Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7330214 | Diaphragm apparatus of lens for CCTV camera A diaphragm apparatus of a lens for a CCTV camera includes a diaphragm blade which opens and closes a stop aperture of the diaphragm apparatus; and an ND filter which is attached to the diaphragm blade, the ND filter having a spectral transmittance so that the trans... | 02/12/2008 |
| 7088918 | Mounting device for a camera with automatic exposure mode to an optical system A mounting device for a camera with automatic exposure mode to an optical system is disclosed. An adapter tube has a first and a second end, wherein the first end is attached to the camera and the second end is attached to the optical system. A mounting element, pro... | 08/08/2006 |
| 6738576 | Camera and shutter device A camera includes a movable aperture stop plate, which changes over a light path of object light between plural stop states. A depressible shutter release button is provided. A shutter mechanism is released in response to depression of the shutter release button aft... | 05/18/2004 |
| 6724988 | Lens-fitted photo film unit having aperture stop device A lens-fitted photo film unit is pre-loaded with photo film. A photometric circuit measures object brightness of a photographic object, and determines which of high brightness or low brightness the object brightness is according to comparison with a predetermined re... | 04/20/2004 |
| 6618561 | Stop changing device for a camera A lens-fitted photo film unit is provided with a movable stop plate formed with small and middle stop apertures. The small stop aperture has a smaller diameter, and the middle stop aperture is larger than the small stop aperture. A fixed large stop apertu... | 09/09/2003 |
| 6539176 | Photometry device for camera In a photometry device, a pair of transistors having the same properties. The first transistor is connected at its base to the CdS photo sensor, and at its collector to a resistor. The second transistor is connected at its base to the resistor, and at its... | 03/25/2003 |
| 6443638 | Exposure control apparatus used for a camera A flash lever for actuating a flash switch is interlocked with a stop plate via a spring. When a picture is taken without a flash, photographing is performed in a state that a small stop opening of the stop plate is disposed at an optical path. When the f... | 09/03/2002 |
| 6397011 | Camera with automatic stop change device A first light guide and a second light guide are attached to a flash charge switch. Each light guide is arranged in a direction where the flash charge switch is slid. If the flash charge switch is in an OFF position, the first light guide transmits light ... | 05/28/2002 |
| 6154612 | Electronic flash control device A flash control device for a camera includes a light emission unit which emits light to illuminate a subject to be imaged by the camera, a preliminary light emission control unit which causes the light emission unit to emit light during a preliminary ligh... | 11/28/2000 |
| 6108496 | Exposure control system for camera An exposure control system for a camera, which is provided with a strobe, includes a photometry system that measures brightness of an object; an exposure parameter determining system that determines exposure parameters in accordance with the brightness de... | 08/22/2000 |
| 5999752 | Exposure controller for use in a camera An exposure controller for use in a photographing apparatus including a flash, includes a diaphragm having a changeable opening to adjust the amount of light reaching a photosensitive medium from a lens optical system, a diaphragm control unit for changin... | 12/07/1999 |
| 5960217 | Wide range focusing camera In a wide range focusing camera, a cooperating engagement members are provided in moveable parts of a focusing mechanism and an aperture opening selecting mechanism so as to force the latter into selecting a smaller one of the aperture opening areas when ... | 09/28/1999 |
| 5606393 | Illumination measuring device for panoramic photography An illumination measuring device for panoramic picture taking has a first photoelectric illumination intensity receiver which diffusely determines light falling in a first measuring region and illuminating a first panoramic portion, at least one further p... | 02/25/1997 |
| 5255047 | Strobo controlling apparatus In a strobe controlling apparatus, there are provided respective information outputs for outputting respectively the guide number information GV, film sensitivity information SV and object distance information DV, a judged diaphragm value is determined by... | 10/19/1993 |
| 5250979 | Technique suited for use in fixed focus cameras for improving image quality for non-standard display sizes and/or different focal length photographing modes Exposure control apparatus, and various accompanying methods, for use in a photographic camera for improving the overall quality of photographed images, i.e. increasing the number of acceptable and higher quality images, that are produced by the camera fo... | 10/05/1993 |
| 5144359 | Aperture value determining device for a flash system An aperture value determining apparatus for setting an optimal aperture value to be used in conjunction with a flash system of a camera. The aperture value is determined based on, for example, shutter speed, brightness, and film speed.... | 09/01/1992 |
| 5122829 | Camera having an automatically operating built-in strobe A strobe incorporated camera having a strobe light emitter which emits strobe light, a light emitter driving mechanism which moves the light emitter between a retracted position in which the light emitter is retracted in a camera body and an operative pos... | 06/16/1992 |
| 5115269 | Camera having luminance difference mode control In a camera in which a luminance difference between the luminance of a subject and the luminance of the subject background is discriminated by using a predetermined first threshold value and a photographic mode is selected in conformity with the results o... | 05/19/1992 |
| 4939534 | Flash photography system A flash photography system which comprises a photographic camera and an electronic flash device; said photographic camera comprising aperture value output means for producing aperture value under the flash light photographing, flash light stop signal output me... | 07/03/1990 |
