CN1157929A - Optical element for controling surface image changing mirror surface reflection and its manufacturing method - Google Patents
Optical element for controling surface image changing mirror surface reflection and its manufacturing method Download PDFInfo
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- CN1157929A CN1157929A CN 96119670 CN96119670A CN1157929A CN 1157929 A CN1157929 A CN 1157929A CN 96119670 CN96119670 CN 96119670 CN 96119670 A CN96119670 A CN 96119670A CN 1157929 A CN1157929 A CN 1157929A
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- optical element
- embossment
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- direct reflection
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Abstract
An optical element able to change surface reflection by controlling its surface shape features that a planar film with reflection and absorption abilities is made into a diffraction patter in relief shape and then proceed surface film coating treatment to make it effectively capture incident electromagnetic wave, reduce both its reflectivity and macroscopic reflected wave and greatly increase its absorption power. Said optical film element is easy to manufacture and has low production cost.
Description
The present invention relates to a kind of optical element and preparation method thereof, particularly the control surface pattern changes optical element of direct reflection and preparation method thereof.
As everyone knows, the object that mirror and other have the minute surface characteristic is seen everywhere in daily life, it brings many convenience and temperament and interest for people's life and work, but causing to people again, direct reflection hope the back give birth to tired experience, for example blazing sun can cause strong impulse to human eye by the glass pane of vehicle or buildings and the reflected light of other parts formation, even make recipient's Loss Of Vision reaction at short notice, if there is metal level on this type objects surface, this direct reflection also can be strengthened exponentially.People feel puzzlement very much up to now to this phenomenon, and make great efforts to seek the way of solution for overcoming this phenomenon.Scientist can be reduced to reflectivity in 1% on several square centimeters element with the multilayer film technology now, and can eliminate the reflection of macroscopical minute surface direction basically, but the complex process that it relates to, the apparatus expensive of using, the cost of products height of producing, thus obstacle this technology applying on the product for civilian use.It is reported that can form low reflecting surface on than large tracts of land is electrochemical plating than effective method, promptly form very thick oxide layer in the metal surface, as so-called black chromium, black nickel, but this method has limitation, be only applicable to opaque thick metal parts, its production cost is still expensive, also can't be generalized to large tracts of land near on the transparent and translucent optical material.
The objective of the invention is, improve at above-mentioned the deficiencies in the prior art and found, promptly propose the control surface pattern and change optical element of direct reflection and preparation method thereof.
Technical solution of the present invention is, employing can weaken electromagnetic wave along object macro surface direct reflection, and can reduce its total reflectivity and play the optical element of optical trap effect, it is characterized in that there is some single cones taper embossment that rearranges straggly that just differs on the surface that this optical element has reflection and receptivity.
It is characterized in that, the basic repetitive of surperficial taper embossment be shaped as cone or round platform, the same order of magnitude of the height of its cone or diameter and electromagnetic wavelength.
It is characterized in that, the basic repetitive of surface taper embossment be shaped as pyramid or for triangular pyramidal or be the cone array of the cone shape of polygonal pyramid and combination thereof, it is coarse stepped that the rounded and faceted pebble in the top of cone is, the same order of magnitude of the height of cone or bottom width and electromagnetic wavelength.
It is characterized in that the height of surperficial taper embossment is between 0.1 micron to 2 millimeters.
It is characterized in that the floorage of each repetitive of surperficial taper embossment is 0.04 square micron to 8 square millimeter.
The method for making that the control surface pattern changes the optical element of direct reflection is that employing stencil duplicating technology is characterized in that, on masterplate, evaporate organic material with embossment pattern, make that it solidifies on masterplate, be shaped in the polymerization process, the thing that must be shaped after the demoulding carries out surface treatment again.
It is characterized in that on sheet metal or glass or organic material, the application photoetching corrosion is made the confession of taper shape or pyramid embossing pattern and duplicated the masterplate of usefulness.
It is characterized in that, be mould with macroscopical cone or pyramid array, with holographic mode epitome, makes required conical buoy engraving patterns then as master on special plastic plate, through behind the plating nickel on surface, as supplying to duplicate the masterplate of usefulness.
