Abstract: An optical sheet is disposed on an observer side relative to an image source and includes a plurality of layers that control light emitted from the image source to emit the light on the observer side. At least one of the plurality of layers is a base material layer. One layer disposed on one side of the base material layer is an optical functional sheet layer which includes prisms arranged in parallel along the sheet surface of the optical sheet whereby light can be transmitted and light-absorbing parts are arranged in parallel between the prisms whereby light can be absorbed. One layer disposed on the other side of the base material layer is an adhesive layer. An adhesive layer is not provided on a side surface of the optical functional sheet layer facing the side disposed with the base material layer.

Abstract: A screen includes: a reflection surface which reflects projection light, wherein a plurality of convexes are disposed on the reflection surface, and each of the convexes contains a spherical surface having a ¼ spherical shape, a curved surface having curvature larger than curvature of the spherical surface and disposed along an end of the spherical surface, and a cover surface having a flat surface shape and disposed at an end of the curved surface.

Abstract: A lens unit and a projection screen made of the same are disclosed. The lens unit includes a micro lens having a light incident surface and a light emergent surface opposing to the light incident surface; a light absorbing layer formed on the light emergent surface of the micro lens and having a cavity formed therein; a scattering layer formed in the cavity of the light absorbing layer and including a transparent resin blended with scattering particles; and a reflective layer formed on the light absorbing layer and the scattering layer. The projection screen includes a plurality of the lens units, thereby achieving high contrast and high energy utilization efficiency of incident light with a large viewing angle.

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: A projection screen is adapted to reflect the projection light generated by a projector. The projection screen includes a light absorbing layer, a light reflection layer connected adjacently to the light absorbing layer, and a light transparent layer. The light transparent layer is disposed on the light absorbing layer and the light reflection layer, and has a total reflection surface, a light emitting surface, and a light incident surface connected adjacently to the total reflection surface. The light incident surface provides a theoretical light convergence point, and the light convergence point and the location of the light reflection layer are in mirror symmetry relative to the total refection surface. The projection light enters into the light transparent layer through the light incident surface for refraction, and travels to the total reflection surface for totally reflection, and then to the light reflection layer for reflecting to the light emitting surface.

Abstract: Fluorescent screens and display systems and devices based on such screens using at least one excitation optical beam to excite one or more fluorescent materials on a screen which emit light to form images. The fluorescent materials may include phosphor materials and non-phosphor materials such as quantum dots.

Abstract: A screen for use in image presentations comprises an array of transmissive elongated prisms. The screen is capable of delivering incident light, having an incident angle within a specific incident angle range, to the viewing area, while preventing ambient light, having an incident angle within another angle range, from being directed to the viewing area. According to one embodiment, in operation, the screen, an image source, and the viewing area are positioned such that the light from the image source is directed to the viewing area.

Abstract: A screen of a projector having a substrate and a plurality of asymmetric optical structures is provided. There is a plurality of light absorbing zones and a plurality of reflective zones alternatively disposed on a surface of the substrate facing the projector. The asymmetric optical structures are disposed on the surface of the substrate and correspond to the reflective zones, respectively. The asymmetric optical structure has a first curved surface and a second curved surface, and the first curved surface protrudes toward the projector for converging an incident light from the projector on the reflective zone, and the second curved surface is disposed at a side of the first curved surface away from the projector for refracting a reflective light from the reflective zones toward the normal direction of the surface of the substrate.

Abstract: This invention presents a four-region catadioptric tile. The four-region catadioptric tile includes a first surface, a second surface, and a filler material layer between the first and second surfaces. The four regions includes a first region wherein the first surface is convex and the second surface is convex, a second region wherein the first surface is convex and the second surface is concave, a third region wherein the first surface is concave and the second surface is convex, and a third region wherein the first surface is concave and the second surface is concave. The surface morphology of each of the four-region catadioptric tiles can be repeated across an entire tessellated projection screen or an angularly dependent retroreflector.

Abstract: A wafer-level optical lens module including one or more embedded lenses and two outer lenses on an outer side of two outermost glass wafers. The embedded lenses may be formed of air or of any material with desired refractive index and dispersion characteristics. The outer lenses may be formed of any material with desired refractive index and dispersion characteristics. This arrangement, with various lenses of the optical module having different refractive indices and dispersions, allows for the formation of a wafer-level optical lens system which corrects for chromatic aberration and astigmatism.

