CN108253380A - A kind of optical element and the lighting device with the optical element - Google Patents
A kind of optical element and the lighting device with the optical element Download PDFInfo
- Publication number
- CN108253380A CN108253380A CN201611231196.0A CN201611231196A CN108253380A CN 108253380 A CN108253380 A CN 108253380A CN 201611231196 A CN201611231196 A CN 201611231196A CN 108253380 A CN108253380 A CN 108253380A
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- China
- Prior art keywords
- incidence surface
- optical element
- light source
- light
- sawtooth portion
- Prior art date
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- 230000003287 optical effect Effects 0.000 title claims abstract description 69
- 239000002245 particle Substances 0.000 claims description 18
- 238000002834 transmittance Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 8
- 239000011810 insulating material Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
- F21V5/045—Refractors for light sources of lens shape the lens having discontinuous faces, e.g. Fresnel lenses
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The present invention discloses a kind of optical element and lighting device, for handling the light that light source is sent out, including incidence surface and light-emitting surface, the light-emitting surface includes symmetrically arranged first cambered surface and the second cambered surface, the incidence surface includes symmetrically arranged first incidence surface and the second incidence surface, first incidence surface and the second incidence surface are respectively provided with micro-structure, the junction of first cambered surface and the second cambered surface forms recess, the incidence surface is connected with any one straight line, light-emitting surface and light source, the light-emitting surface is less than 2 millimeters to the distance of light source and the difference of the incidence surface to the distance of light source on the straight line.
Description
【Technical field】
The present invention relates to a kind of optical element and lighting device, a kind of especially lighting device with optical element.
【Background technology】
With the progress of lighting engineering, LED light is more and more widely used in various lighting environments.Ceiling lamp of the prior art
Or it is many all also with traditional fluorescent tube in advertising lamp box, light efficiency is low, and energy consumption is high.From the angle of replacement, LED light
Pipe can advantageously substitute the fluorescent tube inside ceiling lamp very much.But the limitation of the light distribution angle and light distribution shape due to fluorescent tube,
It cannot solve the problems, such as the dark space on ceiling lamp mask, it is difficult the dark fringe seen that can be formed on mask.
Therefore, in order to overcome drawbacks described above, it is necessary to provide a kind of improved optical element and lighting device.
【Invention content】
The purpose of the present invention is to provide a kind of optical elements.
To achieve these goals, the present invention adopts the following technical scheme that：A kind of optical element sends out for handling light source
Light, including incidence surface and light-emitting surface, the light-emitting surface include symmetrically arranged first cambered surface and the second cambered surface, it is described enter light
Face includes symmetrically arranged first incidence surface and the second incidence surface, and first incidence surface and the second incidence surface are respectively provided with micro- knot
The junction of structure, first cambered surface and the second cambered surface forms recess, with any one straight line connect the incidence surface, light-emitting surface and
Light source, the light-emitting surface is less than 2 millimeters to the distance of light source and the difference of the incidence surface to the distance of light source on the straight line.
Preferably, described incidence surface any point and the distance of the light source are more than 2 millimeters.
Preferably, the junction of first incidence surface and the second incidence surface also forms recess.
Preferably, first cambered surface and the second cambered surface are smooth surface.
Preferably, the micro-structure of first incidence surface and the second incidence surface is symmetric.
Preferably, the micro-structure of first incidence surface include be serrated the first sawtooth portion, the second sawtooth portion and
Between the first sawtooth portion, the second sawtooth portion, and smooth first for connecting the first sawtooth portion and the second sawtooth portion is flat
Cunning portion.
Preferably, the micro-structure of second incidence surface include be serrated third sawtooth portion, the 4th sawtooth portion and
Between the third sawtooth portion, the 4th sawtooth portion, and smooth second for connecting third sawtooth portion and the 4th sawtooth portion is flat
Cunning portion.
Preferably, the first sawtooth portion of first incidence surface connects the third sawtooth portion of second incidence surface, so as to
So that the junction of the first incidence surface and the second incidence surface has continuous saw tooth like microstructures.
Preferably, the junction of first incidence surface and the second incidence surface is smooth surface.
Preferably, the optical element is made of two kinds of different materials of light transmittance, and first incidence surface and second enters
The junction of the junction of smooth surface, first light-emitting surface and the second light-emitting surface is located at the center of optical element, light transmittance
It is lower than the light transmittance of optical element both sides.
Compared to the prior art, optical element of the present invention has the advantage that：Reduce the light intensity in centre, and formed uniform
Light distribution so that the light projected by the optical element is evenly distributed, without dark space.
The present invention also aims to provide a kind of lighting device.
To achieve these goals, the present invention adopts the following technical scheme that：A kind of lighting device, including above-mentioned optics member
Part, light source and with the integrally formed housing of the optical element, the light source is located at the optical element and the housing shape
Into accommodating space in.
