Lighting device

Abstract

This utility model discloses a lighting device, comprising: a housing; an outer lens connected to the housing; a light source disposed inside the housing; a main support fixed inside the housing, and having a straight groove formed on the main support; a rotating ring rotatable about its own rotation axis, the rotation axis of the rotating ring being parallel to the extension direction of the straight groove, and having a helical groove formed on the rotating ring; and a light source support for holding the light source and including a plug-in portion, the plug-in portion being inserted into the straight groove and the helical groove, such that the rotation of the rotating ring can drive the light source support to move linearly along a direction parallel to the rotation axis of the rotating ring, thereby changing the distance between the light source and the outer lens. Accordingly, the lighting device of this utility model can achieve changes in the beam angle to meet the user's needs.

Description

Technical Field

[0001] This utility model relates to a lighting device, such as a spotlight, a track light, and a flashlight, etc. Background Technology

[0002] Conventional lighting fixtures typically have a fixed beam angle that cannot be manually adjusted by the user to suit their needs. For the few lighting fixtures that do offer adjustable beam angles, it's usually necessary to adjust the lamp head position to change the distance between the lens and the light source, which affects the product's appearance. Utility Model Content

[0003] To overcome the aforementioned deficiencies in the prior art, this utility model proposes a lighting device comprising: a housing; an outer lens connected to the housing; a light source disposed inside the housing; a main support fixed inside the housing and having a straight groove formed thereon; a rotating ring rotatable about its own rotation axis, wherein the rotation axis of the rotating ring is parallel to the extension direction of the straight groove, and a helical groove is formed on the rotating ring; and a light source support for holding the light source and including a connector that inserts into the straight groove and the helical groove, such that rotation of the rotating ring causes the light source support to move linearly along a direction parallel to the rotation axis of the rotating ring, thereby changing the distance between the light source and the outer lens. Accordingly, the user only needs to operate the rotating ring to change the distance between the light source and the outer lens without altering the appearance of the lighting device, thus achieving a change in the beam angle to meet the user's needs.

[0004] Furthermore, a plurality of circumferentially spaced scale marks are provided on the outer surface of the housing to define the beam angle range of the illumination device, and a pointer mark is provided on the outer surface of the rotating ring to indicate the beam angle of the illumination device. Accordingly, during operation, the user can achieve precise adjustment of the beam angle by observing the correspondence between the pointer mark and the scale mark.

[0005] Furthermore, the spiral groove extends for less than one turn on the inner circumferential surface of the rotating ring. Therefore, the user can adjust the beam angle over the entire range by rotating the ring with a small stroke, thus facilitating the manufacture and operation of the lighting device.

[0006] Furthermore, the rotating ring includes an annular corrugated portion formed on its inner circumferential surface, and the main support includes a protrusion formed on its outer surface and engaging with the annular corrugated portion. Accordingly, since the protrusion slides over the annular corrugated portion when the rotating ring rotates, the user receives tactile feedback to enhance the user experience when operating the rotating ring.

[0007] Furthermore, the main support includes a plurality of the linear slots, and the light source support includes a plurality of insertion parts equal in number to the linear slots, wherein each insertion part is inserted into a corresponding linear slot. This improves the connection stability of the components.

[0008] Furthermore, the lighting device also includes an inner lens, which is disposed inside the housing and positioned between the outer lens and the light source. This allows for more uniform light emission from the light source and more efficient beam control.

[0009] Furthermore, the inner lens is connected to the light source bracket. This facilitates the adjustment of the distance between the inner and outer lenses.

[0010] This utility model also proposes a lighting device, comprising: a first housing portion; an outer lens connected to the first housing portion; a second housing portion; a light source disposed inside the second housing portion; a main support connecting the first housing portion and the second housing portion, and having a straight groove formed on the main support; a rotating ring rotatable about its own rotation axis, wherein the rotation axis of the rotating ring is parallel to the extension direction of the straight groove, and a helical groove is formed on the rotating ring; and a light source support for holding the light source and including a plug-in portion inserted into the straight groove and the helical groove, such that rotation of the rotating ring can drive the light source support to move linearly along a direction parallel to the rotation axis of the rotating ring, thereby changing the distance between the light source and the outer lens. Accordingly, the user only needs to operate the rotating ring to change the distance between the light source and the outer lens, thereby changing the beam angle to meet the user's needs. Furthermore, the separate design of the first and second housing portions facilitates the manufacture and operation of the lighting device.

