An apparatus for changing an exit spot area

Abstract

The utility model provides a device for changing outgoing light spot area belongs to front end light guide passageway structural member technical field. It includes the light guide piece with light guide passageway, the light guide piece front end is provided with a cover body, the cover body is equipped with with light guide passageway corresponding setting light outlet, the light guide passageway's light outlet and light outlet between still be equipped with light spot adjusting mechanism. Through setting cover body in light guide piece front end, and between light guide passageway light outlet and light outlet additionally adding the light spot adjusting mechanism including combination type light spot forming piece, this design has realized outgoing light spot area's adjustable, solved the problem of traditional structure light spot area fixedly, specifically, the circular light spot forming channel in combination type light spot forming piece can be formed independently by fixed light spot forming piece, also can be composed by fixed light spot forming piece and each light spot forming piece setting in proper order, to form the light spot of different area size like this.

Description

Technical Field

[0001] This utility model belongs to the technical field of front-end light guide path structure components, and relates to a device for changing the area of ​​the emitted light spot. Background Technology

[0002] In existing technologies, the light outlet area of ​​the front-end light guide path structure is designed to be fixed, resulting in a constant output light spot area that cannot be flexibly adjusted according to the needs of actual application scenarios. This fixed structural design has obvious limitations in practical use: when facing different lighting ranges, detection areas, or projection requirements, the fixed light spot area is difficult to adapt to diverse scenario requirements. It is often necessary to replace the light guide structure with different specifications to meet the usage requirements, which not only increases the operation and time costs of equipment replacement, but also limits the versatility and adaptability of the light guide device in complex scenarios, and cannot achieve dynamic adjustment of the light spot area to match the real-time changing application requirements. Utility Model Content

[0003] The purpose of this invention is to address the above-mentioned problems by providing a device for changing the area of ​​the emitted light spot.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A device for changing the area of ​​emitted light spot includes a light guide with a light guiding path. A cover is provided at the front end of the light guide, and a light outlet corresponding to the light guiding path is provided on the cover. A light spot adjustment mechanism is also provided between the light outlet of the light guiding path and the light outlet. The light spot adjustment mechanism includes a combined light spot forming component. The combined light spot forming component has a light spot forming channel with a circular cross-section and an inner diameter that gradually decreases from top to bottom. The combined light spot forming component includes a fixed light spot forming component, a first movable light spot forming component, a second movable light spot forming component, and a third movable light spot forming component arranged sequentially from top to bottom. Each of the fixed light spot forming component, the first movable light spot forming component, the second movable light spot forming component, and the third movable light spot forming component has a light guiding channel that can form a light spot forming channel, and the light guiding channels in the fixed light spot forming component, the first movable light spot forming component, the second movable light spot forming component, and the third movable light spot forming component gradually decrease in size.

[0006] In the aforementioned device for changing the area of ​​the emitted light spot, the inner diameter of the light guide channel gradually decreases from top to bottom. Among the fixed light spot forming component, the first movable light spot forming component, the second movable light spot forming component, and the third movable light spot forming component, the inner diameter of the light spot output end of each light guide channel decreases sequentially.

[0007] In the aforementioned device for changing the area of ​​the emitted light spot, light rays can output a first light spot after passing through a light spot forming channel formed independently by the light guide channels in the fixed light spot forming component; light rays can output a second light spot after passing through a light spot forming channel formed by the combination of the light guide channels in the fixed light spot forming component and the first movable light spot forming component; light rays can output a third light spot after passing through a light spot forming channel formed by the combination of the light guide channels in the fixed light spot forming component, the first movable light spot forming component, and the second movable light spot forming component; and light rays can output a fourth light spot after passing through a light spot forming channel formed by the combination of the light guide channels in the fixed light spot forming component, the first movable light spot forming component, the second movable light spot forming component, and the third movable light spot forming component.

[0008] The areas of the first, second, third, and fourth light spots gradually decrease.

[0009] In the aforementioned device for changing the area of ​​the emitted light spot, the fixed light spot forming component is annular and integrally formed, and is fixedly disposed inside the cover, with the top end of the fixed light spot forming component abutting against the bottom end of the light guide component.

[0010] In the aforementioned device for changing the area of ​​the emitted light spot, the first movable light spot forming component, the second movable light spot forming component, and the third movable light spot forming component are all annular and each is composed of four arc-shaped components. The four arc-shaped components can converge and expand radially along the light guide channel. The cover is also provided with a driving component that can drive the arc-shaped components to move radially along the light guide channel.

[0011] In the aforementioned device for changing the area of ​​the emitted light spot, a linkage limiting structure is provided between the fixed light spot forming component and the first movable light spot forming component, between the first movable light spot forming component and the second movable light spot forming component, and between the second movable light spot forming component and the third movable light spot forming component.

