Abstract: An exemplary optical plate includes at least one transparent plate unit. The transparent plate unit includes a light output surface, a bottom surface, a plurality of microstructures, and at least a lamp-receiving portion. The bottom surface is opposite to the light output surface. The microstructures are formed at the light output surface and the bottom surface respectively. Each microstructure has circular cross-sections taken along a plane parallel to its base surface thereof, a diameter of the circular cross-sections decreasing along a direction away from its base surface thereof. The lamp-receiving portion is defined in the bottom surface. A backlight module using the present optical plate is also provided.

Abstract: A light diffusion device for uniformly dispersing light across a gauge dial plate having indicia associated therewith includes an annular member of transparent or translucent material having front and rear annular surfaces each merging with an outer peripheral surface and an inner peripheral surface. The inner peripheral surface is a frusto-conical widening in a direction from the rear surface toward the front surface to reflect light rays toward the outer peripheral and front surfaces thereby effecting uniform illumination across the front surface, and the outer peripheral surface and frusto-conical inner peripheral surface share a coincident axis of generation.

Abstract: An all-in-one light guide plate, a backlight apparatus employing the same, and a method of manufacturing the all-in-one light guide plate are provided. The all-in-one light guide plate has a structure in which a plurality of protrusion type refractive elements for outputting light are integrated into the light guide member. It is possible to improve optical properties by more densely arranging the refractive elements with distance from the light source.

Abstract: A display device includes an optical module, a receiving container and a display panel. The optical module includes a substrate, point light sources and an optical lens. The point light sources are disposed on the substrate, each of which generates light using power applied thereto through the substrate. The optical lens includes a first lens part having a receiving part receiving each of the point light sources, a second lens part disposed at a peripheral portion of the first lens part and having a different shape from that of the first lens part, and a connecting part connecting the first and second lens parts. The light from each of the point light sources sequentially passes through the first lens part and the second lens part. The receiving container receives the optical module. The display panel displays an image using the light.

Abstract: An exemplary prism sheet includes a transparent main body. The main body includes a first surface and a second surface. The first surface is opposite to the second surface. A plurality of elongated V-shaped protrusions are formed on the first surface. A plurality of micro-depressions are defined in the second surface. Each micro-depression is defined by at least three connecting inner sidewalls. A transverse width of each inner sidewall of each micro-depression progressively decreases with increasing distance from the second surface. A backlight module using the present prism sheet is also provided.

Abstract: An exemplary prism sheet includes a transparent main body. The main body includes a first surface, a second surface opposite to the first surface, a plurality of spherical depressions formed in the first surface, and a plurality of micro-depressions formed in the second surface. A bottom surface of each micro-depression is coplanar with the second surface. Each of micro-depressions has four connecting sidewalls. A transverse width of each sidewall progressively decreases with increasing distance from the bottom surface. A backlight module using the present prism sheet is also provided.

Abstract: A near field lens for an automotive light assembly which has a reduced thickness. Generally, the near field lens includes a main body of light transmitting material. A pocket is formed in the main body for receiving light from a light source. The pocket is defined by an inner radially facing surface and an inner axially facing surface. The inner radially facing surface is structured to reduce the thickness of the lens.

Abstract: A lens 10 comprises a first surface 12 and a second surface 14. The first surface 12 is provided with a plurality of horizontal, linear Fresnel lenses 16 and the second surface 14 is provided with a plurality of horizontal pillow optics 18. In the lens 10 the horizontal, linear Fresnel lenses 16 of the first surface 12 provide vertical refraction of light from a central axis sufficient to collimate light from a point to within ±70 degrees of horizontal and the pillow optics 18 of the second surface provide horizontal spread of the collimated light to ±25 degrees from the medial plane.

Abstract: An exemplary optical plate includes at least one transparent plate unit and a diffusion layer. The transparent plate unit includes a light output surface, a bottom surface, a plurality of elongated V-shaped protrusions, and a lamp-receiving portion. The bottom surface is opposite to the light output surface. The elongated V-shaped protrusions are formed at the bottom surface. The lamp-receiving portion is defined in the bottom surface. The diffusion layer is formed on the light output surface of the transparent plate unit. A backlight module using the present optical plate is also provided.

