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:
Mar. 23, 2004
Filed:
Dec. 17, 2001
Kabushiki Kaisha TOPCON, Tokyo-to, JP;
Abstract
A measuring system comprises a light projecting unit for projecting a distance measuring light, a distance measuring optical unit for projecting the distance measuring light to an object to be measured and for receiving the reflected distance measuring light from the object to be measured, a photodetection unit for receiving the reflected distance measuring light from the distance measuring optical unit, and a distance measuring circuit for calculating a distance to the object to be measured based on a photodetection signal from the photodetection unit, wherein the light projecting unit comprises a mixing means for mixing the distance measuring light, and the distance measuring optical unit comprises an optical path switching means for switching over the distance measuring light to an outer optical path or to an inner reference optical path and for allowing the photodetection unit to receive the light, and a light amount adjusting means for adjusting a light amount of the distance measuring light received by the photodetection unit, wherein at least one of the mixing means, the optical switching means, and the light amount adjusting means comprises a hollow type motors and as a driving source, and a hollow of the motor is an optical path.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile