Light emitting structure capable of improving emergent angle and infrared light source module

Abstract

The utility model provides a light-emitting structure for improving an exit angle and an infrared light source module, the light-emitting structure for improving the exit angle comprises an outer shell, an optical lens, a light source and an inner shell, the outer shell is provided with a light-emitting channel, the inner shell is provided with a mounting groove, the outer shell covers the inner shell, the optical lens comprises a lens main body and a light-emitting column, and the light-emitting column is arranged on the lens main body. The light-emitting column is connected to the lens body, the lens body is installed in the installation groove, part of the light-emitting column penetrates through the light-emitting channel, one end of the light-emitting column is a plane, and a wedge-shaped part is formed at the other end of the light-emitting column. The wedge-shaped part comprises a first arc light incident surface and a second arc light incident surface which are used for converging light rays, a light incident refracting surface for changing the path of the light rays and a light incident reflecting surface for reflecting the light rays, and the center of the light emitting column and the center of the light source are eccentrically arranged. Through the wedge-shaped part of the light emitting part, the infrared light is emitted more intensively, so that the optical transmittance of the infrared light is high, and the performance of controlling other electronic equipment by the infrared light is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of optical lenses, and in particular to a light emitting structure and an infrared light source module for improving an emission angle. Background Art

[0002] The intelligent electronic device is provided with an infrared light source, and an infrared lamp cover is provided on the infrared light source, which can protect the infrared light source and prevent the intelligent electronic device from colliding and damaging the infrared light source during use. The infrared light source can emit infrared light, which can be used as a remote control light source to control other electronic devices.

[0003] Since the space of intelligent electronic devices is small, all components of intelligent electronic devices are arranged in fixed positions. When the installation positions of the infrared light source and the infrared lamp cover are fixed, the infrared lamp cover and the infrared light source are eccentrically arranged, so that the offset angle between the infrared light emission angle and the infrared lamp cover is too large, so that the transmittance of the infrared light from the infrared lamp cover is low, and the performance of infrared light controlling other electronic devices is affected.

[0004] For example, the optical sensor module and electronic device disclosed in the comparative document CN202320678621.X include: an optical element, a light guide lampshade and an adapter; the light guide lampshade is located on a structural member of the electronic device, the adapter is located inside the structural member and is connected to the circuit board of the electronic device; the optical element is located on the adapter, and the distance between the optical center of the optical element and the center line of the light guide lampshade is less than or equal to the target threshold. In the optical sensor module of the utility model, the position of the optical element is free from the limitations of internal stacking structures such as circuit boards, has better stacking freedom, can better adapt to the position of the light guide lampshade, and ensures a high transmittance of infrared light. However, when the position of the optical element of this scheme is set with the light guide lampshade, the transmittance of infrared light is low, and the infrared performance is affected. Utility Model Content

[0005] The purpose of the present disclosure is to overcome the deficiencies in the prior art and to provide a light-emitting structure and an infrared light source module that improve the emission angle of infrared light and have high optical transmittance of infrared light and improve the emission angle.

[0006] The purpose of this disclosure is achieved through the following technical solutions:

[0007] A light-emitting structure for improving the emission angle comprises an outer shell, an optical lens, a light source and an inner shell, wherein the outer shell is provided with a light-emitting channel, the inner shell is provided with a mounting groove, and the outer shell is covered on the inner shell.

[0008] The optical lens includes a lens body, a light output column and a raised portion, the light output column is connected to the lens body, the lens body is installed in the installation groove, part of the light output column is passed through the light output channel, one end of the light output column is a plane, and the other end of the light output column is formed with a wedge-shaped portion, the wedge-shaped portion includes a first arc light incident surface, a second arc light incident surface, a light incident refractive surface and a light incident reflective surface connected in sequence, the first arc light incident surface and the second arc light incident surface form an arc convex structure, the first arc light incident surface and the second arc light incident surface are respectively used to converge light, the second arc light incident surface and the light incident refractive surface form a wedge-shaped angle groove structure, the light incident refractive surface and the light incident reflective surface form a wedge-shaped angle convex structure, the light incident refractive surface is used to change the path of the light, the light incident reflective surface is used to reflect the light, and the center of the light output column is eccentrically arranged between the center of the light source.