Abstract: An exemplary optical plate includes at least one transparent plate unit. The transparent plate unit includes a light output surface, a bottom surface, a plurality of enclosing V-shaped protrusions, a plurality of microstructures and a lamp-receiving portion. The light output surface and the bottom surface are on opposite sides of the optical plate. The enclosing V-shaped protrusions are formed on the bottom surface. The microstructures are formed on the light output surface. Each microstructure has circular cross-section taken along a plane parallel to its base surface thereof, a diameter of the circular cross-section decreasing along a direction away from its base surface thereof. The lamp-receiving portion is defined in at least one of the light output surface and the bottom surface. A backlight module using the present optical plate is also provided.

Abstract: There is provided a resin sheet having a thickness of 1 to 5 mm, having recesses formed on one surface thereof, the recess having a multi-sided pyramid shape, a truncated multi-sided pyramid shape, a conical shape, a truncated conical shape or a severed sphere shape, having an angle ? which satisfies 10°???40° or 50°???80° or 40°<??43° or 47°??<50° when the angle ? is formed by a side face or the generatrix of the recess and a plane having the opening of the recess thereon, and satisfying at least one of the following conditions (1) and (2). (1) The above recesses form a number of row groups, wherein each row group which constitute the number of row groups comprises a number of rows adjacent to each other, each row comprises the recesses arranged in a line, and each row group is adjacent to other row groups via areas free of the recesses. (2) Severed-sphere-shaped projections are formed on the surface opposite to the surface having the above recesses formed thereon.

Abstract: An exemplary optical plate includes at least one transparent plate unit. The transparent plate unit includes a light output surface, a bottom surface, a plurality of enclosing V-shaped protrusions, a plurality of microstructures and at least one lamp-receiving portion. The light output surface is opposite to the bottom surface. The enclosing V-shaped protrusions are formed on the bottom surface. The microstructures are formed on the light output surface. The lamp-receiving portion is defined in the bottom surface. A backlight module using the present optical plate is also provided.

Abstract: The present invention discloses a microstructure transfer medium and application thereof to produce various microstructures on a film, glass substrate, plastic substrate, etc. for utilization in a variety of optical films of a backlight module, light guide plates, color enhancement film for liquid crystal displays, various patterned nanoimprint for semiconductor or flat panel display processes, and Fresnel lens. Furthermore, the microstructure transfer medium according to the present invention can be applied in producing microstructures on a non-planar surface. The microstructure transfer medium according to the present invention comprises a substrate and a release layer formed on the substrate wherein the release layer has microstructures thereon. Preferably, the surface energy of the release layer is lower than 30 dyne/cm.

Abstract: An exemplary optical plate includes at least one transparent plate unit. The transparent plate unit includes a light output surface, a bottom surface, a plurality of microstructures and at least a lamp-receiving portion. The bottom surface is opposite to the light output surface. The microstructures are formed on the light output surface and the bottom surface respectively. Each microstructure includes at least three side surfaces connected with each other, a transverse width of each side surface decreasing along a direction away from the base surface of the microstructure. The lamp-receiving portion is defined in the bottom surface. A backlight module using the present optical plate is also provided.

Abstract: An exemplary optical plate includes one or more transparent plate section. The transparent plate section includes a light output surface, a bottom surface, a plurality of spherical depressions, a plurality of protruding structures and one or more lamp-receiving portion. The light output surface is opposite to the bottom surface. The spherical depressions are formed on the bottom surface. The protruding structures are formed on the light output surface. Each protruding structure includes two conical frustums aligned at a center axis and stacked together. The lamp-receiving portion is defined in the bottom surface. A backlight module using the present optical plate is also provided.

Abstract: An exemplary prism sheet includes a transparent main body. The main body includes a first surface, a second surface opposite to the first surface, a plurality of elongated waved protrusions formed in the first surface, and a plurality of micro-depressions formed in the second surface. Each of micro-depressions has four connecting sidewalls. A transverse width of each sidewall progressively decreases with increasing distance from a bottom surface that is coplanar with the second surface. A backlight module using the present prism sheet is also provided.

