Lens module and spotlight

Abstract

The utility model discloses a lens module which comprises a panel and a plurality of condensing lenses which are connected to the panel and arranged in an array mode, each condensing lens is in a circular truncated cone shape and comprises a first end located on the lower portion and a second end located on the upper portion, the second ends are arranged on the panel, and the first ends are arranged below the panel; a first concave cavity used for covering the light source is formed in the end face of the first end in a concave mode in the direction of the second end, the bottom face of the first concave cavity is a first convex spherical face protruding towards the opening end of the first concave cavity, a second concave cavity is formed in the end face of the second end in the direction of the first end in a concave mode, and the bottom face of the second concave cavity is a second convex spherical face protruding towards the opening end of the second concave cavity. A plurality of protrusions and a plurality of positioning columns are distributed on the end face of the first end, the protrusions are arranged at intervals, and the lower end faces of the positioning columns protrude out of the lower end faces of the protrusions to be in positioning connection with the circuit board. The first convex spherical surface and the second convex spherical surface are arranged on the condensing lens, so that the light is more focused, the utilization rate of the light is greatly improved, and the size is smaller.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lamp field especially relates to a lens module and spotlight. BACKGROUND

[0002] With the development of manufacturing technology and semiconductor technology, LED light source is increasingly becoming the substitute of traditional light source because of its low power consumption and high brightness, such as being applied in LED video and television lamps, LED video and television lamps are a kind of lamps used for lighting and achieving certain light effects in advertisement and video shooting.

[0003] The radiation angle of LED light source is large due to its inherent characteristics, which is easy to diffuse, so it is necessary to condense light when using LED light source, the existing small-angle mixed light condensing lens has too large size, which is not conducive to the lightweight and small design of product, the light loss is serious, and the utilization rate is not high. SUMMARY

[0004] The utility model discloses a lens module and spotlight, to solve the problem of the size of the condensing lens in prior art, the utilization rate of light is not high.

[0005] In order to realize the above-mentioned purpose, the utility model provides a kind of lens module, including panel and the array arrangement of multiple condensing lenses connected on the panel, the condensing lens is circular truncated cone and includes first end in lower part and second end in upper part, the size of the first end end face is less than the size of the second end end face, the second end is located on the panel and the first end is located below the panel;The first end end face is recessed with first recess cavity for covering light source in the direction of the second end, the bottom surface of the first recess cavity is first convex spherical surface that protrudes to the opening end of the first recess cavity, the second end end face is recessed with second recess cavity in the direction of the first end, the bottom surface of the second recess cavity is second convex spherical surface that protrudes to the opening end of the second recess cavity;A plurality of convex parts and a plurality of positioning columns are also distributed on the first end end face, a plurality of the convex parts are arranged at intervals and a plurality of the convex parts are used to be pasted on the circuit board with the light source mounted, the lower end surface of the positioning column protrudes from the lower end surface of the convex part to be positioned and connected with the circuit board.

[0006] Preferably, the second end end face is further provided with convex ring part that protrudes upward, the convex ring part covers the second end end face, the outer periphery of the second end further extends outwardly with edge part, and the edge part is connected with the panel.

[0007] Preferably, the upper surface of the second convex spherical surface and the convex ring part forms the light exit surface of the condensing lens, the condensing lens is symmetrically arranged along its optical axis, and the included angle between the light exit light ray of the condensing lens and the optical axis is greater than or equal to 0 degrees and less than or equal to 18 degrees.

[0008] Preferably, the convex ring part is provided with a first frosted structure, the second convex spherical surface is provided with a second frosted structure, and the top of the second convex spherical surface is lower than the upper end surface of the convex ring part.

[0009] Preferably, the convex parts are four and are uniformly arranged along the first end surface, the convex parts are arc-shaped strips, and heat dissipation gaps are formed between adjacent two convex parts.

[0010] Preferably, the positioning columns are two and are symmetrically arranged on the opposite convex parts, the positioning columns are arranged on the outer sides of the corresponding convex parts, and the positioning columns partially protrude outward from the end surface of the first end.

[0011] Preferably, the panel is rectangular, four side frames are arranged around the edges of the panel, mounting columns are further arranged on the panel, the mounting columns are arranged away from the condenser lenses, mounting holes are arranged in the mounting columns and extend through the panel.

[0012] Preferably, the side wall of the first cavity is an arc-shaped structure, and the opening end of the first cavity is a horn shape.

[0013] Preferably, the lens module is integrally formed.

[0014] The utility model also provides a spotlight, the spotlight is formed by splicing a plurality of above-mentioned lens modules.