[0011] Furthermore, the main support includes a tubular sidewall, wherein the straight groove is formed on the tubular sidewall and extends in a direction parallel to the axial direction of the tubular sidewall. This facilitates the manufacturing of the main support and the arrangement of the straight groove.

[0012] Furthermore, the main support includes external threads located at both ends of the tubular sidewall and formed on the outer surface of the tubular sidewall for threaded engagement with internal threads formed on the inner surfaces of the first housing portion and the second housing portion. This facilitates the connection and assembly of the main support with the first housing portion and the second housing portion.

[0013] Furthermore, both the first housing portion and the second housing portion have a cylindrical shape. This results in a lighting device with a pleasing appearance.

[0014] Furthermore, the outer surfaces of the first housing portion, the rotating ring, and the second housing portion are continuous with each other. This further enhances the appearance of the lighting device.

[0015] Furthermore, a plurality of circumferentially spaced scale marks are provided on the outer surface of the first housing portion or the second housing portion to define the beam angle range of the illumination device, and a pointer mark is provided on the outer surface of the rotating ring to indicate the beam angle of the illumination device. Accordingly, during operation, the user can achieve precise adjustment of the beam angle by observing the correspondence between the pointer mark and the scale mark.

[0016] Furthermore, the spiral groove extends for less than one turn on the inner circumferential surface of the rotating ring. Therefore, the user can adjust the beam angle over the entire range by rotating the ring with a small stroke, thus facilitating the manufacture and operation of the lighting device.

[0017] Furthermore, the rotating ring includes an annular corrugated portion formed on its inner circumferential surface, and the main support includes a protrusion formed on its outer surface and engaging with the annular corrugated portion. Accordingly, since the protrusion slides over the annular corrugated portion when the rotating ring rotates, the user receives tactile feedback to enhance the user experience when operating the rotating ring.

[0018] Furthermore, the main support includes a plurality of the linear slots, and the light source support includes a plurality of insertion parts equal in number to the linear slots, wherein each insertion part is inserted into a corresponding linear slot. This improves the connection stability of the components.

[0019] Furthermore, the lighting device also includes an inner lens, which is disposed inside the second housing portion and positioned between the outer lens and the light source. This enables more uniform light emission from the light source and achieves more efficient beam control.

[0020] Furthermore, the inner lens is connected to the light source bracket. This facilitates the adjustment of the distance between the inner and outer lenses.

[0021] This invention also proposes a lighting device comprising: a housing on which an outer lens is attached, and a straight groove formed in the housing; a rotating ring rotatable about its own axis of rotation, wherein the axis of rotation is parallel to the extension direction of the straight groove, and a helical groove is formed in the rotating ring; and a light source support for holding the light source and including a connector that inserts into the straight groove and the helical groove, such that rotation of the rotating ring causes the light source support to move linearly toward or away from the outer lens, thereby changing the distance between the light source and the outer lens. Accordingly, the user only needs to operate the rotating ring to change the distance between the light source and the outer lens, thus changing the beam angle to meet the user's needs. Furthermore, since the straight groove is formed in the housing, the structural complexity is further reduced. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the present invention and constitute a part of the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 This is a schematic perspective view of the lighting device of this utility model; Figure 2 This is a schematic side sectional view of a portion of the lighting device of this utility model; Figure 3 This is a schematic perspective view of the rotating ring of this utility model; Figure 4 This schematically shows a perspective view of the main support frame of this utility model; and Figure 5 This is a schematic perspective view of the light source bracket of this utility model.

[0023] List of reference numerals 100 lighting fixtures 1. Shell 11 First shell section 12 Second shell section 2. External lens 3. Light source 4 Main support 41. Linear groove 42 convex part 43 Tubular sidewalls 5. Rotating ring 51 Spiral Groove 52. Annular corrugated section 6. Light source bracket 61 Connector 7. Internal lens S1 scale mark S2 pointer mark Detailed Implementation

[0024] The technical solutions of the embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] In the following detailed description, reference is made to the accompanying drawings, which form a part of this specification, in which specific embodiments of the present invention are illustrated by way of example. Regarding the drawings, directional terms such as “top,” “bottom,” “inner,” “outer,” “upper,” “lower,” “front,” and “rear” are used with reference to the orientation of the drawings described. Since the components of the embodiments of the present invention can be positioned in many different orientations, the directional terms are for illustrative purposes only and are not intended to be limiting. It should be understood that other embodiments can be used, and structural or logical changes can be made without departing from the scope of the present invention. Therefore, the following detailed description should not be construed as limiting, and the present invention is defined by the appended claims.

