Abstract: A zoom unit (1) of a light engine (5), comprising at least one lens (2), at least one first reflector (3) and at least one second reflector (4), other at least one lens (2) receives a collimated beam (LI) from a light source unit (6) of the light engine (5), the collimated beam (LI) being incident on the first reflector (3) after being converged by the lens (2), and being incident on the second reflector (4) after being reflected by the first reflector (3), to produce an output beam (L4) with its beam angle changed.

Abstract: An LED lamp set for enhancing illumination and eliminating ghost images includes a lamp shade, a diffusion membrane and a circuit board. The lamp shade has a plurality of light cups each having a housing chamber to hold at least one LED. The housing chamber has an aperture at the bottom run through by the LED to form electric connection with the circuit board and an opening remote from the aperture to define a light output surface. The diffusion membrane covers the light output surface and is made of a transparent material and includes a plurality of transparent bumps on the surface. The circuit board is located below the lamp shade. Through the concave shape of the light cups and repetitive reflection of the bumps, light can be condensed to avoid scattering and loss. Moreover, as the light is greatly and uniformly condensed, ghost images can be eliminated.

Abstract: A light panel is disclosed. The light panel comprises a circuit assembly, a plurality of light sources, a light reflective structure, and a diffuser layer. The light reflective structure has a plurality of concaves, which are continuously connected to form a plurality of ridges. Each of the concaves has an opening formed on the bottom surface thereof, and each of the light sources is disposed corresponding to each of the openings of the concaves. The diffuser layer is supported by the ridges of the light reflective structure. In some aspects of the present invention, the diffuser layer may have a sloping inner surface or is coated with patterned diffuser coatings on the top surface. Each light source can be added with a lens.

Abstract: One embodiment of an optical system described herein comprises a source including light emitting diode chip and a homogenizer. One embodiment of the homogenizer comprises an entrance face positioned to receive light from the source, the entrance face having a first shape, a body configured to homogenize the received light and an exit face, the exit face parallel to the primary emitting face of the source. The homogenizer can emit light with a half angle that is at least 80% of the half angle of light entering the homogenizer.

Abstract: A light guide with a bar-like shape that extends in a predetermined direction, having: a reflective surface that reflects light inside the light guide within the light guide; a first output surface that causes light inside the light guide to exit the light guide, the first output surface, when viewed in plan from the predetermined direction, constituting a first are of an ellipse that has a first focal point, along with a second focal point located on the reflective surface, and the first are being closer to the first focal point than to the second focal point; and a second output surface that causes light inside the light guide to exit the light guide, the second output surface, when viewed in plan from the predetermined direction, constituting a second arc of an ellipse that has a third focal point, along with a fourth focal point coinciding with the second focal point, and the second arc being closer to the third focal point than to the fourth focal point.

Abstract: A wall notification device described herein can draw a lower current by providing a more efficient reflector configuration. The reflector is designed to be positioned on a wall and provide sufficient light output in each of the requisite directions, as required by the UL 1971 standard. The notification device has a reflector unit having a base having a curved portion centered on the vertical axis and a flat portion extending from the curved portion; a reflective flange extending from a location near a top side of the base; a first and second specular protrusion extending from the curved portion of the base; a third and fourth specular protrusion extending from the base; a fifth and sixth specular protrusion extending from the curved portion of the base; and a sixth and seventh specular protrusion extending form the flat portion of the base.

Abstract: A light exit surface of an illuminating lens has a first light exit surface and a second light exit surface. The first light exit surface is recessed toward a point on the optical axis, and the second light exit surface extends outwardly from the periphery of the first light exit surface. The first light exit surface has a transmissive region and a total reflection region. When the position of a light source on the optical axis is defined as a starting point, the transmissive region transmits light that has been emitted from the starting point at a relatively small angle with respect to the optical axis, and the total reflection region totally reflects light that has been emitted from the starting point at a relatively large angle with respect to the optical axis.

