Lamp with adjustable focal length
By designing a movable lens structure and focus structure in the lamp, the problem that existing lamps cannot adjust the focal length is solved, and the focal length is conveniently adjusted and stable fixated is achieved, which expands the application scenario and reduces costs.
Patent Information
- Application Number
- CN202421527315.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-06-28
AI Technical Summary
The existing direct-down lamps cannot adjust the focal length according to their own height, resulting in limited application scenarios and requires different structures for lamps of different heights, which increases costs.
A lamp with adjustable focal length is designed, adopting a lens structure and a focus structure. The lens structure can move up and down along the light path of the light source plate. The focus structure pushes the lens structure through the setting of the eccentric axis and the gap to achieve adjustment of the focal length.
It realizes convenient and adjustable focal length of the lamp, reduces the difficulty and cost of focusing, and expands the application scenarios of lamps.
Smart Images
Figure CN222849099U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lamp structures, in particular to a lamp with adjustable focal length. Background Art
[0002] Lamps are electronic devices used to achieve lighting effects. Different lamps need to be set with different focal lengths due to their different installation heights and locations to achieve light spot convergence and achieve lighting of a specific illumination range. In particular, due to the different heights of street lamp structures, street lamps need to be installed in combinations of different focal lengths.
[0003] Existing direct-down lamps usually adopt a fixed focal length structure, which means that their focal length cannot be adjusted according to their own height adjustment or change of use range, resulting in limited application scenarios of the lamps. At the same time, different structures need to be set for lamps of different heights, resulting in high cost of the lamps.
[0004] Therefore, a lamp with adjustable focal length came into being. Utility Model Content
[0005] The utility model provides a lamp with adjustable focal length, which mainly solves the problem that the existing direct-down lamps cannot adjust their focal length according to their own height adjustment or change of use range, resulting in limited application scenarios of the lamps. At the same time, different structures need to be set for lamps of different heights, resulting in high cost of the lamps.
[0006] The utility model provides a lamp with adjustable focal length, comprising:
[0007] A shell, wherein an opening is formed on one end surface of the shell;
[0008] A light source board, the light source board is built into the housing, and the light source board is arranged toward the opening end surface of the housing;
[0009] A lens structure, wherein the lens structure is stacked on the light path of the light source plate, and the lens structure can move up and down along the light path of the light source plate;
[0010] A focusing structure, wherein the outer edge of the focusing structure is disposed against the lens structure, and the focusing structure rotates around its own eccentric axis.
[0011] Preferably, a clamping piece is formed on the end surface protruding toward the focusing structure of the lens structure;
[0012] The edge of the focusing structure is provided with a plurality of notches, and the distances between all the notches and the eccentric axis are different;
[0013] The engaging piece and the notch are arranged to avoid each other.
[0014] Preferably, the notches are connected by arcs, and the radius of curvature of the arcs gradually increases.
[0015] Preferably, the focusing structure comprises:
[0016] A first action member, the outer edge of which is disposed against the lens structure;
[0017] A rotating shaft, wherein the acting members are arranged at both end portions of the rotating shaft, and the central axis of the rotating shaft is arranged away from the center of the acting members.
[0018] Preferably, the focusing structure further includes:
[0019] The second acting member is protruded and formed on the outer side of the rotating shaft, and the second acting member is arranged to abut against the lens structure; the top of the second acting member is at the same height as the outer edge of the first acting member.
[0020] Preferably, it also includes:
[0021] A rotating member, the rotating member is arranged on the outer side of the housing; the inner side of the rotating member is engaged and connected with the end surface of the first acting member;
[0022] The side wall of the shell is provided with a through hole for the rotating member to pass through, and the rotating member can rotate around its own central axis; the central axis of the rotating member is arranged to coincide with the central axis of the rotating shaft.
[0023] Preferably, it also includes:
[0024] A supporting structure, the supporting structure abutting against an end face of the lens structure away from the focusing structure; a positioning hole for the supporting structure to pass through is provided on the lens structure; the radial direction of the positioning hole is the same as the direction of the light path of the light source board;
[0025] The focusing structure and the lens structure are arranged on two sides of the light source board.
