Abstract: The present invention relates to a security element (16) for security papers, value documents and the like, having a microoptical moiré-type magnification arrangement for depicting a moiré image (84) having one or more moiré image elements (86), having a motif image that includes a periodic or at least locally periodic arrangement of a plurality of lattice cells (24) having micromotif image portions (28, 28?, 28?), for the moiré-magnified viewing of the motif image, a focusing element grid (22) that is arranged spaced apart from the motif image and that includes a periodic or at least locally periodic arrangement of a plurality of lattice cells having one microfocusing element (22) each, wherein, taken together, the micromotif image portions (28, 28?, 28?) of multiple spaced-apart lattice cells (24) of the motif image each form one micromotif element (50) that corresponds to one of the moiré image elements (86) of the magnified moiré image (84) and whose dimension is larger than one lattice cell (24) of t

Abstract: A method for forming a lens assembly is provided, including: providing a mold substrate, wherein at least a recess is formed from a surface of the mold substrate; providing a transparent substrate; disposing a lens precursor material on the surface of the mold substrate or on a first surface of the transparent substrate; disposing the mold substrate on the transparent substrate such that at least a portion of the lens precursor material is filled in the recess; disposing a mask on a second surface of the transparent substrate to partially cover the transparent substrate; after the mask is disposed, irradiating a light on the second surface of the transparent substrate to transform at least a portion of the lens precursor material on the first surface of the transparent substrate into a lens; and removing the mask and the mold substrate from the transparent substrate and the lens.

Abstract: The present invention discloses a fabrication method of a microlens array (MLA) and an MLA fabricated using the same. The fabrication method of an MLA comprises: providing a substrate with an interface hydrophilic modified polymer layer; using light, gas or liquid with the property of converting the polymer' hydrophilicity to create a hydrophilic zone on the interface hydrophilic modified polymer layer; coating the substrate with a liquid material to condense a plurality of liquid microlenses in the hydrophilic zone; and curing the plurality of liquid microlenses to form a plurality of microlenses. Therefore, the fabrication method of an MLA has advantages of fast speed, low cost, no etch transfer and low temperature.

Abstract: A changeable liquid lens array and a method of manufacturing the same. The changeable liquid lens array includes a substrate, a plurality of partition walls arrayed on the substrate and having a fluid travel path, cells defined by the plurality of partition walls, a first fluid comprised in the cells, a second fluid arranged on the first fluid, a first electrode arranged on at least one side surface of each of the partition walls, and a second electrode disposed to be separate from the partition walls. A shape of an interface between the first fluid and the second fluid changes based on a voltage that is applied to the first electrode and the second electrode.

Abstract: Microlens sheetings with different types of composite images are disclosed, in which the composite image floats above, in, or below the sheeting, or some combination. One type of composite image may be viewable to the unaided eye or an observer and another type of composite image is viewable only to the aided eye of an observer. Methods for providing such an imaged sheeting are also disclosed.

Abstract: Microlens sheetings with different types of composite images are disclosed, in which the composite image floats above, in, or below the sheeting, or some combination. One type of composite image may be viewable to the unaided eye or an observer and another type of composite image is viewable only to the aided eye of an observer. Methods for providing such an imaged sheeting are also disclosed.

Abstract: To suppress bad shaping generated due to fusion of neighboring cylindrical lenses in a lens sheet formed by using an ultraviolet curable resin, for example. A lens sheet includes: a substrate formed with a transparent material; a plurality of protruded lines provided on the substrate in parallel at a specific pitch; and a plurality of cylindrical lenses, each of which is provided between the plurality of protruded lines on the substrate. The protruded line for forming the lens is designed to be constituted with a set of two lines, i.e., a left protruded line and a right protruded line, to suppress fusion of the neighboring lenses.

Abstract: Optical films having anti-Moiré and anti-wetout features are described, along with systems and methods for making these optical films. A master used to make optical films is formed using a single axis actuator cutting along a trajectory that is out of plane with the surface of the master. Movement of the cutting tool along the trajectory cuts grooves having variable depth and variable pitch into the surface. Prisms formed from the master have variable depth, variable height prisms that provide anti-wetout and anti-Moiré features.

Abstract: An apparatus that includes a silicon-based support member and a silicon-based alignment structure is provided. The silicon-based alignment structure is received on a receiving surface of the support member. The alignment structure includes a first surface and a second surface parallel to and facing the first surface with a gap defined therebetween and configured to receive a light-emitting device inside the gap with the first surface and the second surface in contact with the light-emitting device such that, when a collimating rod lens is disposed on the alignment structure and over the gap, a longitudinal center line of the collimating rod lens is not aligned with a mid-point of the gap.

