LAMP WITH SHAPE HAVING HIGH DIMENSIONAL ACCURACY

摘要

A lamp, particularly a discharge lamp, in which an bulb portion of the lamp vessel can be formed with high dimensional accuracy and an advantageous light radiation characteristic and long service life obtained is achieved by the lamp vessel having and its bulb portion and scaling tube portions which are formed from a compacted body of sintered silica glass, and by sealing components, which are hermetically connected to the sealing tube portions and to which an emission part in the bulb is joined, having a first end which is made of silicon dioxide and a second end that is made of a functional gradient material which contains an electrically conductive inorganic material component as the main constituent.