Method and device for calibrating an optical wavefront system

Details Method and device for calibrating an optical wavefront system Method and device for calibrating an optical wavefront system

2007-05-08

2007-05-08

Lester, Evelyn A. (Department: 2873)

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

C351S205000, C351S246000

Reexamination Certificate

active

10364973

ABSTRACT:
The present invention provides methods and devices for calibrating an optical wavefront system. The calibration devices of the present invention can include a body which has a proximal portion and a distal portion. A pupil can be positioned on the proximal portion of the body to aperture light. A target can be positioned on the distal portion of the body so as to reflect light back through the pupil and into the wavefront system. If the device has a lens assembly or a phase plate, the reflected light can pick up known aberrations or defocus characteristics from the lens assembly before it enters the calibration device. The known wavefront characteristic can be compared to the wavefront measurement obtained by the wavefront system to aid in calibrating the wavefront system.

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