CN105745056B - The manufacturing method and optical element of optical element - Google Patents
The manufacturing method and optical element of optical element Download PDFInfo
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- CN105745056B CN105745056B CN201480062423.4A CN201480062423A CN105745056B CN 105745056 B CN105745056 B CN 105745056B CN 201480062423 A CN201480062423 A CN 201480062423A CN 105745056 B CN105745056 B CN 105745056B
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- energy
- mould
- optical element
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Classifications
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- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/04—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds
- B29C43/06—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds continuously movable in one direction, e.g. mounted on chains, belts
- B29C43/08—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds continuously movable in one direction, e.g. mounted on chains, belts with circular movement, e.g. mounted on rolls, turntables
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- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
- B29C43/361—Moulds for making articles of definite length, i.e. discrete articles with pressing members independently movable of the parts for opening or closing the mould, e.g. movable pistons
- B29C2043/3615—Forming elements, e.g. mandrels or rams or stampers or pistons or plungers or punching devices
- B29C2043/3628—Forming elements, e.g. mandrels or rams or stampers or pistons or plungers or punching devices moving inside a barrel or container like sleeve
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
- B29C2043/3676—Moulds for making articles of definite length, i.e. discrete articles moulds mounted on rotating supporting constuctions
- B29C2043/3678—Moulds for making articles of definite length, i.e. discrete articles moulds mounted on rotating supporting constuctions on cylindrical supports with moulds or mould cavities provided on the periphery
- B29C2043/3681—Moulds for making articles of definite length, i.e. discrete articles moulds mounted on rotating supporting constuctions on cylindrical supports with moulds or mould cavities provided on the periphery opening and closing axially, i.e. parallel to the rotation axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2011/00—Optical elements, e.g. lenses, prisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2011/00—Optical elements, e.g. lenses, prisms
- B29L2011/0016—Lenses
Abstract
The present invention provide consider energy curable resin characteristic while can mass production homogeneous optical element optical element manufacturing method and optical element.The manufacturing method of the optical element has：Energy curable resin is supplied between the 1st mould and the 2nd mould, after the energy for having supplied the 1st amount E1 as energy product component to energy curable resin, supplying the energy of the 2nd amount E2 bigger than the 1st amount E1 makes its solidification, the process that the resin component being had cured in the cured process is taken out, the cured process are at least divided into the 1st curing process of the energy for supplying the 1st amount E1 and supply the 2nd curing process of the energy of the 2nd amount E2.
Description
Technical field
The present invention relates to the manufacturing method of the optical element suitable for mass production optical element and optical elements.
Background technology
The optical element needs generally used in the chip part of medical examination, optical take-up apparatus, photographic device etc.
In high precision, on the other hand, it is desirable that further suppress cost.For such requirement, in recent years, light-cured resin, heat cure
The energy curable resin of property resin etc. attracts attention.Energy curable resin is due to having by energizing with the short time
Cured characteristic is carried out, it is therefore contemplated that being capable of qurer mass production optical element by using it.In patent document 1,
Disclose the technology that optical element is manufactured using light-cured resin.In addition, in patent document 2, about energy curable
The manufacturing method of the optical element of resin, disclose characterized by one side with determine time interval make supporting station rotation, while exist
The defined rotation position of supporting station carries out the manufacturing method of the optical element of multiple molding procedures successively.
In patent document 3, the manufacturing method about energy curable resin, discloses by making light-cured resin cure
Energy initially die down, then become manufacturing method that is strong and making the dimensionally stable in face.
Existing technical literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2011-242478 bulletins
Patent document 2：Japanese Unexamined Patent Publication 2007-147679 bulletins
Patent document 3：Japanese Patent Publication 7-82121 bulletins
Invention content
The subject that the invention solves
But if compared with the thermoplastic resin generally used in optical element in the past, energy curable resin tool
There is the larger such characteristic of shrinkage ratio.Particularly, in the case of uv curing resin, shrinking percentage is up to 3%~
10% or so, solidification is carried out from illuminated surface side, therefore as the inside of cured layer is advanced in the thicker product of wall, production
It is raw to shrink etc., worry cannot accurately transfer mold shape.In addition, even if in the case where ensuring face shaping, in light
Learn element internal residual stresses, deformation, when being equipped on real machine worry due to humidity, temperature change and so that optical characteristics is deteriorated.
In this regard, if reducing the exposure intensity of ultraviolet light etc., the unfavorable situation of contraction etc. can be inhibited to a certain extent, but thus
Increase in the presence of the time needed for solidification, the elongated this problem of molding time.In patent document 3, by making light-cured resin
Cured energy initially dies down, then becomes dimensionally stable that is strong and making face, but it is elongated to fail elimination molding time.
In this regard, according to the technology of patent document 1, light quantity distribution is made from the central part of optical element to peripheral portion decrescence, but
If at concern arbitrary one, still causes the inside of cured layer to be advanced, still remain and easy to produce contraction this problem.Separately
Outside, due to also easy ting produce residual stress, deformation, worry the deterioration of optical characteristics when real machine carries.
