Device for adjusting light-emitting center point of light source of light engine and projector thereof

Abstract

The utility model discloses a device for adjusting a light-emitting central point of a light source of a light engine and a projector thereof. The device comprises a lens supporting shell, a lens ring module, a lens elastic sheet, an adjusting cover plate, an adjusting plate and a three-point fine-tuning lens ring module, the first adjusting screw, the second adjusting screw and the adjusting spring form a three-point fine adjustment lens ring module, the first adjusting screw and the second adjusting screw are matched with the adjusting spring to perform fine adjustment on the position of the lens ring module in the X-Y plane, and therefore fine adjustment of the light emitting center point position of the light source is achieved, the structure is simple, adjusting precision is high, stability is good, and practicability is high. The problem that the light emitting center point of a light source is difficult to adjust in the prior art can be effectively solved. After fine adjustment is completed, the lens ring module is fixed through a first locking screw arranged on the top face and a second locking screw arranged on the lower bottom face of the lens supporting shell, the structural stability of the lens ring module is determined, and meanwhile the lens ring module is prevented from deviating due to vibration or temperature change in the later use process; and good vibration resistance and temperature change resistance are achieved.

Description

Technical Field

[0001] This utility model relates to the field of light emission from a projector light engine, and in particular to a device for adjusting the center point of light emission from a light engine. Background Technology

[0002] In a projector's light engine, the light engine is divided into an optical engine module and a light source module. The position of the light source emission center point in the part where the optical engine module and the light source module are combined has a significant impact on the light path adjustment and imaging quality.

[0003] In existing technologies, adjusting the light emission center point of a light source typically relies on complex optical components or fixed structures, making precise and rapid adjustment difficult, and resulting in complex structures and high costs. Furthermore, existing adjustment mechanisms often lack stability, easily causing the light emission center point to shift due to vibration or temperature changes, affecting projection quality. Therefore, there is an urgent need for a mechanical structure that is simple in structure, has high adjustment accuracy, and good stability to solve these problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a device for adjusting the light emission center point of a light engine source, which addresses the shortcomings of the prior art. This mechanical structure is easy to install, has high adjustment accuracy and good stability, and can effectively solve the problem of difficulty in adjusting the light emission center point of the source in the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a device for adjusting the light emission center point of a light engine light source, including a lens support housing, a lens ring module, a lens spring, an adjustment cover plate, an adjustment plate, and a three-point fine-tuning lens ring module.

[0006] Furthermore, the lens support housing includes a vertically arranged front wall surface, a lower bottom surface extending horizontally from the front wall surface, and an outer peripheral surface surrounding one side of the light source body; the lens support housing is located on one side of the light source body.

[0007] Furthermore, the lens ring module is vertically arranged along the inner wall of the front wall, and the front wall has a first circular opening corresponding to the size of the lens ring module.

[0008] Furthermore, the cover plate is adapted to be installed on the top surface of the lens support housing.

[0009] Furthermore, the lens spring is vertically arranged on the back of the lens ring module.

[0010] Furthermore, the lens spring has a second circular opening corresponding to the size of the lens ring module.

[0011] Furthermore, the front wall of the lens support housing and the lens spring clamp the lens ring module, restricting its degree of freedom along the optical axis. Further, an adjustment plate is adaptively connected to the top of the lens ring module; the adjustment plate has a first mounting surface and a second mounting surface on its left and right sides respectively. A first adjusting screw is mounted on the first mounting surface, and a second adjusting screw is mounted on the second mounting surface. An adjusting spring connects the lens ring module to the bottom surface of the lens support housing, with one end of the adjusting spring connected to the center of the bottom of the lens ring module and the other end connected to the bottom surface of the lens support housing; the first adjusting screw, the second adjusting screw, and the adjusting spring form a three-point fine-tuning lens ring module.

[0012] Furthermore, a first locking screw is installed on the top surface of the adjustment plate, and a second locking screw is installed on the bottom surface of the lens support housing corresponding to the adjustment spring.

[0013] Furthermore, the lens ring module includes an output lens, a lens ring, and a lens mount. Both the lens ring and the lens mount are hollow rings. The output lens is snapped into the inner ring of the lens mount, and the lens ring is snapped into the front end face of the output lens along the inner ring of the lens mount. The lens ring and the lens mount lock the output lens together to form the lens ring module.

[0014] Furthermore, the adjusting plate is integrally formed at the leading edge of the adjusting cover; or, the adjusting plate is independently disposed on the lower side of the leading edge of the adjusting cover.

