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US 11,965,640 B2Granted
Super-high pressure lamp
AssigneeUshio Denki Kabushiki Kaisha
InventorsKazuyuki Mori, Takayuki Hiraishi, Junya Asayama
Life of this patent
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Abstract
Providing a super-high pressure lamp having increased pressure resistance. The super-high pressure lamp includes: an arc tube; and a sealing portion in which a front end of an exhaust pipe capable of exhausting gas in the arc tube or supplying gas into the arc tube is sealed, wherein, in the sealing portion, a height of a first sealed space, which has a tapered shape that becomes narrower toward a front end of the sealing portion, is larger than twice an inner diameter of the first sealed space.
Claims11
A super-high pressure lamp comprising:
- an arc tube;
- and
- a sealing portion in which a front end of an exhaust pipe capable of exhausting gas in the arc tube or supplying gas into the arc tube is sealed,
- wherein, in the sealing portion, a height of a first sealed space, which has a tapered shape that becomes narrower toward a front end of the sealing portion, is larger than twice an inner diameter of the first sealed space.
1 more element
Dependencies are inferred from the claim text.