Abstract: A structure for eliminating bright lines of a tiled backlight module is provided. The structure includes a light guide plate, and a plurality of light sources. The light guide plate includes a plurality of rows of optical elements. The rows of optical elements extend in parallel. The light sources are provided at least one side of the light guide plate for projecting a light into the light guide plate and generating a regular but non-uniform light outputting performance of the light guide plate. Therefore, a brightness of areas where the optical elements are located is higher than the rest areas, so that the light guide plate achieves a regular but non-uniform light emitting performance. Accordingly, the bright lines occurred at joints between two light guide plates are enshrouded by the high brightness areas, and become hard to identify or even undistinguishable, thus “eliminated”.

Abstract: Shield means are provided for use on data input apparatus. The shield means includes a housing or frame with at least one channel defined therethrough. The at least one channel has a first end and a second end and is arranged such that a user can view the first channel end in a first position when the user is looking through the second channel end and the user's line of vision is substantially parallel with the longitudinal axis of said channel, thereby allowing data and/or data input means associated with or below the first channel end to be viewed by the user in the first position. The view of the first channel end is substantially obscured or shielded from the user in at least a second position when the user's line of vision is at an acute angle to said channel longitudinal axis.

Abstract: A light guide plate template which comprises a frame and a plurality of light guide plate building blocks which are arranged in the frame to form an integral light guide plate, each of the light guide plate building blocks has dots on its bottom surface to make it have a predetermined light-emitting efficiency.

Abstract: A plasma display device is provided. The plasma display device includes a plasma display panel (PDP) which includes an upper substrate on which a plurality of black matrices are formed; and an external light shielding sheet which is disposed at a front of the PDP and includes a base unit and a plurality of pattern units that are formed on the base unit and that have a lower refractive index than the base unit. A distance between a pair of adjacent black matrices is 4-12 times greater than a distance between a pair of adjacent pattern units. Therefore, it is possible for a plasma display device to effectively realize black images and enhance bright room contrast with the aid of an external light shielding sheet which is disposed at a front of a PDP and which absorbs and shields as much external light incident upon the PDP as possible.

Abstract: The present invention relates to a film for improving contrast, a plasma display panel (PDP) filter including the film, and a PDP apparatus, and more particularly, to a film for improving contrast, the film capable of reducing a decrease of the contrast by shielding light from an external light source and of preventing an occurrence of moire when attached to a display apparatus, and a PDP apparatus including the film. The film included in the filter for improving contrast includes a pattern of a plurality of stripes with a section in the shape of one of being narrowed from a surface to an inner portion of the film such as a trapezoid and triangle and having a uniform width such as a rectangle and a parallelogram, wherein an angle formed by the stripe pattern and a horizontal line is 0 to 5° when staring at the film in front.

Abstract: A bent glass sheet (1) with a light-shielding film for vehicles includes a glass sheet, and a light-shielding film formed in at least a part, i.e. a film-formed portion (11), of a peripheral portion of one surface of the glass sheet. The light-shielding film is composed of a band-shaped film (12) and a dot-patterned film (13). The band-shaped film is arranged in an outer part of the peripheral portion. The dot-patterned film composed of a plurality of dots (14) is arranged in an inner part with reference to the band-shaped film. The plurality of dots are positioned so that a distribution of the dot shielding ratios decreases from the edge of the band-shaped film toward a side of a glass surface (a non-film-formed portion (15)) on which the band-shaped film is not formed, where the dot shielding ratios are values of peaks of mountains formed of a distribution of the dot-width shielding ratios, or dot-diameter shielding ratios.

Abstract: Skins for light reflecting umbrellas. and for methods of using light reflecting umbrellas. The invention includes skins with a series of panels in stripes of alternating colors, in a shifted configuration, in a checkered shift configuration, in a half and half configuration, in a modified half and half configuration with a center portion having a separate color combination, in a tricolor configuration, in a shifted tricolor configuration and in a center black configuration.

Abstract: A display screen of a color display is disclosed. The display screen includes a glass plate having an array of three different color-emitting phosphors thereon. A graphite-based matrix is placed in the interstitial regions between each of the three different color-emitting phosphors. The graphite-based matrix is formed from an aqueous composition including graphite, an alkali silicate and titanium dioxide.

Abstract: The present invention relates to a wavefront sensor using a pair of screens, each having a two-dimensional array of circular apertures, to achieve Moiré effects, and its use to measure the slope of a wavefront.

