Lens module and lamp

Abstract

The utility model provides a lens module and a lamp, and belongs to the technical field of lamps, the lens module comprises a lens cover with an annular structure, and a first annular lens which is formed on the lower surface of the lens cover and protrudes downwards; the first annular lens is provided with a first accommodating space for accommodating the light-emitting unit; the inner wall of the first accommodating space forms a first light incident surface; a first light emitting surface is formed on the outer surface of the first annular lens; the first light incident surface comprises a first inner light incident surface and a first outer light incident surface, the first inner light incident surface faces the middle part of the lens cover, and the first outer light incident surface faces the outer edge part of the lens cover; with the optical axis of the light-emitting unit as a reference, a first light-in intersection point of the first inner light-in surface and the first outer light-in surface deviates from the optical axis, and the first light-in intersection point is located between the optical axis and the first outer light-in surface. According to the lens module provided by the utility model, the light-emitting unit deviates to the first inner light-in surface, and the first inner light-in surface receives a large amount of light, so that a dark area in the middle of a lamp is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of lamps, and more specifically, relates to a lens module and a lamp. Background Art

[0002] Ceiling lamps have become an important product for home lighting. Currently, commonly used ceiling lamps usually include a base, a light source board arranged on the base, a lens module arranged on the light source board, and a lampshade covering the lens module. Among them, the lens module is the core component of the ceiling lamp, which distributes the LED light source generated by the LED lamp beads.

[0003] In the prior art, lens modules usually use two ways to distribute light. One is to use only a plurality of single lenses arranged in a circle. When this type of lens module is adapted to a lampshade, the light color on the surface of the lampshade is uniform, but when it is adapted to a lampshade with a higher height, the illumination on the surface of the lampshade is low. The other is to use only a ring-shaped tubular lens. When this type of lens module is adapted to a lampshade, the illumination on the surface of the lampshade is high, but there is a problem of uneven light color on the surface of the lampshade, especially when the lens module and the light source board are annular structures, the middle of the lens module is hollowed out, and LED lamp beads cannot be placed, resulting in less light output from the middle hollow area of ​​the lens module, causing a dark area in the middle of the lampshade. Utility Model Content

[0004] The utility model aims to provide a lens module and a lamp, aiming to solve the technical problem in the prior art that the light distribution of the tubular lens leads to a dark area in the middle of the lamp and uneven light emission.

[0005] To achieve the above-mentioned purpose, in a first aspect, an embodiment of the utility model provides a lens module, comprising a lens cover of an annular structure, and a first annular lens formed on the lower surface of the lens cover and protruding downward;

[0006] The first annular lens has a first accommodating space for accommodating the light-emitting unit; the inner wall of the first accommodating space forms a first light incident surface; the outer surface of the first annular lens forms a first light emitting surface;

[0007] The first light incident surface includes a first inner light incident surface and a first outer light incident surface, the first inner light incident surface faces the middle part of the lens cover, and the first outer light incident surface faces the outer edge part of the lens cover; wherein, with the optical axis of the light-emitting unit as a reference, a first light incident intersection point of the first inner light incident surface and the first outer light incident surface deviates from the optical axis, and the first light incident intersection point is located between the optical axis and the first outer light incident surface.

[0008] In combination with the first aspect, in a possible implementation manner, with the optical axis as a reference, a distance from the optical axis to an inner edge of the first light emitting surface is greater than a distance from the optical axis to an outer edge of the first light emitting surface.

[0009] In some embodiments, the lens module further includes a second annular lens formed on the lower surface of the lens cover and protruding downward, and the second annular lens is located at the radial periphery of the first annular lens;

[0010] The second annular lens has a second accommodating space for accommodating the light-emitting unit; the inner wall of the second accommodating space forms a second light incident surface; the second light incident surface is symmetrically arranged with respect to the optical axis;

[0011] The outer surface of the second annular lens forms a second light-emitting surface; the second light-emitting surface is symmetrically arranged with respect to the optical axis.

[0012] In some embodiments, the lens module further includes a second annular lens formed on the lower surface of the lens cover and protruding downward, and the second annular lens is located at the radial periphery of the first annular lens;

[0013] The second annular lens has a second accommodating space for accommodating the light-emitting unit; the inner wall of the second accommodating space forms a second light incident surface; the outer surface of the second annular lens forms a second light emitting surface;

[0014] The second light incident surface includes a second inner light incident surface and a second outer light incident surface, the second inner light incident surface faces the middle part of the lens cover, and the second outer light incident surface faces the outer edge part of the lens cover; wherein, with the optical axis as a reference, a second light incident intersection point of the second inner light incident surface and the second outer light incident surface deviates from the optical axis, and the second light incident intersection point is located between the optical axis and the second outer light incident surface.

