A device comprises at least one optics member (O) comprising at least one transparent portion (t) and at least one blocking portion (b). The at least one transparent portion (t) is made of one or more materials substantially transparent for light of at least a specific spectral range, referred to as...
source Optical Component patent applications http://ift.tt/1uVBSKJ
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source Optical Component patent applications http://ift.tt/1uVBSKJ
via
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