The method for making that the control surface pattern changes the optical element of direct reflection is that employing stencil duplicating technology is characterized in that, has the masterplate top-pour heat injection moulding material of embossment pattern, through cooled and solidified, polymerization process and form, the thing that must be shaped after the demoulding carries out surface treatment again.
The method for making that the control surface pattern changes the optical element of direct reflection is that employing stencil duplicating technology is characterized in that, thermoplastic film is heated to softening point, re-uses the masterplate with embossment pattern and impresses and form, and forms thing and carries out surface treatment again.
The control surface pattern changes the method for making of the optical element of direct reflection, adopt stencil duplicating technology, it is characterized in that first reflecting surface with flat film plates with behind metal or metal sandwich or metal and the metal medium interlayer, impresses and forms with the masterplate with embossment pattern again.
It is characterized in that, carry out surface treatment and be covering the material of low-k at the reflecting surface of the embossment pattern of shaping thing.
It is characterized in that, carry out surface treatment and be on the reflecting surface of the embossment pattern of shaping thing, being coated with the organic material of metallic film.
It is characterized in that, carry out surface treatment and be on the reflecting surface of the embossment pattern of shaping thing, being coated with the organic material of metal and dielectric film.
It is characterized in that, carry out surface treatment and be on the reflecting surface of the embossment pattern of shaping thing, being coated with the glass material of metal or metal and dielectric film.
It is characterized in that the metal material that carries out surface treatment and be being coated with is the alloy material of golden Au, silver-colored Ag, copper Cu, aluminium Al, chromium Cr, nickel, tantalum Ta, titanium Ti, tin Sn, molybdenum Mo, zinc Zn and combination thereof on the reflecting surface of the embossment pattern of shaping thing.
It is characterized in that carrying out surface treatment and be the dielectric film that the reflecting surface at the embossment pattern of shaping thing is coated with is oxide, or nitride, or hydride, or boride, or carbonide.
Advantage of the present invention is, the material surface that will have reflection and receptivity is made the diffraction pattern of embossment form, can catch incident electromagnetic wave effectively, both can reduce its reflectivity, thereby eliminated the reflection wave of macroscopical direct reflection direction basically, its receptivity is greatly increased.This optical element can change specular reflectance, reduces the reflection wave of macro surface, is the innovation to existing thin film optical technology.
The present invention is novel, and is stable and reliable for performance, make easily, and method for making is simple and easy to do, and production cost is low, is convenient to large-scale production and applies.
Fig. 1, the present invention constitute the regularly arranged triangular pyramid volume array synoptic diagram that the embossment pattern is selected for use
Fig. 2, the reflection synoptic diagram of the light beam of different incidence angles on the triangular conical surface that constitutes the embossment pattern
Fig. 3, the present invention constitute the synoptic diagram of the cone array of the irregular alignment that the embossment pattern selects for use
Fig. 4, reflection and the incoherent scattering synoptic diagram of the light beam of assigned direction on cone (section) array
Fig. 5, the present invention constitute the irregular polygonal pyramid volume array synoptic diagram that the embossment pattern is selected for use
Fig. 6, reflection and the incoherent scattering synoptic diagram of the light beam of assigned direction on polygonal pyramid body (section) array
Fig. 7, the structural representation of the elementary cell of the cone of formation embossment pattern
Fig. 8 constitutes the structural representation of the pyramid of embossment pattern elementary cell of the present invention
Embodiments of the invention are described below with reference to the accompanying drawings.
As shown in Figure 1 and Figure 2, be that 25% metalized surface is made the relief surface with triangular pyramidal array with reflectivity.According to optical principle as can be known, normal incident light, its incident direction approaches the macro surface normal direction, just leave the interface through two secondary reflections, so its reflectivity is R=R
o 2When Ro=25%, the reflectivity of the relief surface of the cone array that is made of some triangular pyramidals 1 after for the secondary reflection of normal incidence light beam will drop to about 6%, when if cone array surface reflectivity is Ro=10%, reflectivity behind its secondary reflection reduces to 1%, push away and extensively know, in the oblique incidence direction, its reflection wave and incident wave are at the homonymy of macro surface normal, the intensity that scatters to the light beam of normal direction and direct reflection direction so will be very faint, we know that daytime, the sun was in the sky, so, has the present invention that the relief surface of aforesaid triangular pyramidal 1 constitutes if cover windows of vehicles glass or cover the surface of building window glass, can obtain the effect of more satisfactory change direct reflection, the sunshine of its reflection is extremely faint, and is that directive is aerial basically.
As Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, shown in Figure 8, constitute optical element of the present invention and remove the relief materials that adopts triangular pyramidal 1, also can adopt the relief surface of other cone array, can adopt cone 2 arrays of irregular alignment, also can adopt irregular polygonal pyramid shape 3 arrayed, constitute irregularly differ, the taper embossment structure of combination straggly, forming reflection, scattered beam, with overcome effectively direct reflection to people bring unhappy and worried.In order to realize repeatedly reflecting; and the effect of incoherent scattering; the microcosmic cone that need not require to constitute relief surface all is onesize and evenly distributes; to form diffuse reflection and scattering; but the top that requires cone is rounded and faceted pebble is coarse stepped appearance; simultaneously in order to control the absorption of reflecting surface to sunshine; avoid causing too big thermal effect; cause Che Nei or indoor temperature to raise; then should constitute relief surface plating of the present invention with aluminium film or golden Au; silver Ag; copper Cu; and alloy film; but to the latter---gold; silver; copper and alloy film thereof; because of its poor adhesive force, before plated film, must plate the thin cushion 4 of one deck earlier; as titanium Ti or zinc Zn; nickel etc. and alloy thereof; gold-plated again; silver; copper and alloy film thereof constitute metal level 5, are coated with the last layer oxide then again, as the material formation protective seam 6 of monox or polyacrylic acid lipid.So both eliminated unnecessary direct reflection, reduced the thermal effect of taper relief surface again effectively, and made it have certain transparency again simultaneously, the needs that help brightness requirement indoor in the car and externally observe.
Embodiment two is, form roughly equally distributed cone 2 in transparent plastic surface, the characteristic dimension of this relief surface that constitutes by cone 2, comprise the height of cone and cone base diameter be controlled at the micron number magnitude, with the same order of magnitude of electromagnetic wavelength, generally be controlled between the 0.1-2 millimeter, the floorage of each repetitive of surface taper embossment is controlled at 0.04 square micron to 8 square millimeter, with in order to be effective.Then plate the cushion 4 of 15 dusts () and the metallic chromium layer of 20 dusts () at its surface (reflecting surface), and the tin oxide of 350 dusts or zinc oxide film, the membraneous material that constitutes optical element of the present invention is 65% to visible light transmittance, the reflectivity of making the cone relief surface is lower than 1%, and its spuious incident light also is lower than 1% through its surface scattering to the reflectivity of normal direction.To be affixed on the display screen of TV screen or robot calculator by the film that requirement of the present invention constitutes, the part that then spuious light sees through its film will be absorbed by screen itself, so the reflection that the observer who is sitting in the dead ahead can not cause because of light and worry, and this surface has faint electric conductivity, can eliminate the accumulation of surface electrostatic.
Embodiment 3, the present invention can will go up Titanium and the 550 dust zinc paste that plated film in the example changes 80 dusts into, make and make the taper relief surface the clean transmissivity of visible light is reached 50%, if have the film of taper relief surface to place TV screen the place ahead with this, then its scattered light total reflectivity is still about 1%, because the fluorescent that TV screen is sent only need see through this film once, will be greatly improved so image sets off by contrast, and so the interference of the indoor spuious light that need not to worry is the better effects if of observing.
Be coated with the material of low-refraction when optical element surface of the present invention, corrosion-resistant to realize, during anti abrasive smooth surface, will there be adverse influence at the external coating that it is surperficial and the interface of air to total reflecting properties on surface, for example the light refraction constant of fluoride is about 1.40, the light refraction constant of silicon dioxide is 1.46, the light refraction constant of polyacrylic acid lipid plastics is near 1.50, the reflectivity of they and air interface is about 3%, but in some occasion, the reflectivity on surface is controlled at below 10% just satisfactory, so use this series of products of the present invention, effect with same reduction surface reflectivity, this also is of the present invention one big advantage.
