CN212483906U - Optical lens capable of increasing horizontal angle - Google Patents
Optical lens capable of increasing horizontal angle Download PDFInfo
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- CN212483906U CN212483906U CN202021112083.0U CN202021112083U CN212483906U CN 212483906 U CN212483906 U CN 212483906U CN 202021112083 U CN202021112083 U CN 202021112083U CN 212483906 U CN212483906 U CN 212483906U
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Abstract
The utility model discloses an optical lens for increasing horizontal angle, which comprises a light-emitting part; the light-emitting part is provided with an incident plane and a light-emitting surface; the incident plane is vertical to the horizontal plane; the light-emitting surface is intersected with the horizontal plane to form a first curve, the first curve is provided with a total reflection section and a refraction section adjacent to the total reflection section, at least part of light incident from the incident plane is totally reflected in the total reflection section, and the light is emitted out through the adjacent refraction section after being totally reflected; the light emitting surface and the vertical surface are intersected to form a second curve, the vertical surface is perpendicular to the incident plane and the horizontal plane respectively, and the second curve protrudes towards the direction far away from the incident plane. The utility model discloses an increase horizontal angle's optical lens, it can solve present SMD outdoor display screen at perpendicular (from top to bottom) direction glazing utilization ratio not high, but uses behind the ordinary convex lens, the visual angle of level (left and right) direction is problem slightly little again.
Description
Technical Field
The utility model relates to an optical lens especially relates to an increase horizontal angle's optical lens.
Background
SMD type display screens are commonly used on the market, in which the viewing angles in the horizontal (left-right) direction and the vertical (up-down) direction are substantially identical, being about 120 °. When the SMD type display screen is used outdoors, some large-angle light can be emitted to the air in the vertical (up-down) direction, so that light pollution to a certain degree is caused, and the life of residents on peripheral high floors is influenced. At present, in order to solve this problem, it is common practice to add a light blocking eaves in the vertical (up-down) direction on the display screen cover, or to use a convex lens to change the viewing angle in the vertical (up-down) direction. The simple and rough use of the light-blocking eaves hinders the light transmission, so that a part of the light transmitted upwards is not utilized, and a certain degree of waste is caused. And utilize convex lens's spotlight effect, can make the visual angle in the perpendicular (upper and lower) direction diminish (can reduce to about 60), and can not reduce the utilization ratio of light, but use lens's spotlight effect also can make the visual angle in the horizontal (left and right) direction diminish simultaneously, the visual angle of level of little like this for this display screen can only use in specific occasion.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide an optical lens with increased horizontal angle, which can solve the problem that the prior SMD outdoor display screen has low glazing utilization rate in the vertical (up-down) direction, but has small visual angle in the horizontal (left-right) direction after using a common convex lens.
The purpose of the utility model is realized by adopting the following technical scheme:
an optical lens for increasing horizontal angle, comprising: a light-emitting part; the light-emitting part is provided with an incident plane and a light-emitting plane; the incident plane is vertical to the horizontal plane; the light-emitting surface is intersected with a horizontal plane to form a first curve, the first curve is provided with a total reflection section and a refraction section adjacent to the total reflection section, at least part of light incident from the incident plane is totally reflected in the total reflection section, and the light is emitted out through the adjacent refraction section after being totally reflected; the light emitting surface and the vertical surface are intersected to form a second curve, the vertical surface is perpendicular to the incident plane and the horizontal plane respectively, and the second curve protrudes towards the direction far away from the incident plane.
Furthermore, a light guide column is connected to the incident plane of the light emergent portion, the cross section area of one end, close to the incident plane, of the light guide column is larger than that of one end, far away from the incident plane, of the light guide column, and the area of the incident plane is 1.2-60 times that of one end, close to the incident plane, of the light guide column.
Furthermore, one end of the light guide column, which is close to the incident plane, is provided with an extension part extending downwards, and the taper of the side wall of the light guide column is 0.1-10 degrees.
Further, the extension part is provided with a slope, a step surface or a sawtooth surface which are inclined downwards, and the included angle between the slope and the side wall of the lower side of the light guide column is 0-60 degrees.
Further, the light guide pillar and the extension portion are integrally formed.
Further, a light path part is arranged between the light guide column and the incident plane, and the length of the light path part is between 0mm and 10 mm.
