Method and apparatus for direct projection of an image onto a human retina
US6454411B1 · kind B1 · utility
24Cited by
3References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 17, 1999 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Nov 17, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/14
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus for directly projecting an image onto a retina includes an optical source for generating a light beam to be focused on a retina. A projection device sweeps the light beam along the retina in an ellipsoidal pattern such that a higher spatial concentration of light pixels impinge a central portion of the retina than a peripheral portion thereof. A controller is coupled to the optical source and the projection device for modulating the light beam such that a higher temporal concentration of light pixels impinge a central portion of the retina than a peripheral portion thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.