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This visible mirror film, developed by researchers at 3M, was cut using a Synrad laser and FH-Series Marking head using 5W of power
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This highly reflective film, created by the 3M Corporation, was slit using a Synrad sealed CO2 laser and an FH Series marking head. Beam delivery was achieved using an 80 mm focusing lens with a 116-micron spot size and 0.8 mm depth of focus.
The 21 slits, each 5-mm long and approximately 100-microns wide, were cleanly cut using five watts of power at a velocity of five inches per second. Total cycle time was 1.13 seconds.
Visible mirror film is a Multilayer Optical Film (MOF) technology developed by researchers at 3M. The paper-thin film is fabricated using hundreds to thousands of layers of transparent polymers laid with nanometer precision on a substrate. Due to the optical interference effects of the layered polymers, mirror film’s reflectivity is greater than 98% at all angles of incidence.
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