WO2005116722A1 - 画像表示装置 - Google Patents
画像表示装置 Download PDFInfo
- Publication number
- WO2005116722A1 WO2005116722A1 PCT/JP2005/009452 JP2005009452W WO2005116722A1 WO 2005116722 A1 WO2005116722 A1 WO 2005116722A1 JP 2005009452 W JP2005009452 W JP 2005009452W WO 2005116722 A1 WO2005116722 A1 WO 2005116722A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- point light
- light source
- image display
- distance
- image
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/02—Viewing or reading apparatus
- G02B27/022—Viewing apparatus
- G02B27/024—Viewing apparatus comprising a light source, e.g. for viewing photographic slides, X-ray transparancies
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0093—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking
Definitions
- the present invention relates to an image display device, and more particularly, to an image display device that projects an image appearing on a transmission type image display plate.
- Image display devices are widely used in personal computers, home televisions, mobile phones, game machines, and the like, and various types of images having high resolution have been proposed. In order to view the images displayed with these tools, it is necessary to correct them by a considerable number of people today. In addition, small characters become difficult to see due to aging. Thus, the sharpness of the image depends on the eyesight of the observer. In addition, tiredness is increased by watching the screen for a long time. Visual acuity decreases. On the other hand, in an image display device, light emitted from a point light source is condensed on a pupil of an observer by a lens, and an image is directly projected on a retina. Some are made to be recognized by observers.
- Patent Document 1 discloses a method in which the position of the observer's pupil is detected and analyzed by a camera or the like in order to match the position of the observer's pupil with the image forming position of the point light source, and the position of the point-like light source is determined.
- a technique has been disclosed in which the point light source is moved so that the image forming position of the point light source always matches the pupil of the observer by following the observer.
- Patent Document 1 JP-A-2002-318365
- Patent Document 1 requires a means for specifying the position of the observer's pupil and changing the point-like light emission position, which is complicated.
- the present invention has been made in view of the above circumstances, and has as its object to provide an image display device which has a simple configuration and is capable of displaying a sharp image with high sharpness following the movement of an observer.
- Means for solving the problem [0006]
- the invention according to claim 1 is an image display device provided with an imaging member that forms an image of a point light source at a predetermined position, as means for projecting an image displayed on the transmission type image display plate.
- a point light source array in which a large number of the point light sources are dispersedly arranged in a plane direction to form an array; and the ratio of the distance between the adjacent point light sources to the distance to the imaging member is also determined by the point light array force.
- the image member force is set to be substantially equal to the ratio of the human pupil diameter to the distance to the predetermined position.
- FIGS. 1 and 2 respectively show the concept of the invention according to claim 1, in which the point light sources 120 of the point light source array 12 form images at predetermined positions F0 to F6 by the imaging members 13, 13A.
- the predetermined positions FO to F6 are located on a virtual surface facing the image display device, but are dispersed in large numbers according to the number of the point light sources 120.
- the above-mentioned figure shows a case where the observer faces the image display device of the present invention such that the pupil of the observer's eyeball 2 comes to the predetermined position FO among the predetermined positions F0 to F6 which are strong.
- the light from the point light source 120 enters the crystalline lens 21 from the pupil of the eyeball 2, and the display image D of the transmission type image display panel 11 is projected on the retina 22. Since a point light source 120 substantially condenses one point of light at the position of the crystalline lens 21 of the eyeball 2, the resolution of the projected image I on the retina 22 does not depend on the imaging ability of the crystalline lens 21. Therefore, the sharpness is high. In addition, since the tension of the ciliary body is reduced, there is little feeling of fatigue even after long hours of staring.
- the ratio of the distance between the adjacent point light sources 120 to the distance from the point light source array 12 to the imaging members 13 and 13A Force of the person on the distance from the imaging members 13 and 13A to the predetermined position FO It should be equal to the ratio of the pupil diameter.
- the distance between the images of the adjacent point light sources 120 that form an image at the predetermined position FO becomes equal to the pupil diameter, so that the image forming members 13 and 13A that independently perform the image forming operation are formed.
- 130 only one of the point light sources 120 simultaneously forms an image at the position of the observer's pupil. Therefore, the display image D does not appear multiple times to the observer.
