CN220526233U - Luminous knob and annular backlight module thereof - Google Patents
Luminous knob and annular backlight module thereof Download PDFInfo
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- CN220526233U CN220526233U CN202321856369.3U CN202321856369U CN220526233U CN 220526233 U CN220526233 U CN 220526233U CN 202321856369 U CN202321856369 U CN 202321856369U CN 220526233 U CN220526233 U CN 220526233U
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- 238000000926 separation method Methods 0.000 claims abstract description 16
- 238000005192 partition Methods 0.000 claims description 12
- 238000005286 illumination Methods 0.000 abstract description 21
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
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- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
The utility model provides a luminous knob capable of avoiding light mixing and an annular backlight module thereof. The toothed annular light guide element is positioned on the plurality of light emitting elements. The toothed annular light guide element comprises an annular body and a plurality of extending parts. The plurality of extending parts are arranged on the same side of the annular body and respectively correspond to the plurality of light-emitting elements. A separation region is formed between two adjacent extension portions of the plurality of extension portions. According to the utility model, the intensity of illumination light emitted by the light-emitting elements is rapidly reduced through the air interval design of the separation area, so that the light mixing phenomenon of adjacent light-emitting elements is effectively prevented.
Description
Technical Field
The present utility model relates to a light-emitting knob and an annular backlight module thereof, and more particularly to a light-emitting knob and an annular backlight module thereof capable of avoiding light mixing.
Background
The conventional luminous knob comprises an operation member and a backlight module. The backlight module surrounds the operation member and is provided with a plurality of light emitting elements and a light guide ring which are annularly arranged. The operating member is disposed in a central region of the light guide ring, and the plurality of light emitting elements each correspond to a different section of the light guide ring. Although the plurality of light emitting elements are arranged at intervals, when only the illumination function of a part of the light emitting elements is started, illumination light emitted by the light emitting elements with the started illumination function is transmitted to a section of the light guide ring corresponding to the light emitting elements without the started illumination function through the light guide ring, that is, the light guide ring of the conventional light emitting knob is easily disturbed by the cross region adjacent to the light emitting elements.
Disclosure of Invention
The utility model provides a luminous knob capable of avoiding light mixing and an annular backlight module thereof, so as to solve the problems.
In order to achieve the above objective, the present utility model provides an annular backlight module, which includes a plurality of light emitting elements and a toothed annular light guiding element, wherein the toothed annular light guiding element is disposed on the plurality of light emitting elements, the toothed annular light guiding element includes an annular body and a plurality of extending portions disposed on a same side of the annular body, the plurality of extending portions respectively correspond to the plurality of light emitting elements, and a separation area is formed between two adjacent extending portions of the plurality of extending portions.
As an alternative technical scheme, the annular body is of a circular ring structure or a polygonal ring structure.
As an optional solution, each of the plurality of extending portions has a first end edge and a second end edge opposite to each other, the first end edge is connected to the annular body, the second end edge faces the corresponding light emitting element of the plurality of light emitting elements, and a first length of the first end edge is different from a second length of the second end edge.
As an optional solution, each of the plurality of extending portions has a first end edge and a second end edge opposite to each other, the first end edge is connected to the annular body, the second end edge faces the corresponding light emitting element of the plurality of light emitting elements, and a first length of the first end edge is identical to a second length of the second end edge.
As an alternative solution, the partition area has a first area edge and a second area edge opposite to each other, the first area edge is aligned with the outer edge of the annular body, the second area edge is aligned with the inner edge of the annular body, and the third length of the first area edge is identical to the fourth length of the second area edge.
As an alternative solution, the partition area has a first area edge and a second area edge opposite to each other, the first area edge is aligned with the outer edge of the annular body, the second area edge is aligned with the inner edge of the annular body, and the third length of the first area edge is different from the fourth length of the second area edge.
As an optional solution, each of the plurality of extending portions has a first side surface and a second side surface opposite to each other, the first side surface and the second side surface face the adjacent extending portion respectively, and the first side surface and the second side surface are respectively a plane.
As an optional solution, each of the plurality of extending portions has a first side surface and a second side surface opposite to each other, the first side surface and the second side surface face the adjacent extending portion respectively, and the first side surface and the second side surface are cambered surfaces respectively.
As an optional solution, each of the plurality of extending portions has a bottom surface, the bottom surface faces a corresponding light emitting element of the plurality of light emitting elements, and the corresponding light emitting element corresponds to a center of the bottom surface.
In addition, the utility model also provides a luminous knob which comprises the annular backlight module and an operation knob, wherein the luminous sequence of the luminous elements corresponds to the rotation angle of the operation knob relative to the annular body.
