CN107013827A - Anti-dazzle lighting apparatus - Google Patents
Anti-dazzle lighting apparatus Download PDFInfo
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- CN107013827A CN107013827A CN201611245491.1A CN201611245491A CN107013827A CN 107013827 A CN107013827 A CN 107013827A CN 201611245491 A CN201611245491 A CN 201611245491A CN 107013827 A CN107013827 A CN 107013827A
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Classifications
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- 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
- F21V5/02—Refractors for light sources of prismatic shape
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention proposes a kind of anti-dazzle lighting apparatus, including light source layer, some LED lamp beads are provided with inside light source layer, light source layer is provided with lower layers of prisms, lower layers of prisms upper surface is provided with array prism bar structure, lower layers of prisms top is provided with upper layers of prisms, upper layers of prisms lower surface is provided with prism block, the downward projection of prism bar axial direction line and upper layers of prisms body longitudinal axis intersects to form sharp angle α, wherein 60 °≤α≤90 °, lower layers of prisms includes the prism bar on a bottom plate and bottom plate top, prism bar includes the first prism and the second prism, both are staggered to form pattern plane, isosceles trapezoid upper topside length is determined in each prism bar, bottom edge lengths do linear change, adjacent two bottom in same section is mutually compensated for.The present invention reduces the probability of light scattering, strengthens spotlight effect and reduces dazzle amount, human eye is in comfort conditions.
Description
Technical field
The present invention relates to lighting field, a kind of anti-dazzle lighting apparatus is particularly related to.
Background technology
During using optical device, such as light fixture, probably due to it is excessively dim or dazzling and cause the uncomfortable of human eye, it is this
The main cause of problem is not light source, but source outer be covered with refraction tabula rasa optically focused or refractive power effect it is poor.
" dazzle " is a kind of bad illumination phenomenon, when the brightness of light source is high or background and the luminance difference of central region
When larger, it will produce " dazzle ".Dazzle (Dazzle) refers in the visual field due to being not suitable for Luminance Distribution, or in space or time
On there is extreme brightness contrast so that cause vision it is uncomfortable and reduction object visibility visual condition.Produced in the visual field
The light that human eye can not be adapted to is felt, even detest, uncomfortable forfeiture legibility may be caused.In the visual field certain-local area
There is too high brightness or the excessive brightness change of front and rear generation.Dazzle is to cause one of major reason of visual fatigue.
Anti-dazzle is effectively to reduce this effect.Even if can also see clearly in the sun.How anti-dazzle optical illumination is produced
Equipment is that we need the direction of research.
The content of the invention
The present invention proposes a kind of anti-dazzle lighting apparatus, solves lighting apparatus light diverging in the prior art, easily production
The problem of raw dazzle.
The technical proposal of the invention is realized in this way：
It is provided with inside anti-dazzle lighting apparatus, including light source layer, the light source layer in some LED lamp beads, the light source layer
Provided with lower layers of prisms, the lower layers of prisms upper surface is provided with array prism bar structure, and the lower layers of prisms top is provided with upper prism
Layer, the upper layers of prisms lower surface is provided with prism block, and the prism block forms periodic undulations face, the same longitudinal axis along the body longitudinal axis
Wavy surface of the prism block along the formation periodic undulations of X direction array, the axial line of the prism bar and the upper layers of prisms body longitudinal axis
The downward projection of line intersects to form sharp angle α, wherein 60 °≤α≤90 °, and the lower layers of prisms includes a bottom plate and bottom plate top
Prism bar, the prism bar includes the first prism and the second prism, and both are staggered to form pattern plane, each prism bar
Section is isosceles trapezoid, and isosceles trapezoid upper topside length is determined in each prism bar, and bottom edge lengths do linear change, same section
Adjacent two bottom in face is mutually compensated for.
As the preferred scheme of the present invention, the lower layers of prisms material is optical glass, quartz glass, alkali halide
The first prism in one kind in crystal, the lower layers of prisms includes top surface on second, bottom surface and as or so two waists it is oblique
Face, top surface width is A on described second, and bottom surface width is B, high H, inclined-plane and bottom surface angle β；Pushed up on second prism
The high h of face width a, bottom surface width b, waist and the bottom surface of second prism are in that angle is δ.
As the preferred scheme of the present invention, wherein A is fixed value, and vertical central axis of the B along prism carry out continuous regular
Change, the bottom left and right ends of the first prism, downward projection two symmetrical regular frequency waves of formation, second rib
The prism of mirror one first is adjacent to fixation to be compensation, and the second prism bottom two ends are corresponding with adjacent first prism bottom to be overlapped.
