CN106256794A - Glass material for press molding and its manufacture method and the manufacture method of optical element - Google Patents
Glass material for press molding and its manufacture method and the manufacture method of optical element Download PDFInfo
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- CN106256794A CN106256794A CN201610411132.2A CN201610411132A CN106256794A CN 106256794 A CN106256794 A CN 106256794A CN 201610411132 A CN201610411132 A CN 201610411132A CN 106256794 A CN106256794 A CN 106256794A
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- Prior art keywords
- press molding
- glass material
- surface roughness
- face
- glass
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- 239000011521 glass Substances 0.000 title claims abstract description 154
- 239000000463 material Substances 0.000 title claims abstract description 131
- 238000000465 moulding Methods 0.000 title claims abstract description 90
- 238000000034 method Methods 0.000 title claims abstract description 46
- 230000003287 optical effect Effects 0.000 title claims abstract description 43
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 32
- 230000003746 surface roughness Effects 0.000 claims abstract description 101
- 239000012778 molding material Substances 0.000 claims description 37
- 238000000227 grinding Methods 0.000 claims description 19
- 238000003801 milling Methods 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 239000004327 boric acid Substances 0.000 description 7
- -1 Boric acid lanthanide Chemical class 0.000 description 6
- 229910052747 lanthanoid Inorganic materials 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 230000001154 acute effect Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 229910019142 PO4 Inorganic materials 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 3
- 101150083238 bsc7 gene Proteins 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000005482 strain hardening Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 239000006061 abrasive grain Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- TZIBOXWEBBRIBM-UHFFFAOYSA-N cerium(3+) oxygen(2-) titanium(4+) Chemical compound [O--].[O--].[Ti+4].[Ce+3] TZIBOXWEBBRIBM-UHFFFAOYSA-N 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 239000005365 phosphate glass Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/06—Construction of plunger or mould
- C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
- C03B11/084—Construction of plunger or mould for making solid articles, e.g. lenses material composition or material properties of press dies therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/06—Construction of plunger or mould
- C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C4/00—Compositions for glass with special properties
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
- G02B3/0012—Arrays characterised by the manufacturing method
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2215/00—Press-moulding glass
- C03B2215/40—Product characteristics
- C03B2215/46—Lenses, e.g. bi-convex
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
Abstract
The present invention provides glass material for press molding, the manufacture method of glass material for press molding and the manufacture method of optical element, it can obtain desired optical property in the case of the form accuracy not damaging the compressing optical element obtained, and can provide with low cost.According to the present invention, glass material for press molding (10) is provided, this glass material for press molding (10) possesses at least one convex surface (10a) that surface roughness Ra is the 1st surface roughness Ra 1 and the surrounding being configured at convex surface and side end face (11) that surface roughness Ra is the 2nd surface roughness Ra 2,2nd surface roughness Ra 2 is less than 0.10 μm, and the 2nd surface roughness Ra 2 is more than the 1st surface roughness Ra 1.
Description
Technical field
The present invention relates to the manufacture method of glass material for press molding and glass material for press molding, particularly to
There is the glass material for press molding of at least one convex surface, the manufacture method of glass material for press molding and optical element
Manufacture method.
Background technology
As one of the method for optical element (glass lens) with at least one convex surface of manufacture, there is following molding side
Method: utilize mould that the glass material for press molding with at least one convex surface is suppressed.
The side end face of the glass material for press molding formed via cold working such as centering operations typically has frosted shape
Asperities, this asperities possesses the concavo-convex of acute angle.Therefore, in above-mentioned forming method, the concavo-convex leading section of acute angle is sometimes
From the side end face of glass material for press molding, the form with molecule departs from, and falls on mould.It addition, can produce down
State problem: this molecule can enter between glass material for press molding and mould in compressing, in compacting
The surface of the optical element (glass lens) that molding obtains produces the bad part of point-like.
In order to tackle this problem, it is proposed that following processing scheme: before compressing, to compressing gob
The side end face of material carries out heating thus will have the concavo-convex melt surface of acute angle, thus makes the concavo-convex obtuse angle, leading section of acute angle
Change, prevent molecule from departing from (patent documentation 1) from side end face.