[0015] Furthermore, the size of the adjustment cover plate is adapted to the size of the top surface of the lens support housing, and the adjustment cover plate and the side of the top surface of the lens support housing are installed by bolt connection.

[0016] Furthermore, the radius of the lens ring module is 17.25 mm; its fine-tuning dimension is within a circle with a radius of 18.25 mm at the same center point.

[0017] Furthermore, the outer diameter of the lens ring is adapted to the inner diameter of the lens mount.

[0018] Furthermore, the size of the first circular opening is larger than the inner diameter of the lens ring but smaller than the outer diameter of the lens ring.

[0019] Furthermore, the size of the second circular opening is larger than the inner diameter of the lens mount but smaller than the outer diameter of the lens mount.

[0020] Furthermore, the width of the adjustment plate is not less than the width of the lens ring module.

[0021] Furthermore, this utility model also provides a projector, which includes the device for adjusting the light emission center point of the light engine light source.

[0022] This utility model has the following beneficial effects:

[0023] 1. The first adjusting screw, the second adjusting screw, and the adjusting spring form a three-point fine-tuning lens ring module. The first adjusting screw and the second adjusting screw, together with the adjusting spring, fine-tune the position (up, down, left, and right) of the lens ring module in the XY plane, thereby achieving fine-tuning of the position of the light source's light emission center point. The structure is simple, the adjustment accuracy is high, and the stability is good. It can effectively solve the problem of difficulty in adjusting the light source's light emission center point in the existing technology and has broad application prospects.

[0024] 2. After fine-tuning, the lens ring module is fixed by adjusting the first locking screw installed on the top surface of the plate and the second locking screw installed on the bottom surface of the lens support housing. This ensures the structural stability of the lens ring module and prevents it from shifting due to vibration or temperature changes during later use, thus providing good vibration and temperature resistance.

[0025] 3. The lens ring and lens mount lock the light outlet lens to form a lens ring module. The lens ring module is clamped and fixed by the front wall of the lens support housing and the lens spring, which restricts its freedom in the Z-axis. Through this axial locking and fixing, the position of the lens ring module can only be finely adjusted in the XY plane, resulting in better fine-tuning stability.

[0026] 4. The adjustment plate is integrally formed on the leading edge of the adjustment cover plate; or, the adjustment plate is independently set on the lower side of the leading edge of the adjustment cover plate. This structure of the adjustment plate provides a mounting surface for the first and second adjustment screws, making it easier to install the three-point fine-tuning lens ring module. Attached Figure Description

[0027] Figure 1 This is a perspective view of the mechanical structure of this utility model.

[0028] Figure 2 This is an exploded view of the mechanical structure of this utility model.

[0029] Figure 3 This is a schematic diagram of the mechanical structure of this utility model, incorporating a lens support housing.

[0030] Figure 4 This is the Z-axis assembly drawing of the mechanical structure of this utility model.

[0031] Figure 5 This is a schematic diagram of the mechanical structure of this utility model assembled in the XY plane.

[0032] Figure 6 This is a schematic diagram of the separate installation structure of the mechanical structure adjustment cover and adjustment plate of this utility model.

[0033] The components include: 1. Lens ring; 2. Lens mount; 3. Lens spring; 4. Adjustment cover plate; 5. Adjustment spring; 6. Second locking screw; 7. First adjusting screw; 8. First locking screw; 9. Second adjusting screw; 10. Lens support housing; 11. Light source body; 12. Adjustment plate. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and specific preferred embodiments.

[0035] In the description of this utility model, it should be understood that the terms "left side," "right side," "upper part," "lower part," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. "First," "second," etc., do not indicate the importance of the components, and therefore should not be construed as a limitation of this utility model. The specific dimensions used in this embodiment are only for illustrating the technical solution and do not limit the protection scope of this utility model.

[0036] like Figure 1-6 As shown, a device for adjusting the light emission center point of a light engine source includes a lens support housing, a lens ring module, a lens spring, an adjustment cover plate, an adjustment plate, and a three-point fine-tuning lens ring module.

[0037] Establish a spatial coordinate system, with a horizontal X-axis, a vertical Y-axis, and a Z-axis (i.e., the optical axis) perpendicular to the vertical plane in the vertical plane.

[0038] Within the established spatial coordinate system, the lens ring module is positioned along the vertical plane and is mounted on one side of the light source body 11 via the lens support housing 10.

