Abstract: An optical module for projecting a light beam comprises a solid body of transparent material into which a light source is sunk and which is delimited by an annular surface and by a central surface, and a substantially annular reflecting surface arranged around the solid body. The central and annular surfaces are suitable for receiving respective distinct portions of the luminous flux produced by the source. The reflecting surface may have a reflecting coating or may form part of a transparent body, in which case it works by total internal reflection. The reflecting surface reflects a portion of luminous flux refracted by the annular surface and shapes the flux into a predetermined distribution of luminous intensity about the principal axis. The annular surface is designed in a manner such as to reduce the overall thickness of the module by moving the refracted ray away from the principal axis.

Abstract: The light-emitting element emits light itself. The element includes a light-emitting portion having a higher refractive index than a refractive index of air and a diffraction grating structure provided to a light-emitting side surface of the light-emitting portion. The function that a minimum light-emission value is equal to or less than 50% of a maximum light-emission value when white light is emitted from the light-emitting portion is realized.

Abstract: An optical member (3) has an entrance bottom surface (6) opposed to LED chips (1) and the entrance bottom surface (6) is configured to receive light from the LED chips (1), an exit top surface (7) opposite to the entrance bottom surface (6) and the exit top surface (7) is configured to emit the light outside the optical member(3), and an outer peripheral side surface (8) disposed between the entrance bottom surface (6) and the exit top surface (7). The outer peripheral side surface (8) has a plurality of circumferentially extending grooves (9) each having a V-shaped sectional configuration. The grooves (9) are set at an angle at which the entered light can be totally reflected inwardly in the optical member (3).

Abstract: A multi display device includes: a first display disposed at a predetermined position; a second display disposed 10B in front of the first display 10A and being movable from a first position where the second display overlaps with the first display to a second position where the second display does not overlap with the first display; and a transferring member for moving the second display. When the first display is mainly monitored, the second display is transferred to the second position, and when the second display is mainly monitored, the second display is transferred to the first position.

Abstract: An external light shielding film including a lens pattern formed on a surface of a base substrate and including a plurality of aspheric lenses, and an external light shielding pattern formed on another surface of the base substrate, and a display filter having the same, are provided. The external light shielding film and the display filter having the same may increase a contrast ratio in a bright room, enhance brightness, and increase a viewing angle.

Abstract: A packaged light emitting device includes a substrate, a solid state light emitting device on the substrate, a first generally toroidal lens on the substrate and defining a cavity relative to the solid state light emitting device and having a first index of refraction, and a second lens at least partially within the cavity formed by the first lens and having a second index of refraction that is different from the first index of refraction. The second index of refraction may be higher than the first index of refraction. The lenses may be mounted on the substrate and/or may formed by dispensing and curing liquid encapsulant materials.

Abstract: An optical film with a plurality of micro structures which are capable of collecting incident light to the frontal and normalized view angle of the optical film for reducing the chance of incident light returning to light guild plate so as to enhance light collecting efficiency is provided in the present invention. In an embodiment, the optical film is combined with a flat light source so as to form a backlight system. By means of the merit of the optical film, the quantities of the optical film can be reduced so that the backlight system can have characteristics of thin thickness and low production cost.

Abstract: A light source assembly includes a light guide unit and a light emitting unit. The light guide unit includes a hollow enclosure and a lens unit enclosed in the enclosure. The enclosure has a top portion, a bottom portion and a sidewall connected between the bottom portion and the top portion. Protrusions extend from an outer surface of the sidewall and coil the sidewall. A light incident surface is positioned on the bottom portion. The lens unit extends from the bottom portion towards the top portion and has a inverted-frustoconical-shaped light guide portion. A inverted-conical-shaped groove is defined in a topmost portion of the light guide portion. A reflective surface is positioned on an inner wall of the groove. A refractive surface is positioned on an outer surface of the light guide portion and intersects the reflective surface. The light emitting unit is positioned adjacent to the light incident surface.

Abstract: In an optical package capable of guiding light, and an optical lens and a backlight assembly having the optical package, the optical package includes a plurality of light emitting parts and a lens plate. The lens plate defines a plurality of lens parts corresponding to the light emitting parts, respectively. The lens plate has a plurality of light guiding portions extended from the lens parts in a side direction of the optical package.