The utility model provides a luminous knob capable of avoiding light mixing and an annular backlight module thereof, wherein the luminous knob can be designed in such a way that the luminous sequence of a plurality of luminous elements corresponds to the rotation angle of an operation knob relative to an annular body, and tooth-shaped annular light guide elements of the annular backlight module are provided with adjacent extending parts and separation areas in the annular body; the extending parts can be solid structures made of light guide materials, and the separating areas are air spacing areas between the extending parts. Therefore, when the light-emitting elements output illumination light to the corresponding extending parts, the intensity of the illumination light can be rapidly decreased due to the design of the air interval of the separation area, and the light mixing phenomenon of the adjacent light-emitting elements can be effectively prevented.
The following describes the embodiments of the present utility model in further detail with reference to the drawings.
Drawings
FIG. 1 is a schematic view of an embodiment of a luminous knob;
FIG. 2 is a cross-sectional view of a luminous knob according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a toothed annular light guiding element according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a toothed annular light guiding element according to another modification of the present utility model;
FIG. 5 is a top view of a toothed annular light guide element according to an embodiment of the present utility model;
FIG. 6 is a schematic view of a portion of a tooth-shaped annular light guiding element according to another embodiment of the present utility model;
FIG. 7 is a schematic view of a portion of a tooth-shaped annular light guiding element according to another embodiment of the present utility model;
fig. 8 is a schematic view of a portion of a tooth-shaped annular light guiding element according to another embodiment of the present utility model.
Detailed Description
In order to more clearly illustrate the present utility model, the present utility model will be further described with reference to preferred embodiments and the accompanying drawings. Like parts in the drawings are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and that this utility model is not limited to the details given herein.
Referring to fig. 1 and 2, fig. 1 is an external view of a luminous knob 10 according to an embodiment of the utility model, and fig. 2 is a structural cross-sectional view of the luminous knob 10 according to an embodiment of the utility model. The light-emitting knob 10 may include an operation knob 12 and an annular backlight module 14. The operation knob 12 is rotatable in the rotation direction D. The annular backlight module 14 may be disposed in a housing 16 of an electronic device (not shown in the drawings), and the annular backlight module 14 further includes a circuit board 18, a light emitting element 20, and a toothed annular light guiding element 22. The plurality of light emitting elements 20 are distributed at different locations of the circuit board 18. The tooth-shaped annular light guide element 22 is engaged with the housing 16 and is located above the plurality of light emitting elements 20. The operating knob 12 may be disposed on the circuit board 18 and within the toothed annular light guide member 22.
Referring to fig. 3 to 5, fig. 3 is a schematic diagram of a toothed annular light guiding element 22 according to an embodiment of the present utility model, fig. 4 is a schematic diagram of the toothed annular light guiding element 22 according to another modification, and fig. 5 is a top view of the toothed annular light guiding element 22 according to an embodiment of the present utility model. The toothed annular light guide element 22 may include an annular body 24 and an extension 26. The shape of the annular body 24 may be determined by design requirements, for example, the annular structure shown in fig. 3 or the polygonal ring structure shown in fig. 4, and the practical application is not limited thereto. The extension 26 may be plural, and the actual number thereof may correspond to the number of the light emitting elements 20. The plurality of extensions 26 are disposed on the same side of the annular body 24, such as the lower side of the annular body 24, and correspond to the plurality of light emitting elements 20, respectively. A separation region 28 may be formed between each two adjacent extensions 26, and the separation region 28 faces the gap between the corresponding two adjacent light emitting elements 20. The bottom surface 40 of the extension portion 26 is a light incident surface of the light guiding element 22, and the top surface 41 of the annular body 24 is a light emergent surface of the light guiding element 22.
Therefore, the light emitting element 20 can obtain an electronic signal such as a control command or power through the circuit board 18 to output illumination light. The illumination light is projected upwardly into the extension 26 of the toothed annular light guide element 22 and then through the annular body 24 so that the user of the electronic device can visually see the lighting effect of the lighting knob 10. In the embodiment of the utility model, the plurality of light emitting elements 20 can be gradually lightened along with the rotation of the operation button 12, for example, when the datum point 30 of the operation button 12 rotates from zero degree to ninety degrees, the plurality of light emitting elements 20 (about one fourth of the total number of the plurality of light emitting elements 20) corresponding to the datum point 30 in the moving range outputs illumination light, and the illumination light can pass through the extension portion 26 and the annular body 24 to enable the tooth-shaped annular light guiding element 22 to have illumination effect in the corresponding quarter section; as shown in fig. 2 and 5, the rotation direction D is the moving direction of the reference point 30, the arrow length of the rotation direction D is the moving range of the reference point 30, and the quarter section of the tooth-shaped annular light guiding element 22 represents the light transmitting area 13 in a grating pattern. In the present utility model, the transparent area 13 is separated by the extending portion 26 to form the separation area 28, so that a clear boundary 131 and a clear boundary 132 can be formed at two ends of the transparent area, and the light guide ring of the conventional light-emitting knob only has a blurred boundary when a part of the light-emitting elements are turned on for lighting.