Prior art literature
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2011-16675 publication
Summary of the invention
The problem that invention is to be solved
But, even if for the situation having carried out the process described in patent documentation 1, at the side of glass material for press molding
Face still can remain concaveconvex shape.
On the other hand, when compressing, when making glass material for press molding deform by mould, it is adjacent to convex
The side end face in face is involved in the forming surface side of mould and is pressed, and (glass is saturating to constitute the compressing optical element obtained
Mirror) edge part.
For the side end face forming surface that molding obtains by compacting remaining concaveconvex shape, it has shape not
Good, therefore produce the problem that cannot obtain desired optical property.Thus, it has to this part with shape defect is given up
Abandon, cause that glass blank wastes add, i.e. cost increases.
The present invention completes in view of this problem, and it can be in the shape not damaging the compressing optical element obtained
Obtain desired optical property in the case of shape precision, provide glass material for press molding, compressing use with low cost
The manufacture method of glass blank and the manufacture method of optical element.
Means for solving the above
The present invention relates to a kind of glass material for press molding, it possesses:
Surface roughness Ra is at least one convex surface of the 1st surface roughness Ra 1；With
It is configured at the surrounding of described convex surface and side end face that surface roughness Ra is the 2nd surface roughness Ra 2,
2nd surface roughness Ra 2 is less than 0.10 μm, and the 2nd surface roughness Ra 2 is more than the 1st surface roughness Ra 1.
The invention still further relates to the manufacture method of a kind of glass material for press molding, it possesses following operation:
Preparatory process, is used for preparing glass material for press molding material, and this glass material for press molding material has
At least one convex surface and be configured at the surrounding of convex surface and the surface roughness Ra side more than the 1st surface roughness Ra 1 of convex surface
Face；With
Grinding step, for being ground side end face, thus obtains surface roughness Ra less than 0.10 μm and more than convex
The surface roughness Ra of described 1st surface roughness Ra 1 in face.
Glass material for press molding according to the present invention and the manufacture method of glass material for press molding, at side
In the case of 2nd surface roughness Ra 2 in face is more than the 1st surface roughness Ra 1 of at least one convex surface, the 2nd surface roughness
Ra2 is less than 0.10 μm.Therefore, even if the side end face being adjacent to convex surface is involved in the forming surface side of mould and is pressed, it is possible to
To obtain the optical element with good optical property in the case of not damaging form accuracy.
Invention effect
According to the present invention of this composition, can be in the feelings of the form accuracy not damaging the compressing optical element obtained
Desired optical property is obtained, it is possible to provide glass material for press molding, compressing gob with low cost under condition
The manufacture method of material and the manufacture method of optical element.
Accompanying drawing explanation
Fig. 1 is the schematic side elevational view of glass material for press molding.
Fig. 2 is the sectional view through centering processing and the glass material for press molding material with frosted shape side end face.
Fig. 3 is the milling time representing the side end face for glass material for press molding material and surface roughness Ra 2
The chart of the relation of (the 2nd surface roughness).
Fig. 4 is to represent that one side is that tabular surface and possessing is configured between convex surface and tabular surface around for convex surface, another side
The sectional view of glass material for press molding of side end face.
Fig. 5 is to represent that one side is concave surface and the side possessing the surrounding being configured between convex surface and concave surface for convex surface, another side
The sectional view of the glass material for press molding of end face.
Fig. 6 is the schematic side elevational view of an example of the grinding step that glass material for press molding material is described.
Detailed description of the invention
Hereinafter, referring to the drawings while to the glass material for press molding of the present invention, glass material for press molding
Manufacture method and the embodiment of manufacture method of optical element be described in detail.
In this specification, " glass material for press molding " is mainly used for the glass blank of compression molding, refers to cold pre-
Profiled member.Cold preformed member refers to the preformed member (preform) formed via cold working such as centering processing.It addition, " compacting
Molding glass blank material " for forming the cold preformation of the last stage of " glass material for press molding " in this specification
Type part, particularly relates to process through centering and have the cold preformed member of frosted shape side end face.In addition, for " being pressed into
Type glass blank material " for, its side end face is more smooth than frosted shape, but makes as problem pressurize really from the present invention
From the viewpoint of the form accuracy of the optical element after type, also include being unsuitable for compressing cold preformed member.
