CN108089276B

CN108089276B - Optical element adjusting assembly, light emitting module and projection equipment

Info

Publication number: CN108089276B
Application number: CN201611174088.4A
Authority: CN
Inventors: 杜伦春; 张志丹; 谭大治; 李屹
Original assignee: Appotronics Corp Ltd
Current assignee: Shenzhen Appotronics Corp Ltd
Priority date: 2016-11-21
Filing date: 2016-12-19
Publication date: 2023-11-24
Anticipated expiration: 2036-12-19
Also published as: CN108089276A; CN206818951U; WO2018113422A1; CN117233913A

Abstract

The invention discloses an optical element adjusting assembly, a light emitting module and projection equipment, wherein the optical element adjusting assembly comprises: a mounting bracket having a mounting hole for mounting the optical element; and the fine tuning component is used for adjusting the position of the mounting bracket. Therefore, the position of the mounting bracket can be adjusted by adjusting the fine adjustment assembly, and the purpose of adjusting the position of the optical element is achieved, so that the central axis of the optical element and the central axis of the light receiving component positioned at the downstream of the optical element in the light beam transmission direction can be ensured to be accurately aligned, and the light beam emitted after passing through the optical element can be received and utilized by the light receiving component with little loss.

Description

Optical element adjusting assembly, light emitting module and projection equipment

Technical Field

The present invention relates to the field of optical technologies, and in particular, to an optical element adjusting assembly, a light emitting module, and a projection apparatus.

Background

At present, a light source mechanism, such as a laser light source, and an optical element, such as a light-emitting lens, for performing light processing on a light beam emitted from the light source mechanism are generally disposed in a projection device, so that in order to reduce the loss of the light beam as much as possible during the transmission process, the light beam is accurately transmitted to a light-receiving component, such as a square bar and a light valve, through the optical element, and further projected onto a screen through a projection lens, it is necessary to ensure that the optical element is accurately positioned.

However, because the light source mechanism, the optical element or the light receiving component of the projection device inevitably has production errors in the production process, and meanwhile, installation errors exist in the process of installing the light source mechanism and the optical element, the central axis of the light beam emitted by the light source mechanism and the central axis of the optical element into which the light beam enters are finally caused, and in the transmission process of the light beam through a plurality of optical elements, the central axis of the light beam and the central axis of each optical element into which the light beam enters, the central axis of the light beam emitted by the optical element and the central axis of the light receiving component into which the light beam exits are likely to have alignment deviation, so that the light beam emitted by the light source mechanism generates larger loss in the transmission process, and part of the light beam is not projected to a screen, and the projection quality such as projection brightness is reduced.

For example, as shown in fig. 1, there is a conventional projection apparatus having a lens mounting assembly mainly including a light-emitting housing 01 and a lens pressing piece 03, the light-emitting lens 02 being mounted to the light-emitting housing 01 and fixedly mounted by the lens pressing piece 03, and then sealed by a rubber ring.

In this lens mounting assembly, since the light-emitting lens 02 is directly and fixedly mounted on the light-emitting housing 01, when the center of the light-emitting lens 02 and the center of the client-side receiving element are displaced, it is difficult to adjust the lens 02, and therefore, the displacement occurs between the central axis of the light beam emitted from the light-emitting lens 02 to the light-receiving member such as the square bar or the light valve and the central axis of the light-receiving member, resulting in poor projection quality of the projector.

Thus, how to facilitate the adjustment of optical elements is a technical problem that needs to be solved by the person skilled in the art.

Disclosure of Invention

Accordingly, an object of the present application is to provide an optical element adjusting assembly, a light emitting module and a projection apparatus, which can adjust an optical element to ensure that a light beam can be transmitted accurately with little loss.

As an object of the present application, there is provided an optical element adjustment assembly comprising: a mounting bracket having a mounting hole for mounting the optical element; and the fine tuning component is used for adjusting the position of the mounting bracket.

In the technical scheme, the optical element adjusting assembly adjusts the installation position of the installation bracket by adjusting the fine adjusting assembly, thereby achieving the purpose of adjusting the position of the optical element installed in the installation hole of the installation bracket and ensuring the accurate alignment of the central axis of the optical element and the central axis of the light receiving part positioned at the downstream of the optical element in the light beam transmission direction.

Further, the mounting bracket comprises a first bracket and a second bracket, the first bracket is provided with a mounting hole for mounting the optical element, the second bracket is provided with a bracket hole opposite to the mounting hole, the first bracket is connected with the second bracket, the fine adjustment assembly comprises a first adjusting piece, the first adjusting piece is connected with the second bracket, and the acting force applied to the second bracket through the first adjusting piece drives the second bracket to drive the first bracket to move in the first direction.

In the technical scheme, the second support is driven by the first adjusting piece to move along the first direction and simultaneously drives the first support to move together, so that the optical element is driven to move, and the position of the optical element is adjusted.

Still further, the fine tuning assembly further comprises a first elastic member, the first elastic member extends along a first direction, a free end of the first elastic member abuts against the second bracket, and the length of the first elastic member in the first direction is increased or decreased in the process that the first adjusting member applies the acting force to the second bracket.

In this embodiment, through setting up first elastic component for first regulating part is more stable to the effort that the second support applyed, also makes the removal of second support more steady, more does benefit to the accurate adjustment to the position of second support.

Still further, the second support is provided with first lug, and first lug is provided with first preformed hole, and first regulating part is connected with first preformed hole, and first preformed hole moves along the axial direction of first regulating part under first regulating part drive.

In this embodiment, the first regulating part is connected with the first preformed hole to realize reliable connection with the second support, and can guarantee that the first regulating part stably and steadily drives the second support and the first support to move.

Still further, the fine setting subassembly still includes two spacing holes, two bellying and two second regulating parts, two bellying set up in first support, two spacing holes set up in the second support, two bellying are arranged in two spacing holes respectively, two bellying all are provided with the second preformed hole, the second regulating part is connected with the second preformed hole correspondingly, through stirring one of them of two second regulating parts respectively, make two bellying can produce the relative removal of the second direction and the direction of perpendicular to first direction along two spacing holes, thereby drive first support produces the removal of second direction for the second support.

In the present embodiment, the position of the optical element mounted on the first bracket can be adjusted in the second direction perpendicular to the first direction by operating the two second adjusting members.

Still further, the second support still is provided with the second lug, is equipped with a spacing hole between first lug and second lug.

In this embodiment, through setting up the second lug so that a spacing hole is established between first lug and second lug, can make installing support overall structure compact, saved the space.

Still further, the fine setting subassembly still includes first retaining member, and the second lug is provided with the third preformed hole, and first retaining member is connected and supports the first support with the third preformed hole.

In the technical scheme, the first locking piece is connected with the third preformed hole and abuts against the first bracket, so that the position of the first bracket in the second direction can be prevented from being unnecessarily displaced.

Still further, the second support includes first platen and the first boss that is connected, and the second support is equipped with the first preformed hole that link up first platen and extend to in the first boss, and first regulating part is connected with first preformed hole, and first preformed hole moves along the axial direction of first regulating part under first regulating part drive.

In the technical scheme, the first adjusting piece is connected with the first preformed hole, so that the first adjusting piece is reliably connected with the second bracket, and the first adjusting piece can stably and stably drive the second bracket and the first bracket to move, thereby accurately adjusting the position of the optical element arranged on the first bracket in the first direction.

Still further, the fine tuning assembly further comprises a first locking member, the second bracket is provided with a second preformed hole penetrating through the first platen and the first boss, and the first locking member is connected with the second preformed hole and abuts against the first bracket.

In this embodiment, through setting up first retaining member, when first retaining member is connected with the second preformed hole and supports when pressing first support, can realize the fixed in position of first support in the second direction.

Still further, the fine setting subassembly still includes the second regulating part, the second support includes fixed connection's second boss and second platen, be equipped with first through opening on the second platen, the second boss is equipped with the first shoulder hole relative with first through opening, first shoulder hole includes first via hole, the first counter bore of first support of dorsad and be located the first ladder face between first via hole and the first counter bore, be equipped with the third preformed hole relative with first via hole on the first support, the second regulating part includes second adjusting head and second regulation pole, the second adjusting head is arranged in first counter bore, the second regulation pole is connected with the third preformed hole through first via hole, the size of first through opening is less than the size of second adjusting head, the third preformed hole moves along the axial direction of second regulating part under the drive of second regulating part, drive first support produces the removal of the second direction of perpendicular to first direction relative to the second support through the second regulating part.

In the present embodiment, by providing the second adjusting member, the position of the optical element mounted on the first bracket can be adjusted in the second direction perpendicular to the first direction.

Still further, the fine tuning assembly further comprises a second elastic piece, a first concave hole is formed in the free end, opposite to the second boss, of the first support, a resisting plate opposite to the first concave hole is arranged on the second support, and the second elastic piece is arranged between the first concave hole and the resisting plate in a compressed mode along the second direction.

In this embodiment, since the fine adjustment assembly further includes the second elastic element, the acting force applied by the second adjustment element to the first bracket is more stable, and the movement of the first bracket is also more stable.

