Abstract: A straw holder for supporting a drinking straw in the mouth of a bottle is presented. The holder includes a straw support portion dimensioned for placement across the mouth of a bottle. The straw support portion includes an aperture designed to receive a straw therethrough and to vertically support the straw with respect to the support portion. The holder further includes a bottle retaining portion that includes at least one turn extending around the retaining portion. The at least one turn includes a first turn having an end attached to the straw support portion.

Abstract: A projection type video display is provided with three LED light sources. Lights emitted from each LED light source are guided into a light incidence surface of a rod integrator by a cross dichroic mirror. In a first light incidence area (an area opposite to a LED light source in red) of the cross dichroic mirror, a first dichroic mirror is provided, and in a second light incidence area (an area opposite to a LED light source in blue) of the cross dichroic mirror, a second dichroic mirror is provided. The first dichroic mirror transmits the light in red and reflects lights in other colors, and the second dichroic mirror transmits the light in blue and reflects lights in other colors.

Abstract: A light-mixing module includes a luminous panel having a plurality of red, green, and blue illuminants arranged alternately, at least one corner being formed in an area defined by the arrangement of the illuminants, a predetermined illuminant being located at the corner; at least one mask located above the luminous panel and over the corner for attenuating the light emitted therethrough from the predetermined illuminant thereunder and having a transmittance preferably lower than 90%; and a light-mixing panel located above the luminous panel and the mask. The light emitted from the illuminants passes through the light-mixing panel for mixture to generate required colored light and then to emit outward. Accordingly, the mask prevents the predetermined illuminant from displaying a weighted color, thus attaining the potency of even light mixture.

Abstract: In one embodiment, a light emitting panel includes a base panel and a plurality of light emitting elements mounted to the base panel. Each of the light emitting elements produces an illumination pattern having a region of substantially uniform intensity that extends over a radiation angle of at least about 60°. One or more light conditioners are positioned adjacent the base panel to receive and condition light produced by the light emitting elements.

Abstract: Methods and systems are provided herein for illuminating a variety of household products and other items using color-controlled illumination systems that include lights under the control of processors.

Abstract: An illuminator with blue and red LEDs, a reflector upstream of the LEDs for capturing upstream light emitted out of the back surfaces of the LEDs and redirecting downstream as useful illumination, a band pass filter for conditioning the downstream light, a phosphor layer for changing the spectral properties of light from the LEDs, and a non-imaging concentrator for creating a beam of illumination over a predetermined solid angle, uniformity, and spectral content.

Abstract: Provided herein are methods and systems for preparing signs and displays. The methods and systems include using a light engine for generating light of a plurality of colors to illuminate the body of a flexible conduit that receives light from the light engine. The conduit can be used as a sign, display, or similar lighting facility in many applications that traditionally used neon signs and displays.

Abstract: A backlight module (20) includes a light guide plate (200) and a light source (10). The light guide plate includes a light incident surface (220) opposite to the light source. The light source includes a plurality of multicolor based LEDs (120) and the LEDs each includes a plurality of LED chips (120A/B/C). The light source can achieve colored light beams with fewer LEDs, and no color filter is needed in the backlight module or a liquid crystal display using the light source. Thus, the cost of the backlight module can be reduced.

Abstract: A display comprises a backlight comprising different colored light sources, a transmissive display panel positioned adjacent to the backlight, and a light guide positioned between the backlight and the transmissive display. The light guide directs light from the different colored light sources onto the transmissive display to create an alternating array of colors.

Abstract: An illumination system including a light guide element and at least one light source device is provided. The light source device includes a first light combination module disposed near the light guide element and having a first filter film, a second light combination module having a second filter film, at least one first light source, at least one second light source and at least one third light source. There is a gap between the first and second light combination modules. A first light from the first light source is reflected to the light guide element by the first filter film, and a second light from the second light source and a third light from the third light source pass through the first filter film. The second light is reflected to the light guide element by the second filter film, and the third light passes through the second filter film.

Abstract: A light-mixing type light-emitting apparatus comprises a plurality of light-emitting diodes (LEDs) formed on a transparent carrier, wherein each of the LEDs with a transparent substrate emits light of a distinct color when driven, and the light beams generated from the LEDs are mixed to form a specific color. The transparent carrier setting forth in the present invention provides a mixing zone underlying the plurality of LEDs for the light beams to mix uniformly so as to improve the light-mixing efficiency of the light-emitting apparatus and shorten the mixing distance.

