CN102782743A - Improved lenticular illumination device - Google Patents
Improved lenticular illumination device Download PDFInfo
- Publication number
- CN102782743A CN102782743A CN2011800114948A CN201180011494A CN102782743A CN 102782743 A CN102782743 A CN 102782743A CN 2011800114948 A CN2011800114948 A CN 2011800114948A CN 201180011494 A CN201180011494 A CN 201180011494A CN 102782743 A CN102782743 A CN 102782743A
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- Prior art keywords
- lighting device
- light source
- described lighting
- slit
- lens
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F19/00—Advertising or display means not otherwise provided for
- G09F19/12—Advertising or display means not otherwise provided for using special optical effects
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/036—Light emitting elements
- H01H2219/039—Selective or different modes of illumination
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/054—Optical elements
- H01H2219/058—Optical grid, collimator or microlouver
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/054—Optical elements
- H01H2219/066—Lens
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/18—Distinguishing marks on switches, e.g. for indicating switch location in the dark; Adaptation of switches to receive distinguishing marks
- H01H9/182—Illumination of the symbols or distinguishing marks
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- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Marketing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention relates to an illumination device (1), comprising: at least two light sources (6) or light source arrangements, each switched on in an alternating manner, arranged at a distance from one another; at least one lens arrangement (2) made of a plurality of focusing, preferably semi-convex lenses (3) running perpendicular to the direction of spacing of the light sources (6) or light source arrangements and parallel to one another, being uniform in said running direction; a slit mask (4) arranged on the side of the lens arrangement (2) facing away from the light sources (6) or light source arrangements and in the focal plane of the lenses (3) of the lens arrangement (2), having at least two light passage slits (5) on which light from either the one or the other light source (6) is focused and an imaging layer (11) comprising at least two strip-shaped luminous surfaces (12) to be backlit and associated with each light passage slit (5), each defining a display surface.
Description
Technical field
The present invention relates to a kind of lighting device, in particular for the lighting device of motor vehicle, as required, given luminous or display surface can be backlight or the transillumination formula in the said motor vehicle.
Background technology
As required, in order to change the displaying contents of relevant display surface, and therefore required display surface is tapered to minimum and/or can change the conversion or the regulatory function of operating parts, it is well-known in operating parts, using LCD.The use of LCD; Yet; Brought inconvenience because they are sensitive relatively, its required wiring hinder or or even play up and make that in interchangeable keycap, to use operating parts to become impossible, and the frequent transitions between the displaying contents can have irritating time-delay.
In addition, lens screen paper tinsel or lens paper tinsel are known.Can change image or 3D rendering through this paper tinsel.When observing from different directions, the lens screen modified-image can be described pictures different, for example the different phase of action sequence.The change of direction of observation can be through inclination lens screen modified-image or also can be realized through shielding modified-image through fixed lens.Said lens screen can be made into a dome or array of spherical lenses or column type lens bar shaped array, and when observing from different directions, in conjunction with the center of being total to, bar shaped or other graphic models, can produce the multiple optics effect.One utilizes the lighting device of this optical effect can know from patented claim DE102009023494.2-55 that this patent DE102009023494.2-55 also applies for the applicant's name.In addition, can also referenced patent EP1286200A2.The manufacture process that shows the lens illumination device of multicolored symbol is proved to be unusual difficulty, this multicolored symbol be considered to through, for example, the slit shade shows.Because the short space distance between the optical module must be carried out especially special meticulous developing and printing, it is difficult that the manufacturing of this slit shade is proved to be.
Summary of the invention
In view of above-mentioned prior art, therefore the object of the present invention is to provide a kind of that be convenient to make, have a versatility, especially coloured lens illumination device.
This purpose realizes through the described lighting device of claim.A kind of favourable relatively motor vehicle and housed device are the theme that independent claims are protected.Preferred embodiment is the theme that dependent claims is protected.It is emphasized that the characteristic of quoting individually in the Patent right requirement can combine in any technical meaningful ways, and describe other embodiment of invention.Explain that especially relevant with accompanying drawing explanation has been carried out other description and explanation to the present invention.