The purpose of the present invention is completed in view of above-mentioned project, for provide consider energy curable resin characteristic and can
The manufacturing method and optical element of shortening forming time and the optical element of the optical element of mass production homogeneous.
Means for solving the problems
At least one of in order to achieve the above purpose, reflect the manufacturer of the optical element of an aspect of of the present present invention
Method be energy curable resin is supplied between the 1st mould and the 2nd mould and by the manufacturing method of the optical element of optical element forming,
Have：
The process that above-mentioned 1st mould and above-mentioned 2nd mould are molded；
Make it from energy supply source to the energy curable resin supply energy between above-mentioned 1st mould and above-mentioned 2nd mould
Cured process；
The process that above-mentioned 1st mould and above-mentioned 2nd mould are molded；With
From between above-mentioned 1st mould and above-mentioned 2nd mould by the optical element being molded take out process,
In making its cured process to above-mentioned energy curable resin supply energy, have：Supply conduct will supply
1st process of the energy of the 1st amount E1 of the energy product component that the time is multiplied with supply energy intensity；With after above-mentioned 1st process,
It supplies as the energy product component that service time is multiplied with supply energy intensity, the 2nd amount E2 bigger than above-mentioned 1st amount E1
2nd process of energy is (still, identical as the above-mentioned supply energy intensity of 2nd process in the supply energy intensity of above-mentioned 1st process
In the case of, the above-mentioned 1st amount E1 of above-mentioned 2nd amount E2 ratios per unit time per unit time is big).
The effect of invention
According to the present invention, it is possible to provide consider energy curable resin characteristic and can mass production homogeneous optical element
Optical element manufacturing method and optical element.
Description of the drawings
Fig. 1 is the stereogram for the manufacturing device for indicating the optical element in present embodiment.
Fig. 2 be by the manufacturing device of optical element circumferentially deploying and shown in scheme.
Fig. 3 is the stereogram on the periphery for indicating the lower die MD2 in the 2nd processing unit B.
Fig. 4 is to indicate solidification light integration amount (irradiation time × exposure intensity) that light-cured resin PL is subject to hachure
Coordinate diagram.
Fig. 5 is indicates to make solidification light integration amount that light-cured resin PL is subject to (when irradiation by the irradiation of pulse type
Between × exposure intensity) coordinate diagram.
Fig. 6 is the figure for the variation for indicating lower die MD2.
Specific implementation mode
As " optical element " manufactured in present embodiment, in addition to the chip part of medical examination, the light of camera shooting
It learns other than element, also the mirror of projecting apparatus, illuminating optical element etc..Optical element is not limited to lens, is being, for example,
It can be that flange is one-piece type in the case of lens, can also be flange separation type.Furthermore it is possible to be one with multiple optical axises
Build lens.As lens shape, it is contemplated that various forms, including for example convex lens, concavees lens, thin-walled lens, inclined wall are saturating
Mirror, Fresnel lens, diffraction lens etc..
For the 1st mould and the 2nd mould, not only has the situation of the molding transfer surface of single optical element, can also have
By the transfer surface of multiple optical element formings.It, can shape in order to improve the release property of optical element on the surface of the transfer surface of mould etc.
At the structure of fine bumps etc., the film etc. of water repellency.In addition, if setting makes the location determination that the 1st mould and the 2nd mould align
Portion can then be accurately proceed location determination, therefore preferably.The position determining portions may be disposed at the guarantor for keeping the 1st mould and the 2nd mould
Body is held, may also set up in the 1st mould and the 2nd mould itself.
As " energy curable resin " workable in present embodiment, light-cured resin, Thermocurable can be enumerated
Resin etc..In the case of light-cured resin, the light by supplying provision wavelengths is used as energy, resin solidification, in heat cure
Property resin in the case of, by supply heat be used as energy, resin solidification.
In the case where using light-cured resin as energy curable resin, preferably in the 1st mould and the 2nd mould at least
One is formed by the raw material of translucency.If mould is the raw material of translucency, light can be supplied to photo-curable via mould
Resin, therefore cured efficiency improves.Using light-cured resin, mold materials for example can be used PET (poly- to benzene
Naphthalate) resin, PMMA (polymethyl methacrylate) resin, COC (cyclic olefine copolymer) resin, COP (cyclenes
Hydrocarbon polymer) resin, PC (makrolon) resin, PE (polyethylene) resin, PP (polypropylene) resin, fluororesin etc. thermoplasticity
Light-cured resin or glass of resin or epoxy system resin, acrylic resin, vinyl resin etc. etc..
In the case of using glass as mold materials, drop molded by glass molding or molding can be reheated etc. to manufacture
Mold materials.Mold materials is consolidated, it is preferable to use readily penetrating through the light-cured resin for making to use as the material of optical element
The raw material of the wavelength of change.
In the case where using heat-curing resin as energy curable resin, as energy supply source, electricity can be used
Hot heater, halogen heater etc..In this case, it is desirable to which the 1st mould and the 2nd mould are heat-resist made of metal or glass system.
In turn, the mould of glass system is combined with halogen heater in the case of carrying out use, if in transfer surface (the optical surface transfer of mould
Face) infrared absorbing material is formed a film, then heat release is effectively generated, therefore preferably.
