Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 5825466 | 3D photo printer with image distortion correction A photographic printer for making 3D pictures or animation pictures from at least two 2D images on lenticular print material. The printer uses a monitor for sequentially displaying 2D images. A projection lens is used to project the displayed 2D images on... | 10/20/1998 |
| 5539487 | Method and apparatus for recording stereoscopic images and lenticular recording material used therefor The improved method and apparatus for recording a stereoscopic image read a plurality of original images photoelectrically, split each original image into linear images of a desired pitch, perform any necessary image processing operations such as arrangin... | 07/23/1996 |
| 5471344 | Photographing apparatus having optical low-pass filter A photographing apparatus comprising an optical low-pass filter of phase grating type in which a plurality of prism portions, convex or concave in cross section, are arrayed in succession at a predetermined pitch, the arrangement being such that the apert... | 11/28/1995 |
| 5192969 | Stereographic projecting and recording method and apparatus therefor In processing a plurality of original images from different viewpoints through a lenticular sheet having a plurality of lenticular lenses to form a plurality of corresponding linear picture elements that are to be projected on a picture element recording ... | 03/09/1993 |
| 4959641 | Display means for stereoscopic images A stereoscopic display device in which a plurality of independently controllable and discrete light sources are provided in fixed relation to a lenticular screen. The light sources are adapted and arranged for the display of a pair of interlaced images su... | 09/25/1990 |
| 4668063 | Stereoscopic recording method and apparatus, and production method and apparatus Apparatus for producing a record of an object field in which substantially perspective change in one direction only is recorded. The apparatus comprises elongate aperture means (35) and an array of lens elements (34) which extends in two dimensions and is... | 05/26/1987 |
| 4557954 | Three-dimensional photograph A method of making a high quality three-dimensional photograph is disclosed. The method utilizes a camera with a film mount therein, a rastor, a film, a separator for keeping the line rastor separate from the film, and a vacuum generating device for maint... | 12/10/1985 |
| 4541007 | Stereoscopic color television system Five color television cameras take pictures of an object. A video signal from the central camera is transmitted by circuitry substantially the same as the circuitry used in existing color television system. The video signal is subtracted from four video s... | 09/10/1985 |
| 4528260 | Method of fabricating lenticular arrays A lenticular array suitable for CCD stripe filters is made by anisotropically etching a V-shaped groove in a 100 silicon wafer wherein the walls of the V-grooves are made by intersecting 111 planes, replicating the V-grooves in metal to form an inverted V... | 07/09/1985 |
| 4524127 | Method of fabricating a silicon lens array A lenticular array in silicon is made by anisotropically etching a V-shaped groove in a 100 silicon wafer wherein the walls of the V are made by intersecting 111 planes and exposing the surface having the V-grooves therein to a polishing etch whereby a se... | 06/18/1985 |
| 4481050 | Method of making a three-dimensional photograph A method of making a high quality three-dimensional photograph is disclosed. The method utilizes a camera with a film mount therein, a rastor, a film, a separator for keeping the line rastor separate from the film, and a vacuum generating device for maint... | 11/06/1984 |
| 4414316 | Composite lenticular screen sheet The present invention relates to a flexible composite sheet material having a thermoset patterned relief surface of high quality and definition which is particularly useful for producing high quality optical sheet components such as a lenticular screen sh... | 11/08/1983 |
| 4114168 | Film strip recorder and viewer A compact optical viewer and recorder which employs a Philips-type cassette. Small lenses project microimages from the film strip wound upon the cassette upwardly and onto a plurality of mirrors. The mirrors function to compress the throwing distance of t... | 09/12/1978 |
| 4050811 | Optical data record copier having array of lenses with field gaps aligned with data gaps An optical data record copying apparatus is described which includes an array of lenses whose viewing fields do not overlap but are separated by field gaps. The viewing field gaps are aligned with data gaps between data groups in the data tracks on the ma... | 09/27/1977 |
