Abstract: A microlens array includes plural powered microlenses or microlens elements for tilting different light-emitting elements or portions of a light-emitting device. Each microlens or microlens element both has optical power, and adjusts the tilt of the wavefront so that in combination the individual microlenses act like a more complex multiple-element optic where each element shifts light from only a portion of the light-emitting device. Such an optical device may be incorporated into eyewear for projecting subtitles or other information above or below a far-away image, such as on a movie screen. Another potential use of the microlens array is for use in a heads-up display. Still another potential use for the microlens array to provide soft focusing of emitted laser light to achieve a target light spot of a desired diameter.

Abstract: An exemplary prism sheet includes a transparent main body. The main body includes a first surface, a second surface and a plurality of spherical micro-depressions and a plurality of triangular pyramidal micro-depressions. The first surface and the second surface are on opposite sides of the main body. The spherical micro-depressions are formed in the first surface and the triangular pyramidal micro-depressions are formed in the second surfaces. A backlight module using the present prism sheet is also provided.

Abstract: The display device is provided with: a display panel that displays an image; a circuit board 20 that is disposed on a back surface of the display panel; a plurality of LED chips 21 that are disposed in an array on the circuit board 20 and that emit light to the display panel; and a lens 30 of a hemispherical shape that is disposed on the circuit board 20 and that covers each of the plurality of LED chips 21. A following relationship is established: R1/0.281?L1, where L1 denotes an array pitch of LED chips 21 constituting the plurality of LED chips 21, and R1 denotes a radius of the lens 30. Accordingly, a light-emitting device achieving a high degree of light utilization efficiency and an excellent degree of color mixing, and a display device using the light-emitting device are provided.

Abstract: A lens for a wet environment lighting device that has a fixture with an interior that has an opening, and at least one light source located within the fixture interior. Light from the light source proceeds out through the opening. The lens is for location in front of the fixture and the light source located therein and the lens encloses the opening from the wet environment. The lens has a first light-directing area for directing light in a first beam pattern. The lens also has a second light-directing area, distinct from the first light-directing area, for directing light in a second beam pattern, distinct from the first beam pattern. The lens is positioned relative to fixture and light source therein to select from the distinct beam patterns based on the alignment of the light-directing areas relative to the light source resulting from a positioning of the lens.

Abstract: An exemplary prism sheet includes a transparent main body. The main body includes a first surface, a second surface and a plurality of conical frustum micro-depressions and a plurality of triangular pyramidal micro-depressions. The first surface and the second surface are on opposite sides of the main body. The conical frustum micro-depressions are formed in the first surface and the triangular pyramidal micro-depressions are formed in the second surfaces. A backlight module using the present prism sheet is also provided.

Abstract: An illumination light source includes an incoherent solid state light source adapted to emit light over at least one light emission surface and having a total light emission surface area S0; a light circulation device including at least one light receiving surface adapted to receive the light from the incoherent solid state light source, and a light extraction area having a first surface area S1; and a light extraction device for extracting the light from the light circulation device at the light extraction area, wherein S1<S0. Accordingly, the apparent brightness of the light is increased by distributing it over a smaller area.

Abstract: A luminaire contains a main light source the light of which is emitted by the luminaire, and an additional light source the light of which is mixed with the light of the main light source before the emission thereof. A part of the light issued by the additional light source is, with respect to the light emitted by the main light source, issued by the luminaire housing directed to the side or to the rear side.

Abstract: The lighting system according to the present invention includes an electrical wiring substrate in which a connector to a power source is formed, a plurality of LED chips mounted in a predetermined array pattern on the electrical wiring substrate, a deflection lens array disposed in proximity to the LED chips between the LED chip and the predetermined illumination region and a housing for receiving the electrical wiring substrate and the deflection lens array. A plurality of deflection lenses are integrally molded in the deflection lens array to lead lights from the LED chips to the predetermined illumination region in a state where the lights from the LED chips are superposed with each other. The lights emitted from the LED chips are collected in a state where they all are superposed in a common, single illumination region through the deflection lenses.

