Directional array sensing module
US9442292B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2014 |
| Grant date | Sep 13, 2016 |
| Priority date | — |
| Expiry date | Feb 22, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/013
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Embodiments describe an eye sensing module to detect eye movements and gestures. The eye sensing module is included in a head wearable display, and may be placed anywhere within the head wearable display so that the image sensor device has a line-of-sight to the user's eye. The eye sensing module comprises an image sensor, an array of focusing lenses disposed over the image sensor placed side-by-side (i.e., not on top of one another), and a corresponding array of directional prisms disposed over the focusing lenses. The directional prisms and the focusing lenses increase the field of view of the image sensor to enable the image sensor to capture eye gestures and eye movements for different user eye sizes, eye locations, and other varying eye characteristics. These eye sensing modules increase the field of view of the image sensor without increasing the size of image sensor or focusing lenses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.