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| Number | Title | Issue Date |
| 5242709 | Method for hardening zinc selenide and zinc sulfide A body resistant to abrasion and transmissive to light is provided which is formed essentially of zinc sulfide or zinc selenide having incorporated therein small amounts of tellurium. The body can form a layer over zinc sulfide, zinc selenide, or a conven... | 09/07/1993 |
| 5239404 | Large angle reflective scanning system and method A system and method for optically scanning a scene are disclosed. The system is rotated about a pitch axis and a roll axis to provide the desired scanning capability. The system consists of a primary mirror, a secondary mirror, a tertiary mirror and a fol... | 08/24/1993 |
| 5229592 | Real scene imaging system pupil phasing method and apparatus A method and apparatus for phasing the apertures of a multiple-aperture imaging system is disclosed. An imaging system gathers light in either a scanning or a staring mode from a natural or real scene without artificial light sources. The spatial frequenc... | 07/20/1993 |
| 5214882 | Vacuum activated tool for the fabrication of optical surfaces A tool is disclosed for accurately and rapidly finishing optical surfaces. The tool has a plurality of lapping buttons attached to its face for contacting the optical surface to be finished. The lapping buttons are held to the surface of the workpiece by ... | 06/01/1993 |
| 5122424 | Abrasion-resistant, infrared transmitting optical components A body resistant to abrasion and transmissive to light is provided which is formed essentially of zinc sulfide or zinc selenide having incorporated therein small amounts of tellurium. The body can form a layer over zinc sulfide, zinc selenide, or a conven... | 06/16/1992 |
| 5094519 | Cooled laser mirror having adaptive flow control A adaptive flow-control regulator is disclosed for use in controlling the circulation of cooling fluid through in a cooled laser mirror. The adaptive flow-control regulator utilizes a temperature-sensitive spring to control the movement of a plunger with ... | 03/10/1992 |
| 5076700 | Bonded lightweight mirror structure A lightweight mirror is disclosed in which the core and backsheet of the mirror are constructed from a single piece of glass. The core is lightweighted by drilling or otherwise forming a series of pockets in the core with the machining process proceeding ... | 12/31/1991 |
| 5074654 | Hydraulic actuators for optical systems Hydraulic actuators are disclosed which are useful for controlling the reflecting surface of deformable mirrors or positioning the segments a segmented reflecting mirror. In one embodiment electrodistortive actuators are used to control movement of a pist... | 12/24/1991 |
| 5072104 | Achromatic null lens A wavefront correction system is provided which uses an achromatic null lens to correct various aberrations introduced in a spherical wavefront when the wavefront is reflected off a non-spherical surface, particularly a parabola. Chromatic aberration, inc... | 12/10/1991 |
| 5064066 | Package for spooled products A protective cover is disclosed for covering material contained on spools, such as solder. The cover includes a plurality of tabs which are contained in a cavity to receive the spool. Each of the protective tabs has a horizontal slot engage a flange of th... | 11/12/1991 |
| 5055445 | Method of forming oxidic high Tc superconducting materials on substantially lattice matched monocrystalline substrates utilizing liquid phase epitaxy A method of forming an epitaxial layer of an oxidic high Tc superconductor on a substantially lattice matched monocrystalline substrate is described. The film is formed by liquid phase epitaxy utilizing a melt containing a nutriment composed of... | 10/08/1991 |
| 5040860 | Momentum-balance mechanism for use with a scan mirror or other component A momentum balance-mechanism is disclosed in which a mirror or other object which must be rapidly dithered around tip and tilt axes is supported above a base. The momentum balance-mechanism permits rapid dithering of the mirror or other mechanism while mi... | 08/20/1991 |
| 5037190 | Fusible link actuators for deformable mirrors A construction for a deformable mirror is disclosed in which each of the electrodistortive actuators used to selectively impart deformations to the mirror's reflecting facesheet are mechanically fastened to the facesheet and may be disengaged from the fac... | 08/06/1991 |
| 5002378 | Light weight cooled mirror A lightweight cooled mirror is disclosed in which cooling of the mirror's reflecting surface is provided by a two-phase fluid contained in an enclosed chamber behind the reflecting surface. The chamber includes an evaporator section in contact with the re... | 03/26/1991 |
| 4970060 | Pure or mixed monocrystalline boules of lanthanum orthogallate Monocrystalline lanthanum orthogallate compositions grown along a predetermined crystallographic direction in the form of a single crystal of a size greater than 1 cm in diameter/width and at least 10 cm in length are described. Such compositions include ... | 11/13/1990 |
| 4958931 | System utilizing an achromatic null lens for correcting aberrations in a spherical wavefront A wavefront correction system is provided which uses an achromatic null lens to correct various aberrations introduced in a spherical wavefront when the wavefront is reflected off a non-spherical surface, particularly a parabola. Chromatic aberration, inc... | 09/25/1990 |
| 4954211 | Monocrystalline lanthanum orthogallate laser material Doped lanthanum orthogallate laser materials produced in the form of large perovskite-type doped single crystals are disclosed. Doped single crystals of lanthanum orthogallate are grown from a pure melt of lanthanum oxide, gallium oxide and dopant oxide w... | 09/04/1990 |
| 4944833 | Czochralski pulling of monocrystalline lanthanum orthogallate Monocrystalline lanthanum orthogallate grown along a predetermined crystallographic direction in the form of a single crystal of a size greater than 1 cm in diameter/width and at least 10 cm in length is described. Also described is a class of perovskite ... | 07/31/1990 |
| 4940318 | Gradient membrane deformable mirror having replaceable actuators A deformable mirror is disclosed having replaceable, electrically operable actuators for deforming the mirror's reflecting surface. A flexible retraction membrane is disposed between the actuators and the reflecting surface and the mirror's facesheet is b... | 07/10/1990 |
| 4934803 | Differential pressure deformable mirror A deformable mirror construction is disclosed in which a difference in pressure between the front reflecting surface of the deformable mirror and an enclosed chamber behind the mirror's reflecting surface is used to restore the reflecting surface to its u... | 06/19/1990 |
| 4932119 | Method of making standard electrodisplacive transducers for deformable mirrors A construction for electrodisplacive transducers for use in deformable mirrors in which the transducer is assembled from two or more segments of electrodisplacive material. Each segment contains multiple stacked layers of electrodisplacive material which ... | 06/12/1990 |
| 4923302 | Method and apparatus for calibrating deformable mirrors having replaceable actuators An apparatus and method for calibrating deformable mirrors having replaceable actuators are disclosed. The mirror to be calibrated is mounted on an x-y table to permit selective movement of the mirror between an actuator position adjustor means and a sens... | 05/08/1990 |
| 4906087 | Magneto-retractive deformable mirror A construction for a deformable mirror is disclosed in which permanent magnets are used to both retain actuators used to selectively deform the faceplate's reflecting surface within the mirror's base and to retain the mirror's faceplate to each of the act... | 03/06/1990 |
| 4902102 | Aspheric optical test plate assembly An aspheric optical test plate assembly is disclosed which permits a qualitative comparison to be made between the surface contour of a known area of an aspheric optical element and the surface contour of an area on the aspheric optical element which shou... | 02/20/1990 |