[0026] In one embodiment, the present invention provides a lighting device 100. The lighting device 100 generally includes a housing 1, an outer lens 2, a light source 3, a main support 4, a rotating ring 5, and a light source support 6.

[0027] The housing 1 involved in this utility model can be a single piece. Of course, this application is not limited to this; for example, as mentioned below and as... Figure 2 As shown, the lighting device 100 may also include two separate housing parts (i.e., a first housing part 11 and a second housing part 12) as the housing structure of the lighting device 100.

[0028] The outer lens 2 can be connected to the housing 1, for example, disposed at the end of the housing 1, so as to transmit light emitted by the light source 3 disposed inside the housing 1 to the outside of the lighting device 100. The light source 3 is such as an LED or other light-emitting device, which can be powered by an external power source or by a battery disposed inside the lighting device 100.

[0029] The main support can be fixed inside the housing 1, and a straight groove 41 can be formed on the main support 4. The main support 4 can have the following characteristics: Figure 4The tubular shape shown indicates that, in this case, the main support 4 may include a tubular sidewall 43 and a circumferential flange extending radially outward from the outer circumferential surface of the tubular sidewall 43 for engaging with an annular groove formed on the inner circumferential surface of the housing 1, thereby achieving a fixed connection of the main support 4 inside the housing 1. A straight groove 41 may be formed on the tubular sidewall 43 and extend in a direction parallel to the axial direction of the tubular sidewall 43. Of course, the form of the main support 4 is not limited to this; for example, the main support 4 may also be composed of multiple support segments that are separate from each other and circumferentially spaced. In such a case, the straight groove 41 may be formed on any one or more of these support segments.

[0030] The rotating ring 5 can rotate about its own axis of rotation (i.e., the axis), for example, it can be rotatably connected to the housing 1. For example, as Figure 1 and Figure 2 As shown, the rotating ring 5 can be limited in the axial direction by the housing 1 itself and in the radial direction by the main support 4. Of course, this application is not limited to this. For example, the rotating ring 5 may also include an annular rib extending radially inward from its inner circumferential surface to insert into an annular groove formed on the outer circumferential surface of the tubular sidewall 43 of the main support 4, so that the rotating ring 5 can also be limited in the axial direction by the main support 4.

[0031] The axis of rotation of the rotating ring 5 can be parallel to the extension direction of the straight groove 41, and a spiral groove 51 can be formed on the rotating ring 5. For example, the spiral groove 51 can be formed on the inner circumferential surface of the rotating ring 5, or the spiral groove 51 can be formed on the annular body of the rotating ring 5 in the form of a through groove.

[0032] The light source bracket 6 is used to hold the light source 3. For example, as... Figure 2 and Figure 5 As shown, the light source bracket 6 can be cup-shaped, and the light source 3 is mounted on the inner bottom surface of the light source bracket 6. The light source bracket 6 includes a connector 61, which is inserted into a straight groove 41 and a spiral groove 51, so that the rotation of the rotating ring 5 can drive the light source bracket 6 to move linearly along a direction parallel to the rotation axis of the rotating ring 5, thereby changing the distance between the light source 3 and the outer lens 2. Accordingly, when the user rotates the rotating ring 5 clockwise or counterclockwise, the light source bracket 6, together with the light source 3 it holds, moves linearly toward or away from the outer lens, and vice versa.

[0033] In addition, the rotating ring 5 can be fitted onto the outside of the main support 4, for example, as shown in the image. Figure 2As shown, the rotating ring 5 is positioned on the outermost side, the light source bracket 6 is positioned on the innermost side, and the main bracket 4 is positioned between the rotating ring 5 and the light source bracket 6. In this case, the insertion part 61 can be a one-way connecting protrusion extending outward from the outer surface of the light source bracket 6, and the insertion part 61 passes through the straight groove 41 and is inserted into the spiral groove 51. Of course, the present invention is not limited to this. For example, the rotating ring 5 is positioned on the outermost side, the main bracket 4 is positioned on the innermost side, and the light source bracket 6 is positioned between the rotating ring 5 and the light source bracket 6. In this case, the insertion part 61 can be a two-way connecting protrusion extending outward and inward from the outer and inner surfaces of the light source bracket 6, and the insertion part 61 is inserted into the spiral groove 51 and the straight groove 41, respectively. Alternatively, the main bracket 4 is positioned on the outermost side, the light source bracket 6 is positioned on the innermost side, and the rotating ring 5 is positioned between the main bracket 4 and the light source bracket 6. In this case, the spiral groove 51 is in the form of a through groove, and the insertion part 61 passes through the spiral groove 51 and is inserted into the straight groove 41.

