CN115681881A - Light guide assembly structure - Google Patents
Light guide assembly structure Download PDFInfo
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- CN115681881A CN115681881A CN202211424947.6A CN202211424947A CN115681881A CN 115681881 A CN115681881 A CN 115681881A CN 202211424947 A CN202211424947 A CN 202211424947A CN 115681881 A CN115681881 A CN 115681881A
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Abstract
The invention provides a light guide assembly structure which comprises an LED light source, a lens, a light guide optical fiber and an installation body, wherein a light source installation cavity, an optical fiber installation channel, a lens installation cavity and a light outlet are sequentially arranged in the installation body along the length direction of the installation body. The LED light source is embedded in the light source installation cavity, the lens is embedded in the lens installation cavity, the light guide optical fiber is embedded in the optical fiber installation channel, and the inner wall surface of the optical fiber installation channel is made of light-tight materials. One end of the light guide fiber is close to and faces to the wafer of the LED light source, and the other end faces to the lens. The invention guides light by using the light guide fiber at the light-emitting point closest to the LED light source, because the caliber of the light guide fiber is obviously larger than the light-emitting light spot of the LED light source, even if the relative position assembly between the LED light source and the lens has deviation, the light can be covered by the light guide port of the light guide fiber, thereby avoiding the light leakage phenomenon at the periphery of the LED light source, reducing the light loss and improving the light-emitting efficiency of the product.
Description
Technical Field
The invention belongs to the technical field of semiconductor packaging, and particularly relates to a light guide assembly structure.
Background
Common LED secondary optics are all used by directly matching an LED light source with a lens, namely, light is emitted by light emitting rays according to a designed light path. The lens is generally bought and buckled with the PCB through a positioning column, and the LED light source is positioned through welding, so that a certain deviation exists in the combined light path model; moreover, peripheral light leakage phenomenon exists in the light emitting of the LED light source, and the light emitting efficiency of the product is influenced.
Disclosure of Invention
The invention aims to provide a light guide assembly structure, and aims to solve the problems that in the prior art, relative position positioning between an LED light source and a lens of an LED packaging structure has deviation, and the LED light source emits light and has peripheral light leakage.
The invention is realized in this way, a light guide assembly structure, which comprises an LED light source, a lens, a light guide optical fiber and an installation body, wherein a light source installation cavity, an optical fiber installation channel, a lens installation cavity and a light outlet are sequentially arranged in the installation body along the length direction; the LED light source is embedded in the light source installation cavity, the lens is embedded in the lens installation cavity, the light guide optical fiber is embedded in the optical fiber installation channel, and the inner wall surface of the optical fiber installation channel is made of light-tight materials; one end of the light guide optical fiber is close to and faces towards the wafer of the LED light source, and the other end of the light guide optical fiber faces towards the lens.
Further, a light converging cavity is also arranged in the mounting body and is positioned between the lens mounting cavity and the optical fiber mounting channel; the inner wall surface of the light converging cavity is covered with a reflective material.
Furthermore, the whole installation body is made of light-tight materials.
Further, the installation body comprises a base and an upper cover which are mutually covered, and the base and the upper cover are mutually buckled through a positioning column and a positioning hole between the base and the upper cover.
Furthermore, the top surface of the base is provided with the protruding positioning column, and the upper cover is provided with the positioning hole corresponding to the positioning column.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the light guide assembly structure, the light is guided by the light guide fiber at the light emergent point closest to the LED light source, because the caliber of the light guide fiber is obviously larger than the light emergent light spot of the LED light source, even if the relative position between the LED light source and the lens is assembled to have certain deviation, the light emergent light of the light spot can be covered by the light guide port of the light guide fiber, the light leakage phenomenon at the periphery of the LED light source can be avoided, the light loss is effectively reduced, the light emergent efficiency of a product is improved, and the electric power for driving and emitting can be saved compared with the conventional method under the condition of meeting the application.
2. When light guide fiber LED the light-emitting light of LED light source from other one end and derived, carry out secondary optical coupling through lens again, the facula effect deviation that the light that comes out like this formed is little, and in practical application, to the photoelectric sensing ware of transmission reception correlation, it is very accurate effective when carrying out point to point light signal processing.
3. The installation body shields the light path, can prevent external light pollution and prevent internal light from leaking outward, and plays dustproof effect simultaneously.
4. When a product is assembled, the light source installation cavity, the optical fiber installation channel and the lens installation cavity which are arranged in the installation body can facilitate the installation and the alignment of the LED light source, the light guide optical fiber and the lens, and the assembly is facilitated.
Drawings
Fig. 1 is a schematic perspective view of a light guide assembly structure according to an embodiment of the present invention;
FIG. 2 is a schematic longitudinal cross-sectional view of the light guide assembly of FIG. 1;
FIG. 3 is an exploded view of the light guide assembly of FIG. 1;
fig. 4 is a schematic exploded view of the light guide assembly shown in fig. 1 from another angle.
