摘要:
A phosphor having an excitation band relative to lights in the wide range of wavelengths from ultraviolet to visible light, and having an emission spectrum in the red range and so on, with a wide half value width, and an LED and a light source using the phosphor and emitting white and other color lights with good color rendering properties are provided. Powdered raw materials of Ca3N2 (2N), CaO (2N), AlN (3N), Si3N4 (3N), and Eu2O3 (3N) are prepared, and the respective raw materials are mixed to have a mole ratio of the respective elements of Ca:Al:Si:Eu=0.985:1:1:0.015. The mixed raw materials are fired at 1000° C. or higher in an inert atmosphere for three hours, and thereafter pulverized to obtain a phosphor having a composition of CaAlSiN2.83O0.25:Eu, which is one example of the phosphor satisfying the above described object. Furthermore, by combining the phosphor with an appropriate LED or a light source emitting from ultraviolet light to visible light, the LED and the light source emitting white and other color lights with good color rendering properties can be obtained.
摘要:
A radio transmitter for modulating a carrier wave in a predetermined frequency with given information to transmit the modulation signal through an antenna having a predetermined resonance frequency f1 has a frequency changing section that changes the frequency of the carrier wave. The frequency changing section changes the frequency of the carrier wave to one of the resonance frequency f1 and a frequency f1×1/n, (wherein n is a given integer of at least 2, to change transmission output power.
摘要:
To provide a phosphor having an emission spectrum with a broad peak in a range from yellow color to red color (580 nm to 680 nm) and an excellent excitation band on the longer wavelength side from near ultraviolet/ultraviolet of excitation light to visible light (250 nm to 550 nm), and having an improved emission intensity. The phosphor is provided, which is given by a general composition formula expressed by MmAaBbOoNn:Z, (wherein element M is more than one kind of element having bivalent valency, element A is more than one kind of element having tervalent valency selected from the group consisting of Al, Ga, In, Tl, Y, Sc, P, As, Sb, and Bi, element B is more than one kind of element having tetravalent valency, O is oxygen, N is nitrogen, and element Z is more than one kind of element selected from rare earth elements or transitional metal elements, satisfying m>0, a>0, b>0 o≧0, and n=2/3m+a+4/3b−2/3o), and further containing boron and/or fluorine.
摘要:
To provide a phosphor having an emission characteristic such that a peak wavelength of light emission is in a range from 580 to 680 nm, and having a high emission intensity, and having a flat excitation band with high efficiency for excitation light in a broad wavelength range from ultraviolet to visible light (wavelength range from 250 nm to 550 nm). For example, Ca3N2(2N), AlN(3N), Si3N4(3N), Eu2O3(3N) are prepared, and after weighing and mixing a predetermined amount of each raw material, raw materials are fired at 1500° C. for 6 hours, thus obtaining the phosphor including a product phase expressed by a composition formula CaAlSiN3:Eu and having an X-ray diffraction pattern satisfying a predetermined pattern.
摘要:
A phosphor including a main production phase of a phosphor expressed by a composition formula of MmAaBbOoNn:Zz (where an element M is one or more bivalent elements, an element A is one or more trivalent elements, an element B is one or more tetravalent elements, O is oxygen, N is nitrogen, an element Z is an activator, n=2/3m+a+4/3b−2/3o, m/(a+b)≧1/2, (o+n)/(a+b)>4/3, wherein m=a=b=1 and o and n is not 0). A phosphor including 24 wt % to 30 wt % of Ca (calcium), 17 wt % to 21 wt % of Al (aluminum), 18 wt % to 22 wt % of Si (silicon), 1 wt % to 15 wt % of oxygen, 15 wt % to 33 wt % of nitrogen and 0.01 wt % to 10 wt % of Eu (europium), wherein an emission maximum in an emission spectrum is in a range of 600 nm to 660 nm; and wherein color chromaticity x of light emission is in a range of 0.5 to 0.7, and color chromaticity y of the light emission is in a range of 0.3 to 0.5.
摘要:
A transmitter transmits a wireless signal such as a request signal for a smart entry system by modulating a rectangular carrier wave with a base band signal from an antenna. A control unit is adapted to change the duty ratio of the carrier wave so as to change the transmission output of the wireless signal and thus to change its reception range. The control unit may also serve to change the transmission output of the wireless signal by varying the driving voltage that is applied to the antenna.