As shown in fig. 3, each extension 26 may have opposite first and second end edges 261, 262. The first end edge 261 is connected to the annular body 24, and the second end edge 262 faces the corresponding light emitting element 20. The first length L1 of the first end edge 261 may be the same as the second length L2 of the second end edge 262; in the present embodiment, the first length L1 is a dimension of the first end edge 261 of each extension 26 along (or substantially along) the radial direction of the toothed annular light guiding element 22, and the second length L2 is a dimension of the second end edge 262 of each extension 26 along (or substantially along) the radial direction of the toothed annular light guiding element 22. Thus, the extension 26 of this embodiment may be considered as a parallel structure, and the extension 26 may not be limited to the design features described above. Referring to fig. 6, fig. 6 is a schematic view illustrating a part of a tooth-shaped annular light guiding element 22A according to another embodiment of the utility model. In the foregoing embodiment, elements having the same numbers as those of the embodiment shown in fig. 3 have the same structure and function, and the description thereof will not be repeated. As shown in fig. 6, the extension portion 26A of the toothed annular light guiding element 22A may have a first end edge 261A and a second end edge 262A opposite to each other. The first end edge 261A is connected to the annular body 24, and the second end edge 262A faces the corresponding light emitting element 20. The first length L1 'of the first end edge 261A is different from the second length L2' of the second end edge 262A; for example, the second length L2 'is shorter than the first length L1', so that the extension portion 26A can have a tapered structure.
As further shown in FIG. 3, the partition 28 may have a first region edge 281 and a second region edge 282 opposite to each other. The first zone edge 281 may be aligned with the outer edge of the annular body 24 and the second zone edge 282 may be aligned with the inner edge of the annular body 24. The third length L3 of the first zone edge 281 may be the same as the fourth length L4 of the second zone edge 282, that is, the separation zone 28 may be a parallel air separation zone; the separation region 28 may not be limited to the design features described previously. Referring to fig. 7, fig. 7 is a schematic view illustrating a part of a structure of a tooth-shaped annular light guiding element 22B according to another embodiment of the utility model. In the foregoing embodiment, elements having the same numbers as those of the embodiment shown in fig. 3 have the same structure and function, and the description thereof will not be repeated.
As shown in fig. 7, the partition 28B of the tooth-shaped annular light guiding element 22B may have a first region edge 281B and a second region edge 282B opposite to each other. The first zone edge 281B may be aligned with the outer edge of the annular body 24 and the second zone edge 282B may be aligned with the inner edge of the annular body 24. The third length L5 of the first zone edge 281B may be different from the fourth length L6 of the second zone edge 282B, e.g., the third length L5 may be greater than the fourth length L6, that is, the separation zone 28B may be a fan-shaped air-spaced zone. Referring to fig. 3 and 7, each extension portion 26 may have a first side surface 32 and a second side surface 34 opposite to each other, and the first side surface 32 and the second side surface 34 face the adjacent extension portion 26, respectively. The first side surface 32 and the second side surface 34 are both planar, that is, the mating extension 26 has planar first side surface 32 and second side surface 34, either in the form of the parallel air-spaced partition 28 or the fan-shaped air-spaced partition 28B.
Referring to fig. 8, fig. 8 is a schematic view of a portion of a tooth-shaped annular light guiding element 22C according to another embodiment of the utility model. The extension portion 26 of the toothed annular light guiding element 22C may have a first side surface 36 and a second side surface 38 opposite to each other, and the first side surface 36 and the second side surface 38 face the adjacent extension portion 26, respectively. The first side surface 36 and the second side surface 38 may be designed as curved surfaces, respectively, so that the partition 28C of the tooth-shaped annular light guiding element 22C may be interpreted as a pillow-shaped or gourd-shaped air partition. In addition, the bottom surface 40 of the extension portion 26 faces the corresponding light emitting element 20, and the corresponding light emitting element 20 preferably corresponds to the center of the bottom surface 40, so as to ensure that the illumination light of the light emitting element 20 can be uniformly distributed and penetrate through the extension portion 26. The correspondence between the bottom surface 40 and the light emitting element 20 is not limited to the embodiment shown in fig. 8, but can be applied to other illustrated embodiments, and the description thereof will not be repeated.
The lighting knob 10 can alternately turn on the lighting functions of the plurality of lighting elements 20; by the arrangement design of the extension portion 26 and the partition 28 of the tooth-shaped annular light guiding element 22, the illumination brightness in the range is rapidly decreased due to the air space design of the partition 28, so that the cross-region interference of the adjacent light emitting elements 20 is not caused, and the light transmitting region 13 of the tooth-shaped annular light guiding element 22 can have a relatively obvious illumination boundary contrast. The luminous knob 10 can also simultaneously turn on the illumination functions of a plurality of continuous luminous elements 20, which also utilizes the air space design of the separation area 28 to rapidly reduce the illumination brightness, improve the contrast of illumination boundary, and make the illumination boundary of the light transmission area 13 of the luminous knob 10 clearer, thereby clearly indicating the rotation angle and range of the luminous knob 10 and not causing the cross-region interference of adjacent luminous elements 20.
In summary, the present utility model provides a light-emitting knob capable of avoiding light mixing and an annular backlight module thereof, wherein the light-emitting knob can be designed such that the light-emitting sequence of a plurality of light-emitting elements corresponds to the rotation angle of an operation knob relative to an annular body, and the tooth-shaped annular light-guiding elements of the annular backlight module are configured with adjacent extending portions and separation regions in the annular body; the extending parts can be solid structures made of light guide materials, and the separating areas are air spacing areas between the extending parts. Therefore, when the light-emitting elements output illumination light to the corresponding extending parts, the intensity of the illumination light can be rapidly decreased due to the design of the air interval of the separation area, and the light mixing phenomenon of the adjacent light-emitting elements can be effectively prevented.
It should be understood that the foregoing examples of the present utility model are provided merely for clearly illustrating the present utility model and are not intended to limit the embodiments of the present utility model, and that various other changes and modifications may be made therein by one skilled in the art without departing from the spirit and scope of the present utility model as defined by the appended claims.
Claims (10)
1. The utility model provides a ring-shaped backlight unit which characterized in that, this ring-shaped backlight unit includes:
a plurality of light emitting elements; and
a toothed annular light guide element disposed on the plurality of light emitting elements, the toothed annular light guide element comprising:
an annular body; and
and the plurality of extending parts are arranged on the same side of the annular body, respectively correspond to the plurality of light-emitting elements, and a separation area is formed between two adjacent extending parts in the plurality of extending parts.
2. The annular backlight module according to claim 1, wherein the annular body is of a circular ring structure or a polygonal ring structure.
3. The annular backlight module of claim 1, wherein each of the plurality of extending portions has a first end edge and a second end edge opposite to each other, the first end edge is connected to the annular body, the second end edge faces a corresponding light emitting element of the plurality of light emitting elements, and a first length of the first end edge is different from a second length of the second end edge.
4. The annular backlight module of claim 1, wherein each of the plurality of extending portions has a first end edge and a second end edge opposite to each other, the first end edge is connected to the annular body, the second end edge faces a corresponding light emitting element of the plurality of light emitting elements, and a first length of the first end edge is equal to a second length of the second end edge.
5. The annular backlight module of claim 1, wherein the partition has opposite first and second sides, the first side aligned with the outer edge of the annular body, the second side aligned with the inner edge of the annular body, and the third length of the first side is the same as the fourth length of the second side.
6. The annular backlight module of claim 1, wherein the partition has opposite first and second sides, the first side aligned with the outer edge of the annular body, the second side aligned with the inner edge of the annular body, and the third length of the first side is different from the fourth length of the second side.
7. The annular backlight module of claim 1, wherein each of the plurality of extending portions has a first side surface and a second side surface opposite to each other, the first side surface and the second side surface respectively face the adjacent extending portion, and the first side surface and the second side surface are respectively a plane.
8. The annular backlight module of claim 1, wherein each of the plurality of extending portions has a first side surface and a second side surface opposite to each other, the first side surface and the second side surface respectively face the adjacent extending portion, and the first side surface and the second side surface are respectively arc surfaces.
9. The annular backlight module of claim 1, wherein each of the plurality of extensions has a bottom surface facing a corresponding light emitting element of the plurality of light emitting elements, and the corresponding light emitting element corresponds to a center of the bottom surface.
10. A light-emitting knob, comprising the annular backlight module of any one of claims 1-9 and an operation knob, wherein the sequence of the light-emitting elements corresponds to the rotation angle of the operation knob relative to the annular body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321856369.3U CN220526233U (en) | 2023-07-14 | 2023-07-14 | Luminous knob and annular backlight module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321856369.3U CN220526233U (en) | 2023-07-14 | 2023-07-14 | Luminous knob and annular backlight module thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220526233U true CN220526233U (en) | 2024-02-23 |
Family
ID=89924667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321856369.3U Active CN220526233U (en) | 2023-07-14 | 2023-07-14 | Luminous knob and annular backlight module thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220526233U (en) |
-
2023
- 2023-07-14 CN CN202321856369.3U patent/CN220526233U/en active Active
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