CN107329197A - Method, concave reflection lens array and the light fixture of reflection mirror array are pasted on concave structure - Google Patents

Method, concave reflection lens array and the light fixture of reflection mirror array are pasted on concave structure Download PDF

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Publication number
CN107329197A
CN107329197A CN201710449031.9A CN201710449031A CN107329197A CN 107329197 A CN107329197 A CN 107329197A CN 201710449031 A CN201710449031 A CN 201710449031A CN 107329197 A CN107329197 A CN 107329197A
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CN
China
Prior art keywords
array
cut
concave
concave structure
speculum
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710449031.9A
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Chinese (zh)
Inventor
杨毅
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Shanghai Anming Technology Center (limited partnership)
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杨毅
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Priority to CN201710449031.9A priority Critical patent/CN107329197A/en
Publication of CN107329197A publication Critical patent/CN107329197A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/08Mirrors
    • G02B5/10Mirrors with curved faces
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/64Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/68Details of reflectors forming part of the light source
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/69Details of refractors forming part of the light source
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00Reflectors for light sources
    • F21V7/0025Combination of two or more reflectors for a single light source
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/30Semiconductor lasers

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

A kind of method that reflection mirror array is mounted on concave structure is proposed, is comprised the following steps:A. by monoblock, simultaneously mark the speculum of array cut another side overlay film, with cut face in face of concave structure and integrally pressing laminating, there is pressure sensitive adhesive in the cut face that wherein there are pressure sensitive adhesive or speculum in concave structure surface;B. the array cut of speculum is pressed, its part is split at cut, while by pressing the Performance of Pressure Sensitive Adhesive between the part for making to split and concave structure;C. the overlay film on speculum is thrown off.Also propose the concave reflection lens array and light fixture using this method.Using this method, multiple small reflectors are neatly efficiently adhered on a concave structure, and the progress without one piece one piece is mounted.And this method is utilized, easily realize the regular attachment of small reflector of different shapes.

