Condenser lens
By designing a frustum-shaped focusing lens and adopting a convex spherical and frosted surface structure, the problems of large LED light source lens size and low light utilization are solved, achieving efficient light focusing and stable connection, which is suitable for LED film and television lighting fixtures.
Patent Information
- Application Number
- CN202423095566.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Existing LED light sources have large focusing lenses, low light utilization, and are not conducive to lightweight and compact product design.
Design a frustum-shaped focusing lens, comprising a first convex spherical surface and a second convex spherical surface, with a convex ring portion and an edge portion, to optimize the light focusing path, and to set a frosted structure on the light-emitting surface to improve light utilization and connection stability.
It achieves efficient light focusing, improves light utilization, has a small lens size, is stably connected to the mounting panel, and has good light output.
Smart Images
Figure CN223855462U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a lamp field especially relates to a condensing lens. 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 the product, the light loss is serious, and the utilization rate is not high. SUMMARY
[0004] The utility model discloses a condensing lens to solve the problem of large size of condensing lens and low light utilization rate in the prior art.
[0005] In order to achieve the above-mentioned purpose, the utility model provides a condensing lens, the condensing lens is in the shape of a circular truncated cone and includes a first end at the lower part and a second end at the upper part, the size of the first end face is smaller than the size of the second end face, the first end face is recessed in the direction of the second end to form a first recessed cavity for covering the light source, the bottom surface of the first recessed cavity is a first convex spherical surface protruding towards the opening end of the first recessed cavity, the second end face is recessed in the direction of the first end to form a second recessed cavity, the bottom surface of the second recessed cavity is a second convex spherical surface protruding towards the opening end of the second recessed cavity, a convex ring part protruding upwards is further arranged on the second end face, the convex ring part covers the second end face, and an edge part is further extended outward from the outer periphery of the second end.
[0006] Preferably, the second convex spherical surface and the upper surface of the convex ring part form 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.
[0007] Preferably, a first frosting structure is arranged on the convex ring part, a second frosting structure is arranged on the second convex spherical surface, and the top of the second convex spherical surface is lower than the upper end surface of the convex ring part.
[0008] Preferably, a plurality of convex parts and a plurality of positioning columns are further arranged on the first end face, the plurality of convex parts are arranged at intervals and used for being pasted on the circuit board on which the light source is mounted, and 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.
[0009] Preferably, the four protrusions are arranged uniformly along the first end face, and the protrusions are arc-shaped strips, and a heat dissipation gap is formed between two adjacent protrusions.
[0010] Preferably, the two positioning columns are symmetrically arranged on the opposite protrusions, and the positioning columns are arranged on the outer side of the corresponding protrusions and partially protrude outward from the end face of the first end.
[0011] Preferably, the outer diameter of the convex ring portion is greater than or equal to 38.75 mm and less than or equal to 39.25 mm, the edge portion is annular, and the outer diameter of the edge portion is greater than or equal to 41.75 mm and less than or equal to 42.25 mm.
[0012] Preferably, the thickness of the edge portion 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 portion and the lower end face of the protrusion 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 portion and the lower end face of the protrusion is greater than or equal to 24.04 mm and less than or equal to 24.54 mm, the diameter of the positioning column 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 is greater than or equal to 13.25 mm and less than or equal to 13.75 mm.
[0013] Preferably, the side wall of the first recess is arc-shaped, and the opening end of the first recess is trumpet-shaped.
[0014] Preferably, the condenser lens is integrally formed.
[0015] Compared with the prior art, the first convex spherical surface and the second convex spherical surface are arranged on the condenser lens to make the light more focused, greatly improve the utilization rate of light and have a smaller size, and in addition, the edge portion is arranged to facilitate the connection between the condenser lens and the panel on which the condenser lens is installed, thereby avoiding affecting the light emitting surface and achieving good light emitting effect. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 FIG. 1 is a perspective view of a condenser lens according to an embodiment of the present application.
[0017] Figure 2 FIG. 4 is a top view of the condenser lens according to the embodiment of the present application.
[0018] Figure 3 FIG. 5 is a side view of the condenser lens according to the embodiment of the present application.
[0019] Figure 4The utility model discloses an embodiment of the utility model's light -converging lens's elevation structure drawing.
[0020] Figure 5 The utility model discloses an embodiment of the utility model's light -converging lens's section structure drawing, at this time, the first fog surface structure and the second fog surface structure have not been set up on the light -converging lens. SPECIFIC EMBODIMENTS
[0021] In order to explain the technical content, structural features and effects of the utility model in detail, the following will be described in detail in combination with the embodiments and the drawings.
