Abstract: Described herein are systems and methods for mounting optical sensors in physiological monitoring devices worn by a user to sense, measure, and/or display physiological information. Optical sensors may be mounted in the rear face of the device, emit light proximate a targeted area of a user's body, and detect light reflected from the targeted area. The optical sensor may be mounted in a housing or caseback such that at least a portion of the optical sensor protrudes a distance from at least a portion of the housing. The protrusion distance may be adjustable such that a user may achieve a customized fit of the wearable device. Adjustment of the protrusion distance may also result in a customized level of contact and/or pressure between the optical sensor and the targeted area which may, in turn, result in more reliable and accurate sensing of physiological information.

Abstract: Described herein are systems and methods for mounting optical sensors in a physiological monitoring device worn by a user to sense, measure, communicate, and/or display physiological information. The monitoring devices may be embodied as, for example, a fitness band, a bracelet, a watch, or some other wearable device such as an activity tracker, a health, wellness, or sleep monitor, or an athletic training device. The device may comprise one or more light sources and optical detectors. Optical lenses may be mounted in a face of the device for partially receiving or containing the light sources and optical detectors. The devices and methods described herein may optically isolate the light source(s) from the optical detector(s) to ensure the accurate and reliable detection and measurement of physiological information.

Abstract: A portable navigation prompt device comprises a processor; a wireless communication module; a discrete light source arrangement; and a memory having stored therein executable instructions configured to cause the portable navigation prompt device to establish wireless communication with a master navigation device configured to generate route navigation events based on progress along a navigable route; receive information representing a route navigation event from the master navigation device, wherein the route navigation event is selected from a plurality of available route navigation events; and output a route navigation prompt that corresponds to the first route navigation event, wherein the route navigation prompt comprises a first illumination of the discrete light source arrangement that distinguishes the route navigation event from other available route navigation events. The discrete light source arrangement may comprise, for example, a plurality of light emitting diodes (LEDs).