| http://www.w3.org/ns/prov#value | - When it comes to a short arc type metal halide discharge lamp, the illumination apparatus of the present invention is suitable for use in illumination apparatus using the discharge lamp in combination with an optical system such as a reflector or a lens, e.g., a liquid crystal projector or an overhead projector, in a headlamp for a vehicle such as an automobile, and in illumination apparatus for s
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