[0022] As Figures 1 to 5 The utility model discloses an embodiment of the utility model provides a light -converging lens 10, light -converging lens 10 is circular truncated cone and includes the first end 11 of lower part and the second end 12 of upper part, the size of first end 11 end face is less than the size of second end 12 end face, first end 11 end face recesses to the first recessed cavity 2 of second end 12 direction for covering light source, the bottom surface of first recessed cavity 2 is the first convex spherical surface 21 that protrudes to the opening end of first recessed cavity 2, the bottom surface of second recessed cavity 3 is the second convex spherical surface 31 that protrudes to the opening end of second recessed cavity 3, second end 12 end face still is equipped with the convex ring portion 4 that protrudes upwards, and convex ring portion 4 covers on second end 12 end face, and the periphery of second end 12 still extends the rim 5 outward.
[0023] Specifically, the upper surface of the second convex spherical surface 31 and the convex ring portion 4 forms the light exit surface of the light -converging lens 10, the light -converging lens 10 is symmetrically arranged along its optical axis, and the included angle between the light exit light ray of the light -converging lens 10 and the optical axis is greater than or equal to 0 degrees and less than or equal to 18 degrees, the material of the light -converging lens 10 is PC plastic, which has good light transmittance and is relatively light, of course, the light -converging lens 10 can also adopt other materials such as acrylic, the light source can be an LED light source, the LED light source is arranged in the first recessed cavity 2, the light emitted by the LED light source is transmitted through the light -converging lens 10 and emitted from the light exit surface, the design of the first convex spherical surface 21 and the second convex spherical surface 31 can make the light more focused and can make the included angle between the light exit light ray and the optical axis be greater than or equal to 0 degrees and less than or equal to 18 degrees, or even less than or equal to 5 degrees, the light focusing property is good, the light utilization rate is greatly improved, and the size is small, in addition, the setting of the rim 5 facilitates the connection between the light -converging lens 10 and the panel on which the light -converging lens 10 is installed, avoids affecting the light exit surface, and the design is ingenious.
[0024] 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 improve the utilization of light and size is smaller, in addition, the utility model discloses an embodiment through setting up edge portion 5 to connect between condensing lens 10 and the panel of installing condensing lens 10 conveniently, avoid the influence to the light emitting surface, and the light emitting effect is good.
[0025] In the embodiment of the utility model, as shown in Figures 1 to 3 And Figure 5 The first fog surface structure 41 is arranged on the convex ring part 4, the second fog surface 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 fog surface structure 41 and the second fog surface structure 32 are both composed of a plurality of Fermat spiral dot structures, so that the light emitting surface produces diffuse reflection, and the light emitting is more uniform. The first fog surface structure 41 and the second fog surface structure 32 can be different, and the specific structures of the first fog surface structure 41 and the second fog surface structure 32 can be selected according to actual needs. In addition, the first fog surface structure 41 is arranged on the convex ring part 4 that protrudes upward, which is more convenient.
[0026] In the embodiment of the utility model, as shown in Figures 3 to 4 The first end 11 end surface also has a plurality of convex parts 6 and a plurality of positioning columns 7, the plurality of convex parts 6 are arranged at intervals and are used for being pasted on the circuit board on which the light source is installed, and the lower end surface of the positioning column 7 protrudes from the lower end surface of the convex part 6 to be positioned and connected with the circuit board. Specifically, the convex part 6 is four and is evenly arranged along the first end 11 end surface, the convex part 6 is an arc-shaped strip, and a heat dissipation gap 8 is formed between the adjacent two convex parts 6. 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, which is ingenious.
[0027] Further, as shown in Figures 3 to 4 The positioning column 7 is two and is symmetrically arranged on the opposite two convex parts 6, the positioning column 7 is arranged on the outer side of the corresponding convex part 6 and partially protrudes outward from the end surface of the first end 11. Specifically, by arranging the positioning column 7 on the convex part 6, the compactness of the condensing lens 10 structure is facilitated, and in addition, the positioning column 7 partially protrudes outward from the end surface of the first end 11, effectively ensuring the stability of the condensing lens 10.
[0028] 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 portion 5 is annular, and the outer diameter of the edge portion 5 is greater than or equal to 41.75 mm and less than or equal to 42.25 mm. Specifically, as shown in Figure 2As shown, the outer diameter of the convex ring part 4 is a first outer diameter D1, the first outer diameter D1 is preferably 39 millimeters, and the outer diameter of the edge part 5 is a second outer diameter D2, the second outer diameter D2 is preferably 42 millimeters.
