Dual port constrained acoustic volume
A portable eyewear electronic device that includes a speaker module and methods of assembly of the device are presented. The electronic eyewear device includes a speaker module that emits acoustic radiation that is channeled through a carrier contained within a temple to one or more acoustic ports near a user's ear.
1. An electronic eyewear device, comprising:
a frame configured to be worn on the head of a user, the frame comprising an eyeglass section and a temple extending rearwardly from the eyeglass section, the temple comprising an internal space having an inner wall and an acoustic port having an acoustic port axis;
an L-shaped carrier configured to be received within the internal space and to engage the inner wall of the temple to form a channel; and
a speaker module configured to be received by the L-shaped carrier, wherein the speaker module emits acoustic radiation through the channel along a radiation axis unaligned with the acoustic port axis, wherein the acoustic radiation is emitted from the temple through the acoustic port.
2. The electronic eyewear device of claim 1 , wherein the internal space is elongated.
3. The electronic eyewear device of claim 1 , wherein the channel extends from the speaker module to the acoustic port.
4. The electronic eyewear device of claim 1 , wherein the L-shaped carrier is releasably attached to the temple internal space.
5. The electronic eyewear device of claim 4 , wherein the L-shaped carrier is releasably attached to the temple internal space by a mechanical fastener.
6. The electronic eyewear device of claim 1 , wherein the L-shaped carrier is affixed to the temple internal space.
7. The electronic eyewear device of claim 6 , wherein the L-shaped carrier is affixed to the temple internal space by an adhesive.
8. The electronic eyewear device of claim 7 , wherein the adhesive is applied to form an adhesive path that substantially corresponds to the perimeter of the L-shaped carrier.
9. The electronic eyewear device of claim 8 , wherein the adhesive path confers acoustic impedance.
10. The electronic eyewear device of claim 9 , wherein the thickness of at least 50% of the adhesive path is 1 millimeter or greater.
11. The electronic eyewear device of claim 1 , wherein the L-shaped carrier comprises a mesh covering the channel.
12. The electronic eyewear device of claim 1 , wherein the speaker module is affixed to the L-shaped carrier by mechanical fastener.
13. The electronic eyewear device of claim 1 , wherein the acoustic port is positioned from the speaker module at least twice the length of the speaker module.
14. The electronic eyewear device of claim 1 , further comprising electronic circuitry coupled to the frame and arranged to wirelessly transmit or receive audio signals produced by the speaker module.
15. The electronic eyewear device of claim 14 , wherein the electronic circuitry comprises an antenna built into a temple.
16. A method of assembling an electronic eyewear device having improved acoustic volume, comprising:
providing an electronic eyewear device including a temple comprising a housing having an internal space and an acoustic port;
providing a speaker module comprising an audio transducer configured to receive electrical input;
attaching the speaker module to an L-shaped carrier; and
attaching the L-shaped carrier to an interior surface within the temple housing, wherein the L-shaped carrier is configured to engage the interior surface to form a channel that acoustically couples the speaker module to the acoustic port,
wherein the speaker module emits acoustic radiation through the channel along a radiation axis unaligned with the acoustic port axis, wherein the acoustic radiation is emitted from the temple through the acoustic port.
17. The method of claim 16 , wherein the step of attaching the L-shaped carrier to the interior surface of the housing further comprises the step of applying a glue path.
18. The method of claim 17 , wherein the glue path is applied to the interior surface of the temple housing.
19. The method of claim 17 , wherein the glue path substantially corresponds to the perimeter of the L-shaped carrier.
20. The method of claim 16 , wherein the step of attaching the speaker module to a carrier precedes the step of attaching the L-shaped carrier to an interior surface within the temple housing.