Abstract: A screen according to the present invention includes: a retroreflective layer, which has a front side and a rear side with an array of corner cubes; a low-refractive-index layer, which is made of a substance with a lower refractive index than the retroreflective layer; and a light absorbing layer for absorbing at least a part of the light that has been incident on the retroreflective layer on the front side thereof and then directed toward the low-refractive-index layer through the rear side thereof. In one embodiment, at least a portion of the light absorbing layer faces the array of corner cubes of the retroreflective layer with the low-refractive-index layer interposed between itself and the retroreflective layer.

Abstract: An apparatus for casting a patterned surface on both sides of an opaque web. The apparatus includes a first patterned roll, a second pattered roll, and a means for rotating the first and second patterned rolls such that their patterns are transferred to opposite sides of the opaque web while it is in continuous motion. During this process, their patterns are maintained in continuous registration to within at least 100 micrometers.

Abstract: A method and apparatus relating to a projection screen having a reflective face including gills are disclosed.

Abstract: Polarization preserving front projection screens and diffusers provide optimum polarization preservation for stereoscopic 3D viewing, as well as improved light control for enhanced brightness, uniformity, and contrast for both 2D and 3D systems. Generally, the disclosed screens direct light from a projector toward viewers within a diffusion locus, while maintaining optimum gain characteristics. More specifically, light incident on a region of the front projection screen from a predetermined projection direction is reflected by an engineered surface to a predetermined diffusion locus after undergoing substantially single reflections. The engineered surface, comprised of generating kernels, is used to optimally diffuse illumination light into a range of viewing angles, within the diffusion locus, with suitable gain profile, while optimally preserving polarization for 3D applications.

Abstract: To realize a diffusion film in which arbitrary control of the diffuse light intensity distribution characteristics, and an angular range of diffusion does not change with respect to an incoming light from a specific angular range and a light-outgoing direction converting element that is high in efficiency of conversion of the outgoing direction, and has no limit in the angle of conversion of the outgoing direction, and to provide a thin-model high-quality projection display using the same as a screen.

Abstract: A method and apparatus apply an electric field across active layer, wherein active layer is configured to change from a first light attenuating state to a second lesser light attenuating state in response to the applied the electric field and wherein the second lesser light attenuating state permits light to be reflected from a light reflective face.

Abstract: An apparatus and method for improving the contrast between incident projected light and ambient light reflected from a projection screen are described. The efficiency of the projection screen for reflection of the projected light remains high, while permitting the projection screen to be utilized in a brightly lighted room. Light power requirements from the projection system utilized may be reduced.

Abstract: A projection screen for selectively reflecting light from a front projector. The screen includes an etalon coating structure with a first layer of reflective material, a second layer of dielectric material, and a third layer of partially reflective semiconductor material. The projection screen produces a reflection having an asymmetric-shaped response in the visible spectrum.

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: A screen includes: a plurality of three-dimensional shape units disposed two-dimensionally on a front side of a screen substrate; a reflecting film formed at least on an area corresponding to projection light entering a surface of the plurality of the three-dimensional shape units of the screen substrate; and a light absorbing film formed on an area corresponding to outside light entering the surface of the plurality of the three-dimensional shape units, wherein at least a part of the light absorbing film is formed so as to overlap a part of the reflecting film on the front side of the reflecting film.

Abstract: A display screen is provided. The display screen may be configured to receive an image from a display device, and includes a first surface with a topography configured to transmit light from the image, and a second surface configured with light reflecting portions and light absorbing portions. The light reflecting portions may be configured to substantially reflect light transmitted from the first surface, and the light absorbing portions may be configured to substantially absorb environmental light.

Abstract: A method of manufacturing a screen having a screen substrate provided with a plurality of three-dimensional shape units disposed two-dimensionally on a front side of the screen substrate, includes: forming a first film by applying a first film forming material to be an antireflection film to at least part of surfaces of the three-dimensional shape units among the screen substrate; and forming a second film by applying a second film forming material to be a reflecting film with a predetermined incident angle to the screen substrate, the reflecting film on at least part of the antireflection film.

