409 results about "Orange light" patented technology

A white color or neutral color LED having an n-type ZnSe single crystal substrate doped with I, Cl, Br, Al, Ga or In as SA-emission centers and an epitaxial film structure including a ZnSe, ZnCdSe or ZnSeTe active layer and a pn-junction. The active layer emits blue or bluegreen light. The SA-emission centers in the ZnSe substrate convert blue or bluegreen light to yellow or orange SA-emission. The blue or bluegreen light from the epitaxial film structure and the yellow or orange light from the ZnSe substrate synthesize white color light or neutral color light between red and blue.

A lighting device comprising a white light source, a filter which filters blue light from the white light, and a second light source which emits red light and/or reddish-orange light. In some embodiments, the white light source comprises a solid state light emitter. A method of lighting, comprising illuminating a white light source, illuminating a red and/or reddish-orange light source, the light sources being positioned and oriented such that the light mixes, and filtering blue light from the mixed light. A method of lighting, comprising illuminating a white light source, filtering blue light from the white light, and illuminating a red and/or reddish-orange light source. A light filter, comprising a first filter component which has a wall region and a window region, and a second filter component comprising two or more reflection regions. Also, methods of filtering.

An illumination light source includes four different types of LEDs, namely a blue light-emitting diode 11 emitting blue light, a blue-green light-emitting diode 12 emitting blue-green light, an orange light-emitting diode 13 emitting orange light and a red light-emitting diode 14 emitting red light. Thus, an illumination light source having high efficiency and high color rendering performance is provided.

In an organic electroluminescent element provided with a blue light-emitting layer and an orange light-emitting layer as a light-emitting layer between a hole injection electrode and an electron injection electrode, the blue light-emitting layer contains a host material, a light-emitting dopant and an assist dopant supplementing the carrier transfer of the host material. When the host material is an electron transfer material, an assist dopant has a smaller absolute value of highest occupied molecular orbital (HOMO) energy level than that of the host material and has a higher hole mobility than that of the host material.

The present invention aims at providing a chemically stabilized inorganic phosphor which emits orange light or red light at wavelengths longer than the conventional rare-earth activated sialon phosphor and which has a higher luminance.

The solving means resides in an inorganic phosphor design represented by a composition formula M_aA_bD_cE_dN_eO_fX_g and containing: an M element (M is one kind or two or more kinds of element(s) selected from Mn, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu); a divalent A element (A is one kind or two or more kinds of element(s) selected from Mg, Ca, Sr, and Ba); a trivalent E element (E is one kind or two or more kinds of element(s) selected from B, Al, Ga, and In); a tetravalent D element (D is one kind or two or more kinds of element(s) selected from Si, Ge, and Sn); nitrogen; oxygen (including an oxygen absent condition); and another X element (including an X absent condition); wherein the parameters a, b, c, d, e, f, and g included in the equation are adjusted to and set at particular regions to provide an inorganic phosphor which emits orange light at wavelengths of 570 nm or longer or red light at wavelengths of 600 nm or longer with excellent color rendering property.

The invention discloses an LED light source module with a high color rendering index and an LED lamp. The LED light source module comprises a first LED light source providing warm white light, a second LED light source providing blue light, a third LED light source providing green light and a fourth LED light source providing red light, wherein the first LED light source comprises a first blue light LED chip with the peak wavelength being 442-450 nm, the first blue light LED chip is coated with green light fluorescent powder with the peak wavelength being 525-540 nm and orange fluorescent powder with the peak wavelength being 580-600 nm, and the proportions of luminous powers of blue light, green light end orange light provided in the warm white light are 0.02-0.04, 0.35-0.39 and 0.59-0.61 respectively; the second LED light source comprises a second blue light LED chip with the peak wavelength being 442-450 nm; the third LED light source comprises a green light LED chip with the peak wavelength being 490-500 nm; the fourth LED light source comprises a red light LED chip with the peak wavelength being 627-635 nm. By the adoption of the LED light source module and the LED lamp, the light distribution scheme is easy to achieve, and the light distribution effect is good.

