CN109407187A - A kind of multilayered structure optical diffusion sheet - Google Patents
A kind of multilayered structure optical diffusion sheet Download PDFInfo
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- CN109407187A CN109407187A CN201811536847.6A CN201811536847A CN109407187A CN 109407187 A CN109407187 A CN 109407187A CN 201811536847 A CN201811536847 A CN 201811536847A CN 109407187 A CN109407187 A CN 109407187A
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- 238000009792 diffusion process Methods 0.000 title claims abstract description 71
- 230000003287 optical effect Effects 0.000 title claims abstract description 58
- 239000000463 material Substances 0.000 claims abstract description 20
- 239000003292 glue Substances 0.000 claims description 32
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 22
- 239000004593 Epoxy Substances 0.000 claims description 4
- 125000003700 epoxy group Chemical group 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000004417 polycarbonate Substances 0.000 claims description 4
- 229920000515 polycarbonate Polymers 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 239000010453 quartz Substances 0.000 claims description 4
- 239000010980 sapphire Substances 0.000 claims description 4
- 229910052594 sapphire Inorganic materials 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000012815 thermoplastic material Substances 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 230000013011 mating Effects 0.000 abstract description 2
- 239000011521 glass Substances 0.000 description 18
- 239000011248 coating agent Substances 0.000 description 9
- 238000000576 coating method Methods 0.000 description 9
- 238000007711 solidification Methods 0.000 description 9
- 230000008023 solidification Effects 0.000 description 9
- 239000000203 mixture Substances 0.000 description 7
- 239000002245 particle Substances 0.000 description 5
- 239000011324 bead Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
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
- G02B5/0236—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element
Abstract
The invention discloses a kind of multilayered structure optical diffusion sheets, belong to diffusion sheet technical field.The present invention includes basal layer and working lining, and the basal layer is one layer of parallel flat, and the working lining is made of the material layer of two layers or two layers or more different refractivity；Wherein, at least one layer of micro-structure, the upper surface of top layer's working lining are smooth between each working lining.Optical diffusion sheet light of the invention homogenizes that direction is controllable, and the micro-structure reflected to light can preferably protect micro-structure in the inside of even mating plate, avoid damaging micro-structure in use to influence using effect.The present invention can adjust the scattering angle of optical scattering piece by adjusting refractive index difference degree, microstructure appearance and arrangement of micro-structure two sides working lining etc..
Description
Technical field
The present invention relates to diffusion sheet technical field, in particular to a kind of multilayered structure optical diffusion sheet.
Background technique
Diffusion sheet (Diffuser) is used to dissipate light, provides a uniform area source, thus in laser lighting, LED
Light field is homogenized is used widely in FPD.
At present there are two types of the main Types of diffusion sheet:
One is bead type, it is to will differ from the particle blending of substrate refractive index in substrate as scattering particles, makes light
Refraction, reflection and scattering constantly occurs in the different medium of two refractive index when by scattering layer, optics is generated with this
The effect of diffusion, however this mode will be inevitably present absorption of the diffusion particle to light, cause the efficiency of light energy utilization low,
And the dispersal direction of light is difficult to control.
Another kind is pattern pressing type, it is to form the micro-structure of diffusible light in membrane surface, surface topography can be divided into
Machine pattern, regular morphology and undaform pattern, wherein the production of undaform pattern generallys use needed for laser processing method marking
Mode determines that pattern changes by controlling intensity and the beam size of laser energy, and such diffusion sheet efficiency is higher,
But due to realizing light diffusion by surface micro-structure, so the problems such as being easy to appear Micro-architecture deterioration in use process, shadow
Ring diffusion sheet effect.
How both the above diffusion sheet is overcome the problems, such as, developing the new diffusion sheet of one kind is the technology hardly possible for needing to capture at present
Topic.
Summary of the invention
In order to make up for the deficiencies of the prior art, the present invention provides a kind of multilayered structure optical diffusion sheets.
The technical solution of the present invention is as follows:
A kind of multilayered structure optical diffusion sheet, including basal layer and working lining, the basal layer are one layer of parallel flat, the work
Make layer to be made of the material layer of two layers or two layers or more different refractivity；Wherein, at least one layer of micro- knot between each working lining
Structure, the upper surface of top layer's working lining is smooth.
