The device 2 wherein the at least one frame member comprises at least one protruding structure and the light transmitting film defines at least one aperture or notch, and {HEAD ~ each} of the at least one aperture or {TAIL ~ notch} is configured to receive a corresponding one of the at least one protruding structure to physically couple the light transmitting film to the at least one frame member 
of
The device 2 wherein the at least one frame member comprises at least one protruding structure and the light transmitting film defines at least one aperture or notch , and { HEAD ~ each } of the at least one aperture or { TAIL ~ notch } is configured to receive a corresponding one of the at least one protruding structure to physically couple the light transmitting film to the at least one frame member
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