Abstract: Various embodiments described herein comprise array of light emitting diodes and a cylindrical lens having front and rear curved surfaces. The cylindrical lens is disposed to receive light from the light emitting diodes and to redistribute the light. The cylindrical lens is located no more than about 8 inches distance from the front an illumination target, which may for example, comprise products on shelves in a refrigerator. The front and rear surfaces of the cylindrical lens are shaped to provide substantially uniform illumination across the target.

Abstract: The invention relates to a semiconductor radiation source comprising a base body which is connected to at least one LED chip thermally connected to an end side of the base body and a pliable flexible printed circuit board fitted on the same end side of the base body. The flexible printed circuit board at least partly surrounds the LED chip, has at least one printed-on conductor track (20) electrically connected to the LED chip and, in the peripheral region of the base body, has an angled-away section (27) extending at least partly along a side wall of the base body. At least one part of the section of the flexible printed circuit board (14) extends at least partly in an in particular lateral cutout (34) into the base body (12).

Abstract: An LED lamp includes a fixing rod, a first heat sink mounted to the fixing rod, a second heat sink mounted on the first heat sink, a plurality of LED modules attached on the second heat sink and a lamp cover engaging the first heat sink to enclose the second heat sink and the LED modules. The second heat sink includes a plurality of heat-conducting faces formed on a bottom end thereof and arranged at different levels. The LED modules are respectively attached on the heat-conducting faces of the second heat sink. The lamp cover includes a panel and a plurality of annular steps extending outwardly from the panel in sequence. Each annular step has a concave lens attached thereon. The annular steps are located corresponding to the LED modules of the second heat sink, respectively.

Abstract: A light guide is disclosed. The light guide includes an incident surface, an exit surface, and a light guide section. Light emitted from a plurality of light emitting devices disposed in line enters from the incident surface. The exit surface is formed in a shape causing light to be concentrated. The light which has entered from the incident surface exits from the exit surface. The light guide section is bent. The volume of the light guide gradually increases in a direction from the incident surface to the exit surface.

Abstract: Provided is a light emitting apparatus for illuminating large spaces and configured to enclose a surveillance camera within. The light emitting apparatus includes a plurality of chambers disposed on a perimeter of said housing along a horizontal plane directing outwardly, and substantially vertically, light generated within. The chambers include light emitting elements for generating the light and a lens for directing the generated light. Exemplary embodiments may be attached to a structure such as a light pole, a wall, or a ceiling. The light emitting apparatus may have a hollow center to enclose the surveillance camera, and may also have an opening at the bottom, covered by a transparent cover, through which the camera may capture images of the outside of the apparatus.

Abstract: An LED light module of uniformly mixed light is provided. The LED light module has a plurality of shifted-disposed LED packages, arranged as a polygon, disposed on a substrate. Each of the shifted-disposed LED packages includes a base, and an LED die disposed aside from a center of the base. The light emitted from the shifted-disposed LED package is asymmetrically dispersed and is tilted to a predetermined direction. Therefore, the lights from the shifted-disposed LED packages are centralized and uniformly mixed as white light.

Abstract: Lamps, luminaries or solid state lighting components are disclosed having multiple discrete light sources whose light combines to provide the desired emission characteristics. The discrete light sources are arranged in an array pursuant to certain guidelines to promote mixing of light from light sources emitting different colors of light. One embodiment solid state lighting component comprises a light emitting diode (LED) component having an array of LED chips having a first group of LED chips and one or more additional groups of LED chips. The array is arranged so that no two LED chips from said first group are directly next to one another in the array, that less than fifty percent (50%) of the LED chips in the first group of LEDs is on the perimeter of the array, and at least three LED chips from the one or more additional groups is adjacent each of the LED chips in the first group.