Abstract: An optical element assembly with integrally formed microlens is presented. A wafer is provided with a plurality of adjacent IC optical elements, each optical element having an optical transmission port in a wafer top surface. A microlens array is attached to the wafer top surface, so that each microlens in the array overlies a corresponding optical element optical transmission port. Then, a wafer of optical elements with attached microlenses is formed, where each microlens has a first lens surface adhering directly to a corresponding optical transmission port. Subsequent to forming the wafer of optical elements with attached microlenses, the wafer is diced forming a plurality of optical element assemblies. Each optical element assembly includes an optical element integrally formed with an attached microlens.

Abstract: An apparatus includes a substrate having a top surface, a substantially regular array of raised structures located over the top surface, and a layer located on the top surface between the structures. Distal surfaces of the structures are farther from the top surface than remaining portions of the structures. The layer is able to contract such that the distal surfaces of the structures protrude through the layer. The layer is able to swell such that the distal surfaces of the structures are closer to the top surface of the substrate than one surface of the layer.

Abstract: An electronic element wafer module is provided, comprising: an electronic element wafer arranged with a plurality of electronic elements having a through hole electrode; a resin adhesion layer formed in a predetermined area on the electronic element wafer; a transparent cover member covering the electronic element wafer and fixed on the resin adhesion layer; and a plurality of resin optical elements adhered and fixed on the transparent cover member to be integrated in such a manner to correspond to the respective plurality of electronic elements.

Abstract: The present invention provides wafer level optical elements that obviate a substrate wafer or a portion thereof disposed between optical structures or optical surfaces of the element.

Abstract: Exemplary embodiments provide materials and methods for lenticular printing devices, wherein both a lenticular lens sheet and an interlaced composite image can be formed using an imaging device to provide a precise registration translated from a color-to-color registration.

Abstract: A lenticular sheet, in one exemplary embodiment, includes a first surface having at least two portions, an opposing second surface, and a plurality of lenticular lenses formed in the first surface. Each portion of the first surface includes a number of lenticular lenses per centimeter that is different from the number of lenticular lenses per centimeter of an adjacent portion of the first surface.

Abstract: Certain embodiments provide a method for manufacturing a solid state imaging device, the method including: forming a plurality of first semispherical lens bodies; forming a second transparent resin layer; and forming a second lens body. The plurality of first semispherical lens bodies are respectively formed on a plurality of photodiode layers formed on a principal surface of a semiconductor substrate. The second transparent resin layer is a resin layer having an etching rate higher than that of the first lens body, and is formed so that the semiconductor substrate including the plurality of first lens bodies is covered with the second transparent resin layer. The second lens bodies are formed on a surface except the top part of each of the first lens bodies by etching an entire surface of the second transparent resin layer until top parts of the first lens bodies are exposed.

Abstract: A method of fabricating a contiguous microlens array is disclosed. First, an array of photoresist patterns is formed, wherein each photoresist pattern has a substantially circular or polygonal shape in a top view and neighboring photoresist patterns are connected with each other or close to each other. Then a reflow step is performed to heat the photoresist patterns thereby rounding a surface of each photoresist pattern and connecting the neighboring photoresist patterns that are close to each other. Finally, a fixing step is performed to fix a shape of each photoresist pattern. The shape of the curved surface of a microlens in the microlens array is selectively adjusted according to its position in the array and the incident angle of light incident thereto.

Abstract: A micro-lens array and a method for fabricating a micro-lens includes forming a first lens formation material layer on and/or over a micro-lens formation area of a semiconductor substrate, and then forming a portion of the lens formation material layer as a first micro-lens using a first mask. A second lens formation material layer is formed adjacent to the first micro-lens on and/or over the micro-lens formation area. The second lens formation material layer is also formed as a second micro-lens using a second mask which is a different type from that of the first mask.

Abstract: A lenticular product having a see-through window or lens is made by depositing a clear coating on a lenticular sheet. The lenticular product permits scanning a bar code or reading textual data that is printed on an image viewable through the lenticular product for animated, morphing, or stereographic effect. The window or lens of the lenticular product can also provide optical effects (e.g., magnification) in addition to the effects provided by the lenticular sheet. The lenticular product can be made by depositing fluid or resin in a one- or two-step process.

Abstract: The present invention provides an electro-optic unit. A lens unit disposed at an upper portion of a display panel has a plurality of lens part. An electro-optic unit is disposed between a display panel and a lens unit, and includes an electro-optic material layer formed as a graded refractive index lens in an electric field. A display device shows a two-dimensional and a three-dimensional image according to a mode of the electro-optic unit. A driving part may form the graded refractive index lens to have the same pitch as the pitch of the lens part. The graded refractive index lens may be formed as a convex lens or a Fresnel lens. The electro-optic unit is displayed to form the Fresnel lens. A driving method enhancing mode conversion velocity of the electro-optic unit is displayed.