Further, the cross section of the light guide column is rectangular or trapezoidal.
Further, the centroid of the light guide column is above the centroid of the light emergent portion.
Furthermore, the number of the total reflection sections and the refraction sections of the first curve is multiple, and the total reflection sections and the refraction sections of the first curve are symmetrical about a vertical plane of the centroid of the light outlet part.
Further, the light guide post, the light path portion and the light emergent portion are integrally formed.
Compared with the prior art, the beneficial effects of the utility model reside in that: the light-emitting surface is intersected with the horizontal plane to form a first curve, the second curve is provided with a total reflection section and a refraction section, so that at least part of light rays entering from the incident plane in the horizontal direction can be totally reflected in the total reflection section, in the process, the totally reflected light rays have larger emergent angles, then the light rays are emitted through the adjacent refraction sections, and when the light rays are emitted from the refraction sections, the emergent angles are increased again, so that the visible angle in the horizontal direction is increased; and the second curve is formed by intersecting the light-emitting surface and the vertical surface, and the second curve protrudes towards the direction far away from the incident plane, so that the light rays in the vertical direction entering from the incident plane are converged towards the middle, the visual angle in the vertical direction is reduced, and the problem that the utilization rate of the light rays in the vertical direction is not high is solved. Additionally, the utility model discloses an increase horizontal angle's optical lens need install and use in LED lamp the place ahead to can play the guard action to LED lamp pearl.
Drawings
Fig. 1 is a front view of the optical lens for increasing horizontal angle according to the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a left side view of FIG. 1;
FIG. 4 is a schematic view showing the propagation of light rays in the light guide pillar, the light path portion and the light exit portion;
fig. 5 is a front view of the light emitting portion of the optical lens of the present invention with an increased horizontal angle;
fig. 6 is a top view of fig. 5.
In the figure: 1. a light-emitting part; 11. a first curve; 12. a second curve; 13. an incident plane; 2. a light guide pillar; 21. an extension portion; 3. an optical path section.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that 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. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 3 and 5 to 6, an optical lens with an increased horizontal angle according to an embodiment of the present invention is shown, which includes at least a light emitting portion 1. The light emitting part 1 has an incident plane 13 and a light emitting surface; the plane of incidence 13 is perpendicular to the horizontal plane; the light-emitting surface is intersected with the horizontal plane to form a first curve 11, the first curve 11 is provided with a total reflection section and a refraction section adjacent to the total reflection section, at least part of light incident from the incident plane 13 is totally reflected in the total reflection section and is emitted out through the adjacent refraction section after being totally reflected; the light-emitting surface intersects with a vertical surface to form a second curve 12, the vertical surface is perpendicular to the incident plane 13 and the horizontal plane, and the second curve 12 protrudes in a direction away from the incident plane 13.
The light-emitting surface is intersected with the horizontal plane to form a first curve 11, and the second curve 12 is provided with a total reflection section and a refraction section, so that at least part of light rays entering from the incident plane 13 in the horizontal direction can be totally reflected in the total reflection section; and the second curve 12 is formed by the intersection of the light-emitting surface and the vertical surface, and the second curve 12 protrudes towards the direction far away from the incident plane 13, so that the light rays in the vertical direction entering from the incident plane 13 converge towards the middle, the visual angle in the vertical (up-down) direction is reduced, and the problem of low utilization rate of the light rays in the vertical direction is avoided. Additionally, the utility model discloses an increase horizontal angle's optical lens need install and use in LED lamp the place ahead to can play the guard action to LED lamp pearl.
In a preferred embodiment, the light guide column 2 is further connected to the incident plane 13 of the light emergent portion 1, the cross-sectional area of the end of the light guide column 2 close to the incident plane 13 is larger than the cross-sectional area of the end of the light guide column 2 far from the incident plane 13, and the area of the incident plane 13 is 1.2-60 times the cross-sectional area of the end of the light guide column 2 close to the incident plane 13. The light guide column 2 is used for guiding light rays emitted by the LED lamp beads into the light emitting part 1. And the area of the incident plane 13 is 1.2-60 times of the cross section area of one end of the light guide column 2 close to the incident plane 13, so that light rays emitted by the LED lamp beads can all enter the light emergent part 1 after being guided by the light guide column 2, and the utilization rate of the light rays is ensured.
