Abstract: A light-emitting apparatus includes a light-emitting diode that functions as a light source, and a teardrop-shaped translucent member formed of a translucent material. The teardrop-shaped translucent member includes a bottom portion via which the light emitted from the light-emitting diode is input, a lateral portion configured to provide total internal reflection of the light input via the bottom portion, and a top portion configured to focus the light subjected to total internal reflection by the lateral portion so as to form an image.

Abstract: In a head lamp 1, relative positions of a laser light guide path in a tapered light guide section 20 and a parabolic mirror 5 are fixed. An optical fiber 10 and the tapered light guide section 20 are each provided so as to have a receiving end part where laser light is received and an emitting end part where laser light is emitted. The emitting end part of the optical fiber 10 is located near the receiving end part of the tapered light guide section 20.

Abstract: A lamp unit includes a projection lens, a light emitting device disposed such that a light emitting axis of the light emitting device is oriented upward, a reflector disposed to cover light emitted from the light emitting device and to reflect the light toward the projection lens, a first shade configured and disposed to partially block the light reflected by the reflector, and a second shade. The first shade includes a light cutting edge configured to form a cutoff line along an upper edge of a light distribution pattern, and an auxiliary reflecting surface extending rearward from the light cutting edge and configured to partially reflect, toward the projection lens, the light reflected by the reflector. The second shade is arranged to extend from a front edge of the reflector toward the auxiliary reflecting surface.

Abstract: Total internal reflection (TIR) optics have an engagement member that mates with a complementary feature on the LED holder. The engagement member does not interfere with light propagation through or emission from the optical component, and does not enlarge the footprint area occupied by the optical component.

Abstract: A device for illuminating a surface of a member is provided that includes a light transmissive element having a substantially planar surface adapted to be situated over and separated from the member surface. The device also includes a light source adapted to emit light rays that directly illuminate the member surface and light rays directed between the element surface and the member surface at an angle causing a substantial portion of the light rays to be reflected by the element surface onto the member surface to illuminate the member surface. The light rays reflected from the member surface pass through the element such that the illuminated member surface can be observed. An apparatus for illuminating a surface is provided that includes an arrangement reflecting light toward the member that is positioned over the member and separated from the member by a gap, and an arrangement emitting light into the gap.

Abstract: The invention utilizes a number of thin, flexible layers placed in parallel to each other and the back wall of a window well. The inner layer is translucent such that when lit, the lighting shines through the layer and illuminates the middle and outer layers or shines through all the layers and through the window well and into the room. Alternatively, the inner layer is reflective so that it reflects light directed towards it into the other layers. The various layers can be variably transparent, translucent and/or opaque and can be shaded. By spacing the layers apart, depth can be imparted to a viewer. The outermost layer can have the appearance of a metallic film and/or artistic representations. This outer film can be stenciled such that patterns of light shine through in various places.

Abstract: A double-sided LED lamp includes a shell, a plastic circuit board (PCB) and an optical film. The shell is made of translucent or transparent material. The PCB includes a number of rows of LEDs for emitting light beams, and defines a number of rows of through holes. The optical film facing the LEDs can reflect some of the light beams through the number of holes and also allow some of the light beams to pass through.

Abstract: System and method for fluorescent light excitation and detection from samples to enhance the numerical aperture and/or reduce the cross-talk of the fluorescent light.

Abstract: A display apparatus includes a housing formed with a front opening, a display unit disposed in the housing, and a lighting unit disposed in the housing for illuminating the display unit. The display unit includes a light-transmissive front display screen exposed through the front opening, and a light-transmissive rear screen disposed spacedly parallel to the front display screen. The rear screen is operable to have a first light transmittance, and a second light transmittance higher than the first light transmittance.

Abstract: A light emitting device assembly includes: a light emitting device; and a light output member provided on the light emitting element and having an upper surface on which a curved part that outputs light from the light emitting device is provided, wherein a value of a x coordinate of a curved part center axis is a positive value, a locus of an edge of a curved part forms a circle or oval around the curved part center axis, light on a Z-axis output from an origin is output from the curved part at an angle ?0 (?0>0) formed with the Z-axis within a XZ-plane, and function F(?,??) expressed by F(?,??)=(??+????)/????(1) monotonously increases, takes the maximum value at ?=?0 (<0), and then, monotonously decreases as a value of ? increases from the minimum value.

