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.

Date of Patent:
May. 28, 2019

Filed:

Feb. 09, 2018
Applicant:

Grace Engineering Corp., Memphis, MI (US);

Inventor:

Louis Grace, Jr., North Street, MI (US);

Assignee:

Grace Engineering Corp., Memphis, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F41G 1/35 (2006.01); F41G 1/34 (2006.01); F41G 1/467 (2006.01); F41B 5/14 (2006.01); F41C 23/16 (2006.01); H01L 35/18 (2006.01); H01L 35/30 (2006.01); H01L 35/32 (2006.01);
U.S. Cl.
CPC ...
F41G 1/345 (2013.01); F41B 5/1403 (2013.01); F41C 23/16 (2013.01); F41G 1/467 (2013.01); H01L 35/18 (2013.01); H01L 35/30 (2013.01); H01L 35/32 (2013.01);
Abstract

A range finder for determining a distance to a target object includes a thermoelectric module and a range finding unit. The range finding unit includes a light source for emitting light onto a target object, a light receiving unit configured to receive light reflected by the target object, a distance calculation unit for calculating the distance to the target object based on the reflected light, and a display unit for displaying the calculated distance to the target object. The thermoelectric module generates electricity from a thermal gradient, produced from a user's body heat that is transferred to the module. The electricity power generated by the thermoelectric module powers the components of the range finding unit. Related methods are also provided.


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