Number | Name | Date | Kind |
---|---|---|---|
3614448 | DiPros et al. | Oct 1971 | |
3696344 | Feinleib et al. | Oct 1972 | |
3983317 | Glorioso | Sep 1976 | |
4097895 | Spong | Jun 1978 | |
4125859 | Oshida et al. | Nov 1978 | |
4275275 | Bricot et al. | Jun 1981 | |
4298974 | Tsunoda et al. | Nov 1981 | |
4459690 | Corsover et al. | Jul 1984 | |
4520472 | Reno | May 1985 | |
4689780 | Ohara et al. | Aug 1987 |
Number | Date | Country |
---|---|---|
57-83347 | May 1983 | JPX |
Entry |
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Wai-Hon Lee, High Efficiency Multiple Beam Gratings from Applied Optics, Jul. 1, 1979, pp. 2152-2158. |