- the point light sources 120 that form an image with the observer's pupil sequentially move to the adjacent point light sources 120.
- the observable position force is not fixed to one point, and the displayed image is There is no observing position, the range visible to the observer is continuous, and there is no discomfort. In this manner, an operation substantially equivalent to the movement of the point light source following the movement of the observer so that the point light source forms an image on the pupil of the observer can be achieved.
- the imaging member is formed in an array.
- FIG. 2 shows the concept of the invention according to claim 2.
- the imaging member 13 has a single element that performs an independent imaging operation, whereas the imaging member 13A in FIG. Are arranged in an array. Thereby, the same operation as the operation of the invention according to claim 1 is achieved, and the thickness of the imaging member 13A is reduced, so that the entire image display device can be compacted.
- a driving unit for driving the point light source array or the image forming member is provided, and the point light source array and the image forming member are provided. The distance to can be adjusted.
- the image forming position of the point light source can be moved away from or closer to the image display device. Thereby, the degree of freedom of the position suitable for observation can be increased in the front-back direction.
- the point light source array is configured by a light source that can be switched on and off for each point light source, and substantially partly.
- the distance between the adjacent point light sources can be adjusted by thinning out the point light sources.
- the point light source array force also changes relative to the distance to the imaging member so that the ratio becomes equal to the ratio.
- the ratio of the distance between the point light sources can be changed.
- FIG. 3 shows an image display device according to a first embodiment of the present invention.
- the image display device includes a multi-lens 5 as an imaging member, a liquid crystal display panel 3 as a transmission type image display panel, and a point light source array. 4 is provided.
- the point light source array 4 includes a screen 42 having a predetermined pattern formed of a light source light shielding part and a light source transmission part formed on a base material on the viewer side of a backlight 41 used in a general liquid crystal display device.
- the point light source 401 is emitted toward the observer 6.
- the multi-lens 5 is provided on the side of the point light source 401 of the liquid crystal display panel 3, and condenses the light emitted from the point light source array 4 at the position of the pupil of the observer 6, and connects the point light source 401 at the position of the pupil. Image.
- the liquid crystal display panel 3 projects an image on the retina of the observer 6 using the point light source 401 as a backlight.
- the screen 42 and the point light source 401 will be described later.
- the multi-lens 5 for example, a multi-Fresnel lens in which Fresnel lenses, which are imaging elements that independently form an image, are provided in an array is used. As a result, the lens thickness becomes thinner, and the entire device can be made thinner and smaller. Further, the multi-lens 5 may be a convex lens array in which convex lenses are provided in an array. In FIG. 3 described above, the force of drawing the multi-lens 5 like a convex lens array is not limited to this. The same applies to the following embodiments.
- liquid crystal display plate 3 a liquid crystal display plate of a general liquid crystal display device, such as a polarizing plate, a glass substrate having a transparent electrode, or a liquid crystal material, can be used.
- FIG. 4A is a view taken in the direction of the arrow IV in FIG. 3, and shows the point light source array 4 viewed from the multi-lens 5 side.
- the screen 42 may be attached to the observer side surface of the backlight 41 via an adhesive or the like, and the pattern of the screen 42 may be formed by a printing method or the like.
- the pattern is formed by forming innumerable minute hole patterns 421 as light source transmitting portions in a lattice pattern on a black background as the light source light shielding portion.
- FIG. 4B shows a part of a specific pattern, and the hole patterns 421 are positioned in such a manner that the intervals between the adjacent hole patterns 421 are equal. Accordingly, the point light source array 4 has a large number of point light sources 401 dispersedly arranged on a plane, and the interval between adjacent point light sources 401 is constant.
- the ratio of the distance between the adjacent point light sources 401 to the distance from the point light source array 4 to the multi-lens 5 is equal to the ratio of the human pupil diameter to the distance from the multi-lens 5 to the observer 6.
- FIG. 5 shows an image display device according to a second embodiment of the present invention.
- the present embodiment is applied to an image display device for a portable telephone.
- the multi-lens 5A and the point light source array 4A are arranged behind the liquid crystal display panel 3A from the liquid crystal display panel 3A side.
