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31 results about "Candela" patented technology
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The candela (/kænˈdɛlə/ or /kænˈdiːlə/; symbol: cd) is the base unit of luminous intensity in the International System of Units (SI); that is, luminous power per unit solid angle emitted by a point light source in a particular direction. Luminous intensity is analogous to radiant intensity, but instead of simply adding up the contributions of every wavelength of light in the source's spectrum, the contribution of each wavelength is weighted by the standard luminosity function (a model of the sensitivity of the human eye to different wavelengths). A common wax candle emits light with a luminous intensity of roughly one candela. If emission in some directions is blocked by an opaque barrier, the emission would still be approximately one candela in the directions that are not obscured.
LED module and packaging method thereof
ActiveUS20100157595A1Semiconductor/solid-state device testing/measurementLighting support devicesOn boardEffect light
A light-emitting diode (LED) module and an LED packaging method. As the LED module is packaged under the consideration of candela distribution, each of the lead frames of the LED chips packaged in the LED module is bended for tilting the LED chips by different angles to exhibit various lighting effects. Meanwhile, in the LED packaging method, a plurality of LED chips can be loaded on board rapidly and aligned by one operation to result in less deviation in the candela distribution curve.
Owner:IND TECH RES INST
Retroreflective article
Owner:3M INNOVATIVE PROPERTIES CO
Reflective printing on flame resistant fabrics
InactiveUS20060040575A1Protective equipmentSynthetic resin layered productsTextile printerEngineering
A retroreflective garment constructed of flame resistant fabric. The garment is light-weight and can be single or double layered. Garments that can be constructed of flame resistant fabric with retroreflective elements applied thereon include garments such as, for example, shirts, pants, coveralls, jumpsuits, jackets, gloves, hats, etc. The flame resistant fabric has a coefficient of retroreflection of about 10 to about 500 candelas per lux per square meter. In addition, the retroreflective elements cover at least about 5 percent of the outer surface of the flame resistant fabric.
Owner:SOUTHERN MILLS
Universal LED testing device
ActiveUS7964839B1Test accurateWide dynamic rangePhotometry using reference valueRadiation pyrometryOvervoltageFiber
Apparatus for optically testing LEDs or other light-emitting components in a wide variety of test environments and to the degree necessary pertinent to the type(s) of faults encountered. In one embodiment, the present invention includes one or more fiber optic probes coupled to a multi-mode sensor unit, incorporating a photo-sensor coupled to a processor which may be programmed to provide a variety of test modes including simple on / off testing, color determination, color matching, wavelength and relative intensity among others. An extremely high sensitivity test mode is also provided for testing LEDs which emit very low intensity light in the micro-candela range in products such as automobile / aircraft cockpit control panel lighted push-buttons for night-time viewing. The multi-mode sensor unit operates over a wide dynamic range and is capable of accurately testing LEDs that may be very dim to very bright without adjustment. In another embodiment, a voltage protection circuit is provided which enables the multi-mode sensor unit to safely operate from a supply voltage in the range of approximately 5 volts DC to approximately 40 volts DC while protecting the multi-mode sensor unit from a potentially damaging overvoltage condition. The voltage protection circuit also protects the multi-mode sensor unit against potential damage caused by reverse polarity voltage spikes, or accidental steady-state reverse polarity voltages.
Owner:OPTOMISTIC PRODS
Variable candela strobe
A selectable candela strobe alarm unit includes an energy storage circuit to reliably discharge a gas filled output device. The circuit includes a primary energy storage capacitor and a secondary energy storage capacitor. The capacitors can be configured in series or in parallel to produce a selected candela output from the gas filled output device.
