Abstract: A light source module includes an optical unit, which includes a light-emitting device, a light-guiding device and a light-converging structure. The light-guiding device has a light incident end, a light emitting end, a first curved surface connecting the light incident end and the light emitting end, and a side surface. The light-emitting device is disposed beside the light incident end. The section of the first curved surface by the side surface is a first curve. The section of the first curved surface by the reference plane perpendicular to the side surface is a second curve. The light-converging structure is disposed between the light-emitting device and the light incident end and has a first arc-convex surface and two second convex surfaces, in which the first arc-convex surface and the second convex surfaces are arranged along a direction parallel to the side-surface.

Abstract: An object has fiber optics or other light emitting portion, the operation of which is triggered by temperature, sound, fingerprint or motion. In preferred embodiments the light emitting portion cooperates with a non-light emitting portion to enhance the ornamental design, and in especially preferred embodiments a portion of the ornamental design appears to be moving by virtue of triggering of different bundles of fiber optics.

Abstract: Provided is a light source apparatus that includes light emitting tube (21), light pipe (23) which has incident surface (23a) into which light from light emitting tube (21) enters and which has exit surface (23b) from which light that has entered incident surface (23a) is subjected to multiplex reflection to be output, lens (25) into which the light output from exit surface (23b) enters, first parabolic reflection mirror (26) that reflects a part of the light that is output from exit surface (23b) and that does not enter lens (25), and second parabolic reflection mirror (27) which makes the light reflected by first parabolic reflection mirror (26) enter incident surface (23a).

Abstract: A system and method of providing an at least two color image with a system where the system has at least two contiguous imaged light print sheets. Each imaged light print sheet has a white light translucent sheet having a volume and a first and second print sheet having pixels within the volume which alter direction of white light transmission through the volume such that at least some light intersecting the pixel is directed towards the first viewable surface. The first and second at least two imaged light prints overlain with respective pixels of a single composite image in registry. A light emitter of a first visible color is positioned to edge-light the first imaged light print sheet and a second light emitter of a second visible color different from the first visible color, is positioned to edge light the second imaged light print sheet.

Abstract: A light guide includes a body transmittable to light and a plurality of light guiding elements. The body includes a first end face on an end thereof. The body further includes a light emitting portion, a deflecting portion, and two lateral sides. The light emitting portion and the deflecting portion are opposite to each other. Each of the two lateral sides is connected to the light emitting portion and the deflecting portion. The first end face is connected to the deflecting portion and each of the two lateral sides. Each light guiding element includes a curved face. The curved face is a conical surface or a part of the conical surface. The curved face is coupled to the deflecting portion. The light guiding elements can be arranged on the deflecting portion in one or more rows to control the light output directions and to reduce the illuminating angle.

Abstract: A light emitting unit includes a light source and a light guiding member. The light guiding member includes a light incident guiding portion that is arranged to face a light emitting surface of the light source and have a light incident surface, on which light emitted from the light source is incident, is formed at one end thereof, and a plurality of branched extending light guiding portions that are branched from the light incident guiding portion and extend towards back surfaces of a plurality of display portions. The plurality of branched extending light guiding portions are so formed that, the end surfaces of the branched extending light guiding portions have larger areas in accordance with increase of the lengths in the extending directions of the branched extending light guiding portions.

Abstract: Systems and methods provide for illuminating a subject using a light pipe that transmits light from a source. A method includes providing a light pipe, the light pipe defining an inner lumen through which the image sensor views the subject; providing a light source in alignment with a proximal portion of the light pipe; and using the light source, projecting a light into the light pipe and through the light pipe, the light pipe including a distal portion for providing a high-angle bright field illumination pattern on the subject with a first portion of the light and for reflecting a second portion of the light for providing a low-angle dark field illumination pattern on the subject.

Abstract: An illumination device for irradiating objects with electromagnetic radiation is provided. The illumination device includes at least one light guide and a radiation source that emits electromagnetic radiation in the spectral region from 320 nm to 420 nm into the light guide. The light guide is formed of a glass that has a spectral transmittance of at least 70% at 350 nm and is selected from the system of lead-free silicate-tin glasses.