As the preferred scheme of the present invention, the lower layers of prisms refractive index is m, 2≤m/sin β≤5；35°≤β≤55°；b
＞ a；1≤H/h≤2；1≤B/b≤3；1≤m/sin δ≤3, the adjacent waist angle angular range of two prisms bar two is 20 °~45 °,
In addition, 5 μm≤a≤0.5mm；10 μm≤A≤1mm, 7 μm≤b≤1mm；10μm≤B≤1.5mm.
As the preferred scheme of the present invention, the upper layers of prisms top is substrate, and the prism block passes through ultraviolet sealing
The substrate bottom is fixed on, the prism block is upwardly extends from substrate root, the frustum structure of formation, the prism block bag
Include top surface on first, the first left surface, the first right flank, the first leading flank and the first trailing flank.
As the preferred scheme of the present invention, top surface is the continuous rib using y-axis direction as axial relief in each prism block
Top surface formation discontinuous wavy surface on mirror block, layers of prisms side elevation obtains the wave with N number of fluctuating cycle, each prism block
Side inner side is provided with reflecting coating, and light top surface from prism block enters layers of prisms, is projected by reflecting from the substrate scope of freedom, institute
Prism block refractive index is stated for n, wherein 1≤n≤1.4.
As the preferred scheme of the present invention, each prism block root is the rectangle of formed objects, and the rectangle length is
O, width is P, wherein 20 μm≤O≤1mm, 10 μm≤P≤1mm, the average height of the prism block is Q, wherein 10 μm≤Q≤
1mm, wherein 20≤N/Q≤50.
As the preferred scheme of the present invention, first left surface and the second right flank are bilateral symmetry, described the
The right and left that top surface downward projection is shown on one is parallel with prism block left and right sides.
As the preferred scheme of the present invention, the base angle angle that first left surface and the first right flank are formed with bottom surface respectively
Spend and meet 2≤n/sin Θ≤5 for Θ, wherein Θ.
As the present invention preferred scheme, the prism block by polymethyl methacrylate, makrolon, polystyrene,
The material injection shaping of one or more of styrene-methylmethacrylate copolymer.
Beneficial effect：The present invention is proposed inside a kind of anti-dazzle lighting apparatus, including light source layer, light source layer provided with some
LED lamp bead, light source layer is provided with lower layers of prisms, and lower layers of prisms upper surface is provided with array prism bar structure, and lower layers of prisms top is set
There is upper layers of prisms, upper layers of prisms lower surface is provided with prism block, and the vertical view of prism bar axial direction line and upper layers of prisms body longitudinal axis is thrown
Shadow intersects to form sharp angle α, wherein 60 °≤α≤90 °, lower layers of prisms includes the prism bar on a bottom plate and bottom plate top, prism bar bag
The first prism and the second prism are included, both are staggered to form pattern plane, isosceles trapezoid upper topside length is true in each prism bar
Fixed, bottom edge lengths do linear change, and adjacent two bottom in same section is mutually compensated for.The present invention reduces the several of light scattering
Rate, strengthens spotlight effect and reduces dazzle amount, human eye is in comfort conditions.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is fractionation structural representation of the present invention；
Fig. 2 is upper layers of prisms structural representation shown in Fig. 1；
Fig. 3 is embodiment overlooking the structure diagram；
Fig. 4 is prism block main view section projection structure figure；
Fig. 5 is prism block side cross-sectional projection structure figure.
Fig. 6 is lower layers of prisms structural representation；
Fig. 7 is prism bar main view section projection structure figure.
In figure, upper layers of prisms 1, substrate 11, prism block 12, top surface 121, the first left surface 122, the first right flank on first
123rd, the first leading flank 124, the first trailing flank 125, lower layers of prisms 2, bottom plate 21, the first prism 22, the second prism 23, on second
Top surface 221, inclined-plane 222, bottom surface 223, light source layer 3.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, the scope of protection of the invention is belonged to.
As shown in figs. 1-7, anti-dazzle lighting apparatus, including light source layer 3, the inside of light source layer 3 are provided with some LED lamp beads, light
Active layer is provided with lower layers of prisms 2, and the lower upper surface of layers of prisms 2 is provided with array prism bar structure, and the lower top of layers of prisms 2 is provided with upper prism
Layer 1, the upper lower surface of layers of prisms 1 is provided with prism block 12, and prism block forms periodic undulations face, same longitudinal axis prism along the body longitudinal axis
Wavy surface of the block along the formation periodic undulations of X direction array, prism bar axial direction line is bowed with the upper body longitudinal axis of layers of prisms 1
Sharp angle α is intersected to form depending on projection, wherein 60 °≤α≤90 °, lower layers of prisms includes the prism bar on a bottom plate 21 and bottom plate top, rib
Mirror bar includes the first prism 22 and the second prism 23, and both are staggered to form pattern plane, and each prism bar section is isosceles ladder
Isosceles trapezoid upper topside length is determined in shape, each prism bar, and bottom edge lengths do linear change, same section adjacent two under
Base is mutually compensated for.