[0039] Furthermore, the lens support housing includes a front wall surface arranged along the vertical plane, a lower bottom surface extending horizontally from the front wall surface, and an outer peripheral surface surrounding one side of the light source body; the lens support housing is located on one side of the light source body, and the cavity surrounding one side of the light source body is used to support and install the lens ring module.

[0040] Furthermore, the lens support housing is integrally formed on one side of the light source body, or the lens support housing is set independently, that is, it is separately set on one side of the light source body.

[0041] Furthermore, the lens ring module is installed inside the lens support housing cavity, and it is vertically arranged along the inner wall of the front wall, such as... Figure 4 As shown, the lens ring module is fitted to the inner wall of the front wall, and the front wall has a first circular opening corresponding to the size of the lens ring module.

[0042] Furthermore, the top surface of the lens support housing cavity is encapsulated by an adjustment cover plate 4, which is adaptively installed on the top surface of the lens support housing.

[0043] Furthermore, the lens spring is vertically arranged on the back of the lens ring module.

[0044] Furthermore, the lens spring has a second circular opening corresponding to the size of the lens ring module.

[0045] Furthermore, the front wall of the lens support housing and the lens spring clamp the lens ring module, restricting its degree of freedom along the optical axis.

[0046] Furthermore, for the sake of connection stability, the upper end of the lens spring 3 is connected to the adjustment cover plate, and the lower end is connected to the bottom surface of the lens support housing.

[0047] Furthermore, the lens spring has a second circular opening corresponding to the size of the lens ring module.

[0048] Furthermore, such as Figure 1 and Figure 4 As shown, the lens spring is fitted onto the back of the lens ring module. The front wall of the lens support housing and the lens spring clamp the lens ring module, restricting its degree of freedom along the optical axis. At this time, the lens ring module is completely fixed along the optical axis (Z-axis) and cannot be moved or adjusted forward or backward. It can only be moved in the vertical plane (up, down, left, and right) by three-point fine-tuning to adjust the position of the light source's light emission center point.

[0049] Furthermore, the adjustment plate is adaptively connected to the top of the lens ring module; the adjustment plate has a first mounting surface and a second mounting surface on its left and right sides, respectively. A first adjusting screw is installed on the first mounting surface, and a second adjusting screw is installed on the second mounting surface. An adjusting spring is connected between the lens ring module and the bottom surface of the lens support housing. One end of the adjusting spring is connected to the center of the bottom end of the lens ring module, and the other end is connected to the bottom surface of the lens support housing; the first adjusting screw, the second adjusting screw, and the adjusting spring form a three-point fine-tuning lens ring module.

[0050] In one embodiment, preferably, the adjusting plate and the adjusting cover are integrally formed, such as... Figure 1-2 As shown in Figure 5, the adjustment plate is integrally formed on the front edge of the adjustment cover plate. The adjustment plate provides a mounting surface for the first and second adjustment screws, making it easier to install the three-point fine-tuning lens ring module.

[0051] In one embodiment, preferably, the adjustment plate is an independent structure, separate from the adjustment cover plate; such as Figure 6As shown, the adjustment plate is independently located below the leading edge of the adjustment cover plate. That is, the space between the leading edge of the adjustment cover plate and the top of the lens ring module forms the installation space for the adjustment plate. The adjustment plate provides mounting surfaces for the first and second adjustment screws, facilitating the installation of the three-point fine-tuning lens ring module. In this case, the first and second adjustment screws also need to pass through the adjustment cover plate.

[0052] Furthermore, the width of the adjustment plate is not less than the width of the lens ring module. The three-point fine-tuning lens ring module works in conjunction with the adjustment plate to adjust the position of the light source's light emission center point.

[0053] In one embodiment, optionally, the adjustment plate is adaptively bent from the top surface along the lens ring module to both sides, forming a first trapezoidal surface and a second trapezoidal surface, combined with Figure 1 and Figure 5 The leading edge of the adjustment cover plate overlaps with the top of the lens ring module. This leading edge is trapezoidal in shape, having a top surface and a first trapezoidal surface and a second trapezoidal surface located on both sides of the top surface. This structure makes the overlap between the leading edge and the top of the lens ring module more adaptable, and also facilitates the installation of the three-point fine-tuning lens ring module.

[0054] Furthermore, the leading edge of the cover plate is adjusted to bend adaptively to both sides from the top surface along the lens ring module, with a bending angle of 120° on both sides.