Preferably, one end of the light guide 2 near the incident plane 13 is provided with an extension 21 extending downwards, and the taper of the side wall of the light guide 2 is 0.1-10 °. Specifically, the extension portion 21 has a slope, a step surface or a sawtooth surface inclined downward, and when the extension portion 21 has a slope inclined downward, an included angle between the slope and the sidewall of the lower side of the light guide bar 2 is 0 to 60 °. By the arrangement mode, after being reflected by the side wall, the light enters the light emergent part 1 at an angle of 0-45 degrees. And the angle of the inclined plane and the side wall of the lower side of the light guide column 2 is 0-60 degrees, so that the light rays in the vertical (up-down) direction can be emitted downwards in a larger proportion (when people watch an outdoor LED display screen, people watch the LED display screen in the lower part more times), and the utilization rate of the light rays is further improved.
Preferably, the light guide post 2 is integrally formed with the extension 21. The structural strength of the light guide column 2 and the extension part 21 can be ensured by integrally forming, and the process can be saved.
Preferably, a light path part 3 is further arranged between the light guide column 2 and the incident plane 13, and the length of the light path part 3 is between 0mm and 10 mm. Through setting up light path portion 3, can be convenient the utility model discloses increase horizontal angle's optical lens's installation can be in order to utilize light path portion 3 to fix a position and fix whole optical lens.
Preferably, the plane of incidence 13 is circular or elliptical. Of course, the shape of the incident plane 13 of the optical lens for increasing the horizontal angle of the present invention is not limited, and the shape is only a commonly used shape.
Preferably, the light guide pole 2 has a rectangular or trapezoidal cross-section.
Preferably, the centroid of the light guide post 2 is above the centroid of the light exit portion 1. Like this also can make the light of vertical (upper and lower) direction have bigger proportion to emit downwards (when people watched outdoor LED display screen, watch in the below more often) to further improve the utilization ratio of light.
Preferably, the number of the total reflection segments and the refraction segments of the first curve 11 is multiple, and the multiple total reflection segments and the refraction segments of the first curve 11 are symmetrical about a vertical plane passing through the centroid of the light emergent portion 1. The number of the total reflection segments and the refraction segments in the embodiment is preferably two, and the adjacent total reflection segments and refraction segments and the other adjacent total reflection segments and refraction segments are symmetrically arranged on a vertical plane passing through the centroid of the light emergent portion 1. Through the arrangement mode, the light in the horizontal direction can be totally reflected and refracted on the left side and the right side, and therefore the visual angle in the horizontal (left-right) direction is improved.
Preferably, the light guide post 2, the extension portion 21, the light path portion 3, and the light exit portion 1 are integrally molded. Likewise, the integrated into one piece here also can guarantee the utility model discloses optical lens's structural strength can also save the process simultaneously.
The utility model discloses an increase horizontal angle's optical lens is using, the process of marcing of light as follows:
light that the LED lamp sent gets into leaded light post 2, and light gets into light path portion 3 through the lateral wall reflection back of leaded light post 2 to 0-45 angle, and light passes through light path portion 3 back, can continue to get into out light portion 1 through incident plane 13 with 0-45 angle, can take place following several kinds of circumstances this moment, refer to fig. 4:
(1)0-15 degree light rays are emitted to the areas a, b and c, and at the moment, the light rays can be directly refracted out of the outside from the light emergent part 1;
(2) the 15-35 degree light is emitted to the area b, the light can be totally reflected once and then refracted out of the outside from the area c, the light emitted from the area c can reach 50-65 degrees, and the reason for increasing the horizontal (left and right) visual angle of the utility model comes from the area c; a part of 15-35 degrees of light can be emitted to the areas c and d, the light can be directly refracted out of the outside from the light emergent part 1, and the angle of a few light rays can reach 50 degrees;
(3) light of 35-45 is directed into region d, which is also refracted directly out of the environment and may exit at angles of up to 50-65.
The following description is made by taking light rays (r) and (c) as an example, and refer to fig. 4:
after 2 times of total emission, the light ray in the light guide column 2 passes through the light path part 3 at an incident angle of 20 degrees, when the light ray exits the light-out part 1, the light ray firstly enters the area b, the included angle between the light ray and the total reflection section is larger than a critical angle, the light ray is totally reflected again, and then the light ray is refracted out from the area c, and the refraction angle is 67 degrees.
