Lens adjustment components and optical devices

Abstract

The present application discloses a lens adjustment assembly and an optical device, belonging to the field of optical equipment. The lens adjustment assembly includes: a lens mounting bracket and at least one adjustment structure; the adjustment structure includes an adjustment plate and a first adjustment member; the lens mounting bracket includes a lens mounting surface, the adjustment plate is connected to the side of the lens mounting bracket, and the plane where the adjustment plate is located intersects with the lens mounting surface; the first adjustment member passes through the adjustment plate and is fixed to the inside of the housing of the optical device, and the first adjustment member is used to change the position and / or posture of the adjustment plate inside the housing of the optical device. The present application provides a lens adjustment assembly, which passes through the adjustment plate through the first adjustment member and is fixed to the inside of the housing of the optical device to fix the lens mounting bracket in the housing of the optical device, without providing an opening on the housing of the optical device. The effect of reducing the influence of the lens adjustment assembly on the sealing of the optical device is achieved.

Description

Technical Field

[0001] The present application relates to the field of optical equipment, and in particular to a lens adjustment assembly and an optical device. Background Art

[0002] The lens adjustment assembly is a component provided in an optical device for installing and adjusting the posture of the lens.

[0003] A current lens adjustment assembly is used in optical devices. The lens adjustment assembly includes a lens mounting bracket and an adjustment structure. The lens mounting bracket is connected to the adjustment structure. The adjustment structure includes an adjustment part, a spring and a screw. The adjustment part has a screw hole. The housing of the optical device has a through hole. The screw passes through the through hole and the spring from the outside of the housing and is threadedly connected to the screw hole on the adjustment part. The posture of the lens in the lens mounting bracket can be adjusted subsequently by rotating the screw.

[0004] However, due to the presence of the through hole on the housing of the optical device, the lens adjustment assembly has a significant impact on the sealing performance of the optical device. Summary of the Invention

[0005] The present invention provides a lens adjustment assembly and an optical device. The technical solution is as follows:

[0006] According to one aspect of an embodiment of the present application, a lens adjustment assembly is provided for use in an optical device.

[0007] The lens adjustment assembly includes: a lens mounting bracket and at least one adjustment structure;

[0008] The adjustment structure includes an adjustment sheet and a first adjustment member;

[0009] The lens mounting bracket includes a lens mounting surface, the adjustment piece is connected to a side surface of the lens mounting bracket, and a plane where the adjustment piece is located intersects with the lens mounting surface;

[0010] The first adjusting member passes through the adjusting plate and is fixed inside the housing of the optical device. The first adjusting member is used to change the position and / or posture of the adjusting plate inside the housing of the optical device.

[0011] Optionally, the first adjusting member includes a first screw, a first elastic member, and a first fixing structure, wherein the first fixing structure is fixed in a housing of the optical device, and has a screw hole;

[0012] The first screw passes through the adjusting plate and is threadedly connected to the screw hole on the first fixing structure;

[0013] One end of the first elastic member is connected to the adjustment piece, and the other end is connected to the first fixing structure or the housing of the optical device.

[0014] Optionally, the number of the adjustment structures is 2, and the two adjustment plates in the two adjustment structures are respectively located on two opposite sides of the lens mounting bracket.

[0015] Optionally, the adjusting plate has a first opening, and the first screw passes through the first opening and is threadedly connected to the screw hole on the first fixing structure;

[0016] The two first openings in the two adjustment plates are symmetrically arranged on both sides of the lens mounting bracket, and a line connecting the centers of the two first openings is parallel to the lens in the lens mounting bracket.

[0017] Optionally, the geometric center of the lens in the lens mounting bracket is located on a line connecting the centers of the two first openings.

[0018] Optionally, at least one of the two adjustment structures is a target adjustment structure, and the target adjustment structure further includes a second screw, a second elastic member and a second fixing structure;

[0019] The adjustment plate of the target adjustment structure further comprises a second opening, wherein the center of the second opening is not collinear with the centers of the two first openings;

[0020] The second fixing structure is located in the housing of the optical device, and has a screw hole;

[0021] The second screw passes through the second opening on the adjusting plate and is threadedly connected to the screw hole on the second fixing structure;

[0022] One end of the second elastic member is connected to the adjustment piece, and the other end is connected to the second fixing structure or the housing of the optical device.

