Abstract: An illumination system includes a point light source array, a lens and a collimating lens. The collimating lens is disposed between the point light source array and the lens. The point light source array is suitable for emitting a planar light source and both the lens and the collimating lens are disposed on the optical path of the planar light source. Besides, the lens has two different focal lengths in a first axis and a second axis. The present invention further provides a projection apparatus employing the illumination system.

Abstract: Lighting apparatus for an image-gathering device, includes a light frame supporting a plurality of light emitting diode lamps configured to emit light at a tungsten balanced colour temperature, and a focussing frame comprising a plurality of light focussing lenses configured to focus light emitted from said light frame into an elliptical beam. The focussing frame is configured to focus light into an elliptical beam to complement a subject illumination area frame having a ratio 16:9. The light emitting diode lamps are configured to emit light at a colour temperature of 3200 Kelvin or 5600 Kelvin, and to emit light having a colour rendering index of 90. The focussing frame is releasably mountable to the light frame.

Abstract: The invention is a side-emitting illumination system that incorporates a light emitting diode. The side-emitting illumination system recycles a portion of the light internally generated by a light emitting diode back to the light emitting diode as externally incident light. The light emitting diode reflects the recycled light, thereby increasing the effective brightness of the light emitting diode. The light reflected by the light emitting diode is directed though the output aperture of the side-emitting illumination system, thereby increasing the output brightness and efficiency of the side-emitting illumination system. The light emitting diode reflects externally incident light with a reflectivity greater than 40 percent.

Abstract: A large area lighting system, adapted for high mast highway or stadium lighting, for example, includes one or more elongated frames supporting plural light fixtures and elongated light baffles comprising respective sets of spaced apart slats. The respective sets of slats are supported on elongated rods connected to light fixture frame members and the slats are separated by spacers sleeved over the rods. The slats may be oriented at various angles by manual or motor driven adjustment to control the light projection from the lighting system. The slats may also be non-reflective or provided with a mirrored finish to effect control of light projection and/or diffusion.

Abstract: An illumination device for simulating neon or similar lighting incorporates removable and interchangeable color conversion modules, thus allowing for emission of light in colors that cannot ordinarily be achieved by use of light-emitting diodes alone without significant increase in cost or complexity of the illumination device.

Abstract: A light emitting device including three light emitting sources and a phosphor, with the three light sources consisted of following light emitting diodes (LED) emitting lights having different wavelengths. Wherein, two light sources are used to excite the phosphor to produce a distinct wavelength different from those of the two light sources. The distinct wavelength is blended with portions of the two light sources and a light source from another independent light source, and a blended light is released to obtain a white light.

Abstract: The auxiliary light source has LED chips respectively emitting red lights arranged therein in an array shape, and has lens cells for parallelizing light arranged therein on the light exit side of the LED chips, for example. The LED chip is arranged in correspondence with each of lenses composing a pair of fly's eye lenses, and the pair of lenses introduces the light emitted from the LED chip into the whole surfaces of liquid crystal panels. A mixing mirror transmits white light emitted from a main light source and reflects light emitted from the auxiliary light source, and mixes the white light and the auxiliary light respectively emitted from both the light sources and introduces the mixed lights into the pair of fly's eye lenses.

Abstract: A backlight illumination system for illuminating a large area with light of a uniform color has a set of a pre-determined number of light emitters arranged along a straight line. The set is divided in a plurality of subsets, each subset including at least two light emitters. Each subset comprises light emitters with substantially the same light-emission color point, the respective subsets having color points different from each other. As a first step, the light emitters of the subset with a smallest number of light emitters are assigned to respective substantially equidistant positions. The light emitters of the set are assigned to the respective positions by iteratively starting with the subset with the smallest number of light emitters, assigning the light emitters of the subset to substantially equidistant positions which are not yet occupied. The backlight illumination system according to the invention has a uniform light and color distribution.

Abstract: A dual functional lamp includes a lamp shade, a dual light seat unit mounted in the lamp shade, and a dual light bulb unit mounted on the dual light seat unit and located in the lamp shade. Thus, the dual light bulb unit can emit optical rays outward to provide a warming and illuminating effect and can also emit ultraviolet rays outward, so that the single dual light bulb unit produces two different functions, thereby enhancing the versatility of the dual functional lamp. In addition, the dual light bulb unit is fully hidden in the lamp shade, so that the dual functional lamp has a smaller volume, thereby saving the space of storage, and thereby facilitating storage, package and transportation of the dual functional lamp.

