly effectively. This eliminates the need to disassemble and reassemble the reflector 001 from the laser projection equipment; simply adjusting the position of the adjustment bracket 300 within the adjustment groove 100c simplifies the adjustment process and improves the efficiency of the reflector 001 position adjustment.

[0035] In summary, this application provides an adjustment mechanism for a reflector, which is installed within a laser projection device. The adjustment mechanism includes a housing, a support, and an adjustment bracket. When the position of the reflector needs to be adjusted, the operator can control the adjustment bracket within the housing to rotate within an adjustment groove, thereby rotating the support around a first axis parallel to the reflective surface of the reflector. The operator can also control the adjustment bracket to move within the adjustment groove, causing the first axis of the support to swing relative to the axis of the through slot in the housing. This allows for adjustment of the reflector's position, ensuring it is stably positioned to effectively reflect the laser beam from the light source assembly to the optomechanical assembly. This eliminates the need to disassemble and reassemble the reflector from the laser projection device; simply adjusting the adjustment bracket within the adjustment groove simplifies the adjustment process and improves efficiency.

[0036] In the embodiments of this application, please refer to Figure 4 , Figure 4This is a schematic diagram of another adjustment mechanism provided in an embodiment of this application. The adjustment mechanism 000 may further include an adjustment tool 400 detachably connected to the adjustment frame 300 in the adjustment mechanism 000. The adjustment tool 400 may be configured to drive the adjustment frame 300 to move within the adjustment groove 100c. In this way, the operator can more conveniently control the movement of the adjustment frame 300 within the adjustment groove 100c through the adjustment tool 400. Here, since there are various possibilities for the adjustment tool 400 that the operator can use, there are also various possible ways to implement the movement of the adjustment frame 300 within the adjustment groove 100c by the adjustment tool 400.

[0037] In one possible implementation, the adjustment tool 400 can be a clamp, which allows the operator to clamp the adjustment frame 300 and then drive the adjustment frame 300 to rotate or move within the adjustment groove 100c.

[0038] In another possible implementation, such as Figure 5 As shown, Figure 5 This is a schematic diagram illustrating the cooperation between an adjustment frame and an adjustment tool according to an embodiment of this application. The adjustment frame 300 may have an adjustment hole O on the side opposite to the support 200. The cross-sectional shape of the adjustment hole O can be any non-circular shape; for example, the cross-sectional shape of the adjustment hole O can be hexagonal. In this case, the adjustment tool 400 can be a wrench with an end that matches the shape of the adjustment hole O. The operator can engage the end of the adjustment tool 400 with the adjustment hole O on the adjustment frame 300, thereby allowing the adjustment frame 300 to rotate or move within the adjustment groove 100c.

[0039] It should be noted that, in the above two possible implementations, it is difficult for the operator to control the adjustment range of the adjustment tool 400. Therefore, when the operator moves the adjustment frame 300 within the adjustment groove 100c using the adjustment tool 400 in the above two possible implementations, the adjustment accuracy of the reflector 001 is not high. In a preferred possible implementation:

[0040] like Figure 6 As shown, Figure 6This is a schematic diagram of another adjustment mechanism provided in this application embodiment. The adjustment tool 400 in the adjustment mechanism 000 may include a rotation adjustment member 401 and a swing adjustment member 402. The swing adjustment member 402 can be closer to the adjustment frame 300 than the rotation adjustment member 401, and the rotation adjustment member 401 is detachably connected to the adjustment frame 300. In this way, the operator can control the adjustment frame 300 to rotate within the adjustment groove 100c by rotating the adjustment member 401, thereby causing the adjustment frame 300 to drive the support 200 in the adjustment mechanism 000 to rotate around the first axis L1 parallel to the reflecting surface of the reflector 001; the operator can also drive the adjustment frame 300 to move within the adjustment groove 100c by swinging the adjustment frame 300, thereby causing the first axis L1 of the support 200 to swing relative to the axis of the through groove 100b. Furthermore, since the rotating adjustment component 401 can be detachably connected to the adjustment frame 300, the operator can remove the rotating adjustment component 401 after adjusting the adjustment frame 300 to a suitable position, thus ensuring that the laser projection equipment is relatively small in size.