It, can be to arbitrary mould in the case of supplying energy curable resin in the state of having molded the 1st mould and the 2nd mould
Supply, but in the case of use distributor etc., be preferably fed to be located at the mould below gravity direction.It is solid that energy can be made to have supplied
The mould of the property changed resin rotates and so that energy curable resin is unfolded on the transfer surface of mould by centrifugal force.
Alternatively, it is also possible to which for example as injection moulding energy curable resin will be supplied after the 1st mould and the molding of the 2nd mould.
On the other hand, energy can also be supplied to energy curable resin while molding the 1st mould and the 2nd mould.It should
The supply of energy is preferably carried out from both the 1st mould and the 2nd mould.
In order to which the optical element being molded and mould are easy to carry out demoulding, as supplementary structure is demoulded, can be arranged with core,
The structure sold the structure for releasing the optical element being molded, assign ultrasonic activation to mould.For the optics member that will be molded
Part takes out from mould, the various modes that air spider, robot chuck, air can be used to blow off etc..
In molding process, various processes below can be carried out：Process before the molding of pre-treatment before being molded.At
Before type in process, have such as being monitored with camera in mould with the presence or absence of abnormal, send out alarm in the event of an abnormality and
Stop the process of the manufacture of optical element；The process that the mould used in molding is cleaned；Mould is carried out to promote optics member
The process of the processing (silicon coating) of the demoulding of part etc..
In addition, in the process that the optical element that will be molded takes out, following process can be carried out：Carry out rear place after molding
Process after the molding of reason.After shaping in process, can enumerate progress in order to the optical element for making to be molded fully cures and into
The rear solidification of row heating etc., the process etc. of annealing.It should be noted that process can be for the optics that has been taken out from mould after these moldings
Element carries out in other place.
In the case where carrying out continuously shaped along the track being closed using multiple moulds, preferably by the 1st first mould and the 2nd mould
It is moved to configure at equal intervals, with constant speed with subsequent 1st mould and the 2nd mould.It, can be sometimes local but for timing adjustment
Ground changes the interval of intermode.
In turn, so-called " track of closure ", it is not limited to which shape refers to successively towards the processing opposed with multiple processes
Portion, until again towards the 1st mould and the 2nd mould of initial processing unit motion track as closed circuit.But in order to have
There is abnormal mould to exclude, branch can be set in motion track, or in order to which the standby abnormal mould that do not have is inserted into track,
The other circuit combined with the track being closed can be set.
In the present embodiment, " supplying energy to energy curable resin and make its cured process " has the 1st process
With the 2nd process.1st process supplies the 1st amount E1's as by service time and the energy product component that is multiplied of supply energy intensity
Energy.2nd process is supplied as by service time and the energy product component that is multiplied of supply energy intensity than upper after the 1st process
State the energy of the 2nd big amount E2 of the 1st amount E1.Average supply energy intensity per unit time in 1st process is preferably the 2nd work
1/20 or more and 1/2 or less of average supply energy intensity per unit time in sequence.If smaller than 1/20, in the 1st work
Energy intensity is too small in sequence, thus while being not likely to produce contraction on surface, but spends in the hardening time of the 2nd process, the 2nd process
As the bottleneck of circulation time.If bigger than 1/2, there is no the differences of the 1st process and the intensity of the 2nd process, therefore in the 1st work
Energy intensity in sequence is big, easy tos produce contraction.Alternatively, after the 2nd process, can be provided as service time and supply energy
Intensity be multiplied energy product component and supply than the 2nd amount E2 greatly the 3rd amount E3 energy the 3rd process.
It is preferred that the intensity of the energy per unit time supplied during the 1st process from energy supply source be it is certain,
The intensity of the energy per unit time supplied during 2nd process is certain.It can make the solidification of energy curable resin as a result,
Reaction speed is certain.It should be noted that so-called " certain ", be set as the average value comprising the intensity relative to energy be ± 5% with
Interior deviation.
It is preferred that the intensity of the energy per unit time supplied during the 1st process from energy supply source gradually increase,
The energy intensity per unit time supplied during the 2nd process gradually increases.It can make consolidating for energy curable resin as a result,
Change reaction speed to be gradually increasing.
It is preferred that the intensity of the energy per unit time supplied from energy supply source is certain, in the above-mentioned 1st process phase
Between supply energy accumulated time than during above-mentioned 2nd process supply energy accumulated time it is short.As a result, after the 1st process,
As the energy product component that service time is multiplied with supply energy intensity, the energy of the 2nd amount E2 bigger than the 1st amount E1 can be supplied
Amount.
It is following to be directed at embodiment of the present invention while with reference to attached drawing and illustrate.But as described below
In embodiment, preferred various restrictions are technically imparted to implement the present invention, but the range invented does not limit
In the following embodiments and the accompanying drawings and illustrated example.