The lower material of layers of prisms 2 is in one kind in optical glass, quartz glass, alkali halide crystals, lower layers of prisms 2
The first prism 22 include top surface 221 on second, bottom surface 223 and as or so two waists inclined-plane 222, top surface 221 on second
Width is A, and the width of bottom surface 223 is B, high H, the inclined-plane 222 and angle β of bottom surface 223；Top surface width a on second prism 23, under
The high h of bottom width b, waist and the bottom surface of the second prism 23 are in that angle is δ.
Wherein A is fixed value, and vertical central axis of the B along prism carry out continuous regular change, the bottom of the first prism 22
Side left and right ends, downward projection two symmetrical regular frequency waves of formation, the prism 22 of the second prism (23) one first is benefit
The formula of repaying is adjacent to fixation, and the bottom two ends of the second prism 23 are corresponding with the adjacent bottom of first prism 22 to be overlapped.
The lower refractive index of layers of prisms 2 is m, 2≤m/sin β≤5；35°≤β≤55°；B ＞ a；1≤H/h ≤2；1≤B/b≤
3；1≤m/sin δ≤3, the adjacent waist angle angular range of two prisms bar two is 20 °~45 °, in addition, 5 μm≤a≤0.5mm；10μm
≤ A≤1mm, 7 μm≤b≤1mm；10μm≤B≤ 1.5mm.
The upper top of layers of prisms 1 is substrate 11, and prism block 12 is fixed on the bottom of substrate 11 by ultraviolet sealing, and prism block is
Upwardly extended from the root of substrate 11, the frustum structure of formation, prism block includes top surface 121, the first left surface 122, the on first
One right flank 123, the first leading flank 124 and the first trailing flank 125.
Top surface is the top surface formation discontinuous in continuous prism block using y-axis direction as axial relief in each prism block
Wavy surface, layers of prisms side elevation obtains the wave with N number of fluctuating cycle, and each prism block side inner side is applied provided with reflective
Layer, light enters layers of prisms from top surface in prism block 12, is projected by reflecting from the scope of freedom of substrate 11, and prism block refractive index is
N, wherein 1≤n≤1.4.
Each prism block root is the rectangle of formed objects, and rectangle length is O, and width is P, wherein 20 μm≤O≤1mm, 10
μm≤P≤1mm, the average height of prism block is Q, wherein 10 μm≤Q≤1mm, wherein 20≤N/Q≤50.
First left surface 122 and the second right flank 124 are that the downward projection of top surface 121 is shown on bilateral symmetry, first
The right and left it is parallel with prism block left and right sides.
The base angle angle that first left surface 122 and the first right flank 123 are formed with bottom surface respectively is Θ, and wherein Θ meets 2
≤n/sinΘ≤5。
Prism block is by polymethyl methacrylate, makrolon, polystyrene, styrene methyl methacrylate copolymerization
The material injection shaping of one or more of thing.
Embodiment 1
Such as the upper layers of prisms 1 in Fig. 2, bottom is transparent substrate 11, and thickness is 10 μm -100 μm.
Substrate is provided with the prism block 12 of N number of transverse and longitudinal array, and prism block 12 is that a frustum structure is formed from themselves bottom,
Adhesive layer between prism block and substrate is ultraviolet illuminaton adhesive layer.
The bottom of each prism block 12 is all the rectangle for the formed objects being brought into close contact, and the x-axis direction length of rectangle is in 20 μ
Between m to 1mm, preferably 20 μm, 40 μm, 60 μm, 80 μm, 100 μm, y axial extents at 10 μm between 1mm, preferably 1- μm,
20 μm, 30 μm, 40 μm, 50 μm；Z-axis average height is for 10 μm between 1mm, and each prism block 12 has four inclined-planes and one
Individual top surface, forms a diminishing frustum structure of area, and each prism block 12 includes top surface 121 on first, the first front side
Face 124, the first trailing flank 125, the first left surface 122, right flank.First leading flank 124, first the 125, first left side of trailing flank
The right flank of face 122 and first is provided with reflective membrane, and light can only enter layers of prisms by top surface 121 on first, then from transparent base
Plate opposite side is refracted out.