Owner:HONEYWELL INT INC
Vehicle exterior mirror system
InactiveUS20150103543A1Conveniently combinedEasy to installLighting support devicesOptical signallingAmbient lightingEngineering
An exterior mirror system for a vehicle includes an exterior mirror assembly having a folding portion and a non-folding portion configured for mounting at a side of a vehicle. A reflective element is disposed at the folding portion. The reflective element is mounted to a backing plate that is supported by an electrical actuator operable to move the reflective element. The exterior mirror assembly includes an indicator having at least one light emitting diode that emits an intensity of light when electrically operated. During low ambient lighting conditions at night, the intensity of light emitted by the at least one light emitting diode of the indicator is reduced under photosensor control to a nighttime intensity level. The nighttime intensity level is greater than about 0.3 candela and is less than about 200 candelas. The indicator may include a module and the module may be substantially water impervious.
Owner:MAGNA MIRRORS OF AMERICA INC
LED module and packaging method thereof
A light-emitting diode (LED) module and an LED packaging method. As the LED module is packaged under the consideration of candela distribution, each of the lead frames of the LED chips packaged in the LED module is bended for tilting the LED chips by different angles to exhibit various lighting effects. Meanwhile, in the LED packaging method, a plurality of LED chips can be loaded on board rapidly and aligned by one operation to result in less deviation in the candela distribution curve.
Owner:IND TECH RES INST
Stroboscopic method for plant lighting device
The invention relates to a stroboscopic method for a plant lighting device. The method comprises the following steps: establishing connection between a lighting assembly network of a driving circuit and a group of input terminals used for receiving constant electricity in order to receive periodic pulse voltage, adjusting inputted pulse voltage by the driving circuit and dividing one pulse periodinto at least two phases, wherein at least one phase is a voltage-changing phase of voltage value from changes in set value to zero-volt voltage, and the other phase is a no-voltage phase; respondingto voltage in the voltage-changing phase and / or adjusting lighting duration, lighting intensity, light spectrums and / or change rules of lighting curves along with current changes by a lighting assembly in order to emit controllable light; responding to the no-voltage state in the no-voltage phase by the lighting assembly in order to generate controllable light with lighting intensity / luminance close to or equal to zero candela; and selecting corresponding lighting control schemes according to plant position parameters, growth phase features and / growth element features such that periodic lightchanges of the lighting assembly match plant growth demands.
Owner:ZHONGKE RARE EARTH (CHANGCHUN) CO LTD
Vehicle exterior mirror system
InactiveUS9586526B2Conveniently combinedEasy to installMechanical apparatusOptical signallingAmbient lightingEngineering
An exterior mirror system for a vehicle includes an exterior mirror assembly having a folding portion and a non-folding portion configured for mounting at a side of a vehicle. A reflective element is disposed at the folding portion. The reflective element is mounted to a backing plate that is supported by an electrical actuator operable to move the reflective element. The exterior mirror assembly includes an indicator having at least one light emitting diode that emits an intensity of light when electrically operated. During low ambient lighting conditions at night, the intensity of light emitted by the at least one light emitting diode of the indicator is reduced under photosensor control to a nighttime intensity level. The nighttime intensity level is greater than about 0.3 candela and is less than about 200 candelas. The indicator may include a module and the module may be substantially water impervious.
Owner:MAGNA MIRRORS OF AMERICA INC
Method and system for preparing high vacuum field modulation organic small molecular orientation nano film
The invention discloses a method for preparing a high vacuum field modulation organic micromolecule oriented nano-film and a system thereof. The nano-film is applicable to all organic semiconductor devices. The method comprises the steps: an evaporation boat (3) filled with organic micromolecule materials is electrified with direct current, and the evaporation rate of the organic micromolecule materials is controlled within the range of 0.1nm / s-0.3nm / s; a beam of white light with the light intensity of 100-1000 candela is emitted into a vacuum cavity in an incident way, a beam of linearly polarized light having the light vector direction being parallel to evaporation particle flow is obtained through a polaroid sheet (6) arranged in front of a glass window (7), and the orientation of the single organic micromolecule is modulated by the polarized light; the organic micromolecule nano-film which is distributed in an oriented way is formed. The system is provided with the glass window which is sealed with the cavity and has the diameter of 10cm in the middle of one side of a high vacuum evaporation cavity (1); the polaroid sheet having the adjustable direction is fixed closely to the glass window, and a white light source (5) with adjustable light intensity is placed in front of the polaroid sheet.