[0012] In the aforementioned device for changing the area of ​​the emitted light spot, the linkage limiting structure includes a limiting groove with a T-shaped cross-section and a limiting slider with a T-shaped cross-section.

[0013] In the aforementioned device for changing the area of ​​the emitted light spot, when the driving member drives the arc-shaped part in the first movable light spot forming member to move radially outward, the corresponding arc-shaped parts in the second and third movable light spot forming members can be driven to move radially outward synchronously through the linkage limiting structure; when the driving member drives the arc-shaped part in the second movable light spot forming member to move radially outward, the corresponding arc-shaped part in the third movable light spot forming member can be driven to move radially outward synchronously through the linkage limiting structure.

[0014] In the aforementioned device for changing the area of ​​the emitted light spot, the driving component includes a driving rod that horizontally penetrates the cover and has a handle fixedly connected to its outer end.

[0015] In the aforementioned device for changing the area of ​​the emitted light spot, the outer circumferential surface of the light guide is provided with an upper threaded portion and a lower threaded portion, which are separated by an annular plate. The cover is screwed to the light guide through the lower threaded portion.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. By setting a cover at the front end of the light guide and adding a light spot adjustment mechanism containing a combined light spot forming component between the light output end of the light guide path and the light output port, this design realizes the adjustment of the emitted light spot area and solves the problem of the fixed light spot area in the traditional structure. Specifically, the circular light spot forming channel in the combined light spot forming component can be formed independently by the fixed light spot forming component, or it can be composed of the fixed light spot forming component and the light spot forming components arranged in sequence, thereby forming light spots of different sizes.

[0018] 2. The inner diameter of the light guide channel gradually decreases from top to bottom, and in each light spot forming component, the inner diameter of the light spot output end of the light guide channel decreases sequentially. This design allows light to form light spots of different areas when light passes through different combinations of light guide channels, further refining the levels of light spot adjustment, ensuring the orderliness and stability of light spot area changes, and improving the accuracy of light spot adjustment.

[0019] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of the present invention when the fourth light spot is output;

[0021] Figure 2 This is a cross-sectional view of the present invention when the third light spot is output;

[0022] Figure 3 This is a top view of the light spot adjustment mechanism. Detailed Implementation

[0023] like Figures 1-3As shown, a device for changing the area of ​​emitted light spot includes a light guide 2 having a light guiding path 1. A cover 3 is disposed at the front end of the light guide 2. The cover 3 has a light outlet 4 corresponding to the light guiding path 1. A light spot adjustment mechanism 5 is also provided between the light outlet of the light guiding path 1 and the light outlet 4. The light spot adjustment mechanism 5 includes a combined light spot forming component. The combined light spot forming component has a light spot forming channel 6 with a circular cross-section and an inner diameter that gradually decreases from top to bottom. The component includes a fixed spot forming component 7, a first movable spot forming component 8, a second movable spot forming component 9, and a third movable spot forming component 10 arranged sequentially from top to bottom. Each of the fixed spot forming component 7, the first movable spot forming component 8, the second movable spot forming component 9, and the third movable spot forming component 10 has a light guiding channel that can form a spot forming channel 6, and the light guiding channels in the fixed spot forming component 7, the first movable spot forming component 8, the second movable spot forming component 9, and the third movable spot forming component 10 gradually decrease in size.

[0024] In this invention, by setting a cover at the front end of the light guide and adding a light spot adjustment mechanism containing a combined light spot forming component between the light-emitting end of the light guide path and the light-emitting port, the emitted light spot area can be adjusted, solving the problem of the fixed light spot area in the traditional structure. Specifically, the circular light spot forming channel in the combined light spot forming component can be formed independently by the fixed light spot forming component, or it can be composed of the fixed light spot forming component and the light spot forming components arranged in sequence, thereby forming light spots of different sizes.

[0025] Specifically, the inner diameter of the light guide channel gradually decreases from top to bottom. In the fixed spot forming component 7, the first movable spot forming component 8, the second movable spot forming component 9, and the third movable spot forming component 10, the inner diameter of the spot output end of each light guide channel decreases sequentially. This design allows light to form spots of different areas when passing through different combinations of light guide channels, further refining the levels of spot adjustment, ensuring the orderliness and stability of spot area changes, and improving the accuracy of spot adjustment.

