发明授权
- 专利标题: Large optics compensated imaging systems
- 专利标题(中): 大型光学补偿成像系统
-
申请号: US47863申请日: 1993-04-15
-
公开(公告)号: US5886800A公开(公告)日: 1999-03-23
- 发明人: Robert Aprahamian , George L. Clark , Lee O. Heflinger , Jesper Munch , Ralph Frederick Wuerker
- 申请人: Robert Aprahamian , George L. Clark , Lee O. Heflinger , Jesper Munch , Ralph Frederick Wuerker
- 申请人地址: CA Redondo Beach
- 专利权人: TRW Inc.
- 当前专利权人: TRW Inc.
- 当前专利权人地址: CA Redondo Beach
- 主分类号: G02B17/08
- IPC分类号: G02B17/08 ; G02B26/06 ; G02B5/32 ; G02B26/08
摘要:
A technique for correcting wavefront aberrations introduced by large primary optical elements in portions of the electromagnetic spectrum. The aberrations of the primary element are first transferred to a beacon beam and this aberrated beam is interfered with a reference beam in a holographic medium. These beams are then turned off and a beam from a distant object, containing the same aberrations, is allowed to diffract from the hologram. The diffracted beam from the hologram contains the image of the distant object with aberrations removed. Use of this technique permits the construction of large optical elements inexpensively, since surface tolerances of the elements can be substantially relaxed.
公开/授权文献
信息查询
IPC分类:
G | 物理 |
G02 | 光学 |
G02B | 光学元件、系统或仪器 |
G02B17/00 | 有或无折射元件的具有反射面的系统 |
G02B17/08 | .折反射系统 |