The applicable cases of the present invention who is worth pointing out on automobile window glass, because a variety of causes, many car owners wish that the transparency of glass of its rear window is low, for example certain car owner wishes that the transmittance of back windowpane is 10-20%, the both sides, rear portion are 20%-40%, front part sides remains on 60-70%, the glass pane in dead ahead keeps 70-90%, the garage attendant abides by above-mentioned requirements metallized film is pasted on each glass for vehicle window inboard, because all be mixed with ultraviolet light absorber in the cementing agent usually, so occupant and article can not be subjected to the infringement of ultraviolet ray irradiation yet, but the car owner is also disappointed to some extent, because at this moment the reflectivity of the glass for vehicle window at each position is different, and the glass pane of back especially, its reflectivity may internally and externally all almost become a large mirror up to more than the 30-50%.Yet use optical element of the present invention instead, then fill and lead up all micron-sized irregular parts at this product lateral surface with organic material, no matter the transparency of then all its used metallized films of each window-glass how, its internal and external reflectivity is all close with clear glass itself.
Method for making of the present invention is that employing stencil duplicating technology is made basement membrane, and the membrane surface with taper embossment is carried out coating film treatment, obtains the optical element of this present invention requirement.In order to form the surface topography with taper embossment on large tracts of land, the first step is to make to duplicate masterplate.This masterplate is a kind of metallic film or thin plate that has plastic relief form of the presently claimed invention, it is contained on the reel, because plastic relief figure required for the present invention does not require the distribution that its form is fairly regular and neat, so can directly form image through lithography corrosion process at (or on glass or organic material) on the sheet metal of selecting for use; Also can with holographic mode epitome, on special plastic cement, form needed conical buoy engraving patterns then from macroscopical three-dimensional object array, more promptly can be after this relief surface nickel plating as the masterplate that duplicates usefulness.Second step was to utilize masterplate a large amount of impressions and duplicating on plastic sheeting, also can go up cast or evaporation thermoplastic material at the master of installing on the rotating cylinder (being masterplate), treat its solidification aggregation shaping back demoulding on masterplate, the thermoplastic film surface that takes off has just had the taper relief surface of wanting required for the present invention, in addition, also thermoplastic material can be heated near the softening point, impress the surface of this thermoplastic material again with the masterplate of making, in this way, per hour can process thousands of square metres of plastic sheetings with embossment pattern.Then these shaping things are carried out surface treatment, metal cladding or metal and dielectric film, the reflecting surface that has certain receptivity with formation.In addition, also the reflecting surface of flat film can be plated with metal or metal sandwich earlier, or after metal and the dielectric interlayer, impress and form with masterplate again with embossment pattern.What deserves to be explained is, what cover on the reflecting surface with embossment pattern can be the material of low-k, also can be to have the very organic material of the metallic film of strong adhesive force, can also plate the glass material of metal or metal and dielectric film on the surface of embossment pattern, require differently with absorptivity can to select the different taper relief surface that optical element of the present invention is had to carry out surface-treated metal material and oxide according to reflection.Specifically, the metal membrane material of embossment pattern surface plating can be selected, golden Au, silver-colored Ag, copper Cu, aluminium Al, chromium Cr, nickel, tantalum Ta, titanium Ti, tin Sn, molybdenum Mo, zinc Zn, and metal material is formed more than two kinds in the middle of their alloy.The dielectric film of embossment pattern surface plating can be an oxide, or nitride or hydride or boride or carbonide, and its coating process is undertaken by existing coating process.
Claims (17)
1, the control surface pattern changes the optical element of direct reflection, employing can weaken electromagnetic wave along object macro surface direct reflection, and can reduce its total reflectivity and play the optical element of optical trap effect, it is characterized in that there is the some single cone taper embossment that rearranges straggly that just differs on the surface that this optical element has reflection and receptivity.
2, control surface pattern according to claim 1 changes the optical element of direct reflection, it is characterized in that, the basic repetitive of surface taper embossment be shaped as cone (2) or round platform, the height of cone (2) or diameter and the same order of magnitude of electromagnetic wavelength.