Abstract: An illuminating lens includes a main body and a ring portion. The main body has a light exit surface, and the light exit surface has a first light exit surface recessed toward a point on the optical axis and a second light exit surface extending outwardly from the periphery of the first light exit surface. The first light exit surface has a transmissive region in the center thereof, and a total reflection region on the peripheral side thereof. The ring portion has a back surface configured to guide the light that has been emitted from a light source, totally reflected repeatedly at the light exit surface, and then entered the ring portion to an end surface by total reflection.

Abstract: The present disclosure relates to a lighting fixture. In one embodiment, the lighting fixture includes a reflector and a lens. The reflector includes a first flange that defines a forward opening and includes at least one tab receiver outside of the forward opening. The lens has an outer periphery and includes at least one tab that is configured to mate with the tab receiver of the first flange, such that when each tab is mated with a corresponding tab receiver, the lens is affixed to the reflector. In this arrangement, there are no dark spots visible on the lens due to the presence of the tabs when light is emanating from the lighting fixture.

Abstract: A lighting module may include a light source; a lens arranged at a distance from the light source; and a reflector; wherein the lens is configured and arranged to have a wide-angle emission characteristic and to direct a proportion of the light incident from the light source onto the reflector, wherein the proportion is at least 30%.

Abstract: A light exit surface of an illuminating lens has a first light exit surface and a second light exit surface. The first light exit surface is recessed toward a point on the optical axis, and the second light exit surface extends outwardly from the periphery of the first light exit surface. The first light exit surface has a transmissive region and a total reflection region. When the position of a light source on the optical axis is defined as a starting point, the transmissive region transmits light that has been emitted from the starting point at a relatively small angle with respect to the optical axis, and the total reflection region totally reflects light that has been emitted from the starting point at a relatively large angle with respect to the optical axis. A reflective layer is formed on a bottom surface that surrounds a light entrance surface and faces oppositely to the light exit surface.

Abstract: An optical unit includes: a heat sink that radiates heat from a light source; and a base portion including a reflector mounting section, a lens mounting section and a connecting section connecting the reflector mounting section and the lens mounting section. The base portion is configured such that the light from the light source is reflected by a reflector mounted onto the reflector mounting section and is incident onto a projection lens mounted onto the lens mounting section. The heat sink is exposed to a space surrounded by the lens mounting section, the connecting section and the reflector mounting section.

Abstract: A light-directing apparatus for preferential-side distribution of light from a light emitter having an emitter axis, including a lens member positioned over the light emitter and a shield member. The lens member has a proximal end substantially transverse the emitter axis and an outer surface which may be configured for refracting light from the emitter. The shield member is received in a shield-receiving void of an inner surface of the lens member. Another aspect of this invention is a lighting fixture utilizing such light-directing apparatus.

Abstract: A ring generating LED lamp includes a lens section which employs internal reflection to direct the light energy from a hemispherical emitter into a ring shaped output distribution. The ring shaped distribution projects above and below the plane of the LED source. The lens has multiple internal surfaces that direct light from the LED source to provide a ring shaped output distribution.

Abstract: A luminaire with an LED based illumination device having at least one LED includes a transmissive lens element that in combination with reflector is able to generate an output beam with a sharply defined large angle intensity profile. The reflector element is mounted to the LED based illumination device. The transmissive lens element includes first and second interior surfaces and third and fourth exterior surfaces. A portion of light emitted from the LED passes through the first interior surface and the third exterior surface and refracts towards an optical axis of the LED based illumination device, and the reflector element without interacting with the reflector element. Another portion of light emitted from the LED passes through the second interior surface and fourth exterior surface and refracts away from the optical axis to be reflected by the reflector element.

Abstract: A lamp can includes: a first reflective surface which can be provided on a surface of a circular shaped member, a radius of a top of the annular member can be longer than a radius of a bottom of the annular member; a second reflective surface which can be arranged inside of the first reflective surface and can have a conical shape, a vertex of the second reflective surface can be directed to a top side of the first reflective surface; and a plurality of light emitters which can be annularly arranged on the first reflective surface around the second reflective surface at a predetermined interval so as to be projected on the second reflective surface.