[0041] In this application, the connection between the adjusting bracket 300 and the rotating adjusting member 401 can also be implemented in various ways. The following two optional implementation methods are illustrated as examples in this application embodiment:

[0042] For the first optional implementation method, please refer to... Figure 7 , Figure 7 This is a schematic diagram illustrating the connection between an adjusting frame and a rotating adjusting member according to an embodiment of this application. The adjusting frame 300 may have an adjusting hole O on the side facing away from the support 200. The cross-sectional shape of the adjusting hole O can be any non-circular shape; for example, the cross-sectional shape of the adjusting hole O can be hexagonal. The rotating adjusting member 401 has an adjusting boss 401a on the side near the adjusting frame 300 that engages with the adjusting hole O. The shape of the adjusting boss 401a matches the shape of the adjusting hole O. Thus, the adjusting boss 401a of the rotating adjusting member 401 can be inserted into the adjusting hole O of the adjusting frame 300, allowing the rotating adjusting member 401 to engage with the adjusting frame 300. In this way, the operator can rotate the adjusting member 401 to drive the adjusting frame 300 to rotate, thereby causing the adjusting frame 300 to drive the support 200, which is fixedly connected to it, to rotate.

[0043] For the second optional implementation method, please refer to... Figure 8 , Figure 8This is a schematic diagram illustrating another connection relationship between the adjusting frame and the rotating adjusting member provided in this application embodiment. The adjusting frame 300 may have a snap-fit ​​protrusion K1 on the side facing away from the support 200. The cross-sectional shape of the snap-fit ​​protrusion K1 can be any non-circular shape; for example, the cross-sectional shape of the snap-fit ​​protrusion K1 is hexagonal. The rotating adjusting member 401 has a snap-fit ​​groove K2 on the side near the adjusting frame 300 that snaps into the adjusting hole O. The shape of the snap-fit ​​groove K2 matches the shape of the adjusting hole O. Thus, the operator can snap the snap-fit ​​groove K2 of the rotating adjusting member 401 into the snap-fit ​​protrusion K1 of the adjusting frame 300, allowing the rotating adjusting member 401 to snap into the adjusting frame 300. In this way, the operator can rotate the adjusting member 401 to drive the adjusting frame 300 to rotate, thereby causing the adjusting frame 300 to drive the support 200, which is fixedly connected to it, to rotate.

[0044] Optional, please refer to Figure 7 and Figure 8 The rotating adjustment member 401 may further include a rotating adjustment ring 401a and a knob 401b fixed inside the rotating adjustment ring 401a. The rotating adjustment ring 401a can abut against the end face 402a of the swing adjustment member 402 away from the adjustment frame 300. The knob 401b has an adjustment boss 401a on the side near the adjustment frame 300. In this way, the operator can better control the rotating adjustment member 401 to drive the adjustment frame 300 to rotate by using the knob 401b in the rotating adjustment member 401. And since the rotating adjustment ring 401a can abut against the end face 402a of the swing adjustment member 402 away from the adjustment frame 300, the undesirable situation where the swing adjustment member 402 generates resistance to the movement of the rotating adjustment ring 401a during the operation of the rotating adjustment ring 401a by the operator can be avoided.