Abstract: A lens array unit includes a first lens array plate, a second lens array plate, and a holder. The holder includes a first surface part provided with a plurality of first through holes respectively corresponding to a plurality of first outer lenses, a second surface part provided with a plurality of second through holes respectively corresponding to a plurality of second outer lenses, and a support part operative to support the first surface part and the second surface part so as to be located at a predetermined distance from each other. The first surface part, the second surface part, and the support part are integrally formed by a light shielding material, and the first lens array plate and the second lens array plate are held by the holder by being inserted into the gap between the first surface part and the third surface part and the gap between the second surface part and the third surface part, respectively.

Abstract: A lenticular label for removable attachment to a surface of an object includes a transparent sheet having a first planar side and a second side having a lenticulated region. The label having a printed image on the first planar side and a low-tack adhesive disposed along the printed image. The low-tack adhesive is configured to provide tangential adhesion between the label and the surface to which the label is removably attached.

Abstract: The invention relates to a device and method for displaying a static or moving picture, wherein the inventive device comprises a laser light source and a screen and is characterized in that said screen has a structure at which the illuminated parts simultaneously reflect or transmit light in different directions inside a beam width.

Abstract: A screen includes a screen sheet including a lens array having a plurality of element lenses arranged in a two-dimensional plane on the front side of the screen, a plurality of reflection surfaces disposed on the backside of the lens array, the plurality of reflection surfaces inclined to the two-dimensional plane, and a plurality of scattering portions that scatter the light directed from the plurality of reflection surfaces toward the front side of the screen. At least one of the plurality of element lenses is a combined lens comprised of a set of two lens portions offset from each other obtained by relatively shifting optical axes of the lens portions, and the reflection surfaces correspond to the respective combined lenses.

Abstract: A screen includes a front surface structure section including a lens array having a plurality of element lenses arranged on a two-dimensional plane on a front side of the screen, a rear surface structure section including a plurality of scattering surfaces formed on a rear side of the lens array so as to be tilted with respect to the two-dimensional plane, and adapted to emit projection light, which has been input, towards the front side of the screen while scattering the projection light, and an adhesive layer adapted to bond the front surface structure section and the rear surface structure section to each other, and the rear surface structure section is composed mainly of a plurality of rear surface forming sections different from each other in a pattern of the plurality of scattering surfaces.

Abstract: A lens module includes: a base unit, a first lens unit, a spacer unit, a second lens unit and a cap unit. The base unit has a first through hole having a first tapered portion. The first lens unit has a first peripheral portion having second and third tapered portions. The second and third tapered portions taper in opposite directions. The second tapered portion is engaged in the first tapered portion of the first through hole of the base unit. The spacer unit has a second through hole having fourth and fifth tapered portions. The fourth and fifth tapered portions taper in opposite directions. The fourth tapered portion is engaged in the third tapered portion. The second lens unit has a second peripheral portion having a sixth tapered portion. The sixth tapered portion is engaged in the fifth tapered portion of the second through hole of the spacer unit.

Abstract: A front-projection screen that includes a prismatic film that comprises an outside surface of the screen. The film includes parallel prismatic grooved lines. Each of the lines have a draft surface, a groove surface, and, each of the lines are located on a first side of a base portion of the film. The screen also includes a diffuser-reflector layer adjacent to a second opposite side of the base portion. The outside surface of the screen is oriented to receive an incoming light exclusively through the draft surfaces of the lines. The incoming light has an angle of incidence of about 60 degrees or greater with respect to the normal of the outside surface. A draft-base angle between the base portion and the draft surface is about 75 degrees or greater.

Abstract: Aspects of the present invention involve novel display screens comprising light diffusion and retro-reflectivity. In embodiments, a retro-reflective light diffusion screen can be used to generate a three-dimensional autostereoscopic display by generating a plurality of viewing windows wherein each viewing window depicts a unique perspective image view.

Abstract: Aspects of the present invention involve novel three-dimensional display systems. Multi-view-window-based display systems are used to generate floating three-dimensional displays. In embodiments, an optical focusing element is positioned at a distance that is greater than or equal to the focal length of the optical focusing element from the viewing windows to form projected viewing windows through which a user can see a floating 3D image. In alternative embodiments, an optical focusing element is positioned at a distance that is less than the focal length of the optical focusing element from the viewing windows to form a rear-projection-like three-dimensional display system. In embodiments, a retro-reflective light diffusion screen is used in the multi-view-window-based display systems.

