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:
Sep. 26, 2006
Filed:
Nov. 06, 2002
Mitsuhiro Okazaki, Setagaya-ku, JP;
Mitsuhiro Okazaki, Setagaya-ku, JP;
Nikon Corporation, Tokyo, JP;
Abstract
A displacement detection device which detects a displacement of a movable member which is provided so as to be displaceable with respect to a fixed member, comprises: a scale that is provided as a unit with the movable member; a displacement detection section that detects a displacement of the scale; a support member that supports the displacement detection section in a state in which the displacement detection section is able to shift in a direction which is substantially perpendicular to a contact plane where the displacement detection section contacts with the scale at a contact position between the displacement detection section and the scale and in which shifting in a direction other than the direction substantially perpendicular to the contact plane is restricted; and a pressure application member that applies a pressure to the displacement detection section towards the scale.