[0023] Optionally, the first elastic member is a first spring, which is sleeved outside the first fixing structure, with one end of the first spring abutting against the adjustment sheet, and the other end of the first spring abutting against the housing of the optical device.

[0024] Optionally, the lens mounting bracket includes a lens mounting plate, a lens mounting portion located on one side of the lens mounting plate, and a lens buckle;

[0025] The lens buckle includes an elastic arm, a connecting piece and a back plate, which are connected in sequence. The elastic arm is configured to abut the lens in the lens mounting portion, and the back plate is in contact with the back side of the lens mounting plate. The back side of the lens mounting plate is opposite to a side of the lens mounting plate where the lens mounting portion is provided.

[0026] Optionally, the back surface of the lens mounting plate further has a limiting protrusion, the back plate of the lens buckle has an opening, and the limiting protrusion is clamped in the opening.

[0027] According to another aspect of the present application, an optical device is provided, comprising a housing and at least one lens adjustment assembly as described above, wherein the lens adjustment assembly is located in the housing.

[0028] The beneficial effects of the technical solutions provided in the embodiments of the present application include at least:

[0029] A lens adjustment assembly is provided, comprising a lens mounting bracket and at least one adjustment structure, the adjustment structure comprising an adjustment plate and a first adjustment member, the adjustment plate being connected to a side surface of the lens mounting bracket, the first adjustment member passing through the adjustment plate and being fixed within a housing of an optical device, thereby securing the lens mounting bracket within the housing of the optical device. The lens in the lens mounting bracket can subsequently be adjusted using the first adjustment member without requiring an opening in the housing of the optical device. The present invention solves the problem in the related art of the lens adjustment assembly significantly affecting the sealing of the optical device, thereby reducing the effect of the lens adjustment assembly on the sealing of the optical device.

[0030] In addition, in the related art, since there is an opening in the shell of the optical device, in order to reduce the impact of the opening on the sealing of the optical device, a sealing structure is set at the opening. The sealing structure will affect the inside and outside of the shell of the optical device and increase the difficulty of assembling the optical device. The lens adjustment assembly provided in the embodiment of the present application does not require an opening to be set on the shell of the optical device, thereby reducing the impact on the inside and outside of the shell of the optical device and reducing the difficulty of assembling the optical device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only 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.

[0032] Figure 1 It is a structural schematic diagram of an optical device in the related art;

[0033] Figure 2 is a structural schematic diagram of a lens adjustment assembly provided in an embodiment of the present application;

[0034] Figure 3 yes Figure 2 The schematic diagram of the structure of the lens adjustment assembly shown is partially located in the housing 31 of the optical device;

[0035] Figure 4 yes Figure 2 Schematic diagram of the exploded structure of the lens adjustment assembly and the housing of the light source assembly shown;

[0036] Figure 5 is a schematic structural diagram of another lens adjustment assembly provided in an embodiment of the present application;

[0037] Figure 6 is a schematic structural diagram of another lens adjustment assembly provided in an embodiment of the present application;

[0038] Figure 7 yes Figure 6 A schematic plan view of the structure of the lens adjustment assembly shown;

[0039] Figure 8 yes Figure 6 The exploded structure diagram of the lens adjustment assembly shown is located in the housing of the optical device;

[0040] Figure 9 yes Figure 8 A schematic diagram of the structure in which part of the lens adjustment assembly is located in the housing of the light source device;

[0041] Figure 10 This is a schematic structural diagram of a lens adjustment assembly provided by an embodiment of the present application, located within a housing of an optical device;

[0042] Figure 11 yes Figure 10 The enlarged structural diagram of a part of the lens adjustment assembly shown;

[0043] Figure 12 yes Figure 11 A schematic structural diagram of a buckle in a lens adjustment assembly is shown;

[0044] Figure 13 yes Figure 12 A schematic diagram of the three-dimensional structure of the buckle shown;

[0045] Figure 14 is a schematic diagram of a planar structure of an optical device provided in an embodiment of the present application;

[0046] Figure 15 yes Figure 14 An exploded schematic diagram of the optical device shown;

[0047] Figure 16 yes Figure 14 The schematic cross-sectional view of the optical device shown is taken at AA.

