Abstract: A light source module includes a light source and an optical lens facing the light source. The optical lens includes a light incident face facing the light source, a light emitting face opposite to the light incident face, and a connecting face connecting the light incident face and the light emitting face. The connecting face is planar. The light emitting face includes a lateral face extending upwardly from an outer periphery of the connecting face and a top face located above the light incident face. The top face of the light emitting face comprises a center curved facet and a periphery curved facet surrounding and extending outwardly from the center curved facet. The light incident face is a discontinuous face and includes a plurality of curved facets.

Abstract: A lens includes a bottom face, a light incident face defined in the bottom face, a light emerging face opposite to the bottom face and a lateral face connecting the light emerging face with the bottom face. An optical axis extends through centers of the light incident face and the light emerging face. The light emerging face includes a plurality of sub-light emerging faces discontinuous from each other. Each sub-light emerging face has a concave face adjacent to the optical axis, and a convex face away from the optical axis.

Abstract: An optical element includes a lens and a light diffusion layer formed on the lens. The lens includes a light incident face and a light emerging face. The light emerging face includes a concave face opposite to the light incident face and a convex face surrounding the concave face. The convex face is covered by the light diffusion layer. The concave face is exposed outside the light diffusion layer. A method for manufacturing the optical element is also disclosed.

Abstract: A lens includes a main lens, a first light-diffusion capping layer and a second light-diffusion capping layer formed on the top of the main lens in sequence. The main lens includes a light incident surface and a light exit surface opposite to the light incident surface. The main lens defines a recess in the top thereof, and the recess is located at a central region of the light exit surface and recessed inwardly toward the light incident surface. The first and the second light-diffusion capping layers are received in the recess, and the second light-diffusion capping layer is located over the first light-diffusion capping layer. A refractive index of the first light-diffusion capping layer is smaller that that of the main lens but larger than that of the second light-diffusion capping layer. A backlight module source incorporating the lens and the LED light source is also provided.

Abstract: A lens for a backlight of a display device, includes a lower surface, a groove portion defined recessed from the lower surface and comprising a curved surface; and an upper surface comprising an outer edge and a center, in a plan view, of which a distance from the lower surface decreases in a direction from the outer edge to the center.

Abstract: The present disclosure relates to a lens. The lens includes a bottom surface, a light input surface and a light output surface. The light input surface is a curved surface depressing from a center of the bottom surface. The light output surface is opposite to the bottom surface. The light output surface includes a planar surface located at a center thereof and a convex surface located at peripheral thereof and surrounding the planar surface. The planar surface includes a plurality of micro structures located at a central area thereof. The present disclosure also relates to a light source module with the lens.

Abstract: A light source module includes a light source, an optical lens facing the light source, and a plurality of diffusing particles formed in the optical lens. The optical lens includes a light incident face facing the light source, a light emitting face opposite to the light incident face, and a connecting face connecting the light incident face and the light emitting face. The connecting face is planar. The light emitting face includes a lateral face extending upwardly from an outer periphery of the connecting face and a top face located above the light incident face. The top face of the light emitting face comprises a first curved facet and a second curved facet surrounding and extending outwardly from the first curved facet.

Abstract: An optical film has a plurality of aligned convex microlenses, each of which has a region ? and a region ?, region ? forming the outer part of the convex shape of the microlens and positioned so as to cover region ?. Both region ? and region ? contain a resin, and the refractive index of the resin in region ? is higher than the refractive index of the resin in region ?; region ? contains fine particles, and region ? contains fine particles, and the content of the fine particles contained in region ? is lower than the content of the fine particles contained in region ?; or region ? contains fine particles, and region ? contains fine particles, and the content of the fine particles contained in region ? is higher than the content of the fine particles contained in region ?.