Preferably, the housing is made of insulating materials.
Preferably, there is air groove, the light source includes light source board and LED between the light source and the optical element
Particle, the light source board are connect with the bottom of the housing.
Preferably, the both sides of the housing are respectively provided with mounting groove, and the both sides of the light source board are located in mounting groove respectively
So as to which light source board is fixed in the housing.
Preferably, all there is air groove between the light source and the optical element and the housing.
Preferably, the optical element has mounting groove with the housing junction, and the light source is installed on the installation
In slot.
Preferably, the housing both sides have the fixing groove of several fonts, and the fixing groove is recessed to the enclosure interior.
Preferably, the light source includes light source board and LED particle, and the LED particle is arranged in rows, the optical element
When the junction of first incidence surface and the second incidence surface is projected in the bottom surface of the housing with the LED particle, described first enters
The projection of the junction of smooth surface and the second incidence surface is at least partly overlapped with the projection of the LED particle.
Compared to the prior art, lighting device of the present invention has the advantage that：It is simple in structure, light distribution is uniform, without dark space.
【Description of the drawings】
Fig. 1 is the side view of the lighting device of the first preferred embodiment of the present invention.
Fig. 2 is the optical element of lighting device of the first preferred embodiment of the present invention and the stereogram of housing.
Fig. 3 is the side view of the lighting device of the second preferred embodiment of the present invention.
【Specific embodiment】
It please refers to shown in Fig. 1 and Fig. 2, a kind of optical element 10 of the first preferred embodiment of the invention is sent out for handling light source 30
The light gone out, including incidence surface 101 and light-emitting surface 102, light-emitting surface 102 includes symmetrically arranged first cambered surface, 1021 and second arc
Face 1022.Incidence surface 101 includes symmetrically arranged first incidence surface, 1011 and second incidence surface 1012.First incidence surface, 1011 He
Second incidence surface 1012 is respectively provided with the formation of junction 1023 recess of micro-structure, the first cambered surface 1021 and the second cambered surface 1022,
With any one straight line（It is not shown）Incidence surface 101, light-emitting surface 102 and light source 30 are connected, light-emitting surface 102 arrives light source 30 on straight line
The difference of distance and incidence surface 102 to the distance of light source is less than 2 millimeters.The present invention optical element 10 be an even light shield rather than
One lens, the optical element 10 by shape, micro-structure light source 30 light by optical element 10 after, light distribution
Uniformly, central part light intensity is unlikely to too strong so that other parts form blackening.
The junction 1013 of first incidence surface 1011 and the second incidence surface 1012 also forms recess.Incidence surface 101 and go out
Smooth surface 102 is substantially parallel.In other embodiment, the first incidence surface 1011 and 1012 junction 1013 of the second incidence surface can not also
Form recess.
In the present embodiment, 101 any point of incidence surface and the distance of light source 30 are more than 2 millimeters.In other embodiment, enter light
Face 101 and the distance of light source 30 can also adjust as needed.
First cambered surface 1021 and the second cambered surface 1022 are smooth surface.First incidence surface 1011 and the second incidence surface 1012
Micro-structure is symmetric.The micro-structure of first incidence surface 1011 includes the first sawtooth portion 10111 being serrated, the second sawtooth
Portion 10112 and between the first sawtooth portion 10111, the second sawtooth portion 10112, and connect the first sawtooth portion 10111 and the
The first smooth partes glabra 10113 in two sawtooth portions 10112.The micro-structure of second incidence surface 1012 includes the third being serrated
Sawtooth portion 10121, the 4th sawtooth portion 10122 and between third sawtooth portion 10121, the 4th sawtooth portion 10122, and connect
Third sawtooth portion 10121 and the second smooth partes glabra 10123 in the 4th sawtooth portion 10122.
First sawtooth portion 10111 of the first incidence surface 1011 connects the third sawtooth portion 10121 of the second incidence surface 1012, from
And cause the junction 1013 of the first incidence surface 1011 and the second incidence surface 1012 that there are continuous saw tooth like microstructures.Other realities
It applies in example, the junction 1013 of the first incidence surface 1011 and the second incidence surface 1012 or smooth surface are without micro- knot
Structure.
In the present embodiment, optical element 10 is made of identical material.In other embodiment, optical element 10 can also be by
Two kinds of different materials of light transmittance are made.Such as by the junction 1013 of the first incidence surface 1011 and the second incidence surface 1012,
The junction 1023 of one light-emitting surface 1021 and the second light-emitting surface 1022 is made of the relatively low material of light transmittance so that first enters
The junction of the junction 1013 of 1011 and second incidence surface 1012 of smooth surface, the first light-emitting surface 1021 and the second light-emitting surface 1022
1023 are located at 10 center of optical element, and light transmittance is lower than the light transmittance of 10 both sides of optical element.10 center of optical element it is saturating
Light rate is low to enable to central light strength further to weaken, so that light distribution is evenly.
