CPC G02B 27/0172 (2013.01) [G06F 3/011 (2013.01); G02B 2027/014 (2013.01)] | 20 Claims |
1. A head-mounted device (HMD), comprising:
a display;
a metal backing plate; and
a coil;
wherein the coil is configured to generate a magnetic field; and
wherein the backing plate includes at least one perforation configured to reduce an eddy current in the backing plate caused by the magnetic field, wherein the at least one perforation is placed along a path of the eddy current.
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