CN102371642A - Forming Device And Forming Method - Google Patents
Forming Device And Forming Method Download PDFInfo
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- CN102371642A CN102371642A CN2011102323899A CN201110232389A CN102371642A CN 102371642 A CN102371642 A CN 102371642A CN 2011102323899 A CN2011102323899 A CN 2011102323899A CN 201110232389 A CN201110232389 A CN 201110232389A CN 102371642 A CN102371642 A CN 102371642A
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- temperature
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- forming face
- mould
- thermoregulation mechanism
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Abstract
The invention provides a forming device and a forming method. Forming precision is improved in the compressing and forming of a pre-forming body. The forming device is provided with a pair of molds (10, 11) pressing the pre-forming body (2) in the middle for compressing; and a temperature adjusting mechanism (5) adjusting temperature of at least one mold of the pair of the molds (10,11). The temperature adjusting mechanism (5) makes a high temperature area expand towards an outer diameter from the center of a contact part along with the compression of the pre-forming body (2). The high temperature area, which has a high temperature than a softening temperature of the pre-forming body (2), is in a forming face of a mold for temperature adjusting by the temperature adjusting mechanism. The contact part is a contact part of a forming face contacting with the pre-forming body (2) when the compression of the pre-forming body (2) starts.
Description
Technical field
The present invention relates to a kind ofly add the hot compression preform and form, and the formed body that obtains is carried out the shaped device and the manufacturing process of cooling curing.
Background technology
For example the preform that is made up of optical materials such as glass is added hot compression and form the lens shape that shape is a regulation, and the formed body that obtains is carried out cooling curing and obtains lens.In the building mortion that is used in this kind compression molding, the known device (for example, with reference to patent documentation 1,2) that has a kind of wall thickness to come the forming face of mould is applied Temperature Distribution according to formed body.
The building mortion that patent documentation 1,2 is put down in writing forming face to mould when being cooled to body applies Temperature Distribution, and makes the cooling velocity on heavy section surface faster than the cooling velocity on the thinner wall section surface of formed body.Thus, prevent that heavy section from producing burr and improving forming accuracy.
[patent documentation 1] japanese kokai publication sho 62-95210 communique
[patent documentation 2] japanese kokai publication sho 63-159227 communique
The Temperature Distribution of the forming face of the mould when though patent documentation 1,2 has stipulated that all formed body carried out cooling curing; Wherein this formed body is that preform is added hot compression and the formed body that obtains, but the Temperature Distribution of the forming face of the mould of patent documentation 1,2 when not considering that all preform added hot compression is to the influence of forming accuracy.
Preform typically is between forming face radially and extends under the effect that adds hot compression.At this moment; For example when optics uses forming face in the shaping of lens etc. as the shape of complicacy etc.; The outer edge of preform contacts at the initial stage that adds hot compression with the forming face of mould; More softening earlier and be attached to forming face than the central portion of preform, thus between preform and forming face, produce the airtrapping place, and this airtrapping place can remain on the formed body as depression.
Summary of the invention
The present invention In view of the foregoing makes, and its purpose is to improve the forming accuracy in the compression molding of preform.
(1) a kind of building mortion, it possesses: a pair of mould that preform is clipped in the middle and compresses; Regulate the thermoregulation mechanism of the temperature of at least one side's mould in the said a pair of mould; Wherein, It is that the center enlarges towards outside diameter gradually corresponding to the carrying out of the compression of said preform with the contact site that said thermoregulation mechanism makes high-temperature area; This high-temperature area is to carry out the zone more than the softening temperature that becomes said preform in the forming face of thermoregulator mould by this thermoregulation mechanism, and this contact site is the contact site of the said forming face that when the compression of said preform begins, contacts with said preform.
(2) a kind of manufacturing process; Utilize a pair of mold heated compression preform and form; Wherein, Regulate the temperature of at least one side's mould in the said a pair of mould; Making high-temperature area is that the center enlarges towards outside diameter gradually corresponding to the carrying out of the compression of said preform with the contact site, and this high-temperature area is carried out the zone more than the softening temperature that becomes said preform in the forming face of thermoregulator mould, and this contact site is the contact site of the said forming face that when the compression of said preform begins, contacts with said preform.
[invention effect]
According to the present invention, in the compression molding of preform, can improve forming accuracy.