[0009] In one embodiment, the lens body is further provided with a protruding portion, the protruding portion is connected to a side of the lens body facing away from the outer shell, and the protruding portion abuts against a side wall of the inner shell.

[0010] In one embodiment, the number of the protrusions is two, and the two protrusions are respectively arranged on both sides of the optical lens, and the two protrusions are respectively abutted against both sides of the inner shell.

[0011] In one of the embodiments, a mirror reflective surface is further provided on the outer periphery of the light output column.

[0012] In one embodiment, the outer shell is provided with a protruding positioning member, the inner shell is provided with a positioning groove, and the positioning member is installed in the positioning groove.

[0013] In one embodiment, the lens body is a disc structure.

[0014] In one of the embodiments, the refraction angle of the incident light refraction surface is 20°-30°.

[0015] In one of the embodiments, the reflection angle of the light incident reflection surface is 13°-20°.

[0016] In one of the embodiments, the eccentric distance between the center of the light source and the center of the light output column is 0.2 mm-0.6 mm.

[0017] An infrared light source module comprises the light emitting structure for improving the emission angle described in any one of the above embodiments.

[0018] Compared with the prior art, the present invention has at least the following advantages:

[0019] In the above-mentioned infrared light source module with a light-emitting structure that improves the emission angle, when the light source and the light-emitting column are eccentrically arranged, part of the infrared light emitted by the light source converges through the first arc light-entering surface and the second arc light-entering surface, and the converged infrared light is emitted along the extension direction of the light-emitting column. Part of the infrared light that deviates from the direction of the light-emitting column passes through the light-entering refractive surface, and the light-entering refractive surface causes the infrared light to shift in the extension direction of the light-emitting column, thereby making the infrared light emission more concentrated. Part of the infrared light that deviates greatly from the direction of the light-emitting column is reflected on the light-entering reflecting surface, and the light-entering reflecting surface changes the emission path of the infrared light, so that the infrared light is emitted in the concentrated direction of the light-emitting column, further improving the emission angle of the infrared light of the light source, making the infrared light emission more concentrated, thereby making the optical transmittance of the infrared light high, and thereby improving the performance of infrared light in controlling other electronic devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of a light emitting structure for improving an emission angle according to an embodiment;

[0022] Figure 2 for Figure 1 A cross-sectional view of the light emitting structure for improving the emission angle along line AA shown;

[0023] Figure 3 for Figure 1 A cross-sectional view of the light-emitting structure for improving the emission angle along line BB;

[0024] Figure 4 for Figure 1 The schematic diagram of the structure of the optical lens shown;

[0025] Figure 5 for Figure 1 Another structural schematic diagram of the optical lens shown;

[0026] Figure 6 for Figure 1 The light ray diagram of the light emitting structure for improving the emission angle is shown;

[0027] Figure 7 for Figure 1 The light spot diagram of the light emitting structure showing improved emission angle;

[0028] Figure 8 for Figure 1A light intensity curve diagram of the light output structure with improved output angle is shown. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0032] In order to better understand the technical solutions and beneficial effects of the present invention, the present invention is further described in detail below in conjunction with specific embodiments:

[0033] like Figure 1 As shown, it is a light-emitting structure 10 for improving the emission angle of an embodiment of the present disclosure, which includes an outer shell 100, an optical lens 200, a light source 300 and an inner shell 400. The outer shell 100 is provided with a light-emitting channel 101, the inner shell 400 is provided with a mounting groove 401, and the outer shell 100 is covered on the inner shell 400.

