| Patent application number | Description | Published |
|---|
| 20090051873 | Eye Illumination Apparatus and Method - An ophthalmic apparatus adapted to project a waist of a beam of the light, such that a portion of the confocal region of the waist is projected onto the cornea. The source can be at least partially coherent and/or monochromatic. The source may be a laser or a laser diode. The beam can be a Gaussian beam, or a non-Gaussian beam. The apparatus can comprise a wavefront aberrometer, an axial eye length measuring apparatus or a refractometer. | 02-26-2009 |
| 20090096987 | Eye Measurement Apparatus and a Method of Using Same - An apparatus for measuring a subject's eye having an instrument axis, comprising an eye tracker apparatus comprising a first projector and a first camera, a slit projector rotatable about the instrument axis independent of the eye tracker apparatus, and a second camera rotatable about the instrument axis independent of the eye tracker. | 04-16-2009 |
| 20090147266 | Eye Length Measurement Apparatus - An interferometric axial eye length measurement apparatus having a light source adapted to produce a beam of partially coherent light, a first mirror and a second mirror disposed in the reference arm, and a processor adapted to control at least the second mirror such that a corneal interference peak and a second interference peak have a non-zero separation. There is at least one variable delay optical element having a delay signal, wherein the delay signal corresponding to a region between the corneal interference peak and second interference peak is substantially linear. | 06-11-2009 |
| 20090153738 | Aberrometer having reduced noise - Methods and apparatus for facilitating determination of centroids of image spots in an image containing an array of image spots generated by an aberrometer, the image comprising a first plurality of pixels each pixel having a corresponding intensity value, the method comprising calculating an average intensity value for a second plurality of pixels in a perimeter around a pixel, the average calculated using a subset of the second plurality exclusive of at least a portion of the pixels in the perimeter. | 06-18-2009 |
| 20090161068 | Ophthalmic Measurement Apparatus - An ophthalmic measurement apparatus having an instrument axis and comprising (A) a central housing comprising at least two reference surfaces and comprising a beam splitter, the instrument axis extending from the central housing, (B) a camera subsystem having a reference surface, the camera subsystem coupled to one of said reference surfaces such that the reference surface to which the subsystem is coupled and the camera subsystem reference surface together operatively align the camera with the instrument axis, and (C) an aberrometer subsystem having a reference surface, the aberrometer subsystem coupled to one of said reference surfaces such that the reference surface to which the aberrometer subsystem is coupled and the reference surface of the aberrometer subsystem together operatively align the aberrometer subsystem with the instrument axis. | 06-25-2009 |