Abstract: A micro-optic film structure that alone or together with a security document or label projects images spatially coordinated with static images and/or other projected images is provided. The inventive film structure is made up of: (a) one or more polymer film materials; (b) one or more planar arrangements of primary image icons; (c) one or more planar arrangements of focusing elements or lenses; and (d) one or more secondary image icons. The planar arrangements are configured such that when a planar arrangement of primary image icons is viewed through a planar arrangement of focusing elements or lenses, one or more first synthetic images are projected. The secondary image icons appear as static and/or other projected images. These images are spatially coordinated with the first synthetic image(s) projected by the film structure, such that when simultaneously displayed therewith, they visually enhance or cancel the projected first synthetic image(s).

Abstract: A lenticular unit includes a transparent substrate; first electrodes being transparent and disposed on the substrate; a second electrode being transparent and elastic; and a transparent material layer interposed between the first and second electrodes and being deformable in a lens shape in a thickness direction depending on a potential applied between the first and second electrodes.

Abstract: A colored microlens array includes a plurality of microlenses for focusing incident light on a plurality of respective positions, on a substrate or a transparent film provided on the substrate, in which peripheral sections of the plurality of microlenses overlap each other at the adjacent positions and the microlenses are colored in a plurality of colors and arranged in a predetermined color arrangement.

Abstract: An optical system that allows an image to be displayed on the surface of a solar panel without this image forming an obstacle to direct solar rays. The system includes a solar panel, a lenticular surface formed from linear lenses, and a transparent film on which an image, the straight bands of which, parallel to the longitudinal axis of the lenses, have been removed, is printed. At certain viewing angles, an observer can see only the image bands, whereas at other angles of incidence the sun's rays will pass through the transparent bands and reach the active surface of the solar sensor. The system is particularly suitable for, for example, aesthetic and architectural integration of solar panels, and for disseminating visual information on the surface thereof.

Abstract: An apparatus that includes a first diode laser and a silicon-based support structure is provided. The first diode laser is configured to emit a first laser beam when powered. The support structure includes a silicon-based support plate, a silicon-based first fin structure, and a silicon-based second fin structure. The support plate has a first primary surface and a second primary surface opposite the first primary surface. The first fin structure has a first primary surface, a second primary surface opposite the first primary surface, and a plurality of edges between the first and the second primary surfaces including a first edge and a second edge opposite the first edge. The first fin structure is physically coupled to the support plate with the first edge of the first fin structure attached to the first primary surface of the support plate.

Abstract: Disclosed herein is an imaging device, including: an imaging lens having an aperture stop; an imaging element adapted to obtain image data based on received light; and a microlens array provided in the focal plane of the imaging lens between the imaging lens and imaging element, the microlens array including a plurality of microlenses arranged in such a manner that each microlens is associated with a plurality of imaging pixels of the imaging element, wherein the arrangement of the microlenses of the microlens array is corrected from an equidistant arrangement to a non-linear arrangement according to the height of the image from the imaging lens on the imaging element.

Abstract: An optical device projecting one or more synthetically magnified images that has been laser marked with one or more static two dimensional (2D) images is provided. The static 2D image(s) laser marked on or within this device and the synthetically magnified image(s) projected by this device help determine the authenticity of a document (e.g., passport data page) or product that employs it. Several embodiments of the inventive device also offer increased resistance to tampering or alteration and wear.

Abstract: A contiguous microlens array including a plurality of contiguous microlenses is described. Each microlens has substantially circular contours at the heights higher than the connection sections of the microlens with neighboring microlenses, and has substantially partially circular contours at the heights on the connection sections adjacent to the neighboring microlenses. The shape of the curved surface of a microlens in the microlens array is selectively adjusted according to its position in the array and the incident angle of light incident thereto.

Abstract: A second region (12) composed of a plane is formed around a first region (11) having a lens function, and a third region (13) is formed between the first region and the second region. A protection film (24) is formed on the surface of the first region 1. The first region is protruded relative to the second region, the third region is formed throughout the rim of the first region 1, and the surface of the third region is recessed relative to a virtual curved surface (11a) that is a curved surface along the surface shape of the first region being extended to the second region. Consequently, it is possible to form throughout the first region a protection film having a surface shape that substantially matches the surface shape of the first region.

