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:
Apr. 02, 1991
Filed:
Jun. 02, 1989
Yoshikazu Kakinoki, Machida, JP;
Masato Nakashima, Yokohama, JP;
Tetsuo Koezuka, Hachioji, JP;
Noriyuki Hiraoka, Kawasaki, JP;
Hiroyuki Tsukahara, Atsugi, JP;
Yoshinori Suto, Kawasaki, JP;
Yoshitaka Oshima, Atsugi, JP;
Shinji Hashinami, Atsugi, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An optical system for detecting the shape of a three-dimensional object comprising a collimating lens for converting a laser beam to a parallel beam of light, a scanning optical system which moves the parallel beam incident on the object in a direction normal to the object thereby to scan the object with a scanning beam, a mirror which is located in the vicinity of the scanning beam at a predetermined inclination angle with respect to the object, to reflect the beam reflected by the object in a predetermined direction as a reflection beam, an image forming lens which converges the reflection beam to a point and thereby producing an image of the object, and a first optical detector located at the point at which the reflection beam is converged to detect the converged beam spot.