[0034] like Figures 2 to 5As shown, further, the optical lens 200 includes a lens body 210 and a light output column 220, the light output column 220 is connected to the lens body 210, the lens body 210 is installed in the installation groove 401, part of the light output column 220 is arranged in the light output channel 101, one end of the light output column 220 is a plane, and the other end of the light output column 220 is formed with a wedge-shaped portion 221, the wedge-shaped portion 221 includes a first arc light incident surface 2211, a second arc light incident surface 2212, a light incident refractive surface 2213 and a light incident reflective surface 2214 connected in sequence, and the first arc The light incident surface 2211 and the second arc light incident surface 2212 form an arc convex structure, the first arc light incident surface 2211 and the second arc light incident surface 2212 are respectively used to converge light, the second arc light incident surface 2212 and the light incident refractive surface 2213 form a wedge-shaped angle groove structure, the light incident refractive surface 2213 and the light incident reflective surface 2214 form a wedge-shaped angle convex structure, the light incident refractive surface 2213 is used to change the path of light, and the light incident reflective surface 2214 is used to reflect light, and the center of the light output column 220 is eccentrically set between the center of the light source 300.

[0035] In this embodiment, the light source 300 and the light output column 220 are eccentrically arranged, so that the infrared light emitted by the light source 300 deviates from the extension direction of the light output column 220, and a part of the infrared light passes through the first arc light input surface 2211 and the second arc light input surface 2212, and the first arc light input surface 2211 and the second arc light input surface 2212 respectively converge the infrared light, so that most of the infrared light is emitted along the extension direction of the light output column 220; the light source 300 and the light output column 220 are eccentrically arranged, and part of the infrared light is emitted in a direction deviating from the light output column 220, and the infrared light deviating from the direction of the light output column 220 passes through the light input refractive surface 2213, and the light input refractive surface 2213 makes the emission direction of the infrared light deviating from the direction of the light output column 220 shifted in the extension direction of the light output column 220, and the infrared light deviating from the direction of the light output column 220 with a larger amount is reflected at the light input reflecting surface 2214, so that the deviated infrared light is emitted in the extension direction of the light output column 220.

[0036] like Figures 6 to 8 As shown, further, the light emitting light of the light emitting structure 10 with improved emission angle is concentrated in the direction parallel to the extension of the light emitting column 220, the light spot is concentrated in front of the light emitting column 220, and the light intensity in front of the light emitting column 220 is strong. The first arc light incident surface 2211, the second arc light incident surface 2212, the light incident refractive surface 2213 and the light incident reflective surface 2214 of the light emitting column 220 make the infrared light concentrated and the optical transmittance of the infrared light high.

[0037] In the above-mentioned light-emitting structure 10 for improving the emission angle, when the light source 300 and the light-emitting column 220 are eccentrically arranged, part of the infrared light emitted by the light source 300 converges through the first arc light-entering surface 2211 and the second arc light-entering surface 2212, and the converged infrared light is emitted along the extension direction of the light-emitting column 220, and part of the infrared light deviating from the direction of the light-emitting column 220 passes through the light-entering refractive surface 2213, and the light-entering refractive surface 2213 makes the infrared light shift toward the extension direction of the light-emitting column 220, so that the infrared light emission is more concentrated, and the part of the infrared light deviating from the direction of the light-emitting column 220 is reflected on the light-entering reflecting surface 2214, and the light-entering reflecting surface 2214 changes the emission path of the infrared light, so that the infrared light is emitted in the concentrated direction of the light-emitting column 220, further improving the emission angle of the infrared light of the light source 300, making the infrared light emission more concentrated, thereby making the optical transmittance of the infrared light high, and further improving the performance of infrared light controlling other electronic devices.

[0038] like Figure 1 and Figure 2 As shown, in one embodiment, the lens body 210 is further provided with a protrusion 500, the protrusion 500 is connected to the side of the lens body 210 facing away from the outer shell 100, and the protrusion 500 abuts against the side wall of the inner shell 400. In this embodiment, the protrusion 500 abuts against the inner shell 400, restricting the movement of the lens body 210 and restricting the rotation of the lens body 210, so that the installation position of the light column 220 is fixed.