[0015] In some embodiments, with the optical axis as a reference, a distance from the optical axis to an inner edge of the second light emitting surface is greater than a distance from the optical axis to an outer edge of the second light emitting surface.

[0016] In some embodiments, a plurality of compensation lenses are further formed on the lower surface of the lens cover, and the plurality of compensation lenses are located between the first annular lens and the second annular lens.

[0017] In some embodiments, the first annular lens includes a plurality of first sub-lenses spaced apart along the circumferential direction, and the second annular lens includes a plurality of second sub-lenses spaced apart along the circumferential direction;

[0018] The second sub-lens corresponds to the first sub-lens in a radial direction one by one, and the compensation lens is provided between an end portion of the second sub-lens and an end portion of the first sub-lens.

[0019] The beneficial effect of the lens module provided by the utility model is that compared with the prior art, the lens module of the utility model forms a first annular lens on the lens cover, and the first annular lens surrounds the lens cover, so that the first annular lens has a first inner light incident surface facing the middle part of the lens cover and a first outer light incident surface facing the outer edge part of the lens cover. Since the first light incident intersection point of the first inner light incident surface and the first outer light incident surface deviates from the optical axis of the light-emitting unit, and the first light incident intersection point is located between the optical axis and the first outer light incident surface, that is, the light-emitting unit is biased toward the first inner light incident surface, and the first inner light incident surface receives a large amount of light, and more light is irradiated to the middle part of the lens cover through the first inner light incident surface and the first light emitting surface, thereby avoiding the occurrence of a dark area in the middle part of the lamp and ensuring that the overall light output of the lamp is uniform.

[0020] In a second aspect, the embodiment of the utility model further provides a lamp, comprising:

[0021] substrate;

[0022] A light source board is an annular structure and is fixedly disposed on the substrate; a plurality of light-emitting units are disposed on the light source board; and

[0023] The lens module is covered below the light source board.

[0024] In combination with the second aspect, in a possible implementation manner, a plurality of hooks are respectively provided on the inner edge and the outer edge of the lens cover, and the hooks abut against the upper surface of the light source board.

[0025] In combination with the second aspect, in a possible implementation, the substrate is provided with a downwardly protruding annular boss, and the light source board and the lens cover are fixed on the annular boss;

[0026] The lamp also includes a driving box, which is fixedly arranged on the base plate and located in the annular inner cavity of the annular boss.

[0027] The lamp provided by the utility model can avoid dark areas in the middle and transition parts of the lamp due to the adoption of the above-mentioned lens module, and can achieve a larger light output angle, thereby ensuring uniform light emission of the lamp as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1A schematic diagram of the structure of a lens module provided by an embodiment of the utility model;

[0030] Figure 2 A schematic diagram of the cross-sectional structure of a first annular lens of a lens module provided in an embodiment of the utility model;

[0031] Figure 3 A schematic diagram of the cross-sectional structure of a second annular lens of a lens module provided by an embodiment of the utility model;

[0032] Figure 4 A schematic diagram of the structure of a lamp provided in the first embodiment of the utility model;

[0033] Figure 5 A schematic diagram of the exploded structure of a lamp provided in the first embodiment of the utility model;

[0034] Figure 6 A schematic diagram of the structure of a lamp provided in a second embodiment of the utility model;

[0035] Figure 7 A schematic diagram of the structure of a lamp provided in a third embodiment of the utility model;

[0036] Figure 8 A schematic diagram of the structure of a lamp provided in a fourth embodiment of the utility model;

[0037] Fig. 9 A schematic diagram of light emission of a first annular lens provided in an embodiment of the utility model;

[0038] Fig.10 A schematic diagram of light emission of the second annular lens provided in an embodiment of the utility model.