Abstract: A light-emitting diode module includes a transparent base, a support and a plurality of light-emitting chips. The base has a plurality of cavities separated from each other by a predetermined distance in order to respectively receive the light-emitting chips to form light-exiting areas. The base has a reflecting portion opposite to the cavities. The reflecting portion is at least one inclined plane for reflecting light that have projected outside walls of the cavities to the peripheral area of the light-emitting areas in order to increase the uniformity of the light source. In addition, the light-emitting chips are arranged to form a line or surface light source of any sizes by adjusting the numbers of the cavity and the light-emitting chips.

Abstract: A light source module includes: a light source; a lighting curtain that partially blocks light from the light source; and a reflective layer that is provided on the lighting curtain and that has a planar shape smaller than the lighting curtain.

Abstract: A light flux control member has a back face provided with a recess and a ring-like-recess-portion surrounding the recess. Output light of a point-like-light-source (light emission element) is incident to the recess and the ring-like-recess-portion. Incident light to the recess is emitted from a light control emission face after inner-propagation. Incident light to the ring-like-recess-portion is refracted as to hardly generate inner-propagation light deflected to directions near to a direction of reference optical axis L, resulting in outgoing from any part of the light control emission face, or, if some outgoing occurs from the light control emission face, such outgoing occurs only at an outer periphery portion of the light control emission face. As a result, illumination light quality is avoided from being reduced by appearance of conspicuous ring-like bright part. In addition, uniform illumination light can be supplied to a broad angle range.

Abstract: A backlight unit which is a lighting device is provided with: a diffusion plate; a chassis having rising sections which are provided at the outer periphery of the main flat surface thereof and supporting the diffusion plate; light-emitting modules disposed at the main flat surface and the rising sections of the chassis and applying light to the diffusion plate; and reflecting sheets disposed at the main flat surface and the rising sections of the chassis and reflecting the light, which is emitted from the light-emitting modules, toward the diffusion plate. The reflecting sheets have formed thereon sloped sections for reflecting, toward the diffusion plate, the light emitted from the light-emitting modules disposed at the rising sections.

Abstract: An object of the present invention is to configure a lighting device to discriminate the front and back sides of a substrate at low costs. In the lighting device of the present invention, a diffuser plate 30 as an optical member 15 includes: a light-transmissive substrate 32; an optical pattern 33 formed on the substrate 32 and applying an optical action to light; and a discrimination pattern 34 configured to discriminate between a first position (normal position) of the substrate 32 and a second position (non-normal position) of the substrate 32 reversed from the first position, formed on a first plane 30a that is a surface of the substrate 32 on which the optical pattern 33 is formed, and made of the same material as that of the optical pattern 33.

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: A lamp unit for forming a light distribution pattern having a given cutoff line in an upper end portion thereof includes a light source, a transparent member which receives light from the light source from rearward and projects the light distribution pattern forward, and a light shade which is provided between the light source and the transparent member and which shades a part of the light emitted by the light source. The transparent member is configured to reflect, by a front surface of the transparent member, the light that enters the transparent member from rearward thereof, then to reflect again the light to forward thereof by a rear surface of the transparent member, and then to radiate the light from the front surface. The light shade is configured to shade the light going from the light source directly toward the rear surface.

Abstract: A highly efficient luminaire is provided. 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: A light guiding body of this invention comprises a light incident surface arranged on one end side of a light guide member, a light reflecting surface arranged on another end side of the light guide member opposite to the light incident surface across the light guide member, and a light emitting surface, arranged on a side surface of the light guide member between the light incident surface and the light reflecting surface, through which light input from the light incident surface into the light guide member passes to outside, in which the light guide member is formed as a solid body and at least a part of the light guide member is made from light scattering guide material which contains light scattering particles.

Abstract: Disclosed herein is a laser navigation module, including: a light source radiating laser beam; a housing having a window mounted thereon and having a transparent or semi-transparent part formed therein in order to radiate light radiated from an inner portion of the housing to an outer portion thereof, the window transmitting the laser beam radiated from the light source therethough and reflecting the laser beam therefrom and blocking inflow of a visible ray; a lighting device mounted in an inner portion of the housing; a light diffusion member transferring light radiated from the lighting device to the housing; and a printed circuit board including a first printed circuit board having the light source mounted thereon and a second printed circuit board having the lighting device mounted thereon, the first and second printed circuit boards being formed in a stacked structure.

Abstract: A layered dimmer formed of different layers. The front layer may be a scattering layer, and the back layer may be a reflective layer. The light beam is scattered prior to reflecting, to avoid reflection back to form hotspots.