Lighting device according to the present invention comprises the light source or the light source arrangement of at least two each intervals, and the light source of said at least two each intervals or light source are arranged respectively and alternately connected, and are preferably by LED and form.According to the present invention; Further be provided with at least one lens arrangement; Said lens arrangement is made up of a plurality of condenser lenses; The septal direction setting that said a plurality of condenser lens is arranged perpendicular to light source or light source (the shortest line direction between promptly arranging) perpendicular to light source or light source, and parallel, and unified on its traffic direction.Notion among the present invention " unified on the traffic direction " is meant that lens keep its xsect that is its optical imagery performance on its traffic direction.Preferably, form semi-convex shape on the lens, more preferably a part of shape of cylinder is preferably half-cylindrical, to reduce the dependence to the visual angle.Each lens of said lens arrangement are usually by translucent, are preferably transparently, but form for coloured made alternatively.
According to the present invention, a slit shade is provided, said slit shade is arranged at a side of the lens arrangement of backlight or light source arrangement, and is positioned at the focal plane of lens arrangement camera lens.According to the present invention, said slit shade comprises at least two optical channel slits, and the light that comes from a light source or an other light source concentrates on respectively on the said optical channel slit.Because the focusing of each lens, said optical channel slit extends on the parallel focal line of lens traffic direction.The geometrical optics capable of using rule that simply forms images in their position is confirmed.Said slit shade does not comprise and shows corresponding image information.According to the present invention, an imaging layer is provided further.It comprises the strip light-emitting area of two backlight types, and said strip light-emitting area is relevant with each optical channel slit, and has defined at least a portion of display surface respectively.For example, a plurality of optical channel slits and light-emitting area are provided for each light source, and it has defined the display surface of each light source, for example symbol on the whole.Therefore, the carrier of all displays image information that said imaging layer is described, for example symbol.Term " layer " implication is extensive.It also can be by a plurality of layers of layer structure of forming.
Said slit shade and/or imaging layer, in its scope perpendicular to optical propagation direction, can be bigger than lens arrangement; Preferably, has much at one size.
In lighting device according to the present invention, rely on the illumination of one of them light source or light source arrangement is selected, and because separated therebetween, light can concentrate on different optical channel slits, and the different optical surfaces of said imaging layer are backlight type.According to the present invention, as its same in LCD, any electricity that the conversion between different the demonstration need not corresponding transillumination layer activates and just can take place smoothly.Said lighting device can be realized compact in size.Produce because said imaging layer is independent of said slit shade, said lighting device is relatively easily made, and especially, shows that the symbol of coloured especially polychrome is realized easily.
Show Color promptly realizes just as the optical channel slit of color filter through coloured, for example, and through having the corresponding colored printing of transparent or translucent colorant.A plurality of differences are painted, but it is monochromatic symbol, and according to preferred embodiment, therefore multicolored symbol also can show respectively.
In order to simplify manufacturing coloured or the colored printing imaging layer, the width of said optical channel slit (width on the direction vertical with traffic direction) is less than the width of said imaging layer strip light-emitting area on corresponding direction.For example, the width of optical channel slit is about 20um, yet the width of said strip light-emitting area is about 80um or bigger.
Said imaging layer is at a distance of being provided with in slit shade certain distance.Preferably, the contiguous said slit shade of imaging layer is provided with.
Preferably, light source is expanded on traffic direction.For example, said light source the size that is had on the traffic direction corresponding to or greater than the size of symbols displayed on all directions.Alternatively, light source is arranged a plurality of light sources be included in adjacent setting on the traffic direction, and if needs are arranged, turned in the time of can be same.Because in the adjacent setting between light source on the traffic direction, perhaps owing to the extension of light source on this direction, the total brightness of lighting device can increase, especially its dependence to viewing angle can be greatly improved.
