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: In an embodiment, a light fixture is provided that includes a housing, a lens configured to mount to the housing, a plate, and a light source located inside the housing. The housing may include a top panel, a pair of side panels, and a pair of end panels. The lens may have a length shorter than a longitudinal length of the housing, thereby creating a gap between the lens and at least one end panel of the housing. The plate may be attached to one of the pair of end panels. The plate may include a flat portion that attaches to the end panel and an angled portion that is angled away from the end panel. The angled portion may cover the gap between the lens and the housing.

Abstract: An information system for displaying information, the system including a light source 2, an optical element OP having an optical axis to display information by directing light received at an entrance surface 5 from the light source through the optical element to an exit surface 6 for the light to exit the optical element, and, an absorber 10 to absorb sunlight entering the optical element at the exit surface. The system includes a reflector 12, 13 to reflect sunlight entering the optical element at the exit surface to the absorber 10 to absorb the reflected sunlight.

Abstract: A luminaire is disclosed having a lighting element mount which can have a base and one or more wings acting has heat dissipation fins. A lighting element (e.g. a PCB populated with LEDs) can be mounted (e.g. directly) to the base of the lighting element mount to conduct heat away from the lighting element. The lighting element mount can be incorporated into the luminaire so as to associate the lighting elements with apertures in the luminaire, thus allowing the lighting elements to be protrude to the bottom of the luminaire while the wings extend rearward of the luminaire and both the base and the wings of the lighting element mount are exposed to ambient air.

Abstract: A power-supply device including: a casing having a space therein and formed by metal stamping or having a thickness ranging from 0.3 to 3.0 mm; and a circuit board disposed inside the casing, wherein the casing includes a casing portion having an opening, and a cover portion disposed to cover the opening of the casing portion, the casing portion has a through hole formed at a position corresponding to a connector terminal connected to the circuit board, and the cover portion includes a storage portion bulging outward from the casing, the storage portion storing either one of an electronic component provided to a face of the circuit board which faces the cover portion and an electronic component provided across the circuit board.

Abstract: A light includes a body, a front housing secured to a front end of the body, a translating retainer rotatably engaged with the front housing, a slip ring positioned around the front housing and between the translating member and the front end of the body, a compressible ring positioned around the front housing and between the slip ring and the front end of the body, a lens mounted to the front housing, an electronic assembly, and a light emitting element in electrical communication with the electronic assembly and positioned within the lens. Rotation of the translating retainer in a first direction causes the translating retainer to drive the slip ring toward the front end of the body, compressing the compressible ring and causing the compressible ring to bulge outward to contact, and removably engage, an inner wall of a pipe or conduit that the light is positioned in.

Abstract: A light-diffusing layer is provided for diffusing incident light by diffracting at least a portion of the incident light, and the diffuse light diffused by the light-diffusing layer is diffused about a direction different from the emission direction of non-diffused light that passes through the light-diffusing layer without being diffused.

Abstract: A lighting system (100) is disclosed. The lighting system (100) comprises a light-emitting module (101) adapted to emit a light field (103) having a pre-defined uniformity of directionality and an optical element (102) arranged so as to receive a portion of the light field (103) emitted by the light-emitting module (101) and configured to output a modified light field (104) based on the received light field (103). The optical element (102) is separately arranged with respect to the light-emitting module (101) and configured to modify the light field (103) input into the optical element (102) such that light field (104) output from the optical element (102) has a changed uniformity of directionality with respect to the light field (103) emitted by the light-emitting module (101). An optical element (102) adapted to be included in the lighting system (100) is also disclosed.

Abstract: There is provided an optical sheet which can prevent problems when it is superimposed on another member. The optical sheet includes: a sheet-like base layer; a light control layer having unit shaped elements arranged in a direction parallel to a sheet surface of the base layer; and a light diffusing layer disposed between the base layer and the light control layer. The light diffusing layer includes a binder resin portion and particles dispersed in the binder resin portion. The particles in the binder resin portion include a single particle and an aggregate formed of aggregated single particles.

Abstract: Lighting arrangement (1, 1?) comprising a light source (2) for generating light; a spreading element (3) realised to laterally spread the generated light in a spreading plane (S), defined by an optical axis (AO) of the light source (2) and a longitudinal axis (L) of the spreading element (3), to give an essentially uniform quantity of light per unit area at an emission face (41, 51) orthogonal to the spreading plane (S) and parallel to the longitudinal axis (L) of the spreading element (3) and a light redirecting element (4, 5) arranged to collect the spread light, which comprises a longitudinal planar emission face (41, 51), and is realised to collect the laterally spread light and to emit the collected light essentially uniformly from the emission face (41, 51).