Preferably, the micro-structure is to be repeated cyclically structure or random distribution structure.
Preferably, the basal layer with a thickness of 0.1 ~ 10mm.
Preferably, working lining with a thickness of 10 μm ~ 250 μm.More have a choosing, working lining with a thickness of 40 μm ~
120μm。
Preferably, the micro-structure is lenticule pattern.
Further, the radius of curvature in the microstructure level direction is 20 μm ~ 200 μm, the radius of curvature of vertical direction
It is 20 μm ~ 200 μm.
It is furthermore preferred that the radius of curvature in the microstructure level direction is 40 μm ~ 150 μm, the radius of curvature of vertical direction
It is 40 μm ~ 150 μm.40 μm ~ 150 μm of radius of curvature micro-structure can be carved by single-point diamond or the works such as laser direct-writing
Skill is relatively easy to process, and the control to incident beam angle may be implemented in conjunction with the refractive index apolegamy of micro-structure.
Preferably, the micro-structure repetition period in the horizontal direction is 10 μm ~ 180 μm, in vertical direction
Repetition period is 10 μm ~ 180 μm.
More there is choosing, the micro-structure repetition period in the horizontal direction is 30 μm ~ 80 μm, in the repetition week of vertical direction
Phase is 30 μm ~ 80 μm.
It, can be with more flexible to horizontal and vertical by control micro-structure curvature in the repetition period both horizontally and vertically
Histogram to diffusion angle individually controlled.
Preferably, the basal layer is glassy layer, plastic layer, quartz layer or sapphire layer.
Preferably, each working lining is the different acrylic uv-curable glue material layer of refractive index, epoxies
Ultra-violet curing substratum transparent or polycarbonate-based thermoplastic material layer.
In the present invention, basal layer only plays a supporting role in protection, as long as transparent rigid material, as glass, plastics,
Quartz, sapphire etc.；Working layer is the transparent material for being easy to micro-structure forming, such as acrylic uv-curable glue, epoxies
Ultra-violet curing transparent adhesive tape, polycarbonate-based thermoplastic material etc..
Preferably, diffusion angle is 1 ° ~ 150 °.More there is choosing, diffusion angle is 12 ° ~ 50 °.The present invention
Have the beneficial effect that
1, the micro-structure between each working lining (more refractive index materials) of the present invention is different from bead type substrate refraction materials
It is mixed into scattering particles, being formed using scattering particles to the refraction of light, reflection and scattering in bead type homogenizes light, real
Border light homogenizes that direction is uncontrollable, and the micro-structure between the working lining in the present invention is to be pre-designed processing, only pass through in
Micro-structure carries out refraction to light to change direction between portion's refractive index material, therefore to homogenize direction controllable for light.
2, micro-structure of the present invention for being reflected to light is different from pattern pressing type for micro-structure in the inside of even mating plate
On diffusion sheet surface, the present invention can preferably protect micro-structure, avoid damaging micro-structure in use for processing
To influence using effect.
3, optical diffusion sheet of the invention using the refractive index difference of micro-structure two layers of material layer in working lining by being realized
Diffusion to light, and by adjusting the scattering of the adjusting optical scattering piece such as refractive index difference degree, microstructure appearance and arrangement
Angle.
4, diffusion sheet proposed by the present invention is all flat and smooth structure on two surfaces, and pattern pressing type diffusion sheet has a face
For micro-structure face, diffusion sheet of the invention being capable of the easier cleaning for carrying out surface in contrast.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of optical scattering piece of the present invention；
Fig. 2 is the top view of optical scattering piece in Fig. 1；
Fig. 3 is the horizontal cross-sectional view of optical scattering piece in Fig. 1；
Fig. 4 is the vertical direction sectional view of optical scattering piece in Fig. 1；
Fig. 5 is that the multiplexing of optical scattering piece of the present invention makees schematic diagram of a layer structure.
Specific embodiment
Embodiment 1
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of multilayered structure optical diffusion sheet, by 1 first working lining 2 of basal layer and the second work
Make the composition of layer 3.
Wherein, basal layer 1 be one layer of parallel flat, do not have optical texture, be mainly used for diffusion sheet provide protection and
Support.The lower surface of basal layer 1 is the bottom surface of entire optical diffusion sheet, the following table of the upper surface of basal layer 1 and the first working lining 2
Face is connected.
