Galvanometer slide glass, galvanometer and ray machine

Abstract

The utility model relates to a galvanometer slide glass, and the slide glass comprises a deflection sheet which is used for bearing and fixing a lens; the plurality of connecting arms are arranged on the periphery of the deflection sheet in a surrounding manner, and each connecting arm is connected with the deflection sheet; the supporting frame is at least arranged on the side, away from the deflection piece, of one connecting arm and connected with the corresponding connecting arm. In at least one direction of a first direction and a second direction which are perpendicular to each other, the length of the supporting frame is larger than that of the corresponding connecting arm, and the first direction and the second direction are parallel to the plane where the galvanometer slide glass is located; the deflection sheet is configured to be inclined relative to the support frame at least around a first axis. The galvanometer slide glass provided by the utility model is beneficial to improving the strength of the galvanometer slide glass and prolonging the service life. The utility model further relates to a galvanometer and an optical machine.

Description

Technical Field

[0001] The present application relates to the field of projection display technology, and in particular includes a galvanometer carrier, a galvanometer of the galvanometer carrier, and an optical machine including the galvanometer. Background Art

[0002] A common galvanometer usually places a carrier on a platform. The carrier includes a support portion connected to the platform, a deflection plate that can be tilted relative to the platform, and a connecting arm for connecting the support portion and the deflection plate. The deflection plate is used to fix the lens, thereby driving the lens to deflect relative to the platform. The connecting arm and the support portion are simultaneously arranged on the periphery of the deflection plate. The connecting arm is usually set to be thinner so that it can match the tilt of the deflection plate through slight deformation when the deflection plate is tilted. However, since the connecting arm is set on the periphery of the deflection plate, the structure of the connecting arm is easily damaged by external collisions, resulting in a reduction in the service life of the galvanometer. Utility Model Content

[0003] The present application discloses a galvanometer carrier, a galvanometer and an optical machine, which can enhance the firmness of the galvanometer carrier structure and increase the service life.

[0004] In a first aspect, the present application relates to a galvanometer slide, comprising:

[0005] Deflector, used to carry and fix the lens;

[0006] a plurality of connecting arms disposed around the periphery of the deflecting piece, each connecting arm being connected to the deflecting piece; and

[0007] A support frame, wherein the support frame is arranged on at least one side of the connecting arm away from the deflection plate and is connected to the corresponding connecting arm; in at least one direction of a first direction and a second direction perpendicular to each other, the length of the support frame is greater than the length of the corresponding connecting arm, and the first direction and the second direction are parallel to the plane where the galvanometer carrier is located; the deflection plate is configured to be tilted relative to the support frame at least around a first axis.

[0008] The galvanometer carrier provided in the embodiment of the present application is configured such that the length of the support frame in at least one of the first direction or the second direction is greater than the length of the corresponding connecting arm, so that the support frame can surround the connecting arm in at least one direction, thereby positioning the connecting arm between the support frame and the deflection plate. This is beneficial for protecting the connecting arm, making the connecting arm less susceptible to damage, and improving the stability of the galvanometer carrier structure, thereby increasing the service life of the galvanometer carrier.

[0009] In one embodiment, the number of the support frames is two, and they are disposed on two opposite sides of the deflection plate.

[0010] In one embodiment, the support frame completely surrounds the deflector.

[0011] In one embodiment, the periphery of the deflector is defined by four side edges and four corners connecting any two of the side edges.

[0012] In one embodiment, the support frame at least partially surrounds the four corners of the deflecting plate to form four support corners.

[0013] In one embodiment, each of the connecting arms extends from any one of the supporting corners and is connected to the side edge or the corner.

[0014] In one embodiment, the support frame completely surrounds the deflection plate, and each of the connecting arms extends from a position between any two adjacent supporting corners on the support frame and is connected to the side edge.

[0015] In one embodiment, the connecting arm extends from two opposite sides of the deflector plate, extends along the periphery of the deflector plate to surround the deflector plate, and extends from the other two opposite sides of the deflector plate toward a direction away from the deflector plate to connect to the support frame.