Abstract: A LED luminaire includes a body portion having a lighting module and an optical structure formed integrally with the body portion. The optical structure is formed within the body portion and located in a light-projection direction of the lighting module. The optical structure substantially is a sheet-like structure with a first surface and a second surface. The first surface has at least two side portions with a first curvature, and the second surface has a second curvature. The first curvature is greater than the second curvature. Thereby, the view angle of the light is increased as the light generated from the lighting module passes through the optical structure.

Abstract: A light source module includes a light source and an optical lens facing the light source. The optical lens includes a light incident face facing the light source, a light emitting face opposite to the light incident face, and a connecting face connecting the light incident face and the light emitting face. The connecting face is planar. The light emitting face includes a lateral face extending upwardly from an outer periphery of the connecting face and a top face located above the light incident face. The top face of the light emitting face includes a center facet facing the light incident face, a first curved facet surrounding and connecting to the center facet, and a second curved facet surrounding and smoothly connecting to the first curved facet.

Abstract: A light source module includes a light source and an optical lens facing the light source. The optical lens includes a light incident face facing the light source, a light emitting face opposite to the light incident face, and a connecting face connecting the light incident face and the light emitting face. The connecting face is planar. The light emitting face includes a lateral face extending upwardly from an outer periphery of the connecting face and a top face located above the light incident face. The optical lens further includes a plurality of protrusions protruding outwardly from the light emitting face, and a plurality of grooves defining in the connecting face. The protrusions are formed on the lateral face and located adjacent to the connecting face, and the grooves are located adjacent to the lateral face.

Abstract: Implementations disclosed herein include optical sheets comprising one or more regions including one or more optical elements. Each of the one or more optical elements includes a plurality of microstructures. The one or more optical elements can be configured to tailor the radiation pattern output from a source of illumination. The one or more optical element can be further configured to impart a visual appearance to the optical sheet that is different from a standard lenticular or prismatic sheet. In various implementations, the one or more regions can be demarcated from each other or the surrounding by borders. The borders of the one or more regions can be configured to form one or more letters, one or more symbols or logos for identification and/or security purposes. Various implementations of the optical sheet can include nano-particles in addition to the optical elements to enhance the aesthetic quality of the optical film.

Abstract: A lens includes a first lens section and a second lens section, which are integrally formed. The first lens section is formed in a hemispherical shell shape including a first recess opened toward one side of an optical axis direction in which light from a light source is made incident. The second lens section is formed in a hemispherical shell shape including a second recess opened toward the other side of the optical axis direction.

Abstract: Provided are a light source assembly and a backlight assembly including a lens module. The light source assembly includes: a light source module capable of emitting light and a lens module positioned on the light source module. The lens module includes a light collecting lens collecting the light emitted from the light source module, and a diffusion lens positioned on the light collecting lens, and including an inner curved surface in which light from the light collecting lens is incident and an outer curved surface where the light incident on the inner curved surface exits the diffusion lens, and the light emitted from the light source module forms a light collecting region on the inner curved surface by passing through the light collecting lens.

Abstract: The present invention discloses an LED lens and a light source device using the same. The light source device includes the LED lens and a LED. The LED lens comprises a light incident surface, a light emitting surface, and a bottom surface. The light emitting surface includes a recession portion disposed at the central thereof and a convex portion connected to the recession portion. The light incident surface is a concave surface and comprises a first optically active area and a second optically active area. The first optically active area is disposed at the central of the light incident surface; the second optically active area is connected to the first optically active area and the bottom surface. At the junction between the first optically active area and the second optically active area, it is an optical path inversion point that is disposed satisfying specific condition.

Abstract: An exemplary lens for regulating light of an LED includes a light guiding portion and a latching portion extending downwardly from the light guiding portion. The light guiding portion includes a top surface and a bottom surface opposite to the top surface. A center of the bottom surface is depressed toward the top surface to form an optical concave. The latching portion is formed at the bottom surface and located around the optical concave surface. The latching portion defines an engaging hole to fittingly receive the LED therein. A light source module having the lens is also provided.

