摘要:
The invention relates to a light source comprising a light-emitting element, which emits light in a first spectral region, and comprising a luminophore, which comes from the group of alkaline-earth orthosilicates and which absorbs a portion of the light emitted by the light source and emits light in another spectral region. According to the invention, the luminophore is an alkaline-earth orthosilicate, which is activated with bivalent europium and whose composition consists of: (2-x-y)SrO x(Ba, Ca)O (1-a-b-c-d)SiO2 aP2O5 bAl2O3 cB2O3 dGeO2: y Eu2+ and/or (2-x-y)BaO x((Sr, Ca)O (1-a-b-c-d)SiO¿2? aP2O5 bAl2O3 cB2O3 dGeO2: y Eu?2+¿. The desired color (color temperature) can be easily adjusted by using a luminophore of the aforementioned type. The light source can contain an additional luminophore selected from the group of alkaline-earth aluminates, activated with bivalent europium and/or manganese, and/or can contain an additional red-emitting luminophore selected from the group Y(V, P, Si)O¿4?:Eu or can contain alkaline-earth magnesium disilicate.
摘要翻译:本发明涉及包含发光元件的光源,所述发光元件发射第一光谱区域中的光,并且包含发光体,所述发光体来自所述碱土原硅酸盐的组并且吸收由所述光发射的一部分光 来源并在另一个光谱区域发射光线。 根据本发明,发光材料是碱土原硅酸盐,其用二价铕活化并且其组成包括:(2-xy)SrO x(Ba,Ca)O(1-abcd)SiO 2 aP 2 O 5 bAl 2 O 3 cB 2 O 3 dGeO 2: y Eu2 +和/或(2-xy)BaO x((Sr,Ca)O(1-abcd)SiO 2·aP 2 O 5 bAl 2 O 3 cB 2 O 3 dGeO 2:y Eu 2+ + 通过使用上述类型的发光体进行调节,光源可以含有选自碱土铝酸盐,用二价铕和/或锰活化的另外的发光体,和/或可以含有选自以下的另外的红色发光发光体: 基团Y(V,P,Si)O4:Eu或可以含有碱土金属硅酸盐。
摘要:
The invention relates to a light source comprising a light-emitting element, which emits light in a first spectral region, and comprising a luminophore, which comes from the group of alkaline-earth orthosilicates and which absorbs a portion of the light emitted by the light source and emits light in another spectral region. According to the invention, the luminophore is an alkaline-earth orthosilicate, which is activated with bivalent europium and whose composition consists of: (2-x-y)SrO x(Ba, Ca)O (1-a-b-c-d)SiO2 aP2O5 bAl2O3 cB2O3 dGeO2: y Eu2+ and/or (2-x-y)BaO x((Sr, Ca)O (1-a-b-c-d)SiO¿2? aP2O5 bAl2O3 cB2O3 dGeO2: y Eu?2+¿. The desired color (color temperature) can be easily adjusted by using a luminophore of the aforementioned type. The light source can contain an additional luminophore selected from the group of alkaline-earth aluminates, activated with bivalent europium and/or manganese, and/or can contain an additional red-emitting luminophore selected from the group Y(V, P, Si)O¿4?:Eu or can contain alkaline-earth magnesium disilicate.
摘要翻译:光源包括在光谱的蓝色和/或UV区域中发射光的元件; 和由任选用铕激活的碱土金属原硅酸盐制成的发光体,并吸收由光源发射并在另一个光谱区域发射的光的一部分。 碱土原硅酸盐具有以下成分:(2-xy)SrO x(Ba u,Ca v)。(1-abcd)SiO 2 .aP 2 O 5b Al 2 O 3cB 2O 3dGeO 2:yE 2 + = 0-1.6; y = 0.005-0.5; x + y = 1.6; a,b,c,d = 0-0.5; u + v = 1)和/或组成:(2-xy)BaO.x (Sr u,Ca v)(1-abcd)SiO 2.aP 2 O 5bAl 2 O 3cB 2O 3dGeO 2:yEu 2 + +(其中x = 0-1.6; y = 0.005-0.5; a,b,c, d = 0-0.5; u + v = 1; xu为至少0.4)。 a,b,c和d中的至少一个大于0.01。 优选的特征:发光体中的至少一部分硅可被镓取代。 一个或多个LED芯片(1)布置在反射器(4)内的电路板(2)上,并且发光体分散在布置在反射器上方的光板(5)中。
摘要:
The light emitting device has a light emitting diode which is made of a nitride semiconductor and a phosphor which absorbs a part of lights emitted from the light emitting diode and emits different lights with wavelengths other than those of the absorbed lights. The phosphor is made of alkaline earth metal silicate fluorescent material activated with europium.
摘要:
The invention relates to a control circuit (200a, 200b) for supplying constant power based on a transformer method in which a triangular alternating current (ID) that periodically varies by a DC value flows through light-emitting diodes (D1,..., DN). According to said method, a circuit-related measure is used such that both the charging current and the discharging current (IL1) of an inductive reactance (XL1) which acts as a storage inductor (L1) and is serially connected to the light-emitting diodes (D1,..., DN) flow through the light-emitting diodes (D1, , DN) as diode current (ID) in order to filter network harmonics. Said method has the advantage of substantially reducing the total power loss (PV, ges) of the LED lighting module (100). In one embodiment of the invention, the ceramic printed board (102) of the inventive LED lighting module (100) is provided with a direct line current supply unit (104, 108) which is mounted in a transparent housing (106) in order to be protected from mechanical damage, said transparent housing (106) comprising a highly transparent polymer material (110) that is used as an optically active lens area.
摘要:
The method comprises the following steps: the printed circuit board is provided with an insulating layer, (with the exception of the contact surfaces); contact bumps or contact layers with a maximum height of 100 νm, consisting of a solder material with a good thermal conductivity, are either applied to one surface of the contact electrodes of the LED dice, or contact layers with a thickness of 1-50 νm are applied to the contact surfaces of the printed circuit board; the LED dice are pressed and soldered onto the contact surfaces of the printed circuit board, or in their immediate vicinity, using flip-chip technology, the contact surface of said dice facing downwards. Said method can be modified so that instead of the soldering process, metallic contact bumps or contact layers are used and the LED dice are pressed in exact register onto the free contact surfaces of the printed circuit board and are fixed using a thermocompression procedure. Said method can also be modified for LEDs comprising contacts on their front faces. The method permits the production of LED arrays with an intense luminosity, despite their reduced dimensions.
摘要:
The invention relates to an LED spotlight which comprises an arrangement with at least one LED (8) above which a color conversion substance (9) is disposed and a lens system. Said lens system is produced from a substantially transparent material and deviates incident light by total reflection from the LED arrangement in the direction of an exit surface (3). The base of the conical lens system (1) can have a polygonal shape. The outer wall (2) of the conical lens system (1) can be provided with planar facets (6) in at least some sections. The color conversion material (9) can be provided above the LED arrangement as a cuboid structure.
摘要:
The invention relates to a light-emitting diode arrangement comprising at least one light-emitting diode chip (1), a multi-layer plate (17) provided with a base (5) consisting of a material exhibiting good thermal conductivity and especially consisting of metal, and an electrically insulating and thermoconductive joining layer (2) between the emission surface of the light-emitting diode chip (1) and the plate (17).