The present embodiment also provides a kind of lighting device 1, including above-mentioned optical element 10, light source 30 and and optical element
10 integrally formed housings 20.Light source 30 is located in the accommodating space that optical element 10 is formed with housing 20.
In the present embodiment, housing 20 is made of insulating materials.In other embodiment, housing 20 can also be by metal material system
Into such optical element 10 and housing 20 separate molding and assemble again.
There is air groove 40 between light source 30 and optical element 10, light source 30 includes light source board 302 and LED particle 301,
Light source board 302 is connect with the bottom of housing 20.The both sides of housing 20 are respectively provided with mounting groove 201, the both sides difference of light source board 302
So as to which light source board 302 is fixed in housing 20 in mounting groove 201.LED particle 301 is arranged in rows, optical element 10
The junction 1013 of first incidence surface 1011 and the second incidence surface 1012 is projected in the bottom surface of housing 20 with LED light source particle 301
When 202, the projection of the junction 1013 of the first incidence surface 1011 and the second incidence surface 1012 and the projection of LED particle 301 are at least
It partially overlaps.
It please refers to shown in Fig. 3, a kind of optical element 50 of the second preferred embodiment of the invention sends out for handling light source 60
Light, including incidence surface 501 and light-emitting surface 502, light-emitting surface 502 include symmetrically arranged first cambered surface, 5021 and second cambered surface
5022.Incidence surface 501 includes symmetrically arranged first incidence surface, 5011 and second incidence surface 5012.First incidence surface 5011 and
Two incidence surfaces 5012 are respectively provided with the formation of junction 5023 recess of micro-structure, the first cambered surface 5021 and the second cambered surface 5022, use
Any one straight line（It is not shown）Connect incidence surface 501, light-emitting surface 502 and light source 60, on straight line light-emitting surface 502 to light source 60 away from
From and incidence surface 502 be less than 2 millimeters to the difference with a distance from light source.The junction of first incidence surface 5011 and the second incidence surface 5012
5013 also form recess.That is incidence surface 501 and light-emitting surface 502 is substantially parallel.In other embodiment, the first incidence surface 5011 and
Two incidence surfaces, 5012 junction 5013 can not also form recess.
In the present embodiment, 501 any point of incidence surface and the distance of light source 60 are more than 2 millimeters.In other embodiment, enter light
Face 501 and the distance of light source 60 can also adjust as needed.
First cambered surface 5021 and the second cambered surface 5022 are smooth surface.First incidence surface 5011 and the second incidence surface 5012
Micro-structure is symmetric.The micro-structure of first incidence surface 5011 includes being serrated, at least two groups of saws for having density different
Toothing（Non- label）.The junction 5013 of first incidence surface 5011 and the second incidence surface 5012 is smooth flat.
In the present embodiment, optical element 50 is made of two kinds of different materials of light transmittance.First incidence surface 5011 and second
The junction 5023 of the junction 5013 of incidence surface 5012, the first light-emitting surface 5021 and the second light-emitting surface 5022 is opposite with light transmittance
Relatively low material is made so that the junction 5013 of the first incidence surface 5011 and the second incidence surface 5012, the first light-emitting surface 5021
It is located at 50 center of optical element with the junction 5023 of the second light-emitting surface 5022, light transmittance is than the light transmission of 50 both sides of optical element
Rate is low.The light transmittance at 50 center of optical element is low to enable to central light strength further to weaken, so that light distribution is evenly.
The present embodiment also provides a kind of lighting device 8, including above-mentioned optical element 50, light source 60 and and optical element
50 integrally formed housings 70.Light source 60 is located in the accommodating space that optical element 50 is formed with housing 70.Optics member 50 with
70 junction of housing has mounting groove 80.11 source 60 of light is installed in mounting groove 80.
70 both sides of housing have the fixing groove 701 of several fonts, and fixing groove 701 is to 70 inner recess of housing.
Light source 60 includes light source board 601 and LED particle 602, and LED particle 602 is arranged in rows, and the first of optical element 50 enters
When the junction 5013 of 5011 and second incidence surface 5012 of smooth surface is projected in the bottom surface of housing 70 with LED particle 602, first enters light
The projection of the junction 5013 of 5011 and second incidence surface 5012 of face is at least partly overlapped with the projection of LED particle 602.
In the present embodiment, housing 70 is made of insulating materials.In other embodiment, housing 70 can also be by metal material system
Into such optical element 50 and housing 70 separate molding and assemble again.
All there is air groove 40 between light source 30 and optical element 10 and housing 20.