[0034] Furthermore, a plurality of circumferentially spaced scale marks S1 can be provided on the outer surface of the housing 1 to define the beam angle range of the lighting device 100. In this invention, the beam angle range is preferably 25 degrees to 60 degrees, and accordingly, the plurality of scale marks S1 can be, for example, scale marks indicating 25 degrees, 40 degrees, 50 degrees, etc., using numbers. Of course, the beam angle range can be designed according to the actual needs of the user. In addition, a pointer mark S2 can be provided on the outer surface of the rotating ring 5 to indicate the beam angle of the lighting device 100, i.e., the current beam angle, which corresponds to the distance between the light source 3 and the outer lens 2.

[0035] Furthermore, the extension range of the spiral groove 51 on the inner circumferential surface of the rotating ring 5 can be less than one turn, preferably less than half a turn. In this case, in order to switch within the beam angle range, it is not necessary to rotate the rotating ring 5 more than 360 degrees, thereby facilitating the setting of the scale mark S1. Moreover, the case where the extension range of the spiral groove 51 is less than half a turn is particularly suitable for the structure of the integrated housing 1.

[0036] Furthermore, the rotating ring 5 may include an annular corrugated portion 52 formed on its inner circumferential surface, and the main support 4 includes a protrusion 42 formed on its outer surface and engaging with the annular corrugated portion 52. Accordingly, since the protrusion 42 slides over the annular corrugated portion 52 and provides a damping effect when the rotating ring 5 rotates, the user will receive tactile feedback, such as an intermittent damping sensation, or even auditory feedback, such as a clicking sound, when operating the rotating ring. At the same time, the engagement of the protrusion 42 and the annular corrugated portion 52 can also provide a certain degree of rotational position locking effect for the rotating ring 5. Of course, the rotational position locking of the rotating ring 5 can also be provided by other structures. For example, since the rotating ring 5 can be tightly fitted onto the outside of the main support 4, this locking can also be provided by the frictional force between the rotating ring 5 and the main support 4.

[0037] In addition, the main support 4 may include multiple straight grooves 41, for example Figure 4 The two linear slots 41 arranged opposite each other are shown, and the light source bracket 6 may include a plurality of insertion parts 61, the same number as the linear slots 41, wherein each insertion part 61 is inserted into a corresponding linear slot 41. When the insertion part 61 is positioned at the two ends of the linear slot 41, these two positions correspond to the upper and lower limits of the beam angle range, respectively.

[0038] Specifically, a transverse groove may be formed at the end of the straight groove 41, communicating with and extending transversely to the straight groove 41. Accordingly, after the user rotates the rotating ring 5 to a position corresponding to the upper or lower limit of the beam angle range, further rotation of the rotating ring 5 allows the insertion part 61 to travel into the transverse groove, thereby improving the ease of operation when selecting the upper and lower limits of the beam angle range.

[0039] Furthermore, the lighting device 100 may also include an inner lens 7, which is disposed inside the housing 1 and positioned between the outer lens 2 and the light source 3. Specifically, the inner lens 7 is connected to the light source bracket 6. For example, the inner lens 7 can be connected to the light source bracket 6 via a snap-fit ​​connection. In particular, in the case of a cup-shaped light source bracket 6, the inner lens 7 is at least partially disposed inside the light source bracket 6.

[0040] In another embodiment, the lighting device 100 may include a first housing portion 11, an outer lens 2 connected to the first housing portion 11, a second housing portion 12, a light source 3 disposed inside the second housing portion 12, a main bracket 4, a rotating ring 5, and a light source bracket 6.

[0041] In this case, the main support 4 connects the two separate housing parts (i.e., the first housing part 11 and the second housing part 12) together, and a straight groove 41 is provided on the main support 4.