Abstract: A light source module includes a light source and an optical lens facing the light source. The optical lens includes a light incident surface facing the light source, and a light emitting face opposite to the light incident face. The light emitted from the light source is entered into the optical lens from the light incident face, and exited from the light emitting face. A refractive index of the optical lens gradually decreases along a direction from the light incident face to the light emitting face of the optical lens.

Abstract: Embodiments of a lens element have a body that incorporates geometry that defines features for surfaces that receive and transmit light, e.g., from a light emitting diode (LED) device. These features include, for example, curves, bends, arcs, and like curvilinear objects and/or shapes. These embodiments employs these features to change the direction of light that transits the body. These changes can reflect, refract, and/or re-direct light, thus rendering light that emits from the lens element with one or more light distributing characteristics. In one embodiment, the body comprises a cavity with an inner surface that has a first section and a second section that curve, respectively, with positive concavity and with negative concavity relative to the LED device.

Abstract: Optical and thermal splines are integrated in the external envelope of a non-planar lamp allowing the optical output of discrete light sources such as LEDs to be distributed for uniform output and the achievement of desired light distributions such as omnidirectional output. Integrated thermal splines and perimeter location of light sources allow for improved thermal management without significantly compromised optical performance.

Abstract: A light source module includes a light source and an optical lens facing the light source. The optical lens includes a light incident surface facing the light source, and a light emitting face opposite to the light incident face. The light emitted from the light source is entered into the optical lens from the light incident face, and exited from the light emitting face. A refractive index of the optical lens gradually decreases along a direction from the light incident face to the light emitting face of the optical lens.

Abstract: Optical and thermal splines are integrated in the external envelope of a non-planar lamp allowing the optical output of discrete light sources such as LEDs to be distributed for uniform output and the achievement of desired light distributions such as omnidirectional output. Opposing orientation of light sources is utilized to create integrated optical and thermal splines for improved thermal and optical performance.

Abstract: A lens includes a bottom face, a light incident face formed in the bottom face, a light emerging face opposite to the bottom face and a lateral face formed between the bottom face and the light emerging face. A light diverging protrusion is formed on the light incident face. The light diverging protrusion has a conical face gradually shrinking away from the light emerging face. An LED unit incorporating the lens is also disclosed.

Abstract: Light flux controlling member (140) includes: light controlling emission surface (141) for controlling the distribution of light emitted from light emitting element (130); back surface (143) that is positioned on a side opposite light controlling emission surface (141); boss (145) that is formed on back surface (143) side; and annular concave part (146) that is formed in the vicinity of a base end of boss (145). Annular concave part (146) has inside surface (146a) that is smoothly connected to an outer peripheral surface of the base end of boss (145) and that has an arc-shaped cross-section in an axial direction of boss (145).

Abstract: A lighting apparatus with uniform illumination distribution, according to various embodiments, can include a lens for area lighting. In one embodiment, the lens comprises a plurality of cross-sections identified by a thickness ratio defined at different angles. The thickness ratio is determined relative to the thickness of the cross-section defined at a center angle of the lens. In another embodiment, the lighting apparatus with uniform illumination distribution includes a lens having an inner surface and an outer surface. A profile of the inner surface and the outer surface is composed of a plurality of piecewise circular arcs defined with radii and circle centers. The lens is formed as a complex curve lens by joining the piecewise circular arcs of the inner surface and the outer surface.

Abstract: A lens includes a first optical layer, a second optical layer covering the first optical layer and a third optical layer covering the second optical layer. The first optical layer has a light refractive index larger than that of the second optical layer. The second optical layer has a light refractive index larger than that of the third optical layer.

Abstract: A lens plate and an illumination lamp which are not affected by heat from a light source even if the lens plate is small. The lens plate for an illumination lamp has the lens part covering the light source, and the lens part is formed in such a way that a concentric lens pattern is separately formed on an outer central part and an inner peripheral part so as not to be overlapped.

