Abstract: A shutter device with a shutter base plate having an aperture part and a protruding part. First and second shutter blade members are arranged to travel a predetermined movement distance and a distance shorter than the predetermined distance, respectively, over the aperture part. The second shutter blade member has a slot engaging the protruding part of the base plate. First and second arm members are pivotally supported by the shutter base plate and the second arm member supports the first and second shutter blade members in a swingable manner.

Abstract: Disclosed are shutter apparatus provided with a shutter base plate having a shutter aperture, a first arm member which rotates around a center of rotation at a first axis, relative to the shutter base plate, a second arm member which rotates around a center of rotation at a second axis, relative to the shutter base plate, and a plurality of shutter blades, wherein each of the plurality of shutter blades is coupled to the first and second arm members, wherein the first and second arm members rotate around their respective axes whereby the plurality of shutter blades run over the shutter aperture, wherein each shutter blade has a blade main body portion