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Ballistic resistant body covering

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Class 396/258 - Pawl/ratchet type


Subclass of Class 396 - Photography
Definition: Subject matter in which the diaphragm is adjusted to obtain
No. of patents: 30
Last issue date: 04/22/2008


NumberTitleIssue Date
7362371Camera using conductive camera element as radio antenna
To provide a camera capable of performing radio communication with other unit by jointly using a conductive component previously provided for the camera as a radio antenna without using an independent radio antenna. Because a conductive component (e.g. a reflector o...
04/22/2008
7289155Automatic exposure control apparatus and method
An automatic exposure (“AE”), control apparatus to prevent exposure errors resulting from “smear.” Image-capturing is performed at a single exposure time TI (I=1, 2, . . . n); a CCD output is applied with a CCD drive signal to perform an integrating operatio...
10/30/2007
7167204Automatic exposure control apparatus and method
An automatic exposure (“AE”), control apparatus to prevent exposure errors resulting from “smear.” Image-capturing is performed at a single exposure time TI (I=1, 2, . . . n); a CCD output is applied with a CCD drive signal to perform an integrating operatio...
01/23/2007
7051846Disc brake for vehicles
An electric heat-generating circuit installed within disc brakes of vehicles to generate heat and dry the discs when current flows. An electromagnetic induction unit generates a current to the electric heat-generating circuit by using an electromagnetic induction ph...
05/30/2006
5930535Exposure control device for camera
Disclosed is an exposure control device for a camera. The exposure control device has a magnetic plunger including a permanent magnet and a plunger coil. The plunger coil generates, when energized, a magnetic field which weakens a magnetic force of the pe...
07/27/1999
5768639Diaphragm controlling device for a camera
A diaphragm control device for a camera comprises a diaphragm driving mechanism that drives the diaphragm, a diaphragm position detection device which calculates the opening diameter of the diaphragm from the standard opening diameter and transmits the op...
06/16/1998
5485236Camera
A camera is provided with an object distance measuring sensor for detecting an object distance, an object brightness measuring sensor for detecting an object brightness, a photographing lens, a position of which along an optical axis is variably set, and ...
01/16/1996
4831400Stop-down signal adjusting circuit in automatic aperture control camera
The oscillation wave signal generated during lens stop-down is amplified by an adjustable gain amplifier the gain of which is controlled in accordance with the peak value of the oscillation wave signal detected during a predetermined time period, to there...
05/16/1989
4727389Automatic focus and exposure controlled camera
An electrically operated camera is operated automatically from between far-focus and near-focus lens settings responsively to ambient light sensings. The far-focus lens setting is less than infinity. Under strong lighting conditions, the aperture is autom...
02/23/1988
4693584Diaphragm controller for cameras in which the diaphragm opening is selected in accordance with a preprogrammed characteristic
A diaphragm controller for a camera of the program type which determines a reduced aperture in accordance with the brightness of an object being photographed and effects a diaphragm control based on an exposure period corresponding to the reduced aperture...
09/15/1987
4600289Aperture control system for cameras
An aperture control system comprises compensating means for actuating an electromagnetic latch mechanism at an earlier time to compensate errors in controlled aperture values due to the mechanical time delay in the electromagnetic latch mechanism, and mea...
07/15/1986
4579439Automatic stop control circuit for camera
An automatic stop control circuit is so constructed that in a period wherein the photo metering output signal is adversely affected by a counter electromotive pulse generated during the operative period of the electromagnetic release device for camera rel...
04/01/1986
4460253Electromagnetically driven diaphragm device
In the disclosed diaphragm device, an electromagnetic unit is composed of two opposing sets of circularly arranged magnets poled so that opposing surfaces have the same polarity, a rotary member carrying an electromagnetic coil that moves the rotary membe...
07/17/1984
4429972Single lens reflex camera having an electro-magnetic device
A droppage in a power source voltage below a prescribed value is prevented by using an electro-magnetic device of low power consumption type in a single lens reflex camera, and at the same time when the power source voltage is lower than the prescribed va...
02/07/1984
4392727Camera exposure control devices with smoothing circuit
