Patent ID: 7959290

Claim:
A scanning ophthalmoscope for scanning the retina of an eye comprising: a source of collimated light; a first scanning element; a second scanning element; a scan compensation device; wherein the first scanning element produces a one-dimensional collimated light scan in a first direction; wherein the scan compensation device delivers the one-dimensional collimated light scan from the first scanning element onto the second scanning element in such a manner that the scan in the first direction appears to be provided from an apparent point source; and wherein the second scanning element produces from the one-dimensional collimated light scan a two-dimensional collimated light scan by scanning in a second direction from the apparent point source; wherein the scanning ophthalmoscope further comprises a scan transfer device, wherein the scan transfer device has two foci and the apparent point source is provided at a first focus of the scan transfer device and an eye is accommodated at a second focus of the scan transfer device, and wherein the scan transfer device transfers the two-dimensional collimated light scan from the apparent point source into the eye, wherein the rotational axis of the second scanning element is substantially parallel to a line joining the two foci of the scan transfer device, and wherein the line joining the two foci of the scan transfer device lies substantially on a plane defined by the one-dimensional collimated light scan produced by the scan compensation device.