With spatial axes x-axis, on the basis of y-axis and z-axis, the prism block section in prism block xoz faces is an isosceles trapezoid, normal light
Beam top surface 121 on first enters, and is projected after refraction from substrate surface.
Still in the prism block section in xoz faces, two adjacent isosceles trapezoids are identical, two isosceles trapezoid adjacent side shapes
Into angle be Θ.Wherein the refractive index of prism is n, and the wherein refractive index of prism and base angle meets following condition：2≤n/sin
Θ≤5, wherein 1≤n≤1.4.
It is irregular structure in the prism block section in yoz faces, the first leading flank 124 and the first trailing flank 125 are distinguished
It is identical with the angle that bottom surface is formed.In the projection of yoz faces section, the angle that adjacent two prisms block junction is formed, i.e. front side prism
First trailing flank of block is identical with the angle of the first leading flank formation of rear side prism block, and angular range is between 15 ° to 30 °.
Top surface formation discontinuous rule change wave, limits chi in prism block section in yoz faces, continuous prism block
At least N number of wave rises and falls the cycle in very little layers of prisms.The heaving of the sea cycle is 20 to 45 times of prism block average height.
This prism block is common by polymethyl methacrylate, makrolon, polystyrene, styrene methyl methacrylate
The material injection shaping of one or more of polymers.
Embodiment 2
Such as the lower layers of prisms 2 in Fig. 6 Fig. 7, bottom is dianegative 21, and thickness is 50 μm -200 μm.
Prism is stained with bottom plate, mainly includes the first prism 12 and the second prism 13, the adhesive layer between prism and bottom plate
For ultraviolet illuminaton adhesive layer.
First prism is parallel with the second prism vertical central axis, array on the substrate, two first most close ribs
Provided with second prism 23 between mirror 22.Compensated mutually between the two neighboring prism 23 of first prism 22 and second.
The material of prism is optical glass, quartz glass, alkali halide (such as sodium bromide) crystal.
As shown in fig. 7, the first prism includes top surface 221, bottom surface 223 and inclined-plane 222 on second, the section of prism for etc.
Waist is trapezoidal, including upper bottom edge, bottom and two waists.Upper bottom edge length A, bottom edge lengths B, high H, waist and bottom angle β.
Wherein A is fixed value, and vertical central axis of the B along prism carry out continuous regular change, the bottom of the first prism
Left and right ends, downward projection two symmetrical regular frequency waves of formation.
The refractive index of first prism 22 is m, 2≤m/sin β≤5.Wherein m can be equal to 2*sin β, 2.5*sin β,
3*sin β, 3.5*sin β, 4*sin β or 4.5*sin β.Wherein β is 35 ° to 55 °.
Second prism 23 and the first prism 22 are adjacent to fixation, the bottom two ends of the second prism 23 and adjacent first to be compensation
The bottom opposite ends of prism 22 are overlapped, the upper bottom edge length a of the second prism 23, and go to the bottom edge lengths b, b ＞ a, high h, wherein 1
≤ H/h≤2,1≤waist of B/b≤3, the second prisms 23 is δ with bottom angulation, wherein the refractive index of the second prism 23 is similarly m, its
In 1≤m/sin δ≤3, wherein m can be equal to 1*sin δ, 1.5*sin δ, 1.8*sin δ, 2*sin δ, 2.3*sin δ, 2.5*sin
δ, 2.7*sin δ or 3*sin δ.Wherein δ is between 45 ° to 75 °.
The upper adjacent kidney-shaped forming V-shape angle of first prism and the second prism two of same main view section projection, its angle is 20 °~
45°.Wherein preferably 20 °, 25 °, 30 °, 35 °, 40 °.
In addition 5 μm≤a≤0.5mm；10 μm≤A≤1mm, 7 μm≤b≤1mm；10μm≤B≤ 1.5mm.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (10)
1. it is provided with some LED lamp beads, the light source inside anti-dazzle lighting apparatus, including light source layer (3), the light source layer (3)
Layer is provided with lower layers of prisms (2), and lower layers of prisms (2) upper surface is provided with array prism bar structure, the lower layers of prisms (2)
Portion is provided with upper layers of prisms (1), it is characterised in that upper layers of prisms (1) lower surface is provided with prism block (12), the prism block edge
Body longitudinal axis formation periodic undulations face, wavy surface of the same longitudinal axis prism block along the formation periodic undulations of X direction array,
The downward projection of the axial line of the prism bar and upper layers of prisms (1) body longitudinal axis intersects to form sharp angle α, wherein 60 °≤α≤
90 °, the lower layers of prisms includes the prism bar on a bottom plate (21) and bottom plate top, the prism bar including the first prism (22) and
Second prism (23), both are staggered to form pattern plane, and each prism bar section is in isosceles trapezoid, each prism bar
Isosceles trapezoid upper topside length determines that bottom edge lengths do linear change, and adjacent two bottom in same section is mutually compensated for.
