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.:

US 7339655 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 04, 2008

Filed:

Oct. 19, 2005
Applicants:

Yutaka Nakamura, Ashigarakami-gun, JP;

Hayami Kikawa, Ashigarakami-gun, JP;

Inventors:

Yutaka Nakamura, Ashigarakami-gun, JP;

Hayami Kikawa, Ashigarakami-gun, JP;

Assignee:

Sokkia Co., Ltd., Atsugi-shi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C 3/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

It is an object of the present invention to provide an electric optical distance wavelength meter detecting the time when the switching is completed and shortening the time required for distance measurement by immediately starting the distance measurement when measurement light and reference light are switched by a light path switching device. An electric optical distance wavelength meter includes a light emitting element for emitting measurement light toward a target placed on a measurement point; a light receiving element for receiving the measurement light coming back after reflecting on the target; a CPU for calculating the distance to the target or the object based on light receiving signals from the light receiving element; and a light path switching device for switching the measurement light so that the measurement light passes through an internal light path from the light emitting element to the light receiving element.


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Nakamura, Yutaka. (2008). Electric optical distance wavelength meter (U.S. Patent No. 7339655). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7339655

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