Abstract: A light emitting device includes plural light emitting diodes and plural lenses each of which expands the light from the light emitting diode. The lens includes an incident surface through which the light from the light emitting diode is entered at an optical axis and around the optical axis, and an output surface from which the incident light is output while radially expanded. The incident surface includes a continuous concave surface, the output surface includes a continuous convex surface, and the lens has different refractive powers in a first direction orthogonal to the optical axis and in a second direction orthogonal to the optical axis and the first direction.

Abstract: A lighting device 12 of the present invention includes a plurality of light sources 17 and an optical member arranged closer to the light-exiting portion 15z than the light sources 17. The optical member 15 includes a prism diffuser plate 15a for diffusing light emitted from the light sources 17 and exiting from a lens sheet 15c arranged closer to the light-exiting portion 15z than the prism diffuser plate 15a. The prism diffuser plate 15a has prisms on a surface located on a side closer to the light-exiting portion 15z. The lens sheet 15c has convex lenses 62 on a surface closer to the light-exiting portion 15z.

Abstract: Some embodiments provide an illumination optical system. The optical system can include a first surface and a second surface. Each of the first and second surfaces can further comprises a multiplicity of corresponding Cartesian-oval lenticulations such that each lenticulation of the first surface focuses a source upon a corresponding lenticulation of the second surface and each lenticulation of the second surface focuses a target upon a corresponding lenticulation of the first surface.

Abstract: A lighting device (100, 200, 300, 400) is disclosed. The device comprises a plurality of light sources (111, 119, 120, 211, 219, 220) providing light in different wavelengths, a collimating means (104, 204) having a receiving end (103, 203, 407) and an output end (114, 214, 409), wherein said light sources are arranged at said receiving end.

Abstract: A dimmer wheel which is formed to absorb large amounts of light and to disperse the light that is absorbed. The dimmer wheel has a bottom surface that is irregular, and a reflective material in that bottom surface to scatter the light. A light absorbing material also receives some of the light.

Abstract: Optical devices for guiding illumination are provided each having a body of optical material with staircase or acutely angled ramp structures on its top surface for distributing light inputted from one end of the device from the front exit faces of such structures along certain angular orientations, while at least a substantial portion of the light is totally internally reflected within the body until distributed from such front exit faces. Optical devices are also provided each have a body of optical material having a bottom surface with acutely angled ramp structures and falling structures which alternate with each other, such that light is totally internally reflected within the device until reflected by such ramp structures along the bottom surface to exit the top surface of the device or transmitted through the ramp structures to an adjacent falling structure back into the device.

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: The present invention relates to a light-guiding cover and an illumination device having the same. The light-guiding cover, for guiding light beams emitted by at least one light-emitting diode (LED), has a light-guiding portion and a light output portion. The light-guiding portion has a light input surface for transmitting light beams thereto and a connecting surface. The light output portion formed on one end of the light-guiding portion has an optical surface adjoining the connecting surface. The light-guiding cover is substantially symmetrical and defines a central axis. The light beams received by the light-guiding portion are guided by the light input surface for light reflection from one side to another side of the optical surface across the central axis to exit from the light-output portion. Thus, the illumination device having the light-guiding cover can illuminate in an omni-directional manner.

Abstract: Certain embodiments may include system apparatus for providing optical film lens assemblies, light fixtures, and film tensioning frame. According to an example embodiment, a lens assembly is configured for modifying light from a light source associated with a light fixture enclosure, wherein the lens assembly is characterized by one or more optical films that are characterized by at least one or more lenticular surfaces. The lens assembly is further characterized by a curved plane. According to an example embodiment, a film-tensioning frame is characterized by a frame with four corners, wherein one or more film sheets are attached to the top or bottom of the frame at least at the four corners of the frame, and wherein the one or more film sheets are tensioned on the frame by elastic potential energy imparted into the frame before attachment of the one or more film sheets.

Abstract: A light-directing apparatus for off-axial preferential-side distribution of light from a light emitter having an emitter axis, including a lens member positioned over the light emitter and a shield member. The lens member has a proximal end substantially transverse the emitter axis and an outer surface which may be 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 lens member. Alternatively, the shield member is embedded by the lens member having been molded thereabout. Another aspect of this invention is a lighting fixture utilizing such light-directing apparatus.

