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| Number | Title | Issue Date |
| 4981360 | Apparatus and method for projection moire mapping Photographic mapping of structural surfaces is accomplished by a projection Moire method. Deformations of the structure surface being investigated are zeroed out when under no load. This is accomplished by projecting a master grille pattern onto a test su... | 01/01/1991 |
| 4964770 | Process of making artificial teeth In a process of making artificial teeth horizontal or other contour lines are generated on the ground tooth stump and on adjacent surfaces, said lines are detected by optoelectronic means, the data which have thus been acquired are used to compute the thr... | 10/23/1990 |
| 4939380 | Topographical camera operable by applying a grid-generated Moire image onto a CCD image sensor A camera for recording the topography of a specimen surface by generation of a Moire image with the aid of an object grid applied on the object, and which includes a CCD sensor with a reference grid (8) which is applied as a physical grid structure direct... | 07/03/1990 |
| 4794550 | Extended-range moire contouring The measurement range of Moire contouring techniques is extended beyond the Nyquist frequency limit by constraining the reconstruction of a surface contour according to a priori knowledge about the surface. In one example the a priori knowledge is that th... | 12/27/1988 |
| 4611288 | Apparatus for taking odontological or medical impressions Dental prostheses, such as crowns, inlays or dentures are produced automatically based upon an optical impression taken of the oral region wtih nontraumatic radiation. The reflected waves are transformed into numerical data which is used directly to opera... | 09/09/1986 |
| 4600304 | Optical level An optical instrument arrangement for determining the horizontality of a measured surface, where the arrangement comprises a solid reflecting device on a measured surface, a liquid reflecting device on a measured surface, a collimated light source positio... | 07/15/1986 |
| 4577940 | Moire microscope A moire microscope comprises an objective lens, a collimating lens, and a pair of spaced-apart gratings arrayed along an optic axis and adapted for providing a magnified moire deflectogram of a phase object. The microscope provides a simple apparatus for ... | 03/25/1986 |
| 4575805 | Method and apparatus for the fabrication of custom-shaped implants The surface characteristics of an organ that needs restoration, for example, a tooth which has been prepared for an inlay insertion, are read by means of a noncontact scan-head. The three-dimensional shape parameters of the implant required to restore the... | 03/11/1986 |
| 4564295 | Apparatus and method for projection moire topography The disclosure is directed to an apparatus and method for obtaining an improved moire fringe pattern image of an object. A beam of incoherent light is projected at the object. A grating is disposed in the path of the beam projected at the object, this gra... | 01/14/1986 |
| 4541113 | Apparatus and method of line pattern analysis The disclosure herein describes an apparatus and a method of analysis of line patterns such as fingerprints, ideograms, or the like, which comprises the steps of superimposing a centrosymmetric reference pattern of lines over the line pattern to be analyz... | 09/10/1985 |
| 4525858 | Method and apparatus for reconstruction of three-dimensional surfaces from interference fringes A fully automatic method for rapidly and unambiguously interpreting fringe patterns, including those having branched fringes, is provided. The information from the fringe patterns processed by the method of the invention can be used in testing, surface ch... | 06/25/1985 |
| 4480920 | Fringe pattern method and apparatus for producing X-ray dosage compensating filters Method and apparatus for producing a fringe pattern corresponding to height and depth gradients of an illuminated object with the fringe pattern lines used to define edges of stacked sheets provided as a filter for X-ray dosage tailoring. A camera is prov... | 11/06/1984 |
| 4459027 | Method and equipment for mapping radiation deflection Equipment and method for mapping an object using moire deflectometry wherein collimated radiation deflected from the object is used to generate a moire pattern and wherein by measuring linear deflections in the pattern, variations in characteristics of th... | 07/10/1984 |
| 4202630 | Method of and apparatus for recording surface irregularity of object A slit image extending in the lateral direction of a travelling object is projected onto the surface of the object from one direction by means of a projection lens. The slit image formed on the object is then projected by means of an image focusing optica... | 05/13/1980 |
| 4102578 | Method of and apparatus for recording surface irregularity of object A slit image extending in the lateral direction of a travelling object is projected onto the surface of the object from one direction by means of a projection lens. The slit image formed on the object is then projected by means of an image focusing optica... | 07/25/1978 |
| 4102577 | Method of forming moire contour lines A light beam is periodically chopped and then converted to a plane of light by a cylindrical lens. As the plane of light is chopped, it is caused to scan an object in the direction normal to the plane of the light to form a grating pattern on the object. ... | 07/25/1978 |
| 4051483 | System for measuring and recording three dimensional configuration of object An encoder for converting a distance to an electric signal is connected with a computer to put a distance signal into the computer. Th encoder is put on a moire pattern obtained by interference between a standard grating and a deformed image of the standa... | 09/27/1977 |
| 3964829 | Coin photographic apparatus Coin photographic apparatus has a base to which guides are attached, the latter having slots to receive a slidable support or carriage that has recesses that receive a coin or medal to be photographed. A ruled grid rests on a holder and movable sits on a ... | 06/22/1976 |
| 3952150 | Visualization of vibrations, deformations or level lines of a three-dimensional object The present invention relates to a method of and apparatus for enabling the visualization of isometric physical condition maps of a three-dimensional test object, the physical condition being for example the amplitude of vibration of the test object or th... | 04/20/1976 |
| 3943278 | Surface deformation gauging system by moire interferometry A technique for comparing master parts with replicas to determine differences in shapes or sizes, is disclosed, which uses interferometric techniques as disclosed. A television camera is used to scan the pattern established by illuminating the subject wit... | 03/09/1976 |