2. anti-dazzle lighting apparatus according to claim 1, it is characterised in that lower layers of prisms (2) material is optics
The first prism (22) in one kind in glass, quartz glass, alkali halide crystals, the lower layers of prisms (2) includes the
Top surface (221) on two, bottom surface (223) and the inclined-plane (222) as two waists of left and right, top surface (221) width is on described second
A, bottom surface (223) width is B, high H, inclined-plane (222) and bottom surface (223) angle β；Top surface is wide on second prism (23)
A, the high h of bottom surface width b are spent, waist and the bottom surface of second prism (23) are in that angle is δ.
3. anti-dazzle lighting apparatus according to claim 2, it is characterised in that wherein A is fixed value, B is indulged along prism
Continuous regular change is carried out to central shaft, the bottom left and right ends of the first prism (22), downward projection formation two is symmetrical
Regular frequency wave, the prism (22) of the second prism (23) one first is adjacent to fixation, the second prism (23) to be compensation
Bottom two ends are corresponding with adjacent first prism (22) bottom to be overlapped.
4. anti-dazzle lighting apparatus according to claim 3, it is characterised in that lower layers of prisms (2) refractive index is m, 2
≤m/sinβ≤5；35°≤β≤55°；B ＞ a；1≤H/h≤2；1≤B/b≤3；1≤m/sin δ≤3, adjacent two prisms bar two
Waist angle angular range is 20 °~45 °, in addition, 5 μm≤a≤0.5mm；10 μm≤A≤1mm, 7 μm≤b≤1mm；10μm≤B
≤1.5mm。
5. anti-dazzle lighting apparatus according to claim 1, it is characterised in that upper layers of prisms (1) top is substrate
(11), the prism block (12) is fixed on the substrate (11) bottom by ultraviolet sealing, and the prism block is from substrate
(11) root is upwardly extended, the frustum structure of formation, and the prism block includes top surface (121), the first left surface on first
(122), the first right flank (123), the first leading flank (124) and the first trailing flank (125).
6. anti-dazzle lighting apparatus according to claim 5, it is characterised in that top surface is with y-axis direction in each prism block
For the relief of axial direction, top surface formation discontinuous wavy surface in continuous prism block, layers of prisms side elevation is obtained with N number of
The wave in volt cycle, each prism block side inner side is provided with reflecting coating, and light enters layers of prisms from top surface in prism block (12),
Projected by reflecting from substrate (11) scope of freedom, the prism block refractive index is n, wherein 1≤n≤1.4.
7. anti-dazzle lighting apparatus according to claim 6, it is characterised in that each prism block root is formed objects
Rectangle, the rectangle length is O, width is P, wherein 20 μm≤O≤1mm, 10 μm≤P≤1mm, and the prism block is averaged
Highly it is Q, wherein 10 μm≤Q≤1mm, wherein 20≤N/Q≤50.
8. anti-dazzle lighting apparatus according to claim 5, it is characterised in that first left surface (122) and second
Right flank (124) is that the right and left that top surface (121) downward projection is shown on bilateral symmetry, described first and prism block are left
Right two sides are parallel.
9. anti-dazzle lighting apparatus according to claim 5, it is characterised in that first left surface (122) and first
The base angle angle that right flank (123) is formed with bottom surface respectively is Θ, and wherein Θ meets 2≤n/sin Θ≤5.
10. anti-dazzle lighting apparatus according to claim 1, it is characterised in that the prism block is by polymethylacrylic acid
The material injection shaping of one or more of methyl esters, makrolon, polystyrene, styrene-methylmethacrylate copolymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611245491.1A CN107013827A (en) | 2016-12-29 | 2016-12-29 | Anti-dazzle lighting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611245491.1A CN107013827A (en) | 2016-12-29 | 2016-12-29 | Anti-dazzle lighting apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN107013827A true CN107013827A (en) | 2017-08-04 |
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ID=59440058
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611245491.1A Pending CN107013827A (en) | 2016-12-29 | 2016-12-29 | Anti-dazzle lighting apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI661236B (en) * | 2018-04-13 | 2019-06-01 | 采資新技股份有限公司 | Mask optics for reducing glare |
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