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Low-pressure mercury vapor discharge lamp

A technology of low-pressure mercury vapor and discharge lamps, which is applied to parts of low-pressure discharge lamps and gas discharge lamps, and can solve environmental hazards and other problems

Active Publication Date: 2009-05-20
S.A.E.S.盖特斯股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is harmful to the environment if not disposed of properly after the end of service life

Method used

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  • Low-pressure mercury vapor discharge lamp
  • Low-pressure mercury vapor discharge lamp
  • Low-pressure mercury vapor discharge lamp

Examples

Experimental program
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Embodiment Construction

[0040] The low-pressure mercury vapor discharge lamp shown in FIG. 1 comprises a tubular, light-transmissive discharge vessel 2 . Only one end 3 of the discharge lamp is shown in the figures, the actual discharge lamp comprises two opposite identical ends 3 each closing the long glass discharge vessel 2 on one side. The discharge vessel 2 closes the discharge space 1 in a gas-tight manner, the discharge space 1 being provided with a filling of mercury and a rare gas. Inside the discharge vessel 2 there is a layer of fluorescent material (not shown in FIG. 1 ), which is able to convert ultraviolet light into UV-A light and UV-B light and / or visible light. In an alternative embodiment, there is no phosphor layer. In another alternative embodiment, the low pressure mercury vapor discharge lamp comprises a compact fluorescent lamp (not shown). A tubular discharge vessel of a so-called compact fluorescent lamp usually comprises a collection of shorter straight sections with a sma...

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Abstract

The low-pressure mercury vapor discharge lamp has a light-transmitting discharge vessel (2) enclosing, in a gastight manner, a discharge space (1) provided with a filling of mercury and a rare gas. The discharge vessel comprises discharge means (8) for maintaining a discharge in the discharge space (1). The discharge vessel comprises dispenser means (20) for controllably dispensing hydrogen into the discharge space. The hydrogen gas pressure is in the range between 10-3 Pa and 10 Pa. Preferably, the hydrogen gas pressure is in the range between 10-2 Pa and 1 Pa. A low-pressure mercury vapor discharge lamp with a good maintenance is obtained.

Description

technical field [0001] The invention relates to low-pressure mercury vapor discharge lamps comprising a light-transmissive discharge vessel, [0002] The discharge vessel closes the discharge space with a filling of mercury and a rare gas in a gas-tight manner, [0003] The discharge vessel includes discharge means for maintaining discharge in the discharge space. [0004] The invention also relates to a method of manufacturing a low-pressure mercury vapor discharge lamp. Background technique [0005] In mercury vapor discharge lamps, mercury constitutes the main component for (efficiently) generating ultraviolet (UV) light. A luminescent layer comprising luminescent material such as phosphors may be present on the inner wall of the discharge vessel in order to convert the UV light into other wavelengths such as UV-B and UV-A for tanning purposes (solar panel lamps), or Converts ultraviolet light into visible radiation for general lighting purposes. Such discharge lamps ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J61/72H01J61/24H01J61/28
CPCH01J61/28H01J61/72
Inventor I·J·M·斯尼克斯-亨德里克E·C·P·M·沃森E·德比尔B·J·德马格特C·博菲托A·科拉扎
Owner S.A.E.S.盖特斯股份有限公司