CN209229640U - A kind of LED light lens structure and LED blackboard lights - Google Patents
A kind of LED light lens structure and LED blackboard lights Download PDFInfo
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- CN209229640U CN209229640U CN201920162160.4U CN201920162160U CN209229640U CN 209229640 U CN209229640 U CN 209229640U CN 201920162160 U CN201920162160 U CN 201920162160U CN 209229640 U CN209229640 U CN 209229640U
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Abstract
The utility model discloses a kind of LED light lens structure, including lens body, and lens body side is the first reflecting surface, first reflecting surface is TIR light face, the lens body other side is the second reflecting surface, and the second reflecting surface is hyperbola optical surface, and hyperbola optical surface is opposite with TIR light face；Lens body upper end is light-emitting surface, and light-emitting surface is polarization optical face；Lens body lower end is the plane of incidence, the plane of incidence is set as groove, groove has bottom and the first side and the second side positioned at two sides of the bottom, the bottom of groove is TIR light face, it is opposite with polarization optical face, first side of groove is close to hyperbola optical surface, and the first side of groove is sawtooth Microstructure Optics face, and the second side of groove is close to the first reflecting surface.A kind of LED blackboard lights are also disclosed in the utility model.The light that the utility model issues LED light source is uniformly and efficient after lens.
Description
Technical field
The utility model relates to technical field of LED illumination, in particular to a kind of LED light lens structure and LED blackboard lights.
Background technique
Classroom blackboard lamp is in order to meet Uniform Illumination blackboard requirement, it is desirable that reasonable installation site and light distribution, with full
Sufficient use demand.Actually use situation for blackboard illumination lamp: blackboard lights be suitable for be mounted on teacher standing place and blackboard it
Between, blackboard lights and blackboard horizontal distance are less than 0.4m, so as to avoid light irradiation teacher's eyes from causing dazzle.But by
It is close apart from blackboard in blackboard lights, to realize that the blackboard illuminating effect of high uniformly high photosynthetic efficiency, traditional optical plan are difficult to reach
It is required that.
In the prior art, blackboard lights generally use reflector scheme, as shown in Figure 1, passing through the reflector for being provided with opening
The light that LED light 20 emits is reflexed to blackboard by 10, however, the light of 10 open front face of reflector is directly emitted, it can not be effective
Control utilizes, and useless stray light easy to form causes uneven illumination even or dazzle.
In addition, as shown in Figures 2 and 3, the luminous schematic diagram of the LED wide-angle that the prior art discloses, the light of LED light outgoing
The light angle formed after lens refracted portion curved surface is larger, when the LED lamp structure is as blackboard lights, installs in short distance
In the case where the blackboard lights, the biggish some light of the light angle, which can not efficiently use, to be radiated on blackboard, is caused on blackboard
Part is higher close to the region illumination of lamps and lanterns, unevenly.
Application No. is CN201721104425.2 to disclose a kind of TIR lens and device for realizing Uniform Illumination, including transparent
Mirror body, transparent mirror body have bottom surface, the face TIR and exit facet, and bottom surface is provided with first plane of incidence and second plane of incidence, are emitted bread
Include the corrugated surface being periodically arranged.The TIR lens and device are mainly used in the illumination of shot-light class, and in-between border circular areas is special
It is bright, remaining region be all it is dark, still remain light not enough uniform not efficient enough phenomenon.
In view of this, the utility model develops a kind of LED light lens structure for overcoming the defect and LED blackboard lights,
Thus this case generates.
Utility model content
The utility model is intended to solve one of the technical problem in above-mentioned technology at least to a certain extent.For this purpose, this reality
It is to propose a kind of LED light lens structure with a novel purpose, so that the light that LED light source issues is uniformly and high after lens
Effect.
Second purpose of the utility model be to propose a kind of LED blackboard lights, the light which issues uniformly and
Efficiently.