[0039] In the figure:

[0040] 1. Lens cover; 11. Hook;

[0041] 2. first annular lens; 21. first accommodating space; 22. first light incident surface; 221. first inner light incident surface; 222. first outer light incident surface; 23. first light emitting surface; 24. first sub-lens;

[0042] 3. second annular lens; 31. second accommodating space; 32. second light incident surface; 321. second inner light incident surface; 322. second outer light incident surface; 33. second light emitting surface; 34. second sub-lens;

[0043] 4. Compensation lens;

[0044] 5. substrate; 51. annular boss;

[0045] 6. light source board; 61. light emitting unit; 611. optical axis;

[0046] 7. Driver box. DETAILED DESCRIPTION

[0047] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0048] Please also read Figure 1 and Figure 2 Now, the lens module provided by the utility model is described. The lens module comprises a lens cover 1 of an annular structure, and a first annular lens 2 formed on the lower surface of the lens cover 1 and protruding downward.

[0049] The first annular lens 2 has a first accommodating space 21 for accommodating the light emitting unit 61. The inner wall of the first accommodating space 21 forms a first light incident surface 22. The outer surface of the first annular lens 2 forms a first light emitting surface 23. The light emitted by the light emitting unit 61 is emitted through the first light incident surface 22 and the first light emitting surface 23 in sequence.

[0050] The first light incident surface 22 includes a first inner light incident surface 221 and a first outer light incident surface 222, the first inner light incident surface 221 faces the middle part of the lens cover 1, and the first outer light incident surface 222 faces the outer edge part of the lens cover 1; wherein, taking the optical axis 611 of the light-emitting unit 61 as a reference, a first light incident intersection point O1 of the first inner light incident surface 221 and the first outer light incident surface 222 deviates from the optical axis 611, and the first light incident intersection point O1 is located between the optical axis 611 and the first outer light incident surface 222.

[0051] The lens cover 1 is an annular structure, which may be a circular ring, an elliptical ring, a square ring, or a polygonal ring. This embodiment does not limit the specific structure of the lens cover 1 , as long as the middle portion thereof is hollowed out and the first annular lens 2 is disposed around the lens cover 1 .

[0052] The first annular lens 2 is formed on the lower surface of the lens cover 1. It should be noted that the "lower" defined here is defined by the emission direction of light from the light-emitting unit 61. Generally, for ceiling lamps, the lens module is located below the light-emitting unit 61, and the light-emitting unit 61 emits light downward. Of course, for side-emitting lamps such as wall-mounted lamps and wall lamps, the "lower" here refers to the outer surface of the lens cover 1. Therefore, the "lower" defined in this embodiment is not "lower" in the vertical direction, but is based on the emission direction of light. The definition of "lower" is only for the convenience of describing the positional relationship between the first annular lens 2 and the lens cover 1.

[0053] The first annular lens 2 is also annular, and the cross-sections at all points on the circumference of the first annular lens 2 are the same. The first accommodation space 21 is used to place the light-emitting unit 61, and a plurality of light-emitting units 61 can be placed in the first accommodation space 21, and the light-emitting unit 61 is preferably an LED lamp bead.

[0054] The first light incident surface 22 is an arched surface that arches downward, one side of the arched surface is the first inner light incident surface 221, and the other side of the arched surface is the first outer light incident surface 222. The arched center point of the arched surface is the first light incident intersection point O1. It should be noted that, on the cross section at any point in the circumference of the first annular lens 2, the first light incident intersection point O1 is a point, such as Figure 2 As shown, however, in the circumferential direction of the first annular lens 2, the intersection of the first inner light incident surface 221 and the first outer light incident surface 222 is a curve. The first light incident intersection O1 is used here to define the positional relationship with the optical axis 611 of the light emitting unit 61.

[0055] The first light emitting surface 23 is also an arched surface that arches downward, but the arching curvature is smaller than the arching curvature of the first light incident surface 22. In order to ensure uniform light emission, the first light emitting surface 23 includes a first inner light emitting surface facing the middle part of the lens cover 1, a first lower light emitting surface facing the bottom of the lens cover 1, and a first outer light emitting surface facing the outer edge of the lens cover 1. Among them, the first inner light emitting surface and the first outer light emitting surface are the two side arc surfaces of the arched surface, respectively, the first lower light emitting surface is an intermediate transition surface, and the first lower light emitting surface is preferably perpendicular to the optical axis 611.

