Number | Date | Country | Kind |
---|---|---|---|
106747 | Aug 1993 | ILX |
Number | Name | Date | Kind |
---|---|---|---|
2704009 | Haeseler | Mar 1955 | |
4173398 | Okamoto et al. | Nov 1979 | |
5064284 | Johnston, Jr. et al. | Nov 1991 | |
5069527 | Johnston, Jr. | Dec 1991 | |
5078491 | Johnston, Jr. | Jan 1992 |
Entry |
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International Oraganization for Standardization. "Optics and optical instruments Tests methods for laser beam parameters: Beam widths, divergence angle and beam progagation factor." Document ISO/TC 172/SC 9/WG 1N 56. 26 Nov. 1993. |