Still further, optical element adjusting part still includes the support subassembly, the support subassembly includes the support body, first support, second support and fine setting subassembly hold in the holding chamber of support body, the support body includes first regulation trompil and first extension board, first extension board is located in the first regulation trompil, be equipped with the second shoulder hole on first extension board, the second shoulder hole includes the second via hole, the second counter bore of second support dorsad and be located the second counter bore between second via hole and the second counter bore, first regulating part includes first regulation head and first regulation pole, first regulation head is arranged in the second counter bore, first regulation pole is connected with first preformed hole through the second via hole, the support body still includes the apron with first extension board fixed connection and have the second through-hole, the size of second through-hole is less than the size of first regulation head.

In this embodiment, the holding chamber of support body not only holds first support, second support and fine setting subassembly but also can prevent to a great extent that external debris from to the pollution of first support, second support and fine setting subassembly, through the restriction of second step face or/and apron to the position first direction of first adjustment head for first preformed hole moves along the axial direction of first adjustment piece under first adjustment piece drive, thereby can realize adjusting the position of second support for the support body through the regulation to first adjustment piece.

Still further, be equipped with the first through-hole adjacent with first extension board in the first trompil of adjusting, the fine setting subassembly still includes first retaining member, and the second support is equipped with the second preformed hole that link up first platen and first boss, and first retaining member is connected with the second preformed hole and supports first support, and first through-hole is relative with the second preformed hole, and first retaining member is connected with the second preformed hole through first through-hole.

Still further, the fine setting subassembly still includes the second retaining member, and the support body still includes second regulation trompil and second extension board, and the second extension board is located in the second regulation trompil, is equipped with the fourth preformed hole on the second extension board, and the second retaining member supports the part except first trompil of pressure second platen through the fourth preformed hole.

In the technical scheme, by arranging the second locking piece, when the second locking piece abuts against the part of the second platen except the first opening through the fourth preformed hole, the position of the second bracket in the first direction can be fixed.

Still further, be equipped with the second through-hole adjacent with the second extension board in the second regulation trompil, the second through-hole is relative with the third preformed hole, and the second regulating part is connected with the third preformed hole through the second through-hole.

In the technical scheme, the second through hole is formed, so that the second adjusting piece and the third reserved hole can be conveniently connected and adjusted.

Still further, the support assembly further includes a first seal plate fixedly connected to the support body to seal the first adjustment aperture and a second seal plate fixedly connected to the support body to seal the second adjustment aperture.

In this embodiment, through setting up first closing plate and second closing plate, can improve optical element adjusting part's sealing performance, avoid external debris to get into first regulation trompil and second regulation trompil to and further avoid external debris to get into the chamber of holding.

Still further, a first elastic member is disposed between the holder body and the second bracket, and a length of the first elastic member in the first direction increases or decreases as the first preformed hole is moved in the axial direction of the first regulating member by the first regulating member.

In this embodiment, through arranging first elastic component between support body and second support for first regulating part is more stable to the effort that the second support applyed, also makes the second support more steady for the removal of support body, more does benefit to the accurate adjustment to the position of second support.

Still further, the optical element adjusting assembly further comprises a first positioning assembly, the first support is provided with a first kidney-shaped positioning hole, the second support is provided with a first fixing hole, the extending direction of the first kidney-shaped positioning hole is parallel to the second direction, the first positioning assembly is fixedly connected with the first fixing hole through the first kidney-shaped positioning hole, the first positioning assembly is used for abutting the first support on the second support, and when the first support moves relative to the second support along the second direction, the first kidney-shaped positioning hole moves along the second direction under the guidance of the first positioning assembly.

In the technical scheme, through setting up first locating component and the parallel first kidney-shaped locating hole of extending direction and second direction, both realized fixing first support and second support in perpendicular to first direction and second direction through first locating component, also realized that first support is along the second direction removal for the second support through first support with the help of the removal of first kidney-shaped locating hole along the second direction under first locating component's guide.

Still further, optical element adjusting part still includes second locating component, and the second support is provided with second kidney-shaped locating hole, and the support body is provided with the second fixed orifices, and the extending direction of second kidney-shaped locating hole is parallel with first direction, and second locating component is through second kidney-shaped locating hole and second fixed orifices fixed connection, and second locating component is used for with second support butt in the support body, and when the second support moved along first direction for first support, the second kidney-shaped locating hole moved along first direction under the guide of second locating component.

In the technical scheme, through setting up second locating component and the parallel second kidney-shaped locating hole of extending direction and first direction, both realized through the second locating component to second support and support body in perpendicular to first direction and the fixed of second direction, also realized through the second support with the help of the removal along first direction of second kidney-shaped locating hole under the guide of second locating component that the second support is along the second direction for the support body.

Still further, first locating component or second locating component include fastener, adjustment mechanism spring and gasket, and adjustment mechanism spring and gasket cover are located the periphery of fastener, and have arranged adjustment mechanism spring and gasket in first kidney-shaped locating hole or the second kidney-shaped locating hole.

In this embodiment, through setting up first locating component and second locating component to including fastener, adjustment mechanism spring and gasket, can play connection, fixed action when exerting elasticity supporting pressure for connection, fixed action are stable, reliable.

As another object of the present invention, the present invention provides a light emitting module, which includes an optical element, the optical element being a light emitting lens, and further includes an optical element adjusting assembly, the optical element adjusting assembly being an optical element adjusting assembly as described above.

In this embodiment, the light emitting module includes the above-mentioned optical element adjusting part, and optical element is the light emitting lens to adjust the position of light emitting lens through adjusting optical element adjusting part, thereby make the light beam pass through the light emitting lens and can little loss and accurately exit to low reaches light receiving part, guaranteed that the light emitting module has very high light beam transmission quality.

As another object of the present invention, there is provided a projection apparatus including a light source assembly and further including an optical element adjustment assembly, the optical element adjustment assembly being as described above.

In this embodiment, the projection device includes the light source assembly and the optical element adjusting assembly, so that the position of the optical element is adjusted by adjusting the optical element adjusting assembly, so that the light beam generated by the light source assembly can be emitted to the downstream light receiving component accurately with little loss through the optical element, and the projection device is ensured to have high projection quality.

The optical element adjusting assembly, the light emitting module with the optical element adjusting assembly and the projection equipment provided by the invention have the advantages that when the optical element is assembled, the optical element is arranged in the mounting hole arranged on the mounting bracket, then the mounting bracket is arranged at the corresponding position of the light emitting module or the projection equipment, and the mounting position of the mounting bracket can be adjusted by adjusting the fine adjusting assembly, so that the purpose of adjusting the position of the optical element is achieved, the central axis of the optical element can be accurately aligned with the central axis of the light receiving part positioned at the downstream of the optical element in the light beam transmission direction, and the light beam emitted by the optical element can be received and utilized by the light receiving part with little loss and accuracy.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a prior art lens mounting assembly;

FIG. 2 is a schematic cross-sectional view showing the structure of an optical element adjusting assembly according to a first embodiment of the optical element adjusting assembly provided by the present invention;

FIG. 3 is a schematic view mainly showing the structure of a mounting bracket and a fine tuning assembly of a first embodiment of an optical element adjusting assembly provided by the present invention;

FIG. 4 is a schematic view of a mounting bracket and trim assembly generally illustrating a second embodiment of an optical element adjustment assembly provided by the present invention;

FIG. 5 is a schematic view showing the structure of an optical element adjusting assembly according to a second embodiment of the optical element adjusting assembly provided by the present invention;

FIG. 6 is a schematic front view mainly showing a part of the structure of the optical element adjusting assembly shown in FIG. 5;

FIG. 7 is a schematic cross-sectional view mainly showing the structure of the optical element adjusting assembly shown in FIG. 5;

FIG. 8 is an enlarged view of a portion of the position A of FIG. 7;

FIG. 9 is an enlarged view of a portion of the B position of FIG. 7;

FIG. 10 is a schematic side view of a structure of the optical element adjustment assembly of FIG. 5 with a second seal plate hidden;

FIG. 11 is a schematic top view of the optical element adjustment assembly of FIG. 5 with a first seal plate hidden;

FIG. 12 is a schematic view of the positioning assembly of the first and second embodiments of the optical element adjustment assembly provided by the present invention;

reference numerals illustrate:

wherein, in fig. 1:

a light-emitting shell 01, a lens 02 and a lens pressing sheet 03;

in fig. 2 and 3:

the light emitting device comprises a first bracket 1, a protruding part 1a, a second preformed hole 1b, a first kidney-shaped positioning hole 1c, a second bracket 2, a first protruding block 2a, a first preformed hole 2b, a second kidney-shaped positioning hole 2c, a limiting hole 2d, a second protruding block 2e, a third preformed hole 2f, a first adjusting piece 3, a second adjusting piece 4, an elastic piece 5, a first locking piece 6, a first positioning component 7, a second positioning component 8, a fastening piece 9, an adjusting mechanism spring 10, a gasket 11, a pressing piece 12 and a light emitting shell 13;

fig. 5 to 12:

the first bracket 100, the second adjusting piece 110, the second adjusting head 111, the second adjusting rod 112, the third preformed hole 120, the second elastic piece 130, the first kidney-shaped positioning hole 140 and the pressing piece 150;

The second bracket 200, the concave portion 201, the first surface 202, the supporting surface 203, the second surface 204, the first adjusting member 210, the first adjusting head 211, the first adjusting lever 212, the first boss 220, the first platen 221, the first preformed hole 222, the second kidney-shaped positioning hole 223, the first elastic member 230, the first locking member 240, the second preformed hole 223, the second boss 250, the second platen 251, the first through opening 252, the first stepped hole 253, the first through hole 253A, the first counterbore 253B, the first stepped surface 253C, and the retaining plate 260;

the support assembly 300, the support body 310, the receiving cavity 311, the first adjustment opening 312, the first through hole 313, the first support plate 314, the second stepped hole 315, the second through hole 315A, the second counter bore 315B, the second stepped surface 315C, the second adjustment opening 316, the second through hole 317, the second support plate 318, the fourth preformed hole 319, the cover plate 320, the second through opening 321, the first sealing plate 330, the second locking member 340, the second sealing plate 350, the third sealing plate 360;

first positioning assembly 400, second positioning assembly 500, fasteners 410/510, adjustment mechanism springs 420/520, shims 430/530;

and a light-emitting lens 600.

