WO2014026818A1 - Observation device for a vacuum device - Google Patents
Observation device for a vacuum device Download PDFInfo
- Publication number
- WO2014026818A1 WO2014026818A1 PCT/EP2013/065064 EP2013065064W WO2014026818A1 WO 2014026818 A1 WO2014026818 A1 WO 2014026818A1 EP 2013065064 W EP2013065064 W EP 2013065064W WO 2014026818 A1 WO2014026818 A1 WO 2014026818A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- observation
- receptacle
- tube
- window
- vacuum
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/004—Sight-glasses therefor
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/007—Pressure-resistant sight glasses
Definitions
- the present application relates to observation devices for vacuum devices, vacuum devices equipped with a corresponding observation device and methods for operating such observation devices.
- vacuum devices In many processes, workpieces are treated in a vacuum, ie at a pressure less than the ambient pressure. Such devices are generally referred to in this application as vacuum devices.
- An example of such vacuum apparatuses are coating devices in which workpieces in a vacuum for example, of the order of 10 "6 to 10" 7 hPa be coated, for example by appropriate coating materials are vaporized and deposited on the workpiece.
- Such coating devices can assume relatively large dimensions with several coating stations, between which the workpieces are transported, for example in order to be able to carry out a plurality of coating steps sequentially.
- observation windows are partially required, through which visual inspections can be carried out or via which optical measurements can be carried out, for example by analyzing light emerging through the window (optionally in conjunction with an excitation light source).
- observation windows often also have a sealing function, i. simply removing the window would leave behind a hole through which ambient air can flow into the vacuum device and thus destroy the vacuum. This can also lead to the destruction of pumps such as turbopumps.
- evaporated material for example, also deposits on such observation windows in coating systems, so that they become intransparent with time and must be replaced.
- simply swapping, ie, removing the viewing window and replacing it with a new one would cause the vacuum to be destroyed.
- the vacuum device controlled ventilated and temporarily shut down which is relatively complex and time consuming and therefore in terms of productivity is not desirable.
- an observation device according to claim 1 and a method for operating such an observation device according to claim 13 are provided.
- the dependent claims define further embodiments as well as a vacuum device equipped with such an observation device.
- an observation device for a vacuum apparatus comprising: an observation tube, and a movable member disposed transversely of the observation tube with a window member receptacle, the movable member being disposed between a first position in which the receptacle is disposed in the observation tube , and a second position in which the receptacle is arranged outside the observation tube, is movable.
- a window element can be easily changed by bringing the receptacle with the window element to be changed from the first position to the second position.
- the observer may include a seal between the viewing tube and the moveable member, wherein the receptacle in the second position is outside a sealed portion of the seal. By such a seal, a tightness of the observation device can be improved.
- the observation device may comprise a further receptacle for a window element. In this case, when the movable element is in the first position, the further receptacle is arranged outside the observation tube, and, when the movable element in the second position, the further recording is arranged in the observation tube. In such an embodiment, a time in which no observation by the observation tube is possible at a window change can be reduced by merely switching between the first position and the second position and thus bringing a new window element into the observation tube.
- the observation tube may be coupled to an optical system, for example to focus light emerging from a vacuum device through the observation tube into a light guide such as a glass fiber or in a measuring device.
- an optical system for example to focus light emerging from a vacuum device through the observation tube into a light guide such as a glass fiber or in a measuring device.
- the observation tube may be formed a transverse tube approach piece, through which the further element extends.
- cover caps for fitting to the pipe fitting so as to further improve, for example, a seal in a case where the movable member does not have to be moved.
- a vacuum device for example a coating device, is provided with such an observation device.
- a window element in particular a soiled window element, is exchanged by means of the observation device, as already described above.
- FIG. 1 is a perspective view of an observation device according to an embodiment of the invention.
- FIG. 1 is another perspective view of the embodiment of FIG. 1,
- Fig. 3 is a schematic cross-sectional view of the embodiment of Figures 1 and 2, and
- FIGS. 1 and 2 respectively show perspective views of the observation device, while Fig. 3 shows a cross-sectional view.
- the observation device 10 of FIGS. 1-3 has an observation tube 11, which can be flange-mounted via a flange 12 to a vacuum device, for example a coating device (indicated as 17 in FIG. 3). As indicated in Fig. 3 with a dashed arrow 1 18, 1 1 light from the vacuum device 1 17 can be coupled via the observation tube. Conversely, with such a monitoring device, however, also light can be coupled into a vacuum device.