Abstract: A fiber-optic illumination system provides lighting via a small number of low energy lighting elements, from which light is transmitted via fiber optic cables to the specific locations where illumination is needed. Low energy light elements, such as LEDs may be housed centrally at an illuminator with light distributed to where illumination is needed via fiber optic cables, resulting in reduced energy costs and simplified system maintenance.

Abstract: According to an embodiment, a light emitting device includes: a light emitting section that has a light emitting element; a wavelength conversion section that absorbs light radiated from the light emitting section and emits the light having a wavelength different from that of the light radiated from the light emitting section; and a light guide section that is provided between the light emitting section and the wavelength conversion section and to propagate the light radiated from the light emitting section, and includes a first irradiation surface which radiates the propagated light toward a position in which the wavelength conversion section is provided, and a second irradiation surface which radiates the propagated light toward a position different from the position in which the wavelength conversion section is provided.

Abstract: A light injection system includes a radiation source, an optical waveguide, and an optical component. The radiation source emits radiation and is oriented relative to the optical waveguide such that a first portion of radiation emitted from the radiation source couples into the optical waveguide as emitted from the radiation source and a second portion of radiation emitted from the radiation source bypasses the optical waveguide as emitted from the radiation source. The optical component redirects at least some of the second portion of radiation emitted from the radiation source that would otherwise bypass the optical waveguide and enables at least some of the redirected radiation to couple into the optical waveguide instead of bypass the optical waveguide.

Abstract: A ring light illuminator with annularly arranged light sources is disclosed. To each light source there corresponds a light collector, a homogenizing means for light from the light source, and an anamorphic system for imaging an output of the homogenizing means into an area to be illuminated. The anamorphic system compensates deformations of a cross-sectional area of a light beam in a surface to be illuminated due to an oblique angle of incidence of the light beam onto the surface. The homogenizing means in embodiments is a rod, into which light from the light collector is directed. The end of the rod opposite the light collector is imaged by the anamorphic system into the area to be illuminated on the surface. Also disclosed is a method for illumination.

Abstract: A lighting device includes a light source, an elongated panel member, an elongated light guide member provided to the panel member, a first light transmission portion provided in the panel member and through which the light from the light guide member transmits toward the first portion to be illuminated, and a second light transmission portion provided in the panel member to be farther away from the light source than the first light transmission portion and through which the light from the light guide member transmits toward the second portion to be illuminated, the second light transmission portion and the second portion extending along a longitudinal direction of the light exit portion. The light guide member and the second portion are provided to be closer to each other as they are farther away from the light source.

Abstract: The disclosure generally relates to efficient hollow light duct bends (200) that are capable of retaining a higher on axis transmission for partially collimated light propagating within a light duct (220, 230). In particular, the described hollow light duct bends (200) include input and output plates (214, 216) that have low reflectivity for near nonnal incident light, and high reflectivity for near grazing incident light.

Abstract: A method, an optical system and a lighting arrangement for homogenizing a bundle of light rays (110) by means of an elongated optical element (100) arranged for homogenizing light. The bundle of light rays is directed into a transversal entry face (101) of the optical element, and into at least one of the following geometrical regions: (a) a neighbourhood of the perimeter of the entry face; (b) a neighbourhood of at least a portion of a first line segment (R1) extending from the centre of the entry face to a mid-point of a vertex (123); (c) a neighbourhood of at least a portion of a second line segment (R2a) extending from the centre of the entry face to a midpoint of an edge (122).

Abstract: The invention provides a light uniform device and a digital light processing (DLP) projection system applying the said light uniform device. The light uniform device comprises a light incident surface, a light emergent surface and a light uniform portion defined therebetween. The light incident surface and the light emergent surface have a first contour and a second contour, respectively. And a first projection image of the second contour that is projected onto a projection plane forms a rotational angle about a longitudinal axial direction corresponding to a second projection image of the first contour projected onto the projection plane. Thereby, the light sources may simply be disposed in the projection system to provide uniform light beams that entirely cover the DMD (digital micromirror device) after being uniformed by the light uniform device. Neither of the light sources need to be inclined following with the DMD, nor is additional relay lens needed in imaging.