Abstract: A projection screen for use in a projection system that includes an image source, such as a projector, is substantially flexible. In one embodiment, the projection screen includes a film to provide stiffness to the projection screen. In some embodiments, the film may be substantially self-supporting, thereby allowing for easier manipulating of the projection screen, such as when the projection screen is coupled to an application surface. In other embodiments, the projection screen includes a repositionable adhesive. The repositionable adhesive aids the coupling of the projection screen to a desired position on the application surface. For example, a user may couple the projection screen to the application surface in a first position, and, while the projection screen is still coupled to the application surface, adjust the position of the projection screen to a second position, such as by sliding the projection screen between the first and second positions.

Abstract: The present invention relates to projection films and methods of making the same. In particular, the present invention relates to a projection film whereby the microspheres exhibit improved alignment on the light exit surface and have alignment on the light entrance surface that varies according to the individual microsphere diameter. In another embodiment, the present invention relates to a projection film that has the attributes of variable gain within the single projection film. In another embodiment, the present invention relates to an exposed microsphere projection film construction that provides modification of the head-on and angular pattern of light transmission (gain).

Abstract: An optical member comprises a diffusion layer (13) diffusing emitted light from light sources (12), a first light collection layer (15), in which first projecting portions (15a) extending in a Y-direction are arranged at intervals (T1), refracting and collecting incident light from the diffusion layer (13), a first reflection layer (14) having first reflective portions (14a) facing boundaries between the adjacent first projecting portions (15a) and reflecting emitted light from the diffusion layer (13), a second light collection layer (17), in which second projecting portions (17a) extending in an X-direction are arranged at intervals (T2), refracting and collecting incident light from the first light collection layer (15), and a second reflection layer (16) having second reflective portions (16a) facing boundaries between the adjacent second projecting portions (17a) and reflecting emitted light from the first light collection layer (15).

Abstract: A reflective type screen using a spacer layer and that includes a light blocking layer blocking an incident light, a reflective layer formed on the light blocking layer to reflect the incident light, a diffusion layer formed on the reflective layer to diffuse the incident light, and at least one spacer layer formed between the reflective layer and the diffusion layer to have a refractive index differing from that of an adjacent layer to refract the incident light.

Abstract: A lens unit and a projection screen made of the same are disclosed. The lens unit includes a micro lens having a light incident surface and a light emergent surface opposing to the light incident surface; a light absorbing layer formed on the light emergent surface of the micro lens and having a cavity formed therein; a scattering layer formed in the cavity of the light absorbing layer and including a transparent resin blended with scattering particles; and a reflective layer formed on the light absorbing layer and the scattering layer. The projection screen includes a plurality of the lens units, thereby achieving high contrast and high energy utilization efficiency of incident light with a large viewing angle.

Abstract: The optical diffuser has a transparent base body with a base body surface, which is divided into facets. Each facet has an elevation or a depression correlated or associated with a second curved surface. Respective facets have correspondingly different geometrical shapes. In some embodiments the respective apexes (S) of the elevations or depressions are arranged along a spiral, especially an Archimedean spiral. In other embodiments the apexes (S) are defined by coordinates (xs?, ys?) derived by rotation of coordinates (xp, yp) of all points (P), which are defined by an arrangement of facets with regular hexagonal edge contours, about a center (0, 0) through a twist angle (?). Alternatively the apexes (S) are defined by coordinates (xs?, ys?) derived from coordinates (xp, yp) of all points (P), which are defined by the arrangement of facets with regular hexagonal edge contours, by random variations with the help of a Monte Carlo method.

Abstract: A light-condensing member includes a base plate, a main light-condensing pattern formed on the base plate, and a sub light-condensing pattern formed on the main light-condensing pattern. The main light-condensing pattern includes a plurality of main prisms extended in a first direction. A cross section of a main prism taken along a second direction substantially perpendicular to the first direction has a substantially triangular shape. The sub light-condensing pattern includes a plurality of sub prisms formed on the main prisms and extended in a second direction substantially perpendicular to the first direction. A cross section of a sub prism taken along the first direction has a substantially triangular shape. Since light is condensed simultaneously in both a horizontal direction and a vertical direction through one light-condensing member, manufacturing costs and the thickness of backlight assembly are reduced.

Abstract: A front-projection screen that includes a prismatic film that comprises an outside surface of the screen. The film includes parallel prismatic grooved lines. Each of the lines have a draft surface, a groove surface, and, each of the lines are located on a first side of a base portion of the film. The screen also includes a diffuser-reflector layer adjacent to a second opposite side of the base portion. The outside surface of the screen is oriented to receive an incoming light exclusively through the draft surfaces of the lines. The incoming light has an angle of incidence of about 60 degrees or greater with respect to the normal of the outside surface. A draft-base angle between the base portion and the draft surface is about 75 degrees or greater.