" side end face " of glass material for press molding or glass material for press molding material refers not only to compressing
With glass blank or the outer peripheral face of glass material for press molding material, in the case of being provided with chamfered section, also include this chamfering
Portion.
" surface roughness Ra " refers to arithmetic average roughness based on calendar year 2001 JIS standard B601.Surface roughness Ra
Mensuration can utilize method based on JIS standard, use known determinator to be measured.
(glass material for press molding)
Fig. 1 is the schematic side elevational view of the glass material for press molding 10 of present embodiment.Compressing gob
Material 10 possesses at least one convex surface 10a that surface roughness Ra is the 1st surface roughness Ra 1 and is configured at around convex surface 10a
And the side end face 11 that surface roughness Ra is the 2nd surface roughness Ra 2, the 2nd surface roughness Ra 2 is less than 0.10 μm, and, the
2 surface roughness Ra 2 are more than the 1st surface roughness Ra 1.
It addition, the side end face 11 of glass material for press molding 10 is continuously provided laterally from the outward flange of convex surface 10a.
Convex surface 10a can be spherical shape.For the shape of glass material for press molding 10, as example, for falcate concavity.
Further, as it is shown in figure 1, glass material for press molding 10 is also equipped with link surface 40, this link surface 40 is configured at
The face contrary with convex surface 10a is also linked to side end face 11, can make the surface roughness Ra (hereinafter referred to as " table of link surface 40
Surface roughness Ra3 ") less than 0.10 μm.It should be noted that in FIG, link surface 40 is flat shape.
It should be noted that as it has been described above, side end face 11 include glass material for press molding 10 outer peripheral face 11a and
Chamfered section 11b.
Glass material for press molding 10 used in present embodiment is for example, with boric acid and rare earth oxide
Boric acid lanthanide glass for main component.It should be noted that the material of the glass material for press molding of the present invention does not limit
In boric acid lanthanide glass, such as, can be the phosphate glass with phosphate as main component, with silicon dioxide as main component
Silica-based glass.
From the viewpoint of the attrition process of side end face, for the glass material for press molding 10 of present embodiment
For physical property, wear intensity (F is preferably usedA) be less than 400 material.Wear intensity (the F of glass material for press molding 10A) more
It is preferably less than 200, more preferably less than 100.
Equally, from the viewpoint of the attrition process of side end face, the glass material for press molding 10 of present embodiment
Knoop hardness be preferably more than 400MPa.The Knoop hardness of glass material for press molding 10 more preferably 500MPa with
Upper, more preferably more than 600MPa.
It should be noted that wear intensity (FA) and Knoop hardness obtained by below step.
Wear intensity (FA) calculate as follows: it is 9cm by mensuration area2Test portion be maintained at away from horizontal rotation per minute 60 times
The constant position of cast iron plane vessel center 80mm, every 5 minutes fixed supplies are at the alumina abrasive grain 10g of mean diameter 20 μm
In with the addition of the polishing fluid of 20ml water, apply the load of 9.807N, be polished.It addition, weigh the test portion quality before and after grinding,
Obtaining abrasion quality m, the Standard testing agent (BSC7) for being formulated by Japanese Optical nitre industry carries out same mensuration and obtains
To abrasion quality m0, by above-mentioned abrasion quality m and abrasion quality m0Substitute into following formula, calculate wear intensity (FA)。
FA={ (m/d)/(m0/d0)}×100
Herein, d is the proportion of test portion, d0Proportion for Standard testing agent (BSC7).
Knoop hardness is obtained as follows: the glass surface after plane lapping, depresses relative rib angle with the load of 0.9807N and is
172 ° 30 ' and 130 °, cross section be the diamond rectangular pyramid pressure head of rhombus, above-mentioned pressure carries out 15 seconds, thus forms indenture,
Cornerwise length on the long limit of the permanent indenture produced is measured, obtains Knoop hardness by following formula.