Abstract: An exemplary optical plate includes at least one transparent plate section. The transparent plate section includes a light output surface, a bottom surface, a plurality of elongated V-shaped protrusions, a plurality of spherical protrusions and at least one lamp-receiving portion. The light output surface is opposite to the bottom surface. The elongated V-shaped protrusions are formed on the bottom surface. The spherical protrusions are formed on the light output surface. The lamp-receiving portion is defined in the bottom surface. A backlight module using the present optical plate is also provided.

Abstract: An exemplary optical plate includes at least one transparent plate unit. The transparent plate unit includes a light output surface, a bottom surface, a plurality of microstructures and at least a lamp-receiving portion. The bottom surface is opposite to the light output surface. The microstructures are formed on the light output surface and the bottom surface respectively. Each microstructure includes at least three side surfaces connected with each other, a transverse width of each side surface decreasing along a direction away from the base surface of the microstructure. The lamp-receiving portion is defined in the bottom surface. A backlight module using the present optical plate is also provided.

Abstract: An exemplary optical plate includes one or more transparent plate unit. The transparent plate unit includes a light output surface, a bottom surface, a plurality of spherical depressions, a plurality of enclosing V-shaped protrusions, and one or more lamp-receiving portion. The light output surface is opposite to the bottom surface. The spherical depressions are formed on the light output surface. The enclosing V-shaped protrusions are formed on the bottom surface. The lamp-receiving portion is defined in the bottom surface. A backlight module using the present optical plate is also provided.

Abstract: An exemplary optical plate includes at least one transparent plate unit. The transparent plate unit includes a light output surface, a bottom surface, a plurality of microstructures, and at least a lamp-receiving portion. The bottom surface is opposite to the light output surface. The microstructures are formed at the light output surface and the bottom surface respectively. Each microstructure has circular cross-sections taken along a plane parallel to its base surface thereof, a diameter of the circular cross-sections decreasing along a direction away from its base surface thereof. The lamp-receiving portion is defined in the bottom surface. A backlight module using the present optical plate is also provided.

Abstract: An exemplary optical plate includes at least one transparent plate unit. The transparent plate unit includes a first surface, a second surface, a plurality of conical frustum protrusions, a plurality of spherical protrusions and a lamp-receiving portion. The second surface is opposite to the first surface. The conical frustum protrusions are formed at the first surface. The spherical protrusions are formed at the second surface. The lamp-receiving portion is defined in at least one of the first surface and the second surface. A backlight module using the present optical plate is also provided.

Abstract: An exemplary optical plate includes at least one transparent plate unit. The transparent plate unit includes a light output surface, a bottom surface, a plurality of elongated V-shaped protrusions, a plurality of spherical depressions, and a lamp-receiving portion. The light output surface is opposite to the bottom surface. The spherical depressions are formed in the light output surface. The elongated V-shaped protrusions are formed on the bottom surface. The lamp-receiving portion is defined in the bottom surface. A backlight module using the present optical plate is also provided.

Abstract: A side-emitting light-emitting element and a packaging lens thereof, wherein the packaging lens comprises an incident surface, a reflective surface, a first refractive surface, and a second refractive surface. The first refractive surface has zigzag surfaces. After a light from a light source enters into the packaging lens through the incident surface, a portion of the light is reflected by the reflective surface to the first refractive surface via total internal reflection to vertically penetrate the first refractive surface and then proceeds along a first optical path. The other portion of the light is refracted by the second refractive surface to penetrate the second refractive surface and then proceeds along a second optical path, which is parallel to the first optical path. A zigzag surface of the first refractive surface avoids from undesired lights reflected by the first refractive surface.

Abstract: A light-guide plate includes a base plate, first protrusion patterns and second protrusion patterns. The first protrusion patterns are formed on a left portion of an upper surface of the base plate with respect to a central line of the upper surface. The first protrusion patterns have a cross-section of a trapezoidal shape which has a top and a bottom parallel with each other and first and second inclined sides inclined at different angles with respect to the bottom side. The second protrusion patterns are formed on a right portion of the upper surface with respect to the central line. A cross-section of the second protrusion patterns have the trapezoidal shape and disposed substantially symmetrical to the first protrusion patterns with respect to the central line.