Abstract: Embodiments of an optical device including at least two transparent layers are disclosed.

Abstract: An image display apparatus includes an image generation source, optics for projecting in an enlarged form the image generated by the image generation source, and a transmissive screen for displaying the image projected from said optics. The transmissive screen includes a Fresnel lens sheet disposed at an image generation source side, and a diffusing sheet disposed at an image-watching side in order to diffuse image light at least in a horizontal direction of the screen. The Fresnel lens sheet has a plurality of entrance-side prisms formed at the image generation source side, and a plurality of exit-side prisms formed at the image-watching side, and the Fresnel lens sheet emits lights in a first direction and a second direction. The first direction is almost parallel to a central axis of the Fresnel lens sheet, and the second direction extends toward the central axis.

Abstract: An illumination optical system includes a splitter that includes first and second beam splitters. The second beam splitter includes, on a light source side, a compression optical system for narrowing a width of an incident light and for emitting the incident light having the narrowed width, wherein the compression optical system includes, in order from the light source side to an image display element side, an optical element having a positive refractive power, and an optical element that has a negative refractive power and a concave surface at the image display element side.

Abstract: A diffuser sheet which compensates for chromatic dispersion generated in a hologram light guide plate, and an illumination apparatus employing the diffuser sheet are provided. The diffuser sheet includes a plate type light-transmissive substrate and a light diffusion layer disposed on a light emission surface of the light-emission substrate. A light-incident surface of the light-transmissive substrate has declined surfaces and flat surfaces which are alternatively and repeatedly formed thereon. The declined surfaces are declined at a predetermined angle.

Abstract: An optical plate, in particular in a screen for projection display device, comprises, on a first side, optical elements designed to bend rays received from a light source into a beam of rays in a first direction in a plane containing a main axis. The second side is produced in such a way as to bend the beam in a second direction that is different from the first direction, preferably in line with the main axis.

Abstract: The backprojection and/or projection screen comprises at least a first substrate joined to a scattering layer producing a subsurface effect, which offers a resolution of at least 5×103 dpi, the image being able to be displayed without blurring at a viewing angle of 180° on both faces of the screen.

Abstract: The present invention provides an optical element array that enables lens mounting at low cost and high precision, a display device enabling stereoscopic display using the optical element array, and a method of manufacturing the display device. A lens sheet of the present invention is configured by a plurality of unit lenses and a non-periodic flat part, the non-periodic flat part functioning as a lens reference mark for positioning. A display device is configured using the lens sheet such that the non-periodic flat part of the lens sheet overlaps a positioning mark of a display panel. Since the non-periodic flat part serving as the lens reference mark is arranged on the positioning mark, observation shift of the positioning mark due to lens effect in time of alignment does not occur, and high precision alignment is realized.

Abstract: A projection screen using light control layers having high light diffusion and further providing an image with high image quality over a wide angle range without deteriorating light transmittance is provided. A plural number of light control layers in which a haze value of the layer is dependent on an angle and a light scattering angle region showing a haze value of 60% or more is in the range of 30° or more when light is injected on the surface of the layer at an angle of 0 to 180° are laminated to obtain a screen.

Abstract: A highly diffusing plastic sheet having a thickness of from 1 to 5 mm, a haze of 80% or more and a total light transmittance of 80% or more, which includes at least one diffuser layer A, two or more diffuser layers B, and optionally a diffusing agent-free layer C. The diffuser layer A is formed from a first matrix plastic and a first light-diffusing fine particle having an average particle size of from 2 to 6 ?m and a refractive index of from X?0.02 to X+0.02 wherein X is a refractive index of the first matrix plastic. The diffuser layer B is formed from a second matrix plastic and a second light-diffusing fine particle having an average particle size of from 10 to 18 ?m and a refractive index of from Y?0.03 to Y+0.03 wherein Y is a refractive index of the second matrix plastic.

Abstract: A lens element comprises a first face and a second face, where the first face comprises a plurality of concave shaped lens parts. Each concave shaped lens part is arranged to focus a portion of a beam incident on the second face via a liquid on a single flat surface.

Abstract: Embodiments of an optical device including at least two transparent layers are disclosed.

Abstract: Embodiments of an optical device including at least two transparent layers are disclosed.