[0042] The rotating ring 5 can be rotatably connected between the first housing portion 11 and the second housing portion 12 around its own axis of rotation. Similar to the previous embodiment, the rotating ring 5 can be limited in the axial direction by the first housing portion 11 and the second housing portion 12 or by the main support 4, and the rotating ring 5 is limited in the radial direction by the main support 4.

[0043] Similarly, the rotation axis of the rotating ring 5 can be parallel to the extension direction of the straight groove 41, and a spiral groove 51 is formed on the rotating ring 5. The light source support 6 is used to hold the light source 3 and includes a plug 61, which is inserted into the straight groove 41 and the spiral groove 51, so that the rotation of the rotating ring 5 can drive the light source support 6 to move linearly along a direction parallel to the rotation axis of the rotating ring 5, thereby changing the distance between the light source 3 and the outer lens 2.

[0044] Furthermore, the rotating ring 5 can be fitted onto the outside of the main support 4. Of course, similar to the previous embodiment, the positioning relationship between the rotating ring 5, the main support 4, and the light source support 6 is not limited to this.

[0045] Furthermore, when the main support 4 has a tubular shape, the main support 4 may include external threads located at both ends of the tubular sidewall 43 and formed on the outer surface of the tubular sidewall 43, for thread engagement with internal threads formed on the inner surfaces of the first housing portion 11 and the second housing portion 12. Of course, the present invention is not limited to this; for example, the main support 4 may be inserted into the first housing portion 11 and the second housing portion 12 via an interference fit.

[0046] Furthermore, both the first housing portion 11 and the second housing portion 12 have a cylindrical shape. In particular, the outer surfaces of the first housing portion 11, the rotating ring 5, and the second housing portion 12 are continuous with each other, thereby enabling the lighting device 100 to have a flat outer peripheral surface.

[0047] Furthermore, multiple scale marks S1 may be provided on the outer surface of the first housing portion 11 or the second housing portion 12. Preferably, pointer marks S2 are arranged on the outer surface of the rotating ring 5 adjacent to the multiple scale marks S1.

[0048] In another embodiment, the lighting device 100 may include: a housing 1, on which an outer lens 2 is connected, and on which a straight groove is formed; a rotating ring 5, rotatable about its own axis of rotation, for example rotatably connected to the housing 1, wherein the axis of rotation of the rotating ring 5 is parallel to the extension direction of the straight groove, and on which a helical groove 51 is formed; and a light source support 6 for holding the light source 3 and including a plug 61, the plug 61 being inserted into the straight groove and the helical groove 51, such that the rotation of the rotating ring 5 can cause the light source support 6 to move linearly toward or away from the outer lens 2, thereby changing the distance between the light source 3 and the outer lens 2. Unlike the previous two embodiments, the main support is omitted in this embodiment, and the straight groove is directly formed on the housing 1 to further simplify the structural complexity.

[0049] Furthermore, the rotating ring 5 can be fitted onto the outside of the housing 1, specifically onto the outside of the portion of the housing 1 provided with the straight groove. Of course, the rotating ring 5 can also be positioned inside the housing 1, in which case an opening is formed on the side wall of the housing 1 to facilitate user operation of the rotating ring 5.

[0050] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lighting device, characterized in that, The lighting device (100) includes: Shell (1); An outer lens (2) is connected to the housing (1); Light source (3), the light source (3) is disposed inside the housing (1); Main support (4), the main support (4) is fixed inside the housing (1), and a straight groove (41) is provided on the main support (4). A rotating ring (5) is rotatable about its own axis of rotation, wherein the axis of rotation of the rotating ring (5) is parallel to the extension direction of the straight groove (41), and a spiral groove (51) is formed on the rotating ring (5); and A light source bracket (6) is used to hold the light source (3) and includes a plug (61) which is inserted into the straight groove (41) and the spiral groove (51) so that the rotation of the rotating ring (5) can drive the light source bracket (6) to move linearly along a direction parallel to the rotation axis of the rotating ring (5), thereby changing the distance between the light source (3) and the outer lens (2).

2. The lighting device according to claim 1, characterized in that, A plurality of circumferentially spaced scale marks (S1) are provided on the outer surface of the housing (1) to define the beam angle range of the lighting device (100), and pointer marks (S2) are provided on the outer surface of the rotating ring (5) to indicate the beam angle of the lighting device (100).

3. The lighting device according to claim 1, characterized in that, The spiral groove (51) extends less than one turn on the inner circumferential surface of the rotating ring (5).