Fig. 1 is the stereogram for the manufacturing device for indicating the optical element in present embodiment.Fig. 2 is will be shown in Fig. 1
The major part of the manufacturing device of optical element is schemed shown in circumferentially deploying.For manufacturing device, the 1st keeping body will be used as
The 1st disk DC1 and the 2nd disk DC2 as the 2nd keeping body there are coaxially configure with gap.By the 1st disk DC1 and the 2nd
The center of disk DC2 cannot be connect via spline etc. with rotary shaft SFT with the relative rotation, and then via rotary shaft SFT, pass through work
For the actuator AC of fixed driving portion, the 1st disk DC1 and the 2nd disk DC2 are synchronously rotated into driving.
In the 1st disk DC1, multiple (being herein 8) circular open DC1a are formed, it is fixed in circular open DC1a
There is columned upper mold (the 1st mould) MD1.Upper mold MD1 has transfer surface MD1a below.Upper mold MD1 by translucency plastics or
Transparent glass is formed.Here, using the upper mold MD1 manufactured by the injection moulding of the plastics of translucency.
In the 2nd disk DC2, multiple (here, being 8) are formed with becoming configuration identical with circular open DC1a round
Be open DC2a, and in circular open DC2a, columned lower die is movably configured on the axis direction of rotary shaft SFT
(the 2nd mould) MD2.Lower die MD2 has transfer surface MD2a above.Here, used the injection moulding by the plastics of translucency and
The lower die MD2 of manufacture.
It should be noted that upper mold MD1 and lower die MD2 can be formed by the injection moulding of translucent resin, thus, it is possible to
The upper mold MD1 and lower die MD2 of same shape are accurately produced in large quantities.
In addition, particularly, if the raw material of upper mold MD1 and lower die MD2 are glass, excellent in te pins of durability.In addition, passing through
Mould is manufactured with glass, can accurately produce the mould of same shape.In turn, if by glass is needed on metal mold
Upper mold MD1 and lower die MD2 is formed, then is capable of the upper mold MD1 and lower die MD2 of accurately mass production same shape, therefore excellent
Choosing.
The circumferential part covering of 1st disk DC1 and the 2nd disk DC2 is formed into shielding portion SH.Shielding portion SH's
Top surface, along arranged circumferentially multiple (showing 2 in Fig. 2, but practical is 3) light sources of the 1st disk DC1 and the 2nd disk DC2
Energy supply sources of the OPS as the energy curable resin solidification for making the material as optical element, makes light-emitting surface direction
Lower section.It should be noted that light source OPS is preferably provided at the surface of the track at the center of the upper mold MD1 of moving in rotation.
On the other hand, as shown in Figure 2, it is opposed to be configured with multiple (Fig. 2 in the lower section of the 2nd disk DC2 with shielding portion SH
In show 2, but be actually 3) light source OPS.Upper and lower light source OPS is mutually opposed, and the outgoing of No. 1 light source OPS is strong
Degree becomes minimum, and the outgoing intensity of No. 2 light source OPS is small as next, and the outgoing intensity of No. 3 light source OPS becomes most
Greatly.As light source OPS, it is preferably able to the LED of the ultraviolet light of irradiation peak wavelength 365nm.It should be noted that hereinafter, representing " ultraviolet
Line " etc. and use term as " solidification light ".
For light source OPS, preferably by control circuit CONT controls, according to the angle of the 1st disk DC1 and the 2nd disk DC2
Position (position relationship for becoming the upper mold MD1 and lower die MD2 of irradiation object) cures the irradiation time and solidification light of light to adjust
Intensity at least one.But here, it is set as making that the exposure intensity of 3 light source OPS is different from each other, control circuit CONT roots
ON/OFF is only controlled according to the rotation of the 1st disk DC1 and the 2nd disk DC2.
In the lower section of the 2nd disk DC2, fixed configurations have the cricoid lobe plate CP of a pair for constituting mould driving portion.In Fig. 2
Shown such, the cam surface CPa of lobe plate CP is according to circumferential position and with lower curtate CPb, uplink inclined-plane, high portion, lower inclined plane.
Fig. 3 is the stereogram on the periphery for indicating the lower die MD2 in the 2nd processing unit B.Below lower die MD2, it is formed with
The driven member FW (Off ォ ロ ワ FW) of the wheel shape rolled respectively on the cam surface CPa of parallel lobe plate CP and rotatably
Support the supporting part SP of driven member FW.Multiple (1 is only shown in Fig. 3) light source OPS are configured between a pair of cams plate CP.From
The light that light source OPS is projected is incident below between the supporting part SP of the lower die MD2 of translucency, is penetrated from transfer surface MD2a above
Go out.
As illustrated in fig. 2, according to the rotation position of the 1st disk DC1 and the 2nd disk DC2, formed the 1st processing unit A,
2nd processing unit B, the 3rd processing unit C, the 4th processing unit D.In the 1st processing unit A, configured with photo-curable tree can be discharged in right amount
The distributor DSP of fat.In the 2nd processing unit B, it is configured with light source OPS side by side circumferential.In the 4th processing unit D, it is configured with
The cantilevered robot RB that the optical element OE being molded is taken out.