- the observation tube 1 1 has a circular cross-section, but other cross-sectional shapes are possible, for example a rectangular cross-section.
- an optics 18 is provided at one of the flange 12 opposite end of the observation tube 1 1, to the vacuum device via the observation tube 1 1 coupled out light in an attached to a coupling piece 19 optical fiber 1 10, for example, a glass fiber, couple.
- the light can then be further examined, for example by means of a spectrometer.
- no optical fiber is provided and, for example, an analyzing device for analyzing the coupled-out light may be mounted directly on the observation tube 11.
- such an analysis device may be completely omitted, and the observation tube may be used to visually inspect the interior of the vacuum device 117.
- the observation tube 1 1 pipe extensions 13A, 13B, through which transverse to the observation tube 1 1, a movable element 14 extends, which in the direction of an arrow 1 14 (FIG. 3) is movable.
- the movable member 14 has a cylindrical shape, but there are other cross sections, for example, a square or rectangular cross-section or another at least partially constant cross-section possible.
- the movable element 14 has a first receptacle 15 in the form of a through hole and a second receptacle 16 in the form of a through hole. In the illustration of FIGS. 1-3, a window element in the form of an observation window 17 is accommodated in the second receptacle 16.
- the first receptacle 15, however, is empty.
- a position of the movable member 14 may be fixed by screws 12A and 112B or other members to prevent inadvertent movement of the movable member 14.
- annular sealing elements 1 15A, 1 15B for example, plastic seals, which seal between the Rohransatz Cultureen 13 A, 13 B and the movable member 14.
- the movable member 14 may fit snugly within the tube lugs 13A, 13B so that the seal achieves a seal.
- the interior of the vacuum device 1 17 is sealed by the observation window 17 and the sealing elements 15A, 15B.
- the observation window can be fixed in the receptacle 16 by fixing means, such as a screw or a pin, and / or can be sealed to the movable element 14 by means of a suitable seal, for example a rubber seal.
- observation window 17 is dirty and has to be replaced, a new observation window is inserted into the empty receptacle 15 in the exemplary embodiments of FIGS. Then, the movable member 14 is moved so that I the recording 15 and thus the new observation window in the observation tube 1 1 is located, ie in the position in which the second receptacle 16 is in Figures 1 -3. The second receptacle 16 is then located outside the area sealed by the sealing elements 15A, 15B, and thus the (polluted) observation window 17 can be removed and, for example, measurements can be continued directly with the new observation window without the vacuum in the vacuum device 1 17 to significantly affect.
- the movable element 14 can be moved manually, but it can also be a corresponding drive, for example an electric motor, be provided for moving the movable member 14.
- a corresponding centering device for example in the pipe extension pieces 13A, 13B, be provided.
- caps 1 1 1A, 1 1 1 B are plugged onto the pipe extensions 13A, 13B and sealed, for example, about seals 1 16A, 1 16B, for example, O-rings or other plastic seals.
- This can increase the tightness of the entire observation device.
- the caps 1 1 1A, 1 1 1 B are removed. Although this can reduce the tightness somewhat during the time of the change of the observation window, the sealing elements 15A, 15B nevertheless still provide a sufficient tightness.
- the caps 1 1 1A, 1 1 1 B can be plugged again.
- screws 1 13A and 1 13B may be provided, which may serve as a spacer to the movable member 14 and / or for fixing the caps 1 1 1A, 1 1 1 B, for example.
- the movable member 14 in the illustrated embodiment has two receptacles 15, 16, may be provided in other embodiments, only a single shot. In this case, however, a change of the observation window takes a little longer, since the (then only) recording must first be moved out of the observation tube, then the observation window must be replaced and then the recording must be moved back into the observation tube. On the other hand, more than two shots can be provided.
- a method for changing an observation window for example for the exemplary embodiment of FIGS.
- a new observation window is turned into an inactive shot, i. a recording not in an observation beam path, for example the observation tube 1 1 of FIG. 1, is used.
- the inactive shot i. a recording not in an observation beam path, for example the observation tube 1 1 of FIG. 1, is used.
- the first shot 15 the inactive shot.
- step 21 the movable element is then moved in such a way that the window used in step 20 is moved into the beam path, for example into the observation tube 1 1 of FIG. 3.
- step 22 the dirty window is then removed.
- the method of Fig. 4 may be adapted to modification of the observer. If, for example, as explained above, only one receptacle is present, to change the window, the movable element is first moved to bring this receptacle to an inactive position outside the beam path, then the soiled window is replaced with a new window (or the soiled window) Window cleaned if necessary), and then the movable element is moved to bring the new or cleaned window back into the beam path.
