1140results about "Luminescence" patented technology

A luminous lamp having an ultraviolet filtering and explosion-proof thin film is disclosed. An outside of a lamp is coated by a transparent layer which comprises phosphor powder. Energy generated by the lamp is absorbed by the phosphor powder while the lamp is shining. The phosphor powder would release energy to shot brilliance, so as to provide auxiliary lighting after turning off the lamp. Additionally, the phosphor powder can absorb harmful ultraviolet and other harmful radiations with shorter wavelengths to be one part of the thin film for filtering harmful radiations. The harmful ultraviolet can be transformed by the phosphor powder into visible light to red shift radiations with short wavelengths; hence the harmful radiations with shorter wavelengths can be eliminated. The illumination of visible light can be further increased. The transparent layer can catch broken fragments of the outside of the lamp to decrease accidents when the lamp is broken.

To provide a semiconductor light emitting device which is capable of accomplishing a broad color reproducibility for an entire image without losing brightness of the entire image.A light source provided on a backlight for a color image display device has a semiconductor light emitting device comprising a solid light emitting device to emit light in a blue or deep blue region or in an ultraviolet region and phosphors, in combination. The phosphors comprise a green emitting phosphor and a red emitting phosphor. The green emitting phosphor and the red emitting phosphor are ones, of which the rate of change of the emission peak intensity at 100° C. to the emission intensity at 25° C., when the wavelength of the excitation light is 400 nm or 455 nm, is at most 40%.

A photoluminescent device and a photoluminescent exit sign. The photoluminescent device includes a polymer matrix having a light-emitting exterior surface for emission of photoluminescent light therefrom. The photoluminescent device has a plurality of UV or visible-light excited phosphor particles included in the polymer matrix. The phosphor particles have a concentration greater in an exterior region of the polymer matrix proximate the light-emitting exterior surface than in an interior region of the polymer matrix. The exit sign includes at least two plates interlocked together with at least one typographical character disposed on the plates. The typographical character is formed from the polymer matrix containing the phosphor particles.

A lamp comprising a solid state light emitter, the lamp being an A lamp and providing a wall plug efficiency of at least 90 lumens per watt. Also, a lamp comprising a solid state light emitter and a power supply, the emitter being mounted on a heat dissipation element, the dissipation element being spaced from the power supply. Also, a lamp, comprising a solid state light emitter and a heat dissipation element that has a heat dissipation chamber, whereby an ambient medium can enter the chamber, pass through the chamber, and exit. Also, a lamp, comprising a light emissive housing at least one solid state lighting emitter and a first heat dissipation element. Also, a lamp comprising a heat sink comprising a heat dissipation chamber. Also, a lamp comprising first and second heat dissipation elements. Also, a lamp comprising means for creating flow of ambient fluid.

A light source apparatus includes: an excitation light source including a laser light source; a first wheel that is controlled to rotate, and includes, in a part of a surface thereof to be illuminated by excitation light emitted from the excitation light source, a phosphor layer to be excited by the excitation light; a dichroic mirror that guides fluorescence emitted from the phosphor layer of the first wheel and the excitation light to an illumination optical system; and a second wheel that is controlled to rotate, and includes a dichroic filter that transmits light having a desired wavelength component of each of the fluorescence and the excitation light output from the dichroic mirror.

The invention realizes a phosphor film that has a fluorescent characteristic excellent in resistance to humidity and provides, using the phosphor film, a liquid crystal display device that is excellent in resistance to humidity and has satisfactory calorimetric property and color mixture property. Phosphor particles that are excited by incident light and emit light having a wavelength different from the incident light are mixed in a binder. The binder mixed with the phosphor particles is sandwiched between a translucent film and a non-permeable layer as a phosphor layer to form a phosphor film. This phosphor film is provided at least in one place among a place between a light source and a light guide of a lighting device, a place on a light irradiation surface of the light guide, and a place between the light guide and a reflection plate. Moreover, the phosphor particles have a characteristic that a wavelength absorbed by a color filter of a display element is set as an excitation wavelength and a luminescent wavelength is in a region transmitted by the color filter. With this phosphor film, it is possible to realize a display device that has extremely high luminance efficiency and color reproducibility.