Other preferred embodiment according to said lighting device provides a scattering layer between lens arrangement and light source, its contiguous said lens arrangement setting, and/or comprise one preferably be parallel to traffic direction the scattering direction.Therefore, the dependence to viewing angle will reduce in by the determined plane of the traffic direction of lens.
Saidly be generally a plane, be curved surface at least in one direction but be preferably by the defined surface of lens arrangement.
According to another preferred embodiment, the adjacent setting of said slit shade with lens arrangement.Therefore obtained one can avoid scattered light tight structure.This slit shade is preferably on the surface back to the lens arrangement of light source and applies manufacturing.For example, said slit shade is applied on the lens arrangement as paper tinsel, above for example being laminated to.
Said optical channel slit can be located in the coating of said lens arrangement through ablation, for example passes through laser ablation.
According to another preferred embodiment, said slit shade generates through printing.
According to another preferred embodiment, said lens arrangement is formed by astrafoil.Therefore manufacture just very cheap according to lighting device of the present invention.This has the paper tinsel of lens arrangement, and especially the single-sided lenses structure is seen feasible from commercial angle.
According to another preferred embodiment, said lens arrangement is formed by the transparent body that generates with injection molding process.Preferably, the mode of said lens arrangement to insert is preferably embossment, places paper tinsel or body surface towards light source.Realize that above-mentioned method can know from patent DE10226301A that said patent is incorporated into hereby.
Lighting device according to the present invention is suitable for light-emitting area is carried out back lighting, for example, and in the function lighting device on interior of motor vehicles or motor vehicle main body, for example in order to realize situation by different show states on the whole defined single surface of light-emitting area.Except that Presentation Function, also be suitable for realizing different lighting conditions according to lighting device of the present invention.For this purpose, an other optical focusing device can be provided, said optical focusing device is positioned at the below of slit shade on the light path, with produce one come from said lighting device light cone, be similar to headlight.
In another preferred embodiment, provide one be arranged at backlight imaging layer a side half pass through scattering layer; For example, its position that is arranged at contiguous slit shade is perhaps separated by a distance with the latter.Alternatively, said imaging layer also can comprise a scattering layer; For example, said printing foil material is translucent.In this example, said printing foil is preferably with its printed side towards the light source setting.Through scattering layer or relevant with it scattering effect, can realize that observer's light-emitting area is no longer had sharp-pointed profile, but a plurality of light-emitting areas can form the surface that seems continuous.But therefore the identification of said symbol or readability can improve.
Preferably, said light source or light source are arranged and are had identical spectra.
In addition, the present invention is relevant with an executive component, and said executive component comprises the lighting device in the above-mentioned preferred embodiment.Preferably, said executive component comprises an interchangeable fitting key, and said at least slit shade and imaging layer are incorporated in the said key.More preferably, said imaging layer links to each other with this key with lens arrangement, and can move with it, and said light source or light source are arranged and fixedly installed with respect to this key.Unexpectedly, according to finding,, also be not enough to the display quality of said lighting device is impacted by the relative displacement between the caused said slit shade of common keystroke and lens arrangement and the light source although the size of lighting device is little.
In addition, the present invention is relevant with the motor vehicle of the lighting device that comprises one of above-mentioned preferred embodiment, and perhaps it obtains using in motor vehicle.
The present invention is further relevant with the electrical Household appliance of the lighting device that comprises one of above-mentioned preferred embodiment, and perhaps it obtains using in electrical Household appliance.
Description of drawings
With reference to accompanying drawing, the present invention and technological accumulation and inheritance can be elaborated hereinafter.It should be noted that the special preferred embodiments of the present invention have been disclosed for illustrative of accompanying drawing, but the latter is not limited to its preferred embodiment.Accompanying drawing has shown:
Fig. 1 has shown the principle cut-open view according to a lighting device in the embodiments of the invention 1;
Fig. 2 has shown the perspective and the principle schematic of lens arrangement 2 raypaths among Fig. 1;
Fig. 3 has shown according to the present invention the schematic top plan view of the typical slit shade 4 of lighting device 1;
Fig. 4 has shown according to the present invention the schematic top plan view of the typical imaging layer 11 of lighting device 1.
