CN110056839A - A kind of secondary lens structure with reflecting effect - Google Patents
A kind of secondary lens structure with reflecting effect Download PDFInfo
- Publication number
- CN110056839A CN110056839A CN201910261377.5A CN201910261377A CN110056839A CN 110056839 A CN110056839 A CN 110056839A CN 201910261377 A CN201910261377 A CN 201910261377A CN 110056839 A CN110056839 A CN 110056839A
- Authority
- CN
- China
- Prior art keywords
- layer
- diffusing reflection
- reflection layer
- light source
- reflecting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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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
-
- 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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/12—Combinations of only three kinds of elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Abstract
The secondary lens structure with reflecting effect that the present invention relates to a kind of, upper diffusing reflection layer is oppositely arranged with light source, upper reflecting layer is distributed in the periphery of diffusing reflection layer, a part of light to make light source issue is projected by upper diffusing reflection layer, play the role of expanding light angle of emergence, another part light that light source issues turns back after reaching upper reflecting layer through first reflection, it reaches later and projects lens body after the second secondary reflection set on the lower reflecting layer of first surface, make another part light for reaching reflecting layer after secondary reflection, injection angle is also increased, and then the overall light injection angle of light source and injection uniformity is made to be increased dramatically.
Description
Technical field
The present invention relates to photoelectric field more particularly to a kind of secondary lens structures with reflecting effect.
Background technique
As LED display technology is more and more mature, subdivided product also becomes more and more, straight-down negative LED display screen
It is one of which, the backlight of straight-down negative LED display can equably reach display screen, and picture detail is more fine and smooth true to nature.
But straight-down negative LED display is also faced with problems, one of major defect be compared with side entering type LED display,
Thickness is larger.But existing tradition LED beam angle is smaller, is not suitable for doing ultrathin direct-light type LED backlight.
Summary of the invention
The technical problems to be solved by the present invention are: a kind of secondary lens structure with reflecting effect is provided, to be promoted
The injection angle and injection uniformity of light source.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows:
A kind of secondary lens structure with reflecting effect, including lens body, lower reflecting layer, light source, upper diffusing reflection layer
With upper reflecting layer, the first surface of the lens body is equipped with the lower reflecting layer, and the light source is set to lens body and lower anti-
It penetrates between layer, the upper diffusing reflection layer and upper reflecting layer are set to second surface opposite with first surface on lens body, institute
It states diffusing reflection layer to be oppositely arranged with light source, the upper reflecting layer is distributed in the periphery of diffusing reflection layer.
The beneficial effects of the present invention are: upper diffusing reflection layer is oppositely arranged with light source, and upper reflecting layer is distributed in diffusing reflection
The periphery of layer plays the work for expanding light angle of emergence so that a part of light for issuing light source is projected by upper diffusing reflection layer
With another part light that light source issues turns back after reaching upper reflecting layer through first reflection, reaches be set to first surface later
Lower reflecting layer project lens body after the second secondary reflection, make to reach another part light in reflecting layer by secondary counter
After penetrating, injection angle is also increased, and then mentions the overall light injection angle of light source and injection uniformity substantially
It rises.
Detailed description of the invention
Fig. 1 show the cross-sectional view of the secondary lens structure with reflecting effect of the embodiment of the present invention one；
Fig. 2 show the cross-sectional view of the secondary lens structure with reflecting effect of the embodiment of the present invention two；
Label declaration:
1, lens body；2, lower reflecting layer；3, light source；4, upper diffusing reflection layer；5, upper reflecting layer；
6, protrusion；7, lower diffusing reflection layer；8, groove；9, interior diffusing reflection layer.
Specific embodiment
To explain the technical content, the achieved purpose and the effect of the present invention in detail, below in conjunction with embodiment and cooperate attached
Figure is explained.
The most critical design of the present invention is: the first surface of lens body 1 is equipped with the lower reflecting layer 2, upper diffusing reflection
Layer 4 and upper reflecting layer 5 are set to second surface opposite with first surface on lens body 1, project the overall light of light source 3
Angle and injection uniformity are increased dramatically.
It please refers to shown in Fig. 1 to Fig. 2, a kind of secondary lens structure with reflecting effect provided by the invention, including saturating
The first surface in mirror main body 1, lower reflecting layer 2, light source 3, upper diffusing reflection layer 4 and upper reflecting layer 5, the lens body 1 is equipped with institute
Lower reflecting layer 2 is stated, the light source 3 is set between lens body 1 and lower reflecting layer 2, the upper diffusing reflection layer 4 and upper reflecting layer 5
It is set to second surface opposite with first surface on lens body 1, the upper diffusing reflection layer 4 is oppositely arranged with light source 3, described
Upper reflecting layer 5 is distributed in the periphery of diffusing reflection layer 4.