Abstract: An optical module includes a casing, a first light output unit that is fixed to the casing and generates a first light signal, a second light output unit that is fixed to the casing while an angle thereof is set to be different from that of the first light output unit and generates a second light signal having a wavelength different from that of the first light signal, a first branching filter that refracts at least any one of the first light signal and the second light signal so that optical axes of the first light signal and the second light signal are partially overlapped, and one isolator that is located at a portion where optical axes of the first light signal and the second light signal are overlapped and performs isolation on the first light signal and the second light signal.

Abstract: A traceable cable assembly comprises: a fiber optic cable including a cable jacket that encloses an optical fiber, and two conductive elements that are embedded spacedly in the cable jacket and that extend along the optical fiber; and multiple lighting units spacedly secured to the fiber optic cable. Each lighting unit includes a connecting seat provided with a light emitting element, and mounted to the fiber optic cable so that the light emitting element is connected electrically between the conductive elements through the connecting seat. A portable power device is detachably coupled to the connecting seat of one lighting unit for supplying a supply voltage to the light emitting element of each lighting unit through the conductive elements.

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 luminous multiple glazing unit of a door of furniture notably refrigerated includes a first sheet of mineral glass or organic glass, a second sheet separated from the first sheet by peripheral spacer, a peripheral light source with a source support, a light extraction device for extracting the guided light to form at least one luminous zone, the source support being in a housing surrounded by material, forming a framing, including an assembly element, covered by a cap, the cap and the diode support being removable from the glazing unit.

Abstract: This disclosure provides systems, methods and apparatus for providing a desired illumination pattern within a given plane. In one aspect, a light wash system can be configured to provide substantially even illumination on a wall or floor. The light wash system can use light-shaping optics such as a stack of optical films to provide a light wash system which is smaller than conventional light wash systems which utilize parabolic reflectors. The light wash system may include an internal retroreflector to allow a wider range of throw distances for the light wash system.

Abstract: An apparatus and method for coupling light from concentric illuminators into a light source in the form of a surface are disclosed. According to one embodiment, the apparatus comprises a plurality of concentric tubes, each tube including a light diffuser. The apparatus also has a sheet having a first edge with the plurality of concentric tubes placed along the first edge. Each tube of the plurality of concentric tubes diffuses light such that the light emanates in a predetermined pattern along the first edge of the sheet.

Abstract: According to one embodiment, a lighting apparatus includes a light source which includes a light emitting surface, and a light guide provided to be coaxial with an axis which extends along a direction perpendicular to the light emitting surface. The light guide includes: an incident plane facing the light emitting surface; an outer circumferential surface configured to protrude in a direction extending away from the light source so as to surround the axis from an outer periphery of the incident surface and so as to totally reflect light from the light source which is made to enter the light guide from the incident surface; and a hollow part provided at a position distant in the axis direction from the incident surface. The hollow part includes a first light diffusing surface parallel to an axis along which the light totally reflected on the outer circumferential surface is led.

Abstract: A vehicular illuminating device includes a first illuminating part configured to illuminate in a traveling direction of a vehicle, a second illuminating part configured to be able to emit light by using an illumination pattern different from that of the first illuminating part, and a control part configured to control the second illuminating part so that the second illuminating part can illuminate in a direction of a recommended route by using the illumination pattern different from that of the first illuminating part if a route guiding part is guiding the vehicle to a destination along the recommended route.

Abstract: An optical component has an elongate length extending between first and second ends and a width transverse to and substantially smaller than the length and extending between first and second sides. The optical component includes a refractive portion disposed between the first and second sides and extending along the length between the first and second ends, and a plurality of separate reflective portions. At least one of the plurality of separate reflective portions is spaced from the refractive portion and extending along the length between the first and second ends.