Abstract: A single combination task lamp and flashlight, providing separate flood and spot light beams, independently controlled in a three-state sequence by simple push button switches. The two kinds of light beams are produced by separate arrays of compact light emitting devices. both arrays are driven by a single, rechargeable battery powered electrical circuit that provides separate, regulated constant currents to the respective arrays of LEDs. the optics and electronics are constructed in a single, ruggedized, compact module. The module is enclosed within a slim, rugged housing and easily field replaceable with minimal tools.

Abstract: By a convex lens arranged on an optical axis extending in a front and rear direction of a lamp unit, direct light from a light emitting element arranged rearward of the convex lens is deflected to emit so that the light is made to be parallel light in a vertical face and diffused light toward left and right sides in a horizontal face. An entire region of a left side lens region of the convex lens is constituted as upper deflecting regions for deflecting light to a direction upward with respect to a direction of light of a right side lens region. Light emitted to the front side by transmitting the respective upper deflecting regions is made to be light directed upward from light emitted from the right side lens region to thereby form a laterally elongated light distribution pattern in which an upper end edge of a portion of being disposed on a left side relative to the optical axis is stepped up from an upper end edge of a portion thereof disposed on a right side.

Abstract: An optical module includes a point light source device and an optical lens. The point light source device generates light. The optical lens includes an inner curved surface and an outer curved surface. The inner curved surface has a first roughly ellipsoidal shape having a first major axis and a first minor axis that is substantially perpendicular to the first major axis. The outer curved surface has a second roughly ellipsoidal shape having a second major axis that is substantially perpendicular to the first axis and the second minor axis that is substantially perpendicular to the second major axis. The light generated by the point light source device enters the optical lens through the inner curved surface and exits from the optical lens through the outer curved surface. Therefore, the number of optical modules used in a display device may be reduced to lower manufacturing cost thereof.

Abstract: A diffuser prism sheet, an LCD back light unit including the same, and an LCD device including the same, the diffuser prism sheet including a base film made of a transparent material, and a light refracting part on a surface of the base film, the light refracting part including a plurality of unit prisms arranged in one direction, having a predetermined cross-sectional shape and valley regions between adjacent unit prisms, and light diffusing elements in the valley regions between the adjacent unit prisms.

Abstract: An optical element including a unitary, non-circularly-symmetrical, piece of optically-transmissive material, which has at least first and second surfaces for concentrating light from a light source onto a linear target region, such that at least one of the first and second surfaces is curved, and such that a first portion of the light is concentrated onto the linear target region by reflection from the first surface, while a second portion of the light is concentrated onto the linear target region by refraction at the second surface.

Abstract: A method for forming a light-redirecting article is provided wherein a surface of a substrate is conditioned by applying a layer of an embedment material. A close-packed layer of microspheres is assembled using drying-assisted self-assembly and applied to the conditioned surface. Microspheres are then embedded halfway into the surface of the layer of the embedment material.

Abstract: The invention relates to a device for redistributing with axis rotated to 90° of the luminous flow emitted by one or more LEDs as secondary optical component for the construction of sources, lamps, illuminating bodies, and solid state optical signalling apparatuses. In one of its basic forms the invention comprises a main optical element (1) and an optical protection case (20) coupled by a pin (5) obtained in the element (1) and a cavity (21) obtained in the case (20).

Abstract: Light that is emitted from an LED chip at a first angle of incidence or less relative to the LED chip is permitted to leave the LED package. Light emitted from the LED chip at an angle of incidence greater than that is kept from leaving the LED package and is recycled back within the LED package. The recycled light is reemitted from the LED package after its angle of incidence relative to the LED chip has been changed, for example by passing it through a diffuser.

Abstract: A light shielding mask 24 opposing to an entrance surface of a fly eye lens 23 is provided, and a transparent portion 25 is made open corresponding to each of lens portions 23b, respectively. Each transparent portion 25 is divided to be formed into a first transparent portion 25a allowing light for forming a projected image 101a on an upper stage of an illuminated surface 100a to enter the lens portions 23b and a second transparent portion 25b allowing light for forming a projected image 101b on an lower stage of the illuminated surface 100b to enter the lens portions 23b, and these are individually set, thereby a difference between an irradiation distance to each of the illuminated surface 100a, 100b due to a step can be complemented, individually.