Abstract: A highly efficient luminaire. The luminaire includes a light source that emits light. The emitted light is redirected by a light transformer having a curved circular reflective interior surface, the reflective interior surface reflecting the light in a predetermined pattern. A substantial amount of light being may be reflected close to an axis coincident with a radial line defining a radius of the circular reflective interior surface. Additionally, a substantial amount of light may be reflected in a pattern with low divergency or parallel with an axis of the light transformer. The light is transmitted to the exterior of the luminaire by an optical window.

Abstract: The present invention discloses a light assembly, which includes a transparent main body and a lens. The transparent main body includes an interior chamber gradually expanding from bottom to top, an inner wall encircling the interior chamber, and an outer wall encircling the inner wall. The outer wall is a total internal reflection surface. The inner wall includes a plurality of first facets facing a first direction and a plurality of second facets facing a second direction which is different from the first direction. The first facets and the second facets are provided to encircle the interior chamber respectively. Either side of each of the first facets is connected to one of the second facets, and each of the two adjacent first facet and second facet form an angle therebetween. The lens is fitted into the main body and faces the interior chamber of the main body.

Abstract: The LED illuminant module for medical luminaires contains a circuit board capable of heat dissipation, an LED die package, a beam splitter, and a reflector. The LED die package is attached to the circuit board and is covered by the beam splitter, which in turn is pressed by and positioned along with the reflector. Central beams from the LED die package are collimated by the beam splitter to project forward. The side light beams are refracted by the beam splitter, intercepted by the reflector, and directed to a target coverage area along with the central light beams. The illuminant module is able to achieve low energy consumption and ease of manufacturing simultaneously.

Abstract: An illumination device includes an active layer, such as a blue LED, covered with a first luminescent ceramic converter layer and partially covered with a second luminescent ceramic converter layer. The first and second conversion layers convert primary photons emitted by the active layer into photons of different, longer wavelengths. The color point of the illumination device can be adjusted by adjusting the relative size of the second conversion layer.

Abstract: An LED lamp includes a housing, multiple LEDs received in a first end portion of the housing, an envelope having a first end portion inserted in the housing and having a second end portion extending beyond a second end portion of the housing, and a reflector covering the second end portion of the envelope and having a reflective surface facing the LEDs. The LEDs encircle the first end portion of the envelope. The second end portion of the envelope spaces a distance from the second end portion of the housing to define a window at the second end portion of the envelope. Light generated by the LEDs permeates the envelope and impinges on the reflective surface, and the light is reflected by the reflective surface to emit out of the housing from the window, thereby illuminating an annular region around the housing.

Abstract: The present invention relates to warm white light engines including combinations of blue, cyan, and red, red-orange, or amber emitters and one or more phosphors that produce a white light pleasing to the human eye through the use of improved color uniformity and improved collimation of light. Specifically, a micro-lenslet array having an optimized surface is used to disperse light from the light emitter; an innercollimation lens having an optimized cross-sectional shape and micro-ridges is used to disperse light; a TIR reflector having an optimized cross-sectional shape and micro-ridges is used to disperse and redistribute phase as well as provide collimation; and a final micro-lenslet layer includes optimized lenslet design placement and randomization factor to homogenize light to produce a uniform warm white light.

Abstract: A housing includes a housing underpart, the housing underpart being provided with a housing cavity. The housing cavity comprises an opening on one housing side and, on the floor of the cavity, contains an electromagnetic radiation emitting semiconductor chip. A cover that is at least partially transparent to the electromagnetic radiation covers the housing cavity. A method for emitting electromagnetic radiation in a preferred direction is also disclosed.

Abstract: A wall notification device described herein can draw a lower current by providing a more efficient reflector configuration. The reflector is designed to be positioned on a wall and provide sufficient light output in each of the requisite directions, as required by the UL 1971 standard. The notification device has a reflector unit having a base having a curved portion centered on the vertical axis and a flat portion extending from the curved portion; a reflective flange extending from a location near a top side of the base; a first and second specular protrusion extending from the curved portion of the base; a third and fourth specular protrusion extending from the base; a fifth and sixth specular protrusion extending from the curved portion of the base; and a sixth and seventh specular protrusion extending form the flat portion of the base.

