Light-conducting glass structures
US3941474A · kind A · utility
28Cited by
8References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 26, 1971 |
| Grant date | Mar 2, 1976 |
| Priority date | — |
| Expiry date | May 26, 1991 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12183
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
By heat treating a glass member containing at least one kind of cation to constitute a modifying oxide in contact with a source of another kind of cation to cause ion substitution, a light-conducting glass structure can be produced to have a refractive index distribution wherein the index varies progressively transversely to the intended light path, which is thereby bent toward the direction of increase of the index, such a light-conducting glass structure is not accompanied by differences or lagging of phase velocities of conducted light rays, spreading of the light flux width, and reflection losses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.