| 摘要 |
A lamp 20 has a light emitting element 22 within a sealed transparent vessel 24. The vessel comprises a cylindrical section 38 with a longitudinal axis L in parallel to a longitudinal axis F of the light emitting element. In order to provide a lamp suited for compact reflectors, a heat shielding element 30, 40 is arranged to shield at least infrared light. The heat shielding element 30, 40 is arranged in parallel to the longitudinal axis F of the light emitting element 22 and has an axial extension of at least 80 % of the light emitting element 22. The heat shielding element 30, 40 is arranged to shield infrared light emitted into directions perpendicular to the longitudinal axis F covering a circumferential extension of 20° - 120° measured in cross section. |
