Improved insect attraction light source

A technology of attracting insects and phosphors, applied in the field of fluorescent lamps, can solve the problems of increasing the service life and affecting the efficiency of attracting insects

Inactive Publication Date: 2009-06-03
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The ability of a lamp to maintain a sufficient level of UVA light output for extended periods of time can significantly increase the lifespan of the lamp, affecting its effectiveness as an insect trap

Method used

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  • Improved insect attraction light source
  • Improved insect attraction light source
  • Improved insect attraction light source

Examples

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example 1

[0032] The UVA light transmittance of different light-transmitting glass covers was measured and compared with conventional ones in the field. Table 1 below shows the percent UV transmittance of substantially cerium-free glasses and conventional soda-lime glasses over the wavelength range of UVA light. The UV transmittance data represents the UV transmittance per 1 mm of glass thickness of the cover glass. In the wider UV light wavelength range, the percentage of UV transmittance in the range of about 250 to 450nm is in Image 6 displayed in . The cerium-free cover glass consisted of cerium-free type 360 ​​glass supplied by EMGO Industriezone Baledijik 1050, Lommel 3920, Belgium. The cerium-free glass used contains less than 0.2 weight percent ceria. The soda lime glass used is conventional and well known in the art.

[0033] Table 1

[0034]

[0035] As shown, the cerium-free glass cover has increased UVA transmission within the insect eye sensitivity curve relative t...

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PUM

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Abstract

The present invention provides a lamp having improved insect attraction. The lamp (10) has a light-transmissive envelope (12) being substantially free of cerium. The lamp (10) also has a phosphor layer (16) comprising at least one phosphor having an emission band in the UVA light region for attracting insects. The at least one phosphor of the phosphor layer (16) desirably has an emission spectrum in the UVA region that sufficiently matches an insect's eye sensitivity curve. For instance, the at least one phosphor can have an emission band in the UVA wavelength range of 320 to 400 nm, wherein said emission band has a maximum between 325 to 365 nm.

Description

technical field [0001] The present invention relates to a lamp, and more particularly to a fluorescent lamp with improved insect-attracting properties. Background technique [0002] Insect lights emit energy in the form of light of selected wavelengths. Generally, insects can only see ultraviolet light and short-wavelength visible light because insects have photoadaptive response curves that are sensitive to light in the wavelength range of 300-400nm (ultraviolet) and 600-650nm (orange). Ultraviolet radiation includes three ranges, UVA from 320 to 400nm, UVB from 280 to 320nm, and UVC from 100 to 280nm. Typically, artificial light sources produce a certain amount of UV radiation. In particular, fluorescent lighting produces minimal light in the UVA range. [0003] In the UVA range, fluorescent lighting that emits light at wavelengths near 350 nm typically includes lead-doped phosphors to emit light. The use of lead-doped phosphors creates environmental hazards and theref...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J61/30H01J61/12H01J61/35
CPCH01J61/44A01M1/04H01J61/40H01J61/302H01J61/72
Inventor C·E·威尔逊O·久拉西G·雷韦什
Owner GENERAL ELECTRIC CO
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