Fusion Uv Systems, Inc.

Heraeus Noblelight America LLC

Keith Andrew Helms

Jonathan David Barry

Timothy Allan Dombkowski

James Robert Elliott

A photo-detector device may include a substrate having a bottom surface. The photo-detector device may further include a photocell secured to the bottom surface of the substrate. The photo-detector device may further include a metallic block having a top portion secured to a bottom surface of the substrate to enclose the photocell, wherein an opening is formed within the metallic block that extends from the top portion of the metallic block to a bottom portion of the metallic block to form an aperture for light to travel through the metallic block to the photocell. The photo-detector device may further include a member insertable into the metallic block to vary an open area of the aperture.

Tunable photo-detector device

The invention is a microwave powered lamp (). The lamp includes a light reflective cavity (); an electrodeless bulb () contained in the light reflective cavity () from which light is emitted when the electrodeless bulb is excited by microwaves; a magnetron () for providing the microwaves for exciting the electrodeless bulb; a waveguide () which couples the microwaves emitted by the magnetron to the light reflective cavity for exciting the electrodeless bulb; a housing () which contains the lamp; a detector () disposed within the housing, which detects the microwaves which are not coupled to the bulb during operation of the magnetron and outputs a signal indicative of a level of received microwaves; and a magnetron control (), coupled to the detector, which causes the magnetron to be turned off when a level of the signal indicates the level of received microwaves exceeds a threshold.

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Rockville, MD, United States of America

Keith Andrew Helms