| http://www.w3.org/ns/prov#value | - oint light sources are light-emitting elements that differ in color, and the aforementioned point light source array is a combination of such light-emitting elements. [0019] Such a combination of light-emitting elements may be a combination of three colors (RGB), a combination that includes colors other than these three colors (for example, orange and yellow green), or a combination of two, four,
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