Owner:BEIJING JIAOTONG UNIV
Lighting device for producing a supplemental beam
A vehicle lighting system that projects a primary beam and that comprises a supplemental or auxiliary beam that augments the primary beam that does not exceed any regulatory maximum intensity values. In one embodiment, the lighting system utilizes a multi-lobed lens adapted to distribute light to predetermined areas of the primary beam. A combined beam is created having no portion that exceeds the regulatory maximum intensity. In one illustrative embodiment, the primary beam is a high beam and the combined beam is an augmented primary beam that does not exceed the high beam regulatory limit of 75,000 candelas.
Owner:VALEO NORTH AMERICA
Blue luminophore for plasma fluorescent screen and its preparation method
InactiveCN1477177AImprove luminous brightnessSolid cathode detailsCold-cathode tubesFluorescenceFlat panel display
The present invention belongs to an innovation of flat panel display technology, and relates to a preparation method of blue fluorescence body for plasma screen. On the basis of conventional BaMgAl10O17:Eu+2 the scandium ion and gallium ion (Sc+3+Ga+3) are doped, and its chemical composition formula is Ba1-xEuxMgAl10-y-zScyGa2 O17, where X=0.01-0.2, Y=0.005-0.3 and Z=0.001-0.25. Under the discharge wavelength lambda-147 nm vacuum UV light excitation the light-emitting luminance of said invented fluorescence body is raised by 10-12%, and can be up to 400 candela / sq.m.
Owner:孙德春
Communication method and device of stroboscopic information
ActiveCN108092716AAvoid crackingImprove securityKey distribution for secure communicationPublic key for secure communicationLight emissionComputer science
The invention relates to a communication device of stroboscopic information. The communication device at least comprises an optical signal transmitting-receiving unit, an optical signal processing unit and an optical communication network; the first optical signal processing unit divides a light emission period into at least two light emission stages of light change according to at least two feature curves, wherein the feature curve of at least one light emission stage changes via a mode of being level off to zero candela; the first optical signal transmitting-receiving unit transmits an optical signal which carries preset information directly or through the optical communication network based on the stagewise curves of the light emission period sent by the optical signal processing unit;and the second optical signal processing unit performs safety verification based on the feature curve of the first light emission stage in the light emission period, which is received by the second optical signal transmitting-receiving unit, and obtains transmission information via a preset information conversion mode based on the feature curve of the second light emission stage when the safety verification passes. Encryption is carried out through optical parameters in multiple dimensions at different stages of the light emission period, and the degree of safety is relatively high.
Owner:ZHONGKE RARE EARTH (CHANGCHUN) CO LTD
Flame tube for emergent warning motor vehicle and its formulation
InactiveCN1499452AImprove performanceStrong warningSmoke/fire/colored-gas signallingExplosivesStrontium carbonateEngineering
The flame tube is composed of burning stick, base and outer cover tube. One end of the burning stick is fixed on flat end of the base, and the outer cover tube put outside the burning stick is fitted to the base. Flammable kindling is installed on other end of the burning stick. Friction surface making the flammable kindling on fire is put the position on the outer cover tube for easy to use. Formula of powder is composed of granular ammonium chlorate, potassium chlorate, strontium nitrate and strontium carbonate. Advantages of the invention are that good performances: burning time more than 5 minutes, light intensity 160 candela up, period of validity 4 years; easy of use, high safety and high caution effect; applicable to other special uses besides traffic safety.