Abstract: In embodiments, an intensity of light is adjusted according to data indicating the states for elements.

Abstract: A disclosed reflective screen is configured to display an image projected from a projection device located within a short distance. The reflective screen comprises a first reflective surface configured to reflect, in a substantially same direction, projection light beams projected from a first position, and a second reflective surface configured to reflect, in the substantially same direction, projection light beams projected from a second position different from the first position.

Abstract: A reflective screen that uses an aluminum-foil reflecting layer, wherein speckling can easily be suppressed in the reflective screen. The reflective screen is composed of a surface diffusion layer, a transparent adhesive layer, and an aluminum-foil reflecting layer layered together. A diffusing material is added to the transparent adhesive layer, and a transparent layer having a prescribed thickness is provided between the transparent adhesive layer and the aluminum-foil reflecting layer.

Abstract: To provide a directional screen which can efficiently converge light from a projector on an observer and which is hardly affected by external light. That is, multiple transparent protrusion structures are formed on a base material, and a light absorbing layer communicating in the vertical direction of each of the protrusion structures is provided. The formation of a recess structure or a through-hole exerts an effect similar to that of a protrusion structure. Alternatively, fibrous protrusions each having a high light reflectance are used as the protrusion structures, and are densely formed on the base material while they are slanted in the direction of external light.

Abstract: Various embodiments of moving between light interaction states are disclosed.

Abstract: Improved apparatus and methods for displays are disclosed that utilize light concentration array between mechanical light modulators and the viewing surface of the display. The light concentration array includes an array of optical elements that concentrate light on respective ones of the light modulators to maximize the contrast ratio and off axis viewing of the display.

Abstract: Various embodiments for projection partitioning and aligning are disclosed.

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: Embodiments of adjusting light intensity are disclosed.

Abstract: A screen having two optical characteristics is realized in a compact structure. As a result, a structure is provided where two types of screen surface having different optical characteristics are formed on the same side of the same sheet, and wound in a single storage tube, and it is possible to pull out and fix the first screen from the storage tube in a state where the second screen is stored in the storage tube.

Abstract: A screen includes a plurality of structures arrayed in parallel in at least one direction of a first direction and a second direction perpendicular to the first direction on a reference surface parallel to the first direction and the second direction. The structures are arrayed such that at least one of a distance between central positions of the structures adjacent to each other and a size of the structure changes irregularly in at least one direction, in which the structures are arrayed in parallel, of the first and second directions.

Abstract: A screen includes a plurality of reflecting portions disposed on a flat surface with a clearance left between one another. The reflecting portions reflect diagonal incident light coming in a predetermined direction other than the normal line direction of the flat surface, and block the diagonal incident light by reflecting the incident light such that the incident light cannot reach each area between the adjoining reflecting portions on the flat surface.

Abstract: A projection screen (10) includes a plurality of asperities (14) extending from a substrate, the asperities having faces oriented in a plurality of directions. A photosensitive material is disposed preferentially on the faces so that a differing amount of photosensitive material is present on faces oriented generally toward a projector direction (16) relative to faces oriented generally away from the projector direction (18).

Abstract: An optical diffusing sheet is provided, which prevents deterioration in image quality which might result from warping of the sheets due to environmental changes, and is capable of, even if a substrate is broken by an accident, preventing scattering of pieces of the broken substrate. An optical diffusing sheet is used in a transmission type screen that emits imaging light projected from an incident side to an emergent side. The optical diffusing sheet includes a highly rigid substrate layer with a light-transmissibility and a high rigidity, and a plurality of layers laminated on the highly rigid substrate layer. The plurality of layers includes at least a pair of anti-scattering layers disposed on opposite sides of the highly rigid substrate layer for preventing scattering of the highly rigid substrate layer. At least one layer of the two or more layers includes an optical diffusing element that diffuses imaging light.

