发明名称 |
Method and apparatus for a fringe direct writing system |
摘要 |
A structure and method of operation of a fringe direct writing system to produce a hologram or the like. The apparatus is roughly classified into four parts: an illumination part; an image display and optical imaging part; an optically autofocusing part; and a two dimensional moveable stage part. The method of operation directly images a pattern, which is previously calculated by computer and displayed on the LCD panel, onto a recording material. This method affords the possibility to write a fringe pattern in a large region within a short period of time.
|
申请公布号 |
US6268893(B1) |
申请公布日期 |
2001.07.31 |
申请号 |
US19970815081 |
申请日期 |
1997.03.11 |
申请人 |
AMERICAN BANK NOTE HOLOGRAPHICS |
发明人 |
O'BOYLE LILY;KANG DER-KUAM |
分类号 |
G03H1/08;(IPC1-7):G02F1/133;G02F1/133 |
主分类号 |
G03H1/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|