Number | Date | Country | Kind |
---|---|---|---|
0004120 | Feb 2000 | GB |
Filing Document | Filing Date | Country | Kind |
---|---|---|---|
PCT/GB01/00771 | WO | 00 |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO01/63215 | 8/30/2001 | WO | A |
Number | Name | Date | Kind |
---|---|---|---|
4975571 | McMurtry et al. | Dec 1990 | A |
5033817 | Stephens | Jul 1991 | A |
5064290 | McMurtry et al. | Nov 1991 | A |
5184014 | Stephens et al. | Feb 1993 | A |
5302820 | Henshaw et al. | Apr 1994 | A |
5355220 | Kobayashi et al. | Oct 1994 | A |
5539519 | Takagi et al. | Jul 1996 | A |
5726442 | Henshaw | Mar 1998 | A |
5861953 | Henshaw | Jan 1999 | A |
Number | Date | Country |
---|---|---|
39 38 935 | May 1991 | DE |
42 26 683 | Feb 1993 | DE |
199 18 101 | Oct 2000 | DE |
0 207 121 | Jan 1987 | EP |
0 543 513 | May 1993 | EP |
0 577 090 | Jan 1994 | EP |
1 311 275 | Mar 1973 | GB |
1 474 049 | May 1977 | GB |
0 387 520 | May 1993 | GB |
WO 8905964 | Jun 1989 | WO |
WO 9618868 | Jun 1996 | WO |
Entry |
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“Optical Encoder Based On The Lau Effect” by Daniel Crespo et al., Society of Photo-Optical Instrumentation Engineers, Mar. 2000, pp. 817-824. |
“Analysis Of The Fresnal Field Of A Double Diffraction System In The Case Of Two Amplitude Diffraction Gratings Under Partially Coherent Illumination” by Artur Olszak et al., Society of Photo-Optical Instrumentation Engineers, Aug. 1997, pp. 2149-2157. |