[0048] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0049] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0050] Figure 1 It is a structural schematic diagram of an optical device in the related art, which optical device may include a shell 11 and a lens adjustment assembly, the lens adjustment assembly including a lens mounting bracket 121 and an adjustment structure 122, the lens mounting bracket 121 is connected to the adjustment structure 122, the adjustment structure 122 includes an adjustment part 1221, a spring 1222 and a screw 1223, the adjustment part 1221 has a screw hole, the shell 11 of the optical device has a through hole 11k, the screw 1223 passes through the through hole 11k and the spring 1222 from the outside of the shell 11, and is threadedly connected to the screw hole 122a on the adjustment part 1221, and the posture of the lens m in the lens mounting bracket 121 can be adjusted by rotating the screw 1223.

[0051] In addition, since the housing 11 of the optical device of this structure has a through hole 11k, in order to prevent the external environment from affecting the interior of the optical device, the optical device also includes a sealing structure 113 located at the through hole. The sealing structure 113 may include a portion located outside the housing 11 and a portion located inside the housing 11. Since the screw 1223 is rotated outside the housing 11, it is necessary to reserve space outside the housing to facilitate the rotation of the screw. This causes the sealing structure 113 to affect other structures outside the housing 11 and affect the flatness of the housing. On the other hand, the presence of the sealing structure 113 increases the assembly process of the optical device, resulting in a longer assembly process for the optical device. For example, when assembling the optical device, structures such as the lens adjustment component are first installed in the housing, and the housing is sealed. Then, the screw is rotated from the outside of the housing to adjust the lens. After that, the through hole in the housing for the screw to pass through is sealed, and the assembly process is relatively complicated.

[0052] The embodiments of the present application provide a lens adjustment assembly and an optical device that can solve some problems existing in the related art.

[0053] The lens adjustment assembly provided in the embodiments of the present application can be used to install and adjust various lenses, such as reflectors and dichroic films.

[0054] The optical device provided in the embodiments of the present application may be a light source device or various other optical devices, and these optical devices may be located in a projector.

[0055] Figure 2 is a structural diagram of a lens adjustment assembly provided in an embodiment of the present application, Figure 3 yes Figure 2 The schematic diagram of the structure of the lens adjustment assembly shown is partially located in the housing 31 of the optical device. Figure 4 yes Figure 2 The exploded structural diagram of the lens adjustment assembly and the housing of the light source assembly is shown.

[0056] Please refer to Figure 2 、 Figure 3 as well as Figure 4 The lens adjustment assembly includes: a lens mounting bracket 21 and at least one adjustment structure 22.

[0057] The adjusting structure 22 includes an adjusting piece 22 a and a first adjusting member 22 b .

[0058] The lens mounting bracket 21 includes a lens mounting surface m1 , and the adjustment piece 22 a is connected to a side surface c1 of the lens mounting bracket 21 , and a plane where the adjustment piece 22 a is located intersects with the lens mounting surface m1 .

[0059] The first adjusting member 22b passes through the adjusting piece 22a and is fixed inside the housing 31 of the optical device. The first adjusting member 22b is used to change the position and / or posture of the adjusting piece 22a inside the housing 31 of the optical device.

[0060] In summary, the embodiments of the present application provide a lens adjustment assembly, which includes a lens mounting bracket and at least one adjustment structure, wherein the adjustment structure includes an adjustment plate and a first adjustment member, wherein the adjustment plate is connected to a side surface of the lens mounting bracket, and the first adjustment member passes through the adjustment plate and is fixed to the interior of the housing of the optical device to fix the lens mounting bracket within the housing of the optical device. Subsequently, the lens in the lens mounting bracket can be adjusted by the first adjustment member without providing an opening in the housing of the optical device. This solves the problem in the related art that the lens adjustment assembly has a significant impact on the sealing of the optical device, and achieves the effect of reducing the impact of the lens adjustment assembly on the sealing of the optical device.