[0056] Compared with the prior art, the lens module provided by the utility model has a first light incident intersection O1 that deviates from the optical axis 611 of the light-emitting unit 61 and is located between the optical axis 611 and the first external light incident surface 222, that is, the light-emitting unit 61 is biased toward the first inner light incident surface 221, and the upper half of the first inner light incident surface 221 is close to the light-emitting unit 61, so that the first inner light incident surface 221 receives a large amount of light as a whole, and more light can pass through the first inner light incident surface 221 (especially the upper half of the first inner light incident surface 221) and the first light emitting surface 23 to illuminate the middle part of the lens cover 1, such as Fig. 9 As shown, this avoids the appearance of a dark area in the middle of the lamp and ensures that the overall light output of the lamp is uniform.

[0057] In some embodiments, the first light emitting surface 23 may be formed as follows: Figure 2 The structure shown, see Figure 2 , taking the optical axis 611 as a reference, the distance from the optical axis 611 to the inner edge of the first light emitting surface 23 is greater than the distance from the optical axis 611 to the outer edge of the first light emitting surface 23 .

[0058] The first light-emitting surface 23 includes a first inner light-emitting surface, a first lower light-emitting surface and a first outer light-emitting surface. The distance from the optical axis 611 to the inner edge of the first light-emitting surface 23 is greater than the distance from the optical axis 611 to the outer edge of the first light-emitting surface 23. That is to say, the radial distance from the first inner light-emitting surface to the optical axis 611 is greater than the radial distance from the first outer light-emitting surface to the optical axis 611. The light-emitting area of ​​the first inner light-emitting surface is greater than the light-emitting area of ​​the first outer light-emitting surface, which can further increase the light emitted to the middle part of the lens cover 1 and further improve the problem of the dark area in the middle.

[0059] In some embodiments, the lens mold can also be used as follows Figure 1 and Figure 3 The structure shown, see Figure 1 and Figure 3 The lens module also includes a second annular lens 3 formed on the lower surface of the lens cover 1 and protruding downward, and the second annular lens 3 is located at the radial periphery of the first annular lens 2.

[0060] The second annular lens 3 has a second accommodating space 31 for accommodating the light-emitting unit 61; the inner wall of the second accommodating space 31 forms a second light incident surface 32; the second light incident surface 32 is symmetrically arranged with respect to the optical axis 611; the outer surface of the second annular lens 3 forms a second light emitting surface 33; the second light emitting surface 33 is symmetrically arranged with respect to the optical axis 611.

[0061] The second annular lens 3 is also arranged around the lens cover 1 . Preferably, the second annular lens 3 is close to the outer edge of the lens cover 1 , and the first annular lens 2 is close to the inner edge of the lens cover 1 .

[0062] The cross sections of the second annular lens 3 at all points on the circumference are the same. The second accommodating space 31 is used to place the light emitting unit 61 , and a plurality of light emitting units 61 can be placed in the second accommodating space 31 .

[0063] The second light incident surface 32 is also an arched surface that arches downward, one side of the arched surface is the second inner light incident surface 321, and the other side of the arched surface is the second outer light incident surface 322. The arched center point of the arched surface is the second light incident intersection point O2. It should be noted that, on the cross section at any point in the circumference of the second annular lens 3, the second light incident intersection point O2 is a point, such as Figure 3 As shown, however, in the circumferential direction of the second annular lens 3, the intersection of the second inner light incident surface 321 and the second outer light incident surface 322 is a curve. The second light incident intersection O2 is used here to define the positional relationship with the optical axis 611 of the light emitting unit 61.

[0064] The second light emitting surface 33 is also an arched surface that arches downward, but the arching curvature is smaller than the arching curvature of the second light incident surface 32. In order to ensure uniform light emission, the second light emitting surface 33 includes a second inner light emitting surface facing the middle part of the lens cover 1, a second lower light emitting surface facing the bottom of the lens cover 1, and a second outer light emitting surface facing the outer edge of the lens cover 1. Among them, the second inner light emitting surface and the second outer light emitting surface are the two side arc surfaces of the arched surface, the second lower light emitting surface is the middle transition surface, and the second lower light emitting surface is preferably perpendicular to the optical axis 611.

[0065] A plurality of light emitting units 61 are also placed in the second accommodation space 31, which have the same function as the first annular lens 2 and are also used for light distribution. The difference between the second annular lens 3 and the first annular lens 2 is that the second light incident surface 32 is symmetrically arranged with respect to the optical axis 611, and the second light emitting surface 33 is also symmetrically arranged with respect to the optical axis 611. In other words, the second annular lens 3 emits light uniformly to both sides thereof. Fig.10 shown.