First working lining 2 is made of with the second working lining 3 material of different refractivity.The upper surface of first working lining 2 with
The lower surface of second working lining 3 is connected, and there are micro-structures between the first working lining 2 and the second working lining 3.Second working lining 3
Upper surface is smooth.
In the present embodiment,
Basal layer uses 100 millimeters of diameter, the K9 glass of 0.3 millimeter of thickness；
Refractive index be 1.46 acrylic uv-curable glue be coated in basal layer glass surface, 50 microns of thickness, as the first work
Make layer 2；
Regular array array lenticule pattern, microstructure level side are processed on 2 surface of the first working lining using laser writing technology
It is 80 microns to radius of curvature R 1 and vertical direction radius of curvature R 2, micro-structure repetition period T1 and Vertical Square in the horizontal direction
It is 50 microns to repetition period T2；
100 microns of 2 surface coating thickness of the first working lining, refractive index be 1.59 another model acrylic uv-curable glue,
I.e. the second working lining 3 after this layer of solidification glue is solidified by uv-exposure.
The multilayered structure optical diffusion sheet completes, and surveys its performance using wavelength 532nm parallel beam incident and (is shown in Table
1)。
Embodiment 2
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of multilayered structure optical diffusion sheet, by 1 first working lining 2 of basal layer and the second work
Make the composition of layer 3.
Wherein, basal layer 1 be one layer of parallel flat, do not have optical texture, be mainly used for diffusion sheet provide protection and
Support.The lower surface of basal layer 1 is the bottom surface of entire optical diffusion sheet, the following table of the upper surface of basal layer 1 and the first working lining 2
Face is connected.
First working lining 2 is made of with the second working lining 3 material of different refractivity.The upper surface of first working lining 2 with
The lower surface of second working lining 3 is connected, and there are micro-structures between the first working lining 2 and the second working lining 3.Second working lining 3
Upper surface is smooth.
In the present embodiment,
Basal layer uses 100 millimeters of diameter, the K9 glass of 0.3 millimeter of thickness；
Refractive index be 1.46 acrylic uv-curable glue be coated in basal layer glass surface, 50 microns of thickness, as the first work
Make layer 2；
Regular array array lenticule pattern, microstructure level side are processed on 2 surface of the first working lining using laser writing technology
To radius of curvature R 1 be 40 microns, vertical direction radius of curvature R 2 be 100 microns, micro-structure in the horizontal direction repetition period T1 and
Vertical direction repetition period T2 is 50 microns；
100 microns of 2 surface coating thickness of the first working lining, refractive index be 1.59 another model acrylic uv-curable glue,
I.e. the second working lining 3 after this layer of solidification glue is solidified by uv-exposure.
The multilayered structure optical diffusion sheet completes, and surveys its performance using wavelength 532nm parallel beam incident and (is shown in Table
1)。
Embodiment 3
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of multilayered structure optical diffusion sheet, by 1 first working lining 2 of basal layer and the second work
Make the composition of layer 3.
Wherein, basal layer 1 be one layer of parallel flat, do not have optical texture, be mainly used for diffusion sheet provide protection and
Support.The lower surface of basal layer 1 is the bottom surface of entire optical diffusion sheet, the following table of the upper surface of basal layer 1 and the first working lining 2
Face is connected.
First working lining 2 is made of with the second working lining 3 material of different refractivity.The upper surface of first working lining 2 with
The lower surface of second working lining 3 is connected, and there are micro-structures between the first working lining 2 and the second working lining 3.Second working lining 3
Upper surface is smooth.
In the present embodiment,
Basal layer uses 100 millimeters of diameter, the K9 glass of 0.3 millimeter of thickness；
Refractive index be 1.46 acrylic uv-curable glue be coated in basal layer glass surface, 50 microns of thickness, as the first work
Make layer 2；
Regular array array lenticule pattern, microstructure level side are processed on 2 surface of the first working lining using laser writing technology
It is 120 microns to radius of curvature R 1, vertical direction radius of curvature R 2 is 100 microns, micro-structure repetition period T1 in the horizontal direction
It is 50 microns with vertical direction repetition period T2；
100 microns of 2 surface coating thickness of the first working lining, refractive index be 1.59 another model acrylic uv-curable glue,
I.e. the second working lining 3 after this layer of solidification glue is solidified by uv-exposure.
