Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 7336039 | Driving device for discharge lamps A driving device for driving discharge lamps (14) includes a first pulse circuit (11), a second pulse circuit (13), and a primary driving circuit (12). The first pulse circuit includes an input end, a first output end (1), and a se... | 02/26/2008 |
| 6571061 | Uniform flash-emission controller A uniform flash-emission controller which controls an intensity of a light emission of a flashtube, the uniform flash-emission controller includes an IGBT which causes the flashtube to emit a rapid series of short flash pulses; an IGBT controller which sw... | 05/27/2003 |
| 6510006 | Image-forming optical system A high-performance image-forming optical system made compact and thin by folding an optical path using reflecting surfaces arranged to minimize the number of reflections. The image-forming optical system has a single prism. When image-side three surfaces ... | 01/21/2003 |
| 6094536 | Flash photography system using preliminary emission and controlled main emission A flash photography system arranged to make preliminary emission and to control main emission according to a value of light measured at the time of the preliminary emission is capable of adequately performing main flat emission by making the preliminary e... | 07/25/2000 |
| 6067422 | Flash photography system The present invention relates to a camera system which is arranged to find the amount of emission of a main emission on the basis of a measured light value obtained during a preliminary emission, and perform control of the main emission. More specifically... | 05/23/2000 |
| 5870180 | Time measurement device and method useful in a laser range camera A time measurement device useful with laser range cameras and time-of-flight measuring methods includes a light transmitter responsive to start and stop signals for transmitting the light during a time interval to be measured, and a light receiver for rec... | 02/09/1999 |
| 5402201 | Automatic flash control device of camera An automatic flash control device of a camera includes a flashing source for performing preliminary flashing and main flashing, a first photodetector for measuring a light beam reflected by an object field and reflected by a shutter curtain via a taking l... | 03/28/1995 |
| 4415247 | Electric flash apparatus The invention provides an electric flash apparatus comprising a first flash unit incorporated into a camera, a second flash unit mounted detachably and outwardly on said camera, light quantity control means for controlling flash light of said first and se... | 11/15/1983 |
| 3994007 | Automatic flash photography apparatus The disclosed automatic flash photography apparatus operates with a camera having a shutter in which a diaphragm blade serves as a shutter blade, and the diaphragm diameter is varied by varying the time interval from the moment its blades start opening ti... | 11/23/1976 |
