Abstract: Disclosed herein is a lens for a wearable projection system. The lens includes a holographic optical element disposed between layers of the lens. Joints between the holographic optical element and the lens layers on an edge of the lens are covered with a sealant to protect the holographic optical element.

Abstract: Disclosed herein is a lens for a wearable projection system. The lens includes a holographic optical element embedded within the lens and covering a portion of the viewable area of the lens. The lens can be manufactured by providing a first lens blank, affixing the HOE to a portion of the first lens blank, and forming a second lens blank on the first lens blank to embed the HOE between the lens blanks.

Abstract: Disclosed herein is a lens for a wearable projection system. The lens includes a holographic optical element disposed between layers of the lens. Joints between the holographic optical element and the lens layers on an edge of the lens are covered with a sealant to protect the holographic optical element.

Abstract: Disclosed herein is a lens for a wearable projection system. The lens includes a holographic optical element embedded within the lens and covering a portion of the viewable area of the lens. The lens can be manufactured by providing a first lens blank, affixing the HOE to a portion of the first lens blank, and forming a second lens blank on the first lens blank to embed the HOE between the lens blanks.

Abstract: A device for measuring the usage of a liquid, according to one embodiment, includes a first opening for receiving a liquid, a rotating portion positioned to rotate as a liquid passes through the first opening, a generator mechanically paired to the rotating portion, a power bank electrically coupled to the generator, an encoder for generating an indication of rotation of the rotating portion, a wireless transmitter, a circuit configured to generate information based on a rotation of the rotating portion and transmit the information using the wireless transmitter, a second opening for allowing the liquid to pass from the device and a housing coupled to the rotating portion and circuit.

Abstract: Embodiments of the present application relate generally to personal electronics, portable electronics, wearable electronics, and more specifically to a structure and method for a protective covering for a wearable device. Interior and exterior structures of the wearable device are configured to be flexed into a configuration and to retain the configuration after the flexing. Interior structure may include a first flexible substrate having a first relaxation structure and a second flexible substrate having a second relaxation structure. Components or other structures may be connected with the first and/or second flexible substrates. The first and second relaxation structures may be positioned relative to each other to define a flexure point. At least one flexible and electrically non-conductive cover, that may undergo shirking, may conformally cover at least a portion of the interior structure. A flexible overmolding may be formed over the cover and may comprise the exterior structure.