OPTICAL ARRANGEMENT AND METHOD FOR ASCERTAINING THE ORIENTATION OF AN ARTIFICIAL LENS

摘要

An optical arrangement for ascertaining the orientation of an artificial lens in an eye comprises an observation beam path with an imaging optical system, at least two light-emitting test objects with a defined contour, and one collimation optical system paired with each test object for collimating the light pattern emanating from the test object in a collimation beam path that is directed at the eye. The imaging optical system is designed such that said optical system has multiple observation beam paths with different imaging properties in order to simultaneously image multiple reflected light patterns from different depths of the eye, or the imaging properties of the observation beam paths can be adjusted in a variable manner in order to be able to sharply image sequentially reflected light patterns from different depths.

主权项

1. An optical arrangement for determining orientation of an artificial lens in an eye having a cornea with a front side, the optical arrangement comprising at least one observation beam path with an imaging optical system, at least two light-emitting test objects that each have a defined contour, and one collimation optical system per test object for collimating a light pattern emanatable from the test object into a collimation beam path that is directable at the eye, wherein
a) the at least one observation beam path comprises multiple observation beam paths with different imaging properties, which multiple observation beam paths are all directable toward a common ocular and which are adjustable such that light patterns reflectable by different boundary surfaces selected among the front side of the cornea and boundaries between the artificial lens and optical media of the eye are able to be simultaneously imaged, or b) the at least one observation beam path comprises only a single observation beam path that is adjustable in its imaging properties such that light patterns reflectable by different boundary surfaces selected among the front side of the cornea and boundaries between the artificial lens and optical media of the eye are able to be imaged sequentially.