Abstract:
Die Erfindung betrifft ein Sicherheitselement (20) für Sicherheitspapiere, Wertdokumente und dergleichen, mit einer mikrooptischen Moire- Vergrößerungsanordnung mit einem Motivbild, das aus einer planaren oder auf gekrümmter Fläche aufgebrachten periodischen oder zumindest lokal periodischen Anordnung einer Mehrzahl von Mikromotivelementen (28) besteht, und einer planaren oder auf gekrümmter Fläche aufgebrachten periodischen oder zumindest lokal periodischen Anordnung einer Mehrzahl von Mikrofokussierelementen (24) zur Moire-vergrößerten Betrachtung der Mikromotivelemente (28) des Motivbilds, wobei die Anordnung von Mikromotivelementen (28) und/ oder die Anordnung von Mikrofokussierelementen (24) im planaren Fall in ihren periodischen oder zumindest lokal periodischen Bereichen keine Symmetrieachse in der Ebene der Anordnung aufweist.
Abstract translation:
本发明涉及的安全元件(20),用于导航使用ř安全纸,有价文件等中,与微光学莫尔放大Ö道路erungsanordnung具有平面的设计图像或冠导航用途mmter FLÄ 澈施加周期性的或多个微动机元件(28)中的至少局部地周期性排列,和一个平面的或冠导航用途mmter FL BEAR施加多个缩微(24)的车周期性或至少局部地周期性布置为云纹放大&oUML;道路Erten 观看图形图像的缩微图形元件(28),其中微动机元件在其定期或至少局部周期性区域没有在组件的平面对称轴的平面的情况下所述阵列(28)和/或缩微(24)的布置。 p >
Abstract:
Die Erfindung betrifft ein Verfahren zum Herstellen von optischen Linsen, insbesondere zur Betrachtung eines Lentikularbildes, aus einem formbaren transparenten Material. Sie ist dadurch gekennzeichnet, dass die Linsenschichten (7, 71 , 72, 73, 74, 75, 76, 77; 10, 11 , 12, 13) bzw. die Linsenkörper (8) durch ein Material auftragendes Verfahren, wie Aufdrucken oder Aufspritzen des Materials, auf einem Substrat (1) erzeugt werden, wobei die Linsen durch mehrere nacheinander aufgebrachte Material-Schichten oder -Teilbereiche erzeugt werden. Die Erfindung betrifft ferner ein Verfahren zum Herstellen eines Lentikularbildes, ein Verfahren zur Herstellung von Blindenschrift, nach diesen Verfahren erzeugte Lentikularbilder oder Dokumente, die Verwendung eines der Verfahren zum Herstellen bestimmter Produkte und eine Druckmaschine zur Anwendung eines dieser Verfahren oder zur Herstellung eines dieser Produkte.
Abstract:
The present invention provides a method for manufacturing hybrid microlenses of a light guiding plate using a semiconductor reflow process, comprising: a first step of aligning a mask on a substrate coated with a photoresist, wherein the mask is formed with a first region through which light can be transmitted and a plurality of second regions through which light cannot be transmitted, and the second regions have different sizes and shapes to form hybrid arrays; a second step of performing slant light exposure and vertical light exposure at least once in such a manner that light radiated from the top to the bottom of the second regions forming the hybrid arrays has an unsymmetrical inclination angle in at least one direction; a third step of developing the slant light-exposed substrate to obtain hybrid photoresist posts with various sizes and shapes; a fourth step of performing a reflow process to allow the hybrid photoresist posts to be curved so that a hybrid microlens pattern can be obtained; a fifth step of fabricating a depressed stamper with the hybrid microlens pattern engraved in a depressed fashion therein; and a sixth step of forming a light guiding plate by using the depressed stamper as a mold so that the hybrid microlens pattern can be formed in a raised pattern in the light guiding plate.
Abstract:
A film material utilizing a regular two-dimensional array of non-cylindrical lenses to enlarge micro-images, called icons, to form a synthetically magnified image through the united performance of a multiplicity of individual lens/icon image systems. The synthetic magnification micro-optic system includes one or more optical spacers (5), a micro-image formed of a periodic planar array of a plurality of image icons (4) having an axis of symmetry about at least one of its planar axes and positioned on or next to the optical spacer (5), and a periodic planar array of image icon focusing elements (1) having an axis of symmetry about at least one of its planar axes, the axis of symmetry being thesame planar axis as that of the micro-image planar array (4). A number of distinctive visual effects, such as three-dimensional and motion effects, can be provided by the present system.
Abstract:
A light-transmission screen includes a diffusing element formed from a micro-lens array for projecting images in a viewing space. The screen generates images of improved quality by varying structural features of one or more lenses in the array so that light is directed in different directions and/or with different optical properties compared with other lenses in the array. The structural features which are varied include any one or more of size, shape, curvature, or spacing of the lenses in the array. As a result of these variations, the screen achieves wider viewing angles, improved screen resolution and gain, and a greater ability to reduce or eliminate aliasing or other artifacts in the generated images compared with conventional screens. A method for making a light-transmission screen of this type preferably forms the micro-lens array using a stamping operation based on a master. By taking this approach, the screen is manufactured with fewer process steps and at less cost compared with conventional methods.
Abstract:
A light-transmission screen includes a diffusing element formed from a micro-lens array for projecting images in a viewing space. The screen generates images of improved quality by varying structural features of one or more lenses in the array so that light is directed in different directions and/or with different optical properties compared with other lenses in the array. The structural features which are varied include any one or more of size, shape, curvature, or spacing of the lenses in the array. As a result of these variations, the screen achieves wider viewing angles, improved screen resolution and gain, and a greater ability to reduce or eliminate aliasing or other artifacts in the generated images compared with conventional screens. A method for making a light-transmission screen of this type preferably forms the micro-lens array using a stamping operation based on a master. By taking this approach, the screen is manufactured with fewer process steps and at less cost compared with conventional methods.
Abstract:
Microlens arrays are defined with microlens elements that differ from each other in accordance with a probability distribution for shaping an optical beam having a prescribed intensity profile within a desired far-field scatter pattern. The differences include random variations in a sag profile corresponding to a surface shape of the microlenses, a boundary profile corresponding to a boundary of the microlenses, and a spatial distribution corresponding to the relative position of the microlenses within the array. The sag profile variations can be used to homogenize an intensity profile of the optical beam. The boundary profile variations within an irregular spatial distribution can be used to apply the prescribed intensity profile of the optical beam within the desired scatter pattern.
Abstract:
The present invention provides methods and compositions for identification and counterfit deterrence using non-holographic micro-optics and microstructures having a surface relief greater than a few microns. Embodiments of the present invention disclose a range of distinctive optical effects obtained from micro-optic systems incorporating micro lenses (35), non-imaging collectors (31), prisms, wave guides, mirrors (68), gratings, structural interference filters, and photonic crystal microstructures.