CN211475533U - LED optical fiber light source device based on self-focusing lens - Google Patents
LED optical fiber light source device based on self-focusing lens Download PDFInfo
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- CN211475533U CN211475533U CN201922443854.8U CN201922443854U CN211475533U CN 211475533 U CN211475533 U CN 211475533U CN 201922443854 U CN201922443854 U CN 201922443854U CN 211475533 U CN211475533 U CN 211475533U
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Abstract
The utility model discloses a LED optical fiber light source device based on a self-focusing lens, which comprises a light emitting end, a lamp holder end and an optical fiber; the self-focusing lens is mainly used for replacing a lens commonly used in the conventional LED optical fiber light source device, and the self-focusing lens is combined with the optical fiber light source device, so that a focusing light path and a beam expanding collimation light path at two ends of an optical fiber are greatly simplified, and the stability and the illumination intensity of the light path of the optical fiber light source device are improved; the light is converged on the central surface of the convex surface of the lens through the optical characteristics of the self-focusing lens, so that the structure that the light is focused and transmitted into the optical fiber and is emitted out of the optical fiber in a collimation way can be realized by a simple sleeved structure; the utility model can greatly reduce the processing and mounting precision requirements of the optical fiber and the lens fixing piece, improve the efficiency of light transmission, reduce the loss of light transmission and improve the illumination intensity; just the utility model has the advantages of simple structure, easily installation and dismantlement. The utility model discloses can apply to and shoot the lamp source field at a high speed.
Description
Technical Field
The utility model belongs to the technical field of high-speed shooting lamp source and specifically relates to a LED fiber optic light source device based on self-focusing lens.
Background
The high-intensity LED light source has the advantages of high luminous efficiency, high intensity and long service life, and is widely applied to the field of high-speed photography. In the field of high-speed photography, the total amount of incoming light collected in a picture is low, since the high-speed camera shutter time is short, and it is usually necessary to be able to image clearly within a few microseconds. The illumination of the light source is improved, the light intensity reflected back to the lens from the surface of the object can be improved, and therefore the imaging quality is obviously improved.
Currently, light sources for high-speed photography generally have a large divergence angle, enabling a large space to be illuminated. The larger the divergence, the larger the irradiation area at the same distance; the illumination intensity per unit area is greatly attenuated with the increasing illumination distance. If a deeper and narrower area needs to be illuminated with high intensity, an LED optical fiber light source device is needed. The principle of the LED optical fiber light source device is that light emitted by a high-power LED chip is focused to an optical fiber through a lens. The light is transmitted to the tail end of the optical fiber through the optical fiber, is collimated through the lens and is emitted in parallel, so that a deeper and narrower area is illuminated.
The existing product uses a lens to focus light emitted by a high-power LED chip into an optical fiber for transmission. After the light is transmitted to the tail end of the optical fiber, the light coming out of the optical fiber is expanded and collimated by the lens so as to achieve the illumination effect. The optical structure of focusing and expanding needs higher processing precision so that the distance between the lens and the optical fiber port is just the focal length of the lens. The optical fixing piece is limited by the processing precision of the optical fixing piece and the error in assembly, the distance between the lens and the optical fiber is difficult to guarantee to be the focal length of the lens, so that the light is lost when being conducted to the optical fiber, and the illumination efficiency is reduced.
Disclosure of Invention
In order to solve at least one of the above technical problems, an object of the present invention is to provide a LED fiber light source device based on a self-focusing lens.
The technical scheme adopted by the invention is as follows: the utility model discloses a LED optical fiber light source device based on a self-focusing lens, which is characterized by comprising a light emitting end, a lamp holder end and an optical fiber;
the light emitting end comprises a power supply (1), a light emitting chip (2), a light source shell (3), a first sleeving piece (4), a first self-focusing lens (5) and a first optical fiber fixing piece (6); the power supply (1) is fixed on the inner side of the light source shell (3); the first self-focusing lens (5) is nested in the first sleeve piece (4); the first optical fiber fixing piece (6) is nested in the first sleeving piece (4) and is in butt joint with the first self-focusing lens (5);
the lamp holder end comprises a second optical fiber fixing piece (7), a second sleeving piece (8) and a second self-focusing lens (9); the second self-focusing lens (9) is nested in the second sleeving piece (8);
and two ends of the optical fiber are respectively connected with the first optical fiber fixing piece (6) and the second optical fiber fixing piece (7).
Furthermore, a first small hole is formed in the middle of the first sleeving piece (4), and the diameter of the first small hole is consistent with that of the first self-focusing lens (5).
Further, the first self-focusing lens (5) is a cylinder; the first self-focusing lens (5) is embedded into the first small hole of the first sleeving piece (4) and penetrates through the first sleeving piece (4) to be directly contacted with the light-emitting chip (2).
Further, the first sleeving piece (4) is fixed on the light source shell (3) through screws.
Further, the first fiber fixing member (6) is embedded in the first small hole of the first socket member (4).
Further, the first optical fiber fixing piece (6) is provided with a second small hole, and the optical fiber penetrates through the second small hole to be jointed with the first self-focusing lens (5).
