Lockheed Martin Corporation

Walter V Werner

George Hanna Ghanime

Wit Bushko

Earl W Stromberg

Kerry D Laviolette

Park E Hays

A plurality of connecting elements projects from a body's surface. A plurality of indents is defined in the body's surface. Each stem element includes first and second stalks projecting orthogonally from the surface. The first stub includes a pyramidical cap section and at least one generally planar wall. The second stalk is generally parallel to the first stub and spaced apart from the at least one wall, defining a gap therebetween. The second stalk includes a stem projecting from the surface. A lip section extends from a distal end of the stem and protrudes outwardly relative to the stem. An engagement section extends from the lip section. A free end of the engagement section defines a distal end of the second stalk. An outer surface of the engagement section defines a first gradient tapering from the lip section to the distal end of the second stalk.

Multiple stem design for high density interconnects

A plurality of connecting elements projects from a surface of an article. Each connecting element includes a first stalk and second hollow stalk projecting from the surface. The second stalk is generally coaxial with the first stalk and spaced apart from the first stalk defining a radial gap therebetween. The first stalk includes a cap section. The second stalk includes a stem projecting generally orthogonally, at a proximal end thereof, from the surface. A flange section having a first wall thickness extends from a distal end of the stem and has an outer diameter greater than an outer diameter of the stem at the distal end. An engagement section extends from the flange section. A free end of the engagement section having a second wall thickness defines a distal end of the second stalk and has an outer diameter less than the outer diameter of the flange section.

Connecting elements having a stub surrounded by a hollow stalk with a flange

An article includes a plurality of stems projecting from a surface thereof. Each stem includes a hollow stalk projecting orthogonally from the surface and a hollow head defined on a distal end of the hollow stalk. The head includes a flange section extending from the distal end of the hollow stalk and having an outer diameter greater than an outer diameter of the hollow stalk at the distal end. A cap section extends from the flange section, defines a distal end of the stem and has a generally convex contour. The cap section has a first wall thickness at the distal end of the stem, a second wall thickness at a junction of the cap section and the flange section and a third wall thickness at a circumferential section intermediate the distal end and the flange section. The third wall thickness is less than the first and second wall thicknesses.

Hollow stem design for high density interconnects

A measurement method and apparatus rely upon the coherent optical interference between a reference beam and a diffractionless sensing beam having an optical path length that has been disturbed. The interference pattern can be analyzed to determine a measurement parameter of the disturbance. The diffractionless beam is particularly a Bessel beam. Exemplary optical interferometer types including Mach-Zehnder, Michelson, Sagnac and Fabry-Perot include a Bessel beam generator to generate a diffractionless beam as the sensing optical beam and in some aspects the reference optical beam of the interferometer. The sensing optical beam propagates along a sensing optical beam path in free-space. The reference optical beam path may be a free-space medium or a material medium such as an optical fiber. The sensing optical beam path is subject to a disturbance manifested by the optical interference pattern between the sensing optical beam and the reference optical beam. Parameters of the disturbance, such as motion, acoustics, environmental conditions and others can be determined by analysis of the interference pattern.

Bessel beam interferometer and measurement method

A method for mitigating modal dispersion in a multimode optical fiber involves launching a diffractionless optical beam, such as a Bessel beam, into a multimode optical fiber. A fiber optical transmission system includes a multimode optical fiber transmission medium having an input end and an output end, an optical signal transmitter in communication with the input end of the multimode optical fiber medium, means for converting the optical signal into a diffractionless optical signal, means for launching the diffractionless optical signal in the input end of the multimode optical fiber transmission medium, means for outputting the propagated optical signal from an output end of the multimode fiber transmission medium, and a receiver that receives the optical signal from the output means. Fiber optic communication systems employing the invention embodiments include point-to-point transmission links, local area networks and WDM systems including coarse wavelength division multiplexing and dense wavelength division multiplexing systems.

Growing community of inventors

Pittsford, NY, United States of America

Walter V Werner