Description

Method, concave reflection lens array and the light fixture of reflection mirror array are pasted on concave structure
Technical field
The present invention relates to lighting field, particularly decorative lighting field.
Background technology
Concave reflection lens array is in daily use in decorative lighting.Current processing method is, the gluing on concave surface, by The small piece of reflective mirror split is stained with one by one by hand, in solidified glue.So the problem of, has a lot.It is by hand first The speed put is slow, and cost is high.Second is, for the ease of production control, typically only to put the small piece of reflective mirror of same shape(Example Such as square), put on a concave surface various shapes, size small reflector for production control for it is highly difficult.3rd It is that can not cover full concave surface, always has gap between small piece of reflective mirror.
The content of the invention
The present invention proposes a kind of method that reflection mirror array is mounted on concave structure, comprises the following steps:
A. by monoblock, the speculum of array cut another side overlay film is simultaneously marked, with cut face in face of concave structure and overall Pressing laminating, there is pressure sensitive adhesive in the cut face that wherein there are pressure sensitive adhesive or speculum in concave structure surface;
B. press the array cut of speculum, its part is split at cut, at the same by pressing make the part split with it is recessed Performance of Pressure Sensitive Adhesive between the structure of face;
C. the overlay film on speculum is thrown off.
The present invention also proposes a kind of concave reflection lens array, and the concave reflection lens array includes concave structure and multiple planes Speculum, surface alignment of the plurality of plane mirror along concave structure is into array;The concave reflection lens array is used according to upper The method that reflection mirror array is mounted on concave structure stated is made.
The present invention also proposes a kind of light fixture, including outgoing collimated light beam light-emitting device and positioned at light-emitting device light path rear end Concave reflection lens array, the sub-light of multiple convergences is formed after the reflection of concave reflection lens array from the light of light-emitting device outgoing Beam.
Using this method, multiple small reflectors are neatly efficiently adhered on a concave structure, without one piece one The progress of block is mounted.And this method is utilized, easily realize the regular attachment of small reflector of different shapes.
Brief description of the drawings
Fig. 1 illustrates the schematic diagram of a step in the present invention;
Fig. 2 illustrates the schematic diagram of another step of the invention;
Fig. 3 illustrates the result schematic diagram after the step performed shown in Fig. 2;
Fig. 4,5 and 6 show respectively the schematic diagram of possible score array on speculum;
Fig. 7 illustrates the structural representation of light fixture of the present invention;
Fig. 8 illustrates the structural representation of another embodiment of light fixture of the present invention.
Embodiment
The present invention proposes a kind of method that reflection mirror array is mounted on concave structure, comprises the following steps:
A. by monoblock, the speculum of array cut another side overlay film is simultaneously marked, with cut face in face of concave structure and overall Pressing laminating, there is pressure sensitive adhesive on wherein concave structure surface;
B. press the array cut of speculum, its part is split at cut, at the same by pressing make the part split with it is recessed Performance of Pressure Sensitive Adhesive between the structure of face is firm;
C. the overlay film on speculum is taken off.
The structural representation of each part corresponding to step A is as shown in Figure 1.The speculum 111 of monoblock includes two faces, figure In lower surface marked array cut 112a, 112b, 112c, 112d, 112e, 112f and 112g, upper surface is pasted with film 113.By cut face(Lower surface)In face of the concave surface 114a of concave structure 114, overall depresses.There is pressure on concave surface 114a surfaces Quick glue.It is apparent for expression, 7 array cuts are only drawn in Fig. 1, array cut in practice may be much more.
Appearance after step A is performed is as shown in Figure 2.The speculum of monoblock is integrally pressing pressure, can be along some cuts Fracture.For example represent, be broken along cut 212d in fig. 2.The cut being broken in practice makes random, is pressed with overall The impetus of pressure is relevant.Generally, for the impetus integrally pressed for concave structure can with centre annex because It is relatively low near central point.Certainly pressing center edge region is also possible.
Pressure is integrally being pressed, the speculum of monoblock is broken along some cuts, forming polylith speculum.This polylith is anti- Penetrating past contact on mirror includes unbroken cut, as shown in Figure 2.Due to the effect of the pressure of overall pressing, the reflection of this polylith The edge of mirror is fixed together by pressure sensitive adhesive 216 and concave structure face 214a.Due to the effect of film 213, the reflection of this polylith Mirror still connects together by film 213.Accordingly even when there is the no and securing mirror blocks of concave structure face 214a, so Mirror block also will not individually fall down, but be connected to that the state for being close to concave structure face is presented by film 213, under The action of one step is prepared.
There is pressure sensitive adhesive on concave structure surface in this embodiment, and the cut face of speculum is had pressure-sensitive Glue, is equally reached and regard speculum as the overall purpose mutually fixed with concave structure.