[0026] Preferably, it also includes:
[0027] A cover plate is arranged on the end surface opening of the shell; one end of the support structure is arranged against the cover plate toward the end surface of the shell, and the other end of the support structure is built into the positioning hole.
[0028] Preferably, it also includes:
[0029] A cover body is arranged outside the shell and covers the cover plate.
[0030] Preferably, it also includes:
[0031] A rotating structure, wherein the fixed end of the rotating structure is detachably arranged on the outside of the shell, and the movable end of the rotating structure is connected to the lamp bead.
[0032] As can be seen from the above, the application of the technical solution provided by the utility model can achieve the following beneficial effects:
[0033] First, the lamp proposed by the utility model realizes convenient and adjustable distance between the lens structure and the light source board through the setting of the focusing structure, and at the same time, a rotating part is provided on the lamp housing, and the focusing effect can be controlled by rotating, so that the focal length of the lamp can be adjusted without disassembling the lamp, making the focusing process of the lamp more convenient and greatly reducing the difficulty;
[0034] Second, the focus adjustment structure of the lamp proposed by the utility model can achieve the effect of adjusting the focal length by pushing the lens structure to change its setting position only through the setting of the eccentric shaft and the notch on the edge. At the same time, the notch can ensure the fixed use of any focal length, thereby realizing the stable adjustment of the focal length of the lamp;
[0035] Thirdly, the curvature radius of the arc between the notches on the focusing structure of the lamp proposed by the utility model gradually increases, which can realize smooth switching between different notches, thereby realizing effective adjustment of the focal length of the lamp;
[0036] Fourthly, in addition to the switching of the first function member, the focusing structure on the lamp proposed by the utility model is also provided with a second function member for assisting in pushing the lens structure, thereby reducing the resistance of the focusing structure in pushing the lens structure, and further ensuring the effective adjustment of the focal length of the lamp;
[0037] Fifth, a supporting structure is provided on the lamp proposed in the utility model, which is used to ensure that the lens structure moves along a preset path under the push of the focusing structure and can keep the position stable at any time, thereby achieving the structural stability of the lamp. BRIEF DESCRIPTION OF THE DRAWINGS
[0038] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0039] Figure 1 This is a schematic diagram of the structure of the lamp in the embodiment of the utility model;
[0040] Figure 2 An exploded view of a lamp in an embodiment of the utility model;
[0041] Figure 3This is a schematic diagram of the assembly structure of the focusing structure and the lens structure on the lamp in the embodiment of the utility model;
[0042] Figure 4 It is a partial structural diagram of the focusing structure and the lens structure on the lamp in the embodiment of the utility model. DETAILED DESCRIPTION
[0043] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0044] Existing direct-down lamps cannot adjust their focal length according to their own height or the change of the use range, which limits the application scenarios of the lamps. At the same time, different structures need to be set for lamps of different heights, resulting in high costs for the lamps.
[0045] like Figure 1 to Figure 4 As shown, in order to solve the above problems, the present embodiment proposes a lamp with adjustable focal length, including a shell 10, a light source board 20, a lens structure 30 and a focusing structure 40; an opening is formed on one end face of the shell 10; the light source board 20 is built into the shell 10, and the light source board 20 is arranged toward the open end face of the shell 10; the lens structure 30 is superimposed on the lighting path of the light source board 20, and the lens structure 30 can move up and down along the lighting path of the light source board 20; the outer edge of the focusing structure 40 is arranged in contact with the lens structure 30, and the focusing structure 40 rotates around its own eccentric axis.
[0046] Preferably, the housing 10 of the lamp in this embodiment is made of insulating material.
[0047] Preferably, in this embodiment, a plurality of LED lamps are arranged on the light source plate 20 ; a plurality of lenses are arranged on the lens structure 30 , and any lens and any LED lamp are arranged correspondingly on the same vertical line.