Abstract: A light diffusion sheet, a method of producing a light diffusion sheet, and a screen using the light diffusion sheet, are provided. The method of producing a light diffusion sheet includes transferring an uneven form of a surface of a mold to form a light diffusion layer having an uneven surface; and repeating the transferring step twice or more to stack two layers or more of the light diffusion layers on a substrate.

Abstract: The present invention provides a holographic screen having high durability and high diffraction efficiency due to a modulated refractive index structure having a large refractive index change ?n. The holographic screen includes a diamond-like carbon (DLC) layer (22). The DLC layer has a modulated refractive index structure including a plurality of regions with a relatively high refractive index (n1) and a plurality of regions with a relatively low refractive index (n2) such that light projected from a projector onto the screen is deflected in the direction toward a observer and light coming from an object behind the screen is allowed to pass through the screen to travel toward the observer.

Abstract: Disclosed is a display device including an image source unit shaped like a plate to form an image; and an image magnifying unit including a plurality of light transfer members each extended in a first direction and arrayed in a second direction transverse to the first direction, each light transfer member is shaped like a plate, of which a longitudinal direction is parallel with a surface of the image source unit and a height direction is transverse to the surface of the image source, and includes a plurality of cutting parts arrayed in the longitudinal direction and form a plurality of light guide channels. With this configuration, there is provided a display device which can reduce a problem that a joint is distinctive to a user's eye.

Abstract: The present invention provides a technique suitable for making a set more compact by realizing reduction in height and reduction in depth. An image display apparatus of the present invention includes a reflecting mirror (4) for reflecting the image sent from a projection lens (2), and guiding the image to a transmissive screen (3). The reflecting-mirror (4) includes a planar mirror section (4a) for reflecting, of the entire image exiting the projection lens (2), only image portions projected onto the upper section of the transmissive screen (3), and a Fresnel mirror section (4b) with multiple reflective prisms for reflecting only image portions projected onto the lower section of the screen (3).

Abstract: Projection screens include a substrate, a reflective layer on the substrate and a refractive layer on the substrate. The refractive layer includes an array of anamorphic microlenses.

Abstract: The optical diffuser has a transparent base body with a first surface, which is divided into facets. Each facet has an elevation or a depression correlated or associated with a second curved surface. Respective facets have correspondingly different geometrical shapes. In some embodiments the respective apexes (S) of the elevations or depressions are arranged along a spiral, especially an Archimedian spiral. In other embodiments the apexes (S) are defined by coordinates (xs?, ys?) derived by rotation of coordinates (xp, yp) of all points (P), which are defined by an arrangement of facets with a regular hexagonal edge contour, about a center (0, 0) through a twist angle (?). Alternatively the apexes (S) are defined by coordinates (xs?, ys?) derived from coordinates (xp, yp) of all points (P), which are defined by the arrangement of facets with the regular hexagonal edge contour, by random variations with the help of a Monte Carlo method.

Abstract: A projector screen having a simple configuration, which provides a wide field of view angle and can be used for both transmission and reflection projection is achieved. A screen according to the present invention is provided with a directional scattering layer that scatters incoming light within a specific angular range and transmits incoming light outside the specific angular range. Further, an image projection system can be made by combining the screen with an image projector that projects an image onto the screen.

Abstract: Images that are bright even on the periphery of a transmissive screen are obtained by reducing reflection loss of the screen when the screen incident angle of the image light entering the upper left and right ends of the screen increases. Incident-side prisms (10), each having at least a plane-of-incidence (c) onto which light comes in, an exit face (d) from which the light that has come in from the plane-of-incidence exits after being refracted, and a refractive face (e) on which the light that has exited from the exit face is refracted and then guided to the image-viewing side of the Fresnel lens sheet (6), are provided in the range where the incident angle of the incoming light becomes equal to or greater than approximately 40 degrees.

Abstract: An apparatus, system, and method for a front-projection screen having a subsurface diffusion target are disclosed herein.

Abstract: A reflective screen is provided. A reflective screen that displays an image by reflecting light from a light source includes a reflective sheet, a light-scattering sheet, and an adhesive layer bonding the reflective sheet to the light-scattering sheet. The adhesive layer contains a coloring material that absorbs light in a particular wavelength region.

Abstract: A polymer sheet for use in a projection screen comprises polyorgano silsesquioxane microspheres that enhance light diffusing characteristics. Also disclosed is a projection screen comprising at least two glass plates and the polymer sheet disposed therebetween. Also disclosed is a method of manufacturing a polymer sheet by incorporating the microspheres with the polymer.