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.:

US 8142018 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 27, 2012

Filed:

Aug. 04, 2009
Applicant:

Richard Spaide, New York, NY (US);

Inventor:

Richard Spaide, New York, NY (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 3/08 (2006.01); A61B 3/00 (2006.01); A61B 3/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

Imaging apparatus and filters are provided for accurately imaging, assessing and measuring a patient's macular pigment. A multi-band filter is employed in combination with a color digital fundus camera to provide a method that operates with a single imaging exposure. The multiband filter has bandpass regions within spectral ranges of the red, green and blue detectors of the CCD array employed within the fundus camera, the bandpass regions being sufficiently sharply defined so as to avoid regions where the CCD detector responses spectrally overlap. This provides three discrete channels of grayscale data corresponding to the bandpass regions of the multiband filter, which can be used to calculate macular pigment topographically. Methods are also disclosed for calculating the optical density of the macular pigment and advantageously displaying the resulting data.


Find Patent Forward Citations

Spaide, Richard. (2012). Reflectance measurement of macular pigment using multispectral imaging (U.S. Patent No. 8142018). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8142018

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