Illuminant device for white color standard
专利汇可以提供Illuminant device for white color standard专利检索，专利查询，专利分析的服务。并且PURPOSE: To obtain an illuminant device for white color standard with which desired chromaticity point can be obtained using no filter made of plastic or gelatin by using the fluorescent lamp adjusted to the specified chromaticity.
CONSTITUTION: The luminescent light from the fluorescent lamp 1 constructed by coating and adhering the phosphor on the inside surface of a glass tube is emitted forward through the reflection plate 2 to reflect the light output from the light source forward, mesh filter 3 for adjusting the brightness, and the diffuse transmission plate 4. The reciprocal correlated color temperature of the enclosed fluorescent lamp is smaller than that of the luminous plate. It is desirable to use the lamp which is smaller by 15W35(MK
-1 ) in the reciprocal correlated color temperature and of which chromaticity coordinate on the CIE
uv chromaticity diagram is smaller by 0W0.01(uv) in the distance from the locus of the perfect radiator respectively.
COPYRIGHT: (C)1987,JPO&Japio，下面是Illuminant device for white color standard专利的具体信息内容。
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