US 12,201,365 B2
Alignment improvements for ophthalmic diagnostic systems
Alexandre R. Tumlinson, San Leandro, CA (US); Keith O'Hara, Pleasanton, CA (US); and Angelo Rago, Lafayette, CA (US)
Assigned to Carl Zeiss Meditec, Inc., Dublin, CA (US); and Carl Zeiss Meditec AG, Jena (DE)
Filed by Carl Zeiss Meditec, Inc., Dublin, CA (US); and Carl Zeiss Meditec AG, Jena (DE)
Filed on Apr. 28, 2023, as Appl. No. 18/141,140.
Application 17/082,714 is a division of application No. 15/749,723, granted, now 10,849,498, previously published as PCT/EP2016/069098, filed on Aug. 11, 2016.
Application 18/141,140 is a continuation of application No. 17/082,714, filed on Oct. 28, 2020, granted, now 11,672,421.
Claims priority of provisional application 62/204,317, filed on Aug. 12, 2015.
Prior Publication US 2023/0255480 A1, Aug. 17, 2023
Int. Cl. A61B 3/15 (2006.01); A61B 3/10 (2006.01); A61B 3/12 (2006.01); A61B 5/00 (2006.01)
CPC A61B 3/152 (2013.01) [A61B 3/102 (2013.01); A61B 3/1025 (2013.01); A61B 3/12 (2013.01); A61B 5/7415 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A device for imaging a retina of a subject's eye, the device comprising:
an illumination source for illuminating the subject's eye;
an illumination path from the illumination source to the subject's eye,
the illumination path having an illumination aperture;
a collection path for light reflected from the subject's eye to a detector,
the detector collecting light returning from the subject's eye and generating signals in response thereto,
the collection path having a collection aperture different from the illumination aperture;
optics for projecting a visual stimulus, through a projection aperture, the visual stimulus surrounding the illumination aperture and the collection aperture to the retina of the subject's eye,
the projected visual stimulus providing alignment information;
an alignment identifier for identifying an acceptable alignment; and
a processor for generating an image of the retina of the subject's eye, from select-signals generated by the detector, the select signals corresponding to light collected from the acceptable alignment;
wherein the visual stimulus includes a representation of an actual eye position of the subject's eye relative to an ideal alignment position indicator.