Multiple hollow arrows in execution step B, Fig. 2 represent the array cut progress office to speculum in this state The push action in portion.Result after step B is performed is as shown in Figure 3.Under the pressure of push action, speculum is along array cut one One breaks apart to form many sub- speculum 311a, 311b, 311c, 311d, 311e, 311f, 311g etc..Because area is small, these The compactness of local sub- speculum and concave surface 314a is more preferable(Because middle space is small), therefore can lead under press pressure Cross pressure sensitive adhesive(It is not drawn into figure)It is Nian Jie with concave structure face 314a.Film 313, which is still served, in this step connects many The effect of individual sub- speculum, the action of the local array cut of execution pressing that thus can be calmly and without worry to occur by Come off in the firmly uneven sub- speculum of part caused.
Finally, execution step C throws off the overlay film on speculum, it is possible to realize the patch of concave structure upper reflector array Dress.
Concave reflection lens array can be quickly manufactured using the present invention, and with no gap, small reflector shape Can be with custom design the advantages of.
Due to step A directly used monoblock, simultaneously mark the speculum of array cut another side overlay film, it is and such Speculum is often also required to be processed(It can certainly bring after outward processing and directly use), therefore may be used also before step A Step can be included:
A0. the another side of monoblock, face overlay film speculum is marked into array cut.
It is highly developed technology to mark array cut on the mirror, and can manually complete can more be completed with machine.Draw Trace is not to cut speculum completely open, but marks the partial groove of 112a in such as Fig. 1, uses diamond glass cutter etc. Cutter can just be realized.
For speculum, reflecting surface is generally comprised, reflecting surface is formed by plating reflectance coating, easily stain or occur Damage.In order to protect this reflecting surface, our overlay films on this face preferably.The film so covered(Such as the film in Fig. 1 113)Except in addition to foregoing effect, while can also play a part of protecting reflecting surface.It is corresponding, speculum it is another Array cut is just marked on face.
Used pressure sensitive adhesive is exactly double faced adhesive tape in the embodiment above, naturally it is also possible to use other pressure sensitive adhesives.Due to The bonding force of pressure sensitive adhesive is not very strong, is requiring bonding firmness high occasion, preferably also include step after step B:
D:Glue is penetrated between reflection mirror array and concave structure, and is solidified.
So reflection mirror array and concave structure are pre-fixed using pressure sensitive adhesive, the glue that recycle step D penetrates into It is completely fixed, it becomes possible to meet the requirement of higher bonding firmness.It is worth noting that, step D can be after step c Carry out, it is also possible to carried out before step C.
Inventor has found in practical operation, it is preferred that the spacing in array cut between adjacent cut is more than speculum Thickness, so when pushed speculum more easily along cut breaking apart neatly, and be not easy run-off the straight, crushing type Fracture.
By above description it is appreciated that the array cut on speculum just determines the shape of each sub- speculum.And The shape of each sub- speculum can be different.Fig. 4,5 and 6 list the array cut shape of possible speculum respectively, The profile of the speculum of monoblock is all circular in figure, and the line in circle is exactly array cut.In Fig. 4, horizontal line is uniform , sparse right side is intensive on the left of vertical curve, and the sub- speculum for being so achieved that left side is sparse and the sub- speculum on right side is intensive Situation.In Figure 5, horizontal line is that the intensive downside in upside is sparse, and sparse right side is intensive on the left of vertical curve, is so achieved that a left side Under it is sub- speculum is sparse and situation that the sub- speculum of upper right is intensive.In figure 6, horizontal line is to converge to the right, vertical curve The sparse right side in left side is intensive, so equally realize left side it is sub- speculum is sparse and situation that the sub- speculum on right side is intensive. Therefore it is different using the spacing between the adjacent cut of diverse location in array cut, it is possible to realize the different son reflection of size Mirror.
In Fig. 4 implementation, the size of the sub- speculum on right side, in only the horizontal direction above less than the sub- speculum in left side Size, in the vertical direction is then identical.And Fig. 5 and Fig. 6 implementation, from 4 showed unlike, can be real Length of the sub- speculum in an existing region in two mutually orthogonal direction dimensions is both less than the son reflection in another region Length of the mirror in both direction dimension.Such visual effect is more preferable, so being more preferred mode.Drawn corresponding to array For trace, it is preferred that array cut is divided in multiple regions of formation, at least including first area and second area, two First area is both less than second area in individual mutually orthogonal direction dimension.
The present invention also proposes a kind of concave reflection lens array, and the concave reflection lens array includes concave substrate and multiple planes Speculum, surface alignment of the plurality of plane mirror along concave substrate is into array;The concave reflection lens array is using above-mentioned The method that reflection mirror array is mounted on concave structure is made.
