Number | Name | Date | Kind |
---|---|---|---|
2049765 | Fischer | Aug 1936 | |
2219895 | Hanlein | Oct 1940 | |
2662035 | Levi | Dec 1953 | |
2662036 | Levi | Dec 1953 | |
2971853 | Stookey | Feb 1961 | |
3020238 | Munakata et al. | Feb 1962 | |
3208860 | Armistead et al. | Sep 1965 | |
3225138 | Montani | Dec 1965 | |
3454778 | Eisner | Jul 1969 | |
3459889 | Michels et al. | Aug 1969 | |
3756692 | Scott | Sep 1973 | |
4168512 | Ito et al. | Sep 1979 | |
4169655 | Jacobsson | Oct 1979 | |
4272164 | Trussell, Jr. | Jun 1981 | |
4730096 | Mizumoto | Mar 1988 | |
4868649 | Gaudin | Sep 1989 | |
4918517 | Burgoon | Apr 1990 | |
4978208 | Hsu et al. | Dec 1990 |
Number | Date | Country |
---|---|---|
53-78721 | Jul 1978 | JPX |
Entry |
---|
Megla, "Optical Properties and Applications of Photochromic Glass" vol. 5, No. 6, Applied Optics Jun. 1966, pp. 945-960. |