Hk=1.451 (F/l2)
Herein, F be load (N), l be cornerwise length (mm) on the long limit of indenture.
Then, about the surface roughness Ra 2 of side end face 11 and the table of convex surface 10a of glass material for press molding 10
Surface roughness Ra1 and the relation of the form accuracy of the compressing optical element obtained, be described in detail.Herein, it is pressed into
The adjustment of the surface roughness Ra 2 of the side end face 11 of type glass blank material 10 ', i.e. planarization are to be added by known grinding
Work is carried out.
Fig. 2 is through centering processing and to have a convex surface 10a ' and be configured at the frosted shape side of surrounding of convex surface 10a '
The sectional view of the glass material for press molding material 10 ' of end face 11 '.Shape for glass material for press molding material 10 '
For shape, as example, for the falcate concavity as Fig. 1.It should be noted that be formed in one end of side end face 11 '
Chamfered section 11b.It should be noted that in Fig. 1 and Fig. 2, the surface roughness Ra 1 of convex surface 10a with 10a ' is identical.
It addition, as in figure 2 it is shown, glass material for press molding material 10 ' has further at the opposite face of convex surface 10a '
The standby link surface 40 ' being linked to side end face 11 '.It should be noted that in fig. 2, link surface 40 ' is flat shape.
Fig. 3 is milling time and the table of the side end face 11 ' representing the glass material for press molding material 10 ' for Fig. 2
The chart of the relation of surface roughness Ra2 (the 2nd surface roughness).Milling time is 0～300s.During it should be noted that grind
Between 0 Ra2 mean the surface roughness of frosted shape side end face after centering processing.Benchmark when surface roughness Ra measures is long
Degree l is 0.85mm.Glass material for press molding material 10 ' employs boric acid lanthanide glass.It should be noted that rough surface
The mensuration of degree Ra employs the Form Talysurf (type name: Laser 635) that Taylor Hobson society manufactures.
As it is shown on figure 3, about the surface roughness Ra 2 of side end face, in the case of milling time is below 120s, relatively
Demonstrate reduce tendency slowly in adding of milling time, if milling time is more than 120s, drastically decline.It addition, at 140s
In the case of above, less than 0.10 μm.Corresponding, if milling time is more than 120s, for more than 140s, then it is visually observed
Side end face is changed to glassy surface from cloudy surface.
Table 1 represents relative to each milling time, side end face surface roughness Ra 2 and to compressing gob
The index of the form accuracy of the optical element that material material 10 ' is pressed and obtains." the shape essence of optical element of table 1
Degree " in, zero represents the feelings that ensure that in optical property the situation of sufficient form accuracy, × expression create shape defect
Condition.Although it addition, be not recorded in table 1, but the surface roughness Ra 1 of the convex surface 10a of glass material for press molding 10 is
0.0025μm。
[table 1]
From Fig. 3 and Biao 1, from the viewpoint of the form accuracy guaranteeing optical element, it is preferred that compressing use
The surface roughness Ra 2 of the side end face 11 of glass blank 10 is less than 0.10 μm, and, surface roughness Ra 2 is more than rough surface
Degree Ra1.From the viewpoint of the form accuracy of the optical element after raising is compressing further, the upper limit of Ra2 is more preferably
Corresponding to 200s～300s milling time, less than the surface roughness of 0.020 μm.
Further, use as shown in Figure 2, possess and be configured at the face contrary with convex surface 10a ' and be linked to side end face 11 '
Link surface 40 ' glass material for press molding material 10 ' in the case of, preferably make the surface roughness Ra 3 of link surface 40 '
Less than 0.10 μm.Its reason is, uses the situation of the glass material for press molding material 10 ' possessing this link surface 40 '
Under, when compressing, in addition to side end face 11 ', link surface 40 ' is the most also involved in the forming surface side of mould and is pressed
System, constitutes the edge part of the compressing optical element obtained.