[0048] Preferably, in the present embodiment, the back of the light source board 20 is fixedly mounted to the inner top surface of the housing 10 by fasteners. Preferably, but not limited to, in the present embodiment, the focusing structure 40 and the lens structure 30 are arranged on both sides of the light source board 20. Since the back of the light source board 20 is fixedly mounted to the housing 10, the focusing structure 40 is arranged on the back of the light source board 20 and is arranged in contact with the lens structure 30 from the edges on both sides. At this time, the area of the lens structure 30 should be larger than the area of the light source board 20. On the premise of ensuring that all light passes through the lens structure 30, the arrangement space of the internal structure of the lamp is saved, and at the same time, the focusing structure 40 can effectively adjust the distance between the lens structure 30 and the light source board 20.
[0049] In this embodiment, the rotation axis of the focusing structure 40 is an eccentric axis, so the distance between the rotation axis and the outer edge is uncertain. Since the outer edge of the focusing structure 40 is arranged in contact with the lens structure 30, it can be used to push the lens structure 30 to move up and down along the lighting path of the light source panel 20, thereby achieving effective adjustment of the focal length of the lamp.
[0050] More specifically, a clamping member 31 is formed on the end surface of the lens structure 30 protruding toward the focusing structure 40; a plurality of notches 41 are arranged on the edge of the focusing structure 40, and the distances between all the notches 41 and the eccentric axis are different; the clamping member 31 and the notches 41 are arranged to avoid each other.
[0051] Preferably, three notches 41 are provided on the edge of the focusing structure 40 in this embodiment, and the distances between the three notches 41 and the eccentric axis are different, so that the lamp proposed in this embodiment can achieve three different focal length adjustments, such as 50, 75 and 100.
[0052] Preferably, in this embodiment, the width of the engaging member 31 is equal to the thickness of the notch 41 , which can effectively ensure the engaging installation of the engaging member 31 and the notch 41 and avoid derailment.
[0053] Preferably, in this embodiment, the engaging member 31 is provided in the form of an inclined gently protruding projection, which can effectively reduce the difficulty of the engaging connection between the notch 41 and the protrusion.
[0054] Preferably, in this embodiment, the notch 41 and the engaging member 31 are arranged to avoid each other, specifically, the end of the engaging member 31 and the notch 41 are arranged to avoid each other.
[0055] Preferably, in this embodiment, the distance between the notch 41 and the eccentric axis of the focusing structure 40 should increase in one direction.
[0056] In this embodiment, the notch 41 and the engaging member 31 on the focus adjustment structure 40 are used to fix the distance between the current lens structure 30 and the light source board 20 , thereby achieving the adjustment and fixation of the focal length.
[0057] More specifically, the notches 41 are connected in an arc shape, and the curvature radius of the arc shape gradually increases.
[0058] In this embodiment, an arc-shaped connection with a variable curvature radius is used to allow the engaging member 31 of the lens structure 30 to switch between the notches 41 of different focusing structures 40, and the switching difficulty is relatively low, thus achieving a smooth switching effect.
[0059] More specifically, the focusing structure 40 includes a first acting member 42 and a rotating shaft 43; the outer edge of the first acting member 42 is arranged to abut the lens structure 30; the acting members are arranged at both ends of the rotating shaft 43, and the central axis of the rotating shaft 43 is arranged to deviate from the center of the first acting member 42.
[0060] Preferably, the focusing structure 40 in this embodiment further includes a second actuating member 44 protruding from the outside of the rotating shaft 43 ; the second actuating member 44 is disposed against the lens structure 30 ; and the top of the second actuating member 44 is at the same height as the outer edge of the first actuating member 42 .
[0061] Preferably, in this embodiment, the first acting member 42 is a cylindrical structure, and the notch 41 is disposed on the outer edge of the first acting member 42 .
[0062] Preferably, in this embodiment, the second acting member 44 should be disposed close to the edge of the rotating shaft 43 , that is, close to the first acting member 42 , so that the second acting member 44 can avoid the light source panel 20 and be disposed in contact with the lens structure 30 .
