Method of producing stable holograms in dichromatic gelatin
US4826290A · kind A · utility
12Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1987 |
| Grant date | May 2, 1989 |
| Priority date | — |
| Expiry date | Sep 21, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S359/90
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of developing a holographically recorded interference pattern in a dichromatic gelatin structure is provided. The process includes developing the hologram pattern by hydration and dehydration, baking the developed hologram pattern at a temperature equal or above 120.degree. C. for approximately 24 hours, rehydrating the developed hologram and dehydrating the developed hologram at a temperature of approximately 60.degree. C. for approximately 48 hours until the design wavelength response is attained to provide a stabilized hologram.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.