The multilayered structure optical diffusion sheet completes, and surveys its performance using wavelength 532nm parallel beam incident and (is shown in Table
1)。
Embodiment 4
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of multilayered structure optical diffusion sheet, by 1 first working lining 2 of basal layer and the second work
Make the composition of layer 3.
Wherein, basal layer 1 be one layer of parallel flat, do not have optical texture, be mainly used for diffusion sheet provide protection and
Support.The lower surface of basal layer 1 is the bottom surface of entire optical diffusion sheet, the following table of the upper surface of basal layer 1 and the first working lining 2
Face is connected.
First working lining 2 is made of with the second working lining 3 material of different refractivity.The upper surface of first working lining 2 with
The lower surface of second working lining 3 is connected, and there are micro-structures between the first working lining 2 and the second working lining 3.Second working lining 3
Upper surface is smooth.
In the present embodiment,
Basal layer uses 100 millimeters of diameter, the K9 glass of 0.3 millimeter of thickness；
Refractive index be 1.46 acrylic uv-curable glue be coated in basal layer glass surface, 50 microns of thickness, as the first work
Make layer 2；
Regular array array lenticule pattern, microstructure level side are processed on 2 surface of the first working lining using laser writing technology
It is 80 microns to radius of curvature R 1, vertical direction radius of curvature R 2 is 80 microns, and repetition period T1 is micro-structure in the horizontal direction
50 microns, vertical direction repetition period T2 is 30 microns；
100 microns of 2 surface coating thickness of the first working lining, refractive index be 1.59 another model acrylic uv-curable glue,
I.e. the second working lining 3 after this layer of solidification glue is solidified by uv-exposure.
The multilayered structure optical diffusion sheet completes, and surveys its performance using wavelength 532nm parallel beam incident and (is shown in Table
1)。
Embodiment 5
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of multilayered structure optical diffusion sheet, by 1 first working lining 2 of basal layer and the second work
Make the composition of layer 3.
Wherein, basal layer 1 be one layer of parallel flat, do not have optical texture, be mainly used for diffusion sheet provide protection and
Support.The lower surface of basal layer 1 is the bottom surface of entire optical diffusion sheet, the following table of the upper surface of basal layer 1 and the first working lining 2
Face is connected.
First working lining 2 is made of with the second working lining 3 material of different refractivity.The upper surface of first working lining 2 with
The lower surface of second working lining 3 is connected, and there are micro-structures between the first working lining 2 and the second working lining 3.Second working lining 3
Upper surface is smooth.
In the present embodiment,
Basal layer uses 100 millimeters of diameter, the K9 glass of 0.3 millimeter of thickness；
Refractive index be 1.46 acrylic uv-curable glue be coated in basal layer glass surface, 50 microns of thickness, as the first work
Make layer 2；
Regular array array lenticule pattern, microstructure level side are processed on 2 surface of the first working lining using laser writing technology
It is 80 microns to radius of curvature R 1, vertical direction radius of curvature R 2 is 80 microns, and repetition period T1 is micro-structure in the horizontal direction
40 microns, vertical direction repetition period T2 is 30 microns；
100 microns of 2 surface coating thickness of the first working lining, refractive index be 1.59 another model acrylic uv-curable glue,
I.e. the second working lining 3 after this layer of solidification glue is solidified by uv-exposure.
The multilayered structure optical diffusion sheet completes, and surveys its performance using wavelength 532nm parallel beam incident and (is shown in Table
1)。
Embodiment 6
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of multilayered structure optical diffusion sheet, by 1 first working lining 2 of basal layer and the second work
Make the composition of layer 3.
Wherein, basal layer 1 be one layer of parallel flat, do not have optical texture, be mainly used for diffusion sheet provide protection and
Support.The lower surface of basal layer 1 is the bottom surface of entire optical diffusion sheet, the following table of the upper surface of basal layer 1 and the first working lining 2
Face is connected.
First working lining 2 is made of with the second working lining 3 material of different refractivity.The upper surface of first working lining 2 with
The lower surface of second working lining 3 is connected, and there are micro-structures between the first working lining 2 and the second working lining 3.Second working lining 3
Upper surface is smooth.
