DISCHARGE LAMP HAVING A LAMP ENVELOPE WITH A TEXTURED SEALED REGION AND METHOD OF MAKING SAME

摘要

DISCHARGE LAMP HAVING A LAMP ENVELOPE WITH A TEXTURED SEALED REGION AND METHOD OF MAKING SAME A discharge lamp having a lamp envelope with at least one sealed end which is disposed in the base member of the discharge lamp includes an excitation arrangement capable to emit light output upon sufficient energization, an energization arrangement disposed in the base member sufficient to excite the lamp envelope. The sealed end of the lamp envelope has a roughened texture disposed around a substantial portion thereof. The texturized region is grit blasted and structurally weaker than the remaining portion of the lamp envelope. At least one sealed end of the lamp envelope is texturized and is effective so as to: shut down the discharge lamp upon the possible occurrence of a high temperature condition and, upon shut down substantially maintain the envelope fill material within the lamp envelope and base member.