| http://www.w3.org/ns/prov#value | - It is also desirable that the thickness of one side face of the light guide member 203 on the light source 1 side and the height of the reflector 2 are equal to each other. [0196] In FIG. 19, a light guide member 203 is, as an example, a transparent plate (hereinafter, referred to as light guide member), which is made from a material such as quartz, glass, transparent resin like acrylic resin or p
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