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US 2010/0142184 A1Published application
Fluorescent lamp, light source apparatus and display apparatus
AssigneeSony Corporation
InventorsTakahiro Igarashi, Tsuneo Kusunoki
Life of this patent
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Abstract
In a fluorescent lamp, an initial chromaticity change can be suppressed. An atmosphere in contact with a blue light-emission phosphor forming a phosphor particle layer 3 that contains argon (Ar) and neon (Ne) shown by the following equation A/(A+N)≧0.04, wherein A represents a mole fraction of argon and N represents a mole fraction of neon.
Claims5
A fluorescent lamp comprising:
- at least a blue light-emission phosphor expressed by the following compositional formula:
- (Srx,Bay,Ca(1-x-y))5(PO4)3Cl:Eu
- wherein 0≦x, y≦1 and x+y≦1, and
- an atmosphere in contact with the blue light-emission phosphor that contains argon (Ar) and neon (Ne) shown by the following equation:
- A/(A+N)≧0.04
- wherein A represents a mole fraction of argon and N represents a mole fraction of neon.
3 more elements
A light source apparatus including a fluorescent lamp, wherein
- the fluorescent lamp includes at least a blue light-emission phosphor expressed by the following compositional formula:
- (Srx,Bay,Ca(1-x-y))5(PO4)3Cl:Eu
- wherein 0≦x, y≦1 and x+y≦1, and
- an atmosphere in contact with the blue light-emission phosphor that contains argon (Ar) and neon (Ne) shown by the following equation:
- A/(A+N)≧0.04,
- wherein A represents a mole fraction of argon and N represents a mole fraction of neon.
3 more elements
A display apparatus including a light source apparatus, wherein
- the light source apparatus includes a fluorescent lamp,
- the fluorescent lamp includes at least a blue light-emission phosphor expressed by the following compositional formula:
- (Srx,Bay,Ca(1-x-y))5(PO4)3Cl:Eu
- wherein 0≦x, y≦1 and x+y≦1, and
- an atmosphere in contact with the blue light-emission phosphor that contains argon (Ar) and neon (Ne) shown by the following equation:
- A/(A+N)≧0.04,
- wherein A represents a mole fraction of argon and N represents a mole fraction of neon.
4 more elements
Dependencies are inferred from the claim text.