The manufacturing process of action and optical element for the manufacturing device in present embodiment, here, being conceived on one side
A pair of upper mold MD1 and lower die MD2 is illustrated on one side.First, by being actuated to electricity to drive from power supply (not shown)
Device AC, rotary shaft SFT is made to rotate, then the 1st disk DC1 and the 2nd disk DC2 synchronously rotates.Here, in the 1st processing unit A
Leading portion, the driven member FW of lower die MD2 are located at the lower curtate CPb in the cam surface CPa of lobe plate CP, therefore in upper mold MD1 under
The state that mould MD2 is opened, therefore via distributor DSP, light-cured resin PL can be made to drip to the transfer surface of lower die MD2
On MD2a.
Then, by for the upper mold MD1 and lower die MD2 that have supplied light-cured resin PL therebetween, pass through the 1st disk
The synchronous rotary of DC1 and the 2nd disk DC2 and move.Here, the driven member FW of lower die MD2 is in the cam surface CPa of lobe plate CP
Uplink inclined-plane on roll, therefore approached at leisure relative to upper mold MD1, lower die MD2.Lobe plate CP is reached in driven member FW
Cam surface CPa in high portion at the time of, the two is closely sealed and is molded (back segment in the 1st processing unit A).In addition, driven member
FW maintains the molding state of upper mold MD1 and lower die MD2 during rolling high portion.
Then, it for upper mold MD1 and lower die MD2, maintains molding state and passes through the 1st disk DC1 and the 2nd disk DC2
Synchronous rotary and to the 2nd processing unit B movement.In the 2nd processing unit B, in present embodiment, by the 1st process and the 2nd process and
3rd process forms.
Fig. 4 is to indicate solidification light integration amount (irradiation time × exposure intensity) that light-cured resin PL is subject to hachure
Coordinate diagram, horizontal axis are irradiation time (second), and the longitudinal axis is the exposure intensity (mW/cm of per unit area2).It should be noted that light is made to consolidate
The property changed resin PL entirety cures required solidification light integration amount and is set as example with 180 (mW/cm of intensity2) irradiation 25 seconds made of
Cure 4500 (mJ/cm of light integration amount2)。
First, in the 1st process, upper mold MD1 and lower die MD2 pass through the upper and lower light source OPS closest to the 1st processing unit A
Between.At this point, via upper mold MD1 and lower die MD2 with translucency, to light-cured resin PL irradiation solidification light, but at this time
The solidification light integration amount E1 of light-cured resin PL is supplied in certain 18 (mW/cm of intensity2) irradiation in 8 seconds is carried out, therefore
For 144 (mJ/cm2).It is the surface cure of light-cured resin PL in the 1st process as a result,.
Then, in the 2nd process, upper mold MD1 and lower die MD2 pass through No. 2 upper and lower light source OPS from the 1st processing unit A
Between.At this point, via upper mold MD1 and lower die MD2 with translucency, to light-cured resin PL irradiation solidification light, but at this time
The solidification light integration amount E2 of light-cured resin PL is supplied in certain 180 (mW/cm of intensity2) irradiation in 8 seconds is carried out, therefore
For 1440 (mJ/cm2).The position from the surface of light-cured resin PL to the inside in the 2nd process is cured as a result,.
Finally, in the 3rd process, upper mold MD1 and lower die MD2 pass through upper and lower light source farthest the 1st processing unit A of distance
Between OPS.At this point, via upper mold MD1 and lower die MD2 with translucency, to light-cured resin PL irradiation solidification light, but this
When be supplied in the solidification light integration amount E3 of light-cured resin PL in certain 324 (mW/cm of intensity2) under carry out irradiation in 9 seconds,
Therefore it is 2916 (mJ/cm2).It is E1 for light-cured resin PL is from total solidification light integration amount that whole OPS is subject to
+ E2+E3=144+1440+2916=4500 (mJ/cm2), therefore by passing through the 3rd process, photo-curable tree is fully cured
The central part of fat PL.It should be noted that as seen from the figure, the average supply energy intensity per unit time in the 1st process is than the 2nd work
Average supply energy intensity per unit time in sequence is low, the average supply energy intensity per unit time in the 2nd process
It is lower than the average supply energy intensity per unit time in the 3rd process.
According to the present embodiment, at the initial stage (the 1st process) to light-cured resin PL supply solidification light, by that will supply
Solidification light integration amount control small, the curing reaction speed near surface can be made to slow down, it can be ensured that the transfer of optical surface
Precision and ensure the flowing inside its resin.Be because：If given from the initial stage for curing light to light-cured resin PL supplies
Bigger solidification light integration amount is given, then is accelerated from the curing reaction speed on surface, the flowing inside resin is interfered, easy tos produce
The unfavorable situations such as contraction.In addition, by initial stage (the 1st process) consolidating supply to light-cured resin PL supply solidification light
Change light integration amount and control small, slowly carry out the solidification from surface, thus, it is possible to mitigate residual stress inside resin, become
Shape can inhibit to reduce due to environmental change, deterioration and optical property.For such effect, by from the 1st process
So that solidification light integration amount is increased at leisure to the 2nd process, the 3rd process, is more effectively played.In addition, to photo-curable
In the later stage (the 3rd process) of resin PL supply solidification light, due to solidification carry out it is more internal to resin, even if increasing solidification
The influence of light integration amount, contraction, residual stress etc. is also few, and then by improving curing reaction speed, can efficiently reduce system
The intermittent time of product.As the thickness of product, maximum gauge is preferably 300 μm or more and 10mm or less.If it is 300 μ hereinafter,
It is excessively thin and be difficult to be molded, it shrinks itself and is not easy to be formed.On the other hand, blocked up if it is 10mm or more, the solidification of product may become
It obtains not exclusively, solidification excessively spends the time.