The light ray II directly passes through the light path part 3 at an incident angle of 7 degrees, and the light ray II is irradiated in the area b and then directly refracted out of the outside.
The light ray (c) passes through the light path part 3 at an incident angle of 30 degrees after being totally reflected once on the light guide column 2, and when the light ray (c) is emitted to the light emitting part 1, the light ray (c) is firstly emitted to the area d and is emitted to the outside at an emergent angle of 50 degrees after being refracted.
The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.
Claims (10)
1. An optical lens for increasing horizontal angle, comprising: a light-emitting part; the light-emitting part is provided with an incident plane and a light-emitting plane; the incident plane is vertical to the horizontal plane; the light-emitting surface is intersected with a horizontal plane to form a first curve, the first curve is provided with a total reflection section and a refraction section adjacent to the total reflection section, at least part of light incident from the incident plane is totally reflected in the total reflection section, and the light is emitted out through the adjacent refraction section after being totally reflected; the light emitting surface and the vertical surface are intersected to form a second curve, the vertical surface is perpendicular to the incident plane and the horizontal plane respectively, and the second curve protrudes towards the direction far away from the incident plane.
2. The optical lens for increasing the horizontal angle as claimed in claim 1, wherein a light guide pillar is further connected to the incident plane of the light emergent portion, the cross-sectional area of the light guide pillar at the end close to the incident plane is larger than the cross-sectional area of the light guide pillar at the end far from the incident plane, and the area of the incident plane is 1.2-60 times the cross-sectional area of the light guide pillar at the end close to the incident plane.
3. The increased horizontal angle optical lens of claim 2, wherein the end of the light guide near the incident plane is provided with a downward extending extension, and the taper of the light guide sidewall is 0.1-10 °.
4. The increased horizontal angle optical lens of claim 3, wherein the extension has a slope, a step or a saw-tooth surface inclined downward, and the slope forms an angle of 0-60 ° with the sidewall of the lower side of the light guide pillar.
5. The increased horizontal angle optical lens of claim 3 wherein the light guide post is integrally formed with the extension.
6. The horizontal angle increasing optical lens according to claim 2, wherein a light path portion is further disposed between the light guide pillar and the incident plane, and the length of the light path portion is between 0mm and 10 mm.
7. The increased horizontal angle optical lens of claim 2 wherein the light guide is rectangular or trapezoidal in cross-section.
8. The increased horizontal angle optical lens of claim 3, wherein the centroid of the light guide bar is above the centroid of the light exit portion.
9. The increased horizontal angle optical lens of claim 3, wherein the number of total reflection segments and refraction segments of the first curve is plural, and the plural total reflection segments and refraction segments of the first curve are symmetrical with respect to a vertical plane of the centroid of the light exit portion.
10. The optical lens for increasing a horizontal angle as claimed in claim 5, wherein the light guide pillar, the extension portion, the light path portion and the light exit portion are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021112083.0U CN212483906U (en) | 2020-06-16 | 2020-06-16 | Optical lens capable of increasing horizontal angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021112083.0U CN212483906U (en) | 2020-06-16 | 2020-06-16 | Optical lens capable of increasing horizontal angle |
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| Publication Number | Publication Date |
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| CN212483906U true CN212483906U (en) | 2021-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021112083.0U Active CN212483906U (en) | 2020-06-16 | 2020-06-16 | Optical lens capable of increasing horizontal angle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113436560A (en) * | 2021-06-09 | 2021-09-24 | 安徽省东超科技有限公司 | Imaging optical system and display device |
| CN113885107A (en) * | 2020-06-16 | 2022-01-04 | 佛山市青松科技股份有限公司 | Optical lens capable of increasing horizontal angle |
-
2020
- 2020-06-16 CN CN202021112083.0U patent/CN212483906U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113885107A (en) * | 2020-06-16 | 2022-01-04 | 佛山市青松科技股份有限公司 | Optical lens capable of increasing horizontal angle |
| CN113436560A (en) * | 2021-06-09 | 2021-09-24 | 安徽省东超科技有限公司 | Imaging optical system and display device |
| CN113436560B (en) * | 2021-06-09 | 2022-11-18 | 安徽省东超科技有限公司 | Imaging optical system and display device |
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