[0061] In addition, in the related art, since the housing of the optical device has an opening, in order to reduce the impact of the opening on the sealing of the optical device, a sealing structure is provided at the opening. This sealing structure will affect the inside and outside of the optical device housing and increase the difficulty of assembling the optical device. However, the lens adjustment assembly provided in the embodiment of the present application does not require an opening in the housing of the optical device, thereby reducing the impact on the inside and outside of the optical device housing. In addition, when assembling the optical device, the reflector can be adjusted before the housing is sealed, and the housing can be sealed after the adjustment is completed. This simplifies the assembly process and reduces the difficulty of assembling the optical device.

[0062] In an exemplary embodiment, please refer to Figure 2 、 Figure 3 as well as Figure 4 The first adjusting member 22b includes a first screw 222, a first elastic member 223 and a first fixing structure 224 ( Figure 5 The figure shows the situation where the first elastic member 223 is sleeved outside the first fixing structure, but the embodiment of the present application is not limited to this).

[0063] The adjusting piece 22 a is connected to the lens mounting bracket 21 and has a first opening k1 .

[0064] The first fixing structure 224 is fixed in the housing 31 of the optical device, and has a screw hole s1 .

[0065] The first screw 222 passes through the adjusting plate 22 a (through the first opening k1 on the adjusting plate 22 a ) and is threadedly connected to the screw hole s1 on the first fixing structure 224 .

[0066] One end of the first elastic member 223 is connected to the adjustment piece 22 a , and the other end is connected to the first fixing structure 224 or the housing 31 of the optical device.

[0067] The first fixing structure 224 can be located at the bottom of the housing 31 of the optical device, so that the first screw 222 can be easily adjusted from the upper opening of the housing 31 of the optical device, reducing the difficulty of adjusting the lens adjustment assembly.

[0068] It should be noted that the connection between one end of the first elastic member 223 and the adjustment plate 22a can be various connection methods, such as a fixed connection or an abutment connection. Similarly, the connection between the other end of the first elastic member 223 and the first fixed structure 224 or the housing 31 of the optical device can also be various connection methods, such as a fixed connection or an abutment connection. The connection between the two ends of the first elastic member 223 is used to limit the movement of the two ends of the first elastic member 223. For example, when the first elastic member 223 is in a compressed state, the connection between the two ends of the first elastic member 223 is used to limit the extension of the first elastic member 223. When the first elastic member 223 is in a stretched state, the connection between the two ends of the first elastic member 223 is used to limit the contraction of the first elastic member 223.

[0069] For example, when the first elastic member 223 is in a compressed state, one end of the first elastic member 223 may abut against the adjustment piece 22 a , and the other end may abut against the first fixing structure 224 or the housing 31 of the optical device.

[0070] Figure 5 This is a structural diagram of another lens adjustment assembly provided in an embodiment of the present application. Figure 2 The lens adjustment assembly shown has been modified with some adjustments.

[0071] There are two adjustment structures 22, with two adjustment tabs 22a located on opposite sides of the lens mounting bracket 21. The two adjustment structures 22 located on opposite sides of the lens mounting bracket 21 can adjust the posture of the lens in the lens mounting bracket 21 in more dimensions, thereby improving the lens adjustment capability of the lens adjustment assembly.

[0072] Of course, the lens adjustment assembly provided in the embodiment of the present application may also have more adjustment structures, such as three adjustment structures, four adjustment structures, etc., and the embodiment of the present application does not limit this.

[0073] In an exemplary embodiment, the two first openings k1 in the two adjustment plates 22a are symmetrically arranged on either side of the lens mounting bracket 21, and a line L connecting the centers of the two first openings k1 is parallel to the lens in the lens mounting bracket (parallel to the lens may mean that the line L is parallel to the mirror surface of the lens). This symmetrical structure facilitates adjustment of the lens in the lens mounting bracket 21, reducing the difficulty of adjusting the lens adjustment assembly.

[0074] In an exemplary embodiment, the geometric center of the lens in the lens mounting bracket 21 is located on the line L connecting the centers of the two first openings. With this structure, when the screw in one first opening k1 rotates while the screw in the other first opening k1 does not rotate, or rotates in opposite directions, the lens in the lens mounting bracket 21 rotates about an axis passing through its own geometric center, facilitating adjustment. This further reduces the difficulty of adjusting the lens adjustment assembly.