In order to achieve the above objectives, the utility model first aspect embodiment proposes a kind of LED light lens structure, including saturating
Mirror ontology, lens body side are the first reflecting surface, and the first reflecting surface is TIR light face, and the lens body other side is second anti-
Face is penetrated, the second reflecting surface is hyperbola optical surface, and hyperbola optical surface is opposite with TIR light face；
Lens body upper end is light-emitting surface, and light-emitting surface is polarization optical face；
Lens body lower end is the plane of incidence, and the plane of incidence is set as groove, and groove has bottom and positioned at the of two sides of the bottom
One side and the second side, the bottom of groove is TIR light face, opposite with polarization optical face, and the first side of groove is close to double
First side of curve optical surface, groove is sawtooth Microstructure Optics face, and the second side of groove is close to the first reflecting surface.
According to a kind of LED light lens structure of the utility model embodiment, since lens body side is the first reflecting surface,
First reflecting surface is TIR light face, and the lens body other side is the second reflecting surface, and the second reflecting surface is hyperbola optical surface；Thoroughly
Mirror ontology upper end is light-emitting surface, and light-emitting surface is polarization optical face；Lens body lower end is the plane of incidence, and the plane of incidence is set as groove,
The bottom of groove is TIR light face, and the first side of groove is sawtooth Microstructure Optics face close to hyperbola optical surface.
LED light source is placed in groove, and bottom and first reflecting surface of some light through groove that LED light source issues form small
Angle parallel light forms light beam of polarized light using the polarization optical face of lens body upper end, among this some light directive blackboard
Region；The sawtooth Microstructure Optics face for first side of some light through groove that LED light source issues and pair of the second reflecting surface
Curve optical surface is emitted using the polarization optical face of lens body upper end, this some light makes up the photograph of blackboard peripheral regions
Degree.Therefore, the light that LED light source issues is uniformly and efficient after lens.
In addition, can also be had following attached according to a kind of LED light lens structure that the utility model above-described embodiment proposes
The technical characteristic added:
Further, hyperbola optical surface is 1/4 hyperbola.
Further, polarization optical face has micro-structure face, and each micro-structure face has the plane of polarisation of same curvature.
Further, lens body is set as strip, and asymmetric setting in the axial direction, i.e. the first reflecting surface and second
The asymmetric setting of reflecting surface.
In order to achieve the above objectives, the utility model second aspect embodiment proposes a kind of LED blackboard lights, including LED light
Lens arrangement, LED light source and light source board；
LED light lens structure includes lens body, and lens body side is the first reflecting surface, and the first reflecting surface is TIR light
Face, the lens body other side are the second reflecting surface, and the second reflecting surface is hyperbola optical surface, hyperbola optical surface and TIR light
Face is opposite；
Lens body upper end is light-emitting surface, and light-emitting surface is polarization optical face；
Lens body lower end is the plane of incidence, and the plane of incidence is set as groove, and groove has bottom and positioned at the of two sides of the bottom
One side and the second side, the bottom of groove is TIR light face, opposite with polarization optical face, and the first side of groove is close to double
First side of curve optical surface, groove is sawtooth Microstructure Optics face, and the second side of groove is close to the first reflecting surface；
LED light source is arranged on light source board, and LED light source is placed in groove.
According to a kind of LED blackboard lights of the utility model embodiment, since lens body side is the first reflecting surface, first
Reflecting surface is TIR light face, and the lens body other side is the second reflecting surface, and the second reflecting surface is hyperbola optical surface；Lens sheet
Body upper end is light-emitting surface, and light-emitting surface is polarization optical face；Lens body lower end is the plane of incidence, and the plane of incidence is set as groove, groove
Bottom be TIR light face, the first side of groove is close to hyperbola optical surface, for sawtooth Microstructure Optics face.