Abstract: The preferred embodiment the invention proposes pertains to a light source system structure, claimticularly referring to a multiple light-source source packaging structure, which is comprised of a surface wrapped with a multiple number of packagers, and inside the packagers is a placement space, and the surface of the packager is of a smooth surface; a micro-Fresnel lens unit, which is mounted in the placement space, and the micro-Fresnel lens unit is comprised of a multiple number of encircling micro-Fresnel lenses, with a concave slot located at the center of the encircling micro-Fresnel lens unit and a light source mounted beneath the concave slot, where the light created from the light source can be deflected and projected through the micro-Fresnel lens unit, through which to further control the angle of each light beam, together with a circuit control switch linked to the light source to further control the distance of light projection from the multiple number of packagers, enabling the distance of proje

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: A light fixture has an array of light emitting diodes arranged on a substrate, an array of lenses arranged adjacent the diodes, each lens corresponding to a diode, and having a center, the array of lenses arranged such that the each lens center is offset from a location of the diode. A light fixture has an array of light emitting diodes arranged in a x-y grid on a substrate, and an array of lenses arranged adjacent the array of light emitting diodes, each lens corresponding to a diode and having a center, the array of lenses arranged such that each lens center is offset a distance along a location axis of the diode. A method includes providing a substrate, forming an array of light emitting diodes on the substrate, and arranging an array of lenses adjacent the diodes, such that each lens corresponds to one diode, the lenses arranged such that a center of each lens is offset from a location of each diode.

Abstract: An optical sheet has a large number of cylindrical lens elements provided successively on one of principal faces thereof. The cylindrical lens elements have a finite focal distance on the emission side of illumination light and have an aspheric face of a leftwardly and rightwardly symmetric sectional shape. Where a Z axis is taken in parallel to a normal line direction to the optical sheet and an X axis is taken in a direction of the row of the cylindrical lens elements, a cross sectional shape of the cylindrical lens elements satisfies Z=X2/(R+?{square root over ( )}(R2?(1+K)X2))+AX4+BX5+CX6+ . . . (where R is the radius of curvature of a distal end vertex, K is a conic constant, and A, B, C, . . . are aspheric coefficients).

Abstract: An LED light bulb where the LED light bulb itself is molded into various shapes. The plastic lens used to surround the diode is shaped when manufactured to resemble various items, such as stars, crosses, hearts, trees, pinecones, bulbs, flat panels with designs, or any other shape the user desires. Because the entire light bulb is the LED, uniform and consistent light can be emitted from every part of the plastic lens that makes up the shaped LED light bulb, allowing the user to view the shaped LED light bulb from any angle. The shaped LED light bulb can be used individually, or strung together to form a strand of shaped lights.

Abstract: A plurality of LEDs are arrayed in the X-direction, and a light-guide plate is provided facing the LEDs. A plurality of prisms extending in the Y-direction are formed on a light-receiving surface of the light-guide plate. A plurality of prisms are additionally formed on a light-emitting surface of the light-guide plate. Light emitted from the LED is thereby divided into a plurality of light beams by the prisms, and a portion of the light is condensed toward the prisms. Light that is condensed toward the prisms is divided in a plurality of directions and transmitted in the light-guide plate. When the light reaches another prism, the light is reflected by the prism and emitted from the light emitting surface.

Abstract: A luminaire is provided with a one-sided diffuser, located a predefined distance below the light output ports, in order to efficiently distribute light through an upper smooth surface and a lower surface having light altering tracks where each wherein each light altering tracks distributes its received light over a range of angles within a predefined cutoff angle.

Abstract: A light projection device of a stack of at least 2 LED light projection modules. Each module shares a common optical axis and each includes an LED at least partially surrounded by an off-axis collimating optic and each projects a radially collimated canted beam towards and onto. There is a refracting plate for redirecting and changing the angle in respect to the optical axis of at least one of the radially collimated canted beams.

Abstract: A light emitting device including a substrate, a plurality of light sources and a lens array is provided. The light sources and the lens array are disposed on the substrate, and the light sources are arranged to a polygon. The lens array includes a plurality of first lenses and a plurality of second lenses. The first lenses surrounded by the second lenses cover the light sources and respectively correspond to one of the light sources.

Abstract: A work light for work or task areas which uses light-emitting diodes (LEDs) as the source of light. LED clusters are mounted on a circuit board which is located in a housing. The LED work lights may be powered by 3.6 volt, 4.8 volt, or 6.0 volt sources.