[0063] Preferably, the focusing structure 40 in this embodiment should also include a limit member 45, which is arranged on the back of the light source panel 20 and is a semi-annular structure. The limit member 45 is arranged around the outer side of the rotating shaft 43 to limit or support the setting height, rotation range and setting position of the rotating shaft 43.
[0064] In this embodiment, the first acting member 42 on the focusing structure 40 is used to fix the distance between the current light source board 20 and the lens structure 30, and the second acting member 44 is used to push the lens structure 30 in a rotating state, thereby achieving distance adjustment between the light source board 20 and the lens structure 30.
[0065] More specifically, it also includes a rotating member 50 arranged on the outside of the shell 10; the inner side of the rotating member 50 is snap-connected with the end face of the first acting member 42; the side wall of the shell 10 is provided with a through hole for the rotating member 50 to pass through, and the rotating member 50 can rotate around its own central axis; the central axis of the rotating member 50 is arranged to coincide with the central axis of the rotating shaft 43.
[0066] Preferably, in this embodiment, the inner protrusion of the rotating member 50 forms a linkage structure, and the end face of the first acting member 42 is provided with a linkage groove 46 which is arranged to avoid the linkage structure. After the linkage structure and the linkage groove 46 are fixedly connected, the synchronous rotation effect of the rotating member 50 and the first acting member 42 and even the focusing structure 40 can be achieved.
[0067] Preferably, in this embodiment, the linkage groove 46 on the end surface of the first acting member 42 is connected to any notch 41 .
[0068] Preferably, in this embodiment, a plurality of digital markings are formed on the outer side of the through hole on the shell 10, and any digital marking corresponds to a different focal length on the lamp. The rotating member 50 can be rotated to any digital marking to indicate the focal length adjustment effect inside the lamp.
[0069] Preferably, in this embodiment, the rotating member 50 is provided with a cross pattern on the outer side, and the effect of engaging and rotating the rotating member 50 can be achieved by a corresponding cross protrusion tool.
[0070] In this embodiment, the provision of the rotating member 50 allows the focal length to be adjusted directly from the outside after the lamp is assembled without disassembling the lamp, thereby improving the adjustment efficiency and reducing the difficulty of adjustment.
[0071] More specifically, the lamp is further provided with a support structure 60 abutting against the end face of the lens structure 30 away from the focusing structure 40 ; a positioning hole 32 is opened on the lens structure 30 for the support structure 60 to pass through; the radial direction of the positioning hole 32 is the same as the light path direction of the light source board 20 .
[0072] Preferably, the support structure 60 in this embodiment includes a bolt, and the height of the bolt should be greater than the depth of the positioning hole 32. Preferably, but not limited to, when the distance between the lens structure 30 and the light source board 20 is the farthest, the free end of the bolt should partially extend into the positioning hole 32 to ensure that the later movement path of the lens structure 30 can only move along the radial direction of the positioning hole 32, that is, move on the illumination path of the light source board 20.
[0073] Preferably, in this embodiment, an elastic structure is provided on the outer cover of the support structure 60, so that the lens structure 30 always has a tendency to move toward the light source board 20, and under the abutment of the second acting member 44 on the focusing structure 40, the lens structure 30 is supported by the elastic structure to achieve fixation at various positions.
[0074] In this embodiment, the support structure 60 may be used to limit the moving path of the lens structure 30 , thereby ensuring the convergence effect of the lens structure 30 on the light emitted by the light source panel 20 .
[0075] More specifically, it also includes a cover plate 70 disposed at the end opening of the shell 10 ; one end of the support structure 60 abuts against the end surface of the cover plate 70 facing the shell 10 , and the other end of the support structure 60 is built into the positioning hole 32 .
[0076] Preferably, in this embodiment, the cover plate 70 and the housing 10 are made of the same insulating material.
[0077] Preferably, in this embodiment, a light-transmitting structure such as light-transmitting glass is provided in the area of the cover plate 70 located in the light extension path.
[0078] Preferably, in this embodiment, the cover plate 70 is at least equal to the size of the lens structure 30, so that the support structure 60 is disposed against the cover plate 70. Preferably, but not limited to, in this embodiment, the support structure 60 is disposed against the edge of the cover plate 70.
