Number | Date | Country | Kind |
---|---|---|---|
3937599 | Nov 1989 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
4102576 | Maeda et al. | Jul 1978 | |
4468121 | Koizumi et al. | Aug 1984 | |
4697924 | Akiyama | Oct 1987 | |
4981357 | Minakawa et al. | Jan 1991 |
Number | Date | Country |
---|---|---|
0183415 | Jun 1986 | EPX |
161534 | Oct 1982 | JPX |
Entry |
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"Journal Physics E/Scientific Instruments", Aug. 1988, pp. 798-804. |
V. Mazzacurati et al.: "A New Class of Multiple Dispersion Grating Spectrometers". |
"Patent Abstracts of Japan" vol. 4, No. 14 (E-114)(169) 31, Jan. 31, 1980. |
"Double Spectroscope", Hitachi Seisakusho K.K., Dec. 5, 1979. |