Detailed Description

The invention discloses an optical element adjusting assembly, a light emitting module and projection equipment, which can adjust an optical element and ensure that light beams emitted after passing through the optical element are rarely lost and accurately received and utilized.

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

First embodiment of an optical element adjustment Assembly

Referring to fig. 2, 3 and 12, fig. 2 is a schematic structural cross-sectional view of an optical element adjusting assembly according to a first embodiment of the optical element adjusting assembly provided by the present invention, fig. 3 is a schematic structural view of a mounting bracket and a trimming assembly according to the first embodiment of the optical element adjusting assembly provided by the present invention, and fig. 12 is a schematic structural view of a positioning assembly according to the first embodiment of the optical element adjusting assembly provided by the present invention.

In this embodiment, an optical element adjustment assembly includes a mounting bracket having a mounting hole for mounting an optical element and a fine adjustment assembly; the fine tuning assembly is arranged on the mounting bracket and used for adjusting the position of the mounting bracket.

Thus, when the optical element is installed in the installation hole arranged on the installation support during assembly, the installation position of the installation support can be adjusted by adjusting the fine adjustment assembly, so that the aim of adjusting the position of the optical element is fulfilled, and the central axis of the optical element can be accurately aligned with the central axis of the light receiving part positioned at the downstream of the optical element in the light beam transmission direction.

The optical element may be a lens, a diffusion sheet, a reflection sheet, or the like, and in this embodiment, the optical element is preferably a light-emitting lens, and hereinafter, the optical element adjustment assembly will be described by taking a mounting of the light-emitting lens as an example. The corresponding optical element is of course selected for installation according to the actual use requirements.

It should be noted that the mounting bracket may be mounted as a whole in a corresponding projection device, and it is needless to say that, the mounting bracket is mounted in the light-emitting housing 13 and then mounted in the projection device, and in this embodiment, the mounting bracket is mounted in the light-emitting housing 13 as a preferred mounting manner, and the optical element is preferably a light-emitting lens to describe the optical element adjusting assembly in detail, where it is known that the optical element adjusting assembly may be applied to position adjustment of other types of optical elements such as lenses, diffusion sheets, and reflection sheets, and these optical elements are mounted in corresponding positions in the projection device according to their different effects on the light beam in the projection device.

In this embodiment, referring to fig. 2 and 3, the optical element adjustment assembly is preferably arranged in the following manner: the mounting bracket comprises a first bracket 1 and a second bracket 2, wherein the first bracket 1 is provided with a mounting hole for mounting the light-emitting lens, and the first bracket 1 is connected with the second bracket 2. The second bracket 2 is provided with a bracket hole opposite to the mounting hole, and the aperture of the bracket hole is preferably set to be slightly larger than that of the mounting hole so that the whole of the light-emitting lens mounted in the mounting hole faces the bracket hole to receive the light beam without being affected by the change in position of the first bracket. Alternatively, the mounting holes may be replaced by openings, that is, as long as the second bracket has an open space for the light beam to pass through and toward the mounting holes. In the present embodiment, the first bracket 1 is located further downstream side of the light beam than the second bracket 2 with respect to the transmission direction of the light beam through the optical element adjusting assembly, and therefore, the light beam is incident from the bracket hole of the second bracket 2 to the light-emitting lens mounted in the mounting hole and further emitted during transmission through the second bracket 2. The trimming assembly comprises a first adjusting member 3, which first adjusting member 3 is connected to the second bracket 2, e.g. the first adjusting member may pass through a through hole of the light emitting housing 13 and be connected to the second bracket 2. Preferably, the first adjusting member 3 is an internal hexagonal cylindrical adjusting screw, by rotating the first adjusting member 3, so that the first adjusting member 3 applies an acting force to the second bracket 2, so that the second bracket 2 is driven to move in the Y direction as shown in fig. 3, more specifically, when the hexagonal screwdriver is used to rotate the first adjusting member 3 using the internal hexagonal cylindrical adjusting screw, the threaded hole of the second bracket 2 is in threaded connection with the first adjusting member 3, and in particular, the first adjusting member 3 only rotates around the axis thereof and does not move in the axial direction, so that the threaded hole is driven by the first adjusting member 3 to move along the axial direction of the first adjusting member 3 relative to the first adjusting member 3, so that the second bracket 2 moves in the Y direction as shown in fig. 3, and because the second bracket 2 is connected with the first bracket 1, the second bracket 2 is driven to move along the first direction while moving along the first direction under the driving of the first adjusting member 3, so as to drive the light-emitting lens to move, thereby realizing the adjustment of the light-emitting lens position. It is further known that, as described above, the second holder 2 can be caused to move in both the y+ and Y-directions as shown in fig. 3 when the first regulating member 3 is rotated in the forward and reverse directions by the hexagonal screwdriver.

Further, in order to make the force applied by the first adjusting member 3 to the second bracket 2 more stable and make the movement of the second bracket 2 more stable, the fine adjustment assembly further comprises a first elastic member 5, wherein the first elastic member 5 is preferably selected as a spring and is in a compressed state in an initial state, and the first elastic member 5 can provide a certain pre-tightening force to the second bracket 2. Specifically, one end of the first elastic member 5 is abutted against the second bracket 2, the other end of the first elastic member 5 can be abutted against the light-emitting housing 13, in addition, the other end of the first elastic member can be fixed by one end of a spring plate, the other end of the spring plate is fixed on the first bracket, a fulcrum is arranged between two ends of the spring plate, and the fulcrum is fixed with a certain component of the light-emitting housing or the projection device, so that one end of the spring plate can support the first elastic member and acts on the first elastic member together with the first adjusting member to increase or reduce the compression amount of the first elastic member, and the other end of the spring plate can generate corresponding deformation along with the movement of the first bracket. In addition, one end of the first elastic piece can be connected with the first bracket, the second bracket is provided with a through hole, and the other end of the first elastic piece passes through the through hole to be abutted with the light emergent shell. In summary, in order to realize that the second support moves under the action of the first adjusting member, as long as the other end of the first elastic member away from the second support is reliably fixed relatively, a certain preset moving distance of the second support in the axial length direction, i.e. the first direction, of the first elastic member is provided, and in the process that the first adjusting member drives the second support to move, the axial length of the first elastic member is correspondingly changed.

Thus, referring to fig. 2 and 3, in the case that one end of the first elastic member 5 abuts against the light-emitting housing 13, the first adjusting member 3 is rotated in a first direction (which may be understood as screwing the first adjusting member 3), so that the first adjusting member 3 drives the second bracket 2 to move in the Y-direction, so that the first elastic member 5 is further compressed by force, that is, the axial length of the first elastic member 5 is shortened, the second bracket 2 approaches the light-emitting housing 13 along the axial length direction of the first elastic member 5 under the action of the first adjusting member 3 and the first elastic member 5, and the first adjusting member 3 is rotated in a second direction opposite to the first direction (which may be understood as unscrewing the first adjusting member 3), so that the first adjusting member 3 drives the second bracket 2 to move in the y+ direction, so that the compressive force applied to the first elastic member 5 is reduced, so that the compressive deformation amount of the first elastic member 5 is reduced and the axial length of the second bracket 2 is increased along the axial length of the first elastic member 5, and the second bracket 2 approaches the light-emitting housing 13 along the axial length direction of the first elastic member 5 under the action of the first adjusting member 3 and the first elastic member 5.

In order to implement the axial length change of the first elastic member 5, in this embodiment, the first elastic member 5 is in a compressed state when being in the initial position, and when the first adjusting member 3 is screwed, the first elastic member 5 may be further compressed, and when the first adjusting member 3 is unscrewed, the compression force applied to the first elastic member 5 is reduced, so that the elastic deformation of the first elastic member 5 is reduced, and the axial length of the first elastic member 5 is prolonged.

It should be noted that, in this embodiment, the first adjusting member 3 and the first elastic member 5 may be used to adjust the light-emitting lens in the Y direction (corresponding to fig. 3, which is the up-down direction), and of course, the specific setting positions of the first adjusting member 3 and the first elastic member 5 are determined according to the actual use requirement.