Embodiment
Shown it according to the embodiment 1 of lighting device 1 as shown in fig. 1 of the present invention and be used on relevant display surface, showing the purposes of distinct symbols, said display surface can be integrated in the key 9 of executive component.Lighting device 1 comprises two alternative light sources of connecting 6 (6a, 6b), and two light sources are sheltered mechanism 10 through one and avoided irradiation each other, to avoid the light scattering on other light source 6 separately, especially under luminous nondirectional situation.The illumination of these light sources is mapped on the bluff body of the transparent plastic material that defines lens arrangement 2; The surface of lens arrangement 2 is towards light source 6, and lens arrangement 2 comprises cylindraceous, is half-terete lens 2 almost in this example; Its level is stretched out; Promptly stretch out with plan, said plan comes out the back carve in body, for example through the embossing procedure of processing in the body injection moulding perpendicularly.Said lens 3 are configured to separately light focusing in the surface of the lens arrangement 2 of said backlight 6.Because the interval between the light source 6, itself and said lens traffic direction are perpendicular, and the light of each lens focuses on the lens arrangement 2 lip-deep conjugation spacing focal lines 7 away from light source.These lines 7 are marked by corresponding square among Fig. 1.The surface of lens arrangement is printed with slit shade 4; Said slit shade 4 comprises the optical channel slit 5 of a plurality of isolation; Said optical channel slit 5 does not comprise image information; For each lens, will provide and the corresponding some identical optical channel slits of said quantity of light source like this, the position of said some identical optical channel slits is corresponding with focal line 7.In this example, as shown in the figure, one of them described optical channel slit respectively, is provided with in the following manner, and the light that promptly only allows to focus on the light source 6a on the focal line passes through.The optical channel slit that other are contiguous is provided with in the following manner, and the light that promptly only allows to focus on the light source 6b on the focal line passes through.Slit shade 4 is specifically as shown in Figure 3.Through slit shade 4 light is disappeared respectively, illuminates an imaging layer 11 thus from behind,, said imaging layer 11 is specifically as shown in Figure 4.The latter forms through the translucent paper tinsel 13 of dispersivity that printed layers 14 is provided.Translucent strip light-emitting area 12 forms through being printed on the paper tinsel, and in order to show, it is set to corresponding with corresponding optical channel slit 5, depends on the selection to light source 6, and when observing key, therefore a special symbol can be formed by light-emitting area 12a or 12b integral body.In order to show or to observe, said key 9 is configured at least transparent or semitransparent with the adjacent part of imaging layer 11.The dispersivity base material of imaging layer 11 helps to reduce the sharp keen of said optical channel slit 5 borders, and helps to bring the optical illusion of the continuous light-emitting area of representing symbol, but finally improves the identification of symbol separately.
Fig. 2 has explained the opticpath of lens arrangement 2.The light 15 that leaves light source shines the surperficial 2a of the lens arrangement 2 that is coated with the cylindric lens that laterally arrange, so that focus on the single line on the relative plane 2b that is positioned at lens focal plane, for the sake of clarity, said line is reduced into a point in the drawings.According to the present invention, through the slit shade, have at optical flat under the situation of the light source that Different Light arranges with respect to lens, because the geometrical optics rule has produced the focal line of keeping apart accordingly, it shows selectively and with the mode that limits.One typical slit shade 4 is as shown in Figure 3.Said optical channel slit 5 is provided with in the following manner, and promptly they are through the focal line transillumination of light source 6a or 6b.Imaging layer 11 with light-emitting area 12 is as shown in Figure 4.It is provided with and selection of configuration is following mode, and promptly light-emitting area 12a representes symbol " A ", and light-emitting area 12b representes symbol " B ".The selection of said symbol " A " and " B " only is exemplary, and the present invention is not limited to this.What it will be apparent to those skilled in the art is, lighting device according to the present invention is suitable for showing almost any symbol and pattern, and said symbol and pattern can be rebuild according to effect of Combination through the transparent slits of prolongation.
