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:
Apr. 13, 2010
Filed:
Jan. 30, 2006
Douglas Kreysar, Duvall, WA (US);
Matthew Lekson, Woodinville, WA (US);
Ronald F. Rykowski, Woodinville, WA (US);
Richard E. Albrecht, Chapel Hill, NC (US);
Douglas Kreysar, Duvall, WA (US);
Matthew Lekson, Woodinville, WA (US);
Ronald F. Rykowski, Woodinville, WA (US);
Richard E. Albrecht, Chapel Hill, NC (US);
Radiant Imaging, Inc., Duvall, WA (US);
Abstract
Rotary shutter assemblies for imaging photometers and methods for using such shutters are disclosed herein. In one embodiment, for example, a method for capturing an image with an imaging photometer can include positioning a rotary shutter having an aperture at a first position such that the shutter blocks light traveling along an optical axis from a light source being measured to an image sensor of the photometer. The method can include pivotably moving the shutter at a generally constant angular speed to a second position with the aperture aligned with the optical axis to expose at least a portion of the image sensor to the light for a first predetermined exposure time. After exposing each portion of the image sensor to the light for the first exposure time, the method can include pivotably moving the shutter at the angular speed to a third position such the aperture is not aligned the optical axis, and then pivotably moving the shutter from the third position back to the first position without rotating the shutter 360 degrees.