Description of drawings
Fig. 1 is the figure of an example that is used to explain the expression building mortion of embodiment of the present invention.
Fig. 2 is a pair of mould and the figure of thermoregulation mechanism of the building mortion of presentation graphs 1.
Fig. 3 is the figure of the III-III line section of presentation graphs 2.
Fig. 4 is that expression utilizes the building mortion of Fig. 1 to add the hot compression preform and the figure of the operation that forms.
Fig. 5 is that expression utilizes the building mortion of Fig. 1 formed body to be carried out the figure of the operation of cooling curing.
Fig. 6 is the variation of the building mortion of Fig. 1, is the figure of a pair of mould of expression and thermoregulation mechanism.
Fig. 7 is that expression utilizes the building mortion of Fig. 6 to add the hot compression preform and the figure of the operation that forms.
Fig. 8 is that expression utilizes the building mortion of Fig. 6 formed body to be carried out the figure of the operation of cooling curing.
Symbol description:
1 building mortion
2 preforms
3 shaping dies
4 driving mechanisms
5 thermoregulation mechanisms
6 controllers
7 base stations
8 formed bodies
10 molds
11 bed dies
12 forming faces
13 forming faces
14 heater accepting holes
15 gas communication holes
16 sensor accepting holes
17 main body moulds
20 heaters
21 blow nozzle
22 temperature sensors
The specific embodiment
Fig. 1 representes an example of building mortion.
The building mortion that Fig. 1 representes will be configured as the lens shape of regulation by the preform that optical materials such as glass, thermoplastic transparent resin constitute, and the formed body that obtains is carried out cooling curing and obtains lens.
On the opposed faces of mold 10 and bed die 11, be respectively equipped with forming face.The forming face 12 of mold 10 and the forming face 13 of bed die 11 form the shape after the shape transposing of the optical surface of the table back of the body of the lens that preform 2 formed and obtain.In embodiment illustrated, be that the optical surface of concave curved surface and dorsal part is the building mortion of the lens of convex surface as the optical surface that obtains showing side, the forming face 12 of mold 10 is a convex surface, the forming face 13 of bed die 11 is a concave curved surface.
Bed die 11 and main body mould were put on base station 7 in 17 years, and mold 10 is kept by driving mechanism 4.Driving mechanism 4 for example uses working cylinder, piston etc., and mold 10 is moved up and down.Thus, the interval of the forming face 13 of the forming face 12 of mold 10 and bed die 11 is exaggerated or dwindles.Need to prove, also can replace and make the situation that mold 10 moves up and down and bed die 11 is moved up and down, mold 10 and bed die 11 these both sides are moved up and down.
Fig. 2 and Fig. 3 at length represent thermoregulation mechanism 5 and accompany the structure of the mold 10 and the bed die 11 of thermoregulation mechanism 5.
On mold 10, be formed with a plurality of heater accepting holes 14 and a plurality of gas communication hole 15, and, be embedded with a plurality of temperature sensors 22.Above-mentioned heater accepting hole 14 and gas communication hole 15 and temperature sensor 22 are along forming face 12 decentralized configuration.With reference to Fig. 3, the central portion that a plurality of heater accepting hole 14 configurations form with forming face 12 is a plurality of row of the concentric circles at center.It is a plurality of row of the concentric circles at center that a plurality of gas communication hole 15 also disposes the central portion that forms with forming face 12.The row alternate configurations in the row of heater accepting hole 14 and gas communication hole 15.And the central portion that a plurality of temperature sensors 22 form with forming face 12 is a plurality of row of the concentric circles at center, and the row of temperature sensor 22 are configured between the row in adjacent heater accepting hole 14 and gas communication hole 15.
In each heater accepting hole 14, be inserted with heater 20, in each gas communication hole 15, be inserted with and blow nozzle 21.Each heater 20 is by the supply capability independently of illustrated power supply never, respectively blows nozzle 21 is supplied with low temperature independently by illustrated pump never gas.And, near the temperature inside of each temperature sensor 22 detection mold 10 forming face 12.Control based on the temperature of the each several part of each temperature sensor 22 detected mold 10 by controller 6 to the supply of the electric power of each heater 20 and to the supply of the cryogenic gas that respectively blows nozzle 21.Thus, on the forming face 12 of mold 10, forming temperature desired distributes.
