The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 01, 1997
Filed:
Jan. 22, 1996
Kazumasa Oishi, Yokohama, JP;
Atsushi Suzuki, Yokohama, JP;
Nobuhiro Akasaka, Yokohama, JP;
Yasuo Matsuda, Yokohama, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
A physical property evaluation method for optical fiber coating which is easy in producing a sample and high in accuracy and which is capable of measuring the shear modulus or tensile modulus with high accuracy, and a coated optical fiber with good lateral pressure characteristics using this evaluation method. The method comprises a step of producing a sample with the both end faces being parallel by cutting a coated optical fiber by a plane normal to the direction of the center axis of an optically transparent member, a step of holding the sample by securing the second coating layer, a step of pushing only the optically transparent member to impose a load thereon, thereby giving displacement to the optically transparent member and causing shear elastic deformation to the first coating layer, and a step of calculating the shear modulus or tensile modulus of a material forming the first coating layer, based on an amount of the displacement of the optically transparent member and a value of the load imposed thereon.