This standard specifies the terms and definitions,product classification and nomenclature,technical requirements,inspection rules,signs,packaging,transportation and storage of selfballasted LED reflector lamps.
This standard is applicable to LED lamps with similar shape of tungsten halogen reflector lamp,which are used for general lighting,local lighting or positioning lighting in family,business and similar fields,and integrate stable operation components as one.
The scope of application lists as follows:.
—rated voltage AC220 V,frequency 50 Hz;.
—meet the requirements of GU10,B22,E14 or E27 lamp cap;.
—PAR16,PAR20,PAR30,PAR38 series LED light.
NOTE 1 The diameter of PARxx series lamp is ××/8 inch.
NOTE 2 The “lamp” appearing in this standard represents “Self-ballasted LED reflector lamps”,unless otherwise specified.
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本文件规定了一种计算CIE 1976 L*a*b*颜色空间坐标明度、彩度和色调相关量的方法,它包括两种在颜色空间中表示颜色感知差异的欧氏几何距离的计算方法。本文件适用于使用色匹配函数计算三刺激值的CIE 1931标准色度系统或CIE 1964标准色度系统。本文件可用于描述反射或透射物体的颜色特性,在这种情况下,需要一个比三刺激颜色空间更均匀的三维颜色空间。本文件适用于自发光显示器,如阴极射线管,如果它们被用于模拟反射或透射物体的颜色刺激,并且颜色刺激已适当归一化。本文件不适用于主要由光源自身发光的区域或者镜面反射该发光区域的颜色刺激。附录A中给出了逆向变换计算的方法。
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