4. The lighting device according to claim 1, characterized in that, The rotating ring (5) includes an annular corrugated portion (52) formed on its inner circumferential surface, and the main support (4) includes a protrusion (42) formed on its outer surface and engaging with the annular corrugated portion (52).

5. The lighting device according to claim 1, characterized in that, The main support (4) includes a plurality of the linear slots (41), and the light source support (6) includes a plurality of the same number of the linear slots (41), wherein each of the linear slots (41) is inserted into a corresponding linear slot (41).

6. The lighting device according to claim 1, characterized in that, The lighting device (100) further includes an inner lens (7), which is disposed inside the housing (1) and positioned between the outer lens (2) and the light source (3).

7. The lighting device according to claim 6, characterized in that, The inner lens (7) is connected to the light source bracket (6).

8. A lighting device, characterized in that, The lighting device (100) includes: First shell part (11); An outer lens (2) is connected to the first housing portion (11); Second shell part (12); Light source (3), the light source (3) is disposed inside the second housing part (12); The main support (4) connects the first housing part (11) and the second housing part (12) together, and a straight groove (41) is provided on the main support (4). A rotating ring (5) is rotatable about its own axis of rotation, wherein the axis of rotation of the rotating ring (5) is parallel to the extension direction of the straight groove (41), and a spiral groove (51) is formed on the rotating ring (5); and A light source bracket (6) is used to hold the light source (3) and includes a plug (61) which is inserted into the straight groove (41) and the spiral groove (51) so that the rotation of the rotating ring (5) can drive the light source bracket (6) to move linearly along a direction parallel to the rotation axis of the rotating ring (5), thereby changing the distance between the light source (3) and the outer lens (2).

9. The lighting device according to claim 8, characterized in that, The main support (4) includes a tubular sidewall (43), wherein the straight groove (41) is formed on the tubular sidewall (43) and extends in a direction parallel to the axial direction of the tubular sidewall (43).

10. The lighting device according to claim 9, characterized in that, The main support (4) includes external threads located at both ends of the tubular sidewall (43) and formed on the outer surface of the tubular sidewall (43) for thread engagement with internal threads formed on the inner surfaces of the first housing portion (11) and the second housing portion (12).

11. The lighting device according to claim 8, characterized in that, Both the first housing portion (11) and the second housing portion (12) have a cylindrical shape.

12. The lighting device according to claim 11, characterized in that, The outer surfaces of the first housing portion (11), the rotating ring (5), and the second housing portion (12) are continuous with each other.

13. The lighting device according to claim 8, characterized in that, A plurality of circumferentially spaced scale marks (S1) are provided on the outer surface of the first housing portion (11) or the second housing portion (12) to define the beam angle range of the lighting device (100), and a pointer mark (S2) is provided on the outer surface of the rotating ring (5) to indicate the beam angle of the lighting device (100).

14. The lighting device according to claim 8, characterized in that, The spiral groove (51) extends less than one turn on the inner circumferential surface of the rotating ring (5).

15. The lighting device according to claim 8, characterized in that, The rotating ring (5) includes an annular corrugated portion (52) formed on its inner circumferential surface, and the main support (4) includes a protrusion (42) formed on its outer surface and engaging with the annular corrugated portion (52).

16. The lighting device according to claim 8, characterized in that, The main support (4) includes a plurality of the linear slots (41), and the light source support (6) includes a plurality of the same number of the linear slots (41), wherein each of the linear slots (41) is inserted into a corresponding linear slot (41).

17. The lighting device according to claim 8, characterized in that, The lighting device also includes an inner lens (7), which is disposed inside the second housing portion (12) and positioned between the outer lens (2) and the light source (3).

18. The lighting device according to claim 17, characterized in that, The inner lens (7) is connected to the light source bracket (6).

19. A lighting device, characterized in that, The lighting device includes: A housing (1) is provided with an external lens (2) connected to the housing (1) and a straight groove is provided on the housing (1); A rotating ring (5) is rotatable about its own rotation axis, wherein the rotation axis of the rotating ring (5) is parallel to the extension direction of the straight groove, and a spiral groove (51) is formed on the rotating ring (5); and A light source bracket (6) is used to hold the light source (3) and includes a plug (61) which is inserted into the straight groove and the spiral groove (51) so that the rotation of the rotating ring (5) can drive the light source bracket (6) to move linearly toward or away from the outer lens (2), thereby changing the distance between the light source (3) and the outer lens (2).

Images