3, control surface pattern according to claim 1 changes the optical element of direct reflection, it is characterized in that, the basic repetitive of surface taper embossment be shaped as pyramid or the cone shape of triangular pyramidal (1) or polygonal pyramid (3) and the cone array of combination thereof, it is coarse stepped that the rounded and faceted pebble in the top of cone is, the same order of magnitude of the height of cone or width and electromagnetic wavelength.
4, control surface pattern according to claim 1 changes the optical element of direct reflection, it is characterized in that the height of surperficial taper embossment is between 0.1 micron to 2 millimeters.
5, control surface pattern according to claim 1 changes the optical element of direct reflection, it is characterized in that, the floorage of each repetitive of surperficial taper embossment is 0.04 square micron to 8 square millimeter.
6, control surface pattern according to claim 1 changes the method for making of the optical element of direct reflection, adopt stencil duplicating technology, it is characterized in that, on masterplate, evaporate organic material with embossment pattern, make that it solidifies on masterplate, be shaped in the polymerization process, the thing that must be shaped after the demoulding carries out surface treatment again.
7, control surface pattern according to claim 6 changes the method for making of the optical element of direct reflection, it is characterized in that, on sheet metal or glass or organic material, the application photoetching corrosion is made the confession of taper shape or pyramid embossing pattern and is duplicated the masterplate of usefulness.
8, control surface pattern according to claim 6 changes the method for making of the optical element of direct reflection, it is characterized in that, with macroscopical cone or pyramid array as mould, with holographic method epitome, then on special plastic plate, make required conical buoy engraving patterns as master, behind plating nickel on surface, as supplying to duplicate the masterplate of usefulness.
9, control surface pattern according to claim 1 changes the method for making of the optical element of direct reflection, adopt stencil duplicating technology, it is characterized in that, has the masterplate top-pour heat injection moulding material of embossment pattern, form through the cooled and solidified polymerization process, the thing that must be shaped after the demoulding carries out surface treatment again.
10, control surface pattern according to claim 1 changes the method for making of the optical element of direct reflection, adopt stencil duplicating technology, it is characterized in that, thermoplastic film is heated to softening point, re-use masterplate and impress and form, form thing and carry out surface treatment again with embossment pattern.
11, control surface pattern according to claim 1 changes the method for making of the optical element of direct reflection, adopt stencil duplicating technology, it is characterized in that, reflecting surface with flat film plates with metal or metal sandwich earlier, or behind metal and the metal medium interlayer, form with masterplate impression again with embossment pattern.
12, change the method for making of the optical element of direct reflections according to claim 6,9 or 10 described control surface patterns, it is characterized in that, carry out surface treatment and be covering the material of low-k at the reflecting surface of the embossment pattern of shaping thing.
13, change the method for making of the optical element of direct reflections according to claim 6,9 or 10 described control surface patterns, it is characterized in that, carry out surface treatment and be on the reflecting surface of the embossment pattern of shaping thing, being coated with the organic material of metallic film.
14, change the method for making of the optical element of direct reflections according to claim 6,9 or 10 described control surface patterns, it is characterized in that, carry out surface treatment and be being coated with the organic material of metal and dielectric film at the reflecting surface of the embossment pattern of shaping thing.
15, change the method for making of the optical element of direct reflection according to claim 6,9 or 10 described control surface patterns, it is characterized in that, carry out surface treatment and be being coated with the glass material of metal or metal and dielectric film at the reflecting surface of the embossment pattern of shaping thing.
16, change the method for making of the optical element of direct reflection according to claim 6,9 or 10 described control surface patterns, it is characterized in that, when carrying out surface treatment, be the alloy material of golden Au, silver-colored Ag, copper Cu, aluminium Al, chromium Cr, nickel, tantalum Ta, titanium Ti, tin Sn, molybdenum Mo, zinc Zn and combination thereof at the metal membrane material of the reflecting surface plating of the embossment pattern of shaping thing.
