WO2014131426A1 - Verfahren zum pressen eines optischen linsenelementes - Google Patents
Verfahren zum pressen eines optischen linsenelementes Download PDFInfo
- Publication number
- WO2014131426A1 WO2014131426A1 PCT/EP2013/003475 EP2013003475W WO2014131426A1 WO 2014131426 A1 WO2014131426 A1 WO 2014131426A1 EP 2013003475 W EP2013003475 W EP 2013003475W WO 2014131426 A1 WO2014131426 A1 WO 2014131426A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lens element
- optical lens
- upper mold
- lower mold
- mold
- Prior art date
Links
Classifications
-
- 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
- C03B11/005—Pressing under special atmospheres, e.g. inert, reactive, vacuum, clean
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2215/00—Press-moulding glass
- C03B2215/40—Product characteristics
- C03B2215/41—Profiled surfaces
- C03B2215/414—Arrays of products, e.g. lenses
Definitions
- the invention relates to a method for pressing an optical lens element, in particular an array having a plurality of lenses, in particular a microlens array, by means of at least one lower mold and at least one upper mold.
- the aforementioned object is achieved by a method for pressing an optical lens element, in particular an array having a plurality of lenses, in particular a microlens array, by means of at least one lower mold and at least one upper mold,
- a blank according to the invention is in particular a Gob.
- a heated blank may be a blank (reheated from room temperature) in the context of the invention.
- a heated blank according to the invention may also be a blank which has been tempered and / or whose temperature gradient has been reversed. The reversal of temperature gradients is disclosed, for example, in DE 20 2006 005 261 U1 or DE 1 1 2007 000 182.8.
- a heated blank according to the invention has in particular a temperature which is so high that it can be pressed or blank pressed.
- a subform in the sense of the invention may be, for example, a plate or a form plate.
- a seal according to the invention comprises in particular a bellows or a bellows.
- a seal according to the invention comprises in particular a bellows or bellows made of metal.
- a suitable metal is for example steel and / or aluminum.
- a seal according to the invention does not affect in particular the lower mold and / or the upper mold.
- a seal according to the invention is in particular spaced from the upper mold and / or from the lower mold.
- a suitable distance is in particular not less than 10 mm.
- An optical lens element in the sense of the invention has in particular a surface or an optically active surface which comprises a microstructure or a grid-shaped microstructure or a periodic microstructure or a grid-shaped periodic microstructure.
- a suitable microstructure is disclosed, for example, in DE 10 2008 023 551 A1.
- a microstructure in the sense of the invention is in particular a structure with an extension or amplitude in the, in particular single-digit, micrometer range.
- An optically effective surface in the sense of the invention is in particular a surface on which, when the optical lens element is used as intended, the direction of light passing through this surface is changed.
- Transparent material is in the sense of the invention, in particular glass.
- Transparent material is in the context of the invention, in particular inorganic glass.
- Transparent material is in the sense of the invention, in particular silicate glass.
- Transparent material is in the context of the invention, in particular B270.
- Transparent material is in the context of the invention, in particular F2.
- Transparent material is in the context of the invention, in particular glass, such as it is described in PCT / EP2008 / 010136.
- Glass according to the invention comprises in particular
- blank presses are to be understood in particular to press an optically active surface in such a way that a subsequent reworking of the contour of this optically effective surface can be dispensed with or is omitted or not provided for. It is thus provided in particular that a bright-pressed surface is not ground after the blank presses.
- the upper mold and the lower mold can be approached to each other by moving the upper mold on the lower mold and / or the lower mold on the upper mold (vertical).
- the upper mold and the lower mold are in particular fed to each other until they touch or form a closed overall shape.
- step (b) the upper mold and the lower mold are moved together in particular so far that the distance (in particular the vertical distance) between the upper mold and the blank is not less than 4 mm and / or not more than 10 mm.
- step (f) (at step (e) subsequently or after step (e)) generates normal pressure in the airtight space.
- Normal pressure within the meaning of the invention is in particular atmospheric (air) pressure.
- Normal pressure within the meaning of the invention is in particular the pressure prevailing outside the seal or air pressure.
- the seal is opened or moved back to its original position.
- step (g) (subsequently or afterwards, or during step (f)) the top and bottom molds are separated.
- the upper mold and the lower mold can be moved apart by moving the upper mold away from the lower mold and / or moving the lower mold away from the upper mold.