It should be further noted that, in this embodiment, the optical element adjusting assembly may include two sets of first adjusting members 3 and first elastic members 5, so that one set of first adjusting members 3 and first elastic members 5 may adjust the light-emitting lens in the up-down direction, and the other set of first adjusting members 3 and first elastic members 5 may adjust the light-emitting lens in the left-right direction.

As a specific embodiment in which the first adjusting member 3 is connected to the second bracket 2, further, referring to fig. 2 and 3 in combination, the second bracket 2 is provided with a first bump 2a, the first bump 2a is provided with a first preformed hole 2b, in this embodiment, the first preformed hole 2b is provided as a threaded hole, and the first adjusting member 3 using the hexagon socket screw is in threaded connection with the first preformed hole 2b, and the first preformed hole 2b is driven by the first adjusting member 3 to move along the axial direction of the first adjusting member 3. Preferably, when the optical element adjusting assembly is provided with the first elastic member 5, the second bracket 2 is driven to move along the first direction by the combined action of the driving force of the first adjusting member 3 and the elastic restoring force of the first elastic member 5 on the second bracket 2, so that not only the first adjusting member 1 and the second bracket 2 are reliably connected, but also the first adjusting member 3 can stably and stably drive the second bracket 2 and the first bracket 1 to move, and thus, the position of the light-emitting lens mounted on the first bracket 1 in the first direction is accurately adjusted.

In order to achieve adjustment of the position of the light-emitting lens mounted on the first bracket 1 in the second direction perpendicular to the first direction, as a further improvement, the fine adjustment assembly further includes two limiting holes 2d, two protruding portions 1a and two second adjustment members 4, specifically, two protruding portions 1a are provided on the first bracket 1, two limiting holes 2d are provided on the second bracket, two protruding portions 1a are respectively provided in two limiting holes 2d, wherein the hole widths of the two limiting holes 2d are respectively larger than the width of the protruding portion 1a located therein, the above limiting holes 2d can be understood as a gap provided by the second bracket 2 for the movement of the protruding portion 1a in the second direction, and in this embodiment, one end of one limiting hole 2d in the second direction is open, and both ends of the other limiting hole 2d in the second direction are closed. The two protruding parts 1a are provided with second preformed holes 1b, the second adjusting piece 4 is correspondingly connected with the second preformed holes 1b, and preferably, the second adjusting piece 4 and the second preformed holes 1b are respectively a hexagon cylinder adjusting screw and a threaded hole which are in threaded connection. The protruding portion 1a can move along the limiting hole 2d in a second direction perpendicular to the first direction by pulling the two second adjusting members 4, so that the first bracket 1 is driven to move relative to the second bracket 2 in the second direction. For example, for one embodiment in which the second adjusting member 4 is connected to the second preformed hole 1b and is shifted, the light-emitting housing 13 has two first through holes corresponding to the two first preformed holes 2b, the two second adjusting members 4 can pass through the first through holes corresponding to the two first through holes and extend into the second preformed holes 1b, the second adjusting members 4 can be shifted to drive the first bracket 1 to move along the limiting hole 2d, and by providing the two protruding portions 1a and the two limiting holes 2d, the two second adjusting members 4 can extend into the corresponding second preformed holes 1b, and the two second adjusting members 4 can respectively adjust the first bracket 1 in the left direction and the right direction, that is, respectively enable the first bracket 1 to generate movements in the X-direction and the x+ direction as shown in fig. 3, so that the moment effect can be eliminated. Therefore, each protruding portion 1a can move along the width direction of the limiting hole 2d, that is, the second direction, and by adjusting the position of each protruding portion 1a, the position of the first bracket 1 relative to the second bracket 2 is adjusted, and the effect of adjusting the position of the light-emitting lens of the first bracket relative to the light beam incident through the bracket hole of the second bracket is also achieved, so that the accurate alignment of the central axis of the light lens and the central axis of the light-receiving part is ensured by adjusting the position of the light-emitting lens.

In this embodiment, the width of the limiting hole 2d is extended along the extending direction of the top of the second bracket 2, so that the adjustment of the left-right direction (corresponding to the X direction shown in fig. 3 with respect to the direction of the left-right hand of the user) of the light-emitting lens can be achieved. In addition, if the limiting hole 2d and the protruding portion 1a are provided on the side portion of the mounting bracket, the width direction of the limiting hole 2d extends along the extending direction of the side portion of the mounting bracket, and thus the light-emitting lens can be adjusted in the up-down direction (the direction from the top of the mounting bracket to the bottom thereof is the up-down direction, which is perpendicular to the left-right direction and corresponds to the Y direction shown in fig. 3).

It should be noted that, in this embodiment, the limiting hole 2d and the protruding portion 1a are respectively disposed at the top of the second bracket 2 and the first bracket 1, so as to adjust the light-emitting lens in the left-right direction, and of course, the limiting hole 2d and the protruding portion 1a may also be disposed at the bottom of the mounting bracket, so as to adjust the light-emitting lens in the left-right direction.

It should be further noted that, in the present embodiment, only the top portions of the second bracket 2 and the first bracket 1 are provided with the limiting hole 2d and the protruding portion 1a, and of course, other arrangement forms are not excluded, such as the top portion and the side portion of the mounting bracket are provided with the limiting hole 2d and the protruding portion 1a, the limiting hole 2d and the protruding portion 1a provided at the top portion of the mounting bracket can adjust the light-emitting lens in the left-right direction, and the limiting hole 2d and the protruding portion 1a provided at the side portion of the mounting bracket can adjust the light-emitting lens in the up-down direction.

It should be further noted that, in the present embodiment, the protruding portion 1a can only move along the width direction of the limiting hole 2d, so as to adjust the light-emitting lens in the left-right direction, and of course, the protruding portion 1a can also move along the length direction of the limiting hole 2d, so that the light-emitting lens can be adjusted in the up-down direction. Or the boss 1a can be moved only in the longitudinal direction of the limiting hole 2 d.

For the specific arrangement mode of the limiting hole 2d, the second bracket is further provided with a second protruding block 2e, and the limiting hole 2d is arranged between the first protruding block 2a and the second protruding block 2e, so that the whole structure of the mounting bracket is compact, and the space is saved. Further, the second bracket 2 is provided with a first bump 2a, two limiting holes 2d are separated by the first bump 2a, the first bump 2a is provided with a first preformed hole 2b, the light-emitting housing 13 is provided with a second through hole, the first preformed hole 2b and the second through hole are correspondingly arranged, the first adjusting member 3 penetrates through the second through hole to extend into the first preformed hole 2b and can adjust the movement of the first preformed hole 2b relative to the axial direction of the first adjusting member 3, therefore, the first adjusting member 3 and the second adjusting member 4 can be ensured to be exposed to the outer side of the same end part of the light-emitting housing 13, the installation is facilitated, and the adjustment of the light-emitting lens is facilitated.

Further, referring to fig. 2 in combination, the fine tuning assembly further includes a first locking member 6, the second bump 2e is provided with a third preformed hole 2f, the first locking member 6 is connected with the third preformed hole 2f and abuts against the first bracket 1, the first locking member 6 may be a screw, a bolt or an expanding wire, etc., the specific setting mode of the first locking member 6 is determined according to the actual use requirement, and the third preformed hole 2f may be a threaded hole. In this way, after the setting position of the first bracket 1 is adjusted in place by the second adjusting member 4, in order to avoid unnecessary change of the setting position of the first bracket 1, the free end of the first locking member 6 is passed through the third preformed hole 2f and pressed against a surface of the first bracket 1, by which the first bracket 1 can be fixed, preventing unnecessary displacement of the position of the first bracket 1.

In the above, the fine tuning assembly including the first adjusting member 3 and the second adjusting member 4 and the corresponding matching structures thereof are described in detail, it should be understood that the first adjusting member 3 and the corresponding matching structures thereof and the second adjusting member 4 and the corresponding matching structures thereof may be separately or simultaneously arranged according to actual needs, and in this embodiment, the fine tuning assembly of the optical element adjusting assembly simultaneously sets the first adjusting member 3 and the second adjusting member 4 and the corresponding matching structures thereof, wherein the axial direction of the first elastic member 5 is perpendicular to the moving direction of the protruding portion 1a along the limiting hole 2 d. Preferably, the protrusion 1a and the limiting hole 2d are used to adjust the light-emitting lens in the left-right direction, and the first elastic member 5 and the first adjusting member 3 are used to adjust the light-emitting lens in the up-down direction.

It should be noted that, in the present embodiment, the first adjusting member 3 and the second adjusting member 4 are both exposed to the outside of the top of the light-emitting housing 13, and of course, other arrangements, such as the first adjusting member 3 and the second adjusting member 4 are respectively exposed to the outside of the bottom and the outside of the side of the light-emitting housing 13, are not excluded from the actual use requirements.

