| http://www.w3.org/ns/prov#value | - BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will become more apparent by describing in detail preferred embodiments thereof with reference to the attached drawings in which: FIG. 1 is a view illustrating the optical arrangement of a conventional uniform light illuminating device; FIG. 2 is a perspective view of a light tunnel according to
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