System and method for fast retinal imaging

摘要

An optical system and measurement method for imaging three-dimensional objects with low light scatter comprising at least one source of radiation; a radiation projection means for creating a set of foci through a volume of an object; and a means for imaging the returned light from the set of foci on at least one camera, wherein the imaging of the volume of the object is at a different angle from the projection, allowing for detection of the returned light on separate camera pixels. The measurement method further comprises projecting a longitudinal grid of elongated foci through the volume of an object; imaging returned light from the object at a different angle on at least one camera, so as to avoid overlapping the elongated images; and analyzing the imaged, returned light to yield depth information of the object at a multiplicity of points.

主权项

1. A measurement method comprising the steps of:
projecting, using at least one radiation source, a plurality of parallel, narrow entering light beams distinct in space onto an object, thereby generating a longitudinal grid of elongated foci on said object through its volume; imaging returned light from said object at a different angle than an entry angle of said narrow entering light beams on at least one camera, so as to avoid overlapping and interfering with said elongated foci formed on said at least one camera; and analyzing said imaged, returned light to yield depth information of said object at a multiplicity of points, wherein said analysis yields polarization and ellipsometric information of said object at said multiplicity of points.