Abstract: Disclosed herein are cove lighting apparatus for architectural surfaces, particularly, recessed cove lighting apparatus integrated with an architectural surface and employing LED-based light sources.

Abstract: A flashlight having an elongated body having opposed first and second ends. A first lamp is a high-intensity variable brightness white light source located at the first end. A number of additional lamps are positioned at the first end. The additional lamps include at least two different output wavelengths different from each other and from the first lamp. A first switch on the flashlight selectively operates to select the output wavelength of the flashlight by selectively enabling different lamps based on the condition of the switch. A power storage element and control circuitry are connected to the lamps and to the switch.

Abstract: A blood tracking system, comprising a light source comprising a first LED configured to emit light of a first color and a second LED configured to emit light of a second color is disclosed. The light of the first color and the light of the second color are mixed to appear as light of a third color when the first LED and the second LED are activated; and wherein the light of a third color is effective for highlighting blood. A method of highlighting a red material comprising illuminating the red material with both red and blue light is also disclosed.

Abstract: An aquarium lighting system includes an LED array that includes multiple white light LEDs and multiple blue light LEDs. A control system separately controls a) the intensity of white light output by the white LEDs, and b) the intensity of blue light output by the blue LEDs.

Abstract: A light-emitting diode light source system includes a plurality of light-emitting diode modules for providing light beams; a light-combining unit including a plurality of light incident sides and a light emerging side, the light beams from the light-emitting diode modules entering the light-combining unit via the light incident sides, respectively, and emerging out of the light-combining unit via the light emerging side; a plurality of primary lens units disposed between the light-emitting diode modules and the light incident sides, respectively; a secondary lens unit disposed to confront the light emerging side; and a focusing lens disposed adjacent to the secondary lens unit, the secondary lens unit being disposed between the light-combining unit and the focusing lens, the light beams from the light-emitting diode modules passing through the primary lens units, the light-combining unit, the secondary lens unit and the focusing lens to be projected onto a light valve.

Abstract: A surface supported area lighting media assembly device comprises an illumination device to provide light of selected colors including white light by means of a chemiluminescent light emitting element or an LED light emitting assembly element and a reusable support element. The support element is configured for insertion into a support surface in a desired support orientation surface and includes a surface insertion spike and a stick receiving portion. The chemiluminescent element or LED element and the support element releasably engage one another to support the chemiluminescent element or LED element in the desired orientation when the support element is inserted into the support surface. The chemiluminescent element or LED element can be disengaged from the support element for replacing the chemiluminescent element or the LED element.

Abstract: A backlight device for a liquid crystal includes a substrate, a light source including a first plurality of green light emitting diodes, a second plurality of blue light emitting diodes, and a third plurality of red light emitting diodes arranged along a first row direction on the substrate in an offset matrix-type configuration, wherein white light emitting diodes are disposed at both ends of the configuration of the green, blue, and red light emitting diodes.

Abstract: A surface lighting device including, a surface light source in which light-emitting element groups having three light-emitting elements, which correspond to three primary colors of light, arranged to be continguous with vertexes of a triangle are arranged in a matrix shape; a substrate on which the light-emitting element groups are arranged; and a diffusion plate which is located above the surface light source. the light-emitting element groups are arranged to be deviated every other column or row such that a positional relation among the light-emitting element groups is a delta shape. Additionally, a row interval, a column interval, and an arrangement angle of the light-emitting element groups are adjusted such that, when it is assumed that an average amount of light calculated from a sum of amounts of light of the respective single color light-emitting elements at a center of gravity of the delta shape and a center of gravity of a diamond shape formed by two delta shapes is between 75% and 125%.

Abstract: The disclosed embodiments relate to a system and method for projecting video onto a screen. A video unit (10) comprising a first component (30) configured to create a first beam of light with a first polarity, a second component (40) configured to create a second beam of light with a second polarity subsequent to the creation of the first beam of light, and a third component (42) configured to allow the first beam of light pass through it without a change of polarity and to change the polarity of the second beam of light to the first polarity.

Abstract: An exemplary backlight module (2) includes a light source (21) having at least two light emitting diodes (211), and a reflection layer (218). Each light emitting diode includes a top surface (214), a side surface (215) adjacent to the top surface. Each of the light emitting diodes configured to emit different colored light respectively. The reflection layer is formed on the top surface of the light emitting diode.