[0079] More specifically, the housing 10 further includes a cover 80 which is disposed outside the housing 10 and covers the cover plate 70 .
[0080] Preferably, the cover body 80 in this embodiment is a hollow structure, and after covering the cover plate 70 , it is detachably connected to the outer center line of the shell 10 .
[0081] More specifically, it also includes a rotating structure 90; the fixed end of the rotating structure 90 is detachably arranged on the outside of the shell 10, and the movable end is connected to the lamp post.
[0082] To sum up, this embodiment proposes a lamp with adjustable focal length, which realizes the focusing effect of the lamp by rotating the focusing structure and adjusting the distance between the lens structure and the light source board. The adjustment method is relatively simple, and the focal length can be adjusted from the outside through an external rotating part, avoiding the need to disassemble the lamp when adjusting the focal length, further reducing the difficulty of adjustment.
[0083] The above-described implementation methods do not constitute a limitation on the protection scope of the technical solution. Any modification, equivalent replacement and improvement made within the spirit and principle of the above-described implementation methods shall be included in the protection scope of the technical solution.
Claims
1. A lamp with adjustable focal length, characterized in that: include: A shell, wherein an opening is formed on one end surface of the shell; A light source board, the light source board is built into the housing, and the light source board is arranged toward the opening end surface of the housing; A lens structure, wherein the lens structure is stacked on the light path of the light source plate, and the lens structure can move up and down along the light path of the light source plate; A focusing structure, wherein the outer edge of the focusing structure is disposed against the lens structure, and the focusing structure rotates around its own eccentric axis.
2. The focal length adjustable lamp according to claim 1, characterized in that: The end surface of the lens structure facing the focusing structure is convexly formed with a clamping piece; The edge of the focusing structure is provided with a plurality of notches, and the distances between all the notches and the eccentric axis are different; The engaging piece and the notch are arranged to avoid each other.
3. The focal length adjustable lamp according to claim 2, characterized in that: The notches are connected by arcs, and the curvature radius of the arcs gradually increases.
4. A lamp with adjustable focal length according to any one of claims 1 to 3, characterized in that: The focusing structure comprises: A first action member, wherein an outer edge of the first action member is disposed in contact with the lens structure; A rotating shaft, the two end portions of which are provided with the acting members, and the central axis of the rotating shaft is arranged to deviate from the center of the first acting member.
5. The focal length adjustable lamp according to claim 4, characterized in that: The focusing structure also includes: The second acting member is protruded and formed on the outer side of the rotating shaft, and the second acting member is arranged to abut against the lens structure; the top of the second acting member is at the same height as the outer edge of the first acting member.
6. The focal length adjustable lamp according to claim 5, characterized in that: Also includes: A rotating member, the rotating member is arranged on the outer side of the housing; the inner side of the rotating member is engaged and connected with the end surface of the first acting member; The side wall of the shell is provided with a through hole for the rotating member to pass through, and the rotating member can rotate around its own central axis; the central axis of the rotating member is arranged to coincide with the central axis of the rotating shaft.
7. The focal length adjustable lamp according to claim 6, characterized in that: Also includes: A supporting structure, the supporting structure abutting against an end face of the lens structure away from the focusing structure; a positioning hole for the supporting structure to pass through is provided on the lens structure; the radial direction of the positioning hole is the same as the direction of the light path of the light source board; The focusing structure and the lens structure are arranged on two sides of the light source board.
8. The focal length adjustable lamp according to claim 7, characterized in that: Also includes: A cover plate is arranged on the end surface opening of the shell; one end of the support structure abuts against the end surface of the cover plate facing the shell, and the other end of the support structure is built into the positioning hole.
9. The focal length adjustable lamp according to claim 8, characterized in that: Also includes: A cover body is arranged outside the shell and covers the cover plate.
10. The focal length adjustable lamp according to claim 9, characterized in that: Also includes: A rotating structure, wherein the fixed end of the rotating structure is detachably arranged on the outside of the shell, and the movable end of the rotating structure is connected to the lamp post.