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Compact HID lamp with multiple protective envelopes

A technology of cladding and protective cover, applied in the field of safe use of high-intensity discharge lamps, can solve problems such as time deterioration

Inactive Publication Date: 2012-05-30
KONINKLIJKE PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This mechanical arrangement has a tendency to deteriorate over time as the glue is subjected to the high temperatures of the lamp

Method used

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  • Compact HID lamp with multiple protective envelopes
  • Compact HID lamp with multiple protective envelopes
  • Compact HID lamp with multiple protective envelopes

Examples

Experimental program
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Effect test

Embodiment Construction

[0025] figure 1 and Figure 1A A lamp 100 is shown comprising a discharge chamber 130 constructed of quartz or ceramic, although any suitable transparent material may be used, which during operation contains an ionized gas 133 which emits light. Discharge chamber 130 is disposed within oxidation resistant enclosure 120 containing vacuum or inert gas 122 . The anti-oxidation casing 120 is placed inside the cylindrical protective cover 110 . The longitudinal axis of the lamp is shown as axis X-X.

[0026] The discharge chamber 130 comprises a sealed pressure envelope 134 containing a gas 133 and two electrical leads 131 and 132 . The discharge chamber 130 is mechanically suspended within the anti-oxidation enclosure 120 via electrical leads 131 and 132 and suspension structures 135 and 136 which include conductive support members which also pass through the anti-oxidation enclosure at the mounting end. The housing 120 is electrically connected to terminals 150 and 151 of the...

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PUM

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Abstract

A High Intensity Discharge (HID) lamp (100) comprised of a discharge chamber (130) disposed within an anti-oxidation envelope (120) and protected by a shroud (110). The shroud encloses the anti-oxidation envelope and thereby the discharge chamber to prevent the emission of fragments in the event that the discharge chamber fails. The shroud is positioned around the anti-oxidation envelope by means of a compressed spring (170) at one end of the envelope tensioned against a collar (160) attaching the other end of the envelope to a base of the lamp.

Description

technical field [0001] This invention relates to the safe use of high intensity discharge (HID) lamps. Background technique [0002] HID lamps operate by sending an arc through a gas mixture enclosed in a light-transmitting discharge chamber, usually made of quartz or ceramic material. Gases ionize in the discharge chamber and produce visible and ultraviolet light. The ionized gas can reach high pressure and generate heat. Oxidation of the lamp parts in open air must be prevented due to the heat generated. Therefore, an outer envelope made of glass or quartz surrounds the discharge chamber. The enclosure maintains a vacuum or can be filled with an inert gas. If the discharge chamber is broken, hot debris will be ejected. If the pressure within the discharge chamber is high enough, the velocity of these fragments can be high enough to pierce the outer envelope surrounding the anaerobic chamber. Therefore, these fragments may injure people or damage property. The presen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J61/34H01J61/50
CPCH01J61/34H01J61/50
Inventor R.J.格尔滕A.杜纳夫斯基K.伯纳德
Owner KONINKLIJKE PHILIPS ELECTRONICS NV