LED light source is placed in groove, and bottom and first reflecting surface of some light through groove that LED light source issues form small
Angle parallel light forms light beam of polarized light using the polarization optical face of lens body upper end, among this some light directive blackboard
Region；The sawtooth Microstructure Optics face for first side of some light through groove that LED light source issues and pair of the second reflecting surface
Curve optical surface is emitted using the polarization optical face of lens body upper end, this some light makes up the photograph of blackboard peripheral regions
Degree.Therefore, the light that LED light source issues is uniformly and efficient after lens.
In addition, can also be had following additional according to a kind of LED blackboard lights that the utility model above-described embodiment proposes
Technical characteristic:
Further, multiple LED light sources are set on light source board, and multiple LED light sources are in the same plane and arranged in a straight line, often
One LED light source is uniformly arranged on light source board and is located in groove.
Further, hyperbola optical surface is 1/4 hyperbola.
Further, polarization optical face has micro-structure face, and each micro-structure face has the plane of polarisation of same curvature.
Further, lens body is set as strip, and asymmetric setting in the axial direction, i.e. the first reflecting surface and second
The asymmetric setting of reflecting surface.
Detailed description of the invention
Fig. 1 is prior art reflector scheme schematic diagram；
Fig. 2 is the luminous schematic diagram of prior art LED wide-angle；
Fig. 3 is the luminous schematic diagram of another prior art LED wide-angle；
Fig. 4 is the structural schematic diagram according to the utility model embodiment；
Fig. 5 is the sectional view according to the utility model embodiment；
Fig. 6 is the plane of polarisation structural schematic diagram according to the utility model embodiment；
Fig. 7 is the light schematic diagram according to the utility model embodiment.
Label declaration
10 LED light 20 of reflector
1 first reflecting surface 11 of lens body
Second reflecting surface, 12 light-emitting surface 13
14 groove 141 of the plane of incidence
1,411 first side 1412 of bottom
Second side, 1413 LED light source 2
Light source board 3.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
As shown in Figures 4 to 7, a kind of LED light lens structure of the utility model embodiment, including lens body 1, lens
1 side of ontology is the first reflecting surface 11, and the first reflecting surface 11 is TIR light face, and 1 other side of lens body is the second reflecting surface
12, the second reflecting surface 12 is hyperbola optical surface, and hyperbola optical surface is opposite with TIR light face.
1 upper end of lens body is light-emitting surface 13, and light-emitting surface 13 is polarization optical face.
1 lower end of lens body is the plane of incidence 14, and the plane of incidence 14 is set as groove 141, and groove 141 has bottom 1411 and position
In the first side 1412 and the second side 1413 of 1411 two sides of bottom, the bottom 1411 of groove 141 is TIR light face, groove
141 bottom 1411 is opposite with polarization optical face, the first side 1412 of groove 141 close to hyperbola optical surface, groove 141
First side 1412 is sawtooth Microstructure Optics face, and the second side 1413 of groove 141 is close to the first reflecting surface 11.
Since 1 side of lens body is the first reflecting surface 11, the first reflecting surface 11 is TIR light face, and lens body 1 is another
Side is the second reflecting surface 12, and the second reflecting surface 12 is hyperbola optical surface；1 upper end of lens body is light-emitting surface 13, light-emitting surface 13
For polarization optical face；1 lower end of lens body is the plane of incidence 14, and the plane of incidence 14 is set as groove 141, the bottom 1411 of groove 141
For TIR light face, the first side 1412 of groove 141 is sawtooth Microstructure Optics face close to hyperbola optical surface.
LED light source 2 is placed in groove 141, and some light that LED light source 2 issues is through the bottom 1411 of groove 141 and first
Reflecting surface 11 forms low-angle directional light, forms light beam of polarized light, this part light using the polarization optical face of 1 upper end of lens body
Line directive blackboard intermediate region；The sawtooth micro-structure for first side 1412 of some light through groove 141 that LED light source 2 issues
The hyperbola optical surface of optical surface and the second reflecting surface 12 is emitted, this part using the polarization optical face of 1 upper end of lens body
Light makes up the illumination of blackboard peripheral regions.Therefore, the light that LED light source 2 issues is uniformly and efficient after lens.