This invention concerns a fluorometer preferably combined with a thermal cycler useful in biochemical protocols such as polymerase chain reaction (PCR) and DNA melting curve analysis. The present flourometer features a low heat-generating light source such as a light emitting diode (LED), having a one-to-one correspondence to each of a plurality of sample containers, such as capped PCR tubes in a standard titer tray. The flourometer of the present invention further comprises an optical path between each LED and its correspondingly positioned container, and another optical path between each flourescing sample within the positioned container and an optical signal sensing means. The instrument can be computer controlled.

A system includes a radiation source capable of emitting first light and a fluorescent material capable of absorbing the first light and emitting second light having a different wavelength than the first light. The fluorescent material is a phosphor having the formula (Lu1-x-y-a-bYxGdy)3(Al1-zGaz)5O12:CeaPrb wherein 0<x<1, 0<y<1, 0<z<=0.1, 0<a<=0.2 and 0<b<=0.1. In some embodiments, the (Lu1-x-y-a-bYxGdy)3(Al1-zGaz)5O12:CeaPrb is combined with a second fluorescent material capable of emitting third light. The second fluorescent material may be a red-emitting phosphor, such that the combination of first, second, and third light emitted from the system appears white.

A side light type backlight includes a light source including a plurality of LEDs, and a light guide plate. One of the end surfaces of the light guide plate is a light incidence surface at which a plurality of R-LEDs, a plurality of G-LEDs and a plurality of B-LEDs are arranged. LEDs satisfy the relationship of: a distribution range of light emitted from G-LEDs <a distribution range of light emitted from R-LEDS, or a distribution range of light emitted from G-LEDs <a distribution range of light emitted from B-LEDs. Also, LEDs are electrically connected to each other.

A light source including an LED that emits excitation light, a layer a phosphor material positioned to receive the excitation light, the phosphor material emitting visible light when illuminated with the excitation light, and a first non-planar flexible multilayer reflector that reflects the excitation light and transmits visible light. The non-planar flexible multilayer reflector is positioned to reflect LED light onto the phosphor material.

A LED luminaire track lighting system includes an elongate track, having a number of longitudinal guideways, for attachment to a support surface, as well as a number of current conductors arranged within at least some of the guideways. The first of these conductors are power conductors and the second conductors are data conductors, the conductors being electrically isolated from each other. The lighting system further contains a first adapter for connection to a source of electrical power for the power conductors, and a second adapter for connection to a source of control data for application of data to the data conductors. There is at least one LED color-changing luminaire present in the system, and this luminaire contains a number of LEDs, each of which, when energized, generates a single color out of a discrete plurality of colors. A data converter converts data along the data lines to control the currents in the individual groups of color LEDs so that they create a desired composite color. Further, at least electrically, the LED color-changing luminaire is at least electrically connected to the power conductors and data conductors in the track.

The present invention provides a display device in which the adhesive for bonding the display panel and the substrate to each other is prevented from remaining as an uncured portion, and a method for production thereof. The present invention provides: a display device comprising a display panel, a substrate disposed on a display side, and an adhesive layer via which the display panel and the substrate are bonded to each other, wherein the adhesive layer contains a cationically polymerized resin; and the method for production thereof. The adhesive layer more preferably has a refractive index corresponding to that of a member adjacent to the adhesive layer.

This invention relates to chemiluminescent suction devices and methods for using the devices. The devices may be useful as medical, industrial, and consumer products. They may be disposable and may employ an integrated or attachable chemiluminescent source. In some variations, the device may include a supporting structure or body that is at least partially translucent or transparent for transmitting chemiluminescent illumination.

