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. 22, 1987
Filed:
Sep. 24, 1985
Boehringer Mannheim GmbH, Mannaheim, DE;
Abstract
A relative position detector has a photodetector arrangement for providing light and responding to the intensity of the light when reflected thereto. A member such as a cylindrical pin having a surface reflective of the light, convex to the photodetector arrangement, and movable relative thereto reflectively sweeps the light across the photodetector arrangement for responding thereto to produce a continuously-curving response indicating with its peak the position detected. The continuously-curving response can be differentiated in a peak detector for even more precise position detection. A mount which may be used for the photodetector arrangement has a support member and a member having a lower coefficient of thermal expansion slidably supported thereon, except for one fixed point.