Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 7092076 | Surveying instrument A surveying instrument, comprising a collimation optical system and a visible laser projecting device with a visible laser light source unit for emitting a point light, wherein the surveying instrument comprises a photodetector for detecting a reflection light enter... | 08/15/2006 |
| 7012237 | Modulated laser light detector A modulated laser light detector that converts laser light energy into electrical signals which exhibit a frequency that is substantially the same as the laser light modulation frequency, in which these signals allow the detector unit to determine a position where t... | 03/14/2006 |
| 6963658 | Method of detecting and measuring a moving object and apparatus therefor, and a recording medium for recording a program for detecting and measuring a moving object There are provided a plurality of units for detecting a moving object in an image from changes of an image structure in a monitor area defined in a linear strip on a single straight line consisting of a base line and its partitions, and a height of a moving object i... | 11/08/2005 |
| 6480620 | Method of and an apparatus for 3-dimensional structure estimation A method of 3-dimensional structure estimation of the invention, making use of a plurality of stereo-pictures, repeats, for each pixel of a first picture, a step of extracting corresponding small regions (4) corresponding to the concerning pixel according... | 11/12/2002 |
| 5886340 | Multiple step automatic focusing apparatus for a surveying instrument An automatic focusing apparatus includes a telephotographic system and a line sensor comprising multiple light receiving devices which receive light of an object image formed by the telephotographic system, multiple monitor sensors positioned adjacent to ... | 03/23/1999 |
| 5856663 | Focus detecting apparatus with virtual centering of line sensor A focus detecting apparatus includes a focus detecting device which forms an image through a telephotographic system, onto a line sensor, and which detects a focus state of the telephotographic system based on an output from a predetermined portion of the... | 01/05/1999 |
| 5856664 | Automatic focusing apparatus for detecting and correcting focus state of image optical system An automatic focusing apparatus including a focus detecting device which detects a defocus amount of image optical system, a focusing device which focalizes based on the defocus amount calculated by the focus detecting device. An adjustment device which a... | 01/05/1999 |
| 5764785 | Object identification system A system for the remote identification of objects under varying light conditions. Objects are illuminated with a non-coherent light source for viewing by an observer. A low power laser diode and lens system which sends a laser beam out on an inclined plan... | 06/09/1998 |
| 5740337 | Stereoscopic imaging system with electronically controlled convergence angle A stereo-graphic apparatus has first and second imaging devices to provide a first image and a second image, respectively. The first and the second imaging device are spaced from each other to define a predetermined convergence angle. A distance detecting... | 04/14/1998 |
