| 发明名称 |
Laser beam optical focusing system of two symmetrical diffractive optical elements |
| 摘要 |
A laser beam optical focusing system consists of two symmetrical diffractive optical elements. The optical system has a spot size of less than one micron and a Strehl ratio of over 0.9 with a f/number of one and a total object/image field of either 0.5 or 1 micron.
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| 申请公布号 |
US5907435(A) |
申请公布日期 |
1999.05.25 |
| 申请号 |
US19970882762 |
申请日期 |
1997.06.26 |
| 申请人 |
XEROX CORPORATION |
发明人 |
ANG, ANTHONY |
| 分类号 |
G02B5/18;(IPC1-7):G02B27/44 |
主分类号 |
G02B5/18 |
| 代理机构 |
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