Special lens for eyeglasses
US4915495A · kind A · utility
16Cited by
3References
5Claims
0Family size
Inventor
Key dates
| Filing date | Jul 5, 1988 |
| Grant date | Apr 10, 1990 |
| Priority date | — |
| Expiry date | Jul 5, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides a method of producing a special lens by bonding a polarizing film to an eyeglass lens on the basis of the angle corresponding to the distortion of eyeball, that is, the distorted vision angle measured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.