[0045] In the embodiments of this application, please refer to Figure 8 and Figure 9 , Figure 9 This is a schematic diagram illustrating the connection relationship between a swing adjustment member and a housing according to an embodiment of this application. The end face 402b of the swing adjustment member 402, facing away from the rotation adjustment member 401, abuts against the bottom surface D of the adjustment groove 100c. The swing adjustment member 402 is annular, and the axis of the inner ring of the swing adjustment does not coincide with the axis of the outer ring. The adjustment frame 300 abuts against the inner wall of the swing adjustment member 402. The swing adjustment member 402 is configured such that when it rotates around the axis of the outer ring, it drives the adjustment frame 300 to move within the adjustment groove 100c. Thus, the operator can control the rotation of the swing adjustment member 402 to move the adjustment frame 300 within the adjustment groove 100c, thereby allowing the first axis L1 of the support 200 to swing relative to the axis of the through groove 100b.

[0046] For example, such as Figure 9 As shown, since the axis of the inner ring of the swing adjustment member 402 does not coincide with the axis of the outer ring, the swing adjustment member 402 can be an eccentric ring, meaning the thickness of the sidewall of the swing adjustment member 402 gradually changes. Furthermore, since the adjusting frame 300 abuts against the inner wall of the swing adjustment member 402, the thickness of the sidewall of the swing adjustment member 402 in contact with the adjusting frame 300 gradually changes as the swing adjustment member 402 rotates around the axis of the outer ring. Thus, when the swing adjustment member 402 rotates around the axis of the outer ring, the sidewall of the swing adjustment member 402 can apply a driving force to the adjusting frame 300, allowing the adjusting frame 300 to move within the adjusting groove 100c.

[0047] Optionally, the adjusting frame 300 can be strip-shaped, and its length direction is perpendicular to the reflecting surface of the reflector 001. When the swing adjusting member 402 rotates around the axis of the outer ring, the adjusting frame 300 moves along its length direction under the drive of the swing adjusting member 402. In this case, the adjusting frame 300 can drive the support 200 to rotate around a second axis L2 that is parallel to the reflecting surface of the reflector 001 and perpendicular to the first axis L1.

[0048] For example, since the adjusting frame 300 is strip-shaped, its two short sides can abut against the inner wall of the swing adjusting member 402. When the swing adjusting member 402 rotates around the axis of the outer ring, the inner wall of the rotating adjusting member 401 can apply a driving force perpendicular to the reflecting surface of the reflector 001 to the two short sides, thereby causing the adjusting frame 300 to move in a direction perpendicular to the reflecting surface of the reflector 001, that is, along the length direction of the adjusting frame 300. Here, the two short sides of the adjusting frame 300 are arc-shaped and match the shape of the inner wall of the rotating adjusting member 401. Thus, when the swing adjusting member 402 rotates around the axis of the outer ring, the inner wall of the rotating adjusting member 401 can apply a driving force to the adjusting frame 300 more evenly, allowing the adjusting frame 300 to move stably along its length direction.

[0049] In the embodiments of this application, please refer to Figure 10 , Figure 10 This is a schematic diagram of another adjustment mechanism provided in an embodiment of this application. The adjustment mechanism 000 may further include a fastening adhesive 500, which can be configured to bond the adjustment frame 300 and the housing 100 after the support 200 rotates around the second axis L2. In this way, the adjustment frame 300 cannot move within the adjustment groove 100c, ensuring that the support 200 will not be misaligned due to external environmental interference, so that the reflector 001 can more stably maintain the position that can better reflect the laser beam provided by the light source component to the optomechanical component, thereby ensuring a better projection image effect projected by the projection lens.

[0050] For example, the operator can rotate the adjusting member 401 to rotate the adjusting frame 300, thereby positioning the reflector 001 carried by the bracket 200 on the first axis L1. The operator can also rotate the bracket 200 around the second axis L2 by swinging the adjusting member 402, thereby positioning the reflector 001 on the second axis L2 as well. The operator can then remove the rotating adjusting member 401 from the adjusting hole O of the adjusting frame 300 and remove the swinging adjusting member 402 from the groove of the housing 100. In this case, the operator can use the fastening adhesive 500 to bond the adjusting frame 300 to the housing 100, thus bonding the adjusting frame 300 and the housing 100 into a single unit.