[0029] In the embodiment of the utility model, the thickness T of the edge part 5 is greater than or equal to 1.6 millimeters and less than or equal to 2.1 millimeters, the distance between the lower surface of the edge part 5 and the lower end surface of the convex part 6 is greater than or equal to 21.45 millimeters and less than or equal to 21.95 millimeters, the distance between the upper surface of the convex ring part 4 and the lower end surface of the convex part 6 is greater than or equal to 24.04 millimeters and less than or equal to 24.54 millimeters, the diameter D3 of the positioning column 7 is greater than or equal to 1.75 millimeters and less than or equal to 2.25 millimeters, and the distance between the center axes of the two positioning columns 7 is greater than or equal to 13.25 millimeters and less than or equal to 13.75 millimeters. Specifically, as shown in the figure, Figures 3 to 4 As shown, the thickness T of the edge part 5 is preferably 1.85 millimeters, the distance between the upper surface of the convex ring part 4 and the lower end surface of the convex part 6 is a first distance L1, the first distance L1 is preferably 24.29 millimeters, the distance between the lower surface of the edge part 5 and the lower end surface of the convex part 6 is a second distance L2, the second distance L2 is preferably 21.7 millimeters, the diameter D3 of the positioning column 7 is preferably 2 millimeters, the distance between the center axes of the two positioning columns 7 is a third distance L3, and the third distance L3 is preferably 13.5 millimeters.
[0030] In the embodiment of the utility model, the side wall 22 of the first cavity 2 is an arc-shaped structure, and the opening end of the first cavity 2 is in a horn shape. Specifically, by designing the opening end of the first cavity 2 to be in a horn shape, the installation position of the light source can be increased, and installation is more convenient.
[0031] In the embodiment of the utility model, the condenser lens 10 is integrally formed, and processing is convenient.
[0032] The above disclosure is only a preferred embodiment of the utility model, and of course cannot limit the scope of the utility model, so equivalent changes made in the scope of the utility model patent application still belong to the scope covered by the utility model.
Claims
1. A condenser lens characterized by comprising: The light collecting lens is frustum-shaped and comprises a first end in a lower part and a second end in an upper part, a size of an end face of the first end is smaller than a size of an end face of the second end, the end face of the first end is recessed in a direction of the second end with a first recessed cavity for covering a light source, a bottom face of the first recessed cavity is a first convex spherical face protruding towards an opening end of the first recessed cavity, the end face of the second end is recessed in a direction of the first end with a second recessed cavity, a bottom face of the second recessed cavity is a second convex spherical face protruding towards an opening end of the second recessed cavity, the end face of the second end is further provided with a convex ring part protruding upwards, the convex ring part covers the end face of the second end, and an edge part is further extended outwardly from an outer periphery of the second end.
2. The condenser lens of claim 1, wherein The second convex spherical face and an upper face of the convex ring part form a light exit face of the light collecting lens, the light collecting lens is symmetrically arranged along an optical axis, and an included angle between an exit light ray of the light collecting lens and the optical axis is greater than or equal to 0 degrees and less than or equal to 18 degrees.
3. The condenser lens of claim 2, wherein The convex ring part is provided with a first haze structure, the second convex spherical face is provided with a second haze structure, and a top of the second convex spherical face is lower than an upper end face of the convex ring part.
4. The condenser lens of claim 3, wherein The end face of the first end is further provided with a plurality of convex parts and a plurality of positioning columns, the plurality of convex parts are arranged at intervals and used for being pasted to a circuit board on which the light source is mounted, and the lower end face of the positioning column protrudes from the lower end face of the convex part to be positioned and connected with the circuit board.
5. The condenser lens of claim 4, wherein The convex parts are four and uniformly arranged along the end face of the first end, the convex parts are arc-shaped strips, and heat dissipation gaps are formed between adjacent two convex parts.
6. The condenser lens of claim 5, wherein The positioning columns are two and 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 outwardly from the end face of the first end.
7. The condenser lens of claim 6, wherein An outer diameter of the convex ring part is greater than or equal to 38.75 millimeters and less than or equal to 39.25 millimeters, the edge part is annular, and an outer diameter of the edge part is greater than or equal to 41.75 millimeters and less than or equal to 42.25 millimeters.
8. The condenser lens of claim 7, wherein A thickness of the edge part is greater than or equal to 1.6 millimeters and less than or equal to 2.1 millimeters, a distance between the lower face of the edge part and the lower end face of the convex part is greater than or equal to 21.45 millimeters and less than or equal to 21.95 millimeters, a distance between the upper face of the convex ring part and the lower end face of the convex part is greater than or equal to 24.04 millimeters and less than or equal to 24.54 millimeters, a diameter of the positioning column is greater than or equal to 1.75 millimeters and less than or equal to 2.25 millimeters, and a distance between the central axes of the two positioning columns is greater than or equal to 13.25 millimeters and less than or equal to 13.75 millimeters.
9. The condenser lens of claim 1, wherein, A side wall of the first recessed cavity is arc-shaped, and the opening end of the first recessed cavity is trumpet-shaped.
10. The condenser lens of claim 1, wherein The light collecting lens is integrally formed.