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| Number | Title | Issue Date |
| 4250644 | Hand held microfilm reader A hand held microfilm reader wherein the film is maintained within the reader housing and the controls for positioning the film are easily manipulated by one hand. An optical system provides an intense automatically focused image projected onto a screen f... | 02/17/1981 |
| 4248508 | Projection mask storage and carrier system There is disclosed a system for storing a projection mask of the type used for printing integrated circuit patterns on silicon wafers. A special cassette package permits the mask to be stored in a clean sealed environment. A delivery system transports the... | 02/03/1981 |
| 4204753 | Rotary film strip holding apparatus Apparatus for holding film strips of the type having a plurality of miniaturized film images carried thereon, wherein the apparatus is to be used with an optical system which illuminates and projects the images on an enlarged scale so that they can be vie... | 05/27/1980 |
| 4192578 | Method of projecting a line image of uniform brightness A line image of uniform brightness is obtained from laser beam in spite of its Gaussian distribution of intensity about its optical axis by taking advantage of the fact that the intensity distribution is symmetrical. A laser beam emitted from a laser is d... | 03/11/1980 |
| 4149784 | Roll film reader/printer with manually insertable discrete film A roll film reader/printer transports film to a selected photographic area. Transparent areas are also left at any one or more selected locations on the roll film. When it is necessary or desirable to read an image on a separate and discrete film, "card",... | 04/17/1979 |
| 4148645 | Methods of stereo relief modeling A stereo relief modelling apparatus based on photogrammetric method and apparatus comprising a flexible platen, used with standard stereo plotting instrumentation such as double-projection direct-viewing plotting instruments. The purpose of the flexible p... | 04/10/1979 |
| 4139287 | Projector leveling and focusing aid and method of using same A slide body of a rigid transparent material is sized to be received within a slide transparency projector. The slide body includes a bubble level indicator having a narrow arcuate chamber which is filled with a liquid to create a bubble of air trapped wi... | 02/13/1979 |
| 4127322 | High brightness full color image light valve projection system There is disclosed an electro-optical system for real time projection of very high brightness, full color pictorial images from television or other program sources onto a large display screen from a set of three reflection type AC driven field effect mode... | 11/28/1978 |
| 4116553 | Display method and apparatus A display apparatus and method for comparing color combinations for carpet, drapery and wall decorating, consisting of a screen, light passages and projectors for directing images through the passages onto the screen. Observers compare the color scheme re... | 09/26/1978 |
| 4112438 | Method and projection apparatus An apparatus and method for constructing a completed image from an incomplete selected sample and for the projection of the image onto a surface upon which an article has been affixed so as to permit the viewing of the article as if the same were position... | 09/05/1978 |
| 4102734 | Method for producing a design on an arcuate surface Method and apparatus for producing a design on a preformed arcuate surface by etching and/or selective plating. The design is transferred to the arcuate surface by progressively and successively projecting narrow images of the design from a flat form and ... | 07/25/1978 |
| 4101373 | Method and apparatus for producing a design on a flat surface adapted to be formed into an arcuate surface Method and apparatus for producing a design on a flat surface by etching and/or selective plating. The design is transferred to the flat surface by progressively projecting successive narrow transverse images of the design from a rectangular transparency ... | 07/18/1978 |
| 4076398 | Visual communications system A multiple screen projection system including translucent multiple projection-receiving surfaces is described. The projection-receiving surfaces are adapted to receive a distortion-free image projected from front or rear on said surfaces from a point remo... | 02/28/1978 |
| 4072411 | Display device having image sense reversal capability An improved display device utilizes an electro-optical panel including an electrically insulating layer and a light-modulating layer of dipole, light control particles dispersed in a transparent matrix. An imaging electric charge pattern is impressed on t... | 02/07/1978 |
| 4060316 | Imaging method An imaging method which is comprised of a spatially varying imagewise output intensity for a corresponding imaging input. An imaging member comprising between two electrodes a photoconductor in contact with an about 1 to about 6 micron thick layer of nema... | 11/29/1977 |
| 4050797 | Method and apparatus for obtaining images of different color intensities combinations and relationships A method of obtaining images of different color intensities, combinations and relationships using at least two information images produced from a master image comprises, in one method cycle, positioning at least two information images successively in the ... | 09/27/1977 |
| 4013353 | Optical reflecting system A reflecting system utilizing a uniquely designed external mirror of specified shape to project and reflect light beams, distortion-free to the eye, from a light source to a receiving surface. The light source is uniquely positioned in relation to the mir... | 03/22/1977 |
| 3980403 | Variable grating mode imaging method A novel projection imaging method. An imaging member is utilized comprising between two electrodes a negative photoconductor in contact with an about 1 to about 6 micron thick layer of nematic liquid crystalline material which, in the absence of an electr... | 09/14/1976 |
| 3961334 | Combined laser recording and color projection system A high-speed, permanent recording, multicolor projection display system in which the beam of a pulsed Argon laser is selectively deflected and focused to burn the desired images in a metalized film record medium which is back-illuminated for projecting th... | 06/01/1976 |
| 3947103 | Low profile episcopic projector and opaque materials therefor The design of a large copy projector is such that its projection path extends rearwardly and obliquely so that the projector and the viewing screen can be viewed side-by-side. This projector uses an opaque copy sheet characterized by a lower specularly re... | 03/30/1976 |
| 3947105 | Production of colored designs Method and apparatus are described for producing a replica of a pattern composed of differently-colored zones, mutually exclusive areas of the replica being so encoded from zone to zone that when it is suitably illuminated, the light from each zone can be... | 03/30/1976 |
