At&t Technologies, Inc.

Optical Coating Laboratory, Inc.

Joseph Sanchez

James D Rancourt

William T Beauchamp

Carroll D Spainhour

John R Nis

Ralph E Frazee, Jr

Robert P Stawicki

A structure that provides suppression of reflectance of radiation and thus enhanced emissivity is fabricated with a substrate that supports alternating absorber and spacer layers with interleaved antireflectance coatings formed of thin films of different materials having different indices of refraction. Alternate antireflectance coatings are mirror images of the prior deposited antireflectance coatings.

Article and coating having improved reflectance suppression

Insertion of a lightguide preform (12) into a tube (14) without contacting the sides thereof is accomplished by first roughly aligning the rod in spaced axial alignment with the tube. Thereafter, the offset of the rod from the axis of the tube is measured and the amount of lateral movement of the rod from the axis is determined. Then the rod is moved laterally in accordance with the determined amount of movement to precisely align the rod with the tube. Once alignment has been achieved, the rod is inserted in the tube and the tube is collapsed thereabout. An apparatus (10) for practicing this method is disclosed.

Method and apparatus for inserting a glass rod into a glass tube

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Santa Rosa, CA, United States of America

Joseph Sanchez