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:
Jul. 22, 2014
Filed:
Apr. 22, 2011
Vitor Pamplona, Somerville, MA (US);
Manuel Menezes DE Oliveira Neto, Porto Alegre, BR;
Ankit Mohan, San Mateo, CA (US);
Ramesh Raskar, Cambridge, MA (US);
Vitor Pamplona, Somerville, MA (US);
Manuel Menezes de Oliveira Neto, Porto Alegre, BR;
Ankit Mohan, San Mateo, CA (US);
Ramesh Raskar, Cambridge, MA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
In exemplary implementations, this invention is a tool for subjective assessment of the visual acuity of a human eye. A microlens or pinhole array is placed over a high-resolution display. The eye is brought very near to the device. Patterns are displayed on the screen under some of the lenslets or pinholes. Using interactive software, a user causes the patterns that the eye sees to appear to be aligned. The software allows the user to move the apparent position of the patterns. This apparent motion is achieved by pre-warping the position and angle of the ray-bundles exiting the lenslet display. As the user aligns the apparent position of the patterns, the amount of pre-warping varies. The amount of pre-warping required in order for the user to see what appears to be a single, aligned pattern indicates the lens aberration of the eye.