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:
Dec. 30, 1997
Filed:
Jun. 24, 1994
Fumio Ohtomo, Tokyo, JP;
Kunihiro Hayashi, Tokyo, JP;
Jun-ichi Kodaira, Tokyo, JP;
Hiroyuki Nishizawa, Tokyo, JP;
Kenichiro Yoshino, Tokyo, JP;
Kabushiki Kaisha Topcon, Tokyo, JP;
Abstract
An object reflector detecting apparatus for identifying an object reflector by emitting a light from a polarized light source toward the object reflector and then detecting a reflected light from the object reflector characterized in that the light emitted from said polarized light source is a polarized light of which direction of polarization is specially defined, the polarized lights between said reflected light and said emitted light are different in the direction of polarization, and said object reflector detecting apparatus is adapted to detect only a component of the direction of polarization from said object reflector.