CN211372288U - Low-cost LED collimating lens - Google Patents
Low-cost LED collimating lens Download PDFInfo
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- CN211372288U CN211372288U CN202020122881.5U CN202020122881U CN211372288U CN 211372288 U CN211372288 U CN 211372288U CN 202020122881 U CN202020122881 U CN 202020122881U CN 211372288 U CN211372288 U CN 211372288U
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- collimating lens
- led collimating
- lens
- optical cavity
- top surface
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Abstract
The utility model relates to a low-cost LED collimating lens, the bottom surface of which is provided with an inwards concave optical cavity, the optical cavity is symmetrically arranged along the optical axis of the lens and gradually folded inwards in the same step, and the bottom of the optical cavity is raised towards the opening of the optical cavity so as to lead the bottom surface of the optical cavity to be an arc surface; the top surface of the LED collimating lens is vertical to the optical axis of the lens, the middle part of the top surface is provided with an inwards concave material-saving hole, the material-saving holes are symmetrically arranged along the optical axis of the lens and gradually furled inwards, and the bottom surface of the material-saving hole is parallel to the top surface of the LED collimating lens; the side wall of the LED collimating lens is an inward reflecting surface which gradually converges from the top surface to the bottom surface of the LED collimating lens to form an arc shape. The utility model discloses a set up the province material hole of indent on the top surface of LED collimating lens to save the required materials of moulding plastics of province material hole department, realize cost reduction's purpose, and through making save coaxial setting between material hole and the optical cavity, reach and jet out light and still collimate, so, realize taking into account two effects of collimation and low cost.
Description
Technical Field
The utility model relates to a low-cost LED collimating lens.
Background
In the prior art, as shown in document 201110393819.5, an LED collimating lens is a cup-shaped structure, a concave optical cavity is formed on the bottom surface of the cup-shaped structure to accommodate an LED, and the top surface of the cup-shaped structure is perpendicular to the optical axis thereof, which has the following disadvantages: the amount of glue needed for injection molding of the product is large, which results in higher production cost.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an improve the weak point among the prior art, and provide a low-cost LED collimating lens.
Therefore, the bottom surface of the low-cost LED collimating lens is provided with an inwards concave optical cavity, the optical cavity is symmetrically arranged along the optical axis of the lens and gradually folded inwards in the same step, and the bottom of the optical cavity is raised towards the opening of the optical cavity so that the bottom surface of the optical cavity is an arc surface;
the top surface of the LED collimating lens is vertical to the optical axis of the lens, the middle part of the top surface is provided with an inwards concave material-saving hole, the material-saving holes are symmetrically arranged along the optical axis of the lens and gradually furled inwards, and the bottom surface of the material-saving hole is parallel to the top surface of the LED collimating lens;
the side wall of the LED collimating lens is an inward reflecting surface which gradually converges from the top surface to the bottom surface of the LED collimating lens to form an arc shape.
Further, the material saving holes are gradually gathered inwards in the same step.
Further, the opening of the material saving hole is smaller than the opening of the optical cavity.
Further, the area of the bottom surface of the material saving hole is larger than the projection area of the arc surface on the bottom surface.
Further, the top surface of the LED collimating lens is a bead surface; and/or the bottom surface of the material saving hole is a bead surface.
Further, a mounting post is fixed to the outer side of the reflection surface.
Further, the assembling post and the reflecting surface are integrally formed together.
Furthermore, the bottom surface of the assembling column is provided with a threaded mounting hole for matching and locking with an external screw on a mounting position to be assembled.
Has the advantages that:
this embodiment is through setting up the province material hole of indent on LED collimating lens's top surface to save the required materials of moulding plastics of province material hole department, realize cost reduction's purpose, and through making save between material hole and the optical cavity coaxial setting, reach the collimation of penetrating light still, so, realize taking into account two effects of collimation and low cost.
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 shows a schematic structural diagram of an LED collimating lens of the present invention;
fig. 2 shows a cross-sectional view of the LED collimating lens of the present invention;
fig. 3 shows an internal light path diagram of the LED collimating lens of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The overall structure of the LED collimating lens of this embodiment is shown in fig. 1, and its cross-section along L-L is shown in fig. 2.
Referring to fig. 2, the LED collimating lens is a cup-shaped structure, the bottom surface of the LED collimating lens is provided with an inwardly concave optical cavity 1, the optical cavities 1 are symmetrically arranged along the optical axis of the lens and gradually converge inward in the same step, so that the sidewall 11 of the optical cavity is a straight line on the section L-L, and the bottom of the optical cavity 1 protrudes toward the opening of the optical cavity, so that the bottom surface of the optical cavity 1 is an arc surface 12.