- the multi-lens 5A is preferably a thin multi-lens lens in consideration of portability and operability of a mobile phone.
- FIG. 6 shows the point light source array 4A.
- the point light source array 4A is a so-called organic EL element.
- the metal electrode layer 44 and the transparent electrode layer 4 sandwich the organic light emitting layer 43 on the surface of the glass substrate.
- the metal electrode layer 44 and the transparent electrode layer 45 are each formed in a narrow band shape, and a large number of them are arranged in the width direction at a predetermined pitch.
- the metal electrode layer 44 and the transparent electrode layer 45 extend in the orthogonal direction and form a matrix wiring.
- a light emitting portion appears on the light emitting layer 43 at a position where the metal electrode layer 44 and the transparent electrode layer 45 intersect, and a number of point light sources 401A are formed at lattice positions. Is done. Therefore, it can be said that the point light source array 4A in the present embodiment also has a large number of point light sources dispersedly arranged on a plane similarly to the first embodiment.
- the distance between the adjacent point light sources 401A is defined by the pitch between the metal electrode layer 44 and the transparent electrode layer 45.
- the distance between the multi-lens 5A and the observer 6 is 300 mm. This is a clear vision distance.
- the distance between the point light source array 4A and the multi-lens 5A is 8 mm in consideration of portability and operability of the mobile phone.
- the ratio of the distance between the adjacent point light sources 401A to the distance from the point light source array 4A to the multi-lens 5A is the ratio of the human pupil diameter to the distance to the multi-lens 5A force observer 6.
- FIG. 7 shows an image display device according to the present embodiment.
- An actuator 7 which is a driving means that expands and contracts in the direction in which the multi-lens 5A faces the point light source array 4A, is provided, and the distance between the multi-lens 5A and the point light source array 4A can be adjusted.
- the actuator 7 may be configured by a piezo stack in which the amount of expansion and contraction changes by piezoelectric action according to the charged amount.
- the point light source array 4A only the point light source 401A at a predetermined position can be turned on by the drive circuit 83, and the point light source 401A can be substantially thinned out. Thinning is performed by setting the point light source 401A to be turned on and the point light source 401A to be turned off so that the point light sources 401A are arranged at equal intervals in the vertical and horizontal directions. Make sure that 401 A is uniform in the plane. In this case, it goes without saying that the point light source array 4A can adopt any of a passive matrix system and an active matrix system.
- the powerful actuator 7 and the point light source array 4A are controlled by the control unit 81.
- the control unit 81 outputs a control signal to the drive circuit 82 of the actuator 7 and outputs a control signal to the drive circuit 83 of the point light source array 4A, thereby simultaneously connecting the multi-lens 5A and the point light source array 4A. Adjusting the spacing and adjusting the spacing between adjacent point light sources 401A in the point light source array 4A Adjustments are made simultaneously.
- a CCD camera 84 is arranged in the vicinity of the liquid crystal display panel 3A so as to face the observer, similarly to the liquid crystal display panel 3A, and is configured to photograph the observer operating the mobile phone.
- the output signal of the CCD camera 84 is input to the control unit 81, and the distance from the mobile phone to the observer, that is, the distance between the multi-lens 5A and the observer is known based on the observer image.
- the actuator 7 is controlled such that the closer the observer is to the image display device, that is, to the multi-lens 5A, the wider the distance between the multi-lens 5A and the point light source array 4A.
- the point light source array 4A is controlled so that the point light source 401A of the point light source array 4A is interposed. According to the distance between the point light sources 401A, the density of the point light sources 401A becomes low, and the interval between the adjacent point light sources 401A becomes wide.
- the liquid crystal display panel 3 follows the observer so that the point light source forms an image with the observer's pupil. If the displayed image is not a double image, the density of the point light source is adjusted so as to be denser in the range, so that the observable range of the observer in the front and rear direction is expanded, and further use, arbitrariness, etc. become.
- FIG. 8 shows an image display device according to a fourth embodiment of the present invention.
- the imaging member is a tandem lens 5B including a large-diameter lens 5a and a multi-lens 5b, and the large-diameter lens 5a is disposed on the liquid crystal display panel 3 side.