Abstract: The invention relates to a light source (10, 12) comprising a light emitter (20) arranged inside a translucent outer envelope (30, 32). The light emitter comprising a light emitting device (40) and comprising a translucent inner envelope (50) at least partially surrounding the light emitting device, the translucent inner envelope comprising a diffuser. A diameter (di) of the translucent inner envelope is smaller than a diameter (do) of the translucent outer envelope. The translucent outer envelope is connected to a base (60) not being translucent. The translucent outer envelope further comprises a symmetry axis (S). An imaginary base-plane (P) is defined substantially perpendicular to the symmetry axis (S) and intersects with a connection point (C) being part of the translucent outer envelope.

Abstract: Disclosed is a light source device (4) capable of being used by adjacently connecting with each other in multiple, the light source device includes: a point light source (5) having high directionality; a box-shaped housing (6) having a bottom to center of which the point light source is fixed, sidewall portions arranged in a standing manner from edges of the bottom up to a predetermined height, a side portion defining an opening provided facing the point light source, and a reflection member forming an inner wall surface of the housing; and a transmissive/reflective plate covering the opening of the housing and being fixed at a circumference thereof to edges of the opening of the housing. At least one of the sidewall portions that is in contact with a sidewall portion of another light source device is arranged in a standing manner at an angle ?, where 90°<??150°, relative to the bottom, and is provided with a light-transmitting hole on the side of the opening of the housing.

Abstract: A luminaire having a box-like luminaire housing for receiving at least one elongate light source and at least one reflector surface arranged—seen from the region to be illuminated—neighboring the light source, the luminaire housing forms a light exit opening which is closed by a light exit element. The light exit element has in a first emission region, located in substance in front of the light source, a first light emission characteristic, and has in a second emission region, separate from the first emission region, a second light emission characteristic different with respect to the first light emission characteristic.

Abstract: The invention relates to an LED package having a large beam angle of light emitted from an LED, simplifying a shape of a lens and an assembly process, and to a backlight unit using the same. The LED package includes a housing with a seating recess formed therein and at least one LED seated in the seating recess. The LED package also includes a lens having a predetermined sag on an upper side thereof, covering an upper part of the LED. The LED package and the backlight unit using the same can emit light uniformly without bright spots formed in an output screen, uses a simpler shaped lens with an increased beam angle, and minimizes a color mixing region to achieve miniaturization.

Abstract: A solid-state lamp comprises a light guide having at least one light emitting face and at least one solid-state light source (LED) configured to couple light into the light guide. The lamp further comprises a pattern of light extracting features for promoting emission of light from the light guide wherein the pattern of light extracting features is formed on at least one face of the light guide.

Abstract: In a headlight module for a motor vehicle, a light source having a planar surface, is immersed in a volume of transparent material, which has a refractive index greater than 1. A reflector having a focus is disposed relative to the light source so that the focus of the reflector is at a point of the light source. Accordingly, light rays emitted by light source are refracted by the transparent volume and reflected by the reflector so that such light rays become parallel to a predetermined direction.

Abstract: An interior illumination assembly comprising a lamp housing mountable on an interior panel and a lamp removably supportable within the lamp housing. The lamp includes an LED module carrying an LED and removably receivable by the lamp housing into an installed position in the lamp housing. A lens is disposed across the module opening and a reflector carried by the LED module reflects light from the LED through the lens into the compartment.

Abstract: It is an object of the present invention to provide a lighting device realizing improvement in brightness of an intended area such as a center area of an irradiation surface. A lighting device 12 of the present invention includes a light source 17, a chassis 14 housing the light source 17, and an optical member 15a facing the light source 17. The optical member 15a has a light source overlapping portion DA overlapping with a light source arrangement area LA where the light source is arranged, on the chassis 14, and a light source non-overlapping portion DN overlapping with a light source non-arrangement area LN where the light source 17 is not arranged. The light source overlapping portion DA has a surface facing the light source 17, the surface having a light reflectance greater than that of the light source non-overlapping portion DN.

Abstract: An ornament with a backlit film image having a substrate with an at least partially transparent portion viewable therethrough when backlit. A first end cap and a second end cap are configured to receive and retain a portion of the substrate in a substantially closed loop shape such that the first and second end caps and the substrate support one another into a substantially upright position to define an enclosure. A light source is disposed within the enclosure and positioned to illuminate the backlit film image at least partially viewable through the transparent portion of the substrate.

Abstract: Provided herein is a light-emitting apparatus capable of achieving both improved durability and higher brightness with an inexpensive and simple construction. A heat resistant glass substrate 51 is mounted in a vacuum chamber 5, and while an anode electrode 8 (and a light emitter 20) is mounted on the glass substrate, the glass substrate 51 is separated from a glass substrate 11. This precisely protects the vacuum chamber 5 from thermal damage due to light emission upon excitation, even when the current density between the cathode electrode 6 and the anode electrode 8 is controlled at a high level to cause the light emitter 20 to emit light at high brightness.