[0015] Compared with the prior art, the utility model discloses a first convex spherical surface and a second convex spherical surface are arranged on the condenser lens to make light more focused, greatly improve the utilization of light and the size is small, in addition, the utility model discloses embodiment is provided with a plurality of convex parts and a plurality of positioning columns on the first end surface of each condenser lens to install each condenser lens on the circuit board, guarantees that the lens module is better connected with the circuit board, and the design is ingenious. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the perspective structural drawing of the lens module of the utility model embodiment.

[0017] Figure 2 It is the overhead structure drawing of the lens module of the utility model embodiment.

[0018] Figure 3 It is the perspective structural drawing of the condenser lens in the utility model embodiment.

[0019] Figure 4 It is the overhead structure drawing of the condenser lens in the utility model embodiment.

[0020] Figure 5 It is the side view structure drawing of the condenser lens in the utility model embodiment.

[0021] Figure 6 This is a top-view structural diagram of the focusing lens in an embodiment of this utility model.

[0022] Figure 7 This is a cross-sectional view of the condensing lens in an embodiment of the present invention. At this point, the first frosted structure and the second frosted structure have not yet been provided on the condensing lens. Detailed Implementation

[0023] To explain in detail the technical content, structural features, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0024] like Figures 1 to 7 As shown, this embodiment of the present invention provides a lens module, including a panel 100 and a plurality of condensing lenses 10 arranged in an array connected to the panel 100. The condensing lens 10 is frustoconical and includes a first end 11 located at the bottom and a second end 12 located at the top. The size of the end face of the first end 11 is smaller than the size of the end face of the second end 12. The second end 12 is disposed on the panel 100 and the first end 11 is disposed below the panel 100. The end face of the first end 11 is recessed in the direction of the second end 12 to form a first cavity for covering the light source. 2. The bottom surface of the first cavity 2 is a first convex spherical surface 21 that protrudes towards the opening end of the first cavity 2. The end face of the second end 12 is recessed towards the first end 11 to form a second cavity 3. The bottom surface of the second cavity 3 is a second convex spherical surface 31 that protrudes towards the opening end of the second cavity 3. Several protrusions 6 and several positioning posts 7 are also distributed on the end face of the first end 11. Several protrusions 6 are spaced apart and several protrusions 6 are used to be pasted onto the circuit board on which the light source is installed. The lower end face of the positioning post 7 protrudes from the lower end face of the protrusion 6 to be positioned and connected with the circuit board.

[0025] Specifically, the condensing lens 10 and the panel 100 are made of PC plastic, which has good light transmittance and is relatively light. Of course, the condensing lens 10 can also be made of other materials such as acrylic. The light source can be an LED light source, and the LED light sources are arranged in the first concave cavity 2 array on the circuit board where they are located. The LED light sources are respectively set in each first concave cavity 2. Specifically, there can be sixteen condensing lenses 10 on the panel 100, four in each row, and four rows are aligned. The light emitted by the LED light source is transmitted through the condensing lens 10 and emitted from the second end 12. The design of the first convex spherical surface 21 and the second convex spherical surface 31 can make the light more focused, greatly improving the light utilization rate and the size is small. In addition, the circuit board is provided with positioning holes that cooperate with the positioning post 7. By embedding the positioning post 7 in the positioning hole, each condensing lens 10 is positioned on the circuit board, ensuring better positioning and connection between the lens module and the circuit board.

[0026] The utility model discloses an embodiment through setting up first convex spherical surface 21 and second convex spherical surface 31 on condensing lens 10 makes light more focus, greatly improves the utilization of light and the size is smaller, in addition, the utility model discloses an embodiment through being equipped with a plurality of convex parts 6 and a plurality of positioning column 7 on the first end 11 end face of every condensing lens 10 to install every condensing lens 10 on the circuit board, guarantees that lens module and circuit board are better connected, and the design is ingenious.

[0027] In the embodiment of the utility model, as shown in Figures 3 to 7 The second end 12 end face is also provided with a convex ring part 4 protruding upward, the convex ring part 4 covers the second end 12 end face, the second end 12 outer periphery further extends outwardly with a rim part 5, the rim part 5 is connected with the panel 100, specifically, the second convex spherical surface 31 of each condensing lens 10 and the upper surface of the convex ring part 4 form the light exit surface of the condensing lens 10, the condensing lens 10 is symmetrically arranged along its optical axis, and the included angle between the light exit light ray of the condensing lens 10 and the optical axis is greater than or equal to 0 degrees and less than or equal to 18 degrees, through the design of the first convex spherical surface 21 and the second convex spherical surface 31, the included angle between the light exit light ray and the optical axis can be even less than or equal to 5 degrees, the upper surface of the convex ring part 4 is flush or substantially flush with the upper surface of the panel 100, so that the light exit surface of each condensing lens is flush to ensure consistent light exit, the setting of the rim part 5 facilitates the connection between the condensing lens 10 and the panel 100, and avoids affecting the light exit surface, and the design is ingenious.