In addition, in this embodiment, as a further improvement, the mounting bracket further includes a first positioning member 7, and referring to fig. 3 and 12 in combination, the first bracket 1 is provided with a first kidney-shaped positioning hole 1c, and the extending direction of the first kidney-shaped positioning hole 1c is parallel to the direction in which the boss 1a moves along the limiting hole 2d and the above-described second direction X; the first positioning component 7 is installed in the first kidney-shaped positioning hole 1c, and the first positioning component 7 is used for abutting the first bracket 1 to the second bracket 2; when the boss 1a moves along the limiting hole 2d, the first kidney-shaped positioning hole 1c moves along a second direction parallel to the moving direction of the boss 1a under the guide of the first positioning member 7. In this way, by arranging the first positioning component 7 and the first kidney-shaped positioning hole 1c, the first bracket 1 and the second bracket 2 can be ensured to be abutted against each other, and meanwhile, as the extending direction of the first kidney-shaped positioning hole 1c is parallel to the extending direction of the limiting hole 2d and the second direction X, when the boss 1a is shifted by the second adjusting component 4, the first bracket 1 moves along with the extending direction, at the moment, the arrangement position of the first positioning component 7 relative to the second bracket 2 is unchanged, and in the moving process of the first bracket 1, the moving direction of the first kidney-shaped positioning hole 1c relative to the first positioning component 7 is parallel to the moving direction of the boss 1a relative to the limiting hole 2 d.

It should be noted that, in the present embodiment, the first bracket 1 is provided with four first kidney-shaped positioning holes 1c, and it is needless to say that other setting numbers are not excluded according to actual use requirements.

Further, the mounting bracket further comprises a second positioning component 8, the second bracket 2 is provided with a second kidney-shaped positioning hole 2c, the second positioning component 8 is mounted in the second kidney-shaped positioning hole 2c, and the second positioning component 8 is used for abutting the second bracket 2 to the light-emitting shell 13; the second positioning member 8 is movable with respect to the second kidney-shaped positioning hole 2c along the extending direction of the second kidney-shaped positioning hole 2 c. The second kidney-shaped positioning hole 2c moves in a direction parallel to the first direction under the guidance of the second positioning member 8

Therefore, the second positioning assembly 8 can ensure that the mounting bracket is abutted with the light-emitting shell 13, and the connection tightness of the mounting bracket and the light-emitting shell is ensured. Since the extending direction of the second kidney-shaped positioning hole 2c is parallel to the axial length direction of the elastic member 5, when the first adjusting member 3 is screwed or unscrewed, the length of the elastic member 5 in the axial direction is changed, and at this time, the second positioning member 8 is fixed relative to the installation position of the light-emitting housing 13, the second bracket 2 moves along with it, and during the movement of the second bracket 2, the second kidney-shaped positioning hole 2c moves relative to the second positioning member 8.

It should be noted that, in the present embodiment, the second bracket 2 is provided with four second kidney-shaped positioning holes 2c, and each second kidney-shaped positioning hole 2c has a second positioning component 8 corresponding to it, which, of course, does not exclude other numbers.

In a further scheme, referring to fig. 12 in combination, the first positioning component 7 and the second positioning component 8 each comprise a fastening piece 9, an adjusting mechanism spring 10 and a gasket 11, the adjusting mechanism spring 10 and the gasket 11 are sleeved on the periphery of the fastening piece 9, and the adjusting mechanism spring 10 and the gasket 11 are placed in the corresponding first kidney-shaped positioning hole 1c and the second kidney-shaped positioning hole 2 c.

In this way, by using the adjusting mechanism spring 10 and the spacer 11, the fastener 9 can be ensured to be clamped in the corresponding first kidney-shaped positioning hole 1c and second kidney-shaped positioning hole 2c, and the tightness of the connection between the first bracket 1 and the second bracket 2 and the tightness of the connection between the second bracket 2 and the light-emitting housing 13 are realized.

The fastener 9 is preferably a contour screw, although other arrangements are not excluded.

It should be further noted that, in this embodiment, the specific types of the adjustment mechanism spring 10 and the spacer 11 are determined according to the arrangement of the fastener 9 and the positioning hole.

Second embodiment of optical element adjusting Assembly

In the case where the content of the structure and the like described in the above-described first embodiment does not conflict with the content of the structure and the like described in the above-described first embodiment, the content of the structure and the like described in the above-described first embodiment can also be applied to the present embodiment, and the detailed description is omitted, and the differences of the optical element adjusting assembly of the second embodiment with respect to the optical element adjusting assembly of the first embodiment will be mainly described in detail below. In this embodiment, as described in detail below, the optical element adjusting assembly is described in detail by using a mounting bracket mounted on a support body (described in detail below) as a preferred mounting manner and the optical element is a light-emitting lens, and the support body is similar to the light-emitting housing described above, and both are used for mounting the optical element adjusting assembly to realize that the light beam further precisely exits to a downstream light receiving component such as a square bar, a light valve or a projection lens after passing through the optical element adjusted by the optical element adjusting assembly.

In this embodiment, an optical element adjustment assembly includes a mounting bracket having a mounting hole for mounting an optical element and a fine adjustment assembly; the fine tuning assembly is arranged on the mounting bracket and used for adjusting the position of the mounting bracket. In this way, when the optical element is mounted in the mounting hole provided in the mounting bracket during assembly, the mounting position of the mounting bracket can be adjusted by adjusting the fine adjustment assembly, so that the purpose of adjusting the position of the optical element can be achieved, and therefore, the central axis of the optical element and the central axis of the light receiving component positioned at the downstream of the optical element can be ensured to be accurately aligned.

As a preferred embodiment, referring specifically to fig. 4 to 12 and referring back to fig. 4 and 7, the mounting bracket of the optical element adjusting assembly provided in this embodiment includes a first bracket 100 and a second bracket 200, wherein the first bracket 100 is provided with a mounting hole (not labeled) for mounting the light emitting lens 600, and the first bracket 100 is connected to the second bracket 200. The second holder 200 is provided with a holder hole (not labeled) opposite to the mounting hole, and the first holder 100 is located at a downstream side of the second holder 200 with respect to a transmission direction of the light beam through the optical element adjustment assembly, so that the light beam is incident from the holder hole of the second holder 200 to the light-emitting lens 600 mounted in the mounting hole and further emitted after passing through the second holder 200 during transmission. The fine adjustment assembly includes a first adjustment member 210, the first adjustment member 210 being coupled to the second bracket 200, for example, the first adjustment member 210 may pass through a through hole of the holder body and be coupled to the second bracket 200. Preferably, the first adjusting member 210 is an internal hexagonal cylinder adjusting screw, the second bracket 200 is provided with a threaded hole in threaded connection with the first adjusting member 210, by rotating the first adjusting member 210, so that the first adjusting member 210 applies a force to the second bracket 200, the second bracket 200 is driven to drive the first bracket 100 to move in a first direction, more specifically, the first adjusting member 210, such as the internal hexagonal cylinder adjusting screw, is rotated by a hexagonal screwdriver, when the first adjusting member 210 is arranged to rotate only around its axis and does not move in an axial direction, the threaded hole on the second bracket 200 is driven by the first adjusting member 210 to move along the axial direction of the first adjusting member 210, so that the second bracket 200 moves in a Y direction as shown in fig. 4, and because the second bracket 200 is connected with the first bracket 100, the second bracket 200 is driven to move along the first direction while driving the first bracket 100 to move together, so as to drive the lens to move along the Y direction, thereby realizing the position adjustment of the lens 600. It is further understood that, as described above, the first adjusting member 210 is rotated in both the forward and reverse directions by the hexagonal screwdriver, so that the second bracket 200 moves in both the y+ and Y-directions as shown in fig. 4. Further, in the present embodiment, the first bracket 100 and the second bracket 200 are both substantially rectangular body plates, wherein the second bracket 200 has an inner recess 201, the inner recess 201 is configured to accommodate a portion of the first bracket 100, and an open rectangular hollow body is formed by the inner recess 201, the rectangular hollow body includes a pair of opposite first surfaces 202 and a supporting surface 203 opposite to the opening, the first bracket 100 is inserted into the inner recess 201 from the opening, the supporting surface 203 supports the second bracket 200, and a distance between the pair of first surfaces 202 in a second direction (to be further described below) is set to satisfy a moving distance of the first bracket 100 relative to the second bracket 200 in the second direction. It should be appreciated that the first bracket 100 and the second bracket 200 may be configured as plate members with other shapes according to actual needs.

Further, referring to fig. 4 and 6 in combination, in order to make the force applied by the first adjusting member 210 to the second bracket 200 more stable and make the movement of the second bracket 200 more stable, the fine adjustment assembly further includes a first elastic member 230, and the first elastic member 230 is preferably selected to be a spring and is initially in a compressed state, and the first elastic member 230 may provide a certain pre-tightening force to the second bracket 200. Specifically, one end of the first elastic member 230 is abutted against the second bracket 200, the other end of the first elastic member 230 may be abutted against the support body, in addition, the other end of the first elastic member 230 may be fixed by one end of a spring plate, the other end of the spring plate is fixed on the first bracket, a fulcrum is disposed between two ends of the spring plate, and the fulcrum is fixed with the support body or a certain component of the projection device, so that one end of the spring plate may support the first elastic member and act on the first elastic member together with the first adjusting member to increase or decrease the compression amount thereof, and the other end of the spring plate may generate corresponding deformation along with the movement of the first bracket. In addition, one end of the first elastic piece can be connected with the first bracket, the second bracket is provided with a through hole, and the other end of the first elastic piece passes through the through hole to be abutted against the support body. In summary, in order to realize the movement of the second bracket 200 under the action of the first adjusting member 210, it is only required that the other end of the first elastic member 230, which is far from the second bracket 200, is reliably fixed relatively, so as to provide a certain preset movement distance of the second bracket 200 in the axial length direction of the first elastic member 230, and the axial length of the first elastic member 230 is correspondingly changed when the first adjusting member 210 drives the second bracket 200 to move.