[0026] Specifically, light rays can output a first light spot after passing through the light spot forming channel 6, which is independently composed of light guide channels within the fixed light spot forming component 7; a second light spot can be output after passing through the light spot forming channel 6, which is formed by the combination of light guide channels within the fixed light spot forming component 7 and the first movable light spot forming component 8; a third light spot can be output after passing through the light spot forming channel 6, which is formed by the combination of light guide channels within the fixed light spot forming component 7, the first movable light spot forming component 8, and the second movable light spot forming component 9; and a fourth light spot can be output after passing through the light spot forming channel 6, which is formed by the combination of light guide channels within the fixed light spot forming component 7, the first movable light spot forming component 8, the second movable light spot forming component 9, and the third movable light spot forming component 10. The areas of the first, second, third, and fourth light spots gradually decrease. This design clarifies the correspondence between different combination methods and light spot areas, realizes multi-level adjustment of light spot area, meets the usage requirements of different light spot areas in different scenarios, and enhances the applicability of the device.

[0027] Specifically, the fixed light spot forming component 7 is annular and integrally formed. It is fixedly disposed within the housing 3, with its top end abutting against the bottom end of the light guide component 2. This annular, integrally formed design, fixed within the housing and abutting against the bottom end of the light guide component, ensures the stability of the fixed light spot forming component, provides a solid foundation for the movable light spot forming component, guarantees the initial stability of the light spot forming channel, and facilitates stable light transmission and stable light spot formation.

[0028] Specifically, the first movable light spot forming component 8, the second movable light spot forming component 9, and the third movable light spot forming component 10 are all annular and each consists of four arc-shaped components 11. The four arc-shaped components 11 can retract and expand radially along the light guide channel. The cover 3 is also provided with a driving component 12 that can drive the arc-shaped components 11 to move radially along the light guide channel. The first, second, and third movable light spot forming components are all composed of four arc-shaped components, which can retract and expand radially along the light guide channel and are driven to move by the driving component. This design allows the movable light spot forming components to flexibly change the inner diameter of the light guide channel, thereby realizing dynamic adjustment of the light spot area. This solves the problem that traditional fixed structures cannot be adjusted. At the same time, the arc-shaped structure facilitates flexible operation according to the needs.

[0029] Specifically, linkage limiting structures 13 are provided between the fixed spot forming component 7 and the first movable spot forming component 8, between the first movable spot forming component 8 and the second movable spot forming component 9, and between the second movable spot forming component 9 and the third movable spot forming component 10. These linkage limiting structures between the spot forming components restrict and guide the relative movement of each component, ensuring that the movable spot forming components do not shift or misalign during movement. This guarantees the continuity and stability of the spot forming channel and improves the reliability of spot adjustment.

[0030] Specifically, the linkage limiting structure 13 includes a T-shaped limiting groove 14 and a T-shaped limiting slider 15. The linkage limiting structure uses a T-shaped limiting groove and a T-shaped limiting slider in combination. This structural form makes the limiting effect more stable, effectively restricting the radial movement trajectory of each light spot forming component, preventing jamming or offset, ensuring the smoothness and precision of the movement of the moving light spot forming component, and further guaranteeing the stability of the light spot adjustment.

[0031] Specifically, when the driving component 12 drives the arc-shaped component 11 within the first movable spot forming component 8 to move radially outward, the linkage limiting structure 13 can simultaneously drive the corresponding arc-shaped components 11 within the second and third movable spot forming components 9 and 10 to move radially outward; when the driving component 12 drives the arc-shaped component 11 within the second movable spot forming component 9 to move radially outward, the linkage limiting structure 13 can simultaneously drive the corresponding arc-shaped component 11 within the third movable spot forming component 10 to move radially outward. Through the linkage limiting structure, the driving component can drive the second and third movable spot forming components to move synchronously when driving the first movable spot forming component to move, and can drive the third movable spot forming component to move synchronously when driving the second movable spot forming component to move. This linkage design simplifies the operation process, realizes the coordinated adjustment of multiple movable spot forming components, ensures the overall consistency of the spot forming channel, and improves adjustment efficiency.

[0032] Specifically, the driving component 12 includes a driving rod 16, which horizontally penetrates the cover 3 and has a handle fixedly connected to its outer end. The driving component uses a driving rod that horizontally penetrates the cover, and the outer end is equipped with a handle. This design allows the operator to easily operate the driving rod via the handle, thereby driving the curved component to move. This simplifies the operation of adjusting the light spot, improves operational convenience, and facilitates quick adjustment by the user according to their needs.

[0033] The driving component can also be a linear actuator, including but not limited to linear motors and miniature cylinders.

[0034] Specifically, the outer circumferential surface of the light guide 2 is provided with an upper threaded portion 17 and a lower threaded portion 18, which are separated by an annular plate. The cover 3 is screwed to the light guide 2 through the lower threaded portion 18. The upper and lower threaded portions on the outer circumference of the light guide and the cover being screwed to the light guide through the lower threaded portion make the installation and disassembly of the cover and the light guide more convenient, facilitating the maintenance and repair of the internal light spot adjustment mechanism. At the same time, the stability of the threaded connection also ensures the stability of the overall structure of the device, ensuring the reliable operation of the light spot adjustment.