Abstract: A parallax barrier is manufactured by forming a light-blocking layer by patterning a metal layer or a resin layer on a barrier glass in a photolithography step. On a mask used in the photolithography step, some pitches between slits are different, the slits corresponding to portions whereupon the light-blocking layers are to be formed. In addition, on the mask, first pitches (for instance, 100) and second pitches (for instance 99.5), which can be actually formed with accuracy, are formed in a cycle, and the average of such pitches can be accord with a theoretical pitch distance (for instance, 99.99). Thus, in the parallax barrier to be used for a multiple display device, visibility of the entire screen can be improved, and the parallax barrier which can be manufactured by using the mask lithography technology having a limited accuracy, and a method for manufacturing such parallax barrier are provided.

Abstract: A method of making optical devices includes applying an energy sensitive protective material and an energy sensitive advanced optical material to a surface. The surface can be on the optical device or on a carrier, such as a thin sheet, to be applied to the optical device. Light energy is applied through a special production filter to cure the energy sensitive protective material on the surface while blocking light energy outside a selected wavelength spectrum from reaching the material. A portion of the optical device can then be masked, and light energy outside the spectrum filtered by the special production filter can be applied to activate the unmasked portion of the advanced optical material. The special production filter allows curing of the protective material using light energy in a limited (e.g., visible) spectrum so that the advanced optical material can be activated using light energy in the ultraviolet spectrum.

Abstract: A lens module includes a barrel (40), a plurality of lenses (42), and a light guide plate (60). The barrel is covered at one end thereof with a transparent board (50). The lenses are received in the barrel. The light guide plate, which is received in the barrel and is located in the light path of the lenses, includes a transparent sheet plate (61) and a plurality of high-transmittance areas (62) defined therein. The high-transmittance areas have a higher transmittance than that of the sheet plate, and the profile and the density of the high-transmittance areas increase with the increase of a distance between a center of the light guide plate and a center of a respective high-transmittance area.

Abstract: An optical sheet includes a substrate onto which light is incident, and a convex part protruded from the substrate by a predetermined thickness. A thickness of the convex part increases from an edge to a center thereof.

Abstract: A screen for displaying an image projected from a beam projector. The screen base is formed with an incombustible metal sheet having silver-white color for displaying an image projected from a light source with nature color. A polished surface is formed on the screen base by polishing the screen base, so that the surface of the screen base has predetermined reflectivity. A surface hardening treatment is implemented on the surface of the screen base using a pickling treatment or an anodizing treatment. The surface reflection type screen formed with a non-combustible metal according to the present invention is excellent in surface hardness, corrosion resistance and acid-resistance so that the screen is easily repaired and maintained. In addition, the screen does not generate poisonous gas in case of fire, and also high quality of an image is displayed on the screen.

Abstract: A reflector comprises a core and a first dielectric mirror formed over at least a portion of the core to reflect light having a preselected wavelength. The reflector may comprise a plurality of dielectric mirrors formed concentrically over the first dielectric mirror to reflect light having the preselected wavelength. The multiple dielectric mirrors may have different diffraction indices. A layer of such reflectors deposited onto the reflective surface of a projection screen may enhance the reflective selectivity of the screen to the preselected wavelength. Reflectors formed to reflect different wavelengths may be deposited onto the reflective surface to enhance selectivity to the different wavelengths and minimize reflection of ambient light.

Abstract: A privacy screen for a display (e.g., a LCD) includes having a polarizing film and a birefringent film is described. The privacy screen transmits substantial amounts of light emanating from the display in an orthogonal (or near-orthogonal) direction while not transmitting substantial amounts of horizontal, non-orthogonal light emanating from the display. In this manner, a privacy effect results in that the display is viewable by someone only when that someone is essentially directly in front of the display.

Abstract: Conventional design tools were not developed for designing square zero-shift supercells. Conventionally, solutions that enable square zero-shift supercells were found by trial and error or by exhaustive analysis. According to a first design criterion of this invention, a non-square supercell in a first frame of reference has a diagonal that is equal in length to the diagonal of a square supercell in a second frame of reference rotated at a desired screen angle to the first frame of reference. The screen angle is a function of the lengths of the sides of the non-square supercell in the first frame of reference. According to a second design criterion, if the area of the corresponding square supercell in the second frame of reference is an integer, a square zero-shift supercell can be designed based on the lengths of the sides of the non-square supercell in the first frame of reference.

Abstract: A privacy screen for a display (e.g., a LCD) having a polarizing film and a birefringent film is described. The privacy screen transmits substantial amounts of light emanating from the display in an orthogonal (or near-orthogonal) direction while not transmitting substantial amounts of horizontal, non-orthogonal light emanating from the display. In this manner, a privacy effect results in that the display is viewable by someone only when that someone is essentially directly in front of the display.