[0066] The second annular lens 3 is added to the periphery of the first annular lens 2 to increase the light output at the outer edge of the lens module so as to make the light output of the lamp uniform. Preferably, the combination of the second annular lens 3 and the first annular lens 2 is suitable for large and medium-sized lamps.

[0067] In another variant embodiment, the above-mentioned lens module also includes a second annular lens 3 formed on the lower surface of the lens cover 1 and protruding downward, and the second annular lens 3 is located at the radial periphery of the first annular lens 2; the second annular lens 3 has a second accommodating space 31 for accommodating the light-emitting unit 61; the inner wall of the second accommodating space 31 forms a second light incident surface 32; the outer surface of the second annular lens 3 forms a second light emitting surface 33.

[0068] The second light incident surface 32 includes a second inner light incident surface 321 and a second outer light incident surface 322, the second inner light incident surface 321 faces the middle part of the lens cover 1, and the second outer light incident surface 322 faces the outer edge part of the lens cover 1; wherein, with the optical axis 611 as a reference, a second light incident intersection point of the second inner light incident surface 321 and the second outer light incident surface 322 deviates from the optical axis 611, and the second light incident intersection point is located between the optical axis 611 and the second outer light incident surface 322.

[0069] Taking the optical axis 611 as a reference, the distance from the optical axis 611 to the inner edge of the second light emitting surface 33 is greater than the distance from the optical axis 611 to the outer edge of the second light emitting surface 33 .

[0070] Preferably, the structure of the second annular lens 3 is completely the same as that of the first annular lens 2 , except that the second annular lens 3 is close to the outer edge of the lens cover 1 , and the first annular lens 2 is close to the inner edge of the lens cover 1 .

[0071] The second annular lens 3 is added to the periphery of the first annular lens 2 to increase the light output at the outer edge of the lens module so as to make the light output of the lamp uniform. Preferably, the combination of the second annular lens 3 and the first annular lens 2 is suitable for small-sized lamps.

[0072] In some embodiments, the lens module can also be used as follows Figure 1 , Figures 4 to 8 The structure shown, see Figure 1 , Figures 4 to 8 A plurality of compensation lenses 4 are also formed on the lower surface of the lens cover 1 , and the plurality of compensation lenses 4 are located between the first annular lens 2 and the second annular lens 3 .

[0073] The compensation lens 4 has a third accommodating space, in which a light emitting unit 61 is arranged, an inner wall surface of the third accommodating space forms a third light incident surface, and an outer wall surface of the compensation lens 4 forms a third light emitting surface.

[0074] The compensation lens 4 is a strip-shaped structure, one end of which is connected to the first annular lens 2 , and the other end of which is connected to the second annular lens 3 .

[0075] Since the second annular lens 3 and the first annular lens 2 are arranged radially at intervals and have no overlapping parts, there may be a part where no light is emitted between the first annular lens 2 and the second annular lens 3, resulting in a dark area. A plurality of compensation lenses 4 are added between the first annular lens 2 and the second annular lens 3 to compensate for the light distribution between the first annular lens 2 and the second annular lens 3 to avoid the dark area problem.

[0076] In some embodiments, the first annular lens 2 and the second annular lens 3 may be formed as follows: Figure 1 , Figure 4 and Figure 5 The structure shown, see Figure 1 , Figure 4 and Figure 5 The first annular lens 2 includes a plurality of first sub-lenses 24 spaced apart along the circumferential direction, and the second annular lens 3 includes a plurality of second sub-lenses 34 spaced apart along the circumferential direction; the second sub-lenses 34 correspond one-to-one with the first sub-lens 24 in the radial direction, and the above-mentioned compensation lens 4 is provided between the end of the second sub-lens 34 and the end of the first sub-lens 24.

[0077] The first annular lens 2 is designed as a multi-segment first sub-lens 24, and the second annular lens 3 is designed as a multi-segment second sub-lens 34. Compared with the overall annular structure, the segmented sub-lenses are more easily adapted to the light source board 6 of the light emitting unit 61.

[0078] Specifically, in order to simplify the structure and manufacturing process of the light source plate 6, the light source plate 6 is generally a ring plate structure formed by splicing multiple arc plates, such as Figure 5As shown. The arc-shaped light source plate 6 is easier to manufacture than the ring-shaped one, and is assembled with the substrate 5 for fixing the light source plate 6. In order to adapt to the structure of the light source plate 6, the first annular lens 2 and the second annular lens 3 in this embodiment are designed to be segmented.