Abstract: A light-transmissive film for use in display devices is provided. The light-transmissive film includes a plurality of first protrusions formed on one surface and extending in a predetermined direction of the one surface, and a plurality of second protrusions formed on an opposite surface to the one surface, extending in one direction of the opposite surface, arranged parallel to the one direction, and arranged parallel to a direction intersecting the one direction. At least one of the first and second protrusions has a refractive index anisotropy in a plane.

Abstract: A planar light source comprises at least one point light source disposed on a supporting substrate, and a cylindrical lens that covers the light emitting observation side of the point light source, wherein the cylindrical lens has a concave lens function in the direction (y direction) perpendicular to the supporting substrate, and has a convex lens function in at least part of the horizontal direction (x direction).

Abstract: An exemplary optical plate includes a first transparent layer (21), a second transparent layer (23) and a light diffusion layer (22). The first transparent layer includes an outer surface (210) and a plurality of semi-spherical depressions (211) protruding out from the outer surface. The second transparent layer includes an outer surface (230) and a plurality of conical frustum-shaped depressions (231) defined at the outer surface. The first transparent, the light diffusion layer, and the second transparent are integrally formed, with the first transparent layer in immediate contact with the light diffusion layer, and the second transparent layer in immediate contact with the light diffusion layer. The light diffusion layer includes a transparent matrix resin (221) and a plurality of diffusion particles (222) dispersed in the transparent matrix resin.

Abstract: An improved light fixture lumenaire having a diffractor-diffuser system optimized for use with multi-lamp lumen packages including high-efficiency fluorescent bulbs. The diffractor has a profile defined by first, second and third parabolic segments, and continuously tapering facets for improved lighting performance. Different diffuser geometries are provided to generate differing light distribution patterns, including a conical diffuser, and a diffuser having a fresnel lens portion and an angled flange portion. Equal numbers of facets and/or facets of similar geometrical profile may be provided on the diffuser and on the diffractor.

Abstract: A light spreading device and a backlight module utilizing the same. The backlight module includes a light guide, a plurality of point lights, and a plurality of light spreading devices. The light guide includes an entrance surface. The point lights are disposed near the entrance surface. Each light spreading device, corresponding to one of the point lights, is disposed between the light guide and the corresponding point light.

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 tail light (lamp) for a motorcycle with improved visibility and outward appearance includes a bulb, a reflector that reflects light from the bulb in a predetermined direction, and a lens that transmits the reflected light. Flux density is varied about a set point, which is distant from the bulb, according to a distance from the set point.

Abstract: In a preferred embodiment, an apparatus, including: a light fixture having a concave reflector disposed on a rear surface thereof; and at least one LED directed at a concavity of the concave reflector.

Abstract: The invention is directed to a lighting system having a reflector, light sources and a light control member sequentially disposed from a light incident side to a light outgoing side. Preferably used for large displays requiring high uniformity, this invention eliminates lamp image and removes the necessity to do light source repositioning, while enabling luminance in the exit plane to achieve excellent luminosity and uniformity. This invention achieves total light transmittance of more than 50% when light is incident at a predetermined angle a from the normal direction of the incident plane and achieves 1.05–3 times more total light transmittance than when the light is from a direction normal to the incident plane. This is achieved by the light control member by controlling the ratio between total light transmittance in the positions of greater transmittance and the total transmittance in the positions of lesser transmittance.

Abstract: A lamp having a planar light-emitting source includes a light-guiding structure, a light-emitting portion, and a shading supporting seat. The point-shaped lighting units of the light-emitting portion emit the point-shaped light beams toward the side plane of the light-guiding structure. Then, these beams enter the light-guiding structure. After turning approximately 90 degrees, a uniformly distributed planar light generated from the light-emitting plane of the light-guiding structure. So, a planar light source is obtained. In this invention, it has a planar light-emitting function with better lighting efficiency. The planar lighting is evenly distributed without shadow. Its energy consumption and heat generation are low. The product's life is prolonged. Its volume is small and it is portable.