- the optical lens element is removed in a further advantageous embodiment of the invention.
- the optical lens element is cooled in accordance with a predetermined cooling regime.
- a predetermined waiting time is awaited before the pressing of the optical lens element (or between step (d) and step (e)).
- the predetermined waiting time is not more than 3s (minus the duration of step (d)).
- the predetermined waiting time is not less than 1 s (minus the duration of step (d)).
- the negative pressure is not greater than 0.1 bar, not greater than 0.05 bar.
- FIG. 2 shows an exemplary embodiment of a mold for carrying out the method according to FIG. 1, FIG.
- FIG. 3 shows an exemplary embodiment of an upper mold of the mold according to FIG. 2 for carrying out the method according to FIG. 1, FIG.
- FIG. 4 shows an embodiment of an optical lens element in a side view
- FIG. 5 shows the optical lens element according to FIG. 4 in a plan view.
- Fig. 1 shows an embodiment of a method for pressing an optical lens element, as it is exemplified in Fig. 4 and Fig. 5 disclosed.
- It is in one step 101 is heated from a transparent material blank or eg tempered so that it is colder inside than outside. However, it can also be provided that the blank is heated in such a way that it has an approximately homogeneous temperature distribution. The blank may (partly) come out of the melt.
- step 102 in which the heated blank is placed in or on a lower mold.
- a suitable mold for pressing the optical lens element is shown in FIG. 2, wherein the mold is shown in a cross section.
- reference numeral 1 denotes the lower mold and reference numeral 2 a - in Fig.
- the mold comprises a seal which has a bellows 5 not shown in cross-section and an upper sealing surface 6 and a lower sealing surface 7.
- the seal are associated with hydraulic cylinders 8 and 9, by means of which the upper sealing surface 6 can be moved up and down. When lowering the upper sealing surface 6, the bellows unfolded. 5
- step 103 in which the upper mold and the lower mold are closed to each other, without the upper mold and the lower mold form a closed overall shape.
- step 104 the upper sealing surface 6 is moved to the lower sealing surface 7 to produce an airtight space in which the upper mold 2 and the lower mold 1 are arranged.
- the seal formed from bellows 5 and upper sealing surface 6 in cooperation with the lower sealing surface 7, closed.
- a negative pressure of about 0.05 bar is generated in the airtight space.
- the process is stopped so that the duration of the step 105 corresponds to a predetermined duration.
- a predetermined duration is not less than 1 second and / or not more than 3 seconds.
- a subsequent step 106 the blank is blank-pressed by bringing the upper and lower molds together to form the optical lens element, a closed overall shape being formed by the collapse of the upper mold and lower mold. It follows a step 107, in which the upper mold and the lower mold are moved apart. In a subsequent step 108, the optical lens element is removed and fed to a cooling path for cooling according to a predetermined cooling regime.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112013004086.7T DE112013004086A5 (de) | 2013-02-27 | 2013-11-19 | Verfahren zum Pressen eines optischen Linsenelementes |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013003224.5A DE102013003224A1 (de) | 2013-02-27 | 2013-02-27 | Verfahren zum Pressen eines optischen Linsenelementes |
DE102013003224.5 | 2013-02-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014131426A1 true WO2014131426A1 (de) | 2014-09-04 |
Family
ID=49679474