[0051] Optionally, after the operator controls the rotation adjustment component 401 and the swing adjustment component 402 to ensure that the reflector 001 is in a suitable position on both the first axis L1 and the second axis L2, the operator can use adhesive to bond the rotation adjustment component 401, the swing adjustment component 402 and the adjustment frame 300 to the box body 100, so that the rotation adjustment component 401, the swing adjustment component 402 and the adjustment frame 300 are bonded to the box body 100 as a whole.

[0052] In the embodiments of this application, please refer to Figure 11 and Figure 12 , Figure 11 This is a schematic diagram of another support structure provided in an embodiment of this application. Figure 12 yes Figure 10 The cross-sectional view of the adjustment mechanism is shown. The bracket 200 may include: a bracket body 201 for supporting the reflector 001, and a first support member 202 and a second support member 203 respectively fixedly connected to both ends of the bracket body 201.

[0053] The first support member 202 is fixedly connected to the adjustment frame 300. Thus, when the adjustment frame 300 moves or rotates within the adjustment groove 100c, it can drive the first support frame to rotate around the first axis L1 or the second axis L2, thereby driving the bracket body 201 to rotate around the first axis L1 or the second axis L2.

[0054] For example, such as Figure 12As shown, the connection point between the first support member 202 and the adjusting frame 300 can be slightly higher than the bottom surface D of the adjusting groove 100c, so that the bottom surface F of the adjusting frame 300 is slightly higher than the bottom surface D of the adjusting groove 100c. This avoids the situation where, when the adjusting frame 300 moves within the adjusting groove 100c, the bottom surface F of the adjusting frame 300 comes into contact with the bottom surface D of the adjusting groove 100c, preventing the adjusting frame 300 from properly driving the first support member 202 to rotate around the second axis L2. Furthermore, since the bottom surface F of the adjusting frame 300 is slightly higher than the bottom surface D of the adjusting groove 100c, the adjusting frame 300 will not experience resistance from the adjusting groove 100c when it rotates within the adjusting groove 100c. This allows the operator to more easily control the rotation of the adjusting frame 300 within the adjusting groove 100c.

[0055] It should be noted that when the adjusting frame 300 moves or rotates within the adjusting groove 100c, the first support member 202 can provide good support for the bracket 200, thereby ensuring that the bracket 200 can rotate more stably around the first axis L1 and the second axis L2 under the drive of the adjusting frame 300.

[0056] In this application, as Figure 12 As shown, the inner wall of the receiving cavity 100a has a limiting groove 100d that is opposite to the through groove 100b of the box body 100. The second support member 203 is located within the limiting groove 100d, and the volume of the limiting groove 100d is larger than the volume of the second support member 203. In this way, it can be ensured that when the adjusting frame 300 moves or rotates within the adjusting groove 100c, the second support member 203 can move within the limiting groove 100d.

[0057] For example, when the adjusting frame 300 moves or rotates within the adjusting groove 100c, the limiting groove 100d provides good support to the bracket 200 through the second support member 203, thereby ensuring that the bracket 200 can rotate more stably around the first axis L1 and the second axis L2 under the drive of the adjusting frame 300. Here, the limiting groove 100d can be an arc-shaped groove, and the shape of the second support member 203 can also be arc-shaped. Since the volume of the limiting groove 100d is larger than the volume of the second support member 203, it can avoid the undesirable situation where the second support member 203 gets stuck with the limiting groove 100d when it moves within the limiting groove 100d, causing the bracket 200 to be unable to rotate around the second axis L2.

[0058] Optional, such as Figure 12As shown, the adjustment mechanism 000 may further include: a fastener 600, the bottom of the limiting groove 100d may have a positioning hole M, and the side of the second support member 203 that contacts the limiting groove 100d may have a mounting hole N. Before adjusting the position of the bracket 200, the operator can pass the fastener 600 in the adjustment mechanism 000 through the positioning hole M and keep it connected to the second support member 203.

