Eastman-kodak Company

John K Erickson

Jeffrey R Stoneham

Steven D Daniels

Dennis R Zander

Joel S Lawther

Paul L Taillie

An electromagnetic actuator includes a core made of a soft magnetic material, a permanent magnet located between a pair of ends of the core, the permanent magnet being supported for movement, and an electrically conductive coil wrapped about a portion of the core. The reluctance of the core is adjustable to alter movement of the permanent magnet as a function of time upon application of electrical current to the coil of the electromagnetic actuator.

Core made of a soft magnetic material for use in an electromagnetic

A camera comprising a door with an exterior viewing opening for viewing readable information appearing on a photographic article such as a film cartridge in the camera, and an interior light-trapping gasket that surrounds the viewing opening to confine ambient light entering the viewing opening when the door is closed, is characterized in that the viewing opening is extended along the door to hold a label at a particular portion of the viewing opening that does not interfere with ambient light entering the viewing opening to view the information.

Camera with viewing opening extended to hold label

Improved light reflector apparatus for use in an electronic flash unit or the like is formed by an injection molding operation, which causes both precise shaping of a reflector and accurate mounting of the reflector securely within a housing. A light-reflecting flexible sheet is placed in a mold so that its light-reflecting front surface is centrally positioned adjacent a mold forming surface. The forming surface, which is larger than the sheet, has a contour adapted for shaping the sheet to reflect light into a beam of illumination. Liquid plastic is injected into the mold under pressure against the opposite surface of the sheet, thus pressing its light-reflecting surface into intimate contact against the forming surface. Because the sheet is smaller, the border of the forming surface is not covered by the sheet. Plastic flows beyond outer edges of the sheet against the uncovered border of the forming surface. The intimate contact between the forming surface and the sheet blocks plastic from leaking therebetween onto the light-reflecting surface. The plastic solidifies to form a housing having a supporting body underlying the sheet and a shoulder, integral with the supporting body and contiguous with and surrounding outer edges of the sheet. The shoulder traps the sheet against the underlying supporting body for maintaining the contour of the sheet caused by the molding surface.

Growing community of inventors

Victor, NY, United States of America

John K Erickson