[0035] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A device for changing the area of ​​emitted light spot, comprising a light guide (2) having a light guiding path (1), characterized in that, The light guide (2) has a cover (3) at its front end. The cover (3) has a light outlet (4) corresponding to the light guide path (1). A spot adjustment mechanism (5) is also provided between the light outlet end of the light guide path (1) and the light outlet (4). The spot adjustment mechanism (5) includes a combined spot forming component. The combined spot forming component has a spot forming channel (6) with a circular cross-section and an inner diameter that gradually decreases from top to bottom. The combined spot forming component includes fixed spot forming components arranged sequentially from top to bottom. (7) The first movable light spot forming component (8), the second movable light spot forming component (9) and the third movable light spot forming component (10) are all equipped with light guiding channels that can form a light spot forming channel (6), and the light guiding channels in the fixed light spot forming component (7), the first movable light spot forming component (8), the second movable light spot forming component (9) and the third movable light spot forming component (10) gradually decrease in size.

2. The device for changing the area of ​​the emitted light spot according to claim 1, characterized in that, The inner diameter of the light guide channel gradually decreases from top to bottom. Among the fixed light spot forming component (7), the first movable light spot forming component (8), the second movable light spot forming component (9), and the third movable light spot forming component (10), the inner diameter of the light spot output end of each light guide channel decreases sequentially.

3. The device for changing the area of ​​the emitted light spot according to claim 2, characterized in that, After passing through the light-guiding channels (6) independently formed by the light-guiding channels in the fixed light-guiding component (7), the light can output a first light spot; after passing through the light-guiding channels (6) formed by the combination of the light-guiding channels in the fixed light-guiding component (7) and the first movable light-guiding component (8), the light can output a second light spot; after passing through the light-guiding channels (6) formed by the combination of the light-guiding channels in the fixed light-guiding component (7), the first movable light-guiding component (8), and the second movable light-guiding component (9), the light can output a third light spot; after passing through the light-guiding channels (6) formed by the combination of the light-guiding channels in the fixed light-guiding component (7), the first movable light-guiding component (8), the second movable light-guiding component (9), and the third movable light-guiding component (10), the light can output a fourth light spot. The areas of the first, second, third, and fourth light spots gradually decrease.

4. The device for changing the area of ​​the emitted light spot according to claim 1, characterized in that, The fixed light spot forming component (7) is ring-shaped and integrally formed. The fixed light spot forming component (7) is fixedly set inside the cover (3) and the top end of the fixed light spot forming component (7) abuts against the bottom end of the light guide component (2).

5. The device for changing the area of ​​the emitted light spot according to claim 4, characterized in that, The first movable light spot forming component (8), the second movable light spot forming component (9) and the third movable light spot forming component (10) are all annular and each is composed of four arc-shaped components (11). The four arc-shaped components (11) can be radially contracted and expanded along the light guide channel. The cover (3) is also provided with a driving component (12) that can drive the arc-shaped components (11) to move radially along the light guide channel.

6. The device for changing the area of ​​the emitted light spot according to claim 5, characterized in that, Linkage limiting structures (13) are provided between the fixed spot forming component (7) and the first movable spot forming component (8), between the first movable spot forming component (8) and the second movable spot forming component (9), and between the second movable spot forming component (9) and the third movable spot forming component (10).

7. The device for changing the area of ​​the emitted light spot according to claim 6, characterized in that, The linkage limiting structure (13) includes a limiting groove (14) with a T-shaped cross section and a limiting slider (15) with a T-shaped cross section.

8. The device for changing the area of ​​the emitted light spot according to claim 6, characterized in that, When the driving component (12) drives the arc-shaped component (11) in the first active spot forming component (8) to move radially outward, the linkage limiting structure (13) can drive the corresponding arc-shaped component (11) in the second active spot forming component (9) and the third active spot forming component (10) to move radially outward synchronously. When the driving component (12) drives the arc-shaped component (11) in the second active spot forming component (9) to move radially outward, the linkage limiting structure (13) can drive the corresponding arc-shaped component (11) in the third active spot forming component (10) to move radially outward synchronously.

9. The device for changing the area of ​​the emitted light spot according to claim 5, characterized in that, The driving component (12) includes a driving rod (16), which horizontally penetrates the cover (3) and has a handle fixedly connected to its outer end.

10. The device for changing the area of ​​the emitted light spot according to claim 1, characterized in that, The outer peripheral surface of the light guide (2) is provided with an upper threaded part (17) and a lower threaded part (18), and the upper threaded part (17) and the lower threaded part (18) are separated by an annular plate. The cover (3) is screwed to the light guide (2) through the lower threaded part (18).

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