Abstract: A condensing device for LED includes a base arranged with LED on a surface thereof and a projecting lens aligned to a center of the base. Lights from the LED will be concentrated by the projecting lens without scattering.

Abstract: A beam shaper according to an embodiment of the present invention for a light source arrangement for generating a radiation profile includes a multitude of adjacently arranged optical beam-shaping elements, each belonging to one type of a plurality of different types with different optical characteristics. When illuminated together, the beam-shaping elements effect the radiation profile of the beam shaper and each include an intensity-modulating element and a refractive element.

Abstract: A lamp unit includes a first light source; a projection lens that forms a light distribution pattern using light radiated from the first light source; a second light source; and a parabola optical system reflector that reflects light radiated from the second light source. The projection lens has a paraxial outer peripheral portion that is closer to a first optical axis than at least part of another outer peripheral portion as seen in the direction of the first optical axis. The parabola optical system reflector reflects light radiated from the second light source such that the reflected light passes through a space adjacent to the paraxial outer peripheral portion.

Abstract: An optical sheet receiving an incident light from a light source is provided. The optical sheet includes a body, a plurality of reflective structures, and a plurality of Fresnel lens units. The body includes an incident surface and an emergent surface. The incident surface receives the incident light with an incident angle. The refractive index of the body is ni and i is a positive integer. The reflective structures are placed on the body. There is a spacing W between two neighboring reflective structures. In the direction of the incident light, the thickness of the reflective structure is t. The Fresnel lens units, having a width P, are disposed on the emergent surface. Each Fresnel lens is corresponded to the spacing. When the equation, tan - 1 ? [ P 2 6 ? t ] > sin - 1 ? ? i = 1 j ? 1 n i , j ? 1 , is satisfied, the incident light passes through the spacing, the incident angle is adjusted by the thickness t and converged by the Fresnel lens units.

Abstract: A light emitting diode (LED) lamp unit is disclosed for obtain a thin profile display device, to improve uniformity of light, and to simplify a power connection line for operation, which includes an optical lens having a central recess part and an edge, wherein the central recess part is hollowed out inwardly, and the edge is formed in shape of a flat surface or in shape of a convex lens; at least one or more LED chips arranged at fixed intervals in a lower portion of the optical lens; and a lower reflecting sheet positioned on a bottom surface of the LED chip.

Abstract: Optical devices for guiding illumination are provided each having a body of optical material with staircase or acutely angled ramp structures on its top surface for distributing light inputted from one end of the device from the front exit faces of such structures along certain angular orientations, while at least a substantial portion of the light is totally internally reflected within the body until distributed from such front exit faces. Optical devices are also provided each have a body of optical material having a bottom surface with acutely angled ramp structures and falling structures which alternate with each other, such that light is totally internally reflected within the device until reflected by such ramp structures along the bottom surface to exit the top surface of the device or transmitted through the ramp structures to an adjacent falling structure back into the device.

Abstract: There is provided a vehicle lamp unit. The vehicle lamp includes: a projection lens disposed on an optical axis extending in a vehicle longitudinal direction; a semiconductor light emitting element comprising a light emitting surface having an almost rectangular shape and disposed behind a rear focal point of the projection lens such that a long side of the light emitting surface is substantially perpendicular to the optical axis; and a reflector comprising a reflection surface having an almost oval shape. A first focal point of the reflector is located on the rear focal point of the projection lens, and a second focal point of the reflector is located on the semiconductor light emitting element, and a minimum distance between the reflection surface and a rear corner portion of the light emitting surface is in a range of about 0.3 millimeters (mm) to about 3 mm.

Abstract: A signal is described that includes one or more LEDs that emit light and a lens that receives and collimates the light from the LED array. A distribution optic receives light from the collimating lens and distributes the light in a predetermined pattern according to a specification. A light absorbing/reflecting element is located in an area proximate the one or more LEDs to minimize light received from an external source from exiting the signal.