Abstract: An endoscope apparatus includes a body portion having a light source portion which emits illuminating light for illuminating an object, an insertion portion through which a light guide that guides light originating in the light source portion is inserted, having a distal end portion to which a plurality of adapters are attachable, and which can emit light originating in an LED from the distal end portion, an operation portion which is connectable to the body portion and has an adapter detection section that detects a type of an adapter attached to the distal end portion, and a CPU which controls the light source portion and the LED according to the type of the detected adapter.

Abstract: A light guide includes an incident surface, an exit surface and a reflective surface. The reflective surface is located opposite to the exit surface to extend in the main scanning direction and includes a plurality of light reflecting patterns formed to reflect the incident light toward the exit surface. The light reflecting patterns have an oval hemispherical shape rising toward the exit surface and a first diameter of the oval hemispherical shape along a sub-scanning direction is equal to or longer than a second diameter thereof along the main scanning direction. The light reflecting patterns are formed to vary the ratio of the first diameter to the height of the oval hemispherical shape depending upon the location on the reflective surface in the main scanning direction.

Abstract: A light guide includes: an incident surface, an exit surface and two reflective surfaces. The incident surface allows light emitted from a light source to be incident thereon. The exit surface extends in a main scanning direction and allows the incident light to exit the light guide therethrough. Two reflective surfaces are located opposite to the exit surface to extend in the main scanning direction and are configured to reflect the incident light toward the exit surface. One of the reflective surfaces includes a plurality of light reflecting patterns formed integrally therewith and having an oval hemispherical prism shape. The other reflective surface is a separate surface from the one reflective surface and is formed in a planar shape that enables attachment of a reflective member allowing the incident light to be reflected thereon toward the exit surface.

Abstract: A light source apparatus includes a light source, an optical fiber, and a positioning mechanism. The positioning mechanism is configured with a planar position adjustment mechanism, an axial line position adjustment mechanism, and an orientation maintaining mechanism. The planar position adjustment mechanism adjusts a position of the optical fiber in a direction following the light-emitting surface. The axial line position adjustment mechanism adjusts the position of the optical fiber in a direction intersecting with the light-emitting surface. The orientation maintaining mechanism holds the optical fiber in a state where an axis direction of the optical fiber lies in a predetermined intersecting direction with respect to the light-emitting surface.

Abstract: An illuminator is described which may be used with large inspection areas and which provides a dark field illumination pattern that is spatially uniform, illuminates from consistent angles, has high efficiency, and is smaller than existing solutions. A light pipe has a first end proximate an object to be illuminated and a second end opposite the first end and spaced from the first end. The light pipe also has at least one reflective sidewall. The first end of the light pipe includes an exit aperture and the second end has at least one opening to allow at least one image acquisition device to view the surface therethrough. At least one light source is configured to provide illumination in the light pipe. The object is illuminated by the first end of the light pipe by illumination at a selected elevation angle and substantially all azimuth angles.

Abstract: The light source unit comprises a light source emitting visible light and light of a non-visible wavelength; a rod-like light guide at the end of which the light source is provided and within which incident light from the light source is propagated in the long axis direction; a reflector that is linear along the long axis direction and provided on the contour surface of the light guide; and a support member encompassing the reflector and light guide, having a given width in the direction perpendicular to the long axis direction, and provided with an opening extending along the long axis direction. The reflector and support member are formed by a reflecting material containing a substance reflecting the light of a non-visible light wavelength and reflecting the visible light and light of a non-visible light wavelength.

Abstract: An illumination system comprises an arc lamp having a cathode and an anode which emit light from a hot spot. A dual paraboloid retroreflector comprising upper and lower halves intercept light emitted rearwardly from the arc lamp and reflects the intercepted light back towards the hot spot. The retroreflector is spaced from the hot spot at a distance such that light rays emitted from the hot spot which are incident on the upper or lower half are redirected to a corresponding surface of the other half and reflected back to the hot spot. The system may further include a main dual paraboloid reflector for redirecting output light from the arc lamp and retroreflector. Light emitted from the arc lamp is intercepted by a first half paraboloid reflector and collimated to be redirected toward to a corresponding surface of a second half paraboloid reflector member, so as to be reflected in a direction opposite to the arc lamp output.

Abstract: A reflective concentrating optical apparatus capable of efficient solar power collection and conversion is disclosed. A corrugated monolithic reflector or a modified Mersenne optical system with corrugated primary reflector concentrates sunlight with high irradiance uniformity and minimal optical loss, so that an optical fiber bundle or a high efficiency solar cell can be placed near the focal area for efficient light collection or solar-to-electrical power conversion. The solar cell is directly attached onto a phase-transition cooling apparatus comprising a heat pipe and a heat sink to keep the solar cell within a temperature range that enables high solar-to-electrical power conversion efficiency.

Abstract: An illumination system for a lithographic or inspection apparatus. A plurality of optical waveguides transmit radiation from the illumination source to an output. A switching system enables selective control of one or more subsets of the optical waveguides. An inspection method uses an illumination system and inspection and lithographic apparatuses comprise an illumination system. In one example, the optical waveguides and switching system are replaced by a plurality of parallel optical bandpass filter elements. The optical bandpass filter elements each only transmit a predetermined wavelength or a band of wavelengths of radiation. At least two of the parallel optical bandpass filter elements each being operable to transmit a different wavelength or band of wavelengths.

Abstract: An elongated LED lighting arrangement comprises an elongated fiberoptic light pipe having an exteriorly facing sidewall between its ends. The light pipe is constructed to promote TIR of light between the ends. A first LED light source is tuned to efficiently provide light within a wavelength range to the pipe. Light-extracting means are applied along the light pipe along the main path of TIR light propagation, and comprise down-converting means tuned to efficiently convert light rays from the LED light source within the wavelength range to lower-energy light rays at respectively longer wavelengths and light-scattering means for extracting from the pipe some light rays within the wavelength range without changing the wavelengths of the foregoing light. The light emitted by the down-converting means and the light-scattering means intermix to produce light, the majority of which has a composite color determined by the foregoing light emitted and the foregoing light extracted.

Abstract: A lighting device includes a light source, an elongated panel member, an elongated light guide member provided to the panel member, a first light transmission portion provided in the panel member and through which the light from the light guide member transmits toward the first portion to be illuminated, and a second light transmission portion provided in the panel member to be farther away from the light source than the first light transmission portion and through which the light from the light guide member transmits toward the second portion to be illuminated, the second light transmission portion and the second portion extending along a longitudinal direction of the light exit portion. The light guide member and the second portion are provided to be closer to each other as they are farther away from the light source.

Abstract: Illumination devices include a light source including a substantially planar light-emitting surface and an optical rod or optical taper disposed proximate to the substantially planar light-emitting surface to optically couple the optical rod and the substantially planar light-emitting surface.

Abstract: An annulus shaped luminaire includes an annular structure that includes one or more luminous panels, and transition structure that couples a support structure of the luminaire with the annular structure. The one or more luminous panels emit light that illuminates an area adjacent to the luminaire.

Abstract: A laser readable surveying rod is provided with adjustable lighting elements. More specifically, lighting elements, such as LED lights are provided along a length of a surveying rod such that laser readings may be taken at night or in dark conditions. Lighting elements may be translated along a length of a rod, particularly where it is desirable to illuminate only a portion of a rod and conserve valuable energy.

Abstract: A light guiding element includes at least one fixing element and a number of light guiding pipes positioned on the fixing element. Each light guiding pipe includes a light guiding portion and a light scattering portion. The light guiding portion includes a first side surface, and a receiving recess is defined in the first side surface. A refractive index of the light guiding portion is greater than that of air. The light scattering portion includes a second side surface, and a protrusion protrudes from the second side surface. A plurality of diffusion particles are uniformly distributed in the light scattering portion. A refractive index of the light scattering portion is greater than that of air. The protrusion is received in the receiving recess.