The surface of surface roughness Ra 2 with the link surface 40 ' being linked to side end face 11 ' by making side end face 11 ' respectively
Roughness Ra 3 is below 0.10 μm, it is possible to further help in the raising of the surface accuracy of optical element.It addition, from further
From the viewpoint of improving the form accuracy of optical element, surface roughness Ra 3 more preferably less than 0.020 μm.Surface roughness Ra 3
Lower limit be not particularly limited, can be such as 0 or for the surface roughness Ra 1 of convex surface 10a '.It should be noted that such as Fig. 2
Shown in, link surface 40 ' is flat shape.
It should be noted that the glass material for press molding material 10 ' of present embodiment employs boric acid lanthanide glass,
But in phosphate-based glass, silica-based glass etc., surface roughness Ra 2, surface roughness Ra 1 and compressing after
The relation of the form accuracy of optical element is also shown for the result as the situation using boric acid lanthanide glass.
Further, in the present embodiment, employ the concave glass material for press molding of falcate, but in one side and
The glass material for press molding that this two sides of another side is the shape of convex surface or one side is shape etc. that convex surface another side is plane
In, surface roughness Ra 2, surface roughness Ra 1 and compressing after the relation of form accuracy of optical element show with
The result that the concave glass material for press molding of falcate is same.
Fig. 4 is to represent that one side is tabular surface 20b for convex surface 20a, another side and possesses and be configured at convex surface 20a and tabular surface
The sectional view of the glass material for press molding 20 of the side end face 21 of the surrounding between 20b.The problem of the present invention, the most compressing
There is the tendency depending on (Δ h1/D1) in the degree of the deterioration of the form accuracy of the optical element obtained, (Δ h1/D1) is compacting
Molding by glass blank 20, convex surface from central shaft O direction summit distance, delta h to outer circumference end relative to convex surface
The ratio of the diameter D1 of 20a.
That is, to this Δ h1/D1 with compressing after the relation of form accuracy of optical element investigate, result can
Knowing, the problem of the present invention is easier to, in the case of Δ h1/D1 is more than 0.15, manifesting.The present invention is more suitable for convex surface 20a
The situation that Δ h1/D1 is more than 0.15.The upper limit of Δ h1/D1 is not particularly limited, such as, can be 0.40.
Fig. 5 be represent one side be concave surface 30b for convex surface 30a, another side and possess be configured at convex surface 30a and concave surface 30b it
Between the sectional view of glass material for press molding 30 of side end face 31 of surrounding.Use as shown in Figure 5, one side have convex
In the case of face and another side have glass material for press molding with concave surfaces, the problem of the present invention has inclining of manifesting further
To.
In the case of the glass material for press molding 30 of shape as shown in Figure 5, by this compressing gob
Material is configured in the concavity forming surface of lower mold, makes upper mold decline and pressurize glass material for press molding, if it is desired to make
Glass material for press molding is corresponding to the forming surface of the convex of upper mold, then the middle body of the forming surface of convex takes the lead in and suppresses
Molding glass blank contacts.Its reason is, if persistent pressure in this condition, then by the top from the forming surface of convex
Putting on the pressure of glass material for press molding, the neighboring of glass material for press molding bends upward, with periphery
Part between portion and central part is compared, and the forming surface that the peripheral part of glass material for press molding takes the lead in convex contacts.
That is, make the summit of convex surface 30a in central shaft O direction from glass material for press molding 20 to outer circumference end
The ratio (Δ h2/D2) of the distance, delta h2 diameter D2 relative to convex surface 30a and the radius of curvature R 1 of convex surface are relative to the song of concave surface
The ratio (R1/R2) of rate radius R2 systematically changes, and is adjusted the form accuracy of the optical element after compressing, result
Understand, the problem of the present invention Δ h2/D2 be more than 0.15 and R1/R2 be more than 1/4 and less than 2 time manifesting further.
In the present invention, for as shown in Figure 5, one side has convex surface 30a and another side has the compressing of concave surface 30b
For glass blank 30, the situation that ratio is more than 0.15 and the R1/R2 that are further adapted to Δ h2/D1 are more than 1/4 and 2
Following situation.The upper limit of Δ h2/D2 is not particularly limited, such as, can be 0.40.