Furthermore, a third small hole is formed in the middle of the second sleeving part (8), and the diameter of the third small hole is consistent with that of the second self-focusing lens (9).
Further, the second self-focusing lens (9) is a cylinder; the second self-focusing lens (9) is inserted into the third small hole of the second sleeve connector (8).
Further, the second fiber fixing member (7) is embedded in a third small hole of the second socket member (8).
Further, the second optical fiber fixing part (7) is provided with a fourth small hole, and the optical fiber penetrates through the fourth small hole to be jointed with the second self-focusing lens (9).
The invention has the beneficial effects that: the utility model combines the self-focusing lens with the optical fiber light source device, can greatly simplify the focusing light path and the beam expanding collimation light path at the two ends of the optical fiber, and simultaneously improves the stability and the illumination intensity of the optical fiber light source device; the light is converged on the central surface of the convex surface of the lens through the optical characteristics of the self-focusing lens, so that the structure that the light is focused and transmitted into the optical fiber and is emitted out of the optical fiber and collimated out can be realized through a simple sleeved structure; the utility model can greatly reduce the processing and mounting precision requirements of the optical fiber and the lens fixing piece, improve the efficiency of light transmission, reduce the loss of light transmission and improve the illumination intensity; just the utility model has the advantages of simple structure, easily installation and dismantlement.
Drawings
FIG. 1 is a structural diagram of an LED fiber light source device based on a self-focusing lens according to the present invention;
fig. 2 is a structural diagram of a light emitting end according to an embodiment of the present invention;
fig. 3 is a structural diagram of a lamp end according to an embodiment of the present invention.
Detailed Description
Referring to fig. 1, a high-intensity LED fiber light source device based on a self-focusing lens includes a light emitting end, a lamp holder end and an optical fiber;
the light emitting end comprises a power supply (1), a light emitting chip (2), a light source shell (3), a first sleeving piece (4), a first self-focusing lens (5) and a first optical fiber fixing piece (6); the power supply (1) is fixed on the inner side of the light source shell (3); the first self-focusing lens (5) is nested in the first sleeve piece (4); the first optical fiber fixing piece (6) is nested in the first sleeving piece (4) and is in butt joint with the first self-focusing lens (5);
the lamp holder end comprises a second optical fiber fixing piece (7), a second sleeving piece (8) and a second self-focusing lens (9); the second self-focusing lens (9) is nested in the second sleeving piece (8);
and two ends of the optical fiber are respectively connected with the first optical fiber fixing piece (6) and the second optical fiber fixing piece (7).
Referring to fig. 2, fig. 2 is a structural diagram of the light emitting end, where the light emitting end includes a power supply (1), a light emitting chip (2), a light source housing (3), a first sleeving part (4), a first self-focusing lens (5), and a first optical fiber fixing part (6);
the power supply (1) is fixed on the inner side of the light source shell (3); the surface on which the light-emitting chip (2) is fixed; the first self-focusing lens (5) is nested in the first sleeve piece (4); the first optical fiber fixing piece (6) is nested in the first sleeving piece (4) and is in butt joint with the first self-focusing lens (5);
a first small hole is formed in the middle of the first sleeving piece (4), and the diameter of the first small hole is consistent with that of the first self-focusing lens (5);
the first self-focusing lens (5) is a cylinder; the first self-focusing lens (5) is embedded into a first small hole of the first sleeving piece (4) and penetrates through the first sleeving piece (4) to be directly contacted with the light-emitting chip (2);
the first sleeving piece (4) is fixed on the light source shell (3) through screws;
the first optical fiber fixing piece (6) is embedded into the first small hole of the first sleeving piece (4);
the first optical fiber fixing piece (6) is provided with a second small hole, and the optical fiber penetrates through the second small hole to be jointed with the first self-focusing lens (5).
Referring to fig. 3, fig. 3 is a structural diagram of the lamp head end, which includes a second optical fiber fixing member (7), a second socket member (8) and a second self-focusing lens (9);
a third small hole is formed in the middle of the second sleeving piece (8), and the diameter of the third small hole is consistent with that of the second self-focusing lens (9);
the second self-focusing lens (9) is a cylinder; the second self-focusing lens (9) is embedded into a third small hole of the second sleeving part (8);
the second optical fiber fixing piece (7) is embedded into a third small hole of the second sleeve connector (8);
the second optical fiber fixing piece (7) is provided with a fourth small hole, and the optical fiber penetrates through the fourth small hole to be jointed with the second self-focusing lens (9).
In the embodiment, the light emitting chip (2) at the light emitting end is tightly attached to the first self-focusing lens (5) at the light emitting end, so that the light loss can be reduced, and the light transmission efficiency can be improved; meanwhile, the center of the first self-focusing lens (5) at the light emitting end is tightly attached to the optical fiber, so that the light loss can be reduced, and the light transmission efficiency is improved. Similarly, the second self-focusing lens (9) is also closely attached to the optical fiber, so that the optical loss can be reduced and the optical transmission efficiency can be improved. By replacing the optical fibers with different lengths, light transmission illumination at different distances can be realized; by replacing the second self-focusing lens (9) with different sizes of the lamp holder end, the diameter of the light emitted from the lamp holder end can be adjusted, and therefore the irradiation area can be adjusted.
