Image combining system for eyeglasses and face masks
US5886822A · kind A · utility
610Cited by
69References
114Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 18, 1997 |
| Grant date | Mar 23, 1999 |
| Priority date | — |
| Expiry date | Apr 18, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0178
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical system combines a first image formed by a main lens with a second image provided by an electronic display, slide, or other image source. The image combining system includes one or more inserts such as a set of reflecting image combiners to redirect light on an optical pathway within the main lens to the user's eye. The image combining system is highly compact, allowing the integration of a display system with eyeglasses or a face mask, such as a diver's mask. A number of implementations of the optical system make possible other types of image integration including uses in image acquisition systems such as cameras.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.