- caps are provided in a corresponding observation device such as the caps 1 1 1A, 1 1 1 B of Figures 1 -3, these caps are removed at the beginning of the implementation of the method and put back to the end of the implementation of the method.
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Physical Vapour Deposition (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201311004056 DE112013004056A5 (en) | 2012-08-16 | 2013-07-17 | Observation device for a vacuum device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210107497 DE102012107497A1 (en) | 2012-08-16 | 2012-08-16 | Observation device for a vacuum device |
DE102012107497.6 | 2012-08-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014026818A1 true WO2014026818A1 (en) | 2014-02-20 |
Family
ID=48795577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2013/065064 WO2014026818A1 (en) | 2012-08-16 | 2013-07-17 | Observation device for a vacuum device |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE102012107497A1 (en) |
WO (1) | WO2014026818A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016087355A1 (en) * | 2014-12-04 | 2016-06-09 | Universite De Nantes | Device for synthesising and studying compounds under controlled temperatures and pressures |
WO2018011055A1 (en) * | 2016-07-11 | 2018-01-18 | Bayer Aktiengesellschaft | Sight glass cover with integrated cleaning device |
CN112833318A (en) * | 2019-11-22 | 2021-05-25 | 常州松英视液镜有限公司 | Oil difference switch probe with perspective mirror and manufacturing process thereof |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0541913A1 (en) * | 1991-11-14 | 1993-05-19 | Leybold Aktiengesellschaft | Device for observing the course of processes |
DE4222006A1 (en) * | 1992-07-04 | 1994-01-05 | Hpt Konstruktion Und Service H | Pressurised reactor chamber vessel viewing glass mounting for facilitating replacement - has slidable carrier with two apertures respectively for replacement glass and in-use glass located over opening in vessel wall. |
WO1997007051A2 (en) * | 1995-08-11 | 1997-02-27 | Tpa, Inc. | Sealed observation element for sulfur recovery unit |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1773945A1 (en) * | 1968-07-30 | 1972-01-13 | Ruhstrat Geb | Viewing window for closed housings, boilers and enclosed spaces |
JPH03229632A (en) * | 1990-02-05 | 1991-10-11 | Matsushita Electric Ind Co Ltd | Viewing port |
JP2005222980A (en) * | 2004-02-03 | 2005-08-18 | Matsushita Electric Ind Co Ltd | Vacuum treatment apparatus |
-
2012
- 2012-08-16 DE DE201210107497 patent/DE102012107497A1/en not_active Withdrawn
-
2013
- 2013-07-17 WO PCT/EP2013/065064 patent/WO2014026818A1/en active Application Filing
- 2013-07-17 DE DE201311004056 patent/DE112013004056A5/en not_active Ceased
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0541913A1 (en) * | 1991-11-14 | 1993-05-19 | Leybold Aktiengesellschaft | Device for observing the course of processes |
DE4222006A1 (en) * | 1992-07-04 | 1994-01-05 | Hpt Konstruktion Und Service H | Pressurised reactor chamber vessel viewing glass mounting for facilitating replacement - has slidable carrier with two apertures respectively for replacement glass and in-use glass located over opening in vessel wall. |
WO1997007051A2 (en) * | 1995-08-11 | 1997-02-27 | Tpa, Inc. | Sealed observation element for sulfur recovery unit |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016087355A1 (en) * | 2014-12-04 | 2016-06-09 | Universite De Nantes | Device for synthesising and studying compounds under controlled temperatures and pressures |
FR3029428A1 (en) * | 2014-12-04 | 2016-06-10 | Univ Nantes | DEVICE FOR THE SYNTHESIS AND STUDY OF COMPOUNDS UNDER TEMPERATURES AND CONTROLLED PRESSURES |
WO2018011055A1 (en) * | 2016-07-11 | 2018-01-18 | Bayer Aktiengesellschaft | Sight glass cover with integrated cleaning device |
CN112833318A (en) * | 2019-11-22 | 2021-05-25 | 常州松英视液镜有限公司 | Oil difference switch probe with perspective mirror and manufacturing process thereof |
CN112833318B (en) * | 2019-11-22 | 2022-03-18 | 常州松英视液镜有限公司 | Manufacturing process of oil difference switch probe with perspective mirror |
Also Published As
Publication number | Publication date |
---|---|
DE112013004056A5 (en) | 2015-05-07 |
DE102012107497A1 (en) | 2014-02-20 |
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