[0016] In a second aspect, the present application also relates to a galvanometer, comprising:

[0017] carrier;

[0018] The galvanometer carrier is arranged on the stage, and the support frame is connected to the stage so that the deflection plate is configured to be tilted relative to the stage at least about a first axis;

[0019] a lens fixed on the deflection plate, for receiving and refracting the outgoing light; the lens can be tilted relative to the carrier under the drive of the deflection plate; and

[0020] A driving module is located on at least one side of the lens and is used to drive the deflection plate to tilt around the first axis relative to the carrier.

[0021] The galvanometer provided in the embodiment of the present application, by adopting the galvanometer carrier in the above embodiment, is conducive to enhancing the firmness of the galvanometer structure, reducing the risk of damage to the galvanometer, and thus increasing the service life of the galvanometer.

[0022] In a third aspect, the present application also relates to an optical machine, comprising:

[0023] A light source module, used for emitting image light;

[0024] The galvanometer mirror is used to receive and refract the image light.

[0025] The optical machine provided in the embodiment of the present application, by adopting the above-mentioned galvanometer, is conducive to improving the stability of the optical machine structure and thus increasing the service life of the optical machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0027] Figure 1 It is a structural schematic diagram of the galvanometer carrier in Example 1 provided in this application.

[0028] Figure 2 It is a structural schematic diagram of the galvanometer carrier in Example 2 provided in this application.

[0029] Figure 3 It is a structural diagram of the galvanometer carrier in Example 3 provided in this application.

[0030] Figure 4 It is a structural schematic diagram of the galvanometer carrier in the fourth embodiment provided in this application.

[0031] Figure 5 This is a schematic structural diagram of the galvanometer carrier in Example 5 provided in this application.

[0032] Figure 6 This is a schematic structural diagram of the galvanometer carrier in Example 6 provided in this application.

[0033] Figure 7 It is a structural schematic diagram of a galvanometer in an embodiment provided in this application.

[0034] Figure 8 yes Figure 7 Schematic diagram of the explosion structure.

[0035] Figure 9 It is a structural diagram of an optical machine in an embodiment provided in this application.

[0036] Description of main component symbols

[0037] Galvanometer carriers 10, 10a, 10b, 10c, 10d, 10e Deflector 11

[0038] Side 111

[0039] Corner 113

[0040] Light hole 12

[0041] Connecting arm 13

[0042] Support frames 15, 15a, 15b

[0043] Support angle 151

[0044] Galvanometer 100

[0045] Lens 20

[0046] Stage 30

[0047] Accommodation hole 31

[0048] Drive module 50

[0049] Magnet 51

[0050] Drive line group 53

[0051] Control module 70

[0052] Optical Machine 200

[0053] Light source module 210

[0054] First direction X

[0055] Second direction Y

[0056] First axis O1

[0057] Second axis O2

[0058] Image light L1

[0059] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0061] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly attached to the other component or there may be a central component. When a component is referred to as being "connected to" another component, it may be directly connected to the other component or there may be a central component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0062] It should be noted that the concepts of "first" and "second" mentioned in this application are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0063] See also Figure 1 , the galvanometer carrier 10 provided in the first embodiment of the present application includes a deflection plate 11, a plurality of connecting arms 13 and a support frame 15. The deflection plate 11 is used to fix the lens (not shown), and the deflection plate 11 is configured to be tilted relative to the support frame 15 at least around the first axis O1. A plurality of connecting arms 13 are arranged around the periphery of the deflection plate 11, and one end of each connecting arm 13 is connected to the deflection plate 11. The support frame 15 is arranged on at least one side of a connecting arm 13 away from the deflection plate 11 and is connected to the corresponding connecting arm 13. In at least one direction of the first direction X and the second direction Y that are perpendicular to each other, the length of the support frame 15 is greater than the length of the corresponding connecting arm 13. The first direction X and the second direction Y are parallel to the plane where the galvanometer carrier 10 is located.

[0064] Specifically, in this embodiment, the deflector 11 has a regular quadrilateral structure. The outer periphery of the deflector 11 is defined by four side edges 111 and four corners 113 connecting any two of the side edges. The side edges 111 are straight lines, two of which are parallel to the first direction X, and the other two of which are parallel to the second direction Y. The corners 113 can be right angles, rounded corners, or chamfered corners with a certain curvature. In other embodiments, the deflector 11 can also have other shapes, such as a circle, and this application does not limit this.

[0065] The deflector 11 has a light-transmitting hole 12. Specifically, when the deflector 11 is fixed to the lens, the lens covers the light-transmitting hole 12, and light projected onto the lens passes through the deflector 11 through the light-transmitting hole 12. When the deflector 11 tilts relative to the support frame 15, the deflector 11 causes the lens to tilt, causing the light emitted from the lens to be emitted in different directions.

[0066] In this embodiment, there are eight connecting arms 13, with two connecting arms 13 corresponding to each side 111. Specifically, each connecting arm 13 extends from the middle of a side 111 of the deflector plate 11 in a direction parallel to the side 111, thereby connecting to the support frame 15. Each side 111 corresponds to two connecting arms 13 extending in opposite directions, thereby extending to opposite ends of the deflector plate 11. When the deflector plate 11 tilts relative to the support frame 15, the connecting arms 13 deform slightly to accommodate the tilt of the deflector plate 11.

[0067] In this embodiment, the support frame 15 is annular and completely surrounds the deflector 11. Specifically, the support frame 15 surrounds the four corners 113 of the deflector 11 to form four support corners 151. Adjacent support corners 151 are connected to each other, thereby completely surrounding the deflector 11 and the connecting arms 13. Any connecting arm 13 extends from the side 111 of the deflector 11 and connects to a support corner 151.

[0068] In this embodiment, two support angles 151 arranged diagonally define a first axis O1 and a second axis O2, respectively. The deflection plate 11 can be tilted along the first axis O1 or the second axis O2 under the action of external force, so that when the lens is fixed on the deflection plate 11, as the deflection plate 11 tilts, the light emitted from the lens can be deflected along four different angles.

[0069] The galvanometer carrier 10 provided in the first embodiment of the present application is configured with a support frame 15 to completely surround the deflection plate 11 and the connecting arm 13, which is beneficial for blocking direct contact between the connecting arm 13 and the outside in the first direction X and the second direction Y at the same time, thereby protecting the connecting arm 13, thereby enhancing the stability of the galvanometer carrier 10 structure and improving its service life.

[0070] See also Figure 2 The second embodiment of the present application provides a galvanometer carrier 10a, which differs from the first embodiment in that the galvanometer carrier 10a includes a support frame 15a and a support frame 15b, and the support frame 15a and the support frame 15b are respectively arranged on opposite sides of the deflection plate 11.

[0071] Specifically, the support frame 15a and the support frame 15b each include two support angles 151. Any two support angles 151 aligned in the second direction Y are connected to each other, while any two support angles 151 aligned in the first direction X are not connected, thereby forming the support frames 15a and 15b spaced apart at both ends of the deflector plate 11. The length of the support frames 15a and 15b in the first direction X is at least greater than the length of the connecting arm 13 connected thereto in the first direction X, so that the projection of the support frame 15a or 15b along the second direction Y overlaps the projection of the connecting arm 13 connected thereto along the second direction Y. That is, at least in the second direction Y, the support frames 15a and 15b can block contact between the connecting arm 13 and the outside.

[0072] The galvanometer carrier 10a provided in the embodiment of the present application is configured with support frames 15a and 15b at opposite ends of the deflection plate 11, so that the support frames 15a and 15b can block the contact between the connecting arm 13 and the outside at least in the second direction Y, thereby protecting the connecting arm 13.

[0073] In other embodiments, depending on the actual application scenario of the galvanometer carrier 10, the multiple connecting arms 13 surrounding the deflection plate 11 may only be in contact with the external environment in some directions. Therefore, the direction in which the support frame 15 covers the connecting arms 13 can be adjusted according to the actual usage scenario, and this application does not impose any restrictions on this.

[0074] See also Figure 3 Embodiment 3 of the present application provides a galvanometer carrier 10b, which differs from embodiment 1 in that each connecting arm 13 extends from the corner 113 of the deflection plate 11 and is connected to the support corner 151 of the support frame 15.

[0075] Specifically, the connecting arm 13 first extends from the position of the corner 113 in a direction parallel to the side 111. When it approaches the middle position of the side 111, it flips outward 180° in the direction away from the deflector plate 11, and continues to extend in a direction parallel to the side 111, and then connects to the support angle 151.

[0076] See also Figure 4 The galvanometer carrier 10c provided in the fourth embodiment of the present application is different from that in the first embodiment in that the number of connecting arms 13 is four, and each connecting arm 13 extends from the approximate middle position of a side edge 111 of the deflection plate 11 and is connected to the approximate middle position between the two support angles 151 corresponding to the side edge 111 on the support frame 15.

[0077] In other embodiments, according to actual needs, the connecting arm 13 can also be set to other structures, and the present application does not impose any restrictions on this. As long as the support frame 15 can block the contact between the connecting arm 13 and the outside in the first direction X and / or the second direction Y, it is within the scope of the present application.

[0078] See also Figure 5 Embodiment 5 of the present application also provides a galvanometer carrier 10d, which differs from embodiment 1 in that the connecting arm 13 extends from two opposite side edges 111 of the deflection plate 11 in the first direction X, surrounds the deflection plate 11 along the periphery of the deflection plate 11, and extends from the position of the other two side edges 111 of the deflection plate 11 relative to the second direction Y toward a direction away from the deflection plate 11 to connect to the support frame 15.

[0079] Specifically, in this embodiment, the connecting arm 13 is an integrally formed structure, which includes an annular portion surrounding the deflector 11 and connecting portions respectively connected to the deflector 11 and the support frame 15. The support frame 15 completely surrounds the connecting arm 13, thereby protecting the connecting arm 13.

[0080] See also Figure 6The galvanometer carrier 10e provided in the sixth embodiment of the present application differs from the fifth embodiment in that the galvanometer carrier 10e includes support frames 15a and 15b disposed at opposite ends of the deflection plate 11 along the second direction Y. The lengths of the support frames 15a and 15b in the first direction X are greater than the length of the connecting arm 13 in the first direction X, such that the support frames 15a and 15b can block contact between the connecting arm 13 and the outside in the second direction Y.

[0081] Please also refer to Figure 7 and Figure 8 The present application also provides a galvanometer 100, which includes the galvanometer carrier 10, the lens 20, the stage 30, the drive module 50, and the control module 70 of any of the above embodiments. The lens 20 is fixed on the deflection plate 11, the stage 30 is used to support the galvanometer carrier 10, and the drive module 50 is used to drive the deflection plate 11 to tilt relative to the stage 30. The control module 70 is used to send a signal to the drive module 50 to control the activation of the drive module 50.

[0082] Specifically, the lens 20 is fixed to the deflector 11 and is used to receive and refract the outgoing light. When the deflector 11 tilts relative to the platform 30 about the first axis O1 or the second axis O2, the lens 20 can follow the tilt of the deflector 11, so that the light passing through the lens 20 can be emitted at different angles as the lens 20 tilts.

[0083] The carrier 30 is used to support the galvanometer carrier 10. The carrier 30 has a receiving hole 31. The support frame 15 is connected and fixed to the carrier 30 so that the deflection plate 11 can deflect relative to the carrier 30. The lens 20 fixed to the deflection plate 11 can be partially received in the receiving hole 31.

[0084] The driving module 50 includes a plurality of magnets 51 and a driving wire group 53 corresponding to each magnet 51. The magnets 51 are fixed on the deflection plate 11, and the driving wire group 53 is arranged on the carrier 30, so that when the galvanometer carrier 10 is set on the carrier 30, the magnets 51 can correspond to the driving wire group 53. The driving wire group 53 is used to generate a magnetic field corresponding to the magnet 51, thereby driving the magnet 51 to move, and then driving the deflection plate 11 to tilt. By adjusting the direction and strength of the current in the driving wire group 53, the size and strength of the force exerted on different magnets 51 can be adjusted accordingly, thereby driving the deflection plate 11 to tilt in different directions.

[0085] The galvanometer 100 provided in the embodiment of the present application, by adopting the galvanometer carrier 10 in the above embodiment, is conducive to avoiding contact between the connecting arm 13 of the galvanometer carrier 10 and the outside, thereby reducing the probability of damage to the galvanometer carrier 10, and is conducive to improving the stability of the galvanometer 10 structure, thereby extending the service life of the galvanometer 100.

[0086] See also Figure 9 The embodiment of the present application also provides an optical machine 200, which includes a light source module 210 and the galvanometer 100 in the above embodiment, wherein the light source module 210 is used to emit image light L1, and the galvanometer 100 is used to receive and refract the emitted image light L1. The galvanometer 100 can emit the image light L1 in different directions by tilting the lens 20.

[0087] The optical engine 200 provided in the embodiment of the present application can reduce the probability of damage to the galvanometer 100 by setting the galvanometer 100 in the above embodiment, thereby reducing the probability of damage to the optical engine 200, which is beneficial to extending the service life of the optical engine 200.

[0088] The above description is merely an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A galvanometer slide, characterized in that: include: Deflector, used to carry and fix the lens; A plurality of connecting arms are arranged around the periphery of the deflecting piece, each of the connecting arms being connected to the deflecting piece; as well as A support frame, wherein the support frame is arranged on at least one side of the connecting arm away from the deflection plate and is connected to the corresponding connecting arm; in at least one direction of a first direction and a second direction perpendicular to each other, the length of the support frame is greater than the length of the corresponding connecting arm, and the first direction and the second direction are parallel to the plane where the galvanometer carrier is located; the deflection plate is configured to be inclined relative to the support frame at least around a first axis.

2. The galvanometer slide according to claim 1, wherein: There are two support frames, which are arranged on two opposite sides of the deflection plate.

3. The galvanometer slide according to claim 1, wherein: The support frame completely surrounds the deflector.

4. The galvanometer slide according to claim 1, wherein: The periphery of the deflector is defined as four side edges and four corners connecting any two of the side edges.

5. The galvanometer slide according to claim 4, characterized in that: The support frame at least partially surrounds the four corners of the deflecting plate to form four support corners.

6. The galvanometer slide according to claim 5, characterized in that: Each of the connecting arms extends from any one of the supporting corners and is connected to the side edge or the corner.

7. The galvanometer slide according to claim 5, characterized in that: The support frame completely surrounds the deflection plate, and each of the connecting arms extends from a position between any two adjacent supporting corners on the support frame and is connected to the side edge.

8. The galvanometer slide according to claim 4, characterized in that: The connecting arm extends from two opposite side edges of the deflector plate, extends along the periphery of the deflector plate to surround the deflector plate, and extends from the other two opposite side edges of the deflector plate toward a direction away from the deflector plate to connect to the support frame.

9. A galvanometer, characterized in that: include: carrier; The galvanometer carrier according to any one of claims 1 to 8, arranged on the carrier, the support frame being connected to the carrier so that the deflection plate is configured to be tilted relative to the carrier about at least a first axis; a lens fixed on the deflection plate, for receiving and refracting the outgoing light; the lens can be tilted relative to the carrier under the drive of the deflection plate; and A driving module is located on at least one side of the lens and is used to drive the deflection plate to tilt around the first axis relative to the carrier.

10. An optical machine, characterized in that: include: A light source module, used for emitting image light; The galvanometer according to claim 9, is used to receive and refract the image light.

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