Ultraviolet cut material, ultraviolet cut filter, discharge lamp and lighting apparatus

A technology for cut-off filtering and ultraviolet light, which is applied to lighting devices, lighting device parts, gas discharge lamp parts, etc. It can reduce problems such as UV damage, prevent damage to organisms caused by UV rays, improve UV light absorption characteristics, and increase temperature dependence.
CN101045550AInactive Publication Date: 2007-10-03TOSHIBA LIGHTING & TECH CORP
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
TOSHIBA LIGHTING & TECH CORP
Publication Date
2007-10-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides an ultraviolet cut material whose main ingredient is zinc oxide particulates 1 adulterated with indium, the particulates contain solid solution having crystal structure of aeonite, the half-value width of diffraction peak of X ray diffraction surface (110)'s diffraction angle 2theta is between 0.4~0.1 degrees. The invention can provide ultraviolet cut material and ultraviolet cut filter F and so on, because the aeonite crystal structure of zinc oxide particulates 1 adulterated with indium is restricted in the range especially prescribed by X ray diffraction, the cutoff wavelength's temperature dependency is improved, especially the absorption characteristic of ultraviolet and blue light under high temperature condition is improved. The ultraviolet cut filter is applicable for discharge lamp such as high voltage discharge lamp as well as lighting apparatus.
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Description

technical field

[0001] The present invention relates to an ultraviolet cut material (ultraviolet cut material) or an ultraviolet cut filter (ultraviolet cut filter) using the ultraviolet cut material, and a discharge lamp (discharge lamp) having the ultraviolet cut material and the ultraviolet cut filter ) and a lighting fixture, wherein the ultraviolet cutoff material forms an ultraviolet cutoff filter that cuts off at least ultraviolet rays. Background technique

[0002] There are known light sources for lighting and lighting fixtures that are provided with a light cut filter that cuts (cuts off) ultraviolet rays and that can radiate visible light (visible light). The light sources and lighting fixtures are mainly used for low-ultraviolet insect-attraction or clean room lighting.

[0003] As the previous lamps or lighting fixtures for low insect-attraction, it is well known that there is the following structure: the surface of the light-transmitting material is coated wit...

Claims

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