[0075] Figure 6 is a structural diagram of another lens adjustment assembly provided in an embodiment of the present application, Figure 7 yes Figure 6 The schematic diagram of the plane structure of the lens adjustment assembly shown in FIG. Figure 8 yes Figure 6 The exploded view of the lens adjustment assembly shown is located in the housing of the optical device. Figure 6 、 Figure 7 as well as Figure 8 , wherein at least one adjustment structure 22 of the two adjustment structures is a target adjustment structure 22a, and the target adjustment structure 22a further includes a second screw 225, a second elastic member 226 and a second fixing structure 227.

[0076] The adjustment plate 22a of the target adjustment structure 22a further has a second opening k2, and the center of the second opening k2 is not collinear with the centers of the two first openings k1. Figure 7 What is shown is the situation where the line f connecting the center of the second opening k2 and the center of the first opening k1 on the same adjustment plate 22a is perpendicular to the line L (the line L is the line connecting the centers of the two first openings k1 on the two adjustment plates 22a), but the angle between the line f and the line L can also be other angles, for example, the angle can be greater than zero and less than 180 degrees.

[0077] Figure 9 yes Figure 8 The schematic diagram of the structure in which part of the lens adjustment assembly is located in the housing of the light source device is shown in FIG. Figure 9 , wherein the second fixing structure 227 is located in the housing 31 of the optical device, and has a screw hole s2.

[0078] Please refer to Figure 8 The second screw 225 passes through the second opening k1 on the adjusting plate 22a and is threadedly connected to the screw hole s2 on the second fixing structure.

[0079] One end of the second elastic member 226 is connected to the adjustment piece 22 a , and the other end is connected to the second fixing structure or the housing 31 of the optical device.

[0080] Based on the target adjustment structure, rotating the second screw 225 can adjust the posture of the lens in the lens mounting bracket 21 in multiple dimensions. For example, when the geometric center of the lens in the lens mounting bracket 21 is located on the line L connecting the centers of the two first openings, rotating the second screw 225 can cause the lens in the lens mounting bracket to rotate about another axis passing through the geometric center of the lens (this axis may be at an acute angle to the axis about which the lens rotates when adjusting the first screw).

[0081] Figure 10 This is a structural schematic diagram of a lens adjustment assembly provided in an embodiment of the present application, which is located in the housing of an optical device, wherein the first elastic member 223 is a first spring 2231, the first spring 2231 is sleeved outside the first fixed structure 224, and one end of the first spring 2231 abuts against the adjustment plate 22a, and the other end of the first spring 2231 abuts against the housing 31 of the optical device.

[0082] When adjusting the lens through the lens adjustment assembly, the two first screws can be fixed and the second screw can be rotated, thereby adjusting the lens in the lens mounting bracket. Figure 7 The line L shown is the axis of rotation. Alternatively, the two first screws and the one second screw can be rotated simultaneously to adjust the lens in the lens mounting bracket to be raised or lowered. Alternatively, the first screw and the second screw in the target adjustment structure can be rotated, but the first screw in the other adjustment structure cannot be rotated, to adjust the lens in the lens mounting bracket to be rotated in another direction (the axis of rotation can be perpendicular to the line L). Alternatively, the first screw and the second screw in the target adjustment structure can be rotated, but the first screw in the other adjustment structure cannot be rotated, to adjust the lens in the lens mounting bracket to be rotated. Alternatively, the first screw and the second screw in the target adjustment structure can be rotated in a first direction, and the first screw in the other adjustment structure can be rotated in a second direction (of the first and second directions, one can be clockwise and the other can be counterclockwise) to adjust the lens in the lens mounting bracket to be rotated.

[0083] Specifically, the first spring can be in a compressed state. When the first screw 222 is rotated, the first screw 22 can be screwed into or out of the screw hole in the first fixing structure 224. When the first screw 22 is screwed into the screw hole in the first fixing structure 224, pressure can be applied to the adjustment plate 22a. The adjustment plate 22a transmits the pressure to the first spring 2231, compressing the first spring 2231, causing the lens in the lens mounting bracket to rotate in a third direction about an axis passing through the geometric center of the lens. When the first screw 22 is screwed out of the screw hole in the first fixing structure 224, the first spring extends. Under the action of the thrust exerted by the extension of the first spring, the adjustment plate 22a can rotate in a fourth direction away from the first fixing structure, causing the lens in the lens mounting bracket to rotate in a second direction (one of the third and fourth directions can be clockwise and the other can be counterclockwise) about the axis passing through the geometric center of the lens.