- the multi-lens 5b is arranged on the point light source array 4 side.
- the focal length of the large-aperture lens 5a is fl and the focal length of the multi-lens 5b is f2, and the distance between the multi-lens 5b and the point light source array 4 is set to f2, the distance fl from the large-aperture lens 5a This is the imaging position of the point light source 401 of the point light source array 4 (see FIG. 4B).
- the imaging member that forms an image of the point light source may be a combination of a plurality of lenses.
- the large-aperture lens 5a is located on the multi-lens 5b side of the liquid crystal display panel 3, but the large-aperture lens 5a is located on the opposite side of the multi-lens 5b across the liquid crystal display panel 3. Is also good.
- a single large-diameter lens may be used.
- a reflection type imaging member such as a concave mirror or a Fresnel concave mirror which is not limited to the refraction type imaging member may be used.
- a diffraction type imaging member represented by a hologram may be used.
- the present invention can be applied to an image display device that displays not only a planar image but also a stereoscopic image, as long as a transmission type image display plate is used as a means for projecting an image.
- the present invention relates to an X-ray film, which is a transmission-type image display panel, such as a personal computer or a mobile phone, in which a transmission-type image display panel is not limited to one that is previously incorporated in the apparatus. Can be applied to the set each time.
- the ratio of the distance between adjacent point light sources to the distance between the point light source array force and the imaging member is determined by the ratio of the distance between the imaging member force and the point light source to the imaging position. It is a requirement of the invention that the ratio be set equal to the diameter ratio.
- the ratio of the distance between adjacent point light sources to the distance to the imaging member is also greater than the ratio of the human pupil diameter to the distance from the imaging member to the imaging position of the point light source. If the ratio is too large, it is possible to prevent the display image from being double-viewed to the observer. Therefore, the above “equal” means that the display image is visually recognized not only when both ratios have exactly the same value.
- the ratio of the distance between adjacent point light sources to the distance to the imaging member depends on the imaging member power. This also includes the case where the ratio is larger than the ratio of the human pupil diameter to the distance to the imaging position of the light source.
- FIG. 1 is a first conceptual diagram of an image display device of the present invention.
- FIG. 2 is a second conceptual diagram of the image display device of the present invention.
- FIG. 3 is a view showing a side surface of a main part of the image display device according to the first embodiment of the present invention.
- FIG. 4 (A) is a view on arrow IV in FIG. 3, and (B) is an enlarged view of a part thereof.
- FIG. 5 is a view showing a side surface of a main part of an image display device according to a second embodiment of the present invention.
- FIG. 6 is a perspective view of members constituting the image display device.
- FIG. 7 is a view showing a side surface and an electric configuration of a main part of an image display device according to a third embodiment of the present invention.
- FIG. 8 is a view showing a side surface of a main part of an image display device according to a fourth embodiment of the present invention. Explanation of symbols
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
Description
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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JP2006513888A JPWO2005116722A1 (ja) | 2004-05-28 | 2005-05-24 | 画像表示装置 |
US11/596,216 US20070222954A1 (en) | 2004-05-28 | 2005-05-24 | Image Display Unit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004158497 | 2004-05-28 | ||