Specifically, referring to fig. 4, 6 and 8 in combination, in the case that one end of the first elastic member 230 is abutted against the holder body 310, by rotating the first adjustment member 210 in a positive direction (which may be understood as screwing the first adjustment member 210), the first adjustment member 210 drives the second bracket 200 to move in the Y-direction, so that the first elastic member 230 is further compressed, i.e., the axial length of the first elastic member 230 is shortened, the second bracket 200 approaches the holder body 310 in the axial length direction of the first elastic member 230 by the first adjustment member 210 and the first elastic member 230, and by rotating the first adjustment member 210 in a reverse direction to the positive direction (which may be understood as unscrewing the first adjustment member 210), the first adjustment member 210 drives the second bracket 200 to move in the y+ direction, so that the compressive force applied to the first elastic member 230 is reduced, so that the compressive deformation amount of the first elastic member 230 is reduced and the axial length of the second bracket 200 is increased in the axial length direction of the first elastic member 230 is further away from the holder body 310 by the first adjustment member 210 and the first elastic member 230.

Referring to fig. 4, 7 and 9 in combination, as a specific embodiment in which the first adjusting member 210 is connected to the second bracket 200, further, the second bracket 200 is provided with a first platen 221 and a first boss 220 which are connected, and the second bracket 200 is provided with a first preformed hole 222 penetrating the first platen 221 and extending into the first boss 220, specifically, in the case that the first bracket 100 and the second bracket 200 are both substantially rectangular plate members, the first boss 220 is integrally formed with the second bracket 200 by extending the second bracket 200 along the first direction with the second surface 204 being flush with the opening, the first boss 220 is substantially in the shape of a solid rectangular plate, the first platen 221 is a planar plate body opposite to the second surface 204, and in this embodiment, the first platen 221 is integrally formed with the first boss 220 and integrally connected, in addition, the first platen may be separately connected to the first boss in a separate structure by being engaged with the screw hole. In the present embodiment, the portion of the first preformed hole 222 located in the first boss 220 is provided as a threaded hole, and in addition, the portion of the first preformed hole 222 located in the first platen 22 may be provided as a threaded hole or a through hole, so that the first adjusting member 210, for example, an internal hexagonal cylindrical adjusting screw, is screwed with the first preformed hole 222, and the first preformed hole 222 is moved in the axial direction of the first adjusting member 210 by the first adjusting member 210. Preferably, when the optical element adjusting assembly is provided with the first elastic member 230, the second bracket 200 is driven to move together with the first bracket 100 along the first direction by the interaction of the first adjusting member 210 and the first elastic member 230, so that not only is the first adjusting member 210 reliably connected with the second bracket 200, but also the first adjusting member 210 can stably and smoothly drive the second bracket 200 and the first bracket 100 to move, thereby accurately adjusting the position of the light-emitting lens 600 mounted on the first bracket 100 along the first direction.

Referring to fig. 4, 7 and 8 in combination, in order to achieve adjustment of the position of the light-emitting lens 600 mounted on the first bracket 100 in the second direction perpendicular to the first direction, as a further improvement, the fine adjustment assembly further includes a second adjustment member 110, and in particular, the second bracket 200 includes a second boss 250 and a second platen 251 fixedly connected, that is, the second boss 250 and the second platen 251 are of a separate structure, and the fixed connection may be achieved by using a detachable connection of a screw and a threaded hole. The second platen 251 is provided with a first through opening 252, the first through opening 252 is preferably a through circular hole, the second platen 250 is provided with a first stepped hole 253 opposite to the first through opening 252, the first stepped hole 253 includes a first via 253A, a first counter bore 253B opposite to the first bracket 100, and a first stepped surface 253C located between the first via 253A and the first counter bore 253B, wherein the first via 253A is preferably a light hole. The first bracket 100 is provided with a third preformed hole 120 opposite to the first via 253A, the second adjusting member 110 includes a second adjusting head 111 and a second adjusting rod 112, the second adjusting head 111 is disposed in the first counter bore 253B, the second adjusting rod 112 is connected with the third preformed hole 120 through the first via 253A, and similar to the first adjusting member 210 and the first preformed hole 222, the second adjusting member 110 and the third preformed hole 120 are preferably provided as a hexagon socket adjusting screw and a threaded hole in threaded connection. The size of the first through opening 252 is smaller than that of the second adjusting head 111, that is, the second adjusting head 111 cannot be separated from the first through opening 252, if the position of the second adjusting member 110 in the axial direction, that is, the second direction, is limited by the abutment of the first stepped surface 253C or/and the second platen 251 on the second adjusting head 111, when the second adjusting member 110 is rotated by passing through the first through opening 252 through the screwdriver, the moving distance (the maximum moving distance is the distance between the first stepped surface 253C and the second platen 251 in the second direction) of the second adjusting member 110 in the axial direction is limited, the second adjusting member 110 only rotates around the axis thereof and does not move in the axial direction, according to the relative motion, the third preformed hole 120 moves along the axial direction of the second adjusting member 110, and the second bracket 100 is driven by the second adjusting member 110 to move in the X direction perpendicular to the Y direction, that is, as shown in fig. 4, of the second bracket 200, so that the position of the second adjusting member 200 can be accurately adjusted relative to the central axis of the second lens 600 by rotating the second bracket 200 in the opposite directions, and the opposite direction of the first bracket 200, and the position of the second lens 600 can be adjusted by using the two opposite axial directions of the first bracket 200, and the opposite direction of the central axis of the second lens 200.

Referring to fig. 7 and 9 in combination, in order to fix the position of the first bracket 100 in the second direction, the fine adjustment assembly further includes a first locking member 240, the second bracket 200 is provided with a second preformed hole 223 penetrating the first platen 221 and the first boss 220, the first locking member 240 is connected with the second preformed hole 223 and abuts against the first bracket 100, the first locking member 240 may be a screw, a bolt, an expansion wire, or the like, and the corresponding second preformed hole 223 may be a threaded hole. In this way, when the setting position of the first bracket 100 is adjusted in place in the second direction by the second adjusting member 110, in order to avoid unnecessary change of the setting position of the first bracket 100, the position of the first bracket 100 can be prevented from being unnecessarily changed by fixing the first bracket 100 by means of the pressing force by passing the free end of the first locking member 240 through the second preformed hole 223 and pressing against one surface of the first bracket 100.

Further, referring to fig. 4 in combination, in order to make the force applied by the second adjusting member 110 to the first bracket 100 more stable and make the movement of the first bracket 100 more stable, the fine adjustment assembly further includes a second elastic member 130, where the second elastic member 130 is preferably selected to be a spring and is in a compressed state in an initial state, and the second elastic member 130 may provide a certain pre-tightening force to the first bracket 100. Specifically, a first concave hole (not shown) is provided at a free end of the first bracket 100 opposite to the second boss 250, and correspondingly, a retaining plate 260 opposite to the first concave hole is provided at the second bracket 200, the retaining plate 260 is disposed adjacent to the first surface 202, preferably, the first concave hole and the retaining plate 260 are two, and the two first concave holes and the retaining plate 260 are symmetrically disposed with respect to a radial line passing through a center of the mounting hole of the first bracket 100 and a radial line passing through a center of the bracket hole of the second bracket 200 along the second direction. One end of the second elastic member 130 is disposed in the first recess, and the other end is abutted against the abutment plate 260, so that the second elastic member 130 is compressively disposed between the first recess and the abutment plate 260 in the second direction, and thus, when the first bracket 100 moves under the action of the second adjusting member 110, the second elastic member 130 is reliably disposed between the first bracket 100 and the second bracket 200 to provide a certain predetermined moving distance of the first bracket 100 in the axial length direction of the second elastic member 130, i.e., the second direction, and the axial length of the second elastic member 130 is correspondingly changed in the process that the second adjusting member 110 drives the first bracket 100 to move. It is understood that the first recess and the retaining plate 260 may be disposed on the second bracket 200 and the first bracket 100, respectively.

