Illuminant and illuminant lamp comprising said illuminant
AssigneeOSRAM GmbH
InventorsRenate Hirrle, Armin Konrad, Robert Otto, Joerg Strauss
Life of this patent
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Abstract
A phosphor for low-pressure discharge lamps is disclosed, wherein the phosphor is present in the form of phosphor grains coated with a protective layer, wherein the protective layer consists of a metal oxide, a metal borate, a metal phosphate or mixtures thereof.
Claims21
A phosphor for low-pressure discharge lamps,
- wherein
- the phosphor is present in the form of phosphor grains coated with a protective layer, wherein the protective layer consists of a metal oxide, a metal borate, a metal phosphate or mixtures thereof.
A phosphor composition for low-pressure discharge lamps,
- wherein
- the phosphor composition contains at least one phosphor, wherein at least one phosphor of the at least one phosphor is present in the form of phosphor grains coated with a protective layer, wherein the protective layer consists of a metal oxide, a metal borate, a metal phosphate or mixtures thereof.
A low-pressure discharge lamp comprising a discharge vessel filled with a filling gas composition, and comprising a multilayered phosphor coating comprising a phosphor layer facing the inner side of the discharge vessel and a phosphor layer facing the discharge space,
- wherein the phosphor layer facing the inner side of the discharge vessel contains a phosphor composition, wherein
- the phosphor composition contains at least one phosphor, wherein at least one phosphor of the at least one phosphor is present in the form of phosphor grains coated with a protective laver, wherein the protective layer consists of a metal oxide, a metal borate, a metal phosphate or mixtures thereof.
(canceled)
Dependencies are inferred from the claim text.