In Fig. 1,2, the 2nd processing unit B, upper mold MD1 and lower die MD2 is passed through, have passed through the 1st disk DC1 and the 2nd disk
The synchronous rotary of DC2 is moved to the 3rd processing unit C.Here, for the driven member FW of lower die MD2, due to lobe plate CP's
It is rolled on lower inclined plane in cam surface CPa, therefore detaches, thus molded at leisure relative to upper mold MD1, lower die MD2.
Driven member FW is rolled in lower curtate CPb again after lower inclined plane rolls, therefore relative to upper mold MD1, is maintained
The state that lower die MD2 is opened, therefore in the 4th processing unit D then, by keeping the arm of robot RB flexible, can will turn
The optical element OE that print face MD1a, MD2a have been molded takes out, and is transported to other process.More than, it is conceived to a pair of upper mold MD1
The manufacturing process of the action of manufacturing device and optical element is illustrated with lower die MD2, even if other upper mold MD1
It with lower die MD2, is also staggered periodically and follows same manufacturing process successively, therefore high-precision optics member can be produced in large quantities
Part OE.
According to the present embodiment, will compare in manufacturing process needs the cured process of time to be divided into multiple processes, and
More subsequent process more increases cured energy in each process, therefore can realize elimination and the tree of the bottleneck of manufacturing process
The quality of fat molded product improves, and can produce high-precision resin in large quantities.
According to the present embodiment, it according to the rotation of keeping body DC1, DC2, is respectively provided with along the track (circle) of closure more
The 1st a mould MD1 and the 2nd mould MD2 are moved along the track, therefore can be made as the 1st mould MD1 and the 2nd mould MD2 come to movement
Supply light-cured resin feedway distributor DSP sharings, therefore it is possible to realize save space, reduce equipment at
This.In addition, relative to the 2nd processing unit B, the 1st mould MD1 and the 2nd mould MD2 are moved along the track being closed, therefore can be in movement
The light-cured resin PL that has supplied is from the energy supply source as sharing between the 1st mould MD1 and the 2nd mould MD2 that come
Light source OPS supplies light, therefore manufacturing condition becomes identical, can inhibit manufacture deviation.In turn, relative to the 4th processing unit C, the 1st
Mould MD1 and the 2nd mould MD2 are moved along the track being closed, therefore can make will as the 1st mould MD1 come from movement and the 2nd mould MD2
The robot RB sharings for the device that the optical element manufactured takes out, therefore it is possible to realize save space, reduce equipment cost.
Thereby, it is possible to produce the optical element OE of homogeneous in large quantities with low cost.
According to the present embodiment, in the 1st processing unit A, the 1st mould MD1 and the 2nd mould MD2 can be with along the tracks being closed
Movement and approach at leisure.As a result, by making the 1st mould MD1 and the 2nd mould MD2 approach at leisure, being involved in for bubble can be inhibited
Deng, manufacture high-precision optical element OE.In addition, by being made a relative move along the track in molding, will not interfere follow-up
The 1st mould MD1 and the 2nd mould MD2 movement.
According to the present embodiment, in the 2nd processing unit B, it is provided with the light source OPS as energy supply source.Relative to light
Source OPS is made a relative move by the 1st mould MD1 and the 2nd mould MD2, can equably be supplied energy to the 1st mould MD1 and the 2nd
Light-cured resin between mould MD2.Particularly, it from light source OPS irradiation lights, is easy to be formed according to place
Shadow, therefore so that the 1st mould MD1 and the 2nd mould MD2 is made a relative move preferably with respect to light source OPS carrying out stable manufacture view.
According to the present embodiment, it moving the track that the 1st mould MD1 and the 2nd mould MD2 is closed with edge in the 3rd processing unit C
And it gently detaches.By making the 1st mould MD1 gently be detached with the 2nd mould MD2, even if for example in the optical element OE shapes of manufacture
In the case of at fine diffraction structure etc., diffraction structure will not be damaged, die sinking is possibly realized.In addition, by molding
When the 1st mould MD1 and the 2nd mould MD2 moved along track, the movement of subsequent 1st mould MD1 and the 2nd mould MD2 will not be interfered.
According to the present embodiment, have as so that the 2nd mould MD2 response is entered the 1st processing unit A and relative to the 1st mould MD1
It is close to, in addition response enters the 3rd processing unit C and makes relative to the 1st mould MD1 its mould driving portion detached, cricoid
Lobe plate CP；With driven member FW.Thereby, it is possible to be controlled the approaching of the 1st mould MD1 and the 2nd mould MD2 with best timing, detached.