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2013/003475 WO2014131426A1 (de) | 2013-02-27 | 2013-11-19 | Verfahren zum pressen eines optischen linsenelementes |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE102013003224A1 (de) |
WO (1) | WO2014131426A1 (de) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021008657A1 (de) | 2019-07-13 | 2021-01-21 | Docter Optics Se | Verfahren zur herstellung einer scheinwerferlinse für einen fahrzeugscheinwerfer |
WO2021008647A1 (de) | 2019-07-13 | 2021-01-21 | Docter Optics Se | Verfahren zur herstellung eines optischen elementes aus glas |
WO2021069026A1 (de) | 2019-10-09 | 2021-04-15 | Docter Optics Se | Verfahren zum herstellen eines optischen elementes, insbesondere einer scheinwerferlinse für einen kraftfahrzeugscheinwerfer |
WO2021104583A1 (de) | 2019-11-28 | 2021-06-03 | Docter Optics Se | Verfahren zur herstellung eines optischen elementes aus glas |
DE102020116793A1 (de) | 2020-01-15 | 2021-07-15 | Docter Optics Se | Verfahren zur Herstellung eines optischen Elementes aus Kunststoff |
WO2021244707A1 (de) | 2020-06-05 | 2021-12-09 | Docter Optics Se | Verfahren zur herstellung eines optischen elementes aus glas |
DE102020127639A1 (de) | 2020-10-20 | 2022-04-21 | Docter Optics Se | Verfahren zur Herstellung eines optischen Elementes aus Glas |
DE102020127638A1 (de) | 2020-10-20 | 2022-04-21 | Docter Optics Se | Optisches Element aus Glas |
WO2022083828A1 (de) | 2020-10-20 | 2022-04-28 | Docter Optics Se | Verfahren zur herstellung eines optischen elementes aus glas |
DE102021130715A1 (de) | 2020-12-03 | 2022-06-09 | Docter Optics Se | Verfahren zur Herstellung eines optischen Elementes aus Glas |
DE102022101728A1 (de) | 2021-02-01 | 2022-08-04 | Docter Optics Se | Verfahren zur Herstellung eines optischen Elementes aus Glas |
DE102021105560A1 (de) | 2021-03-08 | 2022-09-08 | Docter Optics Se | Verfahren zur Herstellung eines optischen Elementes aus Glas |
US11643352B2 (en) | 2019-05-03 | 2023-05-09 | Docter Optics Se | Method for manufacturing an optical element out of glass |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3844755A (en) * | 1972-11-16 | 1974-10-29 | Eastman Kodak Co | Method and apparatus for transfer molding glass lenses |
JPH11236226A (ja) * | 1998-02-25 | 1999-08-31 | Sumitomo Heavy Ind Ltd | ガラス成形機及びガラス成形方法 |
JP2001304418A (ja) * | 2000-04-25 | 2001-10-31 | Canon Inc | プレス成形装置における弾性シール部材の保護機構および保護方法 |
JP2002114524A (ja) * | 2000-09-29 | 2002-04-16 | Sony Corp | レンズ製造装置及びレンズ製造方法 |
JP2003048728A (ja) * | 2001-08-03 | 2003-02-21 | Konica Corp | プレス成形装置及びプレス成形方法 |
DE202006005261U1 (de) | 2006-03-30 | 2006-06-08 | Docter Optics Gmbh | Vorrichtung zum Blankpressen von lichtbrechenden Glasteilen |
JP2007008735A (ja) * | 2005-06-28 | 2007-01-18 | Takeuchi Manufacturing Co Ltd | 光学製品成形装置 |
DE102008023551A1 (de) | 2008-05-14 | 2009-11-19 | Automotive Lighting Reutlingen Gmbh | Optische Linse für Beleuchtungszwecke und Beleuchtungseinrichtung mit einer solchen Linse |
JP2012240877A (ja) * | 2011-05-18 | 2012-12-10 | Toshiba Mach Co Ltd | 成形材料特性測定装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004196651A (ja) * | 2002-12-04 | 2004-07-15 | Fuji Electric Device Technology Co Ltd | 記憶媒体用ガラス基板の製造方法および装置、記憶媒体用ガラス基板及び記憶媒体 |
CN100419468C (zh) * | 2004-02-12 | 2008-09-17 | Hoya株式会社 | 制造玻璃光学元件的装置和方法及由此制造的玻璃光学元件 |
DE112007000182B4 (de) * | 2006-02-23 | 2022-07-28 | Docter Optics Se | Verfahren zum Blankpressen einer Kraftfahrzeugscheinwerferlinse oder einer linsenartigen Freiform für einen Kraftfahrzeugscheinwerfer |
WO2009109209A1 (de) | 2008-03-03 | 2009-09-11 | Docter Optics Gmbh | Verfahren zum herstellen eines optischen glasteils, insbesondere einer kraftfahrzeugscheinwerferlinse |
-
2013
- 2013-02-27 DE DE102013003224.5A patent/DE102013003224A1/de not_active Withdrawn
