Light emitting apparatus

Details Light emitting apparatus Light emitting apparatus

2009-01-16

2011-10-18

Patel, Ashok (Department: 2889)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S512000, C428S917000, C362S800000

Reexamination Certificate

active

08040041

ABSTRACT:
A red nitride phosphor of formula (I) or (II), and two green phosphors of formulas (III) and/or (IV) are included.in-line-formulae description="In-line Formulae" end="lead"?MwAlxSiyBzN((2/3)w+x+(4/3)y+z):Eu2+  (I)in-line-formulae description="In-line Formulae" end="tail"?M is any of Mg, Ca, Sr and Ba, and 0.5≦w≦3, x=1, 0.5≦y≦3 and 0≦z≦0.5,in-line-formulae description="In-line Formulae" end="lead"?MpSiqN((2/3)p+(4/3)q):EU2+  (II)in-line-formulae description="In-line Formulae" end="tail"?1.5≦p≦2.5 and 4.5≦q≦5.5,in-line-formulae description="In-line Formulae" end="lead"?MxMgSizOaXb:Eu2+  (III)in-line-formulae description="In-line Formulae" end="tail"?M is any of Ca, Sr, Ba, Zn and Mn, X is any of F, Cl, Br and I, and 6.5≦x<8.0, 3.7≦z≦4.3, a=x+1+2z−b/2 and 1.0≦b≦1.9,in-line-formulae description="In-line Formulae" end="lead"?SicAldOfNg:Eu2+  (IV)in-line-formulae description="In-line Formulae" end="tail"?c+d=6, 5.0≦c<6, 0<d≦1.0, 0.001<f≦1, 7≦g<8.

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