Abstract: Microlens sheetings with different types of composite images are disclosed, in which the composite image floats above, in, or below the sheeting, or some combination. One type of composite image may be viewable to the unaided eye or an observer and another type of composite image is viewable only to the aided eye of an observer. Methods for providing such an imaged sheeting are also disclosed.

Abstract: A sheet-like optical member being difficult to damage a shape of a lens part. The sheet-like optical member includes: a substrate; and a lens part, which is formed on the substrate, is made of an active energy ray-curable resin, and has a plurality of unit prisms. The maximum logarithmic attenuation rate ?E of the lens part measured by a rigid body pendulum method is 0.4 or less.

Abstract: A changeable liquid lens array and a method of manufacturing the same. The changeable liquid lens array includes a substrate, a plurality of partition walls arrayed on the substrate and having a fluid travel path, cells defined by the plurality of partition walls, a first fluid comprised in the cells, a second fluid arranged on the first fluid, a first electrode arranged on at least one side surface of each of the partition walls, and a second electrode disposed to be separate from the partition walls. A shape of shape of an interface between the first fluid and the second fluid changes based on a voltage that is applied to the first electrode and the second electrode.

Abstract: One embodiment of the present invention is an optical component, including a first main surface and a second main surface wherein a plurality of two-dimensionally arranged first convex parts are arranged on the first main surface, each of the first convex parts being independent and an aspherical micro lens having an approximate semispherical shape or an approximate elliptic semispherical shape, or having a rounded tip, and a plurality of second convex parts of the height of which is lower than the height of the plurality of the first convex parts, the second convex parts comprising a lens extending in a one dimensional direction, the lens being arranged in one or two directions.

Abstract: Microlens sheetings with different types of composite images are disclosed, in which the composite image floats above, in, or below the sheeting, or some combination. One type of composite image may be viewable to the unaided eye or an observer and another type of composite image is viewable only to the aided eye of an observer. Methods for providing such an imaged sheeting are also disclosed.

Abstract: Injection molding of monolithically integrated optical components is disclosed. In one embodiment, an injection molding system includes a moldplate having an array of specially designed cavities. In at least one cavity, different types of photo-curable optical materials are injected in an ordered sequence. In a first instance, a lens material is injected into the cavity and subsequently cured to form a predetermined lens element at the base of the cavity. In a second instance, a filter material is injected into the cavity above the already formed lens element. The filter material is also cured, and an optical filter is formed stacked onto the lens element and contained within sidewall of the cavity. In this manner, a complex optical component having an optical filter automatically aligned with, and monolithically integrated into, a lens element is readily formed in a single injection molding process.

Abstract: An apparatus includes a substrate having a top surface, a substantially regular array of raised structures located over the top surface, and a layer located on the top surface between the structures. Distal surfaces of the structures are farther from the top surface than remaining portions of the structures. The layer is able to contract such that the distal surfaces of the structures protrude through the layer. The layer is able to swell such that the distal surfaces of the structures are closer to the top surface of the substrate than one surface of the layer.

Abstract: This invention is thought as a material for decoration and construction. It can be used in wet areas, walls, floors, and all surfaces. Changing appearance glass tile (8) is made up of colored, non colored, transparent, translucent, or any type, any size, shape, form and thickness of glass (6) laminated with the use of an adhesive material (7) to a lenticular image (5) which is made up of more than one image (1) divided into dozens of strips per cm with the use of special computer programs (2) and are interlaced in to one image (3) which is then printed behind a lenticular film (4) which is a semi cylindrical formed, precisely specified dimensioned, ribbed transparent plastic which allows the viewer to see one image at a time according to the observation angle or printed on a graphic film and then laminated to lenticular film (4).

Abstract: According to embodiments of the invention, a lens assembly and method for forming the same is provided. The method includes providing a first lens layer having a first transparent substrate and a first lens on the first transparent substrate, providing a second lens layer having a second transparent substrate and a second lens on the second transparent substrate, forming a spacer structure between the first lens layer and the second lens layer, and thinning the first transparent substrate to a first thickness after the spacer is formed.

Abstract: The present invention is to provide a laser irradiation technique for irradiating the irradiation surface with the laser beam having homogeneous intensity distribution using a cylindrical lens array without being affected by the intensity distribution of the original beam. A laser beam emitted from a laser oscillator is divided by two kinds of cylindrical lens arrays into a plurality of beams, which are two kinds of linear laser beams with their energy intensity distribution inverted each other, and the two kinds of linear laser beams are superposed in a minor-axis direction. This can form the linear laser beam having homogeneous intensity distribution on the irradiation surface.