Abstract: Color-changing apparatus, and an associated method, for a lighting assembly. One or more dichroic filters are selectably positioned in the path of a light beam generated by a light source. A positioner supportively positions the dichroic filter and effectuates its translation into and out of the path of the light beam. A set of dichroic filters, each separately supported by a separate actuating positioner permits a combination of dichroic filters to be combined to cause the light color of the light beam to be of any desired color.

Abstract: The present invention relates to a clip type light emitter, and in particular to a clip type light emitter capable of enhancing a visual field at night by detachably engaging a clip type light emitter to a leisure cap (including hat) generally used for a mountain climbing or fishing or travel or various sports. The clip type light emitter comprises a casing forming a body; a plurality of lamps provided at a front side of the casing at regular intervals; a switch part provided in one side of the casing; a battery provided in the interior of the casing; and a clip provided in an upper side of the casing and having one side end integrally engaged with the casing and having a certain elastic force, wherein the clip type light emitter is detachably engaged to a leisure cap (including hat) used for a mounting climbing, a fishing or various outdoor leisure and sports.

Abstract: The object is to provide a display device that is capable of displaying an image with high luminance and a wide color reproduction range under simple control. The display device includes a light source device that emits first to fourth illumination lights, a spatial light modulator that modulates the illumination lights, and a controller. The controller allows the first and the second illumination lights to time-sequentially enter an identical illumination area of the spatial light modulator, and allows the third and the fourth illumination lights to individually enter the spatial light modulator so as to avoid them from being superimposed on the first and the second illumination lights.

Abstract: An illumination apparatus for illumination of light by emitting light from LED for each of RGB colors capable of optionally setting a color temperature and controlling the brightness after the setting while maintaining the color temperature as it is, in which a light control circuit supplies a light control voltage for variably controlling the light quantity of the illumination light equally to each color setting circuit connected with LED of each color which is lit by a light quantity in proportion with a driving current and a color temperature setter of the color temperature setting circuit adjusts the light control voltage by a predetermined ratio to a control voltage, and a constant current circuit outputs a driving current in accordance with the control voltage to each LED for each of RGB colors.

Abstract: An illumination system according to the principles of the invention may include a first LED and a carrier material. The carrier material may be comprised of plastic, synthetic material, polymer, latex, rubber or other material. The carrier material may also contain a phosphor, fluorescent material, organic fluorescent material, inorganic fluorescent material, impregnated phosphor, phosphor particles, phosphor material, YAG:Ce phosphor, or other material for converting electromagnetic radiation into illumination or visible light.

Abstract: The present invention relates to a clip type light emitter, and in particular to a clip type light emitter capable of enhancing a visual field at night by detachably engaging a clip type light emitter to a leisure cap (including hat) generally used for a mountain climbing or fishing or travel or various sports. The clip type light emitter comprises a casing forming a body; a plurality of lamps provided at a front side of the casing at regular intervals; a switch part provided in one side of the casing; a battery provided in the interior of the casing; and a clip provided in an upper side of the casing and having one side end integrally engaged with the casing and having a certain elastic force, wherein the clip type light emitter is detachably engaged to a leisure cap (including hat) used for a mounting climbing, a fishing or various outdoor leisure and sports.

Abstract: A light source unit includes a substrate mounting a plurality of light emitting diodes (LED's) for irradiating beam to an object. The substrate is formed of a material having high heat conductivity and the unit includes a chip resistor mounted on the substrate and heat generation controller for heating the substrate with heat generated in the chip resistor upon supply of power to the chip resistor. The plural LED's are arranged in the form of an array on the substrate and a plurality of the chip resistors are arranged linearly along the array of LED's.

Abstract: A method of lighting to protect sea turtles comprises providing in a housing both a white light source, for example a low-voltage incandescent source, and a red LED source that is visible to humans but that does not interfere with the normal nesting and hatching behavior of sea turtles, and selectively energizing the latter source during turtle nesting season.