Abstract: A clearance lamp serving as a vehicle indicator lamp and a heterochromous lamp having a light source emitting light of a color different from a color of a light source of the clearance lamp are disposed adjacent to each other. A light source employing light emitting diodes, a reflector reflecting light emitted from the light source, and a diffusing lens transmitting and diffusing the light reflected by the reflector are disposed in the clearance lamp. At least a part of the reflector of the clearance lamp is formed as an upright wall portion serving as an interface with the heterochromous lamp.

Abstract: The present invention relates to an improved countermeasure for circadian and sleep disruption as caused by a traditional alarm clock. It incorporates a lighting system at the alarm clock that, prior to the preset waking time, will emit a light that gradually increases in intensity as it changes the ultraviolet spectrum of light it emits, so as to simulate the rising sun. This will ease the waking process for many people, especially those prone to simple disruptions of their circadian regulation. It may also be set to operate in a reverse mode so as to simulate the setting sun thus helping stimulate melatonin production and easing one into sleep.

Abstract: A display device includes a first light source for emitting first light in blue, a second light source for emitting second light, and a color filter. The filter has a translucent sheet, a first printed area part for passing the first light to provide a first display excluding an overlapped portion of the first display and a second display and preventing the second light from passing therethrough, a second printed area part for passing the second light to provide the second display excluding the overlapped portion and preventing the first light from passing therethrough, a third printed area part for dimming and passing the first and second lights to provide the overlapped portion, a background printed area part for preventing the first and second lights from passing therethrough, and a white light converting part for the first light passing therethrough into white light.

Abstract: The multi-color light lamp has a base divided into a plurality of segments. The three segments are spaced at 120 degrees. More or less segments can be used. An LED is positioned in each segment, the LED in each segment emits a color distinct from the light emitted by the LEDs in the other segments. If the lamp is to be used for automotive purposes, the LED in a first segment emits red light as a taillight and a stop light, the LED in a second segment emits yellow light a turn signal lamp, and the LED in the third segment emits white light as a backup light. A light pipe is operatively associated with the LEDs in each segment for directing emitted light away from the base. The LEDs (preferably two per segment) are mounted upon a thermally efficient printed circuit board such as a flex-on aluminum board.

Abstract: A backlight unit and a liquid crystal display having the backlight are provided. The backlight unit includes a plurality of light emitting diode (LED) chips, a light guide plate for converting light generated from the LED chips into surface light, and a plurality of optical guide modules corresponding to the respective LED chips and disposed between the LED chips and the light guide plate.

Abstract: Illumination methods and apparatus, in which a first number of first light sources are adapted to generate first radiation having a first spectrum, and a second number of second light sources are adapted to generate second radiation having a second spectrum different than the first spectrum. In one example, the first number of the first light sources and the second number of the second light sources are different. In another example, a first intensity of the first radiation and a second intensity of the second radiation are independently controlled so as to controllably vary at least an overall perceivable color of generated visible radiation. In yet another example, a first control signal controls all of the first light sources substantially identically, and a second control signal controls all of the second light sources substantially identically.

Abstract: An exemplary light source array (230) includes at least one light source bar (33), each light source bar comprising a plurality of light source unit (35), each light source unit (35) has a first color LED (351), two second color LEDs (353) and two third color LEDs (355). The two second color LEDs and two third color LEDs are respectively disposed at two sides of the first color LED, and two adjacent LEDs in each light source bar have two different colors.

Abstract: An optimal processing portion (21) inputs a video signal (RGB signals) and analyzes 1-frame video in the video signal. For example, if the intensity of red color is 0 percent in all dots in 1-frame video, the optimal processing portion (21) applies to a light source gain adjustment portion (22) a control signal for rendering a gain of the illuminating device (1R) 0 percent (minimum amount of light). The light source gain adjustment portion (22) receives the control signal and controls power supply to the illuminating device (1R). In addition, the optimal processing portion (21) applies a driving instruction for rendering the amount of light transmission 0 percent with regard to all dots of the liquid crystal display panel (3R), for example, to a LCD signal processing portion (23).

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: The invention provides a multicolor LED light source for transmitted light illumination compatible with most microscopes. The light source provides spatially and angularly uniform monochromatic illumination in red, green, or blue color, or in their combinations. Switching of wavelengths is very fast, which is desirable for automated scanning of specimens. The light source is inexpensive and compact; it can be accommodated in the condenser space of a typical microscope, eliminating standard white light source, condenser and light filtering device. The invention also provides different means of shaping light for illumination of microscopic specimens. The invention also provides a method for acquiring full color images with the present light source and a monochrome camera.

