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:
Jul. 15, 2014
Filed:
Nov. 07, 2012
Applicant:
Asia Optical International Ltd., Tortola, GB;
Inventors:
Chen-Yeh Lin, Taichung, TW;
Chia-Chi Tang, Taichung, TW;
Assignee:
Asia Optical International Ltd., Tortola, VG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 3/32 (2006.01); F41G 1/38 (2006.01);
U.S. Cl.
CPC ...
G01C 3/32 (2013.01); F41G 1/38 (2013.01);
Abstract
A range finder adapted for finding the object distance of a subject having a specific height includes a shell unit, an objective lens assembly, a magnifying unit having multiple selectable magnification ratios, and a range finding unit. The range finding unit includes a scale, a pointer, and a mark. The object distance of the subject is known by comparing the scale and the pointer in an imaging plane when an end of an image of the specific height of the subject formed on the imaging plane is aligned with the mark.