[0084] Of course, the first elastic member may also be other structures, such as an elastic telescopic rod, etc., and the embodiment of the present application is not limited to this.

[0085] The structure of the second elastic member can refer to the first elastic member, and will not be described in detail in the embodiment of the present application.

[0086] Figure 11 yes Figure 10 An enlarged structural diagram of a partial area of ​​the lens adjustment assembly is shown, wherein the lens mounting bracket 21 includes a lens mounting plate 211 and a lens mounting portion 212 located on the lens mounting plate 211, and the angle x between the lens mounting plate 211 and the adjustment plate 22a is greater than zero degrees and less than or equal to 90 degrees.

[0087] Because the lens in the lens mounting bracket may have a certain angle with the bottom of the optical device housing, so that the lens can reflect the light beam in other directions, when the angle x between the lens mounting plate 211 and the adjustment plate 22a is greater than zero and less than or equal to 90 degrees, the first fixing structure, the second fixing structure, the first screw, and the second screw can be perpendicular to the bottom of the optical device housing, thereby facilitating the rotation of the first screw and the second screw. In an exemplary embodiment, the angle x can be 45 degrees.

[0088] A light-emitting unit (such as a laser) can be provided at the bottom of the shell of the optical device. The light beam emitted by the light-emitting unit can be perpendicular to the bottom of the shell of the optical device. When the angle x is 45 degrees, the lens can receive the light beam emitted by the light-emitting unit and make the reflected light beam parallel to the bottom of the shell of the optical device, which facilitates the control and adjustment of the light beam.

[0089] Please refer to Figure 11The lens mounting bracket 21 includes a lens mounting plate 211, a lens mounting portion 212 located on one side of the lens mounting plate 211, and a lens clip 213. The lens clip 213 can be used to secure the lens to the lens mounting portion 212. In an exemplary embodiment, the lens mounting bracket 211 can include two lens clips 213, which can be located at both ends of the lens and clip the ends of the lens to the lens mounting portion 212.

[0090] Figure 12 yes Figure 11 The schematic diagram of the structure of a buckle in the lens adjustment assembly shown in FIG. Figure 13 yes Figure 12 Please refer to the schematic diagram of the three-dimensional structure of the buckle shown in Figure 11 、 Figure 12 as well as Figure 13 , wherein the lens buckle 213 includes an elastic arm 2131, a connecting piece 2132 and a back plate 2133, the elastic arm 2131, the connecting piece 2132 and the back plate 2133 are connected in sequence, the elastic arm 2131 is configured to abut the lens in the lens mounting portion 212 (the lens mounting portion 212 can also be called a lens supporting surface), the back plate 2133 is in contact with the back side b1 of the lens mounting plate 212, and the back side b1 of the lens mounting plate 212 is opposite to a side b2 of the lens mounting plate 211 where the lens mounting portion is provided.

[0091] Please refer to Figure 11 The back surface b1 of the lens mounting plate 212 further includes a limiting protrusion t. The back plate 2133 of the lens clip 213 includes an opening c. The limiting protrusion t engages in the opening c, thereby securing the lens clip 213 to the lens mounting plate 212. The combination of the limiting protrusion t and the opening c on the back plate 2133 can limit the movement of the lens clip 213, thereby facilitating the lens clip 213 securing the lens to the lens mounting portion 212. Of course, in the lens adjustment assembly provided in this embodiment of the present application, other structures can also be used to secure the lens to the lens mounting portion 212, and this embodiment of the present application is not limited thereto.

[0092] In summary, the embodiments of the present application provide a lens adjustment assembly, which includes a lens mounting bracket and at least one adjustment structure, wherein the adjustment structure includes an adjustment plate and a first adjustment member, wherein the adjustment plate is connected to a side surface of the lens mounting bracket, and the first adjustment member passes through the adjustment plate and is fixed to the interior of the housing of the optical device to fix the lens mounting bracket within the housing of the optical device. Subsequently, the lens in the lens mounting bracket can be adjusted by the first adjustment member without providing an opening in the housing of the optical device. This solves the problem in the related art that the lens adjustment assembly has a significant impact on the sealing of the optical device, and achieves the effect of reducing the impact of the lens adjustment assembly on the sealing of the optical device.