The invention discloses a multicolor luminous carbon nanodot as well as a preparation method and an application thereof, belonging to the field of nanomaterial science and solving the technical problems that the emitted light peak position of a carbon nanodot generates red shift and the strength is weakened with increase of wavelength of excited light and a preparation method of the carbon nanodot is high in cost, complex to operate, time-consuming and labor-consuming in the prior art. According to the preparation method, with a polycarboxylic or polyhydric organic compound or an amino acid as a carbon source and long-chained organic diamine as a surface passivation modifier, the multicolor luminous carbon nanodot is prepared by the steps of low-temperature pyrolysis, precipitation washing, dialysis separation and freeze drying. The preparation method of the multicolor luminous carbon nanodot is simple, low in cost and can be conveniently put into large-scale production; the prepared carbon nanodot is at a solid state, is convenient to store, has high fluorescence quantum efficiency and good biocompatibility, can respectively emit strong green light, orange light and red light under the excitation of blue light, green light and yellow light, and can be used as a bioluminescence probe and an optical imaging marker.

A white light apparatus with adjustable color temperature and a method of producing a white light thereof are disclosed. The white light apparatus includes a blue light-emitting diode, a phosphor powder and an orange light-emitting diode or a blue-green light-emitting diode. Furthermore, the method includes the following steps. Firstly, the blue light-emitting diode is provided for emitting a blue light. Secondly, the phosphor powder is prepared for emitting a phosphor light mixed with the blue light to produce the white light. Finally, the orange light-emitting diode or the blue-green light-emitting diode is controlled by a driving current, thereby to adjust the color temperature of the white light of the white light apparatus.

The present invention relates to nano imitation ecological rare earth light-converting agent. It is a light-converting agent formed by making stable complex formed from nitrate or hydrochloride of trivalent europium, ntirate or hydrochloride of doped lanthanum, samarium, gadolinium, yttrium and cerium, organic aromatic carboxylic acid and long-chain organic ligand and clay implement intercatation reaction. Said invention also provides the molecular formula of said light-converting agent. The light-converting farm film prepared by using said light-converting agent contains 100 portions of polyolefine and 0.005-5 portions of the above-mentioned light-converting agent. Said invention can convert the UV-light into raddish orange light, blue light and green light with strongest photosynthesis, and can raise infrared light of greenhouse so as to meet growth requirements of different crops.

The invention discloses a fluorescent carbon quantum dot. The fluorescent carbon quantum dot is prepared by a method comprising the following steps: putting 1g to 2g of citric acid and 2g to 4g of urea into a reaction kettle; adding 10mL to 15mL of dimethylformamide and mixing; sealing the reaction kettle and heating the mixture to 150 DEG C to 180 DEG C; after reacting for 4h to 6h, obtaining a brown solution; cooling to room temperature; adding 20mL to 30mL of a 50mg/mL NaOH solution and mixing and stirring for 1min; centrifuging and collecting sediment; then dissolving into water and centrifuging; repeating for two times and freezing and drying sediment. The fluorescent carbon quantum dot emits orange light under an ultraviolet light source; after the fluorescent carbon quantum dot solution is mixed with TNP (Trisnonylphenylphosphite), a quenching phenomenon of fluorescent light occurs and the TNP can be detected through a colorimetric method or a fluorescence method; meanwhile, the solution is observed under a fluorescent lamp and becomes blue from pink; a detection result can be recognized by naked eyes; the fluorescent carbon quantum dot has high sensitivity and strong specificity and can be used for the field of cell imaging.

An organic light emitting diode device is disclosed. The organic light emitting diode device includes a light emitting layer which includes at least two blue light emitting units and at least one orange light emitting unit. Such a device exhibits excellent color characteristic and high luminance and efficiency, as well as a longer life span due to the materials used. In particular, the white light represents color of high color purity after it passes through a color filter.