[0028] In the embodiment of the utility model, as shown in Figure 3 , Figure 4 and Figure 7 The first haze structure 41 is arranged on the convex ring part 4, the second haze structure 32 is arranged on the second convex spherical surface 31, and the top of the second convex spherical surface 31 is lower than the upper end surface of the convex ring part 4. Specifically, the first haze structure 41 and the second haze structure 32 are both composed of multiple groups of Fermat spiral dots, so that the light exit surface produces diffuse reflection, the light exit is more uniform, the first haze structure 41 and the second haze structure 32 can be different, the specific structures of the first haze structure 41 and the second haze structure 32 can be selected according to actual needs, and in addition, the first haze structure 41 is arranged on the convex ring part 4 protruding upward, and the arrangement is more convenient.

[0029] In the embodiment of the utility model, the convex part 6 is four and is uniformly arranged along the first end 11 end face, the convex part 6 is an arc-shaped strip, and a heat dissipation gap 8 is formed between the adjacent two convex parts 6. Specifically, the lower end surface of the convex part 6 is a plane to facilitate pasting with the circuit board, and the heat dissipation gap 8 is formed between the adjacent two convex parts 6 arranged at intervals to facilitate heat dissipation of the light source, and the design is ingenious.

[0030] In the embodiment of the utility model, two positioning columns 7 are symmetrically arranged on the opposite two convex parts 6, and the positioning column 7 is arranged on the outside of the corresponding convex part 6 and partially protrudes outward from the end face of the first end 11. Specifically, by arranging the positioning column 7 on the convex part 6, the compactness of the condenser lens 10 structure is facilitated, and in addition, the positioning column 7 partially protrudes outward from the end face of the first end 11, effectively ensuring the stability of the condenser lens 10.

[0031] In the embodiment of the utility model, the outer diameter of the convex ring part 4 is greater than or equal to 38.75 mm and less than or equal to 39.25 mm, the edge part 5 is annular, and the outer diameter of the edge part 5 is greater than or equal to 41.75 mm and less than or equal to 42.25 mm. Specifically, as shown in Figure 4 The outer diameter of the convex ring part 4 is the first outer diameter D1, the first outer diameter D1 is preferably 39 mm, the outer diameter of the edge part 5 is the second outer diameter D2, and the second outer diameter D2 is preferably 42 mm.

[0032] In the embodiment of the utility model, the thickness T of the edge part 5 is greater than or equal to 1.6 mm and less than or equal to 2.1 mm, the distance between the lower surface of the edge part 5 and the lower end face of the convex part 6 is greater than or equal to 21.45 mm and less than or equal to 21.95 mm, the distance between the upper surface of the convex ring part 4 and the lower end face of the convex part 6 is greater than or equal to 24.04 mm and less than or equal to 24.54 mm, the diameter D3 of the positioning column 7 is greater than or equal to 1.75 mm and less than or equal to 2.25 mm, and the distance between the center axes of the two positioning columns 7 is greater than or equal to 13.25 mm and less than or equal to 13.75 mm. Specifically, as shown in Figures 5 to 6 The thickness T of the edge part 5 is preferably 1.85 mm, the distance between the upper surface of the convex ring part 4 and the lower end face of the convex part 6 is the first distance L1, the first distance L1 is preferably 24.29 mm, the distance between the lower surface of the edge part 5 and the lower end face of the convex part 6 is the second distance L2, the second distance L2 is preferably 21.7 mm, the diameter D3 of the positioning column 7 is preferably 2 mm, the distance between the center axes of the two positioning columns 7 is the third distance L3, and the third distance L3 is preferably 13.5 mm.

[0033] In the embodiment of the utility model, the side wall 22 of the first cavity 2 is arc-shaped and the opening end of the first cavity 2 is trumpet-shaped. Specifically, as shown in Figure 7 The opening end of the first cavity 2 is designed to be trumpet-shaped, so that the installation position of the light source can be increased, and the installation is more convenient.