As modified embodiment of the present embodiment, can as being used in Fig. 4 shown in dotted line, the in the 2nd processing unit B the 1st
Process, the 2nd process, the 3rd in-process, make the exposure intensity of solidification light gradually increase.Thereby, it is possible to make light-cured resin PL's
Curing reaction speed is gradually increasing.It should be noted that total solidification light integration amount is preferably identical as above-mentioned embodiment.Even if
In this case, average supply energy intensity per unit time in the 1st process is than being averaged per unit time in the 2nd process
It is low to supply energy intensity, average supply energy intensity per unit time in the 2nd process than in the 3rd process per unit time
Average supply energy intensity it is low.
In turn, can as shown in figure 5 as other variation, the 1st process in the 2nd processing unit B, the 2nd
Process, the 3rd in-process carry out the irradiation of solidification light with the pulse type indicated with hachure.Here, for example by 3 light source OPS's
Exposure intensity is fixed as 500 (mW/cm2), setting will can respectively cover and the shutter that independently drive etc., in upper mold
MD1 and lower die MD2 only makes shutter open 0.2 second when coming defined position, thus, it is possible to the photograph of solidification light is carried out with pulse type
It penetrates.It should be noted that also energy intensity can be changed in each pulse irradiation.
In the example of fig. 5,1 irradiation has been carried out in the 1st process, and 2 photographs have intermittently been carried out in the 2nd process
It penetrates, 5 irradiations has continuously been carried out in the 3rd process.It should be noted that the average supply energy per unit time in the 1st process
Measure that intensity is lower than the average supply energy intensity per unit time in the 2nd process, being averaged per unit time in the 2nd process
It is lower than the average supply energy intensity per unit time in the 3rd process to supply energy intensity.In addition, solidification light integration amount is preferred
It is identical as above-mentioned embodiment.
Fig. 6 is the sectional view for indicating the variation to the 2nd processing unit B lower die MD2 moved.In this example, by translucency
Raw material made of lower die MD2 be internally provided with speculum MR.It is adjacent in the side with lower die MD2 in the 2nd processing unit B
It connects and have light source OPS with the anti-opposed positions Mirror MR of penetrating with curing light fixed configurations can be irradiated to side.Structure other than this
At identical as above-mentioned embodiment.
When molding, by the rotation of the 2nd disk DC2, lower die MD2 is then projected from light source OPS to the 2nd processing unit B movements
Solidification light is incident on speculum MR via the side of lower die MD2, and then is reflected and transfer surface MD2a upward.By
This, can make the light-cured resin solidification for being supplied to transfer surface MD2a.According to this example, due to not below lower die MD2
Incidence solidification light, therefore supporting part SP can be arranged below lower die MD2 central.
Industrial availability
The present invention is not limited to the embodiment described in this specification, as described in this specification embodiment,
Technological thought, for including other embodiment variations known to those skilled in the art.
The explanation of symbol
The 1st processing units of A
The 2nd processing units of B
The 3rd processing units of C
The 4th processing units of D
AC actuators
CP lobe plates
CPa cam surfaces
CPb lower curtates
CR delivery sections
The 1st disks of DC1
DC1a circular opens
The 2nd disks of DC2
DC2a circular opens
SP supporting parts
DSP distributors
FW driven members
MD1 upper molds
MD1a transfer surfaces
MD1b planar portions
The MD1c conical surfaces
MD1d cylindrical shape inner faces
MD2 lower dies
MD2a transfer surfaces
MD2b planar portions
The MD2c conical surfaces
The cylindric outsides MD2d
OE optical elements
OPS light sources
PL light-cured resins
RB robots
SFT rotary shafts
SH shielding portions
Claims (10)
1. a kind of manufacturing method of optical element, which is characterized in that have：
The process that energy curable resin is supplied between the 1st mould and the 2nd mould；
The energy curable resin has been supplied as the energy product component that service time is multiplied with supply energy intensity
After the energy of 1st amount E1, after the 1st energy supply, supply as the energy that service time is multiplied with supply energy intensity
The cured process of energy that measure integration amount, the 2nd amount E2 bigger than the 1st amount E1；With
The process that the resin component being had cured in the cured process is taken out,
1st mould and the 2nd mould are arranged in a manner of mobile on the track in closure respectively, on one side by the 1st mould
The cured process is carried out on one side with the 2nd mould movement, and the cured process is at least divided into supply the 1st amount E1
Energy the 1st curing process and supply the 2nd amount E2 energy the 2nd curing process,
The relative distance in the energy supply source and the energy curable resin of energy is just supplied to the energy curable resin
For, during 1 curing process in be certain, and during 2 curing process in be certain.
2. the manufacturing method of optical element according to claim 1, which is characterized in that the energy supply source is described
The 1st energy supply source of energy is supplied to the energy curable resin and cure the described 2nd in during 1st curing process
The 2nd energy supply source of energy is supplied in during process to the energy curable resin.
3. the manufacturing method of optical element according to claim 2, which is characterized in that the 1st energy supply source and institute
The configuration of the 2nd energy supply source is stated in identical component.
4. the manufacturing method of optical element according to claim 1, which is characterized in that the 1st amount E1 is the 2nd amount
1/20 or more and 1/2 or less of E2.
