US 10,376,141 B2
Fundus imaging system
Ynjiun Paul Wang, Cupertino, CA (US)
Assigned to Welch Allyn, Inc., Skaneateles Falls, NY (US)
Filed by Welch Allyn, Inc., Skaneateles Falls, NY (US)
Filed on Jan. 16, 2018, as Appl. No. 15/872,680.
Application 15/872,680 is a continuation of application No. 15/297,073, filed on Oct. 18, 2016, granted, now 9,918,629.
Application 15/297,073 is a continuation of application No. 14/939,601, filed on Nov. 12, 2015, granted, now 9,498,126, issued on Nov. 22, 2016.
Application 14/939,601 is a continuation of application No. 14/177,568, filed on Feb. 11, 2014, granted, now 9,211,064, issued on Dec. 15, 2015.
Prior Publication US 2018/0140188 A1, May 24, 2018
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 3/14 (2006.01); A61B 3/00 (2006.01); A61B 3/12 (2006.01); A61B 3/15 (2006.01)
CPC A61B 3/12 (2013.01) [A61B 3/0008 (2013.01); A61B 3/0025 (2013.01); A61B 3/14 (2013.01); A61B 3/152 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A non-mydriatic fundus imaging system, comprising:
an image sensor array capable of global reset operations, the global reset operations including exposing each pixel of a plurality of rows of pixels substantially simultaneously;
an illumination unit operatively coupled to the image sensor array, wherein the illumination unit includes a multi-die light emitting diode;
a timing unit operatively coupled to the image sensor array and the illumination unit and configured to simultaneously expose each pixel of the plurality of rows of pixels of the image sensor array during an exposure period;
a processor; and
memory storing instructions that, when executed by the processor, cause the non-mydriatic fundus imaging system to:
capture a plurality of images in a first image capture mode;
process at least a portion of the plurality of images to determine a position of a pupil of a subject; and
capture an image in a second image capture mode when the position of the pupil is substantially aligned with an optical axis of the non-mydriatic fundus imaging system;
wherein the first image capture mode comprises a first resolution and a first illumination condition;
wherein the second image capture mode comprises a second resolution and a second illumination condition;
wherein the second resolution is greater than or equal to the first resolution; and
wherein the second illumination condition is brighter than the first illumination condition.