(manufacture method of glass material for press molding and the manufacture method of optical element)
Then, about the manufacture method of the glass material for press molding 10 of present embodiment, Fig. 6 is used to illustrate.
Fig. 6 is the schematic side elevational view of an example of the grinding step that glass material for press molding 10 is described.
The manufacture method of present embodiment possesses following operation:
Preparatory process, wherein, prepares glass material for press molding material 10 ', this glass material for press molding material
10 ' have at least one convex surface 10a ' and are configured at surrounding and the 1st table of surface roughness Ra ratio convex surface 10a ' of convex surface 10a '
The side end face 11 ' that surface roughness Ra1 is big；With
Grinding step, wherein, is ground side end face 11 ', thus obtains surface roughness Ra less than 0.10 μm and big
The 2nd surface roughness Ra 2 in the 1st surface roughness Ra 1 of convex surface 10a '.
In the manufacture method of the glass material for press molding 10 of present embodiment, first prepare compacting as shown in Figure 2
Molding glass blank material 10 ', this glass material for press molding material 10 ' has at least one convex surface 10a ' and configuration
Surrounding and the surface roughness Ra side end face 11 ' (preparatory process) more than convex surface 10a ' in this convex surface.It should be noted that should
Glass material for press molding material 10 ' is the cold preformed member manufactured by known manufacture method.
Then, being ground, the surface roughness Ra making the side end face 11 ' of glass material for press molding material 10 ' is
Less than 0.10 μm and the 2nd surface roughness Ra 2 (grinding step) of the 1st surface roughness Ra 1 more than convex surface 10a '.
As shown in Figure 6, convex surface 10a ' the side part of glass material for press molding material 10 ' is fixed on and can rotate
Glass material for press molding material is fixing with fixture 14.Then, make to be installed on the grinding pad 12 of the fixing fixture 16 of pad
Under the state of the side end face 11 ' being contacted with glass material for press molding material 10 ', make glass material for press molding material solid
Surely rotate with fixture 14, make side end face 11 ' and grinding pad 12 relative movement of glass material for press molding material 10 ', right
Side end face 11 ' is ground until surface roughness is less than 0.10 μm and the table of the surface roughness Ra 1 more than convex surface 10a '
Surface roughness Ra, thus obtain the glass material for press molding 10 of present embodiment.It should be noted that chamfered section 11b '
Grinding can be by making the face being installed on the grinding pad 10d of the fixing fixture 16 of pad according to the chamfer angle with chamfered section 10c
Corresponding mode contacts thus similarly carries out.Grinding about link surface 40 ', it is also possible to utilize same method to carry out.
The side end face 11 ' of glass material for press molding material 10 ' is ground, until surface roughness Ra 2 is for being less than
0.10 μm not and more than convex surface 10a ' surface roughness Ra 1 surface roughness Ra 2 till.
From the viewpoint of the form accuracy of the optical element after raising is compressing further, surface roughness Ra 2
The upper limit is more preferably less than 0.020 μm.
The upper limit of the surface roughness Ra 3 of link surface 40 is according to less than 0.10 μm, preferred less than the order of 0.020 μm.Table
The lower limit of surface roughness Ra3 is not particularly limited, such as, can be 0 or for identical with the surface roughness Ra 1 of convex surface 10a '
Value.
It should be noted that grinding pad such as can use resinous pad, grinding agent such as can use titanium dioxide
Cerium.
Providing the manufacture method of a kind of optical element, it includes using glass material for press molding 10 to be pressed into
The compressing operation of type.Such as, use mould that glass material for press molding is pressed, thus manufacture light
Learning element, this mould possesses upper die and lower die etc., and this upper mold is had the metal shape of thermostability and corrosion resistance by SUS etc.
Becoming and have the forming surface of convex, this lower mold has concave forming surface.
Glass material for press molding material 10 ' and (glass material for press molding) that can use in present embodiment
The material of middle explanation is identical.I.e., for example, boric acid lanthanide glass, phosphate-based glass, silica-based glass etc..