Further, referring to fig. 5 to 11 in combination, the optical element adjustment assembly further includes a holder assembly 300, the holder assembly 300 includes a holder body 310, and the first holder 100, the second holder 200, and the fine adjustment assembly are received in a receiving cavity 311 of the holder body 310, it should be appreciated that the holder body 310 has a light-transmitting structure (not shown) allowing a light beam to be incident into a holder hole of the second holder 200. The support body 310 includes a first adjusting hole 312 and a first support plate 314, the first support plate 314 is disposed in the first adjusting hole 312, a second stepped hole 315 is disposed on the first support plate 314, the second stepped hole 315 includes a second via hole 315A, a second counter bore 315B opposite to the second support 200, and a second stepped surface 315C located between the second via hole 315A and the second counter bore 315B, wherein the second via hole 315A is preferably a light hole. The first adjusting member 210 includes a first adjusting head 211 and a first adjusting rod 212, the first adjusting head 211 is disposed in the second counter bore 315B, the first adjusting rod 212 is connected with the first pre-formed hole 222 through the second through hole 315A, the support body 310 further includes a cover plate 320 fixedly connected with the first support plate 314 and having a second through opening 321, the size of the second through opening 321 is smaller than that of the first adjusting head 211, that is, the first adjusting head 211 cannot enter the second through opening 321, so that the position of the first adjusting member 210 in the axial direction thereof, i.e., the first direction, is limited by the abutment of the second stepped surface 315C or/and the cover plate 320 against the first adjusting head 211, and therefore, when the first adjusting member 210 is rotated by the screwdriver through the first adjusting hole 312 and the second through opening 321, since the moving distance of the first adjusting member 210 in the axial direction thereof (the maximum moving distance is the distance between the second stepped surface 315C and the cover plate 320 in the first direction) is limited, the first adjusting member 210 is driven to move only in the axial direction around the first adjusting member 210 in the axial direction according to the relative movement of the first adjusting member 210 in the axial direction, and the first adjusting member 210 is not driven in the axial direction according to the first adjusting member's direction. Preferably, under the combined action of the driving force of the first adjusting member 210 and the elastic restoring force of the first elastic member 230, the second bracket 200 drives the first bracket 100 to move together along the first direction, so that by adjusting the first adjusting member 210, the position of the second bracket 200 relative to the support body 310 can be adjusted, and the effect of adjusting the position of the lens of the first bracket 100 relative to the light beam incident through the frame hole of the second bracket 200 is achieved, thereby ensuring that the central axis of the optical lens 600 and the central axis of the light receiving part located downstream of the optical lens 600 are accurately aligned by adjusting the position of the optical lens 600. It should be noted that, for example, the corresponding fitting structure may be provided in the projection apparatus mounted with the optical element adjusting assembly of the present embodiment to achieve the function of the first adjusting member 210, for example, two split protrusions capable of being relatively displaced may be provided in a housing of the projection apparatus, and the two protrusions are hollow cylinders, and the first adjusting member includes a first adjusting head and a first adjusting rod, wherein, firstly, the first adjusting rod is inserted into one hollow cylinder, then the other hollow cylinder is moved and fixed, so that the first adjusting head is limited or pressed by a free end of the other hollow cylinder, and a hollow portion of the other hollow cylinder is inserted by a screwdriver to adjust the first adjusting head.

Referring to fig. 7 and 9 in combination, further, a first through hole 313 adjacent to the first support plate 314 is provided in the first adjusting hole 312, the fine adjustment assembly further includes a first locking member 240, the second bracket 200 is provided with a second preformed hole 223 penetrating through the first platen 221 and the first boss 220, the first locking member 240 is connected with the second preformed hole 223 and presses against the first bracket 100, preferably, the first locking member 240 may be a screw, a bolt, a wire, or the like, the second preformed hole 223 is a screw hole, the first through hole 313 is opposite to the second preformed hole 223, and the first locking member 240 is connected with the second preformed hole 223 through the first through hole 313. Preferably, the inner diameter of the first through hole 313 is slightly larger than the outer diameter of the screwdriver, so that the operation of the screwdriver is guided and limited. Therefore, when the first locking member 240, such as a screw, is locked by using, for example, a screwdriver, the screwdriver passes through the first through hole 313 and rotates the screw to press the screw against the first support 100, so that a friction force for preventing the first support 100 from moving in the second direction can be generated by the pressing force of the screw against the first support 100, thereby preventing the first support 100 from being accidentally changed in the second direction, and keeping the first support 100 at a desired position in the second direction for ensuring that the light beam is accurately emitted through the light-emitting lens.

Referring to fig. 5 and 7 in combination, in order to enhance the sealing performance of the optical element adjustment assembly, the holder assembly 300 further includes a first sealing plate 330 fixedly coupled to the holder body 310 to seal the first adjustment opening 312, and preferably, the first sealing plate 330 is screw-fixed to the holder body 310.

Further, referring to fig. 7 and 8 in combination, in order to prevent the unexpected change of the position of the second holder 200 in the first direction, to maintain the second holder 200 in a desired position in the first direction to ensure the accurate exit of the light beam through the light-exiting lens 600, the micro-adjustment assembly further includes a second locking member 340, the holder body 310 further includes a second adjustment hole 316 and a second support plate 318, the second support plate 318 is disposed in the second adjustment hole 316, a fourth pre-hole 319 is disposed on the second support plate 318, the second locking member 340 abuts against a portion of the second platen 251 except the first through-hole 252 through the fourth pre-hole 319, preferably, the second locking member 340 may be a screw, a bolt, a wire, or the like, and the fourth pre-hole 319 is a screw hole, so that the screw threadedly connected with the fourth pre-hole 319 may be rotated by passing the second adjustment hole 316 by a screwdriver, so that the screw abuts against a portion of the second platen 251 except the first through-hole 252, and the frictional force that resists the movement of the second holder 200 in the first direction is generated by the pressing force of the screw against the portion of the second platen 251 except the first through-hole 252. As described above, when the optical element adjustment assembly of the present embodiment is provided with the first locking member 240 and the second locking member 340 at the same time, since the actions of the first locking member 240 and the second locking member 340 are independent of each other, the second bracket 200 can still perform the positional adjustment in the first direction when the first locking member 240 locks the first bracket 100 and the second locking member 340 does not lock the second bracket 200; when the second locking member 340 locks the second bracket 100 and the first locking member 240 does not lock the first bracket 100, the first bracket 200 can still perform the position adjustment in the second direction, thereby helping to precisely adjust the position of the light-emitting lens 600.

The upper and right set screws can be locked after the upper, lower, left and right positions are adjusted. In the patent, if the set screw in the up-down direction is locked, left-right adjustment can be performed, and the set screw is relatively independent; after the set screw in the left-right direction is locked, the up-down adjustment can be performed.

Preferably, referring to fig. 7 and 8 in combination, the second adjusting hole 316 is provided with a second through hole 317 adjacent to the second support plate 318, the second through hole 317 is opposite to the third preformed hole 120, the second adjusting member 110 passes through the second through hole 317 and is inserted into the first stepped hole 253 and is further connected to the third preformed hole 120, specifically, when the second adjusting member 110 such as a screw is rotated by a screwdriver, the second boss 250 is not fixedly connected to the second platen 251, so that the screwdriver passes through the second through hole 317 and rotates the screw to adjust the movement of the third preformed hole 120 in the second direction, and after the third preformed hole 120 is adjusted so that the first support is at the desired position, the second boss 250 is fixedly connected to the second platen 251, thereby realizing the limitation of the movement distance of the first adjusting member 110 in the axial direction thereof. Preferably, the inner diameter of the second through hole 317 is set to be slightly larger than the outer diameter of the screwdriver, so that there is a certain guiding and limiting effect on the operation of the screwdriver.

Referring to fig. 5 and 7 in combination, in order to enhance the sealing performance of the optical element adjustment assembly, the holder assembly 300 further includes a second sealing plate 350 fixedly coupled to the holder body 310 to seal the second adjustment opening 316, and preferably, the second sealing plate 350 is screw-fastened to the holder body 310.

Referring to fig. 5 and 7 in combination, in order to further improve the sealing performance of the optical element adjustment assembly, the holder assembly 300 further includes a third sealing plate 360 fixedly coupled to the holder body 310 to seal the first and second holders 100 and 200 and the fine adjustment assembly in the receiving cavity 311, and a light transmitting structure is provided at a region of the third sealing plate corresponding to the light emitting lens 600. Preferably, the third sealing plate 360 is fixed to the support body 310 by screw fixing.

Referring to fig. 4 and 6 in combination, as a specific embodiment for providing the first elastic member 230, the first elastic member 230 is compressively disposed between the support body 310 and the second bracket 200, for example, opposite grooves similar to the first concave holes described above may be provided on opposite surfaces of the support body 310 and the second bracket 200, and both ends of the first elastic member 230 are respectively inserted into the grooves, thereby achieving good fixation of both ends of the first elastic member 230 and ensuring smoother movement of the second bracket 200. As the first preliminary hole 222 is moved in the axial direction of the first adjustment member 210 by the first adjustment member 210, the length of the first elastic member 230 in the first direction is increased or decreased, and preferably, the first elastic member 230 is arranged in a pair with respect to a radial line passing through the center of the shelf hole of the second bracket 200 in the first direction.

Referring to fig. 4, 7 and 12 in combination, according to any one of the embodiments of the optical element adjustment assembly in the second embodiment, the optical element adjustment assembly further includes a first positioning assembly 400, the first bracket 100 is provided with a first kidney-shaped positioning hole 140, the second bracket 200 is provided with a first fixing hole (not shown), an extending direction of the first kidney-shaped positioning hole 140 is parallel to the second direction, the first positioning assembly 400 is fixedly connected with the first fixing hole through the first kidney-shaped positioning hole 140, the first positioning assembly 400 is used to abut the first bracket 100 to the second bracket 200, and when the first bracket 100 moves in the second direction relative to the second bracket 200, the first kidney-shaped positioning hole 140 moves in the second direction under the guidance of the first positioning assembly 400.