As can be seen from the above description, upper diffusing reflection layer 4 is oppositely arranged with light source 3, upper reflecting layer 5 is distributed in diffusing reflection layer 4
Periphery, thus make light source 3 issue a part of light by upper diffusing reflection layer 4 project, play expansion light angle of emergence work
With another part light that light source 3 issues turns back after reaching upper reflecting layer 5 through first reflection, reaches be set to the first table later
Lens body 1 is projected in the lower reflecting layer 2 in face after the second secondary reflection, passes through another part light for reaching reflecting layer 5
After secondary reflection, injection angle is also increased, and then obtains the overall light injection angle of light source 3 and injection uniformity
It is substantially improved.
Further, the part that the second surface is equipped with upper diffusing reflection layer 4 has protrusion 6, and the protrusion 6 wraps
Column side and the evagination curved end for being connected to column side are included, the upper diffusing reflection layer 4 is respectively coated by the column side
On face and evagination curved end.
As can be seen from the above description, upper diffusing reflection layer 4 is respectively coated by the column side and evagination curved end, make to reach
A part into the light of diffusing reflection layer is totally reflected, and is projected again from lens body 1 after the reflection of lower reflecting layer 2, so that
A part in the middle part light of light source 3 is dispersed around after secondary reflection, further improves the overall light of light source 3
Injection angle and injection uniformity are equal.
It further, further include lower diffusing reflection layer 7, the lower diffusing reflection layer 7 is set to the first surface and lower reflecting layer 2
Between, the light source 3 is set between lens body 1 and lower diffusing reflection layer 7.
As can be seen from the above description, being reached again after first passing through lower diffusing reflection layer 7 via the light that the reflection of upper reflecting layer 5 is turned back
Lower reflecting layer 2 so that the incidence angle for reaching the light in lower reflecting layer 2 is increased, and then makes the overall light angle of emergence of light source 3
Degree and injection uniformity are further promoted.
Further, the first surface of the lens body 1 is equipped with groove 8, and the light source 3 is located at the groove 8
It is internal.
Further, the inner surface of the groove 8 is arc surface or tapered surface.
As can be seen from the above description, the inner surface of groove 8 is arc surface or tapered surface, the light for being able to ascend light source 3 is projected
Uniformity.
Further, the inner surface of the groove 8 is coated with interior diffusing reflection layer 9.
As can be seen from the above description, the inner surface of groove 8 is coated with interior diffusing reflection layer 9, the entirety of light source 3 is improved again
Light injection angle and injection uniformity.
Further, the first surface and second surface are circular flat, and the lens body 1 further includes connection
The outer arcuate side of one surface periphery and second surface periphery.
As can be seen from the above description, first surface and second surface are circular flat, lens body 1 further includes connection first
The outer arcuate side of surface periphery and second surface periphery, has good structural symmetry, and is conducive to the uniform of light injection
Property.
Further, the upper diffusing reflection layer 4 is rounded, the upper reflecting layer 5 in a ring, and the internal diameter in upper reflecting layer 5
Equal to the outer diameter of upper diffusing reflection layer 4.
Further, the light source 3 is LED light.
Further, the material of the lens body 1 is PMMA or PC.
As can be seen from the above description, the material of lens body 1 is PMMA or PC, there is more preferably translucent effect.
It please refers to shown in Fig. 1 to Fig. 2, the embodiment of the present invention one are as follows:
A kind of secondary lens structure with reflecting effect, including lens body 1, lower reflecting layer 2, lower diffusing reflection layer 7, light
Source 3, upper diffusing reflection layer 4 and upper reflecting layer 5, the material of the lens body 1 are PMMA or PC, the first of the lens body 1
Surface is equipped with the lower reflecting layer 2, and the lower diffusing reflection layer 7 is set between the first surface and lower reflecting layer 2, the light source
3 are set between lens body 1 and lower reflecting layer 2, and the first surface of the lens body 1 is equipped with groove 8, the groove 8
Inner surface is arc surface, and the light source 3 is the inside that LED light and light source 3 are located at the groove 8, the upper diffusing reflection layer 4 and upper
Reflecting layer 5 is set to second surface opposite with first surface on lens body 1, and the first surface and second surface are circle
Shape plane, the lens body 1 further include the outer arcuate side for connecting first surface periphery and second surface periphery, described unrestrained
Reflecting layer 4 is oppositely arranged with light source 3, and in a ring, the upper reflecting layer 5 is distributed in the week of diffusing reflection layer 4 in the upper reflecting layer 5
Edge, the part that the second surface is equipped with upper diffusing reflection layer 4 have protrusion 6, and the protrusion 6 includes column side and company
It is connected to the evagination curved end of column side, the upper diffusing reflection layer 4 is respectively coated by the column side and evagination arc end
On face.
The embodiment of the present invention two are as follows:
A kind of secondary lens structure with reflecting effect, with embodiment one the difference is that: the groove 8 it is interior
Surface is tapered surface, and the inner surface of groove 8 is coated with interior diffusing reflection layer 9.