Abstract: A lighting device for vehicle include a housing body, an outer lens provided on the housing body, a decorating wall provided between the housing body and the outer lens and a plurality of light emitting devices which are provided between the housing body and the decorating wall and disposed with intervals to each other. The decorating wall includes a plurality of light transmitting portions, each of which is disposed to face each of the plurality of light emitting devices. The light transmitting portion is disposed to set light emitted from the corresponding light emitting device within a range of a predetermined light distribution angle.

Abstract: A lamp assembly including a plurality of light sources, a plurality of light guides, and at least one lens. The plurality of light guides are optically connected to the plurality of light sources, and selected plurality of light sources emit light that is selectively propagated through the plurality of light guides. The at least one lens is optically connected to the plurality of light guides.

Abstract: A back-light source comprises a plurality of light-emitting devices, each light-emitting device having a light-emitting package and a lens surface. In at least some of the light emitting devices, the radius of curvature in one direction of the lens surface is different from the radius of curvature in another direction such that one of the radii of curvature of the lens is greater than the other radius of curvature. In particular, one radius of curvature is equal to or smaller than half the length of the device. The other radius of curvature is equal to or greater than half the length of the device. As such, the lens has different focal lengths in different directions. The light-emitting package can have a plurality of light-emitting sources of a single color or of different colors.

Abstract: Lighting elements include light emitting diodes mounted on a circuit board with a lens assembly that may be positioned substantially near the light emitting diode to allow light from the light emitting diode to pass through a lens portion of the lens assembly. The lens assembly includes a connecting base piece to detachably connect the lens assembly to the circuit board. A method of connecting a lens to a circuit board may also include placing a lens assembly including the lens over a light emitting diode and detachably connecting the lens to the circuit board by detachably connecting a base piece of the lens assembly to the circuit board.

Abstract: An illuminating device capable of being produced at low costs and irradiating rays of light uniformly to a liquid crystal panel. The illuminating device has a plurality of LED packages each having LED's and a lens, the LED packages being congregated on a plane in a large area. Each of the LED packages includes at least four LED's corresponding to LED's for emitting at least red, green and blue, and at least two of the LED's in each LED package are positioned symmetrically to the center of the lens and emit the same color.

Abstract: The present invention relates to an apparatus for emitting light, comprising linearly arranged devices for radiating light. According to the invention, modular elements are provided which carry the devices for radiating light. The modular elements each carry one device for radiating light and can each be installed and replaced separately in the apparatus for emitting light. This facilitates simpler maintenance of the apparatus. According to a further aspect of the invention, a cooling system is provided to increase the life of the apparatus. According to a further aspect of the invention, a special diaphragm and a diffuser are provided in order to generate a more efficient light output or a more efficiently bundled light beam.

Abstract: A backlight assembly includes at least one U-shaped lamp, a first connecting member, and a second connecting member. The U-shaped lamp includes a U-shaped lamp tube, a first external electrode covering a first end portion of the U-shaped lamp tube, and a second external electrode covering a second end portion of the U-shaped lamp tube. The U-shaped lamp tube generates light when a first driving voltage is applied to the first external electrode and a second driving voltage is applied to the second external electrode. The first connecting member is electrically connected to the first external electrode for applying the first driving voltage to the first external electrode. The second connecting member is electrically connected to the second external electrode for applying the second driving voltage to the second external electrode. Therefore, interference between a wire for applying power to the U-shaped lamp and the U-shaped lamp is reduced.

Abstract: An LED-based light for replacing a conventional fluorescent tube in a fixture is provided. The LED-based light includes an elongate light transmitting rod defining a bore and at least one LED positioned at one or both ends of the rod and oriented to produce light longitudinally into a portion of the rod radially outward of the bore. At least one connector is physically coupled to an end of the rod and electrically coupled to the at least one LED. The at least one connector is adapted for physical and electrical connection to the fixture. In operation, the directional light produced by the at least one LED is dispersed by way of reflection, refraction, and/or diffusion while traveling longitudinally through the rod to reduce the appearance of bright spots.