[0055] Furthermore, a first adjusting screw 7 is installed on the first trapezoidal surface, and a second adjusting screw 9 is installed on the second trapezoidal surface. An adjusting spring 5 is connected between the lens ring module and the bottom surface of the lens support housing. One end of the adjusting spring is connected to the center of the bottom end of the lens ring module, and the other end is connected to the bottom surface of the lens support housing. The first adjusting screw, the second adjusting screw, and the adjusting spring form a three-point fine-tuning lens ring module.

[0056] Specifically, the first and second adjusting screws, together with the adjusting spring, finely adjust the position (up, down, left, and right) of the lens ring module in the XY plane, thereby achieving fine adjustment of the position of the light source's light emission center point.

[0057] Furthermore, it also includes a locking module, which includes a first locking screw 8 and a second locking screw 6.

[0058] The top surface of the adjusting cover plate is equipped with a first locking screw, and the bottom surface of the lens support housing is equipped with a second locking screw corresponding to the adjusting spring. After the three-point fine-tuning lens ring module finely adjusts the position of the light source's light emission center point, the lens ring module is fixed by the first locking screw on the top surface and the second locking screw on the bottom surface of the lens support housing. This ensures the structural stability of the lens ring module and prevents it from shifting due to vibration or temperature changes during later use.

[0059] Furthermore, the lens ring module includes an output lens, a lens ring 1, and a lens mount 2. Both the lens ring and the lens mount are hollow rings. The output lens is snapped into the inner ring of the lens mount, and the lens ring is snapped into the front end face of the output lens along the inner ring of the lens mount. The lens ring and the lens mount lock the output lens to form the lens ring module.

[0060] Furthermore, such as Figure 2 and Figure 4 As shown, the bottom end of the lens spring is bent in an L-shape away from the lens ring module to form a fixing part, which is fixedly connected to the bottom surface of the lens support housing by bolts.

[0061] Furthermore, the size of the adjustment cover plate is adapted to the size of the top surface of the lens support housing, and the adjustment cover plate and the side of the top surface of the lens support housing are installed by bolt connection.

[0062] Furthermore, the radius of the lens ring module is 17.25 mm; combined with Figure 5 The lens ring module can be finely adjusted in the XY plane, with the adjustment size being within a circle with a radius of 18.25mm at the same center point.

[0063] Furthermore, the outer diameter of the lens ring is adapted to the inner diameter of the lens mount.

[0064] Furthermore, based on actual installation requirements, the size of the first circular opening is larger than the inner diameter of the lens ring but smaller than the outer diameter of the lens ring.

[0065] Furthermore, based on actual installation requirements, the size of the second circular opening is larger than the inner diameter of the lens mount but smaller than the outer diameter of the lens mount.

[0066] The present invention will be described in further detail below:

[0067] This utility model also provides a method for using a device for adjusting the light emission center point of a light engine source. Specifically, in the established spatial coordinate system:

[0068] S1: Install the lens support housing on one side of the light source body, with the front wall of the lens support housing set along the XY plane; then attach the lens ring module to the inner wall of the front wall of the lens support housing.

[0069] S2: The lens spring is fitted onto the back of the lens ring module, with its lower end connected to the bottom surface of the lens support housing. The front wall of the lens support housing and the lens spring clamp the lens ring module, restricting its degree of freedom along the optical axis. At this point, the lens ring module is completely fixed along the optical axis and cannot be moved back or forth or adjusted.

[0070] S3: Install adjustment cover and adjustment plate.

[0071] S4: A three-point fine-tuning lens ring module is installed at the adjustment plate for fine-tuning the position of the light source's light emission center point.

[0072] Furthermore, the adjustment plate is adaptively connected to the top of the lens ring module; the adjustment plate has a first mounting surface and a second mounting surface on its left and right sides, respectively. A first adjusting screw is mounted on the first mounting surface, and a second adjusting screw is mounted on the second mounting surface. An adjusting spring is connected between the lens ring module and the bottom surface of the lens support housing. One end of the adjusting spring is connected to the center of the bottom of the lens ring module, and the other end is connected to the bottom surface of the lens support housing. The first adjusting screw, the second adjusting screw, and the adjusting spring form a three-point fine-tuning lens ring module. The first and second adjusting screws, in conjunction with the adjusting spring, fine-tune the position (up, down, left, and right) of the lens ring module in the XY plane, thereby achieving fine-tuning of the light emission center point of the light source.

