Confluent Photonics Corporation

Dimensional Photonics International, Inc.

William John Hubbard

Thomas A Schaefer

Andrew J Radl

Kevin J McIntyre

Gary J Swanson

Lyle G Shirley

Brian James McKeen

Gregory G Cappiello

Robert C Abbe

Ninghui Zhu

Dick Rolfe

Kurt E Abdelmaseh

Evgueni V Babenko

Paul Ouellette

Ian C Prees

The present invention provides a method and apparatus for reducing error in interferometric fringe stability and reproducibility in an interference fringe generator. In one aspect, the method for reducing error in interferometric fringe stability and reproducibility includes providing a light source, positioning a grating to receive light from the light source and positioning a projection lens having a focal length F to receive light from the grating. The projection lens projects the received light upon an object of interest positioned substantially at a distance dfrom the lens. Typically the lens is positioned substantially at a distance dfrom the grating. The values of d, d, and F are related by dbeing approximately equal to dF/(d&#x2212;F).

Methods and apparatus for reducing error in interferometric imaging measurements

An opto-mechanical platform for supporting truncated optical elements having at least one substantially flat side surface is disclosed. In one particular exemplary embodiment, the opto-mechanical platform may be realized as an apparatus for supporting truncated optical elements having at least one substantially flat side surface. Such an apparatus may comprise a platform having a substantially flat surface area for supporting the substantially flat side surface of the truncated optical elements. Such an apparatus may also comprise at least one substantially vertical wall formed on at least a portion of the platform for providing mechanical rigidity to the platform.

Opto-mechanical platform

A technique for attaching an optical element to a structural element is disclosed. In one particular exemplary embodiment, the technique may be realized as an apparatus for attaching an optical element to a structural element. Such an apparatus may comprise an optical element formed of a material having a first coefficient of thermal expansion value, a structural element formed of a material having a second coefficient of thermal expansion value, and an intermediate element formed of a material having a third coefficient of thermal expansion value that is between the first coefficient of thermal expansion value and the second coefficient of thermal expansion value. The intermediate element is disposed between the optical element and the structural element such that thermal stress between the optical element and the structural element are transferred to the intermediate element.

Optical element mounting technique

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Litchfield, NH, United States of America

William John Hubbard