Wearable heads-up displays with antennas and antennas for same
Systems, devices and methods for eyeglasses frames and eyeglasses frames assemblies for wearable electronic devices, and particularly systems, devices, and methods that employ an antenna in eyeglasses frames and eyeglasses frames assemblies for wearable heads-up displays, the systems, devices and methods including a pair of eyeglasses having a first arm housing a radio and an antenna, wherein the antenna has a principal axis and main lobe extending outward therefrom and 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 that physically couples the first rim and the second rim;
a first arm coupled to the first rim and having a first temple portion;
a second arm coupled to the second rim and having a second temple portion;
a printed circuit board; and
a directional antenna carried by the printed circuit board, the directional antenna having a main lobe with a principal axis that extends outwardly from the printed circuit board, the printed circuit board and the directional antenna housed in the first temple portion of the first arm with the principal axis of the directional antenna directed outwardly therefrom.
2. The apparatus of claim 1 wherein the directional antenna is a spiral antenna.
3. The apparatus of claim 1 wherein the directional antenna comprises a spiral trace of an electrically conductive material carried by one surface of the printed circuit board.
4. The apparatus of claim 1 wherein the directional antenna comprises a spiral trace of an electrically conductive material carried along two or more layers of the printed circuit board.
5. The apparatus of claim 1 wherein the principal axis of the directional antenna extends outwardly from a front of the first temple portion into a field-of-vision defined by the front eyeglass frame.
6. The apparatus of claim 1 wherein the printed circuit board has a major face, and the directional antenna is planar with the major face of the printed circuit board and the principal axis of the directional antenna extends perpendicularly with respect to the major face of the printed circuit board.
7. The apparatus of claim 6 wherein the printed circuit board is oriented in the first temple portion with the principal axis of the directional antenna extending perpendicularly from a front end of the first temple portion.
8. The apparatus of claim 6 wherein the first temple portion is a metal channel member.
9. The apparatus of claim 8 wherein the principal axis of the directional antenna extends outwardly from a front end of the first temple portion, the front end of the first temple portion at least proximate a portion of the front eyeglass frame.
10. The apparatus of claim 9 wherein the metal channel member has a U-shaped metal cross section and a non-metallic front end, and the principal axis of the directional antenna extends outwardly from the front end of the first temple portion.
11. The apparatus of claim 8 wherein a portion of the printed circuit board is thermally conductively coupled to the first temple portion.
12. The apparatus of claim 8 , further comprising:
a thermally conductive adhesive that secures a major surface of the printed circuit board thermally conductively to the metal channel member.
13. The apparatus of claim 1 , further comprising:
a radio housed in the first temple portion of the first arm and electrically coupled to the directional antenna.
14. The apparatus of claim 13 , further comprising:
circuitry communicatively coupleable to a power source housed in the second temple portion of the second arm and in electrical communication with the radio by an electrically conductive path passing through the first rim, the second rim, and the bridge.
15. The apparatus of claim 14 wherein the electrically conductive path passes internally through the first rim, the second rim, and the bridge.
16. The apparatus of claim 13 , further comprising:
circuitry communicatively coupleable to a power source housed in the first temple portion of the first arm and in electrical communication with the radio by an electrically conductive path passing through a portion of the first temple portion of the first arm.
17. The apparatus of claim 1 , further comprising:
a first lens mounted in the first rim; and
a second lens mounted in the second rim.
18. The apparatus of claim 1 wherein the first temple portion of the first arm includes a first hinge and the second temple portion of the second arm includes a second hinge.