It addition, about the preferred physical property (wear intensity (F of glass material for press molding material 10 'A), Knoop hardness),
Also as the content illustrated with (glass material for press molding).That is, from the viewpoint of the attrition process of side end face, compacting
Molding wear intensity (the F of glass blank material 10 'A) be preferably less than 400, more preferably less than 200, more preferably
Less than 100.From the viewpoint of the attrition process of side end face, the Knoop hardness of glass material for press molding material 10 ' is excellent
Elect more than 400MPa, more preferably more than 500MPa, more preferably more than 600MPa as.
In glass material for press molding 10, make the surface roughness Ra of side end face 11 less than 0.10 μm, therefore suppressing
In molding, the end of the side end face 11 being adjacent to convex surface 10a ' is involved in the forming surface side of mould, constitutes compressing obtaining
Optical element obtain edge part, even if in this case, also without compromising on the form accuracy of the compressing optical element obtained,
The optical element with desired optical property can be obtained with low cost.
Hereinafter, referring to the drawings while the present invention is summarized.
Glass material for press molding 10 possesses at least one convex surface that surface roughness Ra is the 1st surface roughness Ra 1
10a and be configured at the surrounding of convex surface 10a and side end face 11 that surface roughness Ra is the 2nd surface roughness Ra 2, the 2nd surface is thick
Rugosity Ra2 is less than 0.10 μm, and, the 2nd surface roughness Ra 2 is more than the 1st surface roughness Ra 1.
It addition, the manufacture method of glass material for press molding 10 possesses following operation:
Preparatory process, wherein, prepares glass material for press molding material 10 ', this glass material for press molding material
10 ' have at least one convex surface 10a ' and are configured at surrounding and the 1st table of surface roughness Ra ratio convex surface 10a ' of convex surface 10a '
The side end face 11 ' that surface roughness Ra1 is big；With
Grinding step, wherein, is ground, so that the surface roughness of side end face 11 ' is less than 0.10 μm and for being more than
2nd surface roughness Ra 2 of the 1st surface roughness Ra 1 of convex surface 10a '.
Symbol description
10,20,30: glass material for press molding
10a, 20a, 30a: convex surface
11: side end face
11a, 11a ': outer peripheral face
11b, 11b ': chamfered section
10 ': glass material for press molding material
10a ': the convex surface of glass material for press molding material
11 ': the side end face of glass material for press molding material
12: grinding pad
14: the fixing fixture of glass material for press molding material
16: pad fixing fixture
20b: tabular surface
30b: concave surface
40,40 ': link surface
Claims (11)
1. a glass material for press molding, it possesses:
Surface roughness Ra is at least one convex surface of the 1st surface roughness Ra 1；With
It is configured at the surrounding of described convex surface and side end face that surface roughness Ra is the 2nd surface roughness Ra 2,
Described 2nd surface roughness Ra 2 is less than 0.10 μm, and described 2nd surface roughness Ra 2 is thick more than described 1st surface
Rugosity Ra1.
2. glass material for press molding as claimed in claim 1, wherein, described side end face from the outward flange of described convex surface to
Outside is arranged continuously.
3. glass material for press molding as claimed in claim 1 or 2, it is further equipped with link surface, and this link surface configures
In the face contrary with described convex surface and be linked to described side end face,
The surface roughness Ra of described link surface is less than 0.10 μm.
4. the glass material for press molding as according to any one of claims 1 to 3, wherein, from described compressing glass
The summit of the described convex surface of the central axis direction of glass blank distance, delta h to described side end face is compressing relative to described
It is more than 0.15 with the ratio of the diameter D of the described convex surface of glass blank.
5. the glass material for press molding as according to any one of Claims 1 to 4, wherein, described compressing glass
The wear intensity of blank is less than 400.
6. the glass material for press molding as according to any one of Claims 1 to 5, wherein, described compressing glass
The hardness of blank is more than 400MPa.
7. a manufacture method for glass material for press molding, it possesses following operation:
Preparatory process, prepares glass material for press molding material, and this glass material for press molding material has at least one
Convex surface and be configured at the surrounding of described convex surface and the surface roughness Ra side more than the 1st surface roughness Ra of described convex surface
Face；With
Grinding step, is ground described side end face, thus obtains surface roughness Ra less than 0.10 μm and more than described convex
2nd surface roughness Ra 2 of described 1st surface roughness Ra 1 in face.
