Antenna designs for wearable heads-up displays
The present disclosure relates to systems, devices and methods for eyeglasses frames and eyeglasses frames assemblies for wearable electronic devices, and particularly relates to systems, devices, and methods that employ an antenna in eyeglasses frames and eyeglasses frames assemblies for wearable heads-up displays. In an embodiment, a pair of eyeglasses includes a first arm housing a radio and an antenna passing internally from the radio to at least a portion of a front eyeglass frame, which includes a first and second rim securely physically coupled by a bridge. A power source is coupled to the first arm or a second arm and electrically coupled to the radio via an electrically conductive path.
1. An apparatus, comprising:
a front eyeglass frame, including: a first rim, a second rim, and a bridge connecting the first rim with the second rim;
a first arm coupled to the first rim;
a radio housed by the first arm;
a second arm coupled to the second rim;
circuitry communicatively coupleable to a power source, the circuitry housed by the second arm;
a first electrically conductive path that electrically couples the radio to the circuitry, the first electrically conductive path extending along a portion of the second rim, the bridge, and a portion of the first rim; and
an antenna communicatively coupled to the radio, the antenna extending along at least a portion of the first rim.
2. The apparatus of claim 1 wherein the first rim includes a first upper peripheral portion and a first lower peripheral portion, and wherein the second rim includes a second upper peripheral portion and a second lower peripheral portion.
3. The apparatus of claim 2 wherein the antenna passes internally from the radio along the first upper peripheral portion of the first rim to at least the bridge.
4. The apparatus of claim 3 wherein the first electrically conductive path passes internally along the second upper peripheral portion of the second rim, the bridge, and the first lower peripheral portion of the first rim.
5. The apparatus of claim 3 wherein the first electrically conductive path passes internally along the second lower peripheral portion of the second rim, the bridge, and the first lower peripheral portion of the first rim.
6. The apparatus of claim 2 wherein the antenna passes internally from the radio along the first lower peripheral portion of the first rim to at least proximate the bridge.
7. The apparatus of claim 6 wherein the first electrically conductive path passes internally along the second upper peripheral portion of the second rim, the bridge, and the first upper peripheral portion of the first rim.
8. The apparatus of claim 6 wherein the first electrically conductive path passes internally along the second lower peripheral portion of the second rim, the bridge, and the first upper peripheral portion of the first rim.
9. The apparatus of claim 2 wherein the first electrically conductive path passes internally along the second upper peripheral portion of the second rim, the bridge, and the first upper peripheral portion of the first rim.
10. The apparatus of claim 1 wherein the antenna comprises a coaxial cable having a shielded portion and an exposed portion.
11. The apparatus of claim 10 wherein the shielded portion of the antenna extends in the first arm and the unshielded portion of the antenna extends in the first rim.
12. The apparatus of claim 11 wherein the unshielded portion of the antenna has a length equal to a quarter wavelength of a signal to be transmitted or received by the antenna.
13. The apparatus of claim 1 , further comprising:
display components carried by at least the first arm.
14. The apparatus of claim 1 , further comprising:
a first lens mounted in the first rim; and
a second lens mounted in the second rim.
15. The apparatus of claim 14 wherein the first electrically conductive path extends through the first rim overtop of the first lens and the antenna extends through the first rim underneath the first lens.
16. The apparatus of claim 14 wherein the first electrically conductive path extends through the first rim underneath the first lens and the antenna extends through the first rim overtop of the first lens.