| 4803509 | Camera system operable by carrying data from a camera accessory to a camera body A camera system operable with data carried from a camera accessory to a camera body. The camera accessory has a ROM for storing various data at a plurality of addresses, respectively, each of which data consists of a plurality of bits, and a coupling term... | 02/07/1989 |
| 4688921 | Alarm device for camera An alarm device for a camera provided with a stop control device for automatically controlling the stop of an objective lens mounted on the camera, and a photosensor for receiving an illumination light which has been radiated from a flash device to be ele... | 08/25/1987 |
| 4603958 | Automatic electronic flash An automatic electronic flash measures brightness of a predetermined photographing angle including a photographic object, and using the measured brightness and film sensitivity indicates a stop value to be set in camera when the photographic scenery has r... | 08/05/1986 |
| 4563070 | Exposure control apparatus An exposure control apparatus including a diaphragm for controlling the exposure on a focal plane, a light metering element for measuring the light passing through an aperture of the diaphragm, a servo control circuit for controlling the size of the apert... | 01/07/1986 |
| 4547057 | Flash photographic apparatus In a flash photography apparatus of the type determining an aperture for flash photography based on an integrated value of the reflected light quantity received from an object to be photographed as a result of pre-flashing, the quantity of light received ... | 10/15/1985 |
| 4521094 | Aperture value control device utilizing frequency signal from flash unit for camera The aperture value in a camera having a flash unit is controlled by a frequency signal from the flash unit. The frequency of the signal is variable in accordance with the light emission characteristics of the flash unit.... | 06/04/1985 |
| 4501481 | Flash photographing system A flash device for a photographic camera either inhibits a flashing action or shifts the control mode of the camera from flash photography to daylight photography in cases where the object to be photographed is located outside of an adequately operable di... | 02/26/1985 |
| 4484807 | Flash light with pre-emission control A flash photographing device of the type which detects the distance up to an object by a preliminary flash emission so as to control the diaphragm according to the detailed object distance, while the light adjusting level of the light adjusting speed ligh... | 11/27/1984 |
| 4482237 | Device for detecting stop value data from flash unit used with camera In a flash unit used with camera for providing stop value data consisting of a frequency clock, a circuit which can detect stop value data consisting of a frequency clock or the like provided from the flash unit without being influenced by noise by permit... | 11/13/1984 |
| 4478502 | Aperture control device for use in a still camera An aperture size control device for use in a still camera includes an aperture stop device which can change its aperture size rapidly in response to a drive circuit during a single exposure cycle. A control device is connected to the drive circuit for con... | 10/23/1984 |
| 4477171 | Electronic flash system There is disclosed an electronic flash system having a diaphragm which is operated on the basis of an aperture control signal from an electronic flash device. A light sensitive element position in the camera system produces an electrical signal representi... | 10/16/1984 |
| 4465353 | Electronic flash device An electronic flash device including a main light part, a pre-emission light part, an illumination direction changing mechanism for changing the illumination directions of the main light part and the pre-emission light at the same time in the case of boun... | 08/14/1984 |
| 4343544 | Diaphragm control apparatus for combined use of an electronic flash with a camera A diaphragm control apparatus for combined use of an electronic flash with a camera includes a changeover switch which assumes different positions depending whether a flash photography utilizing a usual electronic flash, a flash photography utilizing a de... | 08/10/1982 |
| 4327978 | Camera diaphragm control device for flash photography A camera diaphragm control device which arrests a diaphragm when a TTL light measurement output represents a given relationship with respect to a reference signal during stop down operation of the diaphragm can automatically set the diaphragm to a specifi... | 05/04/1982 |
| 4305647 | Camera flash photography systems In a flash photography mode for a camera, a preliminary flash is generated for a substantial duration and substantially constant intensity prior to the primary flash used for actual photographing such that the diaphragm aperture of the camera may be chang... | 12/15/1981 |
| 4291959 | Photographic apparatus A camera and flash exposure control apparatus varies the ratio of ambient to fill-in flash exposure light as a function of the size of the camera's exposure aperture.... | 09/29/1981 |
| 4230402 | Flash exposure control system The present invention relates to a device for flash light photography and, more particularly, to a device for flash light photography for adjustable light stroboscope. A major feature of the present invention is that the adjustable light condition of the ... | 10/28/1980 |
| 4178083 | Camera containing a movable automatic dimmer strobo A camera containing a movable automatic dimmer strobo, which camera, during ordinary photographing operation, sets the iris diameter by way of an automatic exposure control device and, during the flash photographing operation, effects the photographing wi... | 12/11/1979 |
| 4078242 | Flash light photographic systems The present invention relates to various kinds of the flash light photographic systems consisting of a combination of either of the below mentioned cameras with either of the below mentioned flash light device; A camera CD presenting an input terminal of the i... | 03/07/1978 |
| 3984847 | Electric eye exposure apparatus for use in a camera having a bladed shutter mechanism An electric eye exposure apparatus includes an exposure meter interlocked with drive means and a switching mechanism for selectively connecting the drive means either to a shutter blade operating mechanism or to a diaphragm aperture control mechanism. The... | 10/05/1976 |
| 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 |