In some instances, the bottom 1411 of groove 141 is in protrusion arc.
In some instances, hyperbola optical surface is 1/4 hyperbola.
In some instances, polarization optical face has micro-structure face, and each micro-structure face has the plane of polarisation of same curvature,
And the polarization direction formed is towards blackboard.
In some instances, lens body 1 is set as strip, and asymmetric setting in the axial direction, i.e., the first reflection
Face 11 and the second reflection asymmetric setting in 12 faces.
The utility model embodiment also proposed a kind of LED blackboard lights, including LED light lens structure, LED light source 2 and light
Source plate 3.
LED light lens structure includes lens body 1, and 1 side of lens body is the first 11 faces of reflection, and the first reflecting surface 11 is
TIR light face, 1 other side of lens body are the second reflecting surface 12, and the second reflecting surface 12 is hyperbola optical surface, hyperbolic line optics
Face is opposite with TIR light face.
1 upper end of lens body is light-emitting surface 13, and light-emitting surface 13 is polarization optical face.
1 lower end of lens body is the plane of incidence 14, and the plane of incidence 14 is set as groove 141, and groove 141 has bottom 1411 and position
In the first side 1412 and the second side 1413 of 1411 two sides of bottom, the bottom 1411 of groove 141 is TIR light face, groove
141 bottom 1411 is opposite with polarization optical face, the first side 1412 of groove 141 close to hyperbola optical surface, groove 141
First side 1412 is sawtooth Microstructure Optics face, and the second side 1413 of groove 141 is close to the first reflecting surface 11.
LED light source 2 is arranged on light source board 3, and LED light source 2 is placed in groove 141.
In some instances, light source board 3 is arranged multiple LED light sources 2, and multiple LED light sources 2 are in the same plane and straight line
Arrangement, each LED light source 2 are uniformly arranged on light source board 3 and are located in groove 141.
In some instances, the bottom 1411 of groove 141 is in protrusion arc.
In some instances, hyperbola optical surface is 1/4 hyperbola.
In some instances, polarization optical face has micro-structure face, and each micro-structure face has the plane of polarisation of same curvature,
And the polarization direction formed is towards blackboard.
In some instances, lens body 1 is set as strip, and asymmetric setting in the axial direction, i.e., the first reflection
Face 11 and the asymmetric setting of the second reflecting surface 12.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable
The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the utility model and simplify description, rather than the device or element of indication or suggestion meaning there must be specific side
Position is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it
"lower" may include that the first and second features directly contact, and also may include that the first and second features are not direct contacts but lead to
Cross the other characterisation contact between them.Moreover, fisrt feature includes above the second feature " above ", " above " and " above "
One feature is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.First is special
Sign is directly below and diagonally below the second feature including fisrt feature under the second feature " below ", " below " and " below ", or only
Indicate that first feature horizontal height is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
Stating, which should not be construed as, must be directed to identical embodiment or example.Moreover, description specific features, structure, material or
Feature can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, those skilled in the art
Different embodiments or examples described in this specification can be engaged and be combined by member.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (9)
1. a kind of LED light lens structure, it is characterised in that: including lens body, lens body side is the first reflecting surface, first
Reflecting surface is TIR light face, and the lens body other side is the second reflecting surface, and the second reflecting surface is hyperbola optical surface, hyperbola
Optical surface is opposite with TIR light face；
Lens body upper end is light-emitting surface, and light-emitting surface is polarization optical face；
Lens body lower end is the plane of incidence, and the plane of incidence is set as groove, and groove has bottom and the first side positioned at two sides of the bottom
The bottom of portion and the second side, groove is TIR light face, and opposite with polarization optical face, the first side of groove is close to hyperbola
First side of optical surface, groove is sawtooth Microstructure Optics face, and the second side of groove is close to the first reflecting surface.