Likewise, on bed die 11, also be formed with a plurality of heater accepting holes 14 and a plurality of gas communication hole 15, and, be embedded with a plurality of temperature sensors 22.Above-mentioned heater accepting hole 14 and gas communication hole 15 and temperature sensor 22 are along forming face 13 decentralized configuration.The central portion that a plurality of heater accepting hole 14 configurations form with forming face 13 is a plurality of row of the concentric circles at center.It is a plurality of row of the concentric circles at center that a plurality of gas communication hole 15 also disposes the central portion that forms with forming face 13.The row alternate configurations in the row of heater accepting hole 14 and gas communication hole 15.And the central portion that a plurality of temperature sensors 22 form with forming face 13 is a plurality of row of the concentric circles at center, and the row of temperature sensor 22 are configured between the row in adjacent heater accepting hole 14 and gas communication hole 15.
In each heater accepting hole 14, be embedded with heater 20, in each gas communication hole 15, be inserted with and blow nozzle 21.Each heater 20 is by the supply capability independently of illustrated power supply never, respectively blows nozzle 21 is supplied with low temperature independently by illustrated pump never gas.And, near the temperature inside of each temperature sensor 22 detection bed die 11 forming face 13.Control based on the temperature of the each several part of each temperature sensor 22 detected bed die 11 by controller 6 to the supply of the electric power of each heater 20 and to the supply of the cryogenic gas that respectively blows nozzle 21.Thus, on the forming face 13 of bed die 11, forming temperature desired distributes.
Fig. 4 representes to utilize building mortion 1 to add hot compression preform 2 and the operation that forms.In the drawings, the Temperature Distribution of representing the forming face 12 of the mold 10 in each operation in the lump.
Upload in the forming face 13 of bed die 11 and to put preform 2.The forming face 13 of bed die 11 is concave curved surfaces, and preform 2 is positioned at the central portion of the forming face 13 of bed die 11.Then, mold 10 descends, and preform 2 is clipped between the forming face 13 of forming face 12 and bed die 11 of mold 10.The forming face 12 of mold 10 centre portion therein contacts with preform 2, and, the forming face 13 of bed die 11 also therein centre portion contact with preform 2.The central portion of the forming face 12 of mold 10 becomes the above high-temperature area of softening temperature (glass transition temperature) Tg of preform.Likewise, the central portion of the forming face 13 of bed die 11 also becomes the above high-temperature area of softening temperature Tg of preform.(Fig. 4 A)
In the whole die cavity that is surrounded by mold 10 and bed die 11 and main body mould 17, be full of preform 2, when the finishing based on the shaping that adds hot compression of preform 2, the decline of mold 10 stops.Under this state, forming face 13 integral body of the forming face 12 of mold 10 and bed die 11 become high-temperature area.(Fig. 4 C)
In above operation, forming face 13 high-temperature area separately of the forming face 12 of mold 10 and bed die 11 forms that distance between forming face is more little to be the Temperature Distribution of high temperature more.Distance when between forming face more hour, the wall thickness of the preform 2 here is more little, more easily cooling.Therefore; Form through Temperature Distribution that distance between forming face is more little to be the Temperature Distribution of high temperature more with two forming faces 12,13 high-temperature area separately; And the softening part that makes preform 2 is even temperature roughly, the generation that can suppress to be out of shape and improve forming accuracy.In embodiment illustrated, the forming face 12 of mold 10 is a convex surface, and the forming face 13 of bed die 11 is a concave curved surface, and the distance between forming face leans on central portion more little more.Therefore, the Temperature Distribution of two forming faces 12,13 high-temperature area separately becomes more and to lean on central portion to be the Temperature Distribution of high temperature more.Said temperature distributes and is formed by thermoregulation mechanism 5.Especially lens shape is typical target rotation, therefore is separately positioned on a plurality of heaters 20 and a plurality of gas communication hole 15 on mold 10 and the bed die 11 through a plurality of row that form concentric circles, can form easily.
Fig. 5 representes to utilize 1 pair of formed body of building mortion to carry out the operation of cooling curing.In the drawings, represent formed body is carried out the Temperature Distribution of the forming face 12 of the mold 10 in the operation of cooling curing in the lump.
