LARGE OPTICS COMPENSATED IMAGING SYSTEMS
Assignee
NORTHROP GRUMMAN SPACE & MISSION SYSTEMS CORP.
Filed
Apr 15, 1993
Granted
Mar 23, 1999
Location
HERMOSA BEACH CA US
Abstract
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.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Sep 28, 1994
Rescinded
Jul 24, 1998
Duration
3 years, 10 months
Inventor
- 1ROBERT APRAHAMIAN
Technology Domains
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Record Details
- Patent number
- US 5886800
- Application
- 08047863
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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