Eyeglasses for personal and commercial use including reuse in 3D theater and other repeated operations
US9766479B2 · kind B2 · utility
9Cited by
17References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2012 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | Aug 26, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0178
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
3D glasses including features for an enhanced viewing experience with lower production and operating costs for theaters. Keyed lenses and removable temples facilitate assembly and field repairs. Specific angles of lens placement and the provision of specific anti-reflective areas on the frames enhance the quality of the optical path content being viewed. RFID and radio chips increase accountability and collection of use statistics. Smooth areas enhance cleaning and lower the time and material costs for between use cleanings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.