[0039] like Figure 1 and Figure 2 As shown, in one embodiment, there are two protrusions 500, which are respectively arranged on both sides of the optical lens 200, and the two protrusions 500 are respectively abutted against both sides of the inner shell 400. In this embodiment, the two protrusions 500 abut against both sides of the inner shell 400 at the same time, further limiting the movement of the lens, further reducing the shaking of the light column 220, and thus improving the connection strength of the outer shell 100, the optical lens 200, the light source 300 and the inner shell 400.

[0040] like Figure 3 As shown, in one embodiment, a mirror reflective surface 222 is further provided at the outer periphery of the light output column 220. In this embodiment, the light output column 220 can be coated with a layer of paint by spraying, so that the outer edge of the light output column 220 forms a mirror reflective surface 222, which reduces the light leakage generated by the periphery of the light output column 220, so that the infrared light of the light source 300 is more efficiently utilized.

[0041] like Figure 3As shown, in one embodiment, the outer shell 100 is provided with a locating member 110, the inner shell 400 is provided with a locating groove 402, and the locating member 110 is installed in the locating groove 402. In this embodiment, the outer shell 100 and the inner shell 400 need to be closely matched, and when the locating member 110 is installed in the locating groove 402, the locating member 110 limits the movement of the inner shell 400, so that the positions of the outer shell 100 and the inner shell 400 are fixed, and the connection between the outer shell 100 and the inner shell 400 is made tighter.

[0042] like Figure 5 As shown, in one embodiment, the lens body 210 is a disc structure. In this embodiment, the mounting groove 401 is adapted to form a disc structure, and the lens body 210 is installed in the mounting groove 401. The disc structure makes the lens body 210 easy to process and uses less materials.

[0043] like Figure 4 As shown, in one embodiment, the refraction angle of the incident refraction surface 2213 is 20°-30°. In this embodiment, the refraction angle of the incident refraction surface 2213 is the position shown at D. When the refraction angle is too large, the deviation of the infrared light passing through the incident refraction surface 2213 is small, so that the effect of the incident refraction surface 2213 is small. When the refraction angle is too small, the incident refraction surface 2213 is close to horizontal with the light source 300, and the amount of infrared light entering the incident refraction surface 2213 is small. The refraction angle of the incident refraction surface 2213 is 20°-30°, so that the refraction effect of the incident refraction surface 2213 is better.

[0044] like Figure 4 As shown, in one embodiment, the reflection angle of the incident light reflection surface 2214 is 13°-20°. In this embodiment, the reflection angle of the incident light reflection surface 2214 is the position shown at C. When the angle of the incident light reflection surface 2214 is large, the incident light reflection surface 2214 is close to horizontal with the infrared light, and the incident light reflection surface 2214 cannot reflect the angle of the infrared light. When the incident light reflection surface 2214 is small, the incident light reflection surface 2214 is close to vertical with the infrared light, so that the offset angle of the infrared light is too much, and the light-emitting direction of the infrared light deviates from the extension direction of the light-emitting column 220. The angle of the incident light reflection surface 2214 is 13°-20°, so that the light-emitting direction of the infrared light is closer to the extension direction of the light-emitting column 220.

[0045] like Figure 2As shown, in one embodiment, the eccentric distance between the center of the light source 300 and the center of the light column 220 is 0.2mm-0.6mm. In this embodiment, when the eccentricity between the center of the light source 300 and the center of the light column 220 is too much, the incident light reflection surface 2214 and the incident light refraction surface 2213 of the light column 220 change the light output deviation angle of the infrared light too small, and the infrared light deviates from the extension direction of the light column 220. When the eccentricity between the center of the light source 300 and the center of the light column 220 is too much, due to the limited space in the inner shell 400, the light source 300 cannot be installed in a fixed position. The eccentric distance between the center of the light source 300 and the center of the light column 220 is 0.2mm-0.6mm, so that the incident light reflection surface 2214 and the incident light refraction surface 2213 of the light column 220 change the light output deviation effect of the infrared light better.

[0046] The present application also provides an infrared light source module, the light emitting structure 10 for improving the emission angle described in any of the above embodiments. In this embodiment, by improving the emission angle of the infrared light of the eccentrically arranged light source 300, the infrared light is made to emit light close to the extension direction of the light emitting column 220, thereby making the infrared light emission effect better.