Abstract: The invention provides an illumination device comprising an envelope enclosing a light source, preferably a LED, and a luminescent material. The envelope comprises a transmissive part, and a reflective part, wherein the reflective part comprises a reflective ceramic material. The ceramic material can be used for heat dissipation.

Abstract: A direct-lit light guiding structure, a direct-lit light guiding panel and a lighting device are disclosed. The light guiding structure includes a light transmissive body and microstructures; the light transmissive body includes an upper conical groove and a lower accommodating groove, and the upper conical groove has a curved surface with a continually varied slope; the microstructures are disposed on the light transmissive body. The lighting device includes a circuit board, a light source and the aforesaid light guiding structure; the light source and the light guiding structure are disposed on the circuit board, and the light source is accommodated within the lower accommodating groove. With these arrangements, the direct-lit light guiding structure can receive the light rays emitted from the light source, and then output the lights uniformly. Further, a plurality of direct-lit light guiding structures can be connected with one another to form the direct-lit light guiding panel.

Abstract: An LED lighting fixture including a housing having a hollow interior cavity defined by a backwall and a surrounding wall extending therefrom to a forward edge. An LED illuminator is mounted in the housing. An LED-support structure extends in the interior cavity from the housing to an LED-supporting surface positioning the LED illuminator in a desired orientation and spaced from the backwall. The LED-support structure is a heat sink transferring heat from the LED illuminator to the housing.

Abstract: An LED package housing member that includes a light emitting chip has a missing portion in its side walls.

Abstract: The invention provides a light source unit using a liquid core fiber as a light guide, by which the liquid core fiber is inhibited from being overheated, and a light source unit by which an infrared cut filter having a multi-layer reflection film can prevent infrared rays from being introduced into a liquid core fiber, and its miniaturization can be made without causing evils. The first light source is equipped with a light source having a discharge lamp and a converging mirror, and a light guide formed of a liquid core fiber, wherein the light source and the light guide are held in a casing made of a metal, an infrared cut filter is provided in a cylindrical light shielding body surrounding an optical path in the interior of the casing, and the light shielding body and the light guide holding portion are thermally insulated from each other by a heat insulating material portion.

Abstract: A semiconductor light-emitting device includes a semiconductor light-emitting element emitting light in a region ranging from ultraviolet to visible, and a visible-light luminescent element absorbing light emitted from the semiconductor light-emitting element and outputting visible light. The visible-light luminescent element includes a substrate, a light-reflecting layer formed on the substrate and containing light scattering particles, and a luminescent layer containing phosphor particles. The luminescent layer absorbs light emitted from the semiconductor light-emitting element and output visible light. The luminescent layer further absorbs light that is emitted from the semiconductor light-emitting element, arrives at and is reflected from the light scattering particles, and output the visible light.

Abstract: An optic for producing an asymmetrical beam of light for restricting light output to an area below a midplane of the optic, and for directing light to the sides or down from the midplane.

Abstract: A light source module for generating polarized light includes a light emitting element, a reflector, and an optical element. The light emitting element generates a light ray, and the reflector reflects the light ray towards the optical element. The optical element includes a light splitting face and a reflection face. The light splitting face receives the light ray, and an angle between the light splitting face and the incident light ray is at about a Brewster's Angle. After the light ray is irradiated to the light splitting face, the light ray is divided into a refraction light and a reflection light. The reflection face reflects the refraction light, and the reflection face is substantially perpendicular to a path of the refraction light. Therefore, a light source with a high degree of polarization is realized by a design of the light splitting face and the reflection face.

Abstract: An illumination mean for the inspection of flat substrates is disclosed. The flat substrate includes an upper edge area, a lower edge area and a front area. The illumination means is formed as an annular segment and comprises an opening into which at least the edge area of the flat substrate extends. A plurality of light sources are arranged on an annular segment in a housing. Inside the housing, a reflective element is provided so that the light from the light sources does not impinge perpendicularly on the upper edge area, the lower edge area and the front area of the flat substrate.

Abstract: A supporting unit (11) makes a reflection sheet (41) having a relatively low rigidity sag toward the side surface (13S) of a base section (13) by supporting the reflection sheet (41) on a hem section (15), and at the same time, supports a diffusion sheet (43) having a relatively high rigidity on the leading edge of a shaft section (12).

Abstract: An LED module includes an LED having an optic axis and a lens fixed over the LED for refracting light emitted by the LED. The lens has a same cross section along a front-to-rear direction thereof. The lens has an inner incidence surface facing the LED and an outer emission surface. The inner incidence surface is concave toward the emission surface. The emission surface has a middle part around the optic axis of the LED concave toward the incidence surface, and two convex lateral parts off the optic axis of the LED. A peak intensity for the light generated by the LED and penetrating through the lens occurs within the convex lateral parts of the emission surface.