Abstract: An LED lens and a light emitting device using the same are disclosed. The LED lens comprises a light incident surface, a light emitting surface, and a bottom surface. The light emitting surface includes a first recession portion disposed at the central thereof and a protrusion portion connected to the outer periphery of the emitting recession portion. The light incident surface comprises a first optically active area and a second optically active area. The first optically active area is disposed at the central of the light incident surface, and has a second recession portion; the second optically active area is a concave surface connected to the first optically active area. The LED lens satisfies specific conditions. The LED lens distributes a light beam emitted from the light emitting device to form an even light pattern.

Abstract: A lens includes a light incident face, a light exit face opposite to the light incident face and a plurality of annular stepwise portions formed on the light exit face. The stepwise portions are located at or near a periphery of the light exit face and each stepwise portion has an annular flat surface. A plurality of micro patterns are arranged on the flat surface of one stepwise portion to scatter light exiting from the periphery of the light exit face. A light source module incorporating the lens is also provided. The light source module includes an LED light source. Light from the LED light source enters the lens from the light incident face and leaves the lens from the light exit face after the light is divergently refracted by the lens.

Abstract: A lens includes a light incident face receiving light from an LED light source, a light exit face, and a connecting face interconnecting the light incident face and the light exit face. The light exit face is a convex face. The connecting face includes a plurality of inclined reflecting planes located at a circumferential periphery of the lens and extending downwardly and inwardly from a position near to an outer edge of the light exit face toward the light incident face. The inclined reflecting planes of the connecting face are positioned around an optical axis of the lens. An LED light source module includes a plurality of the lens each diverging light from a corresponding LED light source and a light diffuser having a plurality of light diffusing units each over a corresponding lens. Each light diffusing unit has a shape of the regular hexagon.

Abstract: A lens includes a bottom face, a light incident face defined in the bottom face, a top face and four lateral faces interconnecting the top face and the bottom face. Each lateral face is perpendicular to two adjacent lateral faces, and parallel to an opposite lateral face. An LED unit incorporating the lens is also disclosed.

Abstract: A lens includes a first optical layer, a second optical layer and a third optical layer sequentially stacked. The third optical layer has a light refractive index larger than that of the second optical layer, and the second optical layer has a light refractive layer larger than that of the first optical layer. A method for making the lens is also provided.

Abstract: This invention discloses an infrared light-emitting diode. The infrared light-emitting diode comprises: only one core for emitting infrared light; a packaging body which at least comprises a first surface that is convex and in front of the core and a second surface that is plane and on one side of the core; and leads connected to the core and extending to outside of the packaging body; wherein the infrared light emitted by the core forms at least two beams of infrared light in different directions after being emitted from the packaging body through the first surface and the second surface. With such infrared LED and the touch screen, touch system and interactive display based on the LED, at least two beams of infrared light in different directions can be emitted requiring only one core.

Abstract: A lens includes a base and a protrusion formed on the base. The base defines a light incident face in a bottom face thereof. The protrusion forms a light emerging face at an outside face thereof. The light emerging face includes a freeform face, a first side face, a second side face, a third side face and a fourth side face. The freeform face, the first side face and the second side face diverge light along a first direction, and the freeform face, the third side face and the fourth side face converge light along a second direction. Thus, a rectangular light pattern is obtained.

Abstract: In an illuminating device, when exiting lights come out from a lens sheet, the optical paths of the exiting lights are deflected in a direction opposite to an optical axis of a light source by means of a plurality of prisms which are included in a first lens group arranged on an inward side of the lens sheet located adjacent to the optical axis of the light source and each of which has a inclined face facing toward the optical axis of the light source, wherein the exiting lights from the light source via the first lens group of the lens sheet are adapted to mix with exiting lights from the light source via a second lens group located outside the first lens group, whereby the degree of color unevenness is reduced, that appears inherently when a pseudo white LED is used as the light source of the illuminating device.

