CN108445564A - A kind of anti-dazzle tabula rasa with non-rectilinear corner angle cone micro-structure - Google Patents
A kind of anti-dazzle tabula rasa with non-rectilinear corner angle cone micro-structure Download PDFInfo
- Publication number
- CN108445564A CN108445564A CN201810474541.6A CN201810474541A CN108445564A CN 108445564 A CN108445564 A CN 108445564A CN 201810474541 A CN201810474541 A CN 201810474541A CN 108445564 A CN108445564 A CN 108445564A
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- CN
- China
- Prior art keywords
- tabula rasa
- pyramid
- dazzle tabula
- rectilinear
- micro
- 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.)
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
- G02B5/0231—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having microprismatic or micropyramidal 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
- F21V5/00—Refractors for light sources
- F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
- F21V5/005—Refractors for light sources using microoptical elements for redirecting or diffusing light using microprisms
Abstract
The invention discloses a kind of anti-dazzle tabula rasa for boring micro-structure with non-rectilinear corner angle, including anti-dazzle tabula rasa ontology and the pyramid micro-structure that is set on anti-dazzle tabula rasa ontology, the rib of the pyramid is non-rectilinear rib, and the non-rectilinear rib is in inner concavity.A kind of anti-dazzle tabula rasa with non-rectilinear corner angle cone micro-structure of the present invention, is provided with different base angles, the larger positive rectangular pyramid in base angle can reduce UGR values, meet requirement of the lighting device to UGR values in the same pyramid micro-structure；The smaller positive rectangular pyramid in base angle may make the reduction of light efficiency to minimize, and can meet requirement of the lighting device to light efficiency.Can both the reduction of light efficiency be minimized by being equipped with the lighting device of the anti-dazzle tabula rasa, and will be maximized by the fabric of light radiation, while remain to meet UGR standards.
Description
Technical field
The present invention relates to lighting technical field, especially a kind of anti-dazzle tabula rasa with non-rectilinear corner angle cone micro-structure.
Background technology
Studies have shown that the side base angle of pyramidal structure is bigger in anti-dazzle tabula rasa, then there is the direction quilt of more light earthward
Refraction, the light of wide-angle are refracted, and UGR values reduce.However, quadrangular pyramid base angle forms range will produce secondary lobe in certain section
Sidelight leakage phenomenon, when quadrangular pyramid base angle is bigger, light back to light incoming direction on recirculation phenomenon increase, generate
More reflections, cause light efficiency to reduce.When quadrangular pyramid base angle is too big, meet UGR conditions, but light efficiency reduces.In addition, working as quadrangle
When cone base angle is too small, the reduction of light efficiency is minimized, but cannot meet UGR conditions.As described above, in order to reduce UGR values, such as
Fruit quadrangular pyramid base angle is too big, then light efficiency reduces.Moreover, also reducing by the area of light radiation, i.e. light-emitting area.In the situation
Under, more lighting devices are needed to illuminate identical region.I.e. under normal conditions, quadrangular pyramid base angle is bigger, then UGR values drop
It is low, but light efficiency also reduces and (makes comparisons, be less than 90%) with diffuser plate.Therefore, it should the angle-determining by quadrangular pyramid base angle is,
The reduction of light efficiency can be minimized, and will be maximized by the area of light radiation, while still meet UGR standards.
Invention content
The object of the present invention is to provide a kind of anti-dazzle tabula rasas for boring micro-structure with non-rectilinear corner angle, can be by the drop of light efficiency
Low minimum, and will be maximized by the area of light radiation, while still meeting UGR standards.
In order to solve the above technical problems, the object of the present invention is achieved like this：
The anti-dazzle tabula rasa of micro-structure is bored with non-rectilinear corner angle the present invention relates to a kind of, including anti-dazzle tabula rasa ontology and is set
The rib of the pyramid micro-structure being placed on anti-dazzle tabula rasa ontology, the pyramid is non-rectilinear rib, and the non-rectilinear rib is in inner concavity.
As a further illustration of the above scheme, the non-rectilinear rib is broken line.
As a further illustration of the above scheme, the non-rectilinear rib is curve.
As a further illustration of the above scheme, the pyramid is positive quadrangular pyramid.
The beneficial effects of the invention are as follows：The present invention relates to it is a kind of with non-rectilinear corner angle bore micro-structure anti-dazzle tabula rasa,
Different base angles are provided in the same pyramid micro-structure, the larger positive rectangular pyramid in base angle can reduce UGR values, meet lighting device pair
The requirement of UGR values；The smaller positive rectangular pyramid in base angle may make the reduction of light efficiency to minimize, and can meet lighting device and be wanted to light efficiency
It asks.Can both the reduction of light efficiency be minimized by being equipped with the lighting device of the anti-dazzle tabula rasa, and by by the fabric of light radiation most
Bigization, while remaining to meet UGR standards.
Description of the drawings
Fig. 1 is the quadrangular pyramid anti-dazzle micro-structure sectional view of embodiment one；
Fig. 2 is the quadrangular pyramid anti-dazzle micro-structure light refraction schematic diagram of embodiment one；
Fig. 3 is the quadrangular pyramid anti-dazzle micro-structure schematic diagram of embodiment two.