2. a kind of LED light lens structure as described in claim 1, it is characterised in that: hyperbola optical surface is 1/4 hyperbola.
3. a kind of LED light lens structure as described in claim 1, it is characterised in that: polarization optical face has micro-structure face, often
One micro-structure face has the plane of polarisation of same curvature.
4. a kind of LED light lens structure as described in claim 1, it is characterised in that: lens body is set as strip, and edge
The asymmetric setting of axis direction, i.e. the first reflecting surface and the asymmetric setting of the second reflecting surface.
5. a kind of LED blackboard lights, it is characterised in that: including LED light lens structure, LED light source and light source board；
LED light lens structure includes lens body, and lens body side is the first reflecting surface, and the first reflecting surface is TIR light face,
The lens body other side is the second reflecting surface, and the second reflecting surface is hyperbola optical surface, hyperbola optical surface and TIR light face phase
It is right；
Lens body upper end is light-emitting surface, and light-emitting surface is polarization optical face；
Lens body lower end is the plane of incidence, and the plane of incidence is set as groove, and groove has bottom and the first side positioned at two sides of the bottom
The bottom of portion and the second side, groove is TIR light face, and opposite with polarization optical face, the first side of groove is close to hyperbola
First side of optical surface, groove is sawtooth Microstructure Optics face, and the second side of groove is close to the first reflecting surface；
LED light source is arranged on light source board, and LED light source is placed in groove.
6. a kind of LED blackboard lights as claimed in claim 5, it is characterised in that: multiple LED light sources are set on light source board, it is multiple
LED light source is in the same plane and arranged in a straight line, and each LED light source is uniformly arranged on light source board and is located in groove.
7. a kind of LED blackboard lights as claimed in claim 5, it is characterised in that: hyperbola optical surface is 1/4 hyperbola.
8. a kind of LED blackboard lights as claimed in claim 5, it is characterised in that: polarization optical face has micro-structure face, Mei Yiwei
Structural plane has the plane of polarisation of same curvature.
9. a kind of LED blackboard lights as claimed in claim 5, it is characterised in that: lens body is set as strip, and along axis
The asymmetric setting in direction, i.e. the first reflecting surface and the asymmetric setting of the second reflecting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920162160.4U CN209229640U (en) | 2019-01-30 | 2019-01-30 | A kind of LED light lens structure and LED blackboard lights |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920162160.4U CN209229640U (en) | 2019-01-30 | 2019-01-30 | A kind of LED light lens structure and LED blackboard lights |
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| Publication Number | Publication Date |
|---|---|
| CN209229640U true CN209229640U (en) | 2019-08-09 |
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ID=67511092
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920162160.4U Active CN209229640U (en) | 2019-01-30 | 2019-01-30 | A kind of LED light lens structure and LED blackboard lights |
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| CN (1) | CN209229640U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578942A (en) * | 2019-01-30 | 2019-04-05 | 厦门通士达照明有限公司 | A kind of LED light lens structure and LED blackboard lights |
| CN113551201A (en) * | 2021-07-29 | 2021-10-26 | 南华机电(太仓)有限公司 | Light ray control method of lens, aviation obstruction light based on lens and electronic equipment |
-
2019
- 2019-01-30 CN CN201920162160.4U patent/CN209229640U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578942A (en) * | 2019-01-30 | 2019-04-05 | 厦门通士达照明有限公司 | A kind of LED light lens structure and LED blackboard lights |
| CN113551201A (en) * | 2021-07-29 | 2021-10-26 | 南华机电(太仓)有限公司 | Light ray control method of lens, aviation obstruction light based on lens and electronic equipment |
| CN113551201B (en) * | 2021-07-29 | 2023-06-30 | 南华机电(太仓)有限公司 | Lens light control method, lens-based aviation obstruction light and electronic equipment |
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