Optiva, Inc.

Pacific Biosciences Laboratories, Inc.

Ward Edwin Harris

Kenneth A Pilcher

David Giuliani

Robert E Akridge

Stephen M Meginniss, Iii

Lokanathan M Iyer

Brian D Hench

The acne treatment devices use an array of LEDs, which emit monochromatic light substantially at a wavelength of 405 nanometers, which is coincident with the peak absorbance of light by acne porphyrins. The emitted light is directed from the light source to an acne area of the skin. The device can either be hand-held, with the LEDs mounted on a handle portion, or an LED can be mounted on a patch-like mounting element, which is adapted to be secured to the skin for longer exposure at less intensity.

System for treatment of acne skin condition using a narrow band light source

A device use indicator (,), which is designed to signal a predetermined amount of use of a device as a function of the amount of vibration of the device is provided. The indicator is adapted to be coupled or attached to a device (,). The indicator includes a first disk (,), a second disk (,), and an intermediate layer (,) separating the first disk from the second disk. The first disk retains a chemical therein. In operation, when the device to which the use indicator is attached is used, vibration of the device and the indicator triggers release of the chemical from the first disk. The chemical then travels through the intermediate layer to be received by the second disk. The chemical, when received by the second disk in excess of a predetermined amount, creates a detectable indication. The detectable indication, for example, a color or shade change produced in the second disk, signals a user that the device has been used for a predetermined amount of time as a function of the amount of its vibration.

Device use indicator

Growing community of inventors

Bellevue, WA, United States of America

Ward Edwin Harris