Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 7142780 | Camera system and lens barrel A camera system comprises a camera body; a lens barrel having a photographing optical system, which can be mounted at the camera body; a shutter release switch disposed at the camera body and operated to start a shutter release operation; and a first operating switc... | 11/28/2006 |
| 7042510 | Setting operation device and electronic apparatus It is an object of this invention to provide a setting operation device which can effectively cope with the tendency toward multiple functions and allows a user to easily change and check functions. In order to achieve this object, the device includes a first rotati... | 05/09/2006 |
| 6546207 | Camera capable of inputting data and selectively displaying image A camera, including a body, a lens barrel has a rotating ring, a rotational position detector, a character memory and a character information recorder. The rotating ring is rotatably provided on an outer circumference of the lens barrel. The rotational po... | 04/08/2003 |
| 5895133 | Exposure mode selecting device An exposure mode selecting device uses an A-position AE mode code, an M-position AE mode code, and a no-aperture-ring AE mode code, so that a proper exposure mode is selected. When an interchangeable lens, having an aperture ring being set to an A-positio... | 04/20/1999 |
| 5819122 | Camera When CPU 2 is in the standby state, switch S4 is turned OFF such that switch S1 is not connected to condenser C1 and the signals from switch S1 are pulled up by means of resistor R2. When CPU 2 becomes activated through the detection of a change in the st... | 10/06/1998 |
| 5623326 | Camera-shake correction apparatus A camera-shake correction apparatus includes externally operable operation member for changing the focusing length or the phototaking magnification of a phototaking lens upon being operated, camera-shake detecting means for detecting a camera-shake amount... | 04/22/1997 |
| 5164760 | Camera data setting device A camera exposure data setting device for setting exposure data in digital form in response to on or off of switches. A first switch actuating member is manually operable for changing mainly an exposure time value and is located at or about the position w... | 11/17/1992 |
| 5005047 | Camera data setting device A camera exposure data setting device for setting exposure data in digital form in response to [on or off] of switches. A first switch actuating member is manually operable for changing mainly an exposure time value and is located at or about the position... | 04/02/1991 |
| 4963909 | Camera system for selectively generating new memory address when a new switching state is different from a previous switching state In an information processing device which obtains, by computation, an address corresponding to input information obtained from an input device and reads out data from the computed address, instead of performing an address computing operation every time a ... | 10/16/1990 |
| 4958182 | Arrangement for determining camera setting A camera includes a central processing unit which determines the exposure of the film in accordance with the zone method. A light measuring device, a diaphragm data device, a maneuverable film sensitivity switch, and a development type switch generate the... | 09/18/1990 |
| 4647171 | Fully automatic diaphragm control interchangeable lens An interchangeable variable aperture lens can be used as an automatic lens with a camera body using digital signal control and with a camera body using analog signal control, and as a manual lens. The lens has both digital and analogue circuits for provid... | 03/03/1987 |
| 4541700 | Method and devices for transferring electrical signal information between a photographic lens and camera Active lens components are provided for transmitting to a corresponding photographic camera information from a photographic field lens which is transformed into electrical signals. These components transform the information into electrical signals, the pr... | 09/17/1985 |
| 4514066 | Mechanism for indicating and setting the parameters of exposure aperture and/or exposure time for photographic cameras Photographic exposure parameter indicating and setting accessory mechanism for a lens shutter housing, e.g. of a professional or studio camera, having a manually operatable exposure parameter setting device, e.g. an exposure time setting device, which in ... | 04/30/1985 |
| 4504133 | Power source switch for cameras A camera includes a manually adjustable photographic parameter such as diaphragm aperture, shutter speed, focus distance or the like and an electrically energizable network indicating the value of the adjusted parameter or a related value. The indicator n... | 03/12/1985 |
| 4408499 | Click stop device A click stop mechanism for an interchangeable lens. A first click stop ball is adapted to engage with any of a plurality of click grooves formed in an inner wall of an aperture preset ring corresponding to both manual aperture preset marks and an automati... | 10/11/1983 |
| 4372662 | Diaphragm setting device for photographic camera Diaphragm setting device for a photographic camera lens shutter, which comprises an elongate carrier mounted on the outer periphery of the shutter housing and a movable slider operatively connected to the diaphragm adjusting ring of the lens shutter, such... | 02/08/1983 |
| 4371245 | Photographing lens system with focus informing means A photographing lens, which is to be mounted on a camera in an interchangeable manner is provided with a focus-informing means, which informs the photographer of focussings of the photographing lens during manual focussing operation thereof by buzzer or b... | 02/01/1983 |
