Number | Name | Date | Kind |
---|---|---|---|
3712701 | Johnston et al. | Jan 1973 | |
3800180 | De Fraeye et al. | Mar 1974 | |
4629935 | Keenan | Dec 1986 | |
4629936 | Weld et al. | Dec 1986 | |
4727286 | Keenan et al. | Feb 1988 | |
4748376 | Weld et al. | May 1988 |
Entry |
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"Designers Handbook, Light Source Applications" by J. F. Waymouth et al., GTE Products Corp., 12/1980, pp. 15 and 16. |