Abstract: An illumination device simulates neon lighting using a light source for emitting light of a predetermined first hue and a light-transmitting medium having a predetermined density of phosphorescent dye positioned adjacent to the light source. The phosphorescent dye will absorb light emitted by the light source and emit light of a second hue. An observer of the device perceives light that is of a hue that is different from the predetermined first hue. A means for varying the intensity of the light emitted by the light source creates color changing effects in the illumination device. Light-emitting diodes (LEDs) are a suitable light source. A waveguide having both optical waveguide and light scattering properties is used to diffuse the combined light and simulate the uniform appearance of a neon tube. Alternatively, the waveguide itself can be doped with phosphorescent dye to emit light having the perceived hue.

Abstract: An illumination device has a light source, a waveguide, and a light-transmitting medium. The light source emits light of a first color. The waveguide has both optical waveguide and light scattering properties. The light-transmitting medium is composed of a matrix of substantially translucent material doped with a pigment, and is positioned between the light source and the waveguide such that a portion of the light emitted by the light source passes around the light-transmitting medium and reaches the waveguide directly, and a portion of the emitted light is received by the light-transmitting medium. The pigment changes a portion of the received light to a light of a second color. The waveguide receives and mixes the light of the first color and the light of the second color, and emits light of a combined color.

Abstract: One embodiment of a system for illuminating multiple LEDs has a plurality of LEDs and a controller programmed to provide a plurality of serial binary signals, each of which drives a respective one of the plurality of LEDs. Each of the serial binary signals has a series of pulses with each of said plurality of LEDs emitting light during each pulse of its respective one of the serial binary signals. The emitting intensity of each of the plurality of LEDs depends on the number of pulses in its respective one of the serial binary signals, wherein the light from the plurality of LEDs combines to emit a color of light.

Abstract: In addition to the effect of harmonized illumination and increased heat radiation, a LED illumination lamp provides an improved effect of hermetic seal, anti-vibration and waterproofing between components and assures prolonged life span. The illumination lamp comprises a body adapted to be placed on or around a target illumination object, a LED module lying inside the body and a cover mounted on a seat part of the body. The LED module has a printed circuit board affixed to the body and a group of red, green and blue LEDs attached to the printed circuit. The cover is provided with a semitransparent color-producing part capable of harmonizing colors of the light emitted from the LEDs and an air passageway for permitting the heat generated from the LED module to dissipate to the outside.

Abstract: The present invention provides a system and method for the diffusion of illumination from discrete light sources such that the illumination is blended and directed in one or more desired directions. The illumination system comprises a substrate having a plurality of light-emitting elements thereon which are arranged in an array, wherein these light-emitting elements produce illumination at one or more wavelengths. Proximate to the light-emitting elements is a diffuser, which collects the illumination produced by the discrete light-emitting elements and redirects this illumination in one or more predetermined directions, thereby blending together the one or more wavelengths of illumination and concentrating the illumination in the predetermined directions. The illumination system further comprises a power system, which provides energy to the light-emitting elements thereby resulting in their activation.

Abstract: Methods and apparatus for generating essentially white light. In one example, a white light generating apparatus comprises at least one first white LED characterized by a first spectrum, and at least one second white LED characterized by a second spectrum, wherein the first spectrum is substantially different than the second spectrum.

Abstract: An illuminated indicator is disclosed. The illuminated indicator includes graphics disposed on a rear surface of a lightpipe and a housing that supports the rear surface of lightpipe. The housing defines an outer perimeter light channel. The illuminated indicator also includes a plurality of light sources that are disposed about the outer perimeter light channel. The outer perimeter light channel directs light from the plurality of light sources to an outer perimeter edge of the lightpipe to evenly illuminate the graphics.

Abstract: A backlight assembly that improves color uniformity is presented. The backlight assembly includes a plurality of point light sources, an optical member on the point light sources, and a reflecting plate that is positioned to receive light that is reflected by the optical member. The point light sources includes a red light emitting diode generating red light, a green light emitting diode generating green light, and a blue light emitting diode generating blue light. The optical member transmits white light formed by mixing at least some of the red, green and blue lights and reflects the untransmitted portion of the red, green and blue lights. The reflecting plate, which receives the reflected light from the optical member, includes a plurality of patterns that reflect the incident red, green and blue lights, essentially “recycling” the light that did not get transmitted in the first pass.

Abstract: A portable light source has a base, an attachment mechanism adapted for removably attaching the base to a surface, and a substantially tubular arm pivotally connected to the base such that it can pivot between a horizontal position and a vertical position. A white light source and an ultraviolet light source are positioned within the arm and operably connected to a rechargeable battery to emit white light and ultraviolet light in outward directions from the arm.