Abstract: Optical properties of a screen on which an image is being projected are considered. A patterned surface is given a predetermined pattern of color pixels whereby a degree of wavelength selectivity is employed to improve the color qualities of the projected image. A system is provided wherein there is a matching of emission characteristics of a projector to the screen's reflective characteristics.

Abstract: The plastic optical component includes a main body and a transparent moisture-proof coating provided on all surfaces of the main body, the moisture-proof coating satisfying the following relation (1): (D1/d)×(L/D2)<10 ??(1) where D1 (mm2/s) is a water diffusion coefficient of a first material of which the moisture-proof coating is made, d (mm) is a thickness of the first material, D2 (mm2/s) is the water diffusion coefficient of a second material of which the main body is made, and L (mm) is an average thickness across an optical surfaces of the second material.

Abstract: A three-dimensional surface shape is produced from input numerical data. The shape of an elastic surface is determined by the positions of a first matrix of memory rods. The position of each of the memory rods is determined by a flexible sheet which is contoured by a second matrix of control rods and is computer-controlled. After control rods transfer the contour data to the memory rods, the control rods are reset to receive new contour data. Both the memory rod and control rod are fitted with two pneumatically controlled locking mechanisms, one for the X-coordinate and one for the Y-coordinate. When both locks on a particular rod are released the rod is free to move to a new position determined by an elevator. Once all of the rods have been adjusted, they are locked in position and the surface has been configured.

Abstract: A three-dimensional surface shape is produced from input numerical data. The shape of a sheet elastic material is determined by the positions of a matrix of control rods. The position of each of the rods is determined by a computer-controlled system. Each rod is fitted with two pneumatically controlled locking mechanisms, one for the X coordinate and one for the Y coordinate. When both locks on a particular rod are released the rod is free to move to a new position determined by an elevator. Once all of the rods have been adjusted they are locked in position and the surface has been configured. In one application, the surface can be used as a mold for casting a replica or in another application can be used as the screen in an image projection system.

Abstract: A panel for a cathode ray tube having an inner surface with predetermined roughness, including a plurality of black matrix layers formed on the inner surface and a phosphor layer composed of red, green and blue phosphors between the black matrix layers, and the phosphor layer and the black matrix layer are formed on the inner surface of the panel after forming a transparent dielectric film, can prevent degradation of brightness and color purity of a screen caused as a result of grinding process which gives roughness to an inner surface of the panel in order to prevent mirror surface reflection on the inner surface of the panel caused by external light.

Abstract: The wavefront aberrator of the present invention includes a pair of transparent windows, or plates, separated by a layer of monomers and polymerization initiator, including a broad class of epoxies. This monomer exhibits a variable index of refraction across the layer, resulting from controlling the extent of its curing. Curing of the epoxy may be made by exposure to light, such as ultraviolet light. The exposure to light may be varied across the surface of the epoxy to create a particular and unique refractive index profile.

Abstract: The present invention provides an all-purpose motor screen. The screen is a removable liquid crystal screen. The screen cooperate outer drive module having drive circuit and battery device, and by changing drive module of various drive circuit to make the screen has various purposes, and can be driven by drive screen display image.

Abstract: The present invention relates to a process for gratings able to resist dizziness, enhance color displayed, eliminate static electricity and block radiation. Steps included are: making a substrate with an enhanced glass or optical plastic glass or optical plastics; coating the surface of the substrate with dizziness-resistant films composed of evenly distributed nano-particles, wherein the inner layer is made of Cu particles or Al particles and the outer layer is made of Cr particles; forming a static-electricity-resistant layer on the grating's surface so as to form an optical diffraction grating able to resist dizziness, enhance color displayed, eliminate static electricity and block radiation.

Abstract: A composition composed of a plurality of microcapsules each including a polymerized, optionally hardened, micelle shell encapsulating a liquid droplet and a particle component.

Abstract: A process for producing an article with a microstructure includes the steps of forming a primary relief structure on a surface of a substrate, applying a photo resist on the substrate, exposing part of the photo resist using a photo mask so as to form a microstructure pattern, developing the microstructure pattern in the exposed photo resist, thereby allowing access to a part of the primary relief structure from the photo resist, and thereby forming a patterned surface with a microstructure relief that is bounded by the exposed part of the primary relief structure and by remainder of the photo resist on the substrate, and forming a metal layer on the patterned surface to form the article having the microstructure with a profile corresponding to the microstructure relief on the patterned surface.

Abstract: The present invention provides a formed type flat panel made of tinted glass, which is capable of satisfying the UL standard for implosion resistance thereof. The formed type flat panel of the present invention includes a substantially rectangular faceplate having an substantially flat external surface and a curved inner surface; a skirt portion extending backward from a periphery of the faceplate; a corner portion joining the faceplate and the skirt portion. The faceplate has a specially tailored thickness distribution so at to accomplish aforementioned capability.