- 2013-11-19 DE DE112013004086.7T patent/DE112013004086A5/de active Pending
- 2013-11-19 WO PCT/EP2013/003475 patent/WO2014131426A1/de active Application Filing
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3844755A (en) * | 1972-11-16 | 1974-10-29 | Eastman Kodak Co | Method and apparatus for transfer molding glass lenses |
JPH11236226A (ja) * | 1998-02-25 | 1999-08-31 | Sumitomo Heavy Ind Ltd | ガラス成形機及びガラス成形方法 |
JP2001304418A (ja) * | 2000-04-25 | 2001-10-31 | Canon Inc | プレス成形装置における弾性シール部材の保護機構および保護方法 |
JP2002114524A (ja) * | 2000-09-29 | 2002-04-16 | Sony Corp | レンズ製造装置及びレンズ製造方法 |
JP2003048728A (ja) * | 2001-08-03 | 2003-02-21 | Konica Corp | プレス成形装置及びプレス成形方法 |
JP2007008735A (ja) * | 2005-06-28 | 2007-01-18 | Takeuchi Manufacturing Co Ltd | 光学製品成形装置 |
DE202006005261U1 (de) | 2006-03-30 | 2006-06-08 | Docter Optics Gmbh | Vorrichtung zum Blankpressen von lichtbrechenden Glasteilen |
DE102008023551A1 (de) | 2008-05-14 | 2009-11-19 | Automotive Lighting Reutlingen Gmbh | Optische Linse für Beleuchtungszwecke und Beleuchtungseinrichtung mit einer solchen Linse |
JP2012240877A (ja) * | 2011-05-18 | 2012-12-10 | Toshiba Mach Co Ltd | 成形材料特性測定装置 |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11643352B2 (en) | 2019-05-03 | 2023-05-09 | Docter Optics Se | Method for manufacturing an optical element out of glass |
WO2021008657A1 (de) | 2019-07-13 | 2021-01-21 | Docter Optics Se | Verfahren zur herstellung einer scheinwerferlinse für einen fahrzeugscheinwerfer |
WO2021008647A1 (de) | 2019-07-13 | 2021-01-21 | Docter Optics Se | Verfahren zur herstellung eines optischen elementes aus glas |
WO2021069026A1 (de) | 2019-10-09 | 2021-04-15 | Docter Optics Se | Verfahren zum herstellen eines optischen elementes, insbesondere einer scheinwerferlinse für einen kraftfahrzeugscheinwerfer |
WO2021104583A1 (de) | 2019-11-28 | 2021-06-03 | Docter Optics Se | Verfahren zur herstellung eines optischen elementes aus glas |
WO2021104558A1 (de) | 2019-11-28 | 2021-06-03 | Docter Optics Se | Verfahren zur herstellung eines optischen elementes aus glas |
DE102020116793A1 (de) | 2020-01-15 | 2021-07-15 | Docter Optics Se | Verfahren zur Herstellung eines optischen Elementes aus Kunststoff |
WO2021143981A1 (de) | 2020-01-15 | 2021-07-22 | Docter Optics Se | Verfahren zur herstellung eines optischen elementes aus kunststoff |
DE102020115079A1 (de) | 2020-06-05 | 2021-12-09 | Docter Optics Se | Verfahren zur Herstellung eines optischen Elementes aus Glas |
WO2021244707A1 (de) | 2020-06-05 | 2021-12-09 | Docter Optics Se | Verfahren zur herstellung eines optischen elementes aus glas |
DE102020127639A1 (de) | 2020-10-20 | 2022-04-21 | Docter Optics Se | Verfahren zur Herstellung eines optischen Elementes aus Glas |
DE102020127638A1 (de) | 2020-10-20 | 2022-04-21 | Docter Optics Se | Optisches Element aus Glas |
WO2022083828A1 (de) | 2020-10-20 | 2022-04-28 | Docter Optics Se | Verfahren zur herstellung eines optischen elementes aus glas |
DE102021130715A1 (de) | 2020-12-03 | 2022-06-09 | Docter Optics Se | Verfahren zur Herstellung eines optischen Elementes aus Glas |
DE102022101728A1 (de) | 2021-02-01 | 2022-08-04 | Docter Optics Se | Verfahren zur Herstellung eines optischen Elementes aus Glas |
DE102022102113A1 (de) | 2021-02-01 | 2022-08-04 | Docter Optics Se | Verfahren zur herstellung eines optischen elementes aus glas |
DE102021105560A1 (de) | 2021-03-08 | 2022-09-08 | Docter Optics Se | Verfahren zur Herstellung eines optischen Elementes aus Glas |
Also Published As
Publication number | Publication date |
---|---|
DE112013004086A5 (de) | 2015-05-13 |
DE102013003224A1 (de) | 2014-08-28 |
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