17, change the method for making of the optical element of direct reflection according to claim 6,9 or 10 described control surface patterns, it is characterized in that, when carrying out surface treatment, dielectric film in the reflecting surface plating of the embossment pattern of shaping thing is an oxide, or nitride or hydride, or boride, or carbonide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96119670 CN1157929A (en) | 1996-10-31 | 1996-10-31 | Optical element for controling surface image changing mirror surface reflection and its manufacturing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96119670 CN1157929A (en) | 1996-10-31 | 1996-10-31 | Optical element for controling surface image changing mirror surface reflection and its manufacturing method |
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| CN1157929A true CN1157929A (en) | 1997-08-27 |
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| CN 96119670 Pending CN1157929A (en) | 1996-10-31 | 1996-10-31 | Optical element for controling surface image changing mirror surface reflection and its manufacturing method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102407624A (en) * | 2011-08-15 | 2012-04-11 | 西北核技术研究所 | Laser-irradiation-resistant diffuse reflection metal panel and manufacturing method thereof |
| CN105333398A (en) * | 2015-12-01 | 2016-02-17 | 济南昊泽环保科技有限公司 | Diffuse reflection structure for lamp groove inner wall |
| DE102015216994A1 (en) | 2014-09-05 | 2016-03-10 | Sai Kit Yim | Photovoltaic glass with independent light traps |
| CN106125169A (en) * | 2015-05-06 | 2016-11-16 | 波音公司 | There is the air force microstructure of submicroscopic structure |
| CN106842394A (en) * | 2010-06-25 | 2017-06-13 | 安德鲁·理查德·帕克 | Optical effect structure |
| CN107004948A (en) * | 2014-12-09 | 2017-08-01 | 3M创新有限公司 | With the system by the hidden telecommunication element of the catoptric arrangement including Polymer optical multilayer film |
| CN108415109A (en) * | 2018-01-30 | 2018-08-17 | 常熟市浙大紫金光电技术研究中心 | A kind of optics retroreflector and reflector array |
| CN113573841A (en) * | 2019-03-22 | 2021-10-29 | 4Jet 微科技股份有限公司 | Apparatus and method for generating a plurality of trenches |
-
1996
- 1996-10-31 CN CN 96119670 patent/CN1157929A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106842394A (en) * | 2010-06-25 | 2017-06-13 | 安德鲁·理查德·帕克 | Optical effect structure |
| CN102407624A (en) * | 2011-08-15 | 2012-04-11 | 西北核技术研究所 | Laser-irradiation-resistant diffuse reflection metal panel and manufacturing method thereof |
| CN102407624B (en) * | 2011-08-15 | 2014-09-17 | 西北核技术研究所 | Laser-irradiation-resistant diffuse reflection metal panel and manufacturing method thereof |
| DE102015216994A1 (en) | 2014-09-05 | 2016-03-10 | Sai Kit Yim | Photovoltaic glass with independent light traps |
| CN107004948A (en) * | 2014-12-09 | 2017-08-01 | 3M创新有限公司 | With the system by the hidden telecommunication element of the catoptric arrangement including Polymer optical multilayer film |
| US10720698B2 (en) | 2014-12-09 | 2020-07-21 | 3M Innovative Properties Company | System having a telecommunications element being concealed by a reflective structure comprising a polymer optical multilayer film |
| CN107004948B (en) * | 2014-12-09 | 2021-12-24 | 3M创新有限公司 | System with covert communication element and method of concealing an outdoor communication element |
| CN106125169A (en) * | 2015-05-06 | 2016-11-16 | 波音公司 | There is the air force microstructure of submicroscopic structure |
| CN106125169B (en) * | 2015-05-06 | 2020-08-28 | 波音公司 | Aerodynamic microstructures with submicroscopic structures |
| CN105333398A (en) * | 2015-12-01 | 2016-02-17 | 济南昊泽环保科技有限公司 | Diffuse reflection structure for lamp groove inner wall |
| CN108415109A (en) * | 2018-01-30 | 2018-08-17 | 常熟市浙大紫金光电技术研究中心 | A kind of optics retroreflector and reflector array |
| CN113573841A (en) * | 2019-03-22 | 2021-10-29 | 4Jet 微科技股份有限公司 | Apparatus and method for generating a plurality of trenches |
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