Abstract: An ear-worn hearing device including an acoustic transducer and a physiological sensor located between an acoustic sealing flange and an inner end portion of the hearing device is disclosed. The flange can be integrated with the hearing device or be an integral part of a removable ear dome. The flange is configured to form at least a partial seal with the user's ear. The flange can also prevent light from entering into the user's ear canal. A removable ear dome can be located on the hearing device by a portion of the physiological sensor protruding from the housing.

Abstract: A balanced armature receiver can include a motor disposed in a case. The motor can include an armature having a first portion fixed to and extending from a yoke and a second portion extending through a coil tunnel. The second portion can have a free end-portion movably disposed in a magnet gap. The balanced armature receiver can include a damping compound-locating structure disposed on one or both of the armature and another portion of the receiver proximate the armature. The balanced armature receiver can include damping compound contacting the damping compound-locating structure and located between the armature and another portion of the receiver.

Abstract: There is disclosed an optical element having a first surface and a second surface bounded by a circular periphery. A rim having an inner surface may extend from the second surface proximate the periphery. At least a portion of the inner surface of the rim may be convex.

Abstract: There is disclosed an optical element having a first surface and a second surface bounded by a circular periphery. A rim having an inner surface may extend from the second surface proximate the periphery. At least a portion of the inner surface of the rim may be convex.