Abstract: A viewing device comprising a media having a lineal pattern of alternating transparent and non-transparent regions printed thereon, wherein the non-transparent regions comprise edges having an Edge Roughness greater than about 2 micrometers.

Abstract: In a vehicle display device having displays (11, 12, 13) fitted in a grained panel (2a) of an instrument panel (2) of a vehicle and serving to emit a display light to an outside during lighting, a front face of each of the displays is covered with a screen (20) having a grained pattern which is provided with a large number of minute holes capable of transmitting the display light. Consequently, a screen can be seen through the minute holes of the screen when the display is turned on, while the display is hidden by the grained screen (20) when the display is turned off. Therefore, the whole portion including the part having the display fitted therein is unified to be grained.

Abstract: A method and apparatus for eliminating the exposure of semiconductor wafers to light during rinsing and drying in wafer cleaning machines having windows is used to reduce scrap and improve the reliability of the integrated circuit devices. An opaque window assembly or a light blocking material is applied to the transparent window to prevent ambient light from entering the processing chamber of the wafer cleaning machine and thereby eliminate light-induced galvanic corrosion produced during rinsing and drying of semiconductor wafers in wafer cleaning machines having windows. This makes the fabrication of advanced integrated circuit devices of increasingly smaller dimensions feasible by eliminating the degradation in reliability caused by light-induced galvanic corrosion produced during cleaning of the semiconductor wafers. The application of a light blocking material to the transparent windows of wafer cleaning machine is cost effective and easily implemented in existing wafer cleaning machines.

Abstract: A filter for a display device, which comprises a dipyrazolylsquarylium dye represented by formula: 1

Abstract: A system for providing visual display security on a general-purpose computer, the general-purpose computer capable of running an operating system and an application, the operating program system and application program presenting a user interface in the form of display windows, includes a display window having a default display characteristic and a computer security program operating on the general purpose computer. The computer security program altering the default display characteristic to a modified display characteristic, the modified display characteristic rendering the display window unreadable to a human eye. The system also includes an optical filter matched to the modified display characteristic so that the display window becomes readable when viewed through the optical filter.

Abstract: A lens circumscribing rays of light incident thereupon from various directions within a fixed region, the system condensing light therewith, and the lighting therewith, are provided. Plural circumscribing ray route lenses 1 characterized by; a refraction condensing light means for transmitting the incident light within a fixed region by refraction in accordance with the region of the incidence angle, and a total reflection condensing light means for transmitting the incident light within a fixed region by total reflection in accordance with the region of the incidence angle: are arranged in a state of transmitted light being emitted within the energy receiver section 12 as a elected region for condensing the sunlight in accordance with the arrangement location of each said lens (FIG.

Abstract: A mask for patterning a microlens includes a glass substrate, a main light-blocking region formed on a predetermined area of the glass substrate, and auxiliary light-blocking regions formed around the main light-blocking region or on a part of the main light-blocking region such that as the intervals between the main and auxiliary light-blocking regions become longer, the intensity of light transmitted thereto becomes greater.

Abstract: A radiographic film mask includes a planar sheet sized for receipt on an illuminated radiographic film examination box. The mask has two opaque sections and a transparent section. The transparent section is disposed on the sheet between the two opaque sections to form a radiographic film viewing area which has an area less than the entire area of the sheet. The sheet may include semi-transparent sections which border the viewing area and interconnect the opaque portions to provide reduced transmission of light along the marginal edges of the radiographic film.

Abstract: In order to improve the printability of a periodic halftone screen, the amount of growth of the halftone dots in a halftone screen is modulated as a function of tone in a tone selective way that is different for at least two halftone dots.

Abstract: A fluorescent display device of the front emission type capable of permitting light-permeable anode conductors to be uniformly formed without any deformation and preventing color filters from being affected by etching carried out for forming the anode conductors. A light-permeable anode substrate is provided thereon with strip-like filters, which are then formed thereon with a uniform and flat protective film of light-permeable, insulating and etching-resistant properties. Then, anode conductors are arranged on the protective film. Thus, the anode conductors can be uniformly formed on the flat protective film irrespective of unevenness on a surface of the filters. Also, the protective film prevents the anode conductors from being exposed to etching liquid used for formation of the anode conductors.

Abstract: A plurality of darkness distributions having a predetermined relationship with a darkness distribution for ND-filtering transmission light at the position of an aperture blade in an aperture device are formed on an original. The original is photographed on a film by a camera, and after the film is developed, the film is molded to obtain a plurality of ND filters.