[0093] In addition, in the related art, since there is an opening in the shell of the optical device, in order to reduce the impact of the opening on the sealing of the optical device, a sealing structure is set at the opening. The sealing structure will affect the inside and outside of the shell of the optical device and increase the difficulty of assembling the optical device. The lens adjustment assembly provided in the embodiment of the present application does not require an opening to be set on the shell of the optical device, thereby reducing the impact on the inside and outside of the shell of the optical device and reducing the difficulty of assembling the optical device.

[0094] Figure 14 It is a schematic planar structural diagram of an optical device provided in an embodiment of the present application. The optical device includes a housing 31 and at least one lens adjustment assembly 20 as mentioned above. The lens adjustment assembly 20 is located in the housing 31.

[0095] When the optical device includes a plurality of lens adjustment assemblies 20, the plurality of lens adjustment assemblies 20 may include at least one lens adjustment assembly 20 among the various lens adjustment assemblies 20 provided in the above embodiments.

[0096] Figure 15 yes Figure 14 The exploded structural diagram of the optical device shown, Figure 16 yes Figure 14 The cross-sectional view of the optical device at AA is shown in the figure. Figure 15 as well as Figure 16 The optical device includes two lens adjustment components 20. The structures of the two adjustment components 20 can be the same or different. Figure 15 The figure shows a case where the two lens adjustment assemblies 20 have the same structure, but this is not limiting.

[0097] The optical device includes two lens adjustment components 20, and the structures of the two lens adjustment components 20 are Figure 7 When the lens adjustment assembly 20 is shown, the two lens adjustment assemblies 20 can be L-shaped as a whole, such as Figure 14 As shown, among the two L-shaped lens adjustment components 20, one lens adjustment component 20 can be arranged in a positive L-shape in the housing of the optical device, and the other lens adjustment component 20 can be arranged in an inverted L-shape (ie The two lens adjustment assemblies 20 are arranged in a housing of the optical device, and the two lens adjustment assemblies 20 form a similar complementary shape, so that the two lens adjustment assemblies 20 can fit more closely, saving the internal space of the optical device and facilitating the miniaturization of the optical device.

[0098] In summary, an embodiment of the present application provides an optical device, wherein a lens adjustment assembly in the optical device includes a lens mounting bracket and at least one adjustment structure, wherein the adjustment structure includes an adjustment plate and a first adjustment member, wherein the adjustment plate is connected to a side surface of the lens mounting bracket, and the first adjustment member passes through the adjustment plate and is fixed to the interior of a housing of the optical device to fix the lens mounting bracket within the housing of the optical device. Subsequently, the lens in the lens mounting bracket can be adjusted by the first adjustment member without providing an opening in the housing of the optical device. This solves the problem in the related art that the lens adjustment assembly has a significant impact on the sealing of the optical device, thereby achieving the effect of reducing the impact of the lens adjustment assembly on the sealing of the optical device.

[0099] In addition, in the related art, since there is an opening in the shell of the optical device, in order to reduce the impact of the opening on the sealing of the optical device, a sealing structure is set at the opening. The sealing structure will affect the inside and outside of the shell of the optical device and increase the difficulty of assembling the optical device. The lens adjustment assembly provided in the embodiment of the present application does not require an opening to be set on the shell of the optical device, thereby reducing the impact on the inside and outside of the shell of the optical device and reducing the difficulty of assembling the optical device.

[0100] In addition, an embodiment of the present application may also provide a projector, which may include the optical device provided by the above embodiment.