The invention discloses an environment-friendly synthetic method of orange nitrogen/sulfur codoped carbon quantum dots. A preparation method comprises the step of carrying out polycondensation and carburization on amino acid at hydrothermal conditions by taking two different amino acids as raw materials and using water as a solvent. The environment-friendly synthetic method has the advantages that the operation is easy, the raw materials are environmental friendly, low in cost and easily available, and a product is short in preparation cycle and good in repeatability; the orange nitrogen/sulfur codoped carbon quantum dots are uniform in size and can emit orange lights, and the blank that the existing quantum dots are emitted at the wavelength is made up; the product can be widely applied to various fields of biologic imaging, cell marking, anti-counterfeiting and the like.

This invention relates to a white electroluminescent polymeric material and preparation thereof. Based on the physical idea that white light emission can be achieved by regulating the relative luminous intensities of blue- and orange-light emitting units located in a single polymer molecule, the present invention provides three types (main chain type, pendant chain type, and terminal group type) of high efficiency and stable white electroluminescent polymeric material systems.

A red color filter layer is provided under an organic EL device. A green color filter layer, a blue color filter layer, and a region without a color filter layer are provided in this order under an organic EL device. Orange light from the organic EL device is transmitted through the red color filter layer, so that red color is obtained. White light from the organic EL device is transmitted through the green color filter layer and the blue color filter layer, so that green light and blue light are obtained. White light is obtained from the organic EL device. In this way, red light, green light, blue light, and white light are obtained.

The invention relates to the field of imitative ecological plant-growth supplementary lighting LED light sources, in particular to a plant-growth LED light source which comprises a substrate, an LED wafer and a transparent rubber body. The LED wafer and the transparent rubber body are arranged on the substrate, the transparent rubber body is covered on the LED wafer, and colorized phosphor is uniformly distributed in the transparent rubber body. The light source is formed by an LED emitting blue light and red light simultaneously or by a blue-violet light LED and a red-orange light LED, luminescence spectrum of the light source ranges from 380 nanometers to 500 nanometers in blue-violet light area and 580 nanometers to 700 nanometers in red-orange light area, and emission peak of the lights is adjustable. The spectrum fits absorption spectrum of the photosynthesis of plants quite well, so that when packaged LEDs are assembled to form illumination lamps for agriculture, not only plant yield of the plant can be obviously increased, but also growth cycle of the plant can be shortened, and plant quality can be improved. The imitative ecological plant-growth supplementary lighting LED light source is energy saving, environment-friendly, durable and long in service life, and has great application value and market prospect.

A vehicle signaling display device to be mounted on an automotive vehicle, so that signaling lights of the device are visible for drivers of following vehicles, includes orange or amber, red and green lights and includes a system specifically designed to count speed sensor pulses for measuring speed of any vehicle of any make and model on which the device is installed, for controlling the signaling lights in accordance with the speed of the vehicle and regardless of operation and position of accelerator pedal of the vehicle, in order to perform a set of standardized operations of the signaling lights for dynamically preventing traffic crashes. The device (a) turns on a distinct arrangement of a number of lights of the signaling lights for indicating different ranges of the speed of the vehicle so that a red light of the signaling lights remains lit without flashing regardless of braking as advanced stop sign indicating very low speed or stationary state of the vehicle, orange lights of the signaling lights remain lit indicating low speed of the vehicle and green lights remain lit indicating forward motion with constant speed; (b) flashes orange lights whenever the speed of the vehicle is reduced by a standardized value without braking; (c) flashes red lights whenever the speed of the vehicle is reduced by the standardized value by braking; (d) flashes green lights to indicate acceleration by the standardized value; so that as the rate of deceleration increases, the red or orange lights flash faster.