Abstract: A backlight assembly for a liquid crystal display device is disclosed with high efficiency and high brightness. The backlight assembly includes a light source in which a first light emitting diode and a second light emitting diode are combined, a board where the light source is mounted, and optical sheets arranged in front of the light source. By alternately arranging a front emitting type LED and a side emitting type LED in various structures, high efficiency and high brightness may be obtained using a small number of light emitting diodes.

Abstract: A light-directing apparatus for off-axial preferential-side distribution of light from a light emitter having an emitter axis, including a lensing member positioned over the light emitter a shield member embedded within the lensing member in a position in the path of light emitted toward a non-preferential side. The lensing member having a proximal end substantially transverse the emitter axis and an outer surface configured for refracting light from the emitter. The shield member may be snugly received in a shield-receiving void of an inner surface of the lensing member. Alternatively, the shield member is embedded by the lensing member having been molded thereabout. Another aspect of this invention is a lighting fixture utilizing such light-directing apparatus.

Abstract: An illuminating unit comprising a luminous means (5) and an optical element (1) that has a radiation entrance surface (2) facing the luminous means (5) and a radiation exit surface (3) averted from the luminous means (5). The optical element (1) has at least one holographic element (4) that is designed as a beam shaping element for the radiation (7) emitted from the luminous means (5).

Abstract: In one form, there is a luminaire for providing uniform color and brightness from multiple small light sources, which includes a shallow plate of transparent material having a first surface which is substantially flat, and a second surface which includes patterned planes acutely disposed to the first surface. Each second surface is adjacent to an entry face into which light from the multiple small light sources is projected into the plane.

Abstract: A planar light source device having excellent in-plane uniformity of brightness includes an illuminator having an array of light sources, a light transmission plate in an optical path of light output by the illuminator, and a plurality of refractive diffusing elements on the light transmission plate, each refractive diffusing element providing more than two refractive surfaces in at least one vertical cross-section along the optical path at an angle determined in accordance with a pattern of the array of light sources. Each refractive diffusing element may be a polygonal prism or a microlens.

Abstract: In a Fresnel lens which is made of a lens material whose refraction index is n, and focuses light beam from a light source at a specified radiation view angle ?, and has plural N pieces of circular lens surfaces arranged concentrically around a common optical axis, and plural circular rise surfaces arranged adjacent alternately between these lens surfaces, and two lens surfaces adjacent via at least one of the rise surfaces are concave surfaces, and tangent lines and at the intersecting point with the rise surfaces of the shape of a cross section passing through the optical axis of those lens surfaces intersect at the outside with respect to the optical axis, and when the angle formed between these tangent lines is defined as ?, a relational equation ???/(2 n N) stands.

Abstract: A light-emitting device, comprising at least a first light source (101) and a second light source (102) is provided. The light source further comprises a first collimating means (111) for collimating light from the first light-source and a second collimating means (112) for collimating light from said second light source wherein the output areas of the collimating means at least partly overlaps. A light guiding means (107) is arranged between said light sources and said collimating means for guiding light from the first light source to the first light collimating means, and from the second light source to the second collimating means. A light-emitting device of the present invention can provide well mixed and collimated light even though there is a distance between the light sources and the collimating means.

Abstract: A light projection device of a stack of at least 2 LED light projection modules. Each module shares a common optical axis and each includes an LED at least partially surrounded by an off-axis collimating optic and each projects a radially collimated canted beam towards and onto. There is a refracting plate for redirecting and changing the angle in respect to the optical axis of at least one of the radially collimated canted beams.

Abstract: An illumination system has linear array of light emitters (R, G, B, A, W) associated with it least one linear array of outcoupling means (O1, O2, O3, . . . ) for coupling light out of the illumination system. Each linear array of outcoupling means is arranged parallel to the linear array of light emitters. For each linear array of outcoupling means, a configuration of the outcoupling means and a configuration of the light emitters fulfill the requirement: NCU×NLC=NOU×NLO, wherein NCU is the number of clusters (C1, C2, C3, . . . ) per unit (U1, . . . ), NLC is the number of light emitters in each of the clusters, NOU is the number of outcoupling means per unit, NLO is the number of light emitters per outcoupling means. A “cluster” is the smallest repetitive collection of light emitters forming the linear array of light emitters. A “unit” is the smallest number of adjacent clusters repetitive with respect to the outcoupling means and with respect to the light emitters.

Abstract: Light shades and lighting systems that create a spectral effect when a lighting element is illuminated within the shade, and features that reflect light originating within the shade. Embodiments of the invention incorporate hollow body having a diffraction grating thereon and an internal cavity to retain one or more lighting elements, and in some instances, to also retain one or more lengths of conductor.

Abstract: A backlight module (20) includes a light guide plate (23), a reflecting member (21) and a plurality of light source (22). The light guide plate has a light incidence surface (231) and a light-emitting surface (232) opposite to the light incidence surface. The reflecting member faces the light incidence surface of the light guide plate. The light sources are arranged between the reflecting member and the light guide plate. The light guide plate defines a plurality of hollow structures (25) therein corresponding to the light sources and has a plurality of microstructure units (27) defined on the light incidence surface corresponding to the light sources.

Abstract: A headlight having a multitude of headlight elements, which each have at least one semiconductor chip which emits electromagnetic radiation; a primary optics element, which reduces the divergence of the light which is incident through the light input; and at least one headlight element output, which emits a part of the headlight light from the headlight element. At least some of the headlight element outputs are arranged in at least two groups in such a way that the arrangement of at least one of the groups and/or at least overall arrangement of headlight element outputs of multiple groups corresponds essentially to a desired emission characteristic of the headlight, in that, in particular, it has a shape which corresponds essentially to the cross-sectional shape of a desired headlight beam, wherein the semiconductor chips which belong to the headlight element outputs of one group can each be operated independently of other semiconductor chips.

Abstract: A solid-state light source (10) comprising a plurality of LED units (12) arrayed to emit light generally about an axis (14). Each of the LED units (12) can comprise a number of LEDs, for example, up to five. They may all emit in a single color or multiple colors can be combined for a specific effect. A light transmissive light guide (16) is associated with the LED units (12) and has a plurality of input widows (18). Each LED unit (12) faces a respective input window (18) and each window (18) transversely intercepts the axis (14) and receives light from the LED units (12). The input windows (18) lead to a common output window (20) that is axially aligned with the input windows (18). The light guide (16) has smooth sidewalls (22) that extend between the input windows (18) and the output window (20).

Abstract: A light-emitting diode light source system includes a plurality of light-emitting diode modules for providing light beams; a light-combining unit including a plurality of light incident sides and a light emerging side, the light beams from the light-emitting diode modules entering the light-combining unit via the light incident sides, respectively, and emerging out of the light-combining unit via the light emerging side; a plurality of primary lens units disposed between the light-emitting diode modules and the light incident sides, respectively; a secondary lens unit disposed to confront the light emerging side; and a focusing lens disposed adjacent to the secondary lens unit, the secondary lens unit being disposed between the light-combining unit and the focusing lens, the light beams from the light-emitting diode modules passing through the primary lens units, the light-combining unit, the secondary lens unit and the focusing lens to be projected onto a light valve.

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: A high efficiency, broad beam lighting device 30 having a converging lens 1 having a curved focal line 26. A source of light comprising a plurality 9 of ceramic LED lamps disposed in an equiangular array having their apparent emission line between minimum divergence curved line 37 and interior surface 27 of converging lens 1 on broad beam curved line 39 such that each LED has its emitted light concentrated by lens 1 into an elongated light beam comprising a central zone substantially surrounded by a peripheral zone. Converging lens 1 further concentrates the light emitted by plurality 9 of LED lamps into a composite elongated light beam having a broad vertical beam spread and concurrently increasing the intensity at the location of the central zone of the elongated light beam of each LED by adding to that central zone location light from the elongated light beam of at least one adjacent LED.

Abstract: A vehicular lamp unit including a flat-surfaced light source module and a projection lens that projects the image of light emitted from the light source module to the front as an inverted image. The light source module is comprised of a substrate and a light-emitting diode element disposed on the substrate and is formed therein with a subwavelength grating that reduces the reflection of light; and the formation density of the subwavelength grating is varied from position to position so as to vary the distribution of light emission intensity in the inverted image projected to the front.