摘要:
To provide a phosphor having an emission characteristic such that a peak wavelength of light emission is in a range from 580 to 680 nm, and having a high emission intensity, and having a flat excitation band with high efficiency for excitation light in a broad wavelength range from ultraviolet to visible light (wavelength range from 250 nm to 550 nm). For example, Ca3N2(2N), AlN(3N), Si3N4(3N), Eu2O3(3N) are prepared, and after weighing and mixing a predetermined amount of each raw material, raw materials are fired at 1500° C. for 6 hours, thus obtaining the phosphor including a product phase expressed by a composition formula CaAlSiN3:Eu and having an X-ray diffraction pattern satisfying a predetermined pattern.
摘要翻译:为了提供具有发光特性的荧光体,使得发光的峰值波长在580〜680nm的范围内,并且具有高的发光强度,并且对于宽波长范围的激发光具有高效率的平坦激发带 从紫外到可见光(波长范围从250nm到550nm)。 例如,Ca 3 N 2(2N),AlN(3N),Si 3 N 4(3N) ),Eu 2 O 3(3N),在称量并混合预定量的每种原料之后,将原料在1500℃下烧制6 小时,从而获得包含由组成式CaAlSiN 3·Eu表示的产物相的荧光体,并具有满足预定图案的X射线衍射图案。
摘要:
A phosphor, which has less reduction in emission efficiency and is capable of keeping high luminance even when density of an electron beam for exciting the phosphor increases, is provided. As raw materials, Ca3N2 (2N), AlN (3N), Si3N4 (3N), and Eu2O3 (3N) are prepared, and each of the raw materials is weighed so that a mole ratio of each element is, for example, (Ca+Eu):Al:Si=1:1:1, and mixed, then the mixture is held and fired at 1500° C. under the inert atmosphere for three hours, and thereafter ground to produce a phosphor having a composition formula of Ca0.985SiAlN3:Eu0.015
摘要翻译:提供了即使在用于激发荧光体的电子束的密度增加的情况下,发光效率降低也能够保持高亮度的荧光体。 作为原料,Ca 3 N 2(2N),AlN(3N),Si 3 N 4(( 3N)和Eu 2 O 3(3N),并且将每种原料称重,使得各元素的摩尔比例如为( Ca + Eu):Al:Si = 1:1:1,混合后,将该混合物在惰性气氛下在1500℃下保持烧成3小时,然后研磨,得到组成式为 Ca 0.985 SiAlN 3:Eu 0.015 u>
摘要:
A phosphor having an excitation band relative to lights in the wide range of wavelengths from ultraviolet to visible light, and having an emission spectrum in the red range and so on, with a wide half value width, and an LED and a light source using the phosphor and emitting white and other color lights with good color rendering properties are provided. Powdered raw materials of Ca3N2 (2N), CaO (2N), AlN (3N), Si3N4 (3N), and Eu2O3 (3N) are prepared, and the respective raw materials are mixed to have a mole ratio of the respective elements of Ca:Al:Si:Eu=0.985:1:1:0.015. The mixed raw materials are fired at 1000° C. or higher in an inert atmosphere for three hours, and thereafter pulverized to obtain a phosphor having a composition of CaAlSiN2.83O0.25:Eu, which is one example of the phosphor satisfying the above described object. Furthermore, by combining the phosphor with an appropriate LED or a light source emitting from ultraviolet light to visible light, the LED and the light source emitting white and other color lights with good color rendering properties can be obtained.
摘要翻译:具有相对于从紫外线到可见光的宽波长范围内的光的激发带的荧光体,具有宽半值宽度的红色范围等的发光光谱,以及使用该光源的LED和光源 提供了具有良好显色性能的荧光粉和发出白色等彩色灯。 Ca 3 N 2(2N),CaO(2N),AlN(3N),Si 3 N 4的粉末原料 (3N)和Eu 2 O 3(3N),并将各原料混合以使各原料的摩尔比为 Ca:Al:Si:Eu = 0.985:1:1:0.015。 将混合的原料在惰性气氛中在1000℃以上煅烧3小时,然后粉碎,得到组成为CaAlSiN 2.83 O 0.25的磷光体, :Eu是满足上述目的的荧光体的一个例子。 此外,通过将荧光体与适当的LED或从紫外光发射到可见光的光源组合,可以获得发光白色和其它具有良好显色特性的彩色光的光源。
摘要:
A decorative member composing a casing includes: a resin layer (2) having a front surface (2b) and a back surface (2a); and a reflective layer (3) formed on the back surface (2a) of the resin layer (2). The back surface (2a) of the resin layer (2) includes a receding surface (21) formed therein. The receding surface recedes gradually toward the front surface (2b) to change a thickness of the resin layer (2). The receding surface (21) is a concave surface forming a depression that opens while broadening. The back surface (2a) of the resin layer (2) has a reference surface (22) around the receding surface (21), and a portion of the reference surface (22) facing an internal space of the casing is a roughened area (4).