Visual tracking device

Details Visual tracking device Visual tracking device

B - Operations, Transporting

43

M

B43M 99/00 (2010.01) G09B 17/02 (2006.01)

Patent

CA 2305917

A visual tracking device (10) comprises a light screening member (12) having a relatively high light transmission region (50) and a relatively low light transmission region (52) substantially surrounding the relatively high light transmission region (50). By means of this arrangement, text, symbols or other markings underlying the high light transmission region (50) are readily discernible and text, symbols and other markings underlying the low light transmission region (52) are less readily discernable.

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