In the present embodiment,
Basal layer uses 100 millimeters of diameter, the K9 glass of 0.3 millimeter of thickness；
Refractive index be 1.51 acrylic uv-curable glue be coated in basal layer glass surface, 50 microns of thickness, as the first work
Make layer 2；
Regular array array lenticule pattern, microstructure level side are processed on 2 surface of the first working lining using laser writing technology
To radius of curvature R 1 be 80 microns, vertical direction radius of curvature R 2 be 80 microns, micro-structure in the horizontal direction repetition period T1 and
Vertical direction repetition period T2 is 50 microns；
100 microns of 2 surface coating thickness of the first working lining, refractive index be 1.59 another model acrylic uv-curable glue,
I.e. the second working lining 3 after this layer of solidification glue is solidified by uv-exposure.
The multilayered structure optical diffusion sheet completes, and surveys its performance using wavelength 532nm parallel beam incident and (is shown in Table
1)。
Embodiment 7
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of multilayered structure optical diffusion sheet, by 1 first working lining 2 of basal layer and the second work
Make the composition of layer 3.
Wherein, basal layer 1 be one layer of parallel flat, do not have optical texture, be mainly used for diffusion sheet provide protection and
Support.The lower surface of basal layer 1 is the bottom surface of entire optical diffusion sheet, the following table of the upper surface of basal layer 1 and the first working lining 2
Face is connected.
First working lining 2 is made of with the second working lining 3 material of different refractivity.The upper surface of first working lining 2 with
The lower surface of second working lining 3 is connected, and there are micro-structures between the first working lining 2 and the second working lining 3.Second working lining 3
Upper surface is smooth.
In the present embodiment,
Basal layer uses 100 millimeters of diameter, the K9 glass of 0.3 millimeter of thickness；
Refractive index be 1.46 acrylic uv-curable glue be coated in basal layer glass surface, 50 microns of thickness, as the first work
Make layer 2；
Regular array array lenticule pattern, microstructure level side are processed on 2 surface of the first working lining using laser writing technology
To radius of curvature R 1 be 80 microns, vertical direction radius of curvature R 2 be 80 microns, micro-structure in the horizontal direction repetition period T1 and
Vertical direction repetition period T2 is 50 microns；
100 microns of 2 surface coating thickness of the first working lining, refractive index be 1.67 another model acrylic uv-curable glue,
I.e. the second working lining 3 after this layer of solidification glue is solidified by uv-exposure.
The multilayered structure optical diffusion sheet completes, and surveys its performance using wavelength 532nm parallel beam incident and (is shown in Table
1)。
Embodiment 8
As shown in figure 5, a kind of more working lining feature optical diffusion sheets, by basal layer 1, the first working lining 2, the second working lining 3,
Three working linings 4 and the 4th working lining 5 are constituted.
Wherein, basal layer 1 be one layer of parallel flat, do not have optical texture, be mainly used for diffusion sheet provide protection and
Support.The lower surface of basal layer 1 is the bottom surface of entire optical diffusion sheet, the following table of the upper surface of basal layer 1 and the first working lining 2
Face is connected.
First working lining 2 is made of with the second working lining 3 material of different refractivity.The upper surface of first working lining 2 with
The lower surface of second working lining 3 is connected, and there are micro-structures between the first working lining 2 and the second working lining 3.Second working lining 3
Upper surface is smooth.
The upper surface of second working lining 3 is connected with the lower surface of third working lining 4.Third working lining 4 and the 4th working lining 5
It is made of the material of different refractivity.The upper surface of third working lining 4 is connected with the lower surface of the 4th working lining 5, third work
There are micro-structures between layer 4 and the 4th working lining 5.The upper surface of 4th working lining 5 is smooth.
In the present embodiment,
Basal layer uses 100 millimeters of diameter, the K9 glass of 0.3 millimeter of thickness；
Refractive index be 1.46 acrylic uv-curable glue be coated in basal layer glass surface, 50 microns of thickness, as the first work
Make layer 2；
Regular array array lenticule pattern, microstructure level side are processed on 2 surface of the first working lining using laser writing technology
It is 80 microns to radius of curvature R 1 and vertical direction radius of curvature R 2, micro-structure repetition period T1 and Vertical Square in the horizontal direction
It is 50 microns to repetition period T2；
100 microns of 2 surface coating thickness of the first working lining, refractive index be 1.59 another model acrylic uv-curable glue,
I.e. the second working lining 3 after this layer of solidification glue is solidified by uv-exposure.