JP2004-158497 | 2004-05-28 |
Publications (1)
Publication Number | Publication Date |
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WO2005116722A1 true WO2005116722A1 (ja) | 2005-12-08 |
Family
ID=35451014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/009452 WO2005116722A1 (ja) | 2004-05-28 | 2005-05-24 | 画像表示装置 |
Country Status (4)
Country | Link |
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US (1) | US20070222954A1 (ja) |
JP (1) | JPWO2005116722A1 (ja) |
TW (1) | TW200609532A (ja) |
WO (1) | WO2005116722A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011191595A (ja) * | 2010-03-16 | 2011-09-29 | Olympus Corp | 表示装置、表示ユニット、電子機器、携帯電話、及び撮像装置 |
WO2012137532A1 (ja) * | 2011-04-04 | 2012-10-11 | オリンパス株式会社 | 表示装置、その表示装置を備えた電子機器、及び投影ユニット |
JP2015521298A (ja) * | 2012-04-25 | 2015-07-27 | マイクロソフト コーポレーション | ヘッドマウントディスプレイに用いるための可動式ledアレイ及びマイクロレンズアレイに基づくライトフィールドプロジェクタ |
Families Citing this family (7)
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US9407907B2 (en) | 2011-05-13 | 2016-08-02 | Écrans Polaires Inc./Polar Screens Inc. | Method and display for concurrently displaying a first image and a second image |
US8970794B2 (en) * | 2012-02-15 | 2015-03-03 | Mario Signore | Portable video enhancement apparatus |
US9967546B2 (en) | 2013-10-29 | 2018-05-08 | Vefxi Corporation | Method and apparatus for converting 2D-images and videos to 3D for consumer, commercial and professional applications |
US20150116458A1 (en) | 2013-10-30 | 2015-04-30 | Barkatech Consulting, LLC | Method and apparatus for generating enhanced 3d-effects for real-time and offline appplications |
TWI490545B (zh) * | 2014-01-20 | 2015-07-01 | Nat Univ Chung Hsing | Pupil imaging method and device thereof |
US10158847B2 (en) | 2014-06-19 | 2018-12-18 | Vefxi Corporation | Real—time stereo 3D and autostereoscopic 3D video and image editing |
WO2021243037A1 (en) | 2020-05-27 | 2021-12-02 | Looking Glass Factory, Inc. | System and method for holographic displays |
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JP2002277822A (ja) * | 2001-03-21 | 2002-09-25 | Japan Science & Technology Corp | 網膜投影表示方法及びそのための装置 |
JP2002318365A (ja) * | 2001-04-20 | 2002-10-31 | Sanyo Electric Co Ltd | 網膜投影型ディスプレイ |
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GB8716369D0 (en) * | 1987-07-10 | 1987-08-19 | Travis A R L | Three-dimensional display device |
GB2267579A (en) * | 1992-05-15 | 1993-12-08 | Sharp Kk | Optical device comprising facing lenticular or parallax screens of different pitch |
GB2272555A (en) * | 1992-11-11 | 1994-05-18 | Sharp Kk | Stereoscopic display using a light modulator |
US5993003A (en) * | 1997-03-27 | 1999-11-30 | Litton Systems, Inc. | Autostereo projection system |
GB9916715D0 (en) * | 1999-07-19 | 1999-09-15 | Secr Defence | Compound lens arrangement for use in lens arrays |
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- 2005-05-24 WO PCT/JP2005/009452 patent/WO2005116722A1/ja active Application Filing
- 2005-05-24 US US11/596,216 patent/US20070222954A1/en not_active Abandoned
- 2005-05-24 JP JP2006513888A patent/JPWO2005116722A1/ja active Pending
- 2005-05-26 TW TW094117168A patent/TW200609532A/zh unknown
Patent Citations (2)
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JP2002277822A (ja) * | 2001-03-21 | 2002-09-25 | Japan Science & Technology Corp | 網膜投影表示方法及びそのための装置 |
JP2002318365A (ja) * | 2001-04-20 | 2002-10-31 | Sanyo Electric Co Ltd | 網膜投影型ディスプレイ |
Non-Patent Citations (1)
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011191595A (ja) * | 2010-03-16 | 2011-09-29 | Olympus Corp | 表示装置、表示ユニット、電子機器、携帯電話、及び撮像装置 |
WO2012137532A1 (ja) * | 2011-04-04 | 2012-10-11 | オリンパス株式会社 | 表示装置、その表示装置を備えた電子機器、及び投影ユニット |
JP5330623B2 (ja) * | 2011-04-04 | 2013-10-30 | オリンパス株式会社 | 表示装置、その表示装置を備えた電子機器、及び投影ユニット |
JP2015521298A (ja) * | 2012-04-25 | 2015-07-27 | マイクロソフト コーポレーション | ヘッドマウントディスプレイに用いるための可動式ledアレイ及びマイクロレンズアレイに基づくライトフィールドプロジェクタ |
Also Published As
Publication number | Publication date |
---|---|
JPWO2005116722A1 (ja) | 2008-04-03 |
US20070222954A1 (en) | 2007-09-27 |
TW200609532A (en) | 2006-03-16 |
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