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:
Dec. 15, 2020
Filed:
May. 30, 2018
Idex Health & Science Llc—delaware, Rochester, NY (US);
Stanley W. Stephenson, Spencerport, NY (US);
IDEX Health & Science, LLC, Rochester, NY (US);
Abstract
An optical shutter apparatus for controllably blocking an aperture, the shutter apparatus having a rotary actuator configured to rotate a shaft about an axis from a closed-shutter angular position toward an open-shutter angular position and a shutter blade coupled to the shaft and extending along a plane that is in parallel with the axis of rotation, wherein a surface of the shutter blade is reflective. There is a ferromagnetic collar coupled to the shaft and having a protruding portion extending orthogonally from the shaft with respect to the axis. A stationary magnet is disposed to attract the protruding portion of the collar and urge the shaft toward the closed-shutter angular position.