Abstract: Light from light emitting element enters into a flux control member through a recess on an inner face of the light flux control member, being emitted from an emission control face (outer face). At least so far as light falls within a half-intensity-angular-range, the light satisfies Condition 1 ((?5/?1)>1 except for light in the vicinity of a normal direction of the emission control face) and Condition 2 (Value of ?5/?1>1 gets smaller gradually with increasing of ?1). It is noted that ?1, ?5 are angles made at being inner-incident to the emission control face and at being emitting from the same, respectively. The emission control face has a planar outline shape which is anisotropic around optical axis L, thereby causing value of ?5 /?1 to have a change depending on direction angle ? around optical axis L, with the result that highly uniform light is supplied to a required anisotropic irradiation range.

Abstract: LED apparatus for illumination toward a preferential side, including a light emitter having at least one LED on a base, a primary lens positioned over the light emitter and having a central axis, and a secondary lens placed with an inner surface surrounding the primary lens. The secondary lens has a base-adjacent lower end defining a main plane substantially perpendicular to the central axis, and a compound outer lens surface with a middle-region reference point defining a reference axis parallel to the central axis.

Abstract: A lens for use with a light emitting source is provided. The lens has a main body with a light-collecting face and a light-emitting face and which defines an optical axis extending through the centers of these two faces. A pocket for receiving light from the light source is defined in the light-collecting face by an inner axially-facing surface surrounded by an inner radially-facing surface. The inner axially-facing surface is concave and has a spherical shape. The inner radially-facing surface has a non-spherical, tapered shape and extends between the axially-facing surface and an open end of the pocket. A light assembly incorporating the lens includes a light-emitting diode.

Abstract: A light pipe and an illuminating device having the light pipe are provided. The light pipe may include an optical film in a rolled shape to have a hollow conduit and a supporter surrounding a surface of the optical film. The supporter may have at least one of a protrusion and an indentation on a surface of the supporter.

Abstract: An LED signal that mitigates the “sun phantom” effect includes a lens having an optical segment configured to direct at least some of the incoming generally collimated light rays from the sun passing through the lens away from an LED found in the traffic signal.

Abstract: A compact headlight for a motor vehicle having a light source with a substantially horizontal axis extending substantially perpendicular to the optical axis of the headlight. The headlight does not have a reflector and includes a lens which receives the light rays emitted from the light source and produces a light beam with cut-off. According to one embodiment, the light source and the lens are formed in a single unit wherein the light source is formed from one or more light emitting diodes and the lens is formed from a heat-resistant synthetic material which is molded onto at least one luminous surface of the source.

Abstract: The invention relates to a lighting assembly (10) comprising a housing (12), with one or more openings (26, 28, 30). A lighting means (40) is arranged in this housing emitting radiation through the openings (26, 28, 30) in angular ranges. Means (72) for shielding said radiation from a distant observer are provided. The invention comprises a first transparent cover (32; 72) for covering the openings of the housing. The cover has a micro structure profile (102) to shield unwanted radiation from selected portions of the angular ranges. A second transparent cover (70) protects the micro structure profile of the first cover.

Abstract: An optic film has a surface on which a plurality of rib-like micro light guides is formed. Each light guide includes a plurality of ridges, which are of different height and shows variation of height. Either a high ridge or a low ridge of the light guide is made a continuous left-and-right wavy configuration and/or a continuous up-and-down height-variation configuration. Thus, light transmitting through the optic film and converged by the light guides leaves the optic film in a form that is not very regular so as to facilitate subsequent use of the light in for example a liquid crystal display panel.

Abstract: Light that is emitted from an LED chip at a first angle of incidence or less relative to the LED chip is permitted to leave the LED package. Light emitted from the LED chip at an angle of incidence greater than that is kept from leaving the LED package and is recycled back within the LED package. The recycled light is reemitted from the LED package after its angle of incidence relative to the LED chip has been changed, for example by passing it through a diffuser.