The top surface 4 of the LED collimating lens is perpendicular to the optical axis of the lens, the middle part of the LED collimating lens is provided with an inwards concave material-saving hole 2, the material-saving holes 2 are also symmetrically arranged along the optical axis of the lens and gradually furled inwards in the same step, so that the side wall 21 of the material-saving hole presents a straight line on the section F-F, and the bottom surface 22 of the material-saving hole 2 is parallel to the top surface 4.
In terms of size, the opening of the material saving hole 2 is smaller than the opening of the optical cavity 1, and the area of the bottom surface 22 is larger than the projection area of the arc surface 12 on the bottom surface 22.
The side wall of the LED collimating lens is an inward reflecting surface 3, and the reflecting surface 3 gradually converges from the top surface 4 to the bottom surface of the LED collimating lens to form an arc shape.
When the LED lens is used, as shown in FIG. 3, an LED is placed in the optical cavity 1, light rays are emitted from the LED, part of the light rays are emitted from the side wall 11 of the optical cavity, and are refracted to the reflecting surface 3 by the side wall 11 when emitted, and the light rays are reflected out of the top surface 4 by the reflecting surface 3 in a direction parallel to the optical axis of the lens; the other part of the light rays are emitted from the arc surface 12, and the emitted light rays are rectified by the arc surface 12 into light rays parallel to the optical axis direction of the lens and then emitted from the bottom surface 22 of the material saving hole 2.
This embodiment is through setting up the province material hole 2 of indent on LED collimating lens's top surface 4 to save the required material of moulding plastics of province material hole 2 department, realize cost reduction's purpose, and economize the big or small relation in position between material hole 2 and the optical cavity 1 through adjusting, realize that the light of penetrating still collimates, so, realize taking into account two effects of collimation and low cost.
Further, referring to fig. 2, the top surface 4 and the bottom surface 22 are arranged as bead surface a shown in fig. 1 to achieve a uniform light effect.
Preferably, a mounting post 5 as shown in fig. 2 is integrally molded on the outer side of the reflection surface 3, a threaded mounting hole is formed in the bottom surface of the mounting post 5, and the LED collimating lens can be fixed to a mounting position to be mounted through the cooperation of the mounting hole and a screw.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the protection scope of the present application, and although the present application is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application.
Claims (8)
1. A low-cost LED collimating lens, characterized in that:
the bottom surface of the LED collimating lens is provided with an inwards concave optical cavity, the optical cavities are symmetrically arranged along the optical axis of the lens and gradually folded inwards in the same step, and the bottom of the optical cavity is raised towards the opening of the optical cavity so that the bottom surface of the optical cavity is an arc surface;
the top surface of the LED collimating lens is vertical to the optical axis of the lens, the middle part of the top surface is provided with an inwards concave material-saving hole, the material-saving holes are symmetrically arranged along the optical axis of the lens and gradually furled inwards, and the bottom surface of the material-saving hole is parallel to the top surface of the LED collimating lens;
the side wall of the LED collimating lens is an inward reflecting surface, and the reflecting surface gradually folds from the top surface to the bottom surface of the LED collimating lens to form an arc shape.
2. The low cost LED collimating lens of claim 1, wherein: the material saving holes are gradually folded inwards in the same step.
3. The low cost LED collimating lens of claim 1, wherein: the opening of the material saving hole is smaller than the opening of the optical cavity.
4. The low cost LED collimating lens of claim 3, wherein: the area of the bottom surface of the material saving hole is larger than the projection area of the arc surface on the bottom surface.
5. The low cost LED collimating lens of claim 1, wherein: the top surface of the LED collimating lens is a bead surface; and/or the bottom surface of the material saving hole is a bead surface.
6. The low cost LED collimating lens of claim 1, wherein: and an assembling column is fixed on the outer side of the reflecting surface.
7. The low cost LED collimating lens of claim 6, wherein: the assembling column and the reflecting surface are integrally formed together.
8. The low cost LED collimating lens of claim 6, wherein: the bottom surface of the assembling column is provided with a threaded mounting hole to be matched and locked on a mounting position to be assembled with an external screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020122881.5U CN211372288U (en) | 2020-01-17 | 2020-01-17 | Low-cost LED collimating lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020122881.5U CN211372288U (en) | 2020-01-17 | 2020-01-17 | Low-cost LED collimating lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211372288U true CN211372288U (en) | 2020-08-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020122881.5U Active CN211372288U (en) | 2020-01-17 | 2020-01-17 | Low-cost LED collimating lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211372288U (en) |
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2020
- 2020-01-17 CN CN202020122881.5U patent/CN211372288U/en active Active
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