[0101] In this application, the term "and / or" simply describes an association between related objects, indicating that three possible relationships exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0102] In this application, the term "at least one of A and B" simply describes an association relationship between associated objects, indicating that three possible relationships exist. For example, "at least one of A and B" can mean: A exists alone, A and B exist simultaneously, and B exists alone. Similarly, "at least one of A, B, and C" means that seven possible relationships exist, indicating: A exists alone, B exists alone, C exists alone, A and B exist simultaneously, A and C exist simultaneously, C and B exist simultaneously, and A, B, and C exist simultaneously. Similarly, "at least one of A, B, C, and D" means that fifteen possible relationships exist, indicating: A exists alone, B exists alone, C exists alone, D exists alone, A and B exist simultaneously, A and C exist simultaneously, A and D exist simultaneously, C and B exist simultaneously, D and B exist simultaneously, C and D exist simultaneously, C and D exist simultaneously, A, B, and C exist simultaneously, A, B, and D exist simultaneously, A, C, and D exist simultaneously, B, C, and D exist simultaneously, and A, B, C, and D exist simultaneously.

[0103] In this application, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more, unless otherwise expressly limited.

[0104] The above description is merely an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A lens adjustment assembly, characterized in that: For use in an optical device, the lens adjustment assembly comprises: a lens mounting bracket and at least one adjustment structure; The adjustment structure includes an adjustment sheet and a first adjustment member; The lens mounting bracket includes a lens mounting surface, the adjustment piece is connected to a side surface of the lens mounting bracket, and a plane where the adjustment piece is located intersects with the lens mounting surface; The first adjusting member is fixed inside the housing of the optical device, and the first adjusting member is used to change the position and / or posture of the adjusting plate inside the housing of the optical device; The first adjusting member includes a first screw, a first elastic member, and a first fixing structure, wherein the first fixing structure is fixed to the bottom of the housing of the optical device, and has a screw hole; The first screw passes through the adjusting plate and is threadedly connected to the screw hole on the first fixing structure; One end of the first elastic member is connected to the adjustment piece, and the other end is connected to the first fixing structure or the housing of the optical device.

2. The lens adjustment assembly according to claim 1, wherein: The number of the adjustment structures is 2, and the two adjustment plates in the two adjustment structures are respectively located on two opposite sides of the lens mounting bracket.

3. The lens adjustment assembly according to claim 2, wherein: The adjusting plate has a first opening, and the first screw passes through the first opening and is threadedly connected to the screw hole on the first fixing structure; The two first openings in the two adjustment plates are symmetrically arranged on both sides of the lens mounting bracket, and a line connecting the centers of the two first openings is parallel to the lens in the lens mounting bracket.

4. The lens adjustment assembly according to claim 3, wherein: The geometric center of the lens in the lens mounting bracket is located on the line connecting the centers of the two first openings.

5. The lens adjustment assembly according to claim 3, wherein: At least one of the two adjustment structures is a target adjustment structure, and the target adjustment structure further includes a second screw, a second elastic member, and a second fixing structure; The adjustment plate of the target adjustment structure further comprises a second opening, wherein the center of the second opening is not collinear with the centers of the two first openings; The second fixing structure is located in the housing of the optical device, and has a screw hole; The second screw passes through the second opening on the adjusting plate and is threadedly connected to the screw hole on the second fixing structure; One end of the second elastic member is connected to the adjustment piece, and the other end is connected to the second fixing structure or the housing of the optical device.

6. The lens adjustment assembly according to any one of claims 1 to 5, characterized in that: The first elastic member is a first spring, which is sleeved outside the first fixing structure. One end of the first spring abuts against the adjustment sheet, and the other end of the first spring abuts against the housing of the optical device.

7. The lens adjustment assembly according to any one of claims 1 to 5, characterized in that: The lens mounting bracket includes a lens mounting plate, a lens mounting portion located on one side of the lens mounting plate, and a lens buckle; The lens buckle includes an elastic arm, a connecting piece and a back plate, which are connected in sequence. The elastic arm is configured to abut the lens in the lens mounting portion, and the back plate is in contact with the back side of the lens mounting plate. The back side of the lens mounting plate is opposite to a side of the lens mounting plate where the lens mounting portion is provided.

8. The lens adjustment assembly according to claim 7, wherein: The back side of the lens mounting plate is further provided with a limiting protrusion, and the back plate of the lens buckle is provided with an opening, and the limiting protrusion is clamped in the opening.

9. An optical device, characterized in that: The optical device comprises a housing and at least one lens adjustment assembly according to any one of claims 1 to 8, wherein the lens adjustment assembly is located in the housing.

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