Abstract: A reflection type projecting screen includes a diffuse plate having a diffuse transmission surface for converting at least transmission light into diffused light and a corner cube array for reflecting the light passing through the diffuse plate to a position which is approximately similar to a passing position of the diffuse transmission surface. The diffuse plate and the corner cube array are positioned in an order of the diffuse plate and the corner cube array. The reflection screen is capable of improving utilization efficiency of light and simplifying the structure while reducing the effect of outside light. Furthermore, there are provided a front projector system and a multi-vision projector system each of which has a projector for projecting the projection light and a reflection screen for reflecting the projection light as diffused light having directivity in at least one predetermined direction, in accordance with the incident direction of the projection light.

Abstract: The present invention discloses a method for presenting an advertisement by displaying an image on a rotational or moving surface by projecting an image onto a rotational or moving surface. Since the image is not affixed onto the rotational or moving surface, the projected image can be viewed as a stationary image as the projected lights are reflected from the rotating or moving surface. Advertisements or different kinds of images can be presented on rotating surfaces such as rotating tires or rotating engine blades.

Abstract: A woven projection screen includes a viewing portion having a front side facing toward a viewing zone. The viewing portion includes a plurality of first filaments having asymmetric geometries in cross-section and having reflective surfaces for primarily reflecting an image signal light and a plurality of second filaments. The plurality of first filaments are interwoven with the plurality of second filaments, such that, the plurality of second filaments are configured to support the plurality of first filaments in a manner that causes the reflective surfaces to be positioned to redirect the image signal light into a range of angles toward the viewing zone.

Abstract: A screen including a first plane and a second plane opposite to the first plane, at least one of which is illuminated with light, includes a reflective portion that reflects the light incident on the first plane, a transmissive portion that transmits the light incident on the second plane toward the first plane, and an optical element that focuses the light incident on the second plane such that the focused light is incident on the transmissive portion.

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 to be directed to the viewing area.

Abstract: The present invention is a broadband projection-receiving surface that can function as a projection screen. This surface can, even in strong ambient light, provide high gain, prevent glare and speckle, provide high contrast, preserve of gray-scale linearity, provide a uniformity of brightness, provide rapid angular cut-off, preserve polarization, and provide the ability to function over a large spectral range. These achievements result from a production method that utilizes purposeful partitioning of the material processes used in sub-wavelength morphology (finish) from the processes used to make super-wavelength morphology (figure).

Abstract: A screen for a trade show or like environment that is lightweight, flexible and compactible. The screen may be patterned to include a plurality of ridges extending from a top to a bottom thereof that serve to reflect projected light into a larger field of view. The screen may be concave about a horizontal axis of otherwise arranged to reflect projected light toward a desired audience. Various releasable, biased mechanisms for attaching a flexible screen member to a disassembleable frame structure are also disclosed.

Abstract: A screen that transmits light according to an image signal includes: a first surface and a second surface provided at an incident side of the light according to the image signal; a light exiting surface that outputs the light according to the image signal; and an angle conversion part that performs angle conversion on the light according to the image signal and outputs the light, wherein the second surface reflects the light incident from the first surface toward the light exiting surface, and wherein at least one of the first surface and the second surface has one of a light divergence function of diverging the incident light and a light convergence function of converging the incident light.

Abstract: A screen includes a plurality of convexes disposed on a flat surface with a clearance left between one another. The convexes reflect diagonal incident light coming in a predetermined direction other than the normal line direction of the flat surface, and block the diagonal incident light by reflecting the incident light such that the incident light cannot reach each area between the adjoining convexes on the flat surface.

Abstract: In a particular, a high contrast projection system configured for front or rear projection includes a screen having a viewing side and a back side opposite thereto. The screen includes a transparent layer of material having louver members disposed therein to provide fractional reflective coverage across the width of the transparent material. The screen discriminates an image signal light from a source, such as a projector, from ambient light incident upon the viewing surface. The image signal light is redirected over a range of angles relative to a normal to the viewing side, while the majority of ambient light is directed generally toward the back side, for example passing through the transparent material between louver members. A light absorbing back panel adjacent to the back side absorbs the ambient light further improving contrast.

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 projection screen for receiving projector light from a projector facing direction includes a substrate having a plurality of features. Each of the features includes a reflective surface oriented to the projector facing direction. Each of the reflective surfaces is curved in a first direction to provide a desired horizontal viewing angle, and is curved in a second direction to provide a desired vertical viewing angle.