[0079] In addition, in order to solve the problem that the end of the sub-lens has no corresponding light-emitting unit 61, the above-mentioned compensation lens 4 is arranged between the end of the second sub-lens 34 and the end of the first sub-lens 24 to avoid the problem of dark areas at the ends of the sub-lenses.

[0080] See also Figures 4 to 8 Based on the same inventive concept, the embodiment of the present application also provides a lamp, comprising a substrate 5, a light source board 6 and the above-mentioned lens module. The light source board 6 is fixedly arranged on the substrate 5; a plurality of light-emitting units 61 are arranged on the light source board 6; and the lens module cover is arranged below the light source board 6.

[0081] Both the light source board 6 and the lens module are annular structures. After the lens module cover is arranged below the light source board 6, they are fixed together on the substrate 5. It should be noted that the "below" defined here is defined by the light emission direction of the light emitting unit 61. Generally, for ceiling lamps, the lens module is located below the light emitting unit 61, and the light emitting unit 61 emits light downward. Of course, for side-emitting lamps such as wall-mounted lamps and wall lamps, the "below" here refers to the outer surface of the lens cover 1. Therefore, the "below" defined in this embodiment is not "below" in the vertical direction, but is based on the emission direction of the light. The definition of "below" is only for the convenience of describing the positional relationship between the substrate 5, the light source board 6 and the lens module.

[0082] A plurality of light-emitting units 61 are provided on the light source plate 6. If the lens module only has the first annular lens 2, the plurality of light-emitting units 61 can at least form a circle and are correspondingly located in the first accommodation space 21. If the lens module has the first annular lens 2 and the second annular lens 3, the plurality of light-emitting units 61 can at least form two circles, one of which is correspondingly located in the first accommodation space 21 and the other is correspondingly located in the second accommodation space 31. If the lens module also has a compensation lens 4, at least one light-emitting unit 61 is located in the third accommodation space of the compensation lens 4.

[0083] The lamp provided by the utility model adopts the above-mentioned lens module, so that the light-emitting unit 61 in the first accommodating space 21 is biased toward the first inner light incident surface 221, and the upper half of the first inner light incident surface 221 is close to the light-emitting unit 61, so that the first inner light incident surface 221 as a whole receives a large amount of light, and more light can pass through the first inner light incident surface 221 (especially the upper half of the first inner light incident surface 221) and the first light emitting surface 23 to illuminate the middle part of the lens cover 1, thereby avoiding the occurrence of a dark area in the middle part of the lamp and ensuring that the overall light output of the lamp is uniform.

[0084] In some embodiments, the lens cover 1 and the light source plate 6 may be connected by Figure 1 and Figure 3 In the structure shown, the inner and outer edges of the lens cover 1 are respectively provided with a plurality of hooks 11 , and the hooks 11 abut against the upper surface of the light source board 6 .

[0085] The lens cover 1 is disposed below the light source board 6 , and the hook 11 abuts against the light source board 6 in the up and down directions to limit the position, thereby ensuring that the lens cover 1 and the light source board 6 are firmly connected and do not shake in the up and down directions.

[0086] In addition, after the lens cover 1 and the light source board 6 are assembled, they are also fastened to the base plate 5 by bolts.

[0087] In some embodiments, the above-mentioned lamp can also be used as follows Figure 4 and Figure 5 The structure shown, see Figure 4 and Figure 5 The substrate 5 is provided with an annular boss 51 protruding downward, and the light source board 6 and the lens cover 1 are fixed on the annular boss 51; the lamp also includes a drive box 7, which is fixedly arranged on the substrate 5 and located in the annular inner cavity of the annular boss 51. It should be noted that a lamp cover is also arranged below the lens module and the drive box 7.

[0088] The driving box 7 is arranged in the inner cavity of the annular boss 51, that is, in the middle hollow part of the lens module, so that the driving box 7 is integrated in the middle of the lens module, which can reduce the overall occupied space of the lamp and optimize its layout.

[0089] The annular boss 51 protrudes downward and is used to fix the light source board 6 and the lens module so that the lower surface of the lens module is roughly coplanar with the lower surface of the driving box 7, or the lower surface of the lens module is slightly higher than the lower surface of the driving box 7 to avoid the driving box 7 blocking the light and affecting the light output of the lamp.