Abstract: The high sag thick lens is for use in an illumination apparatus, such as a solid state light source. The lens is made of a first lens part having an optical active surface and a series of elongated baffles, the baffles having a top portion, the top portions defining a line that follows the curvature of the optical active surface to create a second lens part of uniform thickness. A second lens part is fused to the first lens part to create the lens. The second lens part has an optical active surface and a series of elongated baffles, the baffles having a thickness comparable to the thickness of the corresponding optical active surfaces. The first and the second baffles are intertwined along the entire length of their lateral surfaces.

Abstract: Disclosed is an optical lens having an incident surface on which the light emitted from a light emitting diode is incident and having a concave portion into which the light is received and an emitting surface emitting the light incident on the incident surface therethrough, the optical lens including: a plurality of refraction prevention portions protruded unitarily from the emitting surface to allow the light around a light axis emitted through the emitting surface to travel straight, without having any refraction, each refraction prevention portion having an orthogonal surface formed thereon to the advancing direction of the light incident through the incident surface.

Abstract: An optical element is provided. When in a xz cross section, an angle which a ray travelling from the origin at ?r forms with the normal to the light receiving surface is designated as ?x, an angle which a ray travelling from b in the z axis direction forms, after the surface, with the z axis direction is designated as ?ib, in a yz cross section, an angle which a ray travelling from the origin at ?r forms with the normal to the light receiving surface is designated as ?y, angles which a ray travelling from a in the z axis direction forms, after the light receiving and exiting surfaces, with the z axis direction are designated as ?ia and ?ea, and an angle which a ray travelling from the origin at arc tan(a/ha) forms, after the light exiting surface, with the z axis direction is designated as ?eha, ?y>?x (0<?r<60°) ?eha>45° ?ea>45° ?ia>?ib are satisfied.

Abstract: In an example embodiment, a light fixture is provided that includes an enclosure with an aperture plane and two or more linear light emitting diode (LED) arrays configured to mount within the enclosure on LED array mounting features that are oriented at an angle between about 80 degrees and about 135 degrees relative to a back surface plane of the enclosure. The light fixture may further include a lens with an axis of symmetry defining two opposing lens halves that define substantially planar outer portions and curved inner portions. The two lens halves may be configured to intersect or join in proximity to the axis of symmetry that is disposed parallel, and above or in proximity to the two or more linear LED arrays. The outer edges of the substantially planar outer lens portions are disposed in proximity to opposing edges of the aperture plane of the enclosure.

Abstract: A vehicle headlight can form a predetermined high-beam light distribution pattern, while being capable of causing the chromaticity of the entire light distribution pattern to fall within a white range (JIS D5500). The vehicle headlight can include: a projection lens that can control light incident on its light incident surface at a first incident position near its optical axis to be directed in a direction not parallel to the optical axis, can control light incident at a second incident position away from the optical axis to be directed in a direction parallel to the optical axis, and can control light incident at an incident position between the first and second incident positions to be directed in a direction closer to the direction parallel to the optical axis as the light is incident at an incident position closer from the first incident position to the second incident position.

Abstract: A housing for an illuminating apparatus may include: two housing portions assembled together, and a transparent cover, the two housing portions and the transparent cover jointly defining a cavity, wherein a transparent separator is provided in the cavity for separating the cavity into an assembling cavity and an isolated cavity sealed with respect to each other, wherein the assembling cavity is configured to mount a plurality of lighting assemblies of the illuminating apparatus, and the isolated cavity is defined jointly by the transparent cover and the separator.

Abstract: An optical lens, light emitting device, and lighting device are provided.

Abstract: A lens includes a main body and a potting material. The main body includes a first major face, a second major face and at least one cavity arranged on the first major face. The potting material is arranged in the cavity and includes at least one diffuser which scatters radiation of at least one wavelength range.

