Abstract: A wearable device has a plurality of sensors surrounding a user's arm or wrist and provides depth information about the user's environment. Each sensor in the plurality of sensors has a field-of-view that may include the user's arm, torso, and surrounding environment. A controller receives data from the plurality of sensors and merges the data to create a composite image or depth point cloud. The device utilizes low-resolution sensors, with the composite image having a greater resolution and field-of-view than any individual sensor. The device is worn on the user's arm or wrist and can be used for static or continuous hand pose estimation, whole-arm pose estimation, and object detection, among other applications.

Abstract: A waveguide light diffuser panel is disclosed that diffuses source lights and transmits ambient light. Conventional waveguide light diffusers diffuse all light and therefore provide a hazy outcome. In manufacturing a waveguide transparent diffuser, a printing method, such as inkjet printing, may be used. In this method, dot micro-lenses are formed on one side of a panel, which cover a portion of the panel in a staggered or random arrangement. The other side of the panel is coated with an anti-reflective material, or the shape of the panel may be concave. The dot shape is designed for efficient reflection of the incident light, as opposed to conventional hazy diffusers in which the reflection efficiency is low. High reflection efficiency in this case compensates for the reduced dot coverage.

Abstract: A light diffuser including a transparent substrate having a top surface and a bottom surface. The top surface having formed thereon a plurality of tilted plane portions including a first tilted plane portion and a second tilted plane portion. The first tilted plane portion being tilted in a first direction and the second tilted plane portion being tilted in a second direction. The first direction of the first tilted plane portion being different from the second direction of the second tilted plane portion.

Abstract: Electrical oscillations are supplied to electrodes of a diathermal heating chamber. A liquid is passed through the diathermal heating chamber so as to be heated. The liquid has a minimum level of dissolved solids, which is replenished over time or when the dissolved solids in the liquid fall below a predetermined minimum level. Alternatively, when the level of dissolved solids is excessive, current input or liquid temperature is reduced.