Patent ID: 8616702
Filing Date: 2013-12-31
Classification: A61B

Abstract:
1. An apparatus for examining an eye, comprising: a first light source, wherein the first light source is a laser light source; a second light source, wherein the second light source is a Light Emitting Diode (LED) light source; a light source selection switch, coupled to the first light source and the second light source, configured to select either the first light source or the second light source to illuminate an eye, wherein the first light source or the second light source becomes a selected light source upon selection; a holographic diffuser configured to receive light from the selected light source and to shape the light into a Maxwellian ring based on a diffraction pattern of the holographic diffuser; and an imaging lens coupled with a hole mirror, wherein the imaging lens and the hole mirror are configured to receive the Maxwellian ring and to image the Maxwellian ring onto the eye.