Abstract: Laser speckle reduction using a passive diffuser. A diffuser for reducing laser speckle is disclosed comprising a diffuser having a colloid configured for placement in a light path of a coherent light source. The colloid exhibits Brownian motion. The diffuser can be formed of transparent plates containing the colloid. In a system for illumination, a coherent source of light outputting a light beam along a light path is provided; and a diffuser for reducing laser speckle effects is placed in the light path, the diffuser comprising a colloid disposed in a container that is transparent to the light beam output by the coherent source. A method includes illuminating a photosensitive sensor, comprising transmitting a coherent light from a light source through a diffuser comprising a colloid and directing the light from the diffuser onto the photosensitive sensor. Additional embodiments are disclosed.

Abstract: A lamp comprises an optical lens. The lamp further comprises a self-locking trim ring including a plurality of teeth. The self-locking trim ring is disposed over the optical lens. The lamp further comprises a heat sink. The heat sink has an inner chamber wherein the optical lens is disposed in the inner chamber. The heat sink also has an outer chamber disposed radially outwardly from the inner chamber. The outer chamber has a recess that engages the plurality of teeth. The self-locking trim ring secures the optical lens to the heat sink.

Abstract: LEDs having a low color temperature up to 5000 K, comprising a blue-emitting LED and, connected upstream thereof, two phosphors having a first phosphor from the class of the chliorosilicates and a second phosphor from the class of the nitridosilicates having the formula (Ca,Sr)2Si5N8:Eu.

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: The present disclosure describes a compact spotlight that can change the area which it illuminates. The spotlight incorporates a wide angle light source, a catadioptric lens, and a bearing system for moving the catadioptric lens, the light source, or both. Movement of the light source relative to the catadioptric lens along the optical axis can change the beam diameter of the spotlight, while providing an acceptable illumination pattern.

Abstract: A device with a housing with a compartment formed with a first channel abutting one side of said compartment and a second channel, disposed opposite said first channel and abutting said compartment. A first light control is disposed in the first channel and has a portion extending from the first channel over the compartment and a second light control with a portion extending from said second channel over said compartment. A light source is disposed in the compartment and shines light through said first and second light control. The light source may be either a light emitting diode or a fluorescent lamp. The second light control may include a pattern disposed on said second light control which operates to disperse the light.

Abstract: An organic light emitting device including a first substrate, a second substrate parallel to the first substrate, and an organic light emitting unit disposed between the first substrate and the second substrate is provided. The first substrate has a plurality of first light guiding microstructures. A distribution density of the first light guiding microstructures is in a range of 100 to 2000 pcs/mm, wherein the first light guiding microstructures are located inside the first substrate and a material of the first substrate includes a photosensitive material.

Abstract: A securing unit is for securing a lamp shade to a bulb socket. The lamp shade includes a shade frame, and a coupler connected to the shade frame. The bulb socket is to be disposed in the lamp shade. The securing unit includes a connecting member and a securing member. The connecting member has an upper mounting segment, and a lower connecting segment disposed below the upper mounting segment and configured for connection to the bulb socket. The securing member includes a base part having opposite first and second surfaces, an engaging part extending from the first surface and engaging the upper mounting segment of the connecting member, and a resilient holding part extending from the second surface and configured to hold the coupler.

Abstract: An apparatus includes a framing projector with a light source and one or more focusing elements that focus light from the light source on a desired area of an object. The one or more focusing elements are to prevent light from the light source from lighting areas outside the desired area. The apparatus includes a projector housing. The framing projector is mounted inside the projector housing. The apparatus includes an electrical cord terminating at a plug configured to plug into an electrical outlet. The electrical cord provides power to the framing projector. The apparatus includes a stand coupled to the projector housing and/or the framing projector. The stand maintains the projector housing and framing projector in an upright position above a substantially horizontal surface when the stand is positioned on the substantially horizontal surface. The stand supports the projector housing and framing projector against gravity loading of the apparatus.

Abstract: An optical lens positioning system and method are provided that includes an illumination source, an optical lens, and a retaining mechanism having a plurality of alignment members that are displaceable in a first plane and resist being displaced in a second plane that is orthogonal to the first plane, wherein the plurality of alignment members are coupled to the optical lens to retain the optical lens proximate to the illumination source.