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

Abstract: An apparatus, system, and method for a dual front/rear projection screen having a first exterior surface and a second exterior surface are disclosed herein. The second exterior surface may be shaped to facilitate transmission and reflection of a portion of light and enable viewing an image from both sides of the projection screen.

Abstract: An image display system includes a reflecting screen that has a reflecting surface. The reflecting surface includes micro-ridges having a plurality of reflecting ridge-surfaces wherein the reflecting ridge-surfaces constituting a Fresnel mirror whereby the reflecting ridge-surfaces reflecting parallel reflecting light beams for all incident light beams projected from a light source located at a focal point of the Fresnel mirror. The micro-ridges further include a plurality of darkened ridge-surfaces with reduced reflectance for reducing ambient reflections. The micro-ridges further constitute a continuous concentric ridge having the reflecting ridge-surfaces facing a bottom direction toward the focal point of the Fresnel mirror for disposing a light source near a bottom location of the projecting screen. The continuous concentric ridge further has reduced reflectance ridge-surfaces facing a top direction away from the focal point of the Fresnel mirror.

Abstract: There are provided a reflection type screen capable of suppressing effects of external light and obtaining a wide viewing angle with a simple structure, and a forward projection system having the reflection type screen. A reflection type screen 100 has transparent prismatic members 5 arranged parallel to a longitudinal direction of a base 1, between the base 1 of a light absorbing member and a front sheet 2 of a transparent projective layer. Each transparent prismatic member 5 has a transmissive plane 3, and a diffusion-reflection plane 4 formed at a specified angle. The diffusion-reflection plane 4 is formed by arranging a reflection film on one of surfaces of the transparent prismatic member 5. Projection light is diffused and reflected by the diffusion-reflection plane 4, and external light passes through the transmissive plane 3, and is absorbed in the base 1.

Abstract: A manufacturing process for enhancing a light reflective rate in a reflective type display device is provided. The manufacturing process comprises steps of: forming a first conductive layer and a first dielectric layer over a substrate; etching the first dielectric layer; polishing the etched first dielectric layer; forming a second conductive layer over the substrate; and patterning the second conductive layer to form a concave mirror on the surface of the second conductive layer.

Abstract: A projection screen includes a light absorbing substrate having a plurality of alternating crests and recessed portions. A light reflecting layer is established on the light absorbing substrate such that a receding portion is established on each of the recessed portions and a conformal portion is established on each of the crests. Each of the plurality of crests has a surface at which the light absorbing substrate is exposed.

Abstract: A projection screen for selectively reflecting light from a front projector. The screen includes an etalon coating structure with a first layer of reflective material, a second layer of dielectric material, and a third layer of partially reflective semiconductor material. The projection screen produces a reflection having an asymmetric-shaped response in the visible spectrum.

Abstract: A front screen with a simple construction provides a wide viewing angle towards the desired direction, realization of an image projection system. The front screen that is utilized in present invention comprising a directional diffusing layer that transmits and diffuses incoming light from a specified angular range and linearly transmits incoming light from other angles, and a light-reflection layer that provides reflecting elements that scatters and reflects light. Furthermore, the light-scattering field of the reflecting elements in the light-reflecting layer in the up and down direction differs to that in the left and right direction and provides an anisotropic scattering property. Thereby, the construction is adjusted to the viewing condition.

Abstract: A disclosed reflective screen is configured to display an image projected from a projection device located within a short distance. The reflective screen comprises a first reflective surface configured to reflect, in a substantially same direction, projection light beams projected from a first position, and a second reflective surface configured to reflect, in the substantially same direction, projection light beams projected from a second position different from the first position.

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: A projection type screen comprises a reflection surface array and a lenticular sheet. In the reflection surface array, a plurality of reflection surfaces is located along a horizontal direction. Each reflection surface has a mirror reflectivity of which section along the horizontal direction is quadratic curve shape. The lenticular sheet is located at an incident side of a projection light for the reflection surface array. The lenticular sheet has diffusivity along a vertical direction.