[0090] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lens module, characterized in that: It comprises a lens cover (1) with an annular structure, and a first annular lens (2) formed on the lower surface of the lens cover (1) and protruding downward; The first annular lens (2) has a first accommodating space (21) for accommodating a light-emitting unit (61); the inner wall of the first accommodating space (21) forms a first light incident surface (22); and the outer surface of the first annular lens (2) forms a first light emitting surface (23); The first light incident surface (22) comprises a first inner light incident surface (221) and a first outer light incident surface (222), wherein the first inner light incident surface (221) faces the middle portion of the lens cover (1), and the first outer light incident surface (222) faces the outer edge portion of the lens cover (1); wherein, taking the optical axis (611) of the light emitting unit (61) as a reference, a first light incident intersection point between the first inner light incident surface (221) and the first outer light incident surface (222) deviates from the optical axis (611), and the first light incident intersection point is located between the optical axis (611) and the first outer light incident surface (222).

2. The lens module according to claim 1, characterized in that: Taking the optical axis (611) as a reference, the distance from the optical axis (611) to the inner edge of the first light-emitting surface (23) is greater than the distance from the optical axis (611) to the outer edge of the first light-emitting surface (23).

3. The lens module according to claim 2, characterized in that: The lens module further comprises a second annular lens (3) formed on the lower surface of the lens cover (1) and protruding downward, wherein the second annular lens (3) is located radially outside the first annular lens (2); The second annular lens (3) has a second accommodating space (31) for accommodating the light-emitting unit (61); the inner wall of the second accommodating space (31) forms a second light incident surface (32); the second light incident surface (32) is symmetrically arranged with the optical axis (611) as a reference; The outer surface of the second annular lens (3) forms a second light emitting surface (33); the second light emitting surface (33) is symmetrically arranged with respect to the optical axis (611) as a reference.

4. The lens module according to claim 2, characterized in that: The lens module further comprises a second annular lens (3) formed on the lower surface of the lens cover (1) and protruding downward, wherein the second annular lens (3) is located radially outside the first annular lens (2); The second annular lens (3) has a second accommodating space (31) for accommodating the light-emitting unit (61); the inner wall of the second accommodating space (31) forms a second light incident surface (32); and the outer surface of the second annular lens (3) forms a second light emitting surface (33); The second light incident surface (32) comprises a second inner light incident surface (321) and a second outer light incident surface (322), wherein the second inner light incident surface (321) faces the middle portion of the lens cover (1), and the second outer light incident surface (322) faces the outer edge portion of the lens cover (1); wherein, with the optical axis (611) as a reference, a second light incident intersection point between the second inner light incident surface (321) and the second outer light incident surface (322) deviates from the optical axis (611), and the second light incident intersection point is located between the optical axis (611) and the second outer light incident surface (322).

5. The lens module according to claim 4, characterized in that: Taking the optical axis (611) as a reference, the distance from the optical axis (611) to the inner edge of the second light emitting surface (33) is greater than the distance from the optical axis (611) to the outer edge of the second light emitting surface (33).

6. The lens module according to claim 3 or 5, characterized in that: A plurality of compensation lenses (4) are also formed on the lower surface of the lens cover (1), and the plurality of compensation lenses (4) are located between the first annular lens (2) and the second annular lens (3).

7. The lens module according to claim 6, wherein: The first annular lens (2) comprises a plurality of first sub-lenses (24) spaced apart in the circumferential direction, and the second annular lens (3) comprises a plurality of second sub-lenses (34) spaced apart in the circumferential direction; The second sub-lens (34) corresponds to the first sub-lens (24) in a radial direction, and the compensation lens (4) is provided between the end of the second sub-lens (34) and the end of the first sub-lens (24).

8. A lamp, characterized in that: include: base(5); The light source board (6) is an annular structure and is fixedly arranged on the substrate (5); the light source board (6) is provided with a plurality of light-emitting units (61); and The lens module described in any one of claims 1 to 7 is covered below the light source panel (6).

9. The lamp according to claim 8, characterized in that The inner and outer edges of the lens cover (1) are respectively provided with a plurality of hooks (11), and the hooks (11) abut against the upper surface of the light source plate (6).

10. The lamp according to claim 8, characterized in that The base plate (5) is provided with an annular boss (51) protruding downwards, and the light source plate (6) and the lens cover (1) are fixed on the annular boss (51); The lamp further comprises a driving box (7), wherein the driving box (7) is fixedly arranged on the base plate (5) and is located in the annular inner cavity of the annular boss (51).

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