Abstract: A methodological approach of achieving a systematic exchange of light by employment and interplay of photo optic bodies via transmissive mediums. The present invention provides a synaptical junction or medium of exchange between optic bodies so that energy in the form of light, following behavioural patterns of waves and particles, may mutually be exchanged. Incidental rays are methodically counter reflected between neighbouring optic bodies with resultant dispersion and separation of various wavelengths. Several benefits accrue from this rendez-vous of optical bodies within the confines of a Light Distributor. Light can be more readily re-directed within 360 degrees and concentrated toward specific target areas. The unit has retro-reflective properties and generates a secondary visible light which may be reflected to all cardinal points.

Abstract: A lens that angularly redistributes light from an LED is disclosed. The desired illuminance (power per area) pattern for an LED/lens combination has a relatively flat center, a knee, and a gradual tail. By overlapping adjacent combinations' tails, the resulting illuminance pattern may be generally uniform, with relatively loose tolerances on LED/lens placement and performance. The lens has a proximal face with a concave spherical indentation with its center at the light source. The lens's distal face has a “center thickness” (CT) on-axis, a peak thickness away from a longitudinal axis of about 1.0 to 1.2 times the CT, a radius at which the peak thickness occurs of about 0.5 to 1.0 times the CT, a radius at which the thickness returns to the CT of about 1.1 to 1.5 times the CT, and a radius (maximum lateral extent) of the lens of about 1.6 to 1.9 times the CT.

Abstract: An optical light emitting device comprises a circuit substrate having a plurality of LED lamps arranged as an array; a plurality of optical lenses correspondingly installed to light extraction portions of the plurality of LED lamps, the optical lens having a platform that is equipped with an incident concave surface for containing the LED lamp, a light extracting convex surface disposed to a corresponding exterior end of the incident concave surface; and a reflector having a plurality of containing holes arranged as an array capable of corresponding to the LED lamps array of the circuit substrate, each containing hole provided for fitting the light extracting convex surface of the optical lens, expansion inclined planes with an upper-wide and lower-narrow shape disposed to a periphery of the containing hole, the platform of the optical lens leaning against a frame border of the containing hole.

Abstract: A backlight assembly and a display apparatus having the backlight assembly are disclosed. A diffusion plate is provided above a plurality of lamps. Diffusion patterns that cause contrast inversion and diffusion patterns that do not cause contrast inversion are arranged on a surface of a diffusion plate, in an alternating manner along a longitudinal direction of the lamps. Thus, a brightness difference between a first area in which the lamps are positioned and a second area between two adjacent lamps is reduced, thereby improving a brightness uniformity of light from the backlight assembly.

Abstract: A light emitting diode (LED) optical system. Implementations disclosed in this document may include two or more LEDs coupled with a circuit board and two or more optics. The two or more optics may each include a first end and a second end where the second end opposes the first end and a first optical stage including the first end. A second optical stage may be included that includes the second end. The first optical stage may include a total internal reflector and the second optical stage may include an upper reflector portion located at the second end. The two or more optics may be coupled over the two or more LEDs at their first ends and the two or more optics may be coupled to each other along a portion of their first optical stages and at their second optical stages.

Abstract: A light emitting diode illuminator includes a reflecting shell (120), a light emitting diode light source (140) and a transparent cover (160). The reflecting shell includes a plurality of sequentially connected hollow tapered bodies (122, 124) having different taper angles. The tapered bodies cooperatively form a receiving space (123). The light source is installed at an end of the receiving space. The transparent cover is disposed at an opposite end of the reflecting shell away from to the light source and configured for directing light emitted from the light source out from the light emitting diode illuminator.

Abstract: Lighting systems for emitting light in multiple directions including one or more light emitting devices (LEDs) and a housing configured to receive the one or more LEDs are provided. The one or more LEDs are configured to generate light in a first direction to illuminate a first area proximate to the lighting system. The housing is configured to reflect a portion of the generated light so as to allow a remaining portion of the generated light to pass through the housing in a second direction, different from the first direction, and illuminate a second area proximate to the lighting system. Related methods are also provided herein.

Abstract: A luminaire housing with a printed bottom panel is provided. The luminaire housing has a luminaire housing frame. The printed bottom panel is coupled to the luminaire housing frame and has a first surface generally facing the interior of the luminaire housing. The first surface of the printed bottom panel has an opaque ink layer applied thereto that defines a printed area. The printed area outlines at least one light permeable light passageway.