摘要:
Phosphor compositions having the formulas (Tb1-x-y-z-wYxGdyLuzCew)3MrAIs-rO12+δ, where M is selected from Sc, In, Ga, Zn, or Mg, and where 0≤w
摘要翻译:具有以下通式的荧光体组合物:(Tb 1-xy z w y Y x X z) 其中M选自Sc,In,和/或其中M选自Sc,In ,Ga,Zn或Mg,其中0 1-XY SUB>钪 X SUB> CE ý SUB>) 2 SUB> A 3-P SUB> 其中RE选自镧系元素离子或Y 2 O 3,其中RE选自镧系元素离子或Y 2, SUP> 3 +,A选自Mg,Ca,Sr或Ba,B选自Mg和Zn,其中0 <= p <= 3,0 <= q <= 3,2.5 < = z <= 3.5,0 <= x <= 1,0 <= y <= 0.3,-1.5 <=δ= 1.5; ((1-xyz)Sr x Si 3 Z 3)(3)(3) SC 1-AC SUB>路一 SUB>ð C SUB>) 2 SUB>的Si NW SUB>锗
摘要:
A light emitting package ( 8, 8', 8'', 208, 408 ) includes a printed circuit board ( 10, 10', 10'', 210, 410 ) supporting at least one light emitting die ( 12, 12'', 14, 16, 212, 412 ). A light transmissive cover ( 60, 60', 60'', 260, 460 ) is disposed over the at least one light emitting die. The cover has an open end defining a cover perimeter ( 62, 62', 62'', 262, 462 ) connected with the printed circuit board. An inside surface of the cover together with the printed circuit board defines an interior volume ( 70, 70'', 270, 470 ) containing the at least one light emitting die. An encapsulant ( 76, 76'', 276, 278, 476 ) is disposed in the interior volume and covers at least the light emitting die.
摘要:
A light source (10) comprising: a light engine (16) for generating light, an enclosure (22) and a base (24). The light engine (16) includes a platform (14), and at least one LED (12) disposed on the platform (14). The enclosure (22) surrounds a light generating area of the light engine (16). The base (24) includes an active cooling unit for dissipating thermal energy away from the at least one LED (12); and a conversion circuit (30) for supplying electric power to the light engine (16).
摘要:
Phosphor compositions having the formula EueMmAaGgQqNnXx, where M is at least one of Be, Mg, Ca, Sr, Ba1 Cd, Sn, Pb or Zn; A is at least one of B, Al, Ga, In, Bi1 Sc, Y, La or a rare earth element other than Eu; G is at least one of Si or Ge; Q is at least one of O, S, and Se; X is at least one of F, Cl, Br and I; 0
摘要:
A method for the manufacturing of white LEDs is proposed, which can achieve a tunable color rendering index (CRI) or luminosity through the use of at least two phosphor composition layers of essentially the same emission color coordinates, each composition including at least one individual phosphor compound. The method allows to optimize the devices for CRI at a given minimal luminosity requirement, or vice versa.
摘要:
A light emitting device including a phosphor blend including four or more phosphors emitting within a specific spectral range to optimize the color rendering index (CRI) for a given color coordinated temperature (CCT). The blend will include at least four phosphors selected from the following: a blue phosphor having an emission peak at 400-500 nm, a green phosphor having an emission peak at 500-575 nm, an orange phosphor having an emission peak from 575-615 nm, and a deep red phosphor having an emission peak at 615-680 nm. The preferred blends are used to make light sources with general CRI values (Ra) greater than 95 at CCT's from about 2500 to 8000 K.