[0047] Compared with the prior art, the present invention has at least the following advantages:

[0048] The above-mentioned light-emitting structure 10 and infrared light source module for improving the emission angle, when the light source 300 and the light-emitting column 220 are eccentrically arranged, part of the infrared light emitted by the light source 300 converges through the first arc light-entering surface 2211 and the second arc light-entering surface 2212, and the converged infrared light is emitted along the extension direction of the light-emitting column 220, and part of the infrared light deviating from the direction of the light-emitting column 220 passes through the light-entering refractive surface 2213, and the light-entering refractive surface 2213 makes the infrared light shift toward the extension direction of the light-emitting column 220, so that the infrared light emission is more concentrated, and the part of the infrared light deviating from the direction of the light-emitting column 220 is reflected on the light-entering reflecting surface 2214, and the light-entering reflecting surface 2214 changes the emission path of the infrared light, so that the infrared light is emitted in the concentrated direction of the light-emitting column 220, further improving the emission angle of the infrared light of the light source 300, making the infrared light emission more concentrated, so that the optical transmittance of the infrared light is high, and then the performance of infrared light controlling other electronic devices is improved.

[0049] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the disclosed patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the disclosed patent shall be subject to the attached claims.

Claims

1. A light-emitting structure for improving the emission angle, comprising an outer shell, an optical lens, a light source and an inner shell, wherein the outer shell is provided with a light-emitting channel, the inner shell is provided with a mounting groove, and the outer shell is covered on the inner shell, characterized in that: The optical lens includes a lens body and a light output column, the light output column is connected to the lens body, the lens body is installed in the installation groove, part of the light output column is passed through the light output channel, one end of the light output column is a plane, and the other end of the light output column is formed with a wedge-shaped portion, the wedge-shaped portion includes a first arc light incident surface, a second arc light incident surface, a light incident refractive surface and a light incident reflective surface connected in sequence, the first arc light incident surface and the second arc light incident surface form an arc convex structure, the first arc light incident surface and the second arc light incident surface are respectively used to converge light, the second arc light incident surface and the light incident refractive surface form a wedge-shaped angle groove structure, the light incident refractive surface and the light incident reflective surface form a wedge-shaped angle convex structure, the light incident refractive surface is used to change the path of the light, the light incident reflective surface is used to reflect the light, and the center of the light output column is eccentrically arranged between the center of the light source.

2. The light emitting structure for improving the emission angle according to claim 1, characterized in that: The lens body is further provided with a protruding portion, the protruding portion is connected to a side of the lens body facing away from the outer shell, and the protruding portion abuts against the side wall of the inner shell.

3. The light emitting structure for improving the emission angle according to claim 2, characterized in that: The number of the protrusions is two, and the two protrusions are respectively arranged on both sides of the optical lens, and the two protrusions are respectively abutted against both sides of the inner shell.

4. The light emitting structure for improving the emission angle according to claim 1, characterized in that: The outer periphery of the light output column is also provided with a mirror reflection surface.

5. The light emitting structure for improving the emission angle according to claim 1, characterized in that: The outer shell is provided with a locating piece protruding therefrom, the inner shell is provided with a locating groove, and the locating piece is installed in the locating groove.

6. The light emitting structure for improving the emission angle according to claim 1, characterized in that: The lens body is a disc structure.

7. The light emitting structure for improving the emission angle according to claim 1, characterized in that: The refraction angle of the incident light refraction surface is 20°-30°.

8. The light emitting structure for improving the emission angle according to claim 1, characterized in that: The reflection angle of the incident light reflecting surface is 13°-20°.

9. The light emitting structure for improving the emission angle according to claim 1, characterized in that: The eccentric distance between the center of the light source and the center of the light output column is 0.2 mm to 0.6 mm.

10. An infrared light source module, characterized in that: The invention comprises a light emitting structure for improving the emission angle as described in any one of claims 1 to 9.

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