Celebrity Inventors
Lawrence Welk, the bandleader who entertained millions of Americans over a generation of broadcasting his TV show, once received a patent: for a music-themed design of an ashtray.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7057629 | Control apparatus An object of this invention is to obtain a control apparatus capable of easily and speedily setting an output frequency, and it is constructed so as to change a change width of a frequency setting value in response to a rotational speed of a handle operation by an o... | 06/06/2006 |
| 5113216 | Camera A camera comprising a semi-open type shutter which also serves as a diaphragm, a flash device, a setting circuit for setting an aperture value for flash photography, and a control circuit for varying the opening speed of the shutter in accordance with the... | 05/12/1992 |
| 4200379 | Exposure control system including blade sensing follow focus and trim arrangement An improved exposure control system configured for automatic operation in both the ambient light and flash illumination modes of operation and including a pair of displaceably mounted shutter-aperture blades, a blade position sensor operative to detect a ... | 04/29/1980 |
| 4196987 | Multiple mode exposure control system with gray code aperture selector An exposure control system being selectively operable in a plurality of ambient and flash illumination modes of operation. The operator may program the system for a selected one of the modes by setting a corresponding programming combination of two mode s... | 04/08/1980 |
| 4065776 | Camera with automatic flash exposure system The invention discloses a camera with an automatic flash exposure system of the type in which depending upon the distance to a subject, the brightness thereof and the light flux to be produced by a flash tube or bulb, an f-number and exposure time are aut... | 12/27/1977 |
| 4047190 | Hybrid exposure control system employing dual maximum blade displacement An exposure control system for photographic apparatus having a shutter-diaphragm mechanism for regulating the exposure aperture and the exposure interval under both ambient and flash illumination conditions. The shutter-diaphragm includes a blade arrangem... | 09/06/1977 |
| 4017873 | Exposure control system with braking capability This invention relates to a photographic apparatus which includes an exposure control system having shutter blade elements with respective selectively shaped aperture openings therethrough which, depending upon the position of the blades, symmetrically ov... | 04/12/1977 |
| 4007468 | Trim control apparatus for photographic exposure control system An optical trim mechanism is provided for embodiment in the exposure control system of a photographic camera apparatus wherein the output response of the exposure control system is determined by both the photographic scene light reaching the photographic ... | 02/08/1977 |
| 3977014 | Follow focus exposure control system with improved uniform trim control An exposure control apparatus is provided for a photographic camera of the type suitable for use with a source of artificial illumination and includes a follow focus system for determining a maximum exposure aperture in correspondence with lens focusing a... | 08/24/1976 |
| 3975744 | Automatic exposure control system A photographic exposure control system which automatically functions in an ambient mode of operation, in response to scene light values and in a flash mode of operation, in response to both scene light values and scene ranging, the latter providing select... | 08/17/1976 |
| 3972057 | Exposure control system with follow focus capability An improved exposure control system featuring a follow-focus mechanism wherein the geometrical relationship of the mechanical components are determined in a select manner to provide uniform adjustment of the exposure aperture through a trim mechanism irre... | 07/27/1976 |
| 3962707 | Camera diaphragm with follow focus control Camera diaphragm control apparatus in which slidable diaphragm blades are adjustable by a differential motor to establish and continually maintain an exposure aperture of size related to ambient scene brightness. A linkage, responsive to mounting a flash ... | 06/08/1976 |
| 3952312 | Exposure control system for photographic apparatus A photographic camera apparatus of the type adapted for selective use with a source of artificial illumination includes a follow focus system embodying an interceptor which is selectively movable into the locus of travel of an exposure mechanism while at ... | 04/20/1976 |