Claims (21)
1. a lighting device (1) comprising:
At least two light sources that separate (6) or light source are arranged, and said light source that separates (6) or light source are arranged respectively and alternately connected;
The lens arrangement (2) that at least one is made up of some focusing, semi-convex lens (3); Said lens (3) are set to vertical with the septal direction of light source (6) or light source arrangement; And parallel each other, said lens (3) are consistent on its traffic direction;
One slit shade (4); Said slit shade (4) is arranged at a side of the lens arrangement (2) of backlight (6) or light source arrangement; And be positioned at the focal plane of the lens (3) of said lens arrangement (2), and said slit shade (4) comprises at least two optical channel slits (5), the light that comes from one of them or another light source (6) focuses on respectively on the said optical channel slit (5); An and imaging layer (11); Said imaging layer (11) comprises the backlight type light-emitting area (12) of at least two strips, and said light-emitting area (12) is relevant with optical channel slit (5) separately, and has defined a display surface respectively.
2. lighting device according to claim 1 (1), optical channel slit (5) width of wherein said slit shade (4) is less than strip light-emitting area (12) width of imaging layer (11).
3. according to the described lighting device of above-mentioned arbitrary claim (1), wherein said imaging layer (11) is set to and slit shade interval one determining deviation.
4. according to the described lighting device of above-mentioned arbitrary claim (1); Wherein light source (6) is expanded on traffic direction; Perhaps said light source is arranged and is comprised some light sources (6), and said some light sources (6) are adjacent on traffic direction, and can connect simultaneously as required.
5. according to the described lighting device of above-mentioned arbitrary claim (1), wherein said imaging layer (11) is printing and transparent or is translucent paper tinsel at least.
6. according to the described lighting device of above-mentioned arbitrary claim (1), wherein said imaging layer (11) includes coloured light passage slit (5).
7. according to the described lighting device of above-mentioned arbitrary claim (1), comprise the optical channel slit (5) of at least two different colours.
8. according to the described lighting device of above-mentioned arbitrary claim (1), the surface of wherein being defined by lens arrangement (2) is crooked at least in one direction.
9. according to the described lighting device of above-mentioned arbitrary claim (1), comprise the mechanism (10) of alternately sheltering light source (6) or light source arrangement.
10. according to the described lighting device of above-mentioned arbitrary claim (1), it is adjacent with lens arrangement (2) that wherein said slit shade (4) is set to.
11. according to the described lighting device of above-mentioned arbitrary claim (1), it is characterized in that: said slit shade (4) applies generation through lens arrangement (2) surface in backlight.
12. according to the described lighting device of above-mentioned arbitrary claim (1), wherein said slit shade (4) generates through printing.
13. according to the described lighting device of above-mentioned arbitrary claim (1), wherein said lens arrangement is formed by astrafoil.
14. according to the described lighting device of above-mentioned arbitrary claim (1), wherein said lens arrangement (2) is formed by the transparent body that generates with Shooting Technique.
15. according to each described lighting device (1) in aforementioned two claims, wherein said lens (3) are inserted into towards the paper tinsel or the body surface of light source (6).
16. according to the described lighting device of aforementioned claim (1), wherein said lens (3) are that embossment comes out.
17. according to the described lighting device of above-mentioned arbitrary claim (1), wherein translucent scattering layer is arranged at a side of the imaging layer (11) of backlight (6), perhaps said imaging layer (11) comprises a scattering layer (13).
18. an executive component, it comprises according to the described lighting device of above-mentioned arbitrary claim (1).