Specific implementation mode
Present invention will be further explained below with reference to the attached drawings and specific examples.
It is according to the present invention it is a kind of with non-rectilinear corner angle cone micro-structure anti-dazzle tabula rasa, including anti-dazzle tabula rasa ontology with
And it is set to the pyramid micro-structure on anti-dazzle tabula rasa ontology.The rib of pyramid is the non-rectilinear rib in inner concavity.Non-rectilinear rib can make
The inclined-plane for obtaining pyramid is different from the angle of bottom surface on different height, and the shape of inner concavity may make the angle with bottom surface with height
The rising straight angle of degree is bigger.Base angle can reduce UGR values when larger, meet requirement of the lighting device to UGR values；It base angle can when smaller
So that the reduction of light efficiency minimizes, requirement of the lighting device to light efficiency can be met.The bottom surface of pyramid is regular quadrangle in the present invention.
Embodiment one
Involved a kind of anti-dazzle tabula rasa with non-rectilinear corner angle cone micro-structure in the present embodiment, including anti-dazzle tabula rasa sheet
Body and the pyramid micro-structure being set on anti-dazzle tabula rasa ontology.The rib of pyramid is the non-rectilinear rib in inner concavity, is broken line, by
Set the line segment composition of quantity, the quantity of the present embodiment line segment 5, the residing frustum of a pyramid formed of the line segment of lower section four, the top
One line segment forms a pyramid, and the two neighboring frustum of a pyramid or pyramid have common face, and height having the same.It is above-mentioned
The base angle of four frustum of a pyramids and a pyramid is respectively 25 °, 27.5 °, 30 °, 32.5 °, 35 °.I.e. involved by the present embodiment
Anti-dazzle tabula rasa has five different base angles.Base angle is the angle on pyramid or frustum of a pyramid inclined-plane and bottom surface.
Embodiment two
A kind of anti-dazzle tabula rasa with non-rectilinear corner angle cone micro-structure involved by the present embodiment, including anti-dazzle tabula rasa ontology
And it is set to the pyramid micro-structure on anti-dazzle tabula rasa ontology.The rib of pyramid is the non-rectilinear rib in inner concavity, is a curve.
Using quadrangular pyramid bottom center as origin, the quadrangular pyramid length of side is L, is highly H, by the parabola letter of quadrangular pyramid curved surface
Number：Y=-4H/L2, four curved surfaces symmetrically intercept.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without
It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be in the protection domain being defined in the patent claims.
Claims (4)
1. a kind of anti-dazzle tabula rasa with non-rectilinear corner angle cone micro-structure, which is characterized in that including anti-dazzle tabula rasa ontology and set
The rib of the pyramid micro-structure being placed on anti-dazzle tabula rasa ontology, the pyramid is non-rectilinear rib, and the non-rectilinear rib is in inner concavity.
2. the anti-dazzle tabula rasa as described in claim 1 with non-rectilinear corner angle cone micro-structure, which is characterized in that described is non-straight
Line rib is broken line.
3. the anti-dazzle tabula rasa as described in claim 1 with non-rectilinear corner angle cone micro-structure, which is characterized in that described is non-straight
Line rib is curve.
4. the anti-dazzle tabula rasa as described in claim 1 with non-rectilinear corner angle cone micro-structure, which is characterized in that the pyramid
For positive quadrangular pyramid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810474541.6A CN108445564A (en) | 2018-05-17 | 2018-05-17 | A kind of anti-dazzle tabula rasa with non-rectilinear corner angle cone micro-structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810474541.6A CN108445564A (en) | 2018-05-17 | 2018-05-17 | A kind of anti-dazzle tabula rasa with non-rectilinear corner angle cone micro-structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108445564A true CN108445564A (en) | 2018-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810474541.6A Pending CN108445564A (en) | 2018-05-17 | 2018-05-17 | A kind of anti-dazzle tabula rasa with non-rectilinear corner angle cone micro-structure |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002023154A (en) * | 2000-07-03 | 2002-01-23 | Sharp Corp | Liquid crystal display device |
| CN102066987A (en) * | 2008-09-17 | 2011-05-18 | 夏普株式会社 | Antireflection film and method for manufacturing same |
| CN208334688U (en) * | 2018-05-17 | 2019-01-04 | 浙江彩丞照明科技有限公司 | A kind of anti-dazzle tabula rasa with non-rectilinear corner angle cone micro-structure |
-
2018
- 2018-05-17 CN CN201810474541.6A patent/CN108445564A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002023154A (en) * | 2000-07-03 | 2002-01-23 | Sharp Corp | Liquid crystal display device |
| CN102066987A (en) * | 2008-09-17 | 2011-05-18 | 夏普株式会社 | Antireflection film and method for manufacturing same |
| CN208334688U (en) * | 2018-05-17 | 2019-01-04 | 浙江彩丞照明科技有限公司 | A kind of anti-dazzle tabula rasa with non-rectilinear corner angle cone micro-structure |
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