[0073] S5: After fine-tuning, install the locking module to lock the lens ring module in the XY plane.

[0074] Specifically, a first locking screw is installed on the top surface of the adjustment plate, and a second locking screw is installed on the bottom surface of the lens support housing corresponding to the adjustment spring. After the three-point fine-tuning lens ring module finely adjusts the position of the light source's light emission center point, the lens ring module is fixed by the first locking screw on the top surface and the second locking screw on the bottom surface of the lens support housing. This ensures the structural stability of the lens ring module and prevents it from shifting due to vibration or temperature changes during later use.

[0075] Furthermore, this utility model also provides a projector, which includes the device for adjusting the light emission center point of the light engine light source.

[0076] It is understood that the device for adjusting the light emission center point of a light engine source provided by this utility model should not be limited to the field of projectors. The field of light sources such as searchlights and lighting beam lights can also include this device for adjusting the light emission center point of a light engine source.

[0077] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0078] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A device for adjusting the center point of light emission from a light engine source, characterized in that: Includes a lens support housing, a lens ring module, a lens spring, an adjustment cover, an adjustment plate, and a three-point fine-tuning lens ring module; The lens support housing includes a vertically arranged front wall, a lower bottom surface extending horizontally from the front wall, and an outer peripheral surface surrounding one side of the light source body; the lens support housing is located on one side of the light source body. The lens ring module is vertically arranged along the inner wall of the front wall, and the front wall has a first circular opening corresponding to the size of the lens ring module; The adjustment cover plate is adapted to be installed on the top surface of the lens support housing; The lens springs are vertically arranged on the back of the lens ring module; The lens spring has a second circular opening corresponding to the size of the lens ring module; The front wall of the lens support housing and the lens spring clamp the lens ring module, restricting its degree of freedom along the optical axis; The adjustment plate is adaptively connected to the top of the lens ring module; the adjustment plate has a first mounting surface and a second mounting surface on its left and right sides, respectively. A first adjusting screw is installed on the first mounting surface, and a second adjusting screw is installed on the second mounting surface. An adjusting spring is connected between the lens ring module and the bottom surface of the lens support housing. One end of the adjusting spring is connected to the center of the bottom end of the lens ring module, and the other end is connected to the bottom surface of the lens support housing; the first adjusting screw, the second adjusting screw, and the adjusting spring form a three-point fine-tuning lens ring module.

2. The device for adjusting the light emission center point of a light engine source according to claim 1, characterized in that: The top surface of the adjustment plate is equipped with a first locking screw, and the bottom surface of the lens support housing is equipped with a second locking screw corresponding to the adjustment spring.

3. The device for adjusting the light emission center point of a light engine source according to claim 1, characterized in that: The lens ring module includes an output lens, a lens ring, and a lens mount. Both the lens ring and the lens mount are hollow rings. The output lens is snapped into the inner ring of the lens mount, and the lens ring is snapped into the front end face of the output lens along the inner ring of the lens mount. The lens ring and the lens mount lock the output lens together to form the lens ring module.

4. The device for adjusting the light emission center point of the light engine source according to claim 2, characterized in that: The adjusting plate is integrally formed at the leading edge of the adjusting cover; or, the adjusting plate is independently disposed on the lower side of the leading edge of the adjusting cover.

5. The device for adjusting the light emission center point of a light engine source according to claim 1, characterized in that: The size of the adjustment cover plate is adapted to the size of the top surface of the lens support housing, and the adjustment cover plate is bolted to the side of the top surface of the lens support housing.

6. The device for adjusting the light emission center point of a light engine source according to claim 1, characterized in that: The lens ring module has a radius of 17.25mm; its fine-tuning dimension is within a circle with a radius of 18.25mm at the same center point.

7. The device for adjusting the light emission center point of a light engine source according to claim 1, characterized in that: The outer diameter of the lens ring is adapted to the inner diameter of the lens mount.

8. The apparatus for adjusting the light emission center point of a light engine source according to claim 1, characterized in that: The size of the first circular opening is larger than the inner diameter of the lens ring but smaller than the outer diameter of the lens ring; the size of the second circular opening is larger than the inner diameter of the lens mount but smaller than the outer diameter of the lens mount.

9. The apparatus for adjusting the light emission center point of a light engine source according to claim 1, characterized in that: The width of the adjustment plate shall not be less than the width of the lens ring module.

10. A projector comprising means for adjusting the light emission center point of a light engine source as described in any one of claims 1-9.

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