Disclosed teem are display systems comprising light-emitting, diodes (LEDs), suitably blue light LEDs, which demonstrate increased optical power output. In embodiments, the display systems include compositions comprising phosphors, including luminescent nanocrystals.

A system is disclosed for monitoring a property of an ingested or in-taken drug, food, drink or toxic substance, non-invasively or minimally invasively, which can also identify the subject person being monitored, if desired. The system comprises: a means of labeling the substance with a labeling media to have a useful signature indicative of, or bearing a relation to the property; a means to allow the signature to be read non-invasively or minimally invasively; and a means to identify, in any manner, who is being monitored.

An integrated light guide for use in an electronic device having a plurality of key buttons to allow a user to input signals in the device, the light guide having a plurality of domes used as touch areas of the key buttons and a plurality of light escapement areas disposed at the domes. When coupled to a light source, a portion of the light received by the light guide from the light source escapes from the light escapement areas to illuminate the key buttons. Preferably, each dome has one or more electrically conducting patches provided under the dome such that when a touch area is pushed by the user, these patches are caused to interact with an electronic circuit placed under the light guide for activating a key.

An electric lighting device created for use as a safe, long lasting, authentic looking alternative to a flame bearing candle. This electric ‘candle’ being made from real candle wax, or hollowed out candles with the wicks removed. The ‘candle’ can be scented or colored, and the glow is authentic and pleasing being viewed through real candle wax. Miniature lamps suspended in a clear or yellowish heat resistant medium provide the source lighting. The glow of the artificial flame is color and volume-of-output matched to that of a real flame and realism is added by simulated flame movement with the use of an adjustable oscillator circuit hidden inside the candle. This flameless ‘candle’ can be used safely unattended, and is realistic in that real candle wax, or real used candles, are used for the body of the device.

A light source module for generating light, including a semiconductor light-emitting element, nano-particles having a diameter smaller than half the wavelength of light generated by the light source module, a fluorescent substance for generating visible light in accordance with light generated by the semiconductor light-emitting element, and a binder formed stratiformly for covering a light-emitting surface of the semiconductor light-emitting element to hold the nano-particles and the fluorescent substance, wherein the refractive index of the nano-particles is higher than the refractive index of the binder.

A light emitting diode retrofit conversion kit adapted for use in a fluorescent light fixture comprises a housing adapted to be secured to a troffer; a power supply carried by the housing; and a plurality of light emitting diodes carried by the housing.

A hand-held power tool includes a housing with a tool fitting for receiving an insertion tool, and at least one illuminating element for illuminating the working area of the hand-held power tool; wherein the at least one illuminating element is located in the region of the tool fitting.

Active foodware comprises at least a plate unit that provides visual stimuli by having a power source and a visual sensory stimulating component to provide light emanating from the plate. Other devices can provide auditory and haptic stimuli. The plate unit can be a single component where the device and circuitry are all contained in the unit and protected from water or can be two components an upper translucent plate and an underplate comprising the devices and circuitry for directing light through the upper plate.

A quasioptical LED package structure for increasing color render index and brightness includes a substrate unit, a light-emitting unit, a frame unit and a package unit. The light-emitting unit has a first light-emitting module for generating a first color temperature and a second light-emitting module for generating a second color temperature. The frame unit has two annular resin frames surroundingly formed on the top surface of the substrate unit by coating. The two annular resin frames respectively surround the first light-emitting module and the second light-emitting module in order to form two resin position limiting spaces above the substrate unit. The package unit has a first translucent package resin body and a second translucent package resin body both disposed on the substrate unit and respective covering the first light-emitting module and the second light-emitting module.

A lighting structure is removably attached to the pole of a patio umbrella. The lighting structure has a battery housing, a hollow support having a first end attached to the battery housing, a light bulb removably attached to the second end of the hollow support, wiring extending through the hollow support and having a first end positioned in the battery housing and a second end coupled to the light bulb, and a collar for removably attaching the battery housing to the pole.