Abstract: The present disclose relates to light source device, which including a light source and a lens opposite to the light source. The lens includes a bottom surface, a light input surface, a top surface and a side surface. The light input surface depresses from the bottom surface towards a top surface of the lens. The light input surface is an aspheric surface. The top surface is opposite and parallel to the bottom surface. The side surface connects the bottom surface and the top surface. The side surface is a curved surface formed by rotating a curve line about the central axis of the lens. Light emitted from the light source enters the lens and is refracted by the side surface and the top surface of the lens to outside.

Abstract: In one embodiment, an optical lens assembly comprising a primary lens and an optical structure located at an outer portion of the lens is disclosed. The primary lens is configured to direct a substantial amount of light to a predetermined first distance whereas the optical structure is configured to direct light towards a second distance that is relatively close to the optical lens assembly compared to the first distance. Other embodiments disclose light-emitting devices and proximity sensors having such an optical lens assembly. Alternative embodiments of the optical lens assembly are disclosed, including but not limited to an optical structure defining an optical surface located at a lens flange and optical structure defining a light guide located at a base portion of the optical lens assembly.

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: A pillow optic array comprising a plurality of first order pillow optic elements arranged as a two-dimensional grid with a plurality of interstice spaces between adjacent first order pillow optic elements. Each of a plurality of second order pillow optic elements, located within respective interstice spaces. Pillow optic elements of the second order have a predetermined dimension that is less than a predetermined dimension for pillow optic elements of the first order. A ratio of a cross-sectional width of pillow optic elements to a cross-sectional height of pillow optic element is the same proportion for each order of pillow optic elements in the pillow optic array, the cross-sectional width being located in a plane along the pillow optic array and the cross-sectional height located in a plane vertical to the pillow optic array. The higher order pillow optic elements touching, about tangentially, a lower order pillow optic element.

Abstract: An object of the present invention is to provide a cheap, rapid, controlled, reproducible and polyvalent method for manufacturing a light emitting device with an internal source of light capable of achieving an enhancement in extraction efficiency. The invention proposes a method for manufacturing an optical layer for a light emitting device having an internal source of light and an optical layer separating the internal source of light and an external medium of light diffusion, wherein the method comprises the use of coherent electromagnetic radiation speckle lithography, such as laser speckle lithography, to make a nano/micro texturation on at least one surface of the optical layer.

Abstract: An illumination apparatus (10) for the generation of an illumination field (102) for an optoelectronic sensor (100) is provided which has at least one light source (12) and an illumination optics (14), in particular comprising a TIR lens (16) in order to guide the light of the light source (12) into the illumination field (102) in a directed manner, wherein the illumination optics (10) has a light entrance region (20), a light guidance region (22) having a jacket surface (24) and a light exit region (26) such that the light (28, 30) of the light source (12) is guided from the light entrance region (20) to the light exit region (26) in the illumination optics (14) by means of total reflection at the jacket surface (24). In this connection the illumination optics (10) has an adaptable optical beam forming element (18) at the light exit region (26) in order to set the light distribution of the irradiated light (28, 30).

Abstract: A rain gutter illumination system including an inverted U-shaped hanger, an illuminable surface attached to a stem of the hanger and including an aperture, an L-shaped base including a foot at one end, the end of the base opposite the foot being attached to the end of the illuminable surface opposite the hanger. A light source and one of various removable decorative inserts and optionally a diffusing panel are arranged so that the light source projects light through the aperture of the illuminable surface.

Abstract: The invention provides a lighting unit comprising a light source and a transmissive optical plate, wherein the light source comprises a light exit surface for light source light, wherein the transmissive optical plate comprises an upstream face directed to the light exit surface of the light source and a downstream face arranged away from the light exit surface) of the light source, wherein the optical plate comprises a 2D array of micro optical elements for refraction of the light source light in a direction away of the downstream face, wherein the geometrical path length from the light exit surface to the transmissive optical plate is at least 20 cm.

Abstract: An optical film, a display device including the same, and a method of manufacturing the optical film, the film including a first refractive index layer including a plurality of protrusions; a second refractive index layer covering the plurality of protrusions, the second refractive index layer having a refractive index that is different from a refractive index of the first refractive index layer; and a support layer on the first refractive index layer or the second refractive index layer, wherein a ratio of a height to a width of the protrusion is 0.5 or more.