[0059] For example, the mounting hole N of the second support member 203 can be a threaded hole, and the fastener 600 can have a screw that matches the mounting hole N. The length of the screw is greater than or equal to the sum of the depth of the mounting hole N and the depth of the positioning hole M. In this way, the screw of the fastener 600 can be threadedly connected to the corresponding second support member 203 after passing through the corresponding positioning hole M.

[0060] Thus, the fastener 600 can maintain a connection with the second support member 203 through threaded engagement. When it is necessary to adjust the position of the reflector 001 located in the receiving cavity 100a of the housing 100, it is necessary to ensure that the fastener 600 does not apply a clamping force to the housing. In this case, the operator can use the adjusting bracket 300 to drive the first support member 202 to rotate around the first axis L1 and the second axis L2, thereby allowing the first support member 202 to drive the bracket body 201 to rotate around the first axis L1 and the second axis L2, so that the bracket 200 can drive the reflector 001 it carries to rotate around the first axis L1 and the second axis L2. In this way, the position of the reflector 001 located in the receiving cavity 100a can be adjusted.

[0061] After adjusting the position of the reflector 001 located within the receiving cavity 100a, the fastener 600 can be moved toward the housing 100 by screwing it in until the fastener 600 is tightened, so that one side of the fastener 600 is tightly pressed against the housing 100, and the fastener 600 can apply sufficient clamping force to the housing 100, thereby making the second support frame tightly pressed against the bottom of the limiting groove 100d of the housing 100. In this way, it can be ensured that the fastener 600 can fix the bracket 200 and the reflector 001 carried by the bracket 200 within the receiving cavity 100a, thereby allowing the reflector 001 to be stably installed in the designated position.

[0062] Optionally, after adjusting the position of the reflector 001 located in the receiving cavity 100a, the fastener 600 can be fixedly connected to the housing 100 by applying adhesive. Since the fastener 600 is threadedly connected to the second support member 203, the fastener 600 can fix the bracket 200 and the reflector 001 carried by the bracket 200 in the receiving cavity 100a.

[0063] In the embodiments of this application, please refer to Figure 8 and Figure 10 The adjustment mechanism 000 may further include a plurality of limiting posts 700 fixed within the receiving cavity 100a, each limiting post 700 being distributed on the side of the support body 201 facing away from the reflector 001. Since each limiting post 700 is distributed on the side of the support body 201 facing away from the reflector 001, the limiting posts 700 can limit the position of the support body 201.

[0064] For example, during the process of the operator controlling the adjustment frame 300 to drive the support 200 to rotate, when the support 200 is in its extreme position within the receiving cavity 100a, that is, when the support body 201 is in contact with the limiting post 700, the adjustment frame 300 will be unable to rotate due to the resistance from the limiting post 700. Thus, the rotation range of the adjustment frame 300 driving the support 200 can be controlled by the limiting post 700, thereby ensuring that the position of the reflector 001 is adjusted within a certain range. This avoids a larger positional deviation of the reflector 001 due to an excessively large adjustment range, improving the efficiency of adjusting the position of the reflector 001.

[0065] In summary, this application provides an adjustment mechanism for a reflector, which is installed within a laser projection device. The adjustment mechanism includes a housing, a support, and an adjustment bracket. When the position of the reflector needs to be adjusted, the operator can control the adjustment bracket within the housing to rotate within an adjustment groove, thereby rotating the support around a first axis parallel to the reflective surface of the reflector. The operator can also control the adjustment bracket to move within the adjustment groove, causing the first axis of the support to swing relative to the axis of the through slot in the housing. This allows for adjustment of the reflector's position, ensuring it is stably positioned to effectively reflect the laser beam from the light source assembly to the optomechanical assembly. This eliminates the need to disassemble and reassemble the reflector from the laser projection device; simply adjusting the adjustment bracket within the adjustment groove simplifies the adjustment process and improves efficiency.

