| http://www.w3.org/ns/prov#value | - ng IR detectable codes in the visible spectrum according to an embodiment of the present invention; and FIGS. 7A-7G, 8A-8B, and 9 illustrate examples of applications for which visible light-blocking coatings according to embodiments of the present invention enhance the application by thinly covering IR-discernible markings to enable an IR vision system to detect optical codes while preventing huma
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