In the embodiment of the utility model, the light emitting end and the lamp holder end adopt the self-focusing lens to realize the structure; the utility model discloses a replace traditional lens with the self-focusing lens to combine self-focusing lens and other parts together such as optic fibre, luminescent chip, reach and reduce optical loss, improve optical transmission's effect.
To sum up, the utility model has the technical effects that:
the utility model discloses a combine self-focusing lens and fiber optic source, simplify the focus light path at optic fibre both ends greatly, expand beam collimation light path, improved the stability and the illumination intensity of fiber optic source light path simultaneously. The light is converged on the central surface of the convex surface of the lens through the optical characteristics of the self-focusing lens, so that the structure that the light is focused and transmitted into the optical fiber and is emitted out of the optical fiber and collimated out can be realized through a simple sleeved structure; the utility model can greatly reduce the processing and mounting precision requirements of the optical fiber and the lens fixing piece, improve the efficiency of light transmission, reduce the loss of light transmission and improve the illumination intensity; just the utility model has the advantages of simple structure, easily installation and dismantlement.
It should be noted that the terms first, second, third, fourth, fifth, sixth, etc. are used herein to describe various elements, but these elements should not be limited to these terms, and these terms are only used to distinguish one element of the same type from another. When an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
When a feature is referred to as being "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature, unless otherwise specified. Furthermore, the descriptions of upper, lower, left, right, etc. used in the present disclosure are only relative to the mutual positional relationship of the constituent parts of the present disclosure in the drawings. As used in this disclosure, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. In addition, unless defined otherwise, all technical and scientific terms used in this example have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description of the embodiments herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
While the preferred embodiments of the present invention have been described, the present invention is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included in the scope of the appended claims.
Claims (10)
1. An LED optical fiber light source device based on a self-focusing lens is characterized by comprising a light emitting end, a lamp holder end and an optical fiber;
the light emitting end comprises a power supply (1), a light emitting chip (2), a light source shell (3), a first sleeving piece (4), a first self-focusing lens (5) and a first optical fiber fixing piece (6); the power supply (1) is fixed on the inner side of the light source shell (3); the first self-focusing lens (5) is nested in the first sleeve piece (4); the first optical fiber fixing piece (6) is nested in the first sleeving piece (4) and is in butt joint with the first self-focusing lens (5);
the lamp holder end comprises a second optical fiber fixing piece (7), a second sleeving piece (8) and a second self-focusing lens (9); the second self-focusing lens (9) is nested in the second sleeving piece (8);
and two ends of the optical fiber are respectively connected with the first optical fiber fixing piece (6) and the second optical fiber fixing piece (7).
2. The LED optical fiber light source device based on the self-focusing lens is characterized in that a first small hole is formed in the middle of the first sleeving part (4), and the diameter of the first small hole is consistent with that of the first self-focusing lens (5).
3. The LED fiber optic light source device based on self-focusing lens as claimed in claim 2, wherein the first self-focusing lens (5) is a cylinder; the first self-focusing lens (5) is embedded into the first small hole of the first sleeving piece (4) and penetrates through the first small hole to be directly contacted with the light-emitting chip (2).
4. The LED optical fiber light source device based on the self-focusing lens is characterized in that the first sleeving part (4) is fixed on the light source shell (3) through screws.
5. The LED fiber optic light source device based on self-focusing lens as claimed in claim 3, wherein the first fiber holder (6) is inserted into the first small hole of the first socket member (4).
6. The LED optical fiber light source device based on the self-focusing lens is characterized in that the first optical fiber fixing member (6) is provided with a second small hole, and the optical fiber is connected with the first self-focusing lens (5) through the second small hole.
7. The LED fiber light source device based on the self-focusing lens is characterized in that a third small hole is formed in the middle of the second sleeving part (8), and the diameter of the third small hole is consistent with that of the second self-focusing lens (9).
8. The LED optical fiber light source device based on the self-focusing lens is characterized in that the second self-focusing lens (9) is a cylinder; the second self-focusing lens (9) is inserted into the third small hole of the second sleeve connector (8).
9. The LED fiber optic light source device based on self-focusing lens as claimed in claim 8, wherein the second fiber holder (7) is inserted into the third small hole of the second socket member (8).
10. The LED fiber optic light source device based on self-focusing lens as claimed in claim 9, wherein the second fiber holder (7) is provided with a fourth aperture through which the optical fiber is coupled with the second self-focusing lens (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922443854.8U CN211475533U (en) | 2019-12-27 | 2019-12-27 | LED optical fiber light source device based on self-focusing lens |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922443854.8U CN211475533U (en) | 2019-12-27 | 2019-12-27 | LED optical fiber light source device based on self-focusing lens |
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| CN211475533U true CN211475533U (en) | 2020-09-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114326009A (en) * | 2021-12-22 | 2022-04-12 | 杭州宏景智驾科技有限公司 | Laser radar collimating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114326009A (en) * | 2021-12-22 | 2022-04-12 | 杭州宏景智驾科技有限公司 | Laser radar collimating device |
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