High-pressure discharge lamp
AssigneeKoninklijke Philips Electronic, N.V.
InventorArnd Ritz
Life of this patent
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Abstract
The invention relates to a high-pressure discharge lamp, at least comprising a burner (2) which has a burner wall (25) and a discharge chamber (21) enclosed by said burner wall (25), wherein a region with a lowest temperature and a region with a highest temperature establish themselves at the inner and the outer contour of the burner wall (25), respectively, during operation of the lamp and in dependence on the mounting position of the lamp, and a multilayer interference filter (3) which is provided on a portion of the outer contour of the burner wall (25), which interference filter (3) reflects towards the discharge chamber (21) mainly light in that wavelength range of the IR light that has a causal relationship to the maximum emissive power of the material of the burner wall (25).
Claims10
A high-pressure discharge lamp, at least
- with a burner (2) which has a burner wall (25) and a discharge chamber (21) enclosed by said burner wall (25), wherein a region with a lowest temperature and a region with a highest temperature establish themselves at the inner and the outer contour of the burner wall (25), respectively, during operation of the lamp and in dependence on the mounting position of the lamp,
- and with a multilayer interference filter (3) which is provided on a portion of the outer contour of the burner wall (25), which interference filter (3) reflects towards the discharge chamber (21) mainly light in that wavelength range of the IR light that has a causal relationship to the maximum emissive power of the material of the burner wall (25).
Dependencies are inferred from the claim text.