Owner:韩疏
Led rescue light
InactiveUS20100060462A1Conserve battery lifeVisible signalling systemsAlarmsAngle of viewElectric power
Owner:REVERE SUPPLY
Method and apparatus for increasing color gamut of a three color primary additive display device
InactiveUS20060158668A1Easy to useLarge color gamutDigitally marking record carriersDigital computer detailsGamutComputer graphics (images)
A method is provided for increasing color gamut of a three color primary additive display device, including the steps of providing an optical wavelength selector in the three color primary additive display device; and decreasing size of a projected image on a viewing screen while maintaining luminance levels having a white value of 48 candelas per square-meter (cd / m2)
Owner:EASTMAN KODAK CO
Variable candela strobe with constant trigger voltage
A variable candela strobe unit couples a substantially constant trigger voltage to a trigger electrode of a gas discharge tube irrespective of the voltage provided across the tube which is specified by a selected candela output value. The trigger voltage is great enough at low candela output settings to provide reliable triggering. It is not high enough even at the highest output settings to cause arcing of the associated step-up transformer.
Owner:HONEYWELL INT INC
Lighting device for producing a supplemental beam
Owner:VALEO NORTH AMERICA
Method and system for preparing high vacuum field modulation for organic small molecular orientation nano film
Owner:BEIJING JIAOTONG UNIV
Control and signaling device or signaling device with luminous element
A control and signaling unit or a signaling unit having a light-emitting element, made up of a front element and a mounting adapter for locking the functional elements into place. This is achieved in that only one light-emitting diode having a diode crown and connecting wires are integrated in the functional element, the diode crown being embedded and retained in a receptacle, the light-emitting diode having an angle of radiation of 30-45°. The light-emitting diode has a luminosity of at least 0.5 candela, and an electronic circuit is arranged on circuit conductors, secured to the inner housing wall of a housing half and applied using a foil heat-embossing process.
Owner:KLOCKNER-MOELLER GMBH
Side indicating lamp for high-speed trains
The invention relates to a side indicating lamp for high-speed trains, which comprises a lamp shade, wherein the inside of the lamp shade is provided with 56 light-emitting diodes, the lighting angle of each light-emitting diode is 15 degrees, and the luminous intensity of each light-emitting diode is 2 candelas; and the total luminous intensity of the light-emitting diodes is 112 candelas. The side indicating lamp provided by the invention is respectively arranged outside the two sides of a carriage; and when the door of the carriage is not closed completely, the side indicating lamp is always on so as to indicate a train driver not to drive, thereby avoiding the occurrence of accidents when the train is started and is in a high acceleration.
Owner:常州今创电工有限公司
Non-constant current electric driving LED light-emitting device for plant lighting
ActiveCN108200682ASpeed up the strobePromote growthElectrical apparatusElectroluminescent light sourcesLuminous intensityEngineering
The invention relates to a non-constant current electric driving LED light-emitting device for plant lighting. The non-constant current electric driving LED light-emitting device at least comprises anoptical engine module and at least one group of LED chip network, wherein the at least one group of LED chip network is provided with a lighting driving circuit, the optical engine module is used forpartitioning a pulse current within a period into at least two controlled light-emitting stages and adjusting a light-emitting parameter related with time of each light-emitting stage according to change of an absorption parameter of plant leaves on light rays so as to form a group of pulse period light-emitting parameters related with the time, the LED chip network is used for generating controlled light of which the brightness can be changed within a pulse period in response to the pulse current of the optical engine module, and the light-emitting intensity of at least one light-emitting stage changes approximately to a zero-candela light-emitting curve. Various light-emitting curves are formed by dividing the pulse period into three light-emitting stages, the stroboscopic frequency ofthe LED light-emitting device is accelerated, so that plant can rapidly perform photosynthesis under stroboscopic stimulation, and the growth and mature time is shortened.