In conclusion a kind of secondary lens structure with reflecting effect provided by the invention, upper diffusing reflection layer 4 and light
Source 3 is oppositely arranged, and upper reflecting layer 5 is distributed in the periphery of diffusing reflection layer 4, so that a part of light for issuing light source 3 passes through
Upper diffusing reflection layer 4 projects, and plays the role of expanding light angle of emergence, another part light that light source 3 issues reaches upper reflecting layer
It turns back after 5 through first reflection, reaches project lens body after the second secondary reflection set on the lower reflecting layer 2 of first surface later
1, make another part light for reaching reflecting layer 5 after secondary reflection, injection angle is also increased, and then makes light source
3 overall light injection angle and injection uniformity is increased dramatically.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalents made by bright specification and accompanying drawing content are applied directly or indirectly in relevant technical field, similarly include
In scope of patent protection of the invention.
Claims (10)
1. a kind of secondary lens structure with reflecting effect, it is characterised in that: including lens body, lower reflecting layer, light source, on
Diffusing reflection layer and upper reflecting layer, the first surface of the lens body are equipped with the lower reflecting layer, and the light source is set to lens master
Between body and lower reflecting layer, the upper diffusing reflection layer and upper reflecting layer are set to opposite with first surface second on lens body
Surface, the upper diffusing reflection layer are oppositely arranged with light source, and the upper reflecting layer is distributed in the periphery of diffusing reflection layer.
2. the secondary lens structure according to claim 1 with reflecting effect, it is characterised in that: on the second surface
Part equipped with upper diffusing reflection layer has protrusion, and the protrusion includes column side and the outer convex arc for being connected to column side
Shape end face, the upper diffusing reflection layer are respectively coated by the column side and evagination curved end.
3. the secondary lens structure according to claim 1 with reflecting effect, it is characterised in that: further include lower diffusing reflection
Layer, the lower diffusing reflection layer is set between the first surface and lower reflecting layer, and the light source is set to lens body and overflows instead with lower
It penetrates between layer.
4. the secondary lens structure according to claim 1 with reflecting effect, it is characterised in that: the lens body
First surface is equipped with groove, and the light source is located at the inside of the groove.
5. the secondary lens structure according to claim 4 with reflecting effect, it is characterised in that: the interior table of the groove
Face is arc surface or tapered surface.
6. the secondary lens structure according to claim 4 with reflecting effect, it is characterised in that: the interior table of the groove
Bread is covered with interior diffusing reflection layer.
7. the secondary lens structure according to claim 1 with reflecting effect, it is characterised in that: the first surface and
Second surface is circular flat, and the lens body further includes the outer arcuate for connecting first surface periphery and second surface periphery
Side.
8. the secondary lens structure according to claim 1 with reflecting effect, it is characterised in that: the upper diffusing reflection layer
It is rounded, the upper reflecting layer in a ring, and the internal diameter in upper reflecting layer be equal to upper diffusing reflection layer outer diameter.
9. the secondary lens structure according to claim 1 with reflecting effect, it is characterised in that: the light source is LED
Lamp.
10. the secondary lens structure according to claim 1 with reflecting effect, it is characterised in that: the lens body
Material be PMMA or PC.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910261377.5A CN110056839B (en) | 2019-04-02 | 2019-04-02 | Secondary lens structure with reflection effect |
| CN202011612994.4A CN112833367B (en) | 2019-04-02 | 2019-04-02 | Secondary lens structure with wide light ray emitting angle |
| CN202011612999.7A CN112781011B (en) | 2019-04-02 | 2019-04-02 | Secondary lens structure with uniform emergent light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910261377.5A CN110056839B (en) | 2019-04-02 | 2019-04-02 | Secondary lens structure with reflection effect |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011612999.7A Division CN112781011B (en) | 2019-04-02 | 2019-04-02 | Secondary lens structure with uniform emergent light |
| CN202011612994.4A Division CN112833367B (en) | 2019-04-02 | 2019-04-02 | Secondary lens structure with wide light ray emitting angle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110056839A true CN110056839A (en) | 2019-07-26 |
| CN110056839B CN110056839B (en) | 2021-03-09 |
Family
ID=67318195
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910261377.5A Active CN110056839B (en) | 2019-04-02 | 2019-04-02 | Secondary lens structure with reflection effect |
| CN202011612994.4A Active CN112833367B (en) | 2019-04-02 | 2019-04-02 | Secondary lens structure with wide light ray emitting angle |
| CN202011612999.7A Active CN112781011B (en) | 2019-04-02 | 2019-04-02 | Secondary lens structure with uniform emergent light |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011612994.4A Active CN112833367B (en) | 2019-04-02 | 2019-04-02 | Secondary lens structure with wide light ray emitting angle |
| CN202011612999.7A Active CN112781011B (en) | 2019-04-02 | 2019-04-02 | Secondary lens structure with uniform emergent light |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN110056839B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112781011A (en) * | 2019-04-02 | 2021-05-11 | 福建华佳彩有限公司 | Secondary lens structure with uniform emergent light |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN112781011B (en) | 2022-05-10 |
| CN112833367A (en) | 2021-05-25 |
| CN112833367B (en) | 2022-08-09 |
| CN112781011A (en) | 2021-05-11 |
| CN110056839B (en) | 2021-03-09 |
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