Abstract: An apparatus and method for strategically illuminating a darkened area. The present invention may be used by law enforcement to illuminate an area without law enforcement officials having to reveal their position, which is the case if flashlights or other lighting means are used. The light emitting device comprises a substantially transparent housing. A circuit comprising light emitting means and battery means is contained within the housing. The circuit further comprises a time delay means, which delays the energizing of the light emitting means. The circuit comprises a switch which, upon activation, closes the circuit providing current from the battery.

Abstract: A strip light includes one or more light assemblies each having a transparent, flexible, and elongated member including a plurality of enclosures with LEDs enclosed therein. A base having a plurality of enlargements is fitted in bottoms of the enclosures. A wire is electrically coupled to terminals of the LEDs. A connecting member is formed at both ends of the elongated member, with each connecting member having two opposite recesses on its surface. In assembly, one connecting member of a first light assembly is cut. The other connecting member of a second light assembly is pressed onto the enclosure of the first light assembly adjacent the cut connecting member until the recesses of the other connecting member of the second light assembly are seated on the connecting elements of the first light assembly. Then, the first and second light assemblies are electrically coupled together.

Abstract: A white light emitting device by using off-white light emitting diodes (LED's). Rather than using just pure white LEDs, the white light emitting device arranges those LEDs which exhibit off-white colors in a manner such that the combination of light emanating from these off-white LEDs produces a radiation which appears substantially pure white to the human eye.

Abstract: One embodiment of the invention provides a backlight for an LCD display. The backlight uses a two-dimensional array of single color or white LEDs and a diffusing or phosphor coated cover plate. Various electrical connections of the LEDs and various phosphor color-conversion techniques are described.

Abstract: A portable electric torch comprises a lighting module with light-emitting diodes, and optical transmission means mounted swivelling around a swivel pin securely fixed to the housing. The optical transmission means can be a colored filter or a lens able to be actuated with a limited swivelling movement between an inactive position away from the diodes and an active position situated facing the diodes. The swivel pin is horizontal being placed back from and under the diodes, and extends parallel to the direction of alignment of at least two diodes.

Abstract: A night vision system for a vehicle includes a pulsed light source for illuminating a region proximate the vehicle and a secondary trigger light source operating at a predetermined pulse timing and second wavelength. A light sensor detects light at the second wavelength. The trigger light pulses are used to indicate the pulse timing of each respective vehicle's primary NIR light source. Upon detecting another vehicle's trigger light source, the controller adjusts the pulse phase of the first light source to be exactly out-of-phase with that of the oncoming vehicle since the pulsed timing of the oncoming vehicle's NIR light source is known upon detection of the opposing vehicle's trigger light source. Each vehicle can then adjust its primary light source to be out-of-phase with the other vehicle and, hence, non-interfering.

Abstract: A linear light source (A) including an insulating substrate (1), a plurality of light emitting elements (3) arranged in columns on the substrate (1), a wiring pattern (2) connected with the light emitting elements (3) and co formed on the substrate (1) so as to divide the light emitting elements (3) into a plurality of groups (B1 to Bn), and first and second terminal units (23a, 23b) in continuity with the wiring pattern (2). The plurality of light emitting elements (3) define a plurality of clearances (P1 to P2?1) between adjacent light emitting elements, the clearances (P P1 to P2?1) being adjusted so as to have different lengths.

Abstract: A light emitting diode (LED) light bulb that includes plural individual elements as sub-assembly elements of the overall light bulb. Different sub-assembly elements of a lens, a LED printed circuit board, a housing also functioning as a heat sink, a lower housing, and other individual sub-assembly components are utilized. The LED printed circuit board sub-assembly containing the LEDs can also be provided relatively close to a base.

Abstract: An interior lighting system for a motor vehicle includes a lighting device configured to light a motor vehicle interior and a control unit configured to regulate the brightness and/or the color of the light emitted from the lighting device. The color of the light emitted from the lighting device may be automatically adjusted in accordance with at least one operating parameter and/or at least one parameter associated with the environment of the motor vehicle. Such parameters include, for example, a deviation of an actual temperature from a predetermined desired temperature of the motor vehicle interior and/or the driving speed of the vehicle.