| 4341450 | Selectively lockable camera exposure factor setting mechanism A camera exposure factor setting member, such as a diaphragm setting member, is movable in the vicinity of a fixed member, such as the lens barrel of an exchangeable lens. Either the fixed member or the exposure factor setting member is provided with a re... | 07/27/1982 |
| 4336991 | Exposure mode changeover device for interchangeable lens mounting An interchangeable lens assembly having an adapter member which is maintained rotatively fixed relative to a camera during mounting of the lens assembly, and a lens barrel subassembly rotatable relative to the adapter member and the camera to effect mount... | 06/29/1982 |
| 4330192 | Interchangeable lens assembly for a camera A photographic interchangeable lens assembly which includes a diaphragm mechanism is provided with an aperture value transmitting member and a diaphragm actuating lever which extend axially from the lens assembly to the camera and which are moved relative... | 05/18/1982 |
| 4326789 | Interchangeable lens assembly for a camera An interchangeable lens assembly for a camera is formed in two parts with the first part being removably attachable to the camera body and the second part being removably attachable to the first part. A diaphragm mechanism is arranged in the second part o... | 04/27/1982 |
| 4281916 | Interchangeable lens assembly for a camera An interchangeable lens assembly including an adapter member which is held in a predetermined position relative to a camera when the lens assembly is mounted on the camera and a lens barrel structured to be rotatable relative to the adapter member during ... | 08/04/1981 |
| 4236803 | Lens for a camera provided with code patterns A lens information introducing device in a camera comprises n bits of code patterns provided on a lens and photoelectrically legible, optical means for introducing the code patterns into a camera body and imaging the same at a predetermined position, and ... | 12/02/1980 |
| 4230403 | Mounting for interchangeable camera lens assembly with diaphragm means An interchangeable lens assembly for a camera including a lens barrel having a diaphragm mechanism mounted therewith, a bayonet coupling mechanism fixed on the lens barrel and adapted to be brought into engagement with a complementary coupling mechanism o... | 10/28/1980 |
| 4201462 | Lens barrel having an aperture information transmission section Full and minimum aperture information is transmitted to a camera body from an interchangeable lens by coding possible combinations of the two values into various discrete single values and transmitting the single value to a decoder in the camera body. For... | 05/06/1980 |
| 4200381 | Photographing mode switching mechanism in camera An improved photographing mode switching mechanism is disclosed which is adapted for a camera provided with a switchover member movable between a first position in which non-diaphragm control mode is selected and a second position in which diaphragm contr... | 04/29/1980 |
| 4196997 | Interchangeable lens for a camera In an interchangeable lens for a camera, at least three terminals are provided on the fixing cylinder of the lens. A variable diaphragm resistor exhibiting a resistance value corresponding to the diaphragm value set by the diaphragm drive ring of the lens... | 04/08/1980 |
| 4152064 | Diaphragm linkage device for interchangeable lens A diaphragm linkage device for interchangeable lenses wherein more than three column-shaped guide members with a groove consisting of plastic material with a small friction coefficient are provided around the optical axis of the barrel for the interchange... | 05/01/1979 |
| 4141639 | Lens barrel for camera A lens barrel has an aperture ring adapted to be positioned adjacent a camera when the lens barrel is mounted to the camera, and has on the aperture ring an interlocking pawl for transmitting the lens-side information to the exposure meter of the camera. ... | 02/27/1979 |
| 4121231 | Exposure factor setting device for a camera An exposure factor setting device for a photographic camera comprising manually adjustable shutter speed and diaphragm aperture setting components, an indicator cooperative with a shutter speed scale and capable of responding to either of the outputs of t... | 10/17/1978 |
| 4118726 | Exchangeable lenses for use in internal light measuring type single lens reflex cameras Each exchangeable lens in a series of exchangeable lenses for use in single lens reflex cameras comprises a lens barrel including at least one lens and a diaphragm, a fixed index on the outer surface of the lens barrel, a diaphragm setting ring including ... | 10/03/1978 |
| 4101223 | Attachment member for exchangeable lenses Disclosed is an attachment member including a substantially circular body adapted to be releasably attachable to the outer periphery of an exchangeable lens of the type, which when mounted on a single lens reflex camera body, is adapted to transmit to the... | 07/18/1978 |
| 4101917 | Exchangeable lenses for single lens reflex cameras Disclosed are exchangeable lenses for use in single lens reflex cameras which include a diaphragm setting ring having an indicia for automatic aperture control and an aperture scale for manual aperture setting thereon, the scale extending from a mininum f... | 07/18/1978 |
| 4085416 | Aperture interlocking device for a single lens reflex camera of the interchangeable viewfinder type In a single lens reflex camera, an aperture interlocking device wherein a pantograph mechanism has one lever biased in one direction within a viewfinder detachable with respect to the body of the camera, is connected to the engaging portion of the apertur... | 04/18/1978 |
| 4044370 | Photographic camera with density-variable filter A density-variable optical filter is mounted on a camera so that the density of the filter may be freely selected by manual operation independently of the aperture size of a diaphragm and the shutter speed. In a preferred embodiment, a rotatable ring for ... | 08/23/1977 |
