Eyeglass lens with multiple optical zones having varying optical properties for enhanced visualization of different scenes in outdoor recreational activities
US6250759A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1999 |
| Grant date | Jun 26, 2001 |
| Priority date | — |
| Expiry date | Dec 22, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens for eyeglasses is provided with two or more optical zones on the lens body having different optical properties that enhance visualization of different scenes, including target objects within the scenes, that are associated with a specific recreational activity such as golf, hunting, or fishing. A first optical zone in an upper portion of the lens can be provided with pre-defined focus distance, transmission percentage, and/or transmission spectrum parameters for enhanced visualization of distant scenes associated with the specific recreational activity. A second optical zone in a lower portion of the lens can be provided with different pre-defined focus distance, transmission percentage, and/or transmission spectrum parameters for enhanced visualization of close-in scenes associated with the specific recreational activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.