It should be noted that the embodiment of the present invention has preferable implementation, and not the present invention is made any type of
Limitation, any one skilled in the art change or are modified to possibly also with the technology contents of the disclosure above equivalent effective
Embodiment, as long as without departing from the content of technical solution of the present invention, what technical spirit according to the present invention made above example
Any modification or equivalent variations and modification, in the range of still falling within technical solution of the present invention.
Claims (19)
1. a kind of optical element, for handling the light that light source is sent out, including incidence surface and light-emitting surface, the light-emitting surface includes pair
Claim the first cambered surface and the second cambered surface of setting, the incidence surface includes symmetrically arranged first incidence surface and the second incidence surface, institute
It states the first incidence surface and the second incidence surface is respectively provided with micro-structure, the junction of first cambered surface and the second cambered surface forms recessed
It falls into, the incidence surface, light-emitting surface and light source is connected with any one straight line.
2. optical element as described in claim 1, it is characterised in that：On the straight line light-emitting surface to light source distance with
The difference of the incidence surface to the distance of light source is less than 2 millimeters.
3. optical element as described in claim 1, it is characterised in that：Described incidence surface any point and the distance of the light source
More than 2 millimeters.
4. optical element as described in claim 1, it is characterised in that：The junction of first incidence surface and the second incidence surface
Also recess is formed.
5. optical element as described in claim 1, it is characterised in that：First cambered surface and the second cambered surface are smooth surface.
6. optical element as described in claim 1, it is characterised in that：The micro-structure of first incidence surface and the second incidence surface
It is symmetric.
7. optical element as described in claim 1, it is characterised in that：The micro-structure of first incidence surface includes being serrated
The first sawtooth portion, the second sawtooth portion and between the first sawtooth portion, the second sawtooth portion, and connect the first sawtooth portion
With the first smooth partes glabra in the second sawtooth portion.
8. optical element as claimed in claim 7, it is characterised in that：The micro-structure of second incidence surface includes being serrated
Third sawtooth portion, the 4th sawtooth portion and between the third sawtooth portion, the 4th sawtooth portion, and connect third sawtooth portion
With the second smooth partes glabra in the 4th sawtooth portion.
9. optical element as claimed in claim 8, it is characterised in that：Described in the first sawtooth portion connection of first incidence surface
The third sawtooth portion of second incidence surface, so that the junction of the first incidence surface and the second incidence surface has continuous zigzag
Micro-structure.
10. optical element as described in claim 1, it is characterised in that：The connection of first incidence surface and the second incidence surface
Locate as smooth surface.
11. optical element as described in claim 1, it is characterised in that：The optical element is by the different material of two kinds of light transmittances
Material is made, the junction of the junction of first incidence surface and the second incidence surface, first light-emitting surface and the second light-emitting surface
Positioned at the center of optical element, light transmittance is lower than the light transmittance of optical element both sides.
12. a kind of lighting device, including described in any one in claim 1 to 11 optical element, light source and with it is described
The integrally formed housing of optical element, the light source are located in the accommodating space that the optical element is formed with the housing.
13. lighting device as claimed in claim 12, it is characterised in that：The housing is made of insulating materials.
14. lighting device as claimed in claim 12, it is characterised in that：There is sky between the light source and the optical element
Air drain, the light source include light source board and LED particle, and the light source board is connect with the bottom of the housing.
15. lighting device as claimed in claim 14, it is characterised in that：The both sides of the housing are respectively provided with mounting groove, institute
The both sides for stating light source board are located in mounting groove respectively so as to which light source board is fixed in the housing.
16. lighting device as claimed in claim 12, it is characterised in that：The light source and the optical element and the housing
Between all have air groove.
17. lighting device as claimed in claim 16, it is characterised in that：The optical element has with the housing junction
Mounting groove, the light source are installed in the mounting groove.
18. lighting device as claimed in claim 16, it is characterised in that：The housing both sides have the fixing groove of several fonts,
The fixing groove is recessed to the enclosure interior.
19. lighting device as claimed in claim 12, it is characterised in that：The light source includes light source board and LED particle, described
LED particle is arranged in rows, and the first incidence surface of the optical element and the junction of the second incidence surface are projected with the LED particle
At the bottom surface of the housing, the projection of the junction of first incidence surface and the second incidence surface and the throwing of the LED particle
Shadow at least partly overlaps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611231196.0A CN108253380A (en) | 2016-12-28 | 2016-12-28 | A kind of optical element and the lighting device with the optical element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611231196.0A CN108253380A (en) | 2016-12-28 | 2016-12-28 | A kind of optical element and the lighting device with the optical element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108253380A true CN108253380A (en) | 2018-07-06 |
Family
ID=62719438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611231196.0A Pending CN108253380A (en) | 2016-12-28 | 2016-12-28 | A kind of optical element and the lighting device with the optical element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108253380A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764303A (en) * | 2018-12-19 | 2019-05-17 | 深圳市九洲光电科技有限公司 | A kind of double lens LED light |
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