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.:

US 8098381 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 17, 2012

Filed:

Oct. 29, 2007
Applicants:

Edward Charles Gage, Mars, PA (US);

Duane Clifford Karns, Pittsburgh, PA (US);

Amit Vasant Itagi, Pittsburgh, PA (US);

Dorothea Buechel, Pittsburgh, PA (US);

Inventors:

Edward Charles Gage, Mars, PA (US);

Duane Clifford Karns, Pittsburgh, PA (US);

Amit Vasant Itagi, Pittsburgh, PA (US);

Dorothea Buechel, Pittsburgh, PA (US);

Assignee:

Seagate Technology LLC, Scotts Valley, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01B 11/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

An apparatus for measuring a distance such as, for example, a fly height distance. An apparatus includes a slider having an air bearing surface and an optical condenser assembly spaced apart from the air bearing surface of the slider. The optical condenser assembly includes an optical cap and an optical substrate having a first surface and a second surface. The first surface is spaced apart from the optical cap and the second surface is spaced apart from the air bearing surface of the slider.


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