Shade body possessing yellow loght area for light source and preparing method

Abstract

Yellow paste sprayed onto inner face and outer face of glass luminous tube of light source cover generates yellow light zone in wavelength 500nm-580nm. Wavelengths of the yellow light zone less than 500nm-580nm are absorbable. Further, influence caused by ultraviolet radiation is isolated totally. The invention is applicable to illumination in dust free room for preparing high light sensitive semiconductor. In addition, the invntion has effects of environmental protection, energy saving and driving mosquito.

Description

technical field [0001] The invention relates to a light source cover with a yellow light area and a manufacturing method thereof, in particular to a light source cover which is applied to the lighting of a semiconductor factory, adds a yellow agent outside the light source cover, prevents ultraviolet rays from leaking out, and has the effect of repelling mosquitoes. body and its method of manufacture. Background technique [0002] Such as figure 1 As shown, the structure of the general fluorescent tube 1a is that the inner wall of the glass tube 10a is coated with a fluorescent substance 15a, and both ends of the glass tube 10a are equipped with a filament 11a, and the filament 11a has a double-wound or triple-wound electrode. , and the filament 11a is coated with electron-emitting substances; however, in order to make it easy to discharge, the fluorescent lamp 1a is sealed with 2.33torr pressure argon gas (or a mixed rare gas) and an appropriate amount of mercury in the tu...

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Problems solved by technology

[0003] Additionally, if figure 2 As shown, the wavelength range of visible light is between 380nm and 760nm (the wavelength of yellow light is 500nm to 580nm), and the wavelength below 380nm is ultraviolet rays. For lighting equipment with photosensitive materials such as IC factories, a layer of yellow PE film 2a is added outside the glass tube 10a of the fluorescent lamp 1a. The yellow PE film 2a can isolate light with a wavelength below 500nm and avoid changes in photosensitive materials with a wavelength below 500nm. In addition, the yellow PE film 2a has a protective effect, that is, when the lamp tube is accidentally damaged, the glass fragments and the fluorescent powder in the tube will not splash around and pollute the environment. However, the yellow PE film 2a will not change with time or temperature. It will cause discoloration or deterioration, and the yellow PE film 2a is non-recyclable and not environmentally friendly

[0004] As can be seen from the above, the above-mentioned known fluorescent lamps obviously have disadvantages in actual use, and can be improved.

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