The acrylic uv-curable glue that refractive index is 1.46 is coated in 3 surface of the second working lining, and 50 microns of thickness, as the
Three working linings 4；
Regular array array lenticule pattern, microstructure level side are processed on 4 surface of third working lining using laser writing technology
It is 80 microns to radius of curvature R 1, vertical direction radius of curvature R 2 is 80 microns, and repetition period T1 is micro-structure in the horizontal direction
40 microns, vertical direction repetition period T2 is 30 microns；
100 microns of 4 surface coating thickness of third working lining, refractive index be 1.67 another model acrylic uv-curable glue,
I.e. the 4th working lining 5 after this layer of solidification glue is solidified by uv-exposure.
The multilayered structure optical diffusion sheet completes, and surveys its performance using wavelength 532nm parallel beam incident and (is shown in Table
1)。
Each embodiment optical diffusion sheet performance test table of table 1
As shown in Table 1, the present invention can by change the radius of curvature of micro-structure between the first working lining 2 and the second working lining 3,
The refringence of repetition period and the first working lining 2 and the second working lining 3 realizes the different emergent light angles of divergence to modulate
Degree.
In the present invention, basal layer 1 only plays a supporting role in protection, other than using the models glass such as K9, it is possible to use its
His transparent rigid material, such as plastics, quartz, sapphire；Working layer, can also other than using acrylic uv-curable glue
It is easy to micro-structure forming transparent material, such as epoxies uv-curable glue, polycarbonate-based thermoplastic material using other.
The present invention program is flexibly easy-to-use, can protect to workspace micro-structure, avoids damaging in use micro-
Structure is to influence using effect.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. a kind of multilayered structure optical diffusion sheet, including basal layer and working lining, it is characterised in that: the basal layer is one layer flat
Row plate, the working lining are made of the material layer of two layers or two layers or more different refractivity；Wherein, between each working lining at least
There is one layer of micro-structure, the upper surface of top layer's working lining is smooth.
2. multilayered structure optical diffusion sheet as described in claim 1, it is characterised in that: the micro-structure is to be repeated cyclically structure
Or random distribution structure.
3. multilayered structure optical diffusion sheet as described in claim 1, it is characterised in that: the basal layer with a thickness of 0.1 ~
10mm。
4. multilayered structure optical diffusion sheet as claimed in claim 1 or 3, it is characterised in that: working lining with a thickness of 10 μm ~ 250
μm。
5. multilayered structure optical diffusion sheet as described in claim 1, it is characterised in that: the micro-structure is lenticule pattern.
6. multilayered structure optical diffusion sheet as claimed in claim 5, it is characterised in that: the curvature in the microstructure level direction half
Diameter is 20 μm ~ 200 μm, and the radius of curvature of vertical direction is 20 μm ~ 200 μm.
7. the multilayered structure optical diffusion sheet as described in claim 1 or 5, it is characterised in that: the micro-structure is in the horizontal direction
Repetition period is 10 μm ~ 180 μm, is 10 μm ~ 180 μm in the repetition period of vertical direction.
8. multilayered structure optical diffusion sheet as described in claim 1, it is characterised in that: the basal layer be glassy layer, plastic layer,
Quartz layer or sapphire layer.
9. multilayered structure optical diffusion sheet as described in claim 1, it is characterised in that: each working lining is that refractive index is different
Acrylic uv-curable glue material layer, epoxies ultra-violet curing substratum transparent or polycarbonate-based thermoplastic material layer.
10. multilayered structure optical diffusion sheet as described in claim 1, it is characterised in that: its diffusion angle is 1 ° ~ 150 °.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109116573A (en) * | 2018-10-29 | 2019-01-01 | 基腾(成都)科技有限公司 | A kind of naked eye 3D diaphragm |
| CN110941036A (en) * | 2019-12-20 | 2020-03-31 | 宁波舜宇奥来技术有限公司 | Infrared light diffusion sheet |
| CN111025670A (en) * | 2019-12-20 | 2020-04-17 | 宁波舜宇奥来技术有限公司 | Infrared light diffusion sheet and optical system |
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