Abstract: A first set of orange LEDs with a peak wavelength emission of about 612 nanometers, a second set of red light emitting LEDs with a peak wavelength of about 660 nanometers, and blue light LEDs. Two beam spreads, 15° and 30°, were provided for both the 660 nm LEDs and 612 nm LEDs. When directed perpendicularly upon tops of the plant leaves, 10% light transmission occurred through the leaves for the 30° LEDs, and 80% light transmission for the 15° LEDs. Thus, fully 50% of the orange/red spectrum primarily used for photosynthesis was transmitted through the upper leaf canopy, making it available to support photosynthesis in leaves below. LED lamps are positioned at varying distances from the growing plants for controlling plant growth rates that vary with these distances, thereby to control plant inventory, because growth of plants can be greatly slowed to preserve them during periods of slow sales.

Abstract: A headup display having an image forming unit 1 f or forming an item of image information to be displayed that can be projected as light beams 2 by the image forming unit 1 or via an optical projection system onto a partially reflecting windshield pane 7. The image forming unit 1 has an OLED display 8 for forming the image information displayed, in front of which there is arranged a light directing element 14 by which the light beams 2 produced by the OLED display 8 can be directed approximately parallel to one another.

Abstract: A luminaire includes a frame member, an inner panel, light emitting diodes (LEDs), an information carrier, and two outer panels. The inner panel has two surfaces and edges that join the two surfaces such that the inner panel is able to reflect light substantially perpendicularly to its two surfaces. The LEDs are arranged along at least one edge of the inner panel and are detachably attached to the frame member. The information carrier is associated with at least one surface of the inner panel. The two outer panels are associated with the two surfaces of the inner panel. To protect the luminaire against environmental influences and at the same time to maintain the optical appearance of the luminaire, the inner panel and the two outer panels are held by the frame member for water-tight encapsulation.

Abstract: A pen-size inspection lamp for detecting fluorescent leak detection materials in hard-to-reach areas. The inspection lamp includes a housing, an extendible handle, at least one LED and a mirror assembly. The mirror assembly includes a mirror, a clip for attaching the mirror to the housing, and an arm extending between the clip and the mirror with a hinge connection for rotating the mirror to different reflection angles with respect to the LED.

Abstract: Illumination of a portion of a vehicle interior is provided by an interior rearview mirror assembly incorporating a solid-state light source comprising a light emitting diode (LED) which emits light generally downwardly from the assembly. In one form of the invention, the mirror case of the rearview mirror assembly includes at least one of an opening, a light conduit, and a fiberoptic element through which the LED emits light. In another form, the LED preferably has a luminous intensity of at least 500 mcd when operated at a forward current of 20 mA. The LED preferably has a dominant wavelength of at least about 530 nm. The light emitted by the LED may be selected from green, orange, yellow, amber, reddish-orange, red and blue. The vehicle interior portion may include at least one of a shift lever console and a floor console.

Abstract: A back lighting system for illuminating a display device comprises a light-emitting panel (1) and a light source (6) for coupling light into the light-emitting panel. The light source comprises a low-pressure discharge lamp (6; 7). The light source additionally comprises a plurality of LEDs (8, 8?, . . . ; 9, 9?, . . . ) for selectively setting the color temperature of the light emitted by the light source. Preferably, the LEDs increase the color temperature of the light emitted by the light source. Preferably, the light emitted by the back lighting system ranges from 6,000 to 10,500 K. Preferably, the LEDs are blue light emitting LEDs, each preferably having a luminous flux of at least 5 lm. The color point of an image to be displayed on a display screen of the display device is set by the back lighting system, thus enabling an optimum contrast to be achieved for the image to be displayed by the display device.

Abstract: Disclosed is a full-color light emitting device with four leads in which three light emitting diode chips thereof having different light emission wavelengths can be individually controlled to realize emission of light beams of more diverse colors, while having a simplified connection structure, so that the light emitting device can be implemented even in the case in which a limited bonding area is provided. The device includes first through third sub-lead frames respectively having first through third leads, a main lead frame having a fourth lead, and a reflecting cup formed at one end of the fourth lead, and first through third light emitting diodes (LEDs) of different light emitting wavelengths mounted on a bottom surface of the reflecting cup. Each of the LEDs has first and second electrodes of different characteristics. The first electrode of the first LED and the first electrode of the second LED are commonly electrically connected to the first lead of the first sub-lead frame.

Abstract: An illumination system has a light source and a wavelength conversion layer within a light-recycling envelope. The light source is a light-emitting diode or a semiconductor laser. The light source will emit light of a first wavelength range that is transmitted through the wavelength conversion layer in order to convert a portion of the light of a first wavelength range into light of a second wavelength range. Light of both the first and second wavelength ranges will exit the light-recycling envelope through an aperture. The recycling of the light by the light-recycling envelope will enhance the output radiance and luminance of the light exiting the illumination system.

Abstract: A light emitting apparatus includes a light guiding member that projects light, incident on an end face thereof, through a principal plane; and a plurality of light emitting diodes that are optically coupled with the end face. The light guiding member has a protruding surface formed in part of the end face thereof and comprises a first light introducing portion that is formed on the protruding surface and is optically coupled to a first light emitting diode, and a second light introducing portion that is optically coupled to a second light emitting diode and is formed on the rest of the end face. The first and second light emitting diodes are capable of emitting color-blended light having two or more peaks in the spectrum.

Abstract: An efficient redundant light distribution system includes redundant light generation enclosures providing light to a collector array 10, coupled to an ultraviolet to red converter 20, a combination array 30, a distribution array 40 and multiple projection lenses 4.

Abstract: In a cycle having a bolt integrally secured to a cycle main frame or an engine block of the cycle, the bolt projecting transversely from the cycle relative to a vertical plane of symmetry, a novel cycle frame slider includes an elongate hollow cylinder having an internal diameter, an outside diameter and an annular region, the cylinder formed of a durable optically transmissible polymer, the cylinder having a proximal end and a distal end, the proximal end of the cylinder proportioned for securable engagement with the bolt, the cylinder having an axial length in a range of about 10 to about 15 centimeters. The slider also includes a plurality of light-emitting elements circumferentially secured within and about the proximal end of the hollow cylinder, the light-emitting elements providing for control of on-off cycling and blinking, the light-emitting elements in optical communicating with the annular region of the cylinder.

Abstract: An LED lamp including a circuit substrate (22) on which an electrode pattern is formed, a reflecting frame (31) including a tapered concave portion (32) having an inner peripheral surface broadening toward an upper end of the reflecting frame, a light emitting unit (27) disposed on a central portion of the concave portion (32), an air layer (40) disposed above the light emitting unit (27), and a lens body (44) provided through the air layer above the reflecting frame (31), the reflecting frame being provided with an air hole (45) for communicating the air layer with an outside area of the LED lamp.

Abstract: A lighting device (1) includes one or more diode light sources (32), which are configured to emit light into the peripheral edges of a light guide (20). The light guide (20) includes a set of diffusing elements (22) for scattering the emitted light in a plurality of directions out of the front surface of the light guide (20). The diffusing elements (22) are distributed on the light guide (20) so that the scattered light achieves a particular characteristic, e.g., improved uniformity.

Abstract: Light source devices for photography using LED elements as a light source known in the prior art provide insufficient quantity of light, and the inability to avoid size increases in order to generate a sufficient quantity of light has been problematic. A photography light source device 1 according to the present invention has a light source comprising a plurality of LED elements 2 generating white light or light of the three primaries and arranged in one or more rows parallel with the direction of the longer side of the photograph, a case 3 having a lens on which linear fresnel cuts 3a have been applied in a linear direction parallel to the arrangement direction is mounted on the LED element 2, and upon lighting of the LED element 2, drive is performed with a current of between 3 and 50 times the magnitude of the rated current thereof and a lighting duration of between 10 and 600 msec.

Abstract: A light source unit includes a substrate mounting a plurality of light emitting diodes (LED's) for irradiating beam to an object. The substrate is formed of a material having high heat conductivity and the unit includes a chip resistor mounted on the substrate and heat generation controller for heating the substrate with heat generated in the chip resistor upon supply of power to the chip resistor. The plural LED's are arranged in the form of an array on the substrate and a plurality of the chip resistors are arranged linearly along the array of LED's.

Abstract: A selectable lighting system and method that uses multiple cool burning compact fluorescent light bulbs of different color temperatures to provide lighting that is a mix of different color temperatures that can be selected and/or mixed to illuminate subjects of video or photographic recording as desired by the videographer. The mix of different color temperature bulbs also makes this lighting system very beneficial as a reading light, a general purpose work light or detail work task light.

Abstract: A color coded home visitor greeting lamp system comprises a circuit board having an electric port with the circuit board connected to a controller, a light bulb having a bulb base detachably mounted in the port where the light bulb is blinkable under control of the controller, a flashing member removably provided between the bulb base and the port, and a substantially transparent covering detachably mounted over the board. The covering has hook rails and slide panels so that the slide panels are detachably slid in the hook rails.

Abstract: A solid state area illumination light source includes: a substrate; a plurality of non-pixellated organic light emitting diode (OLED) segments deposited on the substrate, each organic light emitting diode segment including a first and a second electrode for providing electrical power to the OLED segment; an encapsulating cover covering the OLED segments; and a plurality of conductors located on the substrate and electrically connected to the first and second electrodes, and extending beyond the encapsulating cover for making electrical contact to the first and second electrodes by an external power source.

Abstract: A light emitting diode assembly consisting of separate dies, individually mounted or commonly packaged into one assembly providing an energy spectrum compliant with a night vision imaging system standard, such as NVIS Green A class A. The light emitting diode combination or assembly does not require any external filtering and/or fluorescent material to achieve the NVIS Green A class A chromaticity and radiance requirements. An optical filter absorbing part of visible energy to improve radiance performance. A conformal coating including an absorbing agent for filtering small infrared emissions may be used for improving compliance performance. Use of light emitting diode with conformal coating with absorbing for compliance to NVIS Green B, class A.

Abstract: An exit sign comprising a housing and a plurality of red and green color LEDs having the capability of being selectively activated to produce either red light or green light. The plurality of LEDs are mounted in a mutual lighting association in the housing. A switch is manually operable to selectively activate the plurality of red color LEDs to produce the red light and in the alternative, to selectively activate of the plurality of the green color LEDs to produce the green light. Means for passing light from the selected red light or selected green light in the form of indicia symbolizing an exit enables viewing by an observer, such means include a stencil having four independent letters forming the word EXIT. DC circuitry is in operative electrical connection with the plurality of LEDs. A source of DC electrical power activates the DC circuitry.

Abstract: A LED package including an LED that emits excitation light at an excitation light wavelength and a layer of phosphor material positioned to receive the excitation light and having a first index of refraction at the excitation light wavelength. The phosphor material emits visible light at a visible light wavelength when illuminated with the excitation light. An interference reflector is positioned adjacent to the layer of phosphor material and a TIR promoting layer is in contact with the layer of phosphor material. The TIR promoting layer has a second index of refraction at the excitation light wavelength that is less than the first index of refraction at the excitation light wavelength.

Abstract: A light emitting diode assembly consisting of separate dies, individually mounted or commonly packaged into one assembly providing an energy spectrum compliant with a night vision imaging system standard, such as NVIS Green A class A. The light emitting diode combination or assembly does not require any external filtering and/or fluorescent material to achieve the NVIS Green A class A chromaticity and radiance requirements. An optical filter absorbing part of visible energy to improve radiance performance. A conformal coating including an absorbing agent for filtering small infrared emissions may be used for improving compliance performance. Use of light emitting diode with conformal coating with absorbing agent for compliance to NVIS Green B, class A.

Abstract: The invention concerns lighting means compatible with a light-intensifying night vision imaging system, comprising at least an electroluminescent source of polychromatic white light (15) with high radiant energy in violet/blue wavelength band of and with low residual energy in red wavelength band.

Abstract: A lighting system suitable for chromatherapy includes a plurality of light fixtures mounted through walls of a tub basin to project different color light into the water in the tub. The light fixtures are operated by a central control unit and each includes a housing having a concave internal surface. An array of light emitting diodes that project different color light is mounted under a cap covering one end of the housing. A lens is threaded onto the opposite end of the housing from within the tub basin to secure the light fixture to the tub. The concave surface has the different color light projected on it, and reflects light out the light fixture in mixed fashion.