8. the manufacture method of glass material for press molding as claimed in claim 7, wherein, described grinding step is by making
Grinding pad and the relative movement of described side end face are carried out.
9. the manufacture method of glass material for press molding as claimed in claim 7 or 8, wherein, described compressing glass
The wear intensity of glass blank is less than 400.
10. the manufacture method of the glass material for press molding as according to any one of claim 7～9, wherein, described compacting
The hardness of molding glass blank is more than 400MPa.
The manufacture method of 11. 1 kinds of optical elements, it includes using the compressing use according to any one of claim 1～6
The compressing operation that glass blank is pressed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311407841.XA CN117361848A (en) | 2015-06-19 | 2016-06-13 | Glass blank for press molding, method for producing same, and method for producing optical element |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015124048A JP5927637B1 (en) | 2015-06-19 | 2015-06-19 | Glass material for press molding, method for producing glass material for press molding, and method for producing optical element |
| JP2015-124048 | 2015-06-19 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311407841.XA Division CN117361848A (en) | 2015-06-19 | 2016-06-13 | Glass blank for press molding, method for producing same, and method for producing optical element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106256794A true CN106256794A (en) | 2016-12-28 |
Family
ID=56089768
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610411132.2A Pending CN106256794A (en) | 2015-06-19 | 2016-06-13 | Glass material for press molding and its manufacture method and the manufacture method of optical element |
| CN202311407841.XA Pending CN117361848A (en) | 2015-06-19 | 2016-06-13 | Glass blank for press molding, method for producing same, and method for producing optical element |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202311407841.XA Pending CN117361848A (en) | 2015-06-19 | 2016-06-13 | Glass blank for press molding, method for producing same, and method for producing optical element |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5927637B1 (en) |
| KR (1) | KR102413018B1 (en) |
| CN (2) | CN106256794A (en) |
| TW (1) | TWI710531B (en) |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59116137A (en) * | 1982-12-20 | 1984-07-04 | Canon Inc | Manufacture of optical element |
| JP2011016675A (en) * | 2009-07-07 | 2011-01-27 | Olympus Corp | Method of manufacturing optical element |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0794328B2 (en) * | 1990-11-19 | 1995-10-11 | 松下電器産業株式会社 | Glass preform for optical element and method for manufacturing optical element |
| DE10102846B4 (en) | 2001-01-23 | 2012-04-12 | Pari Pharma Gmbh | aerosol generator |
| JP2009286677A (en) * | 2008-05-30 | 2009-12-10 | Ohara Inc | Optical glass, preform and optical element |
| JP5188269B2 (en) * | 2008-05-30 | 2013-04-24 | Ｈｏｙａ株式会社 | Optical glass, glass material for press molding, optical element blank, optical element, and production method thereof |
-
2015
- 2015-06-19 JP JP2015124048A patent/JP5927637B1/en active Active
-
2016
- 2016-04-29 KR KR1020160052789A patent/KR102413018B1/en active IP Right Grant
- 2016-06-13 CN CN201610411132.2A patent/CN106256794A/en active Pending
- 2016-06-13 CN CN202311407841.XA patent/CN117361848A/en active Pending
- 2016-06-17 TW TW105119069A patent/TWI710531B/en active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59116137A (en) * | 1982-12-20 | 1984-07-04 | Canon Inc | Manufacture of optical element |
| JP2011016675A (en) * | 2009-07-07 | 2011-01-27 | Olympus Corp | Method of manufacturing optical element |
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Also Published As
| Publication number | Publication date |
|---|---|
| TWI710531B (en) | 2020-11-21 |
| KR102413018B1 (en) | 2022-06-23 |
| JP5927637B1 (en) | 2016-06-01 |
| KR20160149997A (en) | 2016-12-28 |
| CN117361848A (en) | 2024-01-09 |
| JP2017007890A (en) | 2017-01-12 |
| TW201700413A (en) | 2017-01-01 |
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