The invention provides bismuth-boron-silicate scintillating glass doped with Pr<3+>. The glass density is also greatly improved without affecting the illumination intensity of the glass. On one hand, Bi<3+> with a high atomic weight can endue glass with high density so as to ensure the glass can be used as a substrate material of a scintillating material; on the other hand, an emission wavelength of the substrate material is over 300nm, matching of an optical signal with a light emitting diode can be realized; moreover, because of the innate transparency of the glass, the bismuth-boron-silicate scintillating glass doped with the Pr<3+> can be easily prepared with a simple process, and can realize the characteristics of low cost, large volume and so on. Compared with the prior oxide glass, the density of the bismuth-boron-silicate scintillating glass doped with the Pr<3+> can be improved to 7.0g/cm<3> from about 4.0g/cm<3> of the prior density, and the bismuth-boron-silicate scintillating glass doped with the Pr<3+> can emit stronger 488nm blue light, 530nm green light, 610nm orange light and 647nm red light. Therefore, the bismuth-boron-silicate scintillating glass doped with the Pr<3+> is a novel scintillating material.

A method and structure for manufacturing long-wavelength visible light-emitting diode (LED) using the prestrained growth effect comprises the following steps: Growing a strained low-indium-content InGaN layer on the N-type GaN layer, and then growing a high-indium-content InGaN/GaN single- or multiple-quantum-well light-emitting structure on the low-indium-content InGaN layer to enhance the indium content of the high-indium quantum wells and hence to elongate the emission wavelength of the LED. The method of the invention can elongate emission wavelength of the LED by more than 50 nm (nanometer) such that an originally designated green LED can emit red light or orange light without influencing other electrical properties.

The invention provides an orange light emitting carbon nano dot, which comprises a nitrogen-enriched carbon based core and a cation passivation layer that wraps the surface of the nitrogen-enriched carbon based core. The provided orange light emitting carbon nano dot has a specific core-shell structure, which improves the light emitting efficiency of the orange light emitting carbon nano dot in the wave band of orange light. The provided orange light emitting carbon nano dot can be used to prepare fluorescent ink, fluorescence powder, and light emitting diode (LED) giving off white light. The fluorescent ink and fluorescence powder prepared from the orange light emitting carbon nano dot both have high fluorescence radiation quantum efficiency. The fluorescence powder can be used to prepare LED giving off white light and the LED can be applied to illumination equipment.

The invention relates to a multi-functional polyethylene farm film, which is characterized in that the farm file consists of low density polyethylene, metallocene linear polyethylene, red and orange light conversion agent, blue light conversion agent, anti-aging agent, and dripping agent; and the weight proportion follows that: 100 proportion of low density polyethylene being used as base material, 20 proportion of metallocene linear polyethylene, 0.05-1.1 proportion of red and orange light conversion agent, 0.05-1.1 proportion of blue light conversion agent, 0.6-1.6 proportion of antioxidant 1076, 0.5-1.4 glycerol single acid ester, and 0.3-0.8 proportion of UV-531. The multi-functional polyethylene farm film of the invention has the advantages that the application of the film can lead crop yielding to increase by 20-25 percent, can lead the effective life of the farm film to be up to 4-5 years, can ensure no-dripping valid period to be prolonged for 5-6 months, and can increase tensile and puncturing intensity by 15-20 percent, and meanwhile, the effect of high transparency and low ambiguity is similar to that of an EVA film.

The invention discloses a difunctional light conversion agent, which has a general expression of the formula (I): Ca1-x-yBaxSryF2:Eu, TM; in the formula (I), x is not less than 0 and not greater than 1, y is not less than 0 and not greater than 1, TM is one or more of Sm, Cu, Pr, Tb, Ce, La, Dy, Mn and Ag. The difunctional light conversion agent of the invention is prepared by adopting an alkaline earth fluoride as a substrate, Eu as an activator and a metal ion as a sensitizer, which has good stability, high luminous intensity and adjustable blue/blood orange light intensity, and can convert the 300 nm-380 nm ultraviolet light and the 520 nm-560 nm green light in the sunlight into the 400 nm-500 nm strong blue light and the 575 nm-630 nm red orange light. The invention widens the ultraviolet light absorption range of the light conversion agent, enhances the luminous intensity of blue light and is applicable to industrial popularization.