Abstract: A light source arrangement has a first light source, a second light source and a dichroic mirror. The dichroic mirror is disposed with the first and second light sources and configured to reflect a predetermined portion of the light emitted from the first light source and to transmit the remaining portion. The dichroic mirror is also configured to reflect light emitted from the second light source so that it propagates in the same direction as the remaining portion of the light from the first light source which is transmitted through the dichroic mirror.

Abstract: A signal lantern has an emitting assembly and a handle. The emitting assembly has multiple light emitting diodes that may generate lights in different colors. The handle has a front end, side and multiple buttons. The emitting assembly is mounted on the front end of the handle has. The buttons are mounted on the side of the handle and the number and colors of the buttons correspond to the colors of the lights emitting from the emitting assembly. The signal lantern can be held and the color of light of the emitting assembly can be changed with one handle.

Abstract: A backlight assembly includes at least one backlight sub-unit, the backlight sub-unit including a light emitting diode (LED) unit that includes at least one LED that emit a predetermined color arranged in a predetermined pattern and a sidewall surrounding the LED unit.

Abstract: A LED light source is formed of a plurality of LEDs (light-emitting diodes). Primary optical axes of respective LEDs are set to be perpendicular to the plane surface (LED arranging plane surface). A first LED light source emits a light in red, a second LED light source emits a light in green, and a third LED light source emits a light in blue. An optical member has a first dichroic mirror portion and a second dichroic mirror portion alternately arranged, and the mirror potions inclined and arranged so as to form a saw-tooth appearance. Both the first dichroic mirror portion and the second dichroic mirror portion are designed to transmit the light in blue, and reflect lights in other colors.

Abstract: An LED signal using a novel optical element to control the light distribution of a small LED light source. Light emitted by the LEDs illuminates the optical element. The optical element has a plurality of clusters, shaped along the x-, y- and z-axis to control the light. After the light is distributed, it encounters a second optical surface of the optical element, typically a fresnel surface. The light is controlled by the optical element. Optionally, a lens can be placed over each LED to control the light pattern of the LED. The lens has an entry face to direct the light to a total internal reflection surface on the side, which redirects the light to the exit face. The resulting signal is a uniform, efficient signal.

Abstract: Various optical techniques are described for obtaining a specified light output from an LED source. One technique uses a parabolic reflector surrounding an LED or LED array to create a collimated beam, and the light exit opening of the parabolic reflector is defined by a reflective disc with an opening of the desired size. Any generated light that is outside of the opening is reflected back into the parabolic reflector and re-reflected until the light exits the opening. For mixing different light colors from different LEDs or energized phosphors, a mixing tunnel is used. The mixing tunnel includes angled dichroic mirrors or angled polarizer mirrors that selectively reflect and pass selected colors or polarizations of light to a single output port of the mixing tunnel. Efficient and compact ways to energize phosphors are also described. Other optical techniques are also described.

Abstract: A light source of coaxially stacked volumetric light cells that can be used either in a lamp or a display. Each light cell is composed of high quantum yield nanocrystals in a silica aerogel matrix that is excited by a controlled ultraviolet light source. From these stacked cell assemblies visible light is emitted of a desired color or color temperature and brightness.

Abstract: The invention concerns an illumination apparatus for an optical observation device (10), in particular a stereomicroscope or a stereo surgical microscope. A multi-armed light guide with coupler (2) mixes colored light emitted by light-emitting diodes (1a–c) to yield white mixed light (15).

Abstract: A portable lighting lamp 10 comprises an emitting module equipped with at least one light-emitting diode 11 for emitting a light beam, a fixing and connecting element 12 of said diode, and an optical focussing device 15 able to be moved in front of the diode 11 to make the visualization angle of the light beam vary. The optical focussing device 15 is advantageously constituted by one or more Fresnel lenses 16 mounted on a swivelling support 17 or a rotary knob designed to occupy either an inactive position situated outside the light emission field of the diode or an active position wherein said light beam passes through the lens so as to obtain either broad lighting with a short range or narrow lighting with a long range.

Abstract: A backlight device for a liquid crystal includes a substrate, a light source including a first plurality of green light emitting diodes, a second plurality of blue light emitting diodes, and a third plurality of red light emitting diodes arranged along a first row direction on the substrate in an offset matrix-type configuration, wherein white light emitting diodes are disposed at both ends of the configuration of the green, blue, and red light emitting diodes.