Formed body 8 is cooled with the state between the forming face 13 of the forming face 12 that is clipped in mold 10 and bed die 11 and solidifies, and wherein to be that preform 2 is configured as the lens shape of regulation through above-mentioned forming processes resulting for this formed body 8.At this moment, the distance that forms between forming face of the forming face 13 of the forming face 12 of mold 10 and bed die 11 is the Temperature Distribution of low temperature more greatly more.When the distance between forming face was big more, the wall thickness of the formed body 8 here was big more, was difficult to cooling more.Therefore; Distance through two forming faces 12,13 Temperature Distribution separately being formed between forming face is the Temperature Distribution of low temperature more greatly more; And can make formed body 8 integral body with the cooling of even velocity roughly, can be suppressed to the burr that the part of body 8 produces and improve forming accuracy.In embodiment illustrated, the forming face 12 of mold 10 is a convex surface, and the forming face 13 of bed die 11 is a concave curved surface, and the distance between forming face leans on the outer edge big more more.Therefore, two forming faces 12,13 Temperature Distribution separately becomes more and to lean on the outer edge to be the Temperature Distribution of low temperature more.Said temperature distributes and is formed by thermoregulation mechanism 5.Especially lens shape is typical target rotation, therefore is separately positioned on a plurality of heaters 20 and a plurality of gas communication hole 15 (with reference to Fig. 2) on mold 10 and the bed die 11 through a plurality of row that form concentric circles, can form easily.And, distribute through said temperature, also can improve the cooling effectiveness of formed body 8.
Fig. 6 representes the variation of building mortion 1.Need to prove, to the general general symbol of element annotation of above-mentioned building mortion 1, and omit or simplified illustration.
Building mortion 101 shown in Figure 6 is that preform 2 is formed and the optical surface that obtains showing to carry on the back all is the device of the lens of convex surface.Thus, the forming face 13 of the forming face 12 of mold 10 and bed die 11 all forms concave curved surface.
Fig. 7 representes to utilize building mortion 101 to add hot compression preform 2 and the operation that forms.In the drawings, the Temperature Distribution of representing the forming face 12 of the mold 10 in each operation in the lump.
Upload in the forming face 13 of bed die 11 and to put preform 2.The forming face 13 of bed die 11 is concave curved surfaces, and preform 2 is positioned at the central portion of the forming face 13 of bed die 11.Then, mold 10 descends, and preform 2 is clipped between the forming face 13 of forming face 12 and bed die 11 of mold 10.The forming face 12 of mold 10 centre portion therein contacts with preform 2, and, the forming face 13 of bed die 11 also therein centre portion contact with preform 2.The central portion of the forming face 12 of mold 10 becomes the above high-temperature area of softening temperature (glass transition temperature) Tg of preform 2.Likewise, the central portion of the forming face 13 of bed die 11 also becomes the above high-temperature area of softening temperature Tg of preform 2.(Fig. 7 A)
In the whole die cavity that is surrounded by mold 10 and bed die 11 and main body mould 17, be full of preform 2, when the finishing based on the shaping that adds hot compression of preform 2, the decline of mold 10 stops.Under this state, forming face 13 integral body of the forming face 12 of mold 10 and bed die 11 become high-temperature area.(Fig. 7 C)
In above operation, forming face 13 high-temperature area separately of the forming face 12 of mold 10 and bed die 11 forms that distance between forming face is more little to be the Temperature Distribution of high temperature more.In embodiment illustrated, the forming face 12 of mold 10 and the forming face 13 of bed die 11 are concave curved surface all, and the distance between forming face leans on the outer edge more little more.Therefore, the Temperature Distribution of two forming faces 12,13 high-temperature area separately becomes more and to lean on the outer edge to be the Temperature Distribution of high temperature more.
Fig. 8 representes to utilize 101 pairs of formed bodies of building mortion 8 to carry out the operation of cooling curing.In the drawings, represent formed body 8 is carried out the Temperature Distribution of the forming face 12 of the mold 10 in the operation of cooling curing in the lump.
Above-mentioned example all is preform is formed and to obtain the device of lens, but the present invention is not limited to lens, also goes for preform is configured as the device of the formed body of different shape.