19. an executive component, it comprises the key (9) of a replaceable installation, and said at least slit shade (4) is integrated in the said key (9).
20. a motor vehicle, it comprises according to the described lighting device of arbitrary claim (1) among the claim 1-15.
21. household electrical appliance, it comprises according to the described lighting device of arbitrary claim (1) among the claim 1-15.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010031192.8A DE102010031192B4 (en) | 2010-07-09 | 2010-07-09 | Lenticular lighting device and control element |
| DE102010031192.8 | 2010-07-09 | ||
| PCT/EP2011/061197 WO2012004216A1 (en) | 2010-07-09 | 2011-07-04 | Improved lenticular illumination device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102782743A true CN102782743A (en) | 2012-11-14 |
| CN102782743B CN102782743B (en) | 2015-11-25 |
Family
ID=44509227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180011494.8A Active CN102782743B (en) | 2010-07-09 | 2011-07-04 | Modified lenticular illumination device |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN102782743B (en) |
| DE (1) | DE102010031192B4 (en) |
| WO (1) | WO2012004216A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107002975A (en) * | 2014-11-06 | 2017-08-01 | 利萨·德雷克塞迈尔有限责任公司 | Illuminator |
| CN108139061A (en) * | 2015-10-23 | 2018-06-08 | Zkw集团有限责任公司 | For the micro projection optical module for light distribution of the generation without image error of motor-driven vehicle headlight adapter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102014102322A1 (en) * | 2014-02-24 | 2015-08-27 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Arrangement for generating light effects |
| DE102016104708B4 (en) | 2015-11-06 | 2022-09-22 | Preh Gmbh | Display device with backlit multiple symbols |
| DE102016010383B4 (en) | 2016-08-30 | 2019-02-21 | Preh Gmbh | Method for producing a lenticular sheet layer construction |
| DE102018203598A1 (en) * | 2018-03-09 | 2019-09-12 | BSH Hausgeräte GmbH | Household appliance with a display device |
| DE102019215458B4 (en) * | 2019-10-09 | 2023-11-02 | BSH Hausgeräte GmbH | Display device for a household appliance, household appliance with a display device and manufacturing method for a display device |
| CN112462531A (en) * | 2020-04-20 | 2021-03-09 | 华域视觉科技(上海)有限公司 | Illumination module, car light, vehicle accessory equipment and vehicle of three-dimensional suspension formation of image |
| DE102021116638B4 (en) | 2021-06-28 | 2023-05-04 | Datronik Laser & Automation Solutions GmbH & Co. KG | Method and device for processing an optical component for a lighting device of a vehicle |
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- 2011-07-04 WO PCT/EP2011/061197 patent/WO2012004216A1/en active Application Filing
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| JPH1173150A (en) * | 1997-08-28 | 1999-03-16 | Nippon Seiki Co Ltd | Display device |
| EP1758140A1 (en) * | 2005-07-26 | 2007-02-28 | Sony Ericsson Mobile Communications AB | Arrangement for generating dual images |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107002975A (en) * | 2014-11-06 | 2017-08-01 | 利萨·德雷克塞迈尔有限责任公司 | Illuminator |
| CN107002975B (en) * | 2014-11-06 | 2020-08-21 | 利萨·德雷克塞迈尔有限责任公司 | Lighting system |
| CN108139061A (en) * | 2015-10-23 | 2018-06-08 | Zkw集团有限责任公司 | For the micro projection optical module for light distribution of the generation without image error of motor-driven vehicle headlight adapter |
| CN108139061B (en) * | 2015-10-23 | 2020-07-10 | Zkw集团有限责任公司 | Miniature projection light module for a motor vehicle headlight for generating an image-error-free light distribution |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102010031192B4 (en) | 2022-01-20 |
| WO2012004216A1 (en) | 2012-01-12 |
| DE102010031192A1 (en) | 2012-01-12 |
| CN102782743B (en) | 2015-11-25 |
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