Patent ID: 9743831
Date: 2017-08-29
CPC Classifications: A61B,G02B

Claim:
1. An apparatus for imaging the retina of an eye comprising: a source of collimated light; a light detector; and a two-dimensional scanning device comprising a one-dimensional scanning element having a first axis of rotation and a rotatable mount having a second axis of rotation, and wherein the one-dimensional scanning element is mounted to the rotatable mount and the first and second axes of rotation are orthogonal and substantially co-planar; wherein the two-dimensional scanning device is arranged to receive collimated light from the source of collimated light and the source of collimated light and the two-dimensional scanning device combine in operation to provide a two-dimensional collimated light scan from a point source located at the intersection of the first and second axes; and the apparatus further comprises a scan transfer device, wherein the scan transfer device has a reflective surface, and wherein the reflective surface has a first focus point and a second focus point, and the point source is provided at the first focus point such that, in operation, the scan transfer device receives collimated light from the point source and transfers the two-dimensional collimated light scan from the point source into an eye accommodated at the second focus point, and the light detector detects light reflected from the retina of the eye to produce an image of the retina and wherein the axis of rotation of the one-dimensional scanning element is perpendicular or parallel to a line joining the first focus point and the second focus point of the scan transfer device and the axis of rotation of the rotatable mount is perpendicular or parallel to the line joining the first focus point and the second focus point of the scan transfer device.