Abstract: A light emitting diode includes a lens, a chip base attached to a bottom of the lens, and an LED chip attached in the chip base to be concentric with the lens. The lens includes a bottom, an outer sidewall extending from the bottom, a first outer top surface extending from the outer sidewall, a second outer top surface extending from the first outer top surface and having a substantially conical groove-like shape, an inner sidewall forming a side of a central cavity formed by hollowing a central portion of the bottom, and an inner top surface extending from the inner sidewall and forming a ceiling of the central cavity. The substantially conical groove-like shaped second outer top surface has an angular point formed toward the central cavity, and the inner top surface is convexly formed toward the bottom.

Abstract: A composite light guide plate contains a transparent plate and a transparent film. A plurality of V-cuts is formed on the light exit plane of the transparent plate, and a plurality of protrudent micro structures is disposed on the bottom surface of the transparent film, filling in the v-cuts. The refractive index of the transparent film is larger than the refractive index of the transparent plate.

Abstract: An external light blocking film includes a base transmitting external light, and an external light blocking pattern which blocks the external light and is formed at the base. A refraction index of the base is larger than a refraction index of air by more than 0 and not more than 0.56. The base satisfies the following equation: 0°<(?1??2)?35°, where ?1 is an incident angle at which the external light is incident onto the base, and ?2 is an refraction angle at which the external light refracts due to a difference between the refraction index of the base and the refraction index of air.

Abstract: An illumination apparatus is disclosed in which its efficiency as an optical system can be improved by effectively utilizing the luminous flux that was not used in conventional illumination apparatuses, and the positional relationship between a light source and an optical member can be set with accuracy. The illumination apparatus comprises a light source, and an optical member having a refractive surface on a side closer to an irradiation range than the light source. The optical member includes a holding portion which holds the light source.

Abstract: The present invention discloses a method of forming internal scattering pattern in the diffusion plate and light guide plate used in backlight module by laser engraving. In the present invention, the distribution and density of the engraved dots can be controlled and modulated depending on the position of the light source and the distribution of luminance to obtain higher luminance and better luminance uniformity.

Abstract: A lens assembly (4) comprises a body (6) formed from a transparent material. The body (6) is mounted on an LED chip (8) comprising an LED (10). The LED (10) is disposed in a recess (12) formed in the body (6) such that the LED 10 is positioned on the longitudinal axis Z of the lens assembly (4). A convex lens (14) is formed in the aperture (12). The outer surface (16) of the lens assembly (4) comprises a plurality of flat surfaces in concentric rings that form a plurality of optical steps (18). The length of the respective steps increases towards the base (7) of the body (6). A central dimple (20) is disposed on axis Z. The dimple (20) prevents a black spot appearing when the lens assembly (4) is viewed along axis Z.

Abstract: A LED signal includes a housing and a cover. At least one LED is arranged on a PCB and mounted within the housing. A collimator that collimates light energy emitted by the at least one LED is positioned adjacent to the at least one LED. A diffuser is positioned adjacent to the collimator and spreads collimated light transmitted through the collimator. The PCB, the collimator, and the diffuser are disposed between the cover and the housing, and the cover provides a protective barrier between environmental conditions and the collimator and diffuser.

Abstract: In an optical package capable of guiding light, and an optical lens and a backlight assembly having the optical package, the optical package includes a plurality of light emitting parts and a lens plate. The lens plate defines a plurality of lens parts corresponding to the light emitting parts, respectively. The lens plate has a plurality of light guiding portions extended from the lens parts in a side direction of the optical package.

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: The invention comprises an optical arrangement for illumination purposes, in particular for a stepped lens spotlight, comprising a stepped lens with a light-diffusing element, in particular a diffusing screen, in which the diffusing screen is arranged in a first region and the stepped lens is arranged in a second region, and in which, with the change in the shape of the light impinging on the optical arrangement and/or the size of the light illuminating the optical arrangement, it is possible to set the aperture angle of the light emerging from the optical arrangement, in particular between two limit values, a smaller ?Sp and a larger ?F1.

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 enclosing V-shaped protrusions, a diffusion layer and a lamp-receiving portion. The second surface is opposite to the first surface. The enclosing V-shaped protrusions are formed at the first surface. The diffusion layer is formed at the second surface. The lamp-receiving portion is defined in one of the first surface and the second surface. A backlight module using the optical plate is also provided.

