Number | Name | Date | Kind |
---|---|---|---|
4937715 | O'Shea et al. | Jun 1990 | |
5021811 | Maurinus et al. | Jun 1991 | |
5160192 | Sugawara | Nov 1992 | |
5329330 | Sakai et al. | Jul 1994 | |
5615394 | Albrecht | Mar 1997 |
Entry |
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William B. Elmer, The Optical Design of Reflectors, (Geometric Foundations of Reflector Design) pp. 42-48 & Chapter 10 pp. 142-186 Third Edition. |