The present invention also proposes a kind of light fixture, and its structural representation is as shown in Figure 7.The light fixture includes outgoing collimated light beam 743 Light-emitting device 730 and the concave reflection lens array 701 positioned at the light path rear end of light-emitting device 730.The concave reflection lens array is adopted It is made with the above-mentioned method that reflection mirror array is mounted on concave structure.Passed through from the collimated light 743 of light-emitting device outgoing Cross the beamlet 744 that multiple convergences are formed after concave reflection lens array 701 reflects.Because incident light 743 is collimation, speculum Do not change the collimation of light beam, therefore each beamlet is also collimation.So it can be formed at a distance(Such as several meters outer)Shape Into the decorative illumination effect of multiple small luminous points.
In the present embodiment, light-emitting device 730 includes light source, and light source includes laser diode 731, flourescent sheet 732, laser The laser 741 that diode 731 is sent focuses on flourescent sheet 732 and excites flourescent sheet 732 to send fluorescence 742;Light-emitting device is also wrapped Light collimating element 733 is included, the light collimating element 733 is used to receiving the light that light source sends and is collimated outgoing.Laser diode 731 laser sent can pool a point to excite flourescent sheet so as to produce the white light of high brightness, and such light passes through light The depth of parallelism is very high after collimating element 733 is collimated, therefore resulting small luminous point after the reflection of concave reflection lens array 701 It is just smaller brighter.Certainly, the present embodiment is not limited to use LASER Light Source.
Embodiment shown in Fig. 8 is the further improvement in Fig. 7 embodiment.In the light fixture of the present embodiment, it is located at The concave reflection lens array of light-emitting device light path rear end includes multiple plane mirrors, and the plurality of plane mirror is along a concave surface Be arranged in array, from the light of light-emitting device outgoing formed after concave reflection lens array reflection multiple beamlet 825u, 825v and 825w etc., the plurality of beamlet is irradiated in target face 851 and forms multiple sub-light spots.
It is obvious that beamlet 825u is incident in the incidence angle of target face 851(Incident ray is with target face in incidence point normal Angle), more than the incidence angle that beamlet 825w is incident in target face 851.Assuming that in concave reflection lens array, unit area Plane mirror number(That is the density of plane mirror)It is uniform, then due to the influence of crevice projection angle, beamlet 825u The distance of the luminous point formed in the luminous point of the formation of target face 851 to adjacent beamlet in target face 851, is just naturally larger than beamlet The distance for the luminous point that 825w is formed in the luminous point that target face 851 is formed to adjacent beamlet in target face 851.So in target face The array of light spots formed on 851 is exactly uneven:Region 852u incident beamlet 825u densities of points of light is less than beamlet Region 852w incident 825w densities of points of light.
However, uniform densities of points of light can realize more preferable visual effect.In order to realize more uniform densities of points of light, In the present embodiment, it is contemplated that the region 814u on concave reflection lens array reflects to form beamlet 825u, region 814w reflections Form beamlet 825w, then make the quantity of unit area plane mirror on the 814u of region(The density of plane mirror)It is more than The quantity of region 814w unit area plane mirror, it is possible to the adjacent spot that at least part of compensation crevice projection angle is brought The distance between difference.For beamlet 825v and beamlet 825w, the incidence angle that both are incident in target face 851 is close, because This can set the similar density of plane mirror on its corresponding region 814v and 814w.
In short, compact district and rarefaction, the unit area plane reflection of compact district are included on concave reflection lens array The quantity of mirror is more than the son of outgoing in the quantity of the unit area plane mirror of rarefaction, and plane mirror in compact district Light beam is incident in the average angle of incidence of target face and is incident in target more than the beamlet of outgoing on the plane mirror in rarefaction The average angle of incidence in face.So compact district relies on higher plane mirror density, to compensate the beamlet of its reflection in target The influence that the larger spot distance brought of incidence angle is widened on face so that it is adjacent that compact district and rarefaction are formed in target face Spot distance is closer.In the present embodiment, region 814u is exactly compact district on concave reflection lens array, and region 814u is exactly dilute Dredge area.In the present embodiment, compact district is located on concave surface close to one end of light exit direction, and rarefaction is located on concave surface away from light One end of exit direction.It is appreciated that there may be multipair compact district and rarefaction on concave reflection lens array.Fig. 4, Fig. 5, figure 6 be exactly the citing that compact district and rarefaction are realized in concave reflection lens array.For example in Fig. 4 and Fig. 5, left side is rarefaction, right Side is compact district.In figure 6, lower-left is that rarefaction upper right is compact district.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills Art field, is included within the scope of the present invention.

Claims (10)

1. a kind of method that reflection mirror array is mounted on concave structure, it is characterised in that comprise the following steps:
A. by monoblock, the speculum of array cut another side overlay film is simultaneously marked, with cut face in face of concave structure and overall Pressing laminating, there is pressure sensitive adhesive in the cut face that wherein there are pressure sensitive adhesive or speculum in concave structure surface;
B. press the array cut of speculum, its part is split at cut, at the same by pressing make the part split with it is recessed Performance of Pressure Sensitive Adhesive between the structure of face;
C. the overlay film on speculum is thrown off.
2. the method according to claim 1 that reflection mirror array is mounted on concave structure, it is characterised in that in step A It is preceding also to include step:
A0. the another side of monoblock, face overlay film speculum is marked into array cut.
3. the method according to claim 1 or 2 that reflection mirror array is mounted on concave structure, it is characterised in that described Speculum includes being marked array cut on overlay film on reflecting surface, the reflecting surface, another side.
4. the method according to claim 1 or 2 that reflection mirror array is mounted on concave structure, it is characterised in that in step Also include step after rapid B:
D:Glue is penetrated between reflection mirror array and concave structure, and is solidified.
5. the method according to claim 1 or 2 that reflection mirror array is mounted on concave structure, it is characterised in that described Spacing in array cut between adjacent cut is more than the thickness of speculum.
6. the method according to claim 1 or 2 that reflection mirror array is mounted on concave structure, it is characterised in that described In array cut, the spacing between the adjacent cut of diverse location is different.
7. the method according to claim 6 that reflection mirror array is mounted on concave structure, it is characterised in that the array Cut is divided in multiple regions of formation, at least including first area and second area, in two mutually orthogonal direction dimensions First area is both less than second area on degree.
8. a kind of concave reflection lens array, it is characterised in that the concave reflection lens array includes concave structure and multiple planes are anti- Penetrate mirror, surface alignment of the plurality of plane mirror along concave structure is into array;The concave reflection lens array is used according to right It is required that the method that reflection mirror array is mounted on concave structure any one of 1 to 7 is made.
9. a kind of light fixture, it is characterised in that light-emitting device including outgoing collimated light beam and positioned at light-emitting device light path rear end Concave reflection lens array according to claim 8, the light from light-emitting device outgoing is after the reflection of concave reflection lens array Form the beamlet of multiple convergences.
10. light fixture according to claim 9, it is characterised in that the multiple beamlet is irradiated in target face and forms multiple Sub-light spot;Include compact district and rarefaction on concave reflection lens array, the quantity of the unit area plane mirror of compact district is big In the quantity of the unit area plane mirror of rarefaction, and on plane mirror in compact district, the beamlet of outgoing is incident in The average angle of incidence of target face be more than rarefaction in plane mirror on outgoing beamlet be incident in target face be averaged into Firing angle.
CN201710449031.9A 2017-06-14 2017-06-14 Method, concave reflection lens array and the light fixture of reflection mirror array are pasted on concave structure Pending CN107329197A (en)

Priority Applications (1)

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CN201710449031.9A CN107329197A (en) 2017-06-14 2017-06-14 Method, concave reflection lens array and the light fixture of reflection mirror array are pasted on concave structure

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Application Number Priority Date Filing Date Title
CN201710449031.9A CN107329197A (en) 2017-06-14 2017-06-14 Method, concave reflection lens array and the light fixture of reflection mirror array are pasted on concave structure

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CN107329197A true CN107329197A (en) 2017-11-07

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102463651A (en) * 2010-11-04 2012-05-23 茂杰光电有限公司 Manufacture method for high precision solar reflector and structure of solar reflector
CN102998773A (en) * 2012-12-15 2013-03-27 大连宏海新能源发展有限公司 Bonding process of solar condenser lens assembly
CN103052602A (en) * 2010-08-20 2013-04-17 法国圣戈班玻璃厂 Curved mirror obtained by pressing
CN103713374A (en) * 2013-12-25 2014-04-09 青海中控太阳能发电有限公司 Method for manufacturing heliostats with mirror surfaces having different curvatures
CN204667037U (en) * 2015-06-08 2015-09-23 合肥恒锐光电科技有限公司 A kind of projection laser engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103052602A (en) * 2010-08-20 2013-04-17 法国圣戈班玻璃厂 Curved mirror obtained by pressing
CN102463651A (en) * 2010-11-04 2012-05-23 茂杰光电有限公司 Manufacture method for high precision solar reflector and structure of solar reflector
CN102998773A (en) * 2012-12-15 2013-03-27 大连宏海新能源发展有限公司 Bonding process of solar condenser lens assembly
CN103713374A (en) * 2013-12-25 2014-04-09 青海中控太阳能发电有限公司 Method for manufacturing heliostats with mirror surfaces having different curvatures
CN204667037U (en) * 2015-06-08 2015-09-23 合肥恒锐光电科技有限公司 A kind of projection laser engine

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