5. the manufacturing method of optical element according to claim 1 or 2, which is characterized in that existed by the energy supply source
The intensity of the energy per unit time supplied during 1st process is certain, is supplied during the 2nd process
The intensity of energy per unit time is certain.
6. the manufacturing method of optical element according to claim 1 or 2, which is characterized in that existed by the energy supply source
The intensity of the energy per unit time supplied during 1st process gradually increases, and is supplied during the 2nd process
Energy intensity per unit time gradually increase.
7. the manufacturing method of optical element according to claim 1 or 2, which is characterized in that supplied by the energy supply source
The intensity for the energy per unit time given is certain, and the accumulated time ratio of energy is supplied during the 1st process described
The accumulated time that energy is supplied during 2nd process is short.
8. the manufacturing method of optical element according to claim 1 or 2, which is characterized in that the 1st mould and the described 2nd
Mould respectively along the track being closed be respectively set multiple, first the 1st moulds and the 2nd mould in it have passed through the process certain
After one process, subsequent 1st mould and the 2nd mould some process described in,
Along the track of the closure, thus the 1st mould and the 2nd mould supply energy close to the energy supply source.
9. the manufacturing method of optical element according to claim 1 or 2, which is characterized in that energy curable resin is light
Curable resin, the 1st mould and the 2nd mould relative to make the cured light of light-cured resin have translucency.
10. the manufacturing method of optical element according to claim 1 or 2, which is characterized in that with regard to the energy supply source
Speech, at least the one of the service time of energy and the intensity of energy is adjusted according to the position relationship of the 1st mould and the 2nd mould
Person.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013235735 | 2013-11-14 | ||
| JP2013-235735 | 2013-11-14 | ||
| PCT/JP2014/080054 WO2015072508A1 (en) | 2013-11-14 | 2014-11-13 | Method for producing optical element, and optical element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105745056A CN105745056A (en) | 2016-07-06 |
| CN105745056B true CN105745056B (en) | 2018-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480062423.4A Expired - Fee Related CN105745056B (en) | 2013-11-14 | 2014-11-13 | The manufacturing method and optical element of optical element |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6380913B2 (en) |
| CN (1) | CN105745056B (en) |
| WO (1) | WO2015072508A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1108999A (en) * | 1993-07-19 | 1995-09-27 | 希巴-盖吉股份公司 | A process and device for the manufacture of mouldings and mouldings manufactured in accordance with that process |
| US6439870B1 (en) * | 2000-05-26 | 2002-08-27 | Johnson & Johnson Vision Care, Inc. | Apparatus for automated ophthalmic lens fabrication |
| CN1852801A (en) * | 2003-09-18 | 2006-10-25 | 精工爱普生株式会社 | Device for manufacturing plastic lens |
| JP2011148264A (en) * | 2010-01-25 | 2011-08-04 | Nissha Printing Co Ltd | Method for manufacturing resin molded article |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0531736A (en) * | 1991-08-02 | 1993-02-09 | Canon Inc | Apparatus for molding optical element |
| JPH05220763A (en) * | 1992-02-14 | 1993-08-31 | Olympus Optical Co Ltd | Method for molding composite optical element |
| JP3713945B2 (en) * | 1998-03-16 | 2005-11-09 | セイコーエプソン株式会社 | Contact lens manufacturing method and manufacturing apparatus |
| JP2005305691A (en) * | 2004-04-19 | 2005-11-04 | Olympus Corp | Optical element manufacturing method |
| JP2006110920A (en) * | 2004-10-18 | 2006-04-27 | Institute Of Physical & Chemical Research | Micro forming and processing apparatus and method |
| US20060192306A1 (en) * | 2005-02-25 | 2006-08-31 | The Microoptical Corporation | Manufacturing methods for embedded optical system |
| JP5525860B2 (en) * | 2010-02-26 | 2014-06-18 | 東芝機械株式会社 | Lens manufacturing method |
-
2014
- 2014-11-13 JP JP2015547783A patent/JP6380913B2/en active Active
- 2014-11-13 CN CN201480062423.4A patent/CN105745056B/en not_active Expired - Fee Related
- 2014-11-13 WO PCT/JP2014/080054 patent/WO2015072508A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1108999A (en) * | 1993-07-19 | 1995-09-27 | 希巴-盖吉股份公司 | A process and device for the manufacture of mouldings and mouldings manufactured in accordance with that process |
| US6439870B1 (en) * | 2000-05-26 | 2002-08-27 | Johnson & Johnson Vision Care, Inc. | Apparatus for automated ophthalmic lens fabrication |
| CN1852801A (en) * | 2003-09-18 | 2006-10-25 | 精工爱普生株式会社 | Device for manufacturing plastic lens |
| JP2011148264A (en) * | 2010-01-25 | 2011-08-04 | Nissha Printing Co Ltd | Method for manufacturing resin molded article |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2015072508A1 (en) | 2017-03-16 |
| WO2015072508A1 (en) | 2015-05-21 |
| JP6380913B2 (en) | 2018-08-29 |
| CN105745056A (en) | 2016-07-06 |
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