As described above said, a kind of building mortion is disclosed in this manual, it possesses: a pair of mould that preform is clipped in the middle and compresses; Regulate the thermoregulation mechanism of at least one side's in the said a pair of mould mold temperature; Wherein, It is that the center enlarges towards outside diameter gradually corresponding to the carrying out of the compression of said preform with the contact site that said thermoregulation mechanism makes high-temperature area; This high-temperature area is to carry out the zone more than the softening temperature that becomes said preform in the forming face of thermoregulator mould by this thermoregulation mechanism, and this contact site is the contact site of the said forming face that when the compression of said preform begins, contacts with said preform.
In addition, in the disclosed building mortion of this specification, said thermoregulation mechanism forms the Temperature Distribution of said high-temperature area that distance between the forming face of said a pair of mould is more little to be the Temperature Distribution of high temperature more.
In addition; In the disclosed building mortion of this specification; Said thermoregulation mechanism comprises being arranged on by this thermoregulation mechanism and carries out a plurality of heating arrangements on the thermoregulator mould that the said contact site that said a plurality of heating arrangements are configured to the said forming face of being carried out thermoregulator said mould by said thermoregulation mechanism is a plurality of row of the concentric circles at center.
In addition; In the disclosed building mortion of this specification; Said thermoregulation mechanism comprises also being arranged on by this thermoregulation mechanism and carries out a plurality of cooling bodies on the thermoregulator said shaping dies that the said contact site that said a plurality of cooling bodies are configured to the said forming face of being carried out thermoregulator said mould by said thermoregulation mechanism is a plurality of row of the concentric circles at center.
In addition; In the disclosed building mortion of this specification; The distance that said thermoregulation mechanism will be formed by the Temperature Distribution that this thermoregulation mechanism carries out the said forming face of thermoregulator said mould between the forming face of said a pair of mould is the Temperature Distribution of low temperature more greatly more, and the formed body that obtains being shaped said preform carries out cooling curing.
In addition, the disclosed building mortion of this specification will be configured as the lens shape of regulation by the preform that optical material constitutes.
In addition; A kind of manufacturing process is disclosed in this manual; Utilize a pair of mold heated compression preform and form; Wherein, regulate the temperature of at least one side's mould in the said a pair of mould, making high-temperature area is that the center enlarges towards outside diameter gradually corresponding to the carrying out of the compression of said preform with the contact site; This high-temperature area is carried out the zone more than the softening temperature that becomes said preform in the forming face of thermoregulator mould, and this contact site is the contact site of the said forming face that when the compression of said preform begins, contacts with said preform.
In addition, the disclosed manufacturing process of this specification forms the Temperature Distribution of said high-temperature area that distance between the forming face of said a pair of mould is more little to be the Temperature Distribution of high temperature more.
In addition; The distance that the Temperature Distribution that the disclosed manufacturing process of this specification will be carried out the said forming face of thermoregulator said mould forms between the forming face of said a pair of mould is the Temperature Distribution of low temperature more greatly more, and the formed body that obtains being shaped said preform carries out cooling curing.
In addition, the disclosed manufacturing process of this specification will be configured as the lens shape of regulation by the preform that optical material constitutes.
Claims (10)
1. building mortion, it possesses:
The a pair of mould that preform is clipped in the middle and compresses;
Regulate the thermoregulation mechanism of the temperature of at least one side's mould in the said a pair of mould,
It is that the center enlarges towards outside diameter gradually corresponding to the carrying out of the compression of said preform with the contact site that said thermoregulation mechanism makes high-temperature area; This high-temperature area is to carry out the zone more than the softening temperature that becomes said preform in the forming face of thermoregulator mould by this thermoregulation mechanism, and this contact site is the contact site of the said forming face that when the compression of said preform begins, contacts with said preform.
2. building mortion according to claim 1, wherein,
Said thermoregulation mechanism forms the Temperature Distribution of said high-temperature area that distance between the forming face of said a pair of mould is more little to be the Temperature Distribution of high temperature more.
3. building mortion according to claim 1 and 2, wherein,
Said thermoregulation mechanism comprises being arranged on by this thermoregulation mechanism and carries out a plurality of heating arrangements on the thermoregulator mould,
The said contact site that said a plurality of heating arrangements is configured to the said forming face of being carried out thermoregulator said mould by said thermoregulation mechanism is a plurality of row of the concentric circles at center.