Abstract: A display system includes respective light sources disposed at two opposed light input ends of a light guiding plate. A double-sided prism sheet is disposed on a light-emitting side of the light guiding plate and includes, on a first surface facing the light guiding plate, a triangular prism bank extending in a direction parallel to the light input ends of the light guiding plate. The double-sided prism sheet includes, on a second surface, opposite to the first surface, a cylindrical lens bank extending in a direction parallel to the triangular prism bank. A transmissive display panel is disposed on a light-emitting side of the double-sided prism sheet. A synchronization driving section alternatively illuminates the respective light sources so the transmissive display panel displays two different images.

Abstract: The present invention discloses a light modulation element, having a first optical surface and a second optical surface receiving an incident light, the light modulation element comprising: at least a transparent diffusion unit, for scattering the incident light, each being placed on the first optical surface; and at least a transparent collimation unit, for collimating the incident light, each being formed on top of the diffusion unit.

Abstract: A lens comprising a transparent member having at least two surfaces, and a Fresnel lens surface provided on each of the two surfaces of the transparent member, the transparent member including a generally plate-like shape having a first surface and a second surface opposing the first surface, the Fresnel lens surface being provided on each of the first and second surfaces of the transparent member.

Abstract: An optical sheet that accepts light transmitted at or within a specific entrance cone angle that then redirects and transmits the light within an exit cone that is substantially normal to the sheet's plane. The intensity of the light within the exit cone is substantially uniform for any light source entering the sheet within the sheet's acceptance angle. The optical sheet is made of transparent material with microlens arrays formed on its opposite front and back surfaces. The thickness of the optical sheet is sufficient so that the microlens on the opposite surfaces are separated a distance equal to the microlens focal length, with each microlens on the front and back surfaces having substantially similar size and shape, with centers transversely aligned. When used with one or more light sources located on one surface, the transmitted light through the optical sheet is uniform in intensity across a second surface.

Abstract: A brightness enhancing structure for a reflective display. A plurality of transparent hemi-beads form a film substantially covering and protruding inwardly from the structure's inward surface. A corresponding plurality of microstructured toroidal lenses are provided on the structure's outward side. Each lens is optically coupled to an adjacent one of the hemi-beads to redirect incident light rays toward the adjacent hemi-bead, such that the redirected light is totally internally reflected by the hemi-bead and reflected back in a direction approximately opposite that of the incident rays. This substantially reduces undesirable dark, non-reflective circular regions of each hemi-bead which would otherwise exist in the absence of this invention.

Abstract: An LCD device has scratch-resistant property without using a protection sheet and can provide enhanced brightness. The LCD device includes a light path regulating member. The member includes a first prism sheet having first prisms of which apex has a round shape. The first prism sheet concentrates light supplied from a lamp to output the concentrated light. An anti-glare polarizing plate uniformly polarizes polarized planes of the concentrated light and provides the polarized light to the lower substrate. The anti-glare polarizing plate is arranged below the lower substrate of an LCD panel, and an uppermost prism sheet of optical sheets is non-matte-treated and has round-treated apexes. In spite of the absence of the protection sheet, the scratch-resistant property of the uppermost prism sheet and the brightness of the LCD panel may be enhanced.

Abstract: A solid-state light source includes a planar substrate, a single unitary organic light emitting diode (OLED) layer deposited on the planar substrate, the organic light emitting diode layer including first and second electrodes for providing electrical power to the OLED layer, an encapsulating cover covering the OLED layer; first and second conductors electrically connected to the first and second electrodes, and extending beyond the encapsulating cover for making electrical contact to the first and second electrodes by an external power source; and a lenslet array located on the substrate and/or encapsulating cover and coextensive with the OLED layer for directing the light emitted by the OLED layer.