A controlling device that determines the diaphragm aperture of the camera in accordance with an output of a light measuring circuit, which detects a light from an object to be photographed being illuminated by a light which includes an alternatingly chang...
07/12/1983
4381889Camera diaphragm aperture control device
An electromechanical device such as a camera diaphragm control device includes a compensation means which compensates for a time lag from generation of a stop signal to actual stoppage of a movable member such as a diaphragm or a diaphragm drive member. T...
05/03/1983
4358191Exposure rate controlling mechanism for camera
An exposure rate controlling mechanism for a camera comprising an iron member controlled to move to more than three attracted/departed positions by an electromagnet and a mechanism for controlling the exposure rate corresponding to the position to which t...
11/09/1982
4355875Automatic diaphragm control device for cameras
An automatic diaphragm control device is constructed such that energization of a release electromagnetic causes a release interlock mechanism to simultaneously release diaphragm stop means and a diaphragm operating mechanism. This allows the diaphragm sto...
10/26/1982
4307948Diaphragm control apparatus for camera
A diaphragm control apparatus for camera comprises a correcting circuit for correcting error in aperture stopping-down caused by a time lag from the generation of a signal for blocking the aperture stopping-down motion to the actuation of a blocking devic...
12/29/1981
4288150Diaphragm control device for cameras
A diaphragm control device of the type which performs TTL light measurement while stopping-down a diaphragm is constructed to automatically determine the diaphragm aperture by comparing an approximate signal with a reference signal to minimize the diaphra...
09/08/1981
4212000Position-to-digital encoder
A position-to-digital encoder for generating digital signals in the form of binary code in accordance with the relative positions between a pair of brush contacts and a series of contacts arranged in order. The latter contacts are disposed in a row along ...
07/08/1980
4194820Spring servo type aperture control device in a camera
A spring servo type aperture control device in a camera having mounted thereon a lens comprises: an aperture mechanism including an aperture blade and determining the aperture by varying the position of said aperture blade, an aperture lever connected to ...
03/25/1980
4179202Diaphragm aperture control device in a camera
An automatic diaphragm aperture control device used with a camera having an objective lens, a diaphragm having a diaphragm aperture, a shutter mechanism and a shutter speed selecting mechanism. The diaphragm control device includes: means for stopping dow...
12/18/1979
4161354Top shutter curtain release mechanism for an automatic aperture value control camera
An automatic camera of the aperture control type wherein the lens stopping operation is carried out by detecting the variation in light quantity due to the lens stopping operation. The finder viewing mirror is raised when the light measurement is carried ...
07/17/1979
4146318Automatic diaphragm control
A process for controlling the closure of a diaphragm includes measuring the light intensity with the diaphragm fully open and memorizing a value related to the correct diaphragm opening. The diaphragm is then progressively closed while sensing the intanta...
03/27/1979
3996593Exposure control device in a camera
A method and apparatus for automatic iris control of cameras having an exposure value indicator located within the camera's viewfinder. The indicator emits light such that a photosensor when moving over the indicator face, senses the light and through ass...
12/07/1976
3988749Device for automatic diaphragm setting in photographic cameras
An automatic diaphragm control for camera lenses having independent diaphragm and shutter speed rings in which a reversible motor is positioned to drive the diaphragm ring, and a gear engaging the diaphragm ring drives a potentiometer. A light-sensor is i...
10/26/1976
3987460Automatic diaphragm aperture control
An automatic diaphragm aperture control device for use in a camera for controlling the setting of the diaphragm with a high degree of accuracy. The diaphragm is adapted to be stopped down in association with the releasing operation of a shutter. During th...
10/19/1976
3952316Automatic diaphragm aperture control device for photographic camera
In a photographic camera which controls a diaphragm aperture to an optimum aperture automatically, wherein the light from a photographic object which has been transmitted through an objective lens and a diaphragm aperture is measured by means of a light m...
04/20/1976
3950767Camera indicating device with diaphragm control
An indicating device for producing a warning indication of possible over or under exposures in an automatic exposure adjusting device in a photographic camera. The brightness of light rays from a photographic object which are transmitted through a diaphra...
04/13/1976
 
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