The invention discloses a substantially optically transparent composite structure which comprises {TAIL ~ a parent substrate}, one or more intermediate layers and a diamond like carbon layer in which at least one of the intermediate layers has {HEAD ~ thickness} in the range of about 1 micron to about 20 μm 
The invention discloses a substantially optically transparent composite structure which comprises { TAIL ~ a parent substrate } , one or more intermediate layers and a diamond like carbon layer in which at least one of the intermediate layers has { HEAD ~ thickness } in the range of about 1 micron to about 20 μm
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