Abstract: The present invention can provide an optical device, an optical uniform device, an optical sheet and a backlight unit and a display apparatus. In the present invention, a lamp image can be removed by uniformly emitting incident light from a plurality of light sources. Further, even if a distance between a light source and an optical device and between a light source and an optical uniform device are short, warpage due to heat generated from a light source does not occur.

Abstract: A transmissive fly's eye integrator is disclosed that includes a first array of lenses and a second array of lenses. The first array of lenses and second array of lenses together form a fly's eye integrator, and the first array of lenses and second array of lenses comprise lenses which have a diameter selected from the range of 5 ?m-50 ?m, and a radius of curvature selected from the range of 25 ?m-2500 ?m.

Abstract: The present disclosure relates to a lenticular display article, such as a container, and a method of making the article. The article includes a lenticular sidewall, which defines a cavity having a top end, and a bottom end, the sidewall having a seam; and an optional base attached to the bottom end of the sidewall. The method of making the article can includes forming a frustoconical sidewall having a seam joining the opposite ends and optionally affixing a base to the bottom end of a lenticular sidewall. Alternatively, the bottom end of the sidewall may be sealed to itself to form a baseless tube.

Abstract: Various embodiments related to rear-projection image display are disclosed. For example, one disclosed embodiment provides a projector for projecting an image and a screen configured to display the image. The screen comprises a filter layer having a light reception side and an image display side. The filter layer includes an array of trapezoidal transmissive elements and an array of trapezoidal absorption elements, where a wider base of each of the trapezoidal transmissive elements faces the light reception side of the filter layer, and where a wider base of each of the trapezoidal absorption elements faces the image display side of the filer layer.

Abstract: There is provided a light source unit which includes a luminescent light source which receives excitation light so as to emit light of a predetermined wavelength band, excitation light sources which shine excitation light on to the luminescent light source, a reflection space having the luminescent light source in an interior thereof and an emission space which emits luminescent light source light emitted from the reflection space from an emission port whose area is made smaller than the area of the luminescent light source and a projector which employs the light source unit.

Abstract: A projection display apparatus 101 in which the light quantity adjusting means has a simple and readily interchangeable structure, and which can improve image quality by adjusting the quantity of light received by a light valve continuously, without causing illuminance irregularities, and without having unwanted light radiated onto the screen, the light quantity adjusting means 9 having light blocking members 91L, 91R for blocking light in transit to a second lens array 22, and rotational axes 91LA, 91RA for turnably supporting each of the light blocking members on an xy plane, the light blocking members 91L, 91R and rotational axes 91LA, 91RA being positioned so that the rotational axes 91LA, 91RA are disposed in positions symmetric with respect to the optical axis AX on the xy plane, and the turning range from the light blocking initiation position at which the light blocking members 91L, 91R, by being turned, start to block light in transit toward the second lens array 22 to the maximum light blocking posi

Abstract: Microlens sheetings with different types of composite images are disclosed, in which the composite image floats above, in, or below the sheeting, or some combination. One type of composite image may be viewable to the unaided eye or an observer and another type of composite image is viewable only to the aided eye of an observer. Methods for providing such an imaged sheeting are also disclosed.

Abstract: Microlens sheetings with composite images are disclosed, in which the composite image floats above or below the sheeting, or both. The composite image may be two-dimensional or three-dimensional. Methods for providing such an imaged sheeting are also disclosed.

Abstract: A structure for pattern formation adapted for optically forming a pattern, characterized by comprising: a photocatalyst-containing layer provided on a substrate, the photocatalyst-containing layer containing a material of which the wettability is variable through photocatalytic action upon pattern-wise exposure.

Abstract: A micro lens array sheet includes a sheet type base and a plurality of micro lenses arranged on the base. The surface of each micro lens includes a convex part and a peripheral edge part. The convex part has a spherical or elliptical surface. The peripheral edge part is formed between the convex part and the base and curved in a concave shape. Since the surface of the peripheral edge part is curved in a concave shape, the flat part can be narrower than a conventional micro lens array sheet. Therefore, luminance unevenness attributable to the flat part can be suppressed.

Abstract: A method for generating spontaneously aligned surface wrinkles utilizes control of local moduli-mismatch and osmotic pressure. The method includes modifying the surface of an elastomeric layer to form a superlayer that is stiffer and/or less absorbent than the elastomeric layer. The elastomeric layer is then swollen with a polymerizable monomer, which causes buckling of the superlayer. The monomer is then polymerized, dimensionally stabilizing the surface buckling. The buckled surfaces generated by the method are useful in a wide variety of end-use applications, including microlenses, microlens arrays, compound microlenses, diffraction gratings, photonic crystals, smart adhesives, mechanical strain sensors, microfluidic devices, and cell culture surfaces.