The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 18, 2004
Filed:
Dec. 21, 2001
Ronald J. Martino, Geneva, NY (US);
David F. Prelewitz, Rochester, NY (US);
Kevin Kearney, Fairport, NY (US);
Bausch and Lomb, Inc., Rochester, NY (US);
Abstract
A wavefront-sensing device for measuring ocular aberrations includes, among other things, a retinal illumination component and a wavefront imaging component (e.g., a microlens array for a Shack-Hartmann wavefront sensor). The retinal illumination component includes a laser source and a fixed collimating lens. In one embodiment, an improved device has a beam path between the retinal illumination component and the patient's eye containing no refracting, diffracting, or phase altering components for focusing the illumination beam on the retina. In another embodiment, the retinal illumination component provides a beam having a diameter on the retina that is smaller than the diffraction limit of the wavefront imaging component over a refractive focus range of the patient's eye of between about −12D to +6D.