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| Number | Title | Issue Date |
| 6752502 | Parabolic membrane mirror having a shape-restorative force An optical quality, freestanding, compliant membrane mirror is cast with a concave parabolic shape, and includes a substrate and a reflective stress coating. The stress coating is in compression and applies a tensile shear stress to the substrate that opposes and of... | 06/22/2004 |
| 6533426 | Method of centrifugally casting a parabolic membrane mirror having a shape-restorative force A method for fabricating an optical quality, free-standing, compliant parabolic membrane mirror using an inverted parabolic mandrel created by rotating a liquid confined to a cylindrical polymer and applying a reflective optical stress coating once the su... | 03/18/2003 |
| 6332687 | Plunger controlled, near-parabolic optical membrane mirror A membrane mirror having an optical quality spherical shape maintained by differential pressure takes a near parabolic shape when a plunger-induced displacement of the central area of the mirror is introduced. The focal length can be adjusted by varying t... | 12/25/2001 |
| 6113242 | Active edge controlled optical quality membrane mirror A thin membrane is mounted on an optically flat circular outer ring and stretched over a smaller optically flat circular inner ring. Differential pressure is applied to the annulus formed between the inner and outer rings to prestrain the membrane and sep... | 09/05/2000 |
| 6107617 | Liquid crystal active optics correction for large space based optical systems Large space-based optical systems are expected to produce optical beams with large wavefront phase aberrations due to their size, weight limitations, optical misaligments and primary mirror imperfections. The present invention combines a phase diversity w... | 08/22/2000 |
| 4740677 | Axis separator electronic translator In an optically phased array of multiple laser telescopes, the phasing between the telescopes is accomplished by sampling adjacent outgoing wavefronts. The two samples of each wavefront are then combined to form an interference pattern on a camera. This i... | 04/26/1988 |
| 4689758 | Microcomputer controlled image processor The microcomputer controlled image processor receives an interference pattern of samples of pairs of transmitted laser beams from a charge couple device (CCD) camera. The present invention then calculates an optical path difference between each pair of be... | 08/25/1987 |
| 4667090 | Synthetic aperture multi-telescope tracker apparatus A plurality of telescopes provide output return signals which are applied both directly and in sampled form to a photo-detector cell. The detected signals from the photo-detector will represent the constant and transient errors of the telescope system. A ... | 05/19/1987 |