Abstract: A light source lens includes a circular lens mount defining a shallow concave recess with a square opening, and a lens engaged with the lens mount to locate above the concave recess to receive light projected thereto via the square opening. The lens includes a first spherical portion and a second spherical portion protruded from a top center of the first spherical portion, and is densely provided at a bottom with a plurality of irregular grooves to form an uneven bottom surface. The first and the second spherical portion diffuses and concentrates, respectively, a light source passed through the lens, and the uneven bottom surface of the lens causes the light passed therethrough to scatter at more different angles, so that any halo is eliminated and a softer lighting effect is created.

Abstract: A lens for a lighting fixture equipped with an engaging portion that engages with a counter member. The counter member or the engaging portion has an engaging pawl that engages with the other member. The back surface of the lens is formed with a surface relief to diffuse light, the engaging portion is arranged on the back surface of the lens, and an intermediate surface relief is disposed between the back surface of the lens and a top end surface of the engaging portion.

Abstract: A lens for use with a light emitting source is provided. The lens has a main body with a light-collecting face and a light-emitting face and which defines an optical axis extending through the centers of these two faces. A pocket for receiving light from the light source is defined in the light-collecting face by an inner axially-facing surface surrounded by an inner radially-facing surface. The inner axially-facing surface is concave and has a spherical shape. The inner radially-facing surface has a non-spherical, tapered shape and extends between the axially-facing surface and an open end of the pocket. A light assembly incorporating the lens includes a light-emitting diode.

Abstract: An optical module includes a point light source device and an optical lens. The point light source device generates light. The optical lens includes an inner curved surface and an outer curved surface. The inner curved surface has a first roughly ellipsoidal shape having a first major axis and a first minor axis that is substantially perpendicular to the first major axis. The outer curved surface has a second roughly ellipsoidal shape having a second major axis that is substantially perpendicular to the first axis and the second minor axis that is substantially perpendicular to the second major axis. The light generated by the point light source device enters the optical lens through the inner curved surface and exits from the optical lens through the outer curved surface. Therefore, the number of optical modules used in a display device may be reduced to lower manufacturing cost thereof.

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: The present invention is a lighting arrangement having at least one light source, light at least two light pipes for receiving light from the light source, and a lens having two or more sections. The lens is configured to receive light from at least one of the at least two light pipes, wherein each one of the sections projects light in a desired isomeric beam pattern.

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 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: A faceted reflector includes a plurality of individual reflectors embedded in a carrier, one main area of the carrier being a light entry side, and another main area being a light exit side. The individual reflectors may be cavities in the carrier, which, preferably, have a prismatic form. The radiation to be reflected is subjected to total reflection at a part of the cavity interfaces.

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 light guide plate (10) includes a pair of opposite incidence surfaces (101, 103), an emission surface (108) and a bottom surface (109) opposite to the emission surface. A plurality of dots (11) is distributed on the bottom surface, and each dot is shaped as a rectangle or a square with two cutouts formed at two opposite sides thereof respectively. Thus, a clearance between adjacent dots is relatively small. That is, a distribution of the dots is relatively compact, and this ensures that the light guide plate can provide emission of light beams with good uniformity. Furthermore, adjacent rows of dots are offset, and this can avoid bright lines. Thus, the light guide plate can provide improved display quality. Therefore, the light guide plate can be advantageously applied in back light systems of liquid crystal display devices.

Abstract: Disclosed is a complex film for a display apparatus, which comprises a base film; an anti-reflection film formed on a first surface of the base film and adapted to prevent reflection of external light; an external light shielding film formed on a second surface opposite to the first surface and including an external light shielding pattern, the external light shielding pattern having a plurality of external light shielding parts formed on a surface of the external light shielding film; and an adhesive film formed on the external light shielding film and including at least one colorant having a selective wavelength absorption capability. The complex film has multi-functionalities such as electromagnetic wave shielding, external light absorption, near infrared ray shielding, color correction, and the like, thereby simplifying an assembly process of the display apparatus, and reducing the thickness of the display apparatus.