Lumitex, Inc.

David Larson

Brian Morgan Spahnie

David J Page

Gregg M Kloeppel

Peter W Broer

George A Mezei

Rick Lockwood

Joseph Lee Diamond

A backlit system comprises a base panel, a plurality of keys disposed on the base panel, a substantially planar light guide panel disposed between the base panel and the plurality of keys, at least one light source disposed on the light guide panel, and at least one light management feature disposed on the light guide panel. The at least one light management feature is configured to at least partially reflect incident light within the light guide panel.

Light guide and keyboard backlight

A method of marring a fiber optic substrate by supporting a length of the substrate on a tapered surface of an elongate support and causing relative movement between at least one roller and the support lengthwise of the support with the roller pressing the substrate against the tapered surface and the roller rolling along the substrate. At least one of the roller and the support include an abrasive surface for marring the substrate during such relative movement therebetween.

Methods and systems for marring fiber optic substrates

Methods and systems for marring fiber optic substrates may include rollers with abrasive surfaces that press lengths of the substrates against elongated supports, which may be tapered, during relative lengthwise movement between the rollers and supports; abrasive sheets that are vibrated against the substrates; abrasive flap wheels that are rotated to cause flexible abrasive flaps on the wheels to strike the substrates; rotating blades that cut a transverse marring pattern in the substrates; hammers having abrasive surfaces that are oscillated to strike the substrates; and water jet abrasive slurries that are directed at the substrates.

Illuminators include transparent light emitting members having a pattern of rounded shallow notches or grooves in one or more surfaces of the members for causing internally reflected light to be emitted from the members. The notches or grooves may be cut using a circular cutting tool. The relative speed of the cutting tool and feed rate of the cutting tool relative to the members may be controlled to produce a roughened surface on the notches or grooves.

Transparent light emitting members and method of manufacture

Fiber optic light panel assemblies include a panel member having one or more layers of individual optical fibers arranged in close proximity to each other. One or more of the optical fibers may be completely severed adjacent the light receiving end of the panel member to prevent any light entering the light receiving end from being transmitted through the severed optical fibers. At least some of the severed optical fibers may extend along one or more side edges of the panel member and/or intermediate the side edges. A slot may extend through an unlighted end of the panel member toward the light receiving end intermediate the side edges that sever a number of the optical fibers at the innermost end of the slot. The panel member may also be cut into a plurality of smaller width panel sections to provide gaps between the panel sections. One or both ends of the panel member (including any smaller width panel sections) and/or any severed ends of the optical fibers may be masked with a light absorbent material to absorb any light emitted therefrom.

Growing community of inventors

Huntington Beach, CA, United States of America

David Larson