Abstract: A decorated luminary product includes a candle holder containing a candle, wherein at least one of the inner surface and the outer surface of the candle holder has a hammered texture such that light passing through the candle holder varies substantially as a result of variation of refraction of the light. A decorative web of a heat-shrinkable polymer may be heat shrunk to conform to the outer surface of the candle holder. The web is decorated with an ink or pigmentation to cooperate with light and/or heat emitted by burning the candle, so as to provide a pleasing visual effect when the candle is burned, while the hammered texture of the candle holder causes variations in the refraction of light emitted from the candle, causing further visual effects.

Abstract: A light guide plate has a hologram pattern on a light exit surface. The hologram pattern anisotropically diffuses light in the direction parallel with a light incident surface of the light guide plate. On a back surface of the light guide plate are formed mirror-polished prism structures extending parallel with the light incident surface. A downward-pointing prism sheet with a given prism apex angle is placed on the light exit surface of the light guide plate. The use of the downward-pointing prism sheet together with the light guide plate having the anisotropic diffusion hologram pattern integrally formed thereon produces a liquid crystal display device with enhanced luminance properties.

Abstract: In a spread illuminating apparatus comprising a light conductive plate, and at least one spot-like light source disposed close to a light entrance surface thereof, the light conductive plate has, on its light exit surface, a light scattering means comprising a plurality of mechanisms which are each formed so as to extend in a direction perpendicular to the light entrance surface, and which are adapted to scatter the light emitted from the at least one spot-like light source with respect to the direction parallel to the light entrance surface. The mechanisms of the light scattering means each consist of either paired slanting surfaces, a ridge with its surface arced in cross section, or a ridge multifaceted forming a polygonal cross section. The surfaces of the mechanisms may be roughened with a plurality of grooves, thereby achieving a further uniform illumination.

Abstract: There is provided an optical structure. The optical structure includes a light source. The optical structure also includes an organic light management film having an index of refraction of less than 1.7 disposed above the light source, and a transparent inorganic film having an index of refraction of greater than 1.7 disposed adjacent the organic light management film. A optical device is also provided including the organic light management film and the transparent inorganic film. A method of forming the optical structure is also provided. The method includes depositing the transparent inorganic film under vacuum.

Abstract: A luminaire including a lamp, reflector, collimator and optional waveguide. The waveguide can be solid or hollow or include several serially-arranged total internal reflection (TIR) components for redirecting light that has entered the waveguide. In one embodiment, the TIR components are prisms, but are provided without metallized coatings thereby significantly reducing manufacturing costs. In another embodiment, components are arranged in a vertical orientation such that light is directed downward through a collimator or upward, either directly from the lamp or as a result of reflection from the reflector.

Abstract: An industrial luminaire with a prismatic refractor including an interior surface formed as an open-ended surface of revolution of a plane curve about a rotational axis, the plane curve having a plurality of segments corresponding to segments on a reference curve which, for each segment of the reference curve, the corresponding segment on the plane curve has been incrementally rotated with respect to a reference point on a reference axis for the reference curve.

Abstract: A luminaire comprising a housing with an opening on one side. A lamp and reflector are contained in the housing. The luminaire includes an arrangement to distribute radiated heat in front of the lamp away from an area of the center line of radiation towards areas located laterally with respect to the center line of radiation of the luminaire.

Abstract: A light collimating film includes a sheet having a first side and a second side. The first side can include a series of optical elements and the second side includes a series of stepped plateaus and a series of base planes that run along a first axis. The plateaus and base planes alternate along a second axis and the plateaus have an elevation different than the base planes.

Abstract: An electronic apparatus includes a liquid crystal display device. The liquid crystal display device comprises first and second light sources, a light guide plate, and a liquid crystal unit. The first light source is disposed on one of two opposing side surfaces of the light guide plate. The second light source is disposed on the other of the two opposing side surfaces of the light guide plate. A first plurality of substantially parallel grooves are formed in a first surface of the light guide plate which is substantially parallel with a display surface of the liquid crystal unit. A second plurality of substantially parallel grooves are formed in a second surface opposing the first surface of the light guide plate. At least one of a dimension and density of the first plurality of grooves substantially monotonically changes from one in the vicinity of one of the light sources to one in the vicinity of the other of the light sources.