Abstract: In one embodiment, a light emitting device comprises an array of legs extending from a body of film with the bounding edges of the legs stacked, a first light source emitting light of a first color and a second light source emitting light of a second color into the stacked bounding edges where the light emitting region defined within the body is configured to extract light of a third color. In another embodiment, a light emitting device comprises three light sources positioned to direct light into a stacked array of bounding edges. In one embodiment, a method of generating light of adjustable color exiting a surface of a film is disclosed.

Abstract: A light emitting module having a lens is disclosed. The light emitting module includes: a substrate having recesses; light emitting elements mounted within the recesses of the substrate; and a lens which is coupled with the substrate and diffuses the light emitted from the light emitting elements. The light emitting module can have a slim structure by mounting the light emitting elements within the recesses formed in the substrate.

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: An effects wheel assembly for a light fixture, in particular a stage light fixture, suitable to generate a light beam, has a supporting device which rotates about a first axis; and an effects wheel having a hub, which extends about a second axis, and an effects portion, which extends about the hub and is suitable to generate optical effects when intercepting the light beam; the supporting device and the effects wheel being selectively connectable to each other by means of jaws elastically operated to clamp the effects wheel when the hub is inserted between the jaws.

Abstract: An optical element has a light receiving surface covering a light source arranged on a plane and an exit surface covering the light receiving surface. When an axis passing through the center of the light source and is perpendicular to the plane is designated as an optical axis and the point of intersection of the optical axis and the light receiving surface is designated as O1, the light receiving surface is concaved around the optical axis with respect to the periphery. When an angle which a normal to the light receiving surface on a point P thereon forms with the optical axis is designated as ?h and distance in the optical axis direction from O1 to P is designated as z, ?h has at least one local maximum value and at least one local minimum value with respect to z while P is moved along the light receiving surface.

Abstract: Disclosed is a condensing type optical sheet for use in a liquid crystal display, which prevents the generation of a yellow band or a rainbow phenomenon without using a protective sheet.

Abstract: Certain example implementations of the disclosed technology include a light emitting device. The light emitting device may include an enclosure with four sides and a top edge surface associated with each of the four sides. The enclosure may be capable of mounting on a grid frame of a suspended ceiling such that a portion of the top edge surfaces contacts a portion of the grid frame. The light emitting device may further include a light modifying element characterized by a substrate with four or more edges, a back surface disposed on the top edge surface of each of the four sides of the enclosure, and a front surface. In certain example embodiments the substrate may further comprise two or more edge trusses. A periphery of the light-emitting front surface may be capable of contacting the grid frame after the light emitting device is mounted to the grid frame.

Abstract: A lighting module has an array of light-emitting elements, a housing defining at least one opening, and a window frame that is selectively removable from the opening of the housing. The window frame has a frame and a window that is operably secured to the frame. The array of light-emitting elements is positioned within the housing. The window frame is replaceable or selectively removable from the housing of the lighting module. The window frame may include a gasket that is positioned between the frame and a portion of the window that is operably secured to the frame. In some examples, the gasket is a die-cut expanded PTFE gasket.

Abstract: One embodiment is a lighting device. The lighting device comprises a first case comprising a first extension part and a second extension part; a first light emitter disposed in the first case; a first diffuser disposed in the first case and over the first light emitter; a second case comprising a third extension part and a fourth extension part; a second light emitter disposed in the second case; a second diffuser disposed in the second case and over the second light emitter; and a bracket coupled to the second extension part and the third extension part.

Abstract: A flameless candle includes a shell that has a sidewall and a hollow interior region. The sidewall can be made of a waxen material. The sidewall has a thickness and opacity. The shell also has a hollow interior region within the sidewall. A lamp (for example, LED) may be housed within the hollow interior region. The flameless candle also includes an insert. The insert can be made of a waxen material that may have different properties from the material of the sidewall. The insert is positioned in a top area of the hollow interior region. The insert includes a shading wall that has a thickness and opacity. The thickness of the sidewall may be different than the thickness of the shading wall. As another option, the opacity of the sidewall may be different from the opacity of the shading wall.

Abstract: A lighting device is disclosed that includes one or more master circuit boards configured to power light emitting diodes. The lighting device also includes modular light boards with arrays of light emitting diodes that interchangeably couple to the matched connectors on the master circuit board. The master circuit boards and the modular light boards are positioned within a housing with one or more diffuser lenses. In accordance with the embodiments of the invention, master circuit boards and modular light boards are mounted in a stacked arrangement to emit light from opposed sides of the housing. In further embodiments of the invention, the lighting device includes a controller for independently controlling light output from each master circuit board.