Abstract: In an illumination device that radiates light to an object to be irradiated placed on a predetermined placement surface, a first light guide body has a first incident surface located at an end thereof in a first direction, which receives light along the first direction, and a first exit surface extending along the first direction, which emits the light in a second direction crossing the first direction, thereby radiating light to the object to be irradiated, from the second direction, and a second light guide body has a second incident surface located at an end thereof in the first direction, which receives light along the first direction, and a second exit surface extending along the first direction, which emits the light in a third direction crossing the first direction and the second direction, thereby radiating light to the object to be irradiated, from the third direction.

Abstract: An irradiation module mechanically detachably attached to a light source module includes a first light source light entrance end which allows entry of first light source light from a first light source module, a first light guide member to guide the first light source light entered the first light source light entrance end, a second light source light entrance end which allows entry of second light source light from a second light source module, and a second light guide member to guide the second light source light entered the second light source light entrance end. The first light guide member and the second light guide member have optical specifications which correspond to optical characteristics of the light source light to be guided and in which the optical characteristics are different from each other.

Abstract: An illumination device includes a light guiding core, an optical film and a light emitting module. The optical film separately surrounds the light guiding core. A ratio of a diameter of the optical film to a diameter of the light guiding core is between 2 and 3. The light emitting module is disposed at one side of the light guiding core.

Abstract: A system includes multiple light emitting diodes (LEDs) and a light pipe configured to mix light from the LEDs and produce collimated light. The light pipe includes multiple reflective optical devices configured to reflect the collimated light at different angles. The light pipe also includes multiple outlet optical devices configured to selectively control exit of the reflected collimated light from the light pipe. The reflected collimated light has one or more controllable spectral characteristics and/or one or more controllable geometries of illumination.

Abstract: A light source for a crystal lamp has a light guide pillar, a light-emitting element, and a linear micro structure. The light guide pillar has a top surface, a bottom surface and a side surface, and the light-emitting element is disposed next to the bottom surface. The linear micro structure is formed on and surrounds the side surface, and the emitting light beams of the light-emitting element are reflected by or refracted through the linear micro structure to allow the linear micro structure to function as a thin-lined light source surrounding the light guide pillar.

Abstract: A light emitting apparatus includes a light emitting device, fixedly situated at a first position, to emit light at a wavelength, a first phosphor, fixedly situated at a second position, to radiate light with a first spectral characteristic out of the light emitting apparatus in response to irradiation by the light at the wavelength, and a second phosphor, fixedly situated at a third position, to radiate light with a second spectral characteristic out of the light emitting apparatus in response to irradiation by the light at the wavelength. An optical coupling mechanism is included to optically couple the light emitting device to the first phosphor and to optically decouple the light emitting device from the second phosphor in a first operating mode, and optically couple the light emitting device to the second phosphor in a second operating mode.

Abstract: Example methods and apparatuses to provide lighting in appliances are disclosed. An example refrigerator includes a compartment disposed within the refrigerator having first and second opposite side walls, a movable component disposed in the compartment, the movable component having a front edge, a light pipe extending along the front edge of the movable component, and a first light source positioned at the first side wall to emit light into a first end of the light pipe.

Abstract: An apparatus for illumination is provided. In one aspect, the apparatus comprises a light guide device including a hollow light pipe portion, an opening, and a distal end longitudinally opposite from the opening. The opening is configured to receive at least a portion of an illumination device therein. Either or both of the light pipe portion and the distal end has a textured surface thereof.

Abstract: The disclosure extends to methods, systems, and computer program products for controlled illumination in a light deficient environment.

Abstract: Illumination devices are described for illuminating a target area, e.g., floors of a room, using solid-state light sources. In general, an illumination device includes a first light guide extending along a first plane, the first light guide to receive light from first light emitting elements (LEEs) and guide the light in a first direction in the first plane; a second light guide extending along the first plane, the second light guide to receive light from second LEEs and guide the light in a second direction in the first plane opposite to the first direction; a first redirecting optic to receive light from the first light guide and direct the light in first and second angular ranges; and a second redirecting optic to receive light from the second light guide and direct the light in third and fourth angular ranges, where the first, second, third and fourth angular ranges are different.