[0034] In the embodiment of the utility model, as shown in Figures 1 to 2As shown, the panel 100 is rectangular, and the edges of the panel 100 are surrounded by four frames 101, and the panel 100 is further provided with mounting posts 102, the mounting posts 102 are arranged away from the condensing lens 10, the mounting posts 102 are provided with penetrating mounting holes 1021, and the mounting holes 1021 extend and penetrate the panel 100. Specifically, the side length B1 of the panel can be 208 mm, the distance B2 between the optical axes of any two adjacent condensing lenses can be 52 mm, the panel 100 is provided with five mounting posts 102, and the five mounting posts 102 are uniformly arranged to further lock and fix the panel 100 with the circuit board.

[0035] In the embodiment of the utility model, the lens module is integrally formed. The panel 100, the frame 101 and the plurality of condensing lenses 10 are integrally formed, which can greatly save the assembly time, has high completeness, good uniformity, good stability, high condensing property and ingenious design.

[0036] The utility model discloses an embodiment further provides a spotlight, and the spotlight is formed by splicing the above lens module, thereby obtaining the spotlight of required size and required brightness. The utility model discloses an embodiment spotlight includes a plurality of lens modules, and each lens module makes light more focused by setting the first convex spherical surface 21 and the second convex spherical surface 31 on the condensing lens 10, greatly improves the utilization of light and the size is smaller, in addition, the utility model discloses an embodiment is provided with a plurality of convex parts 6 and a plurality of positioning columns 7 on the first end 11 end face of each condensing lens 10 to install each condensing lens 10 on the circuit board, guarantees that the lens module is better connected with the circuit board, and the design is ingenious.

[0037] The above disclosed is only the preferred embodiment of the utility model, of course, can not be limited by this to the scope of the utility model right, therefore the equivalent change made according to the utility model application patent range still belongs to the range covered by the utility model.

Claims

1. A lens module, characterized by, The lens module comprises a panel and a plurality of condensing lenses arranged in an array on the panel, the condensing lenses are frustoconical and comprise a first end at a lower portion and a second end at an upper portion, a size of an end face of the first end is smaller than a size of an end face of the second end, the second end is arranged on the panel and the first end is arranged below the panel; the end face of the first end is recessed in a first concave cavity for covering a light source in a direction of the second end, a bottom face of the first concave cavity is a first convex spherical surface protruding towards an opening end of the first concave cavity, the end face of the second end is recessed in a second concave cavity in a direction of the first end, a bottom face of the second concave cavity is a second convex spherical surface protruding towards an opening end of the second concave cavity; a plurality of convex portions and a plurality of positioning columns are arranged on the end face of the first end, the plurality of convex portions are arranged at intervals and are used for being attached to a circuit board on which the light source is arranged, lower end faces of the positioning columns protrude from lower end faces of the convex portions to be connected to the circuit board.

2. The lens module of claim 1, wherein, an upwardly protruding convex ring portion is arranged on the end face of the second end, the convex ring portion covers the end face of the second end, an edge portion is arranged outwardly from an outer periphery of the second end, and the edge portion is connected to the panel.

3. The lens module of claim 2, wherein, upper surfaces of the second convex spherical surface and the convex ring portion form a light exit surface of the condensing lens, the condensing lens is arranged symmetrically along an optical axis, and an included angle between a light exit light ray of the condensing lens and the optical axis is greater than or equal to 0 degrees and less than or equal to 18 degrees.

4. The lens module of claim 3, wherein, a first frosting structure is arranged on the convex ring portion, a second frosting structure is arranged on the second convex spherical surface, and a top portion of the second convex spherical surface is lower than an upper end face of the convex ring portion.

5. The lens module of claim 1, wherein, the plurality of convex portions are four and are arranged uniformly along the end face of the first end, the convex portions are arc-shaped strips, and heat dissipation gaps are formed between adjacent two convex portions.

6. The lens module of claim 5, wherein, the plurality of positioning columns are two and are arranged symmetrically on opposite two convex portions, the positioning columns are arranged on outer sides of the corresponding convex portions, and the positioning columns partially protrude outwardly from the end face of the first end.

7. The lens module of claim 1, wherein, the panel is rectangular, four edge frames are arranged around edges of the panel, a mounting column is arranged on the panel, the mounting column is arranged away from the condensing lenses, a mounting hole is arranged in the mounting column and extends through the panel.

8. The lens module of claim 1, wherein, a side wall of the first concave cavity is arc-shaped, and an opening end of the first concave cavity is trumpet-shaped.

9. The lens module of claim 1, wherein, the lens module is integrally formed.

10. A spotlight, characterized by the spotlight is formed by splicing a plurality of lens modules as claimed in any one of claims 1 to 9.

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