[0066] This application embodiment also provides a projection device, which may include: an optical engine assembly and a light source assembly, and an adjustment mechanism 000 for a reflector located between the optical engine assembly and the light source assembly. The adjustment mechanism 000 is the adjustment mechanism 000 described above. The light source assembly is used to provide a laser beam, and the adjustment mechanism of the reflector is used to reflect the laser beam provided by the light source assembly to the optical engine assembly. The optical engine assembly is used to modulate the laser beam reflected from the reflector into an image beam. Here, the adjustment mechanism 000 can be the adjustment mechanism 000 in the above embodiment. For example, this adjustment mechanism 000 can be... Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 or Figure 10 The adjustment mechanism 000 is shown.

[0067] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0068] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An adjustment mechanism for a reflector, characterized in that, The adjustment mechanism is used to be installed inside the laser projection equipment, and the adjustment mechanism includes: a housing, a bracket, an adjustment frame, and an adjustment tool; The box body has a receiving cavity and a through groove communicating with the receiving cavity, and the side of the box body where the through groove is provided has an adjustment groove; The bracket is located within the receiving cavity and is movably connected to the box body; At least a portion of the adjusting frame is located within the adjusting groove, and the adjusting frame can pass through the through groove and be fixedly connected to the bracket; The adjustment tool is detachably connected to the adjustment frame, and the adjustment tool is configured to: drive the adjustment frame to rotate within the adjustment groove, thereby driving the bracket to rotate about a first axis parallel to the reflecting surface of the reflector; and / or, move within the adjustment groove, thereby driving the first axis of the bracket to swing relative to the axis of the through groove. The adjustment tool includes a rotation adjustment component and a swing adjustment component, wherein the swing adjustment component is closer to the adjustment frame than the rotation adjustment component, and the rotation adjustment component is detachably connected to the adjustment frame. The adjusting frame has an adjusting hole on the side away from the support, and the cross-sectional shape of the adjusting hole is any non-circular shape; the rotating adjusting component includes a rotating adjusting ring and a knob fixed in the rotating adjusting ring. The rotating adjusting ring abuts against the end face of the swing adjusting component away from the adjusting frame. The knob has an adjusting boss on the side near the adjusting frame that engages with the adjusting hole, and the shape of the adjusting boss matches the shape of the adjusting hole.

2. The adjusting mechanism according to claim 1, characterized in that, The end face of the swing adjustment component facing away from the rotation adjustment component abuts against the bottom surface of the adjustment groove, and the swing adjustment component is ring-shaped, with the axis of the inner ring of the swing adjustment not coinciding with the axis of the outer ring. The adjusting frame abuts against the inner wall of the swing adjusting member, and the swing adjusting member is configured to drive the adjusting frame to move within the adjusting groove when rotating around the axis of the outer ring.

3. The adjusting mechanism according to claim 2, characterized in that, The adjusting frame is strip-shaped, and its length direction is perpendicular to the reflective surface. When the swing adjusting member rotates around the axis of the outer ring, the adjusting frame moves along its length direction under the drive of the swing adjusting member.

4. The adjusting mechanism according to any one of claims 1 to 3, characterized in that, The bracket includes: a bracket body for supporting the reflector, and a first support member and a second support member respectively fixedly connected to both ends of the bracket body; The first support member is fixedly connected to the adjustment frame, the inner wall of the receiving cavity has a limiting groove that is opposite to the through groove, the second support member is located in the limiting groove, and the volume of the limiting groove is greater than the volume of the second support member.

5. The adjusting mechanism according to claim 4, characterized in that, The adjustment mechanism further includes: multiple limiting posts fixed in the receiving cavity, each of the limiting posts being distributed on the side of the bracket body away from the reflector.

6. A laser projection device, characterized in that, include: An optomechanical assembly and a light source assembly, and an adjustment mechanism for a reflector located between the optomechanical assembly and the light source assembly, wherein the adjustment mechanism is the adjustment mechanism according to any one of claims 1 to 5.

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