Further, referring to fig. 4, 6, 7 and 12 in combination, for the embodiment in which the optical element adjustment assembly further includes the second positioning assembly 500, the second bracket 200 is provided with the second kidney-shaped positioning hole 223, the holder body 310 is provided with the second fixing hole (not shown), and the extending direction of the second kidney-shaped positioning hole 223 is parallel to the first direction; the second positioning assembly 500 is fixedly connected with the second fixing hole through the second kidney-shaped positioning hole 223, and the second positioning assembly 500 is used for abutting the second bracket 200 to the support body 310, when the second bracket 200 moves along the first direction relative to the first bracket 100, the second kidney-shaped positioning hole 223 moves along the first direction under the guidance of the second positioning assembly 500.

Referring to fig. 12, in a preferred embodiment of the first positioning assembly 400 and the second positioning assembly 500, both include a fastening member 410, 510, an adjusting mechanism spring 420, 520 and a spacer 430, 530, the adjusting mechanism spring 420, 520 and the spacer 430, 530 are sleeved on the periphery of the fastening member 410, 510, and the adjusting mechanism spring 420, 520 and the spacer 430, 530 are disposed in the first kidney-shaped positioning hole 140 or the second kidney-shaped positioning hole 223, the fastening member 410, 510 is connected and fixed, and the adjusting mechanism spring 420, 520 and the spacer 430, 530 are applied with elastic pressing force.

It should be noted that, since the first positioning assembly 400 and the second positioning assembly 500 are similar to the first positioning assembly 7 and the second positioning assembly 8 described in the first embodiment, the detailed description is made with reference to the corresponding contents above, and the detailed description is omitted herein.

In addition, referring to fig. 3 and 4 in combination, the optical element adjustment assembly in the present embodiment and the above-described first embodiment may further include a pressing piece 12, 150, where the pressing piece 12, 150 is disposed at a circumferential outer edge of the mounting hole of the first bracket 1, 100; the press plate 12, 150 is connected to the first bracket 1, 100 by means of a connection, such as a screw. In this way, by providing the pressing pieces 12, 150, it is possible to facilitate the mounting of the light-emitting lens to the mounting hole and to secure the tightness of the mounting of the light-emitting lens.

The dimensions of the pressing piece 12, 150 correspond to the dimensions of the mounting hole, so that the tightness of the mounting of the light-emitting lens can be ensured. In addition, the pressing piece 150 includes at least two arc portions distributed along the circumference of the mounting hole of the first bracket 100 for mounting the light-emitting lens. Thus, the pressing sheet 150 is configured in a multi-stage structure, and the gap between the arc portions is adjusted, so that the problem that the size of the light-emitting lens is inconsistent with the size of the mounting hole due to production errors, and the mounting cannot be performed can be avoided.

It should be noted that, the pressing sheet 150 is provided with three arcuate portions, and it is needless to say that other numbers are not excluded according to the actual situation.

Light emitting module embodiment

As another object of the present invention, the present invention further provides a light emitting module, which includes the optical element adjusting assembly in any of the embodiments of the optical element adjusting assembly, and the optical element adjusting assembly is described in detail hereinabove, so that the detailed description thereof is omitted herein. The light emitting module further comprises a light emitting lens as an optical element of which the position is adjusted by the optical element adjusting assembly, and due to the adoption of the optical element adjusting assembly, light beams can be emitted to the downstream light receiving component accurately with little loss through the light emitting lens.

Projection device embodiments

As still another object of the present invention, the present invention further provides a projection apparatus, which includes the optical element adjusting assembly according to any one of the embodiments of the optical element adjusting assembly, and the optical element adjusting assembly is described in detail hereinabove, so that the description thereof is omitted herein. The projection device further comprises a light source component, the light beam generated by the light source component is further transmitted to a downstream light receiving component through an optical element of the optical element adjusting component so as to be finally projected onto a screen through a projection lens, and the optical element adjusting component is adopted, so that the light beam can be seldom lost through the optical element and accurately emitted to the downstream optical element, for example, in a specific embodiment, the optical element is a light emitting lens, the downstream light receiving component is a square rod, the central axis of the light emitting lens after position adjustment is parallel to the central axis of the light rod, and therefore, the loss of the light beam entering the square rod is reduced, and the light beam is projected through the projection lens with reduced loss, so that the projection device is guaranteed to have high projection quality. The projection device may be a projector, a laser television, a micro projector, a cinema, or the like.

The foregoing is a further detailed description of the invention in connection with specific embodiments, and it is not intended that the invention be limited to such description. It will be apparent to those skilled in the art that several simple deductions or substitutions can be made without departing from the spirit of the invention. In addition, the technical solutions of the embodiments may be combined with each other, for example, with reference to the above related description, the corresponding structures of the first boss and the support assembly matched with the first adjusting member and the first locking member, and the corresponding structures of the second boss and the support assembly matched with the second adjusting member and the second locking member may be interchanged and exchanged, that is, the corresponding structures of the first boss and the support assembly are applied to the corresponding structures of the first boss and the support assembly matched with the second adjusting member and the second locking member, and the corresponding structures of the second boss and the support assembly are applied to the corresponding structures of the first boss and the first locking member matched with the first adjusting member, but must be based on the fact that those skilled in the art can realize that when the technical solutions are combined in contradiction or cannot be realized, the combination of the technical solutions should not exist, and is not within the scope of protection required by the present invention.

In the present invention, unless explicitly specified and limited otherwise, the term "trim" in "trim assembly" is merely intended to illustrate that the mounting bracket and thus the optical element may be finely adjusted, but is not limited to a specific degree of adjustment, and the term "generally" is intended to be an overview description of the shape and the like, not a precise limitation. The terms "coupled," "secured," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally formed, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a technical feature defining "first", "second", etc. may include one or more such feature, either explicitly or implicitly. In addition, the "first direction" and the "second direction" described and shown in the drawings are respectively described by taking the vertical or up-down direction, the horizontal or left-right direction as an example, but the first direction and the second direction may be corresponding other directions according to the actual working condition of the lens adjusting module, and in addition, the terms of the description of the azimuth of up, down, left, right and the like in this document are only described more clearly for specific drawings, and should not be construed in a limiting manner. Thus, the specific meaning of the above terms and technical features in the present invention can be understood by those skilled in the art according to specific circumstances.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An optical element adjustment assembly, comprising:

the mounting bracket is provided with a mounting hole for mounting the optical element, the mounting bracket comprises a first bracket and a second bracket, the first bracket is provided with the mounting hole for mounting the optical element, the second bracket is provided with a bracket hole opposite to the mounting hole, and the first bracket is connected with the second bracket;

the first bracket is provided with two protruding parts, and the two protruding parts are provided with second preformed holes; two limiting holes are formed in the second bracket; the two protruding parts are respectively arranged in the two limiting holes;

The fine adjustment assembly is used for adjusting the position of the mounting bracket; the fine adjustment assembly comprises a first adjusting piece and two second adjusting pieces, the first adjusting piece is connected with the second bracket, and the acting force applied to the second bracket by the first adjusting piece drives the second bracket to drive the first bracket to move in a first direction; the second adjusting piece is correspondingly connected with the second preformed hole, one of the two second adjusting pieces is respectively poked to enable the two protruding parts to move along the two limiting holes in a second direction perpendicular to the first direction and in the opposite direction, so that the first bracket is driven to move relative to the second bracket in the second direction.

2. An optical element adjustment assembly as recited in claim 1, wherein:

the fine adjustment assembly further comprises a first elastic piece, the first elastic piece extends along the first direction, a free end of the first elastic piece is abutted to the second support, and the length of the first elastic piece in the first direction is increased or shortened in the process that the first adjustment piece applies acting force to the second support.

3. An optical element adjustment assembly as recited in claim 2, wherein:

the second support is provided with first lug, first lug is provided with first preformed hole, first regulating part with first preformed hole is connected, first preformed hole is in first regulating part drive down along the axial direction of first regulating part removes.

4. An optical element adjustment assembly as recited in claim 3, wherein:

the second bracket is also provided with a second lug, and one limiting hole is arranged between the first lug and the second lug.

5. An optical element adjustment assembly as recited in claim 4, wherein:

the fine adjustment assembly further comprises a first locking piece, a third reserved hole is formed in the second protruding block, and the first locking piece is connected with the third reserved hole and abuts against the first support.

6. An optical element adjustment assembly according to any one of claims 1-5, characterized in that:

the optical element adjusting assembly further comprises a first positioning assembly, the first support is provided with a first kidney-shaped positioning hole, the second support is provided with a first fixing hole, the extending direction of the first kidney-shaped positioning hole is parallel to the second direction, the first positioning assembly is fixedly connected with the first fixing hole through the first kidney-shaped positioning hole, the first positioning assembly is used for abutting the first support to the second support, and when the first support moves relative to the second support along the second direction, the first kidney-shaped positioning hole moves along the second direction under the guidance of the first positioning assembly.

7. The light emitting module comprises the optical element, wherein the optical element is a light emitting lens, and the light emitting module is characterized in that:

further comprising an optical element adjustment assembly as claimed in any one of claims 1 to 6.

8. Projection equipment, including light source subassembly, its characterized in that: