CN106853546A - Microlens array core rod and preparation method thereof, microlens array and preparation method thereof - Google Patents
Microlens array core rod and preparation method thereof, microlens array and preparation method thereof Download PDFInfo
- Publication number
- CN106853546A CN106853546A CN201510902888.2A CN201510902888A CN106853546A CN 106853546 A CN106853546 A CN 106853546A CN 201510902888 A CN201510902888 A CN 201510902888A CN 106853546 A CN106853546 A CN 106853546A
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- Prior art keywords
- microlens array
- core rod
- preparation
- recess
- array
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D79/00—Methods, machines, or devices not covered elsewhere, for working metal by removal of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/78—Measuring, controlling or regulating of temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76498—Pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76531—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76551—Time
Abstract
The present invention discloses a kind of microlens array core rod and preparation method thereof, microlens array and preparation method thereof.The preparation method of microlens array core rod is comprised the following steps：One cylindrical fixture is provided, the cylindrical fixture is coaxially installed on the main shaft of a ultra-precision machine tool；One sheet metal is provided, the sheet metal is removably fitted and is fixed on the external cylindrical surface of the cylindrical fixture, form a metal cylinder, the center line of the metal cylinder overlaps with the main shaft axis；Structure based on the microlens array, makes the cutter of the ultra-precision machine tool process recess array in the metal tube outer surface；The metal cylinder that recess array will be machined with separates the fixture, forms the microlens array core rod.The uniformity of each recess is good in the microlens array core rod be made up of the present invention, and the quality of microlens array core rod is substantially improved.Further, the quality of the microlens array for being processed by the microlens array core rod is also substantially improved therewith.
Description
Technical field
The present invention relates to a kind of microlens array core rod and preparation method thereof, microlens array and its making side
Method.
Background technology
In recent years, in optoelectronic areas, the use of microlens array is more and more universal.Microlens array
Can be used to improve the property of electrooptical device such as solar panel, photodetector, light-emitting device, imaging system etc.,
The current research on microlens array focuses primarily upon imaging technique, such as photography, 3D rendering and display
Technology etc..
The preparation method of traditional micro lens array mainly has following several：Using injection, casting, hot pressing,
The processing optical plastic production micro lens array such as turning.But column defects in the presence of these conventional methods：System
Make high cost, the consuming time is long, and the surface flatness and uniformity of lenticule are not high enough.
In recent years, the method that appearance makes micro lens array of Ultra-precision CNC Machine, mainly includes as follows
Step：1) metal core rod is made, there is recess array on metal core rod；2) using the injection of metal core rod
Shaping forms microlens array.
When metal core rod is made, flat metallic plate is arranged on the end face of main shaft, according to micro-
Lens array shape precise control cutter path cuts and lenticule battle array to the one side of flat metallic plate
The recess array that row match, so as to be made metal core rod.Cutter adds to each recess in recess array
Work order is to carry out machining successively from center to periphery, on X/Y plane, Tool in Cutting point path
It is spirality.
In the micro- coordinate measuring system of optical 3-dimensional, the metal core rod made through above-mentioned conventional method is checked,
It was found that at least there is following defect in metal core surface：Have by cutting tool on each recess of metal core rod
Deng the scratch of formation, and scratch position is irregular, therefore the uniformity of each recess is poor in metal core rod.It is logical
Cross the problem that the microlens array that the metal pattern core is molded equally exists the uniformity difference of each lenticule.
The content of the invention
One of main purpose of the invention is at least one defect for overcoming above-mentioned prior art, is carried
For a kind of preparation method of microlens array core rod, it can produce the good lenticule battle array of each recess uniformity
Row core rod；
Another main purpose of the invention is the preparation method and lenticule for providing a kind of microlens array
Array.
For achieving the above object, the present invention is adopted the following technical scheme that：
According to an aspect of the present invention, a kind of preparation method of microlens array core rod, including it is following
Step：
One cylindrical fixture is provided, the cylindrical fixture is coaxially installed on the main shaft of a ultra-precision machine tool；
One sheet metal is provided, the sheet metal is removably fitted and is fixed on the outside cylinder of the cylindrical fixture
Face, forms a metal cylinder, and the center line of the metal cylinder overlaps with the main shaft axis；
Structure based on the microlens array, makes the cutter of the ultra-precision machine tool add in the metal tube outer surface
Work goes out recess array；The metal cylinder that recess array will be machined with separates the main shaft, forms the lenticule
Array as mold core.
In one embodiment, after the metal cylinder is separated into the cylindrical fixture, also including by institute
The step of stating metal cylinder and be organized into sheet metal.
In one embodiment, also comprise the following steps：The recess battle array of appropriate area is chosen on sheet metal
Row, remove the part outside the appropriate area.
In one embodiment, during recess array is processed, the direction of feed of the cutter perpendicular to
The main shaft axis.
In one embodiment, during the every a line recess for processing the recess array, superfinishing is controlled
Tool in Cutting point coordinates (the C of close lathec, Xc, Zc) meet formula (1)：
Wherein (Xp,Yp,Zp) for the cutting point in the coordinate of plane coordinate system (X, Y, Z), meet formula
(2)：
Wherein, L is the length of microlens array, and W is the width of microlens array, and p is lenticule battle array
The diameter of each lenticule in row；D is metal cylinder external diameter, and R is tool radius, and k is microlens array
Row sequence number, and k=0,1...；N is the serial number of each lenticule in every row microlens array, n=0,1,2...；
The cutter processes every a line recess of the recess array line by line.
According to another aspect of the present invention, a kind of microlens array core rod, by of the present invention micro-
The preparation method of lens array core rod is made.
According to an aspect of the present invention, a kind of preparation method of microlens array, further comprising the steps of：
Offer is made microlens array core rod by the preparation method of microlens array core rod of the present invention；
A mould is provided, the mould includes two patterns of mutual cooperation work, wherein having in a pattern
Die cavity；The microlens array core rod is put into the die cavity, in the microlens array core rod curved surface
In the case of, microlens array core rod is protruded towards another pattern direction；
Injection molding：By two pattern matched moulds of the mould, and to moulding mixture is injected into the die cavity, obtain
The microlens array.
In one embodiment, the technological parameter of the injection molding is：Mold temperature is 100~110 DEG C,
Injection temperature is 225~235 DEG C, and dwell pressure is 1100~1300MPa, and the dwell time is 15~25 seconds,
Cool time is 25~35 seconds.Further, the technological parameter of the injection molding is：Mold temperature is
105 DEG C, injection temperature is 229 DEG C, and dwell pressure is 1200MPa, and the dwell time is 20 seconds, cooling
Time is 30 seconds.
According to another aspect of the present invention, a kind of microlens array, by lenticule of the present invention battle array
The preparation method of row is made.
As shown from the above technical solution, advantages and positive effects of the present invention are：Lenticule battle array of the present invention
In the preparation method of row core rod, sheet metal is removably fitted and is fixed on the outside cylinder of a cylindrical fixture
On face, a metal cylinder is formed, cutter processes recess array line by line in metal tube outer surface, is formed micro-
Lens array core rod, such that it is able to reduce scuffing of the cutter on recess surface, therefore the microlens array being made
The uniformity of each recess is good in core rod, and the quality of microlens array core rod is substantially improved.Further, by
The quality of the microlens array that the microlens array core rod is processed also is substantially improved therewith.
Brief description of the drawings
It is of the invention each by being considered in conjunction with the accompanying following the following detailed description of the embodiment of the present invention
Target, feature and advantage is planted to will become apparent.Accompanying drawing is only exemplary diagram of the invention,
It is not necessarily drawn to scale.In the accompanying drawings, same reference represents same or similar all the time
Part.Wherein：
Fig. 1 is the stream of the preparation method of the microlens array according to an illustrative embodiments of the invention
Journey schematic diagram.
Fig. 2 is the preparation method of the microlens array core rod according to an illustrative embodiments of the invention
The schematic diagram of middle main shaft, cutter and metal cylinder position relationship.
Fig. 3 A are the structural representations of the microlens array according to an illustrative embodiments of the invention.
Fig. 3 B are the side views of Fig. 3 A.
Fig. 4 represents a kind of experiment measurement of the microlens array core rod according to an illustrative embodiments
Result figure.
Specific embodiment
Example embodiment is described more fully with below with reference to the accompanying drawings.However, example embodiment can
Implement in a variety of forms, and be not understood as limited to implementation method set forth herein；Conversely, there is provided this
A little implementation methods cause that the present invention fully and completely, and the design of example embodiment will be passed on comprehensively
To those skilled in the art.Identical reference represents same or similar structure in figure, thus will
Omit their detailed description.
The preparation method of microlens array core rod
Referring to Fig. 1, Fig. 1 is the microlens array according to an illustrative embodiments of the invention
The schematic flow sheet of preparation method, contains the making stream of microlens array core rod in the schematic flow sheet
Journey.The preparation method of the microlens array core rod according to an illustrative embodiments of the invention, bag
Include following steps：
One cylindrical fixture 100 is provided, the cylindrical fixture 100 is installed on the master of a ultra-precision machine tool
Shaft end, and make the center line of the cylindrical fixture 100 coaxial with the axis of machine tool chief axis.Cylinder
Fixture 100 can be a cylinder, but the present invention is not restricted to this.In the present invention, cylindrical fixture
100 can also be other any structures, as long as having a cylindrical outer surface.
A sheet metal 10 is provided, the sheet metal 10 can be a copper sheet or aluminium flake or other sheet metals.Will
The sheet metal 10 is removably fitted and is fixed on the external cylindrical surface of cylindrical fixture 100, forms a metal
Cylinder, the center line of the metal cylinder overlaps with main shaft axis.The sheet metal 10 can be by bonding, buckle
Connection or any other dismountable connected mode are fixed on cylindrical fixture 100, and sheet metal 10
The outer surface of cylindrical fixture 100 is entirely fitted in so as to form a metal cylinder coaxial with main shaft.
Structure based on the microlens array, makes the cutter 200 of the ultra-precision machine tool in the metal cylinder appearance
Face processes recess array 20.Wherein, the cutter 200 of the ultra-precision machine tool can be selected and had
The single-point diamond cutter of arc edge.Due to the making side using microlens array core rod of the invention
The microlens array core rod of method manufacture, be in order to process microlens array, therefore microlens array core rod with
Microlens array has uniformity and complementarity in structure.Specifically, microlens array core rod fovea superior
In nest array 20 in the spread pattern of each recess and microlens array each lenticule spread pattern one
Cause, the shape of recess matches with microlens shape in microlens array on microlens array core rod, the two
It is male-female engagement relation.
The metal cylinder that recess array 20 will be machined with separates cylindrical fixture 100, forms microlens array mould
Core.
In the preparation method of above-mentioned microlens array core rod, further, metal cylinder is being separated into cylinder
After clamp 100, also comprise the following steps：Metal cylinder is launched, is flattened and is formed with recess array
20 sheet metal.Standing step is particularly may also include, sheet metal that will be smooth stands a period of time,
Such as 5-20 hours, to eliminate the stress formed during processing recess array 20.
In the preparation method of above-mentioned microlens array core rod, further, metal cylinder is being arranged smooth
Afterwards, also comprise the following steps：The recess array 20 of appropriate area is chosen as needed, removes this suitable
Part outside region, so as to form the recess array of required shape.
In the present invention, as previously described, cylindrical fixture 100 is to be directly mounted at a ultra-precision machine tool
Spindle nose, but the present invention is not limited thereto.It will be appreciated by those skilled in the art that cylinder clevis
Tool 100 can also indirectly be installed on main shaft.For example, the main shaft in ultra-precision machine tool is provided with vacuum
In the case of sucker, then cylindrical fixture 100 can be installed on vacuum cup.No matter cylindrical fixture
100 are directly mounted at main shaft is still installed on main shaft indirectly, be required for ensure cylindrical fixture 100 with
The axiality of main shaft.
Referring to Fig. 2, Fig. 2 is the microlens array mould according to an illustrative embodiments of the invention
The schematic diagram of main shaft, cutter 200 and metal cylinder position relationship in the preparation method of core.Above-mentioned micro-
In the preparation method of lens array core rod, metal cylinder center line overlaps with main shaft axis, cutter 200
Direction of feed is perpendicular to main shaft axis.Cutter 200 is reciprocal in the X direction to process recess battle array line by line
Per a line recess in row 20.For example, cutter 200 is moved back and forth in the X direction, main shaft band
Dynamic cylindrical fixture 100 and metal cylinder turn clockwise, certainly main shaft in other embodiments
Can be with rotate counterclockwise.Corresponding center of circle angular region per a line recess is-θ~+θ, and θ angles are for example
Can be between 5 °~180 °, the θ angles shown in Fig. 2 are about 45 °；In a line is processed last
After individual recess, withdrawing treats that main shaft rotates to-θ Angle Positions, and feed simultaneously processes next line recess,
Until all of recess is machined.
Referring to Fig. 3, Fig. 3 is the microlens array according to an illustrative embodiments of the invention
Structural representation.As previously described, microlens array core rod has one in structure with microlens array
Cause property and complementarity.Below to be said by taking the object that microlens array is final processing as an example shown in Fig. 3
The tool cutting path of a line recess in bright processing microlens array core rod.The Tool in Cutting point exists
Coordinate (the X of plane coordinate system (X, Y, Z)P,Yp,Zp) meet following formula：
In reality processing, the recess array in microlens array core rod is by controlling ultra-precision machine tool
C, X, what Z axis were processed on the face of cylinder, in cylindrical-coordinate system (C', X', Z'), cutter
Cutting point (Cc,Xc,Zc) can be by its plane coordinate system coordinate (XP,Yp,Zp) asked by following coordinate transform
：
Wherein, L is the length of microlens array, and W is the width of microlens array, and p is lenticule
The diameter of each lenticule in array；D is metal cylinder external diameter, and R is Tool in Cutting head radius, and k is
The row sequence number of microlens array, and k=0,1...；N is the order of each lenticule in every row microlens array
Number, n=0,1,2...；The cutter processes every a line recess of the recess array line by line, final to obtain
Recess array.
Microlens array core rod
Microlens array core rod of the present invention, is made up of the above-mentioned microlens array core rod preparation method of the present invention.
Referring to Fig. 4, Fig. 4 is a kind of microlens array core rod according to an illustrative embodiments
Experimental measurements figure.By reality of the microlens array core rod of the present invention on Zygo laser detecting apparatus
Test measurement result.In the diverse location of microlens array core rod, 9 recesses are randomly selected, measured
The face shape error (P-V) and spherical radius (R) of each recess, as shown in table 1, face shape error
Average be 0.150 μm, standard deviation be 0.017 μm；The average of spherical radius is 540.469 μm,
Standard deviation is 8.052 μm.It can be seen that each recess has preferably in the microlens array core rod
Uniformity and quality higher.The microlens array being made up of the microlens array core rod equally has
Preferable uniformity and quality higher.
The recess face shape error (P-V) of table 1 and spherical radius (R)
The preparation method of microlens array
Referring to Fig. 1.The preparation method of microlens array of the present invention, comprises the following steps：
The microlens array being made up of the preparation method of the foregoing microlens array core rod of the present invention is provided first
Core rod.
A mould is provided, the mould includes the top swage 30 and anvil swage 40 of mutual cooperation work, wherein
There is die cavity in anvil swage 40；Microlens array core rod 10 is put into die cavity, in the microlens array
In the case that core rod 10 bends, microlens array core rod 10 is set to be protruded towards the direction of top swage 30, with logical
The pressure for crossing injection flattens lens array core rod 10.Can certainly in advance by microlens array core rod
Placed into die cavity after 10 arrangements are smooth.Die cavity can also be arranged at top swage 30 in other embodiments
It is interior.When microlens array core rod 10 it is off size suitable for example too big when, it is also possible to first by microlens array
Core rod 10 cuts to suitably sized and places into die cavity.
Injection molding：By two pattern matched moulds of the mould, and to moulding mixture is injected into the die cavity, obtain
The microlens array 300.
In the preparation method of microlens array of the present invention, further, the technological parameter of injection molding sets
It is set to：Mold temperature is 105 DEG C, and injection temperature is 229 DEG C, and dwell pressure is 1200MPa, pressurize
Time is 20 seconds, and cool time is 30 seconds.The technological parameter of certain injection molding of the invention is not limited
In above numerical value, it is feasible that following parameter area value is set in other embodiments：Mold temperature
It it is 100~110 DEG C, injection temperature is 225~235 DEG C, and dwell pressure is 1100~1300MPa, during pressurize
Between be 15~25 seconds, cool time be 25~35 seconds.
Microlens array
Microlens array of the present invention, is made up of the above-mentioned method for fabricating microlens array of the present invention.
The above-mentioned microlens array of the present invention has quality and preferable uniformity higher, with traditional glass
The method of glass photoetching is compared, with cost performance higher, can be used for the development of light-field camera, exploitation with
And production.Using microlens array of the invention, easily common slr camera can be repacked into
Light-field camera with optical field imaging function, realizes increasing the depth of field, the function such as " first taking pictures, focus on afterwards ".
Light field application can also be further expanded using microlens array of the present invention in addition, for example by light field into
Rendered as being applied to 3D, the field such as video monitoring, light field are micro-, to realize that optical field imaging is more strengthened
Big function.
Here describe and/or illustrate exemplary embodiment in detail.But embodiments of the invention are not limited to this
In described specific embodiment, conversely, the part and/or step of each embodiment can be with institutes here
Other parts and/or step of description are independent and are used separately.Each part of one embodiment
And/or each step can also be used in combination with other parts and/or step of other embodiments.It is being situated between
Continue described here and/or diagram key element/part/wait when, term " one ", " one ", " being somebody's turn to do ", " institute
State " and " at least one " be used to represent exist one or more elements/part/etc..Term "comprising",
" comprising " and " having " is used to represent the open meaning being included and refers to key element except listing
Also there may be outside/part/wait other key element/part/etc..
Claims (10)
1. a kind of preparation method of microlens array core rod, it is characterised in that comprise the following steps：
One cylindrical fixture is provided, the cylindrical fixture is coaxially installed on the main shaft of a ultra-precision machine tool；
One sheet metal is provided, the sheet metal is removably fitted and is fixed on the external cylindrical surface of the cylindrical fixture
On, a metal cylinder is formed, the center line of the metal cylinder overlaps with the main shaft axis；
Structure based on the microlens array, makes the cutter of the ultra-precision machine tool be processed in the metal tube outer surface
Go out recess array；
The metal cylinder that recess array will be machined with separates the main shaft, forms the microlens array core rod.
2. the preparation method of microlens array core rod as claimed in claim 1, it is characterised in that will
After the metal cylinder separates the cylindrical fixture, also including the metal cylinder is organized into sheet metal the step of.
3. the preparation method of microlens array core rod as claimed in claim 2, it is characterised in that also wrap
Include following steps：The recess array of appropriate area is chosen on sheet metal, the part outside the appropriate area is removed.
4. the preparation method of the microlens array core rod as described in claim 1,2 or 3, it is characterised in that
During recess array is processed, the direction of feed of the cutter is perpendicular to the main shaft axis.
5. the preparation method of microlens array core rod as claimed in claim 4, it is characterised in that plus
During every a line recess of recess array described in work, the Tool in Cutting point coordinates of ultra-precision machine tool is controlled
(Cc, Xc, Zc) meet formula (1)：
Wherein (XP,Yp,Zp) for the cutting point in the coordinate of plane coordinate system (X, Y, Z), meet formula (2)：
Wherein, L is the length of microlens array, and W is the width of microlens array, and p is lenticule
The diameter of each lenticule in array；D is metal cylinder external diameter, and R is tool radius, and k is lenticule battle array
The row sequence number of row, and k=0,1...；N is the serial number of each lenticule in every row microlens array, n
=0,1,2...；The cutter processes every a line recess of the recess array line by line.
6. a kind of microlens array core rod, it is characterised in that as described in claim any one of 1-5
The preparation method of microlens array core rod be made.
7. a kind of preparation method of microlens array, it is characterised in that comprise the following steps：
Offer is made up micro- of the preparation method of the microlens array core rod as described in claim any one of 1-5
Lens array core rod；
A mould is provided, the mould includes two patterns of mutual cooperation work, wherein having mould in a pattern
Groove；The microlens array core rod is put into the die cavity, in the situation of the microlens array core rod curved surface
Under, microlens array core rod is protruded towards another pattern direction；
Injection molding：By two pattern matched moulds of the mould, and to moulding mixture is injected into the die cavity, obtain institute
State microlens array.
8. the preparation method of microlens array as claimed in claim 7, it is characterised in that the injection
The technological parameter of processing is：Mold temperature is 100~110 DEG C, and injection temperature is 225~235 DEG C, pressurize pressure
Power is 1100~1300MPa, and the dwell time is 15~25 seconds, and cool time is 25~35 seconds.
9. the preparation method of microlens array as claimed in claim 8, it is characterised in that the injection
The technological parameter of processing is：Mold temperature is 105 DEG C, and injection temperature is 229 DEG C, and dwell pressure is
1200MPa, the dwell time is 20 seconds, and cool time is 30 seconds.
10. a kind of microlens array, it is characterised in that as micro- as described in claim any one of 7-9
The preparation method of lens array is made.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510902888.2A CN106853546A (en) | 2015-12-09 | 2015-12-09 | Microlens array core rod and preparation method thereof, microlens array and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510902888.2A CN106853546A (en) | 2015-12-09 | 2015-12-09 | Microlens array core rod and preparation method thereof, microlens array and preparation method thereof |
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| CN201510902888.2A Pending CN106853546A (en) | 2015-12-09 | 2015-12-09 | Microlens array core rod and preparation method thereof, microlens array and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110913098A (en) * | 2019-10-28 | 2020-03-24 | 香港理工大学深圳研究院 | High-definition depth information acquisition system, system preparation method and system ranging method |
| CN113070532A (en) * | 2021-04-13 | 2021-07-06 | 广东工业大学 | Ultra-precise cutting method based on surface microstructure design |
| CN113251949A (en) * | 2021-06-18 | 2021-08-13 | 三代光学科技（天津）有限公司 | Method for generating single-point optical measurement path of micro-lens array surface shape |
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| CN113251949B (en) * | 2021-06-18 | 2021-11-30 | 三代光学科技（天津）有限公司 | Method for generating single-point optical measurement path of micro-lens array surface shape |
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