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:
Mar. 29, 2022

Filed:

Mar. 22, 2021
Applicant:

Suntracker Technologies Ltd., Victoria, CA;

Inventor:

Ian Edward Ashdown, West Vancouver, CA;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 3/02 (2006.01); G01J 3/28 (2006.01); G06F 30/13 (2020.01); H04N 5/232 (2006.01);
U.S. Cl.
CPC ...
G01J 3/28 (2013.01); G01J 3/0297 (2013.01); G06F 30/13 (2020.01); H04N 5/23238 (2013.01);
Abstract

Melanopic dose rate and dose are calculated in a virtual environment. A computer generated model of an actual or planned building is used as the virtual environment. Indirect and direct spherical irradiances are calculated using convex polyhedra throughout the virtual environment, and each is multiplied by a melanopic conversion factor. The two are added, then adjusted for a human's angular responsivity and age. Building design features or lighting devices may be adjusted to provide a required melanopic dose rate. A camera is used to capture a panoramic image, which is calibrated to tristimulus values, and used with the spectral power distribution of the light sources to derive the melanopic dose rate.


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