Abstract: A lens for a linear light source may include a top and a bottom, the bottom including an incident surface, and a first supporting surface and a second supporting surface respectively at each side of the incident surface, and the top including an emergent surface, wherein the top further comprises a total internally reflective surface, and wherein in a cross section, the emergent surface is joined with the first supporting surface, the total internally reflective surface is joined with the second supporting surface, one part of light from the linear light source incidents into the incident surface and emerges after refracted by the emergent surface, and the other part of light incidents into the incident surface and reflected by the total internally reflective surface and then emerges after refracted by the emergent surface.

Abstract: A lens cap (3) is arranged to cover a light-emitting surface (23) of a light source (2), the lens thereby guiding light from the light source (2) in oblique directions relative to the light source (2). The lens cap (3) includes, in a planar view, a light transmitting region (33) and a light blocking region (34), the light transmitting region (33) divided into a plurality of light transmitting regions by the light blocking region (34) so that the light from the light source (2) passes through the plurality of light transmitting regions (33) and is separated into beams traveling in different directions.

Abstract: A nonimaging light assembly for flashlights, including a light source and a lens symmetrical about an optical axis for receiving light from the light source and producing therefrom a light beam having concentrated and divergent components resulting in a high intensity core beam surrounded by a smoothly transitioning lower intensity surround beam. In a preferred embodiment utilizing a light emitting diode as the light source, the combined light beam produced by the light assembly has a substantially circular cross section.

Abstract: A lighting component having an optic is provided. The optic includes a body formed from a plurality of partial elliptical bodies. Each partial elliptical body is substantially elliptical about a source focal point and a common focal point. Each source focal point for the partial elliptical bodies is disparately located and each common focal point for the plurality of partial elliptical bodies is collocated. The body of the optic has a common outlet proximate the common focal point and a plurality of source inlets where each source inlet of the plurality of source inlets is proximate the source focal point for a corresponding one of the plurality of partial elliptical tubes.

Abstract: A durable LED light engine includes an printed circuit board including LEDs mounted thereon positioned between a substantially U-shaped top enclosure and a bottom enclosure. Once assembled together using alignment holes and projections, the open spaces in the combination of the substantially U-shaped top enclosure, the printed circuit board and the bottom enclosure are filled with a plastic sealant. Once cooled, the plastic sealant holds the combination of the substantially U-shaped top enclosure, the printed circuit board and bottom enclosure together.

Abstract: Novel light diffusers that include both bulk and surface diffuser elements are provided. One embodiment includes diffusing elements forming a structured coating on a substantially clear substrate. Another embodiment includes a bulk diffuser with a structured surface. Methods for making and methods of using the light diffusers are also disclosed.

Abstract: A unitary optic member for directing light from a plurality of LED light sources on a board beneath the optic member, the optic member having a plurality of lens portions surrounded by and interconnected by a non-lens portion and comprising: a first molded polymeric layer forming (a) the non-lens portion and (b) an outermost layer of each of the lens portions, the outermost layer of each lens portion forming a pocket-space at such lens portion; and for each lens portion, a second molded polymeric layer overmolded onto the first polymeric layer within the corresponding pocket-space. The invention includes an LED light fixture with such a unitary optic member. Another aspect of the invention is a multi-layer polymeric lens for directing light from an LED light source, the lens defining a lens optical footprint and at least one of the polymeric layers being less than coextensive with the lens optical footprint.

Abstract: The present disclosure relates to an optical sheet for controlling the direction of light rays which is used for manufacturing backlight units of TFT-LCDs for computer monitors and televisions, and more specifically to an optical sheet which can uniformly diffuse light, improve brightness, and adjust viewing angle. There is provided an optical sheet for controlling the direction of light rays comprising a substrate film; a microlens group arranged on a first face of the substrate film; and a plurality of protuberances formed on a second face of the substrate film, wherein each protuberance comprises a reflective layer at the bottom thereof, and the plurality of protuberances comprise an aperture formed therebetween, and wherein a unit microlens of the microlens group has a first side and a second side with different radii of curvature from each other with respect to a light emission control part thereof.