Abstract: According to one embodiment, there is provided a luminaire including a light-emitting element and a cover provided on an irradiation side of the light-emitting element. The cover includes a first light transmitting section provided on the center side of the cover and a second light transmitting section provided at the peripheral edge of the first light transmitting section and having light transmittance higher than the light transmittance of the first light transmitting section.

Abstract: According to one embodiment, a lighting device includes a base member, a light source on the base member, a light-transmitting cover configured to cover the light source and to emit light emitted from the light source to the outside, and a light guide body provided opposite the light source and configured to guide, to the rear of the light source, at least part of the light from the light source. The cover includes a back light-transmitting region having a plane-normal line directed rearwardly. The light guide body includes a light-incident portion facing the light source and a light guide-emitting portion curvedly extending outward from the light-incident portion, having a distal end portion extending along the back light-transmitting region and directed to the rear.

Abstract: According to one implementation of the disclosed technology, a lens is provided. The lens includes one or more pieces of optical film configured for attaching to and modifying light from a light emitting device. The one or more pieces of optical film define: a lens aperture; a front light-emitting side of the lens; a back light-receiving side of the lens; and two or more edge trusses. The edge trusses are disposed towards the back light-receiving side of the lens. Each of the two or more edge trusses include one or more sides configured from a corresponding fold in the one or more optical films, wherein at least one of the one or more sides of each of the two or more edge trusses is configured at an angle relative to the lens aperture plane to impart support to the lens and to resist deflection of each edge truss.

Abstract: A linear light source apparatus is provided, being configured to convert light emitted from one light emitting element to light extended linearly, and output thus converted light. There is a lens that diffuses light flux within a predetermined region including the optical axis of the light emitting element, out of the light incident from the light emitting element, at a predetermined diffusion angle in the second direction (x-direction). The light is made to converge with respect to the first direction (y-direction). This converts the light from one light emitting element to light extended linearly and outputs the converted light. As for the second direction (x-direction), it is possible to make the light flux sparse in the predetermined region, and in the region outside thereof, the light flux is rendered to be dense.

Abstract: There is provided a lighting device includes a first frame, on which a light source unit is mounted, a second frame disposed at a front of the first frame and holding a lens, and a third frame disposed between the first frame and the second frame. The first frame and the second frame are fixed to each other to configure an integral main frame, and the third frame and the main frame are connected to each other via an elastic deformation part to be displaceable relatively in a front-rear direction at a connecting position.

Abstract: A lamp unit which implements a source light source with a small number of light sources using a lens and a vehicle lamp apparatus including the same. The lamp unit includes an optical member, a base plate spaced from the optical member by a predetermined distance, and a spacer between the base plate and the optical member. The spacer supports an edge of the optical member, and a light source is disposed on the base plate. A lens is coupled to the base plate, and the lens covers the light source. The lens includes a connection portion contacting the base plate, and a reinforcement part contacting the spacer.

Abstract: An illumination device (100) includes a solid-state light source device (10), a pickup lens unit (20) on which light from the solid-state light source device is incident, and a polarization conversion element (40). A lens (22) constituting the light exit surface of the pickup lens unit (20) is an aspherical lens having a light exit surface shaped like a rotationally symmetric shape centered on a light axis (40ax) when viewed from a direction of the light axis (40ax), and having a cross-section of an aspherical shape when cut with a plane parallel to the light axis (40ax).

Abstract: An embodiment of the invention provides a low inductance light source module comprising a connector having a layer of insulating material sandwiched between first and second conducting layers and a semiconducting light source that seats in a recess extending through the first conducting layer and the insulating later and has first and second electrical contacts for receiving power electrically connected to the first and second conducting layers.

Abstract: The invention relates to an arrangement for generating light effects, particularly for decorative purposes, having a light source (10) and a textile web material (12) that can be illuminated by through light from the light source (10) toward a visible side (16) or by incident light. According to the invention, the textile web material (12) comprises a two-layer weave structure made of warp threads (18) forming a warp thread layer (26) and weft threads (20) forming a weft thread layer (24) contacting the warp thread layer (26) on one side.

Abstract: A lighting apparatus according to an embodiment includes an optical unit and a body. The Optical unit includes a light emitting module that has a light emitting element, a reflector that controls distribution of light from the light emitting module, and a unit supporting member that supports the light emitting module and the reflector. A plurality of optical units are mounted to the apparatus body such that each optical unit is detachable. And the body includes an irradiating portion that has an opening through which the optical units irradiate light.