4. building mortion according to claim 3, wherein,
Said thermoregulation mechanism also comprises being arranged on by this thermoregulation mechanism and carries out a plurality of cooling bodies on the thermoregulator said shaping dies,
The said contact site that said a plurality of cooling body is configured to the said forming face of being carried out thermoregulator said mould by said thermoregulation mechanism is a plurality of row of the concentric circles at center.
5. building mortion according to claim 1 and 2, wherein,
The distance that said thermoregulation mechanism will be formed by the Temperature Distribution that this thermoregulation mechanism carries out the said forming face of thermoregulator said mould between the forming face of said a pair of mould is the Temperature Distribution of low temperature more greatly more, and the formed body that obtains being shaped said preform carries out cooling curing.
6. building mortion according to claim 1 and 2, wherein,
To be configured as the lens shape of regulation by the preform that optical material constitutes.
7. manufacturing process utilizes a pair of mold heated compression preform and forms, wherein,
Regulate the temperature of at least one side's mould in the said a pair of mould; Making high-temperature area is that the center enlarges towards outside diameter gradually corresponding to the carrying out of the compression of said preform with the contact site; This high-temperature area is carried out the zone more than the softening temperature that becomes said preform in the forming face of thermoregulator mould, and this contact site is the contact site of the said forming face that when the compression of said preform begins, contacts with said preform.
8. manufacturing process according to claim 7, wherein,
The Temperature Distribution of said high-temperature area is formed distance between the forming face of said a pair of mould is more little to be the Temperature Distribution of high temperature more.
9. manufacturing process according to claim 8, wherein,
The distance that the Temperature Distribution that will be carried out the said forming face of thermoregulator said mould forms between the forming face of said a pair of mould is the Temperature Distribution of low temperature more greatly more, and the formed body that obtains being shaped said preform carries out cooling curing.
10. according to each described manufacturing process in the claim 7 to 9, wherein,
To be configured as the lens shape of regulation by the preform that optical material constitutes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-181982 | 2010-08-16 | ||
| JP2010181982A JP5453200B2 (en) | 2010-08-16 | 2010-08-16 | Molding apparatus and molding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102371642A true CN102371642A (en) | 2012-03-14 |
| CN102371642B CN102371642B (en) | 2015-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110232389.9A Expired - Fee Related CN102371642B (en) | 2010-08-16 | 2011-08-15 | Building mortion and manufacturing process |
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| Country | Link |
|---|---|
| JP (1) | JP5453200B2 (en) |
| CN (1) | CN102371642B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04357121A (en) * | 1991-05-30 | 1992-12-10 | Matsushita Electric Ind Co Ltd | Molding optical element and molding device therefor |
| CN2703635Y (en) * | 2004-03-08 | 2005-06-08 | 株式会社名机制作所 | Forming mould for CD substrate |
| CN1680201A (en) * | 2004-04-09 | 2005-10-12 | 柯尼卡美能达精密光学株式会社 | Metallic mold for optical element and optical element |
| JP2008069019A (en) * | 2006-09-12 | 2008-03-27 | Toshiba Mach Co Ltd | Optical element molding apparatus |
| CN101304953A (en) * | 2005-11-14 | 2008-11-12 | 旭硝子株式会社 | Method and apparatus for molding optical element |
-
2010
- 2010-08-16 JP JP2010181982A patent/JP5453200B2/en not_active Expired - Fee Related
-
2011
- 2011-08-15 CN CN201110232389.9A patent/CN102371642B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04357121A (en) * | 1991-05-30 | 1992-12-10 | Matsushita Electric Ind Co Ltd | Molding optical element and molding device therefor |
| CN2703635Y (en) * | 2004-03-08 | 2005-06-08 | 株式会社名机制作所 | Forming mould for CD substrate |
| CN1680201A (en) * | 2004-04-09 | 2005-10-12 | 柯尼卡美能达精密光学株式会社 | Metallic mold for optical element and optical element |
| CN101304953A (en) * | 2005-11-14 | 2008-11-12 | 旭硝子株式会社 | Method and apparatus for molding optical element |
| JP2008069019A (en) * | 2006-09-12 | 2008-03-27 | Toshiba Mach Co Ltd | Optical element molding apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012041213A (en) | 2012-03-01 |
| CN102371642B (en) | 2015-09-30 |
| JP5453200B2 (en) | 2014-03-26 |
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