Owner:ZHONGKE RARE EARTH (CHANGCHUN) CO LTD
A non-constant current driven LED lighting device for plant lighting
ActiveCN108200682BSpeed up the strobePromote growthElectrical apparatusElectroluminescent light sourcesLuminous intensityEngineering
Owner:ZHONGKE RARE EARTH (CHANGCHUN) CO LTD
Variable candela strobe with constant trigger voltage
A variable candela strobe unit couples a substantially constant trigger voltage to a trigger electrode of a gas discharge tube irrespective of the voltage provided across the tube which is specified by a selected candela output value. The trigger voltage is great enough at low candela output settings to provide reliable triggering. It is not high enough even at the highest output settings to cause arcing of the associated step-up transformer.
Owner:HONEYWELL INT INC
Early-warning system based on stroboscopic information
ActiveCN107942832AWon't breakFast transmissionProgramme controlComputer controlEarly warning systemComputer module
The invention relates to an early-warning system based on stroboscopic information. The system comprises a sensing unit, an optical transmit-receive unit and a control unit. The sensing unit comprisesan optical modulation module and sensors. The optical modulation module is used for modulating an electrical signal carrying monitoring information sent by the sensor into an optical signal comprising at least two light-emitting phases in a light-emitting period, wherein at least one monitoring information is set in a manner of modulating luminescence time length, characteristic curve and / or spectral change rules of light in at least one light-emitting phase, and at least one monitoring information, light intensity / brightness of which is approaching to zero candela change, is set in a mannerof modulating luminescence time length, characteristic curve and / or spectral change rules of light in at least one light-emitting phase; and when at least one monitoring information in the optical signal received by the at least one optical transmit-receive unit is in an early-warning state, the control unit sends an early-warning instruction to the at least one optical transmit-receive unit andcontrols the at least one optical transmit-receive unit to project a guide light pattern corresponding to the safety level to indicate a safe route.
Owner:ZHONGKE RARE EARTH (CHANGCHUN) CO LTD
Organic small molecule hole transport material, preparation method and application thereof
ActiveCN112694433AEasy to prepareEasy to purifyOrganic chemistrySolid-state devicesElectron holeHole transport layer
The invention belongs to the technical field of organic photoelectric materials, and discloses an organic small molecule hole transport material, a preparation method and application thereof. The structural formula of the small molecule hole transport material is shown as a formula (I). The invention also discloses a preparation method of the small molecule hole transport material, and the preparation method is simple and can be used for large-scale production. The small molecule hole transport material is large in steric hindrance, excellent in solubility and good in film forming quality, hole injection and transport are facilitated, and the turn-on voltage of a device is reduced; moreover, the maximum luminous efficiency of an OLED device taking the small molecule material as a hole transport layer can reach 11.0 candela / ampere, and excellent electroluminescent performance is shown.
Owner:CHINA PETROLEUM & CHEM CORP
Multiple-edge big grain size dispersed fluorescent powder and white light diode using same
InactiveCN1807548BIntense yellow-orange yellow long-wave lightSolid-state devicesSemiconductor/solid-state device manufacturingMultiple edgesLutetium
This invention relates to semi-conductor and lighting technology, specificly about semiconductor white light light-emitting diode, which can be used to constitute lighting system and used in manufacture, life and ornament. The recommendatory ight-emitting diode is heterogeneous knot based mainly by gallium nitride and indium nitride, and it is equipped with gadolinium-yttrium-lutetium group. The optical spectrum converter current equation of ceriumcatalytic scattering luminescence powder, which has multiple edges and big partcle size, is: Gd3-x-y-zYxLuyCezAlpOq, and the range of chemical indexes change as follows: 1. 0<x<2. 6, 0. 0001<=y<=0. 5, 0. 0001<=z<=0. 5, 4. 7<=z<=5. 3, q=4. 5+1. 5*p. The luminescence powder, which is painted on the surface and end face of the heterogeneous knot, again radiates short-wave blue light excited by the heterogeneous knot, accordingly issue wide band yellow-orange light, which composes with the blue light and forms homogeneous anamorphic white light.The big-particle luminescence powder has no light scattering totally and high quantum outputing value, so very high light intensity is grantuated, which is over 100 candelas, and its radiation angle is small (2theta=6degree).
Owner:罗维鸿
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