Abstract: A method for producing a reproduction in reduced or enlarged size of a halftone original with improved tone rendition by the use of a continuous tone correction mask in conjunction with the halftone original applied in projection exposure.It is a particular characteristic of the present invention that said improved tone rendition is obtained by using in said projection exposure a mask image, the maximum density (i.e. density at 3% dot value areas of the halftone original used in the projection exposure) is linearly directly proportional to the screen ruling of the halftone original used in the projection exposure (see FIG. 2 and 3).

Abstract: An image display faceplate having a plurality of recesses (dimples) formed therein for receiving discrete phosphor droplets and having a conformal metallization layer disposed thereon is provided. The phosphor system so described may be dispensed onto the faceplate without the need for multiple sequential depositions, maskings, and material removals and provides for a single step deposition of dis-similar phosphor materials of which the phosphor system is comprised.

Abstract: There is disclosed a system and method for rotationally controlling a circular structure, such as a dome, from the outer circumference of the dome. The system uses an air driven motor having a circular fixed section and a movable section. The movable section is attached to the rim of the dome and is supported by pressurized air over the fixed section. Air, or other fluid, is used to drive the movable section, and hence the dome, around the circle. The dome speed is controlled by air pressure and the position of the dome is monitored.

Abstract: A scanning optical system for preventing ghosting is provided wherein a laser beam emitted by a laser light source is first brought to an image in an auxiliary scanning plane, and reflected by a slit mirror provided in a prism block. The laser beam is incident on the scanning deflector along the optical axis of the scanning lens, and a screen is provided for obstructing ghosting in the vicinity of the scanning surface. Further, at least one side of the prism block on which the light is incident from which the light emerges is curved, or one side of the prism block is treated to prevent reflection. Further, the screen is disposed between the laser light source and the slit mirror so as to obstruct the part of the light beam incident on the mirror which is reflected by the mirror after being reflected by the scanning deflector.

Abstract: The invention provides a device for offset and similar printing from a continuous tone original to produce a halftone image on a photosensitive layer comprising means for screening the information via a first array of parallely extending lines of effective minimum optical density and a second array of parallely extending lines of effective maximum optical density, the arrays being interposed to form a composite array of substantially parallel, spaced-apart, alternating lines of effective maximum and minimum optical density, the lines delimiting therebetween zones of effective graduated optical density, the gradient inside each zone progressively varying from low optical density adjacent lines of the first array to high optical density adjacent lines of the second array, the spacing of lines of the first array being between about 100 and 400 lines per inch and wherein the resulting thickness of each reproduced line on a resulting developed photosensitive layer, generated by screening the information via the ar

Abstract: A courtesy/reading light lens (24) includes a translucent body (26) having a surface (28) covered with an array of opaque dots (30) for selectively controlling the distribution of lights as it passes through the translucent body (26). The opaque dots (30) are organized in multiple sections (32, 34, 26) that together form a dot pattern. The opaque dots (30) within each section (32, 34, 36) are arrayed at a substantially uniform spacing and have a substantially uniform two-dimensional diameter.

Abstract: A light system comprising a light source adapted to illuminate an area and at least two refracting substantially transparent and coextensive films juxtaposed with one another and interposed between the source and the area, the films having mutually confronting patterns of refracting rises formed on respective surfaces of the films, the rises being separated by intervening recesses and the rises and recesses being so oriented as to form diversely distributed light-refraction paths across the films, the patterns being selected so that gaps are provided between the films and to effect diffusion of light from the source cast upon the area.

Abstract: A display device comprising a display screen, and an optical film formed on the display screen and having a porous lower layer mainly consisting of TiO.sub.2 and having a porosity of 30% to 75% and an average pore size of 10 nm or less and an upper layer stacked on the lower layer and essentially consisting of a silicon compound having a fluorine-containing group and a siloxane bond. In this display device, the optical film can be easily formed and has a satisfactory anti-reflection effect and satisfactory strength.

Abstract: An optical window member comprises a substrate having a multiplicity of through-holes, and a diamond film formed on one surface of the substrate and covering the through-holes. A method for producing the optical window member comprises forming a thin film of diamond on one surface of the substrate, imparting a pattern to a photoresist layer formed on the substrate for partially exposing the substrate, and removing the exposed part of the substrate by etching thereby partically forming a diamond monolayer region. The thus obtained substrate possessing a multiplicity of through-holes assumes a lattice-like form, gives shape to the diamond monolayer region and, at the same time, prevents the thin diamond film from being warped or curved, and imparts improved compression strength to the diamond film and protects the diamond film against fracture.