| 摘要 |
A high intensity discharge lamp (10a) contains an unshrouded arc tube (14 a) mounted in an outer envelope (12a). The outer envelope is surrounded by a protective device (50). The device (50) comprises a translucent pocket (52) constructed of a fine mesh having a strength component sufficient to retain any shards from the outer envelope or arc tube in the event of an arc tube burst and a temperature component sufficient to handle arc tube shards that can have a temperature of ~ 1000.degree.C.
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