Abstract: An LED light shaping device and illumination system are provided. According to one embodiment, a light shaping lens is configured to shape light emitted from a light source and direct the light on a display panel for projection. The light shaping lens comprises a light input surface configured to receive light emitted from the light source a reflective surface configured to reflect at least part of the light received by the light source; and a light output surface having a first curvature in a first direction and a second curvature in a second direction, wherein the light output surface is configured to emit the light that is received by the light input surface and reflected by the reflective surface, and wherein the first curvature and the second curvature are configured to shape the light such that the emitted light has an oval cross section.

Abstract: An optical element for a light source and a lighting system using the optical element are disclosed. In example embodiments, the optical element includes an entry surface and an exit surface opposite the entry surface. The entry surface includes at least three subsurfaces, wherein each subsurface is disposed to receive light rays leaving light source. Each of the three subsurfaces is geometrically shaped and positioned to receive light rays entering the optical element through that subsurface in order to direct the light passing through the optical element. In some embodiments the optical element includes a concentrator lens disposed in the exit surface. The optical element can also include a mixing treatment. A lighting system can include multiple optical elements, each paired with a light source such as an LED or LED package.

Abstract: A troffer luminaire having a continuous appearance when connected in aligned fashion within a suspended ceiling. The luminaire has first and second faux reflector assemblies which pivot from within the housing of the troffer luminaire. The troffer luminaire further comprises a removably connected lamp shield which may come in various designs and which therefore makes the lamp shields interchangeable.

Abstract: A selectively light-reflecting sheet (30) includes a prismatic film (1) with parallel prisms (10) on its face, a low-index film (3) on the prisms and a layer (5) on the low-index film, this layer having a substantially flat surface. This results in a low effective index, which means that light incident at steeper angles on the prismatic film (1) will pass through it. This “leaky” effect can be used in conjunction with a reflector sheet (20) in a tapered-waveguide arrangement to construct a lightweight backlight.

Abstract: The present invention relates to a plastic component having a visible part that is made in one single layer from a plastic molding compound and that comprises a transparent or translucent matrix, and having a light source that comprises one or more lamp elements, situated under the surface of the visible part. The visible part is implemented as essentially opaque in relation to daylight and transparent or translucent in relation to the light emitted by the lamp elements. The visible part also contains admixed effect pigments and defines a surface appearance image which, when the light source is inactive, essentially corresponds to the surface appearance image of the remaining wall of an object in which the plastic component is installed and which, when the light source is active, is essentially determined by the light source activity.

Abstract: An LED package comprises an LED for emitting LED light, and a conversion material remote to said LED for down-converting the wavelength of LED light. The package further comprises a reflector directing at least some of the LED light toward the conversion material, the conversion material down-converting the wavelength of at least some of the reflected LED light. A method for emitting light from an LED package comprising providing an LED, reflector and conversion material, and emitting light from said LED, at least some of the LED light emitted toward the reflector. The method further comprises reflecting at least some of the LED light toward the conversion material, and converting at least some of said reflected LED light at the conversion material. At least some of the converted reflected LED light is emitted by the LED package.

Abstract: The present invention provides an optical component, a manufacturing method of the same and a backlight module including the foregoing optical component. The optical component includes a plurality of microstructures and reflecting members. The microstructure is extended along a first direction and arranged along a second direction on a light exit surface, and a distance between the first curve and the second curve in the second direction is not equal and not parallel, and a distance between the second curve and another first curve in the second direction being not equal and not parallel. Each reflecting member is extended along the first direction and arranged along the second direction on a light entrance surface and the position of each reflecting member is among two microstructures.

Abstract: A light emitting diode (LED) lamp unit for obtaining a thin profile display device, to improve uniformity of light, and to simplify a power connection line for operation. The LED lamp unit includes an optical lens having a central recess part and an edge, wherein the central recess part is hollowed out inwardly, and the edge is formed in shape of a flat surface or in shape of a convex lens; at least one or more LED chips arranged at fixed intervals in a lower portion of the optical lens; and a lower reflecting sheet positioned on a bottom surface of the LED chip.