Description of reference numerals:
the LED light source comprises a 1-LED light source, an 11-wafer, a 2-lens, a 3-light guide fiber, a 4-installation body, a 41-base, a 411-positioning column, a 42-upper cover, a 421-positioning hole, an a-light source installation cavity, a b-fiber installation channel, a c-light converging cavity, a d-lens installation cavity and an e-light outlet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 and fig. 2, a light guide assembly structure provided in this embodiment is shown, including an LED light source 1, a lens 2, a light guide fiber 3, and an installation body 4, in which a light source installation cavity a, a fiber installation channel b, a light converging cavity c, a lens installation cavity d, and a light outlet e are sequentially arranged in the installation body 4 along a length direction thereof.
The LED light source 1 is embedded in the light source installation cavity a, the lens 2 is embedded in the lens installation cavity d, the light guide optical fiber 3 is embedded in the optical fiber installation channel b, one end of the light guide optical fiber 3 is close to and faces towards the wafer 11 of the LED light source 1, and the other end of the light guide optical fiber faces towards the lens 2.
In order to prevent the light of the light guide fiber 3 from leaking outside, the inner wall surface of the fiber installation channel b is made of a light-proof material. In practical application, the whole installation body 4 can be made of opaque material, and the inner wall surface of the light converging cavity c is covered with reflective material.
Specifically, referring to fig. 3 and 4, the mounting body 4 includes a base 41 and an upper cover 42 that are covered with each other, a protruding positioning column 411 is disposed on the top surface of the base 41, a positioning hole 421 is disposed on the upper cover 42 corresponding to the positioning column 411, and the base 41 and the upper cover 42 are fastened with each other through the positioning column 411 and the positioning hole 421 therebetween.
The leaded light package assembly of this embodiment, in the light-emitting point department that is closest to LED light source 1, leaded light with leaded light optic fibre 3, because the bore of leaded light optic fibre 3 can obviously be greater than the light-emitting light spot of LED light source 1, even if there is certain deviation in the relative position equipment between LED light source 1 and lens 4, the light of light spot light-emitting still can be covered by leaded light mouth of leaded light optic fibre 3, can avoid the light leak phenomenon of LED light source 1 periphery, the light loss has effectively been reduced, be favorable to improving the light-emitting efficiency of product, under satisfying the applied condition, can save the electric power of drive transmission than conventional way.
When light guide fiber 3 exported the light-emitting light of LED light source 1 from other one end, carried out secondary optical coupling through lens 4 again, the facula effect deviation that the light that comes out like this formed is little, and in practical application, to the photoelectric sensing ware of transmission reception correlation, it is very accurate effective when carrying out point-to-point light signal processing.
The installation body 4 shields the light path, can prevent external light from polluting and prevent internal light from leaking outside, and plays a dustproof role at the same time.
When the light guide optical fiber 3 is assembled, the light source installation cavity a, the optical fiber installation channel b and the lens installation cavity d which are arranged in the installation body 4 facilitate the installation and the alignment of the LED light source 1, the light guide optical fiber 3 and the lens 2, and the assembly is facilitated.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. A light guide assembly structure comprises an LED light source and a lens, and is characterized by further comprising a light guide optical fiber and an installation body, wherein a light source installation cavity, an optical fiber installation channel, a lens installation cavity and a light outlet are sequentially arranged in the installation body along the length direction of the installation body; the LED light source is embedded in the light source installation cavity, the lens is embedded in the lens installation cavity, the light guide optical fiber is embedded in the optical fiber installation channel, and the inner wall surface of the optical fiber installation channel is made of light-tight materials; one end of the light guide optical fiber is close to and faces towards the wafer of the LED light source, and the other end of the light guide optical fiber faces towards the lens.
2. The light-guiding assembly structure of claim 1, wherein a light converging cavity is further disposed in the mounting body, the light converging cavity being located between the lens mounting cavity and the optical fiber mounting channel; the inner wall surface of the light converging cavity is covered with a reflective material.
3. The light guide assembly structure of claim 1, wherein the mounting body is integrally made of an opaque material.
4. The light-guiding assembly structure of any one of claims 1 to 3, wherein the mounting body comprises a base and an upper cover that are covered with each other, and the base and the upper cover are fastened with each other through a positioning column and a positioning hole therebetween.
5. The light-guiding assembly structure of claim 4, wherein the top surface of the base has the protruding positioning posts, and the upper cover has the positioning holes corresponding to the positioning posts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211424947.6A CN115681881A (en) | 2022-11-14 | 2022-11-14 | Light guide assembly structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211424947.6A CN115681881A (en) | 2022-11-14 | 2022-11-14 | Light guide assembly structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115681881A true CN115681881A (en) | 2023-02-03 |
Family
ID=85051281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211424947.6A Pending CN115681881A (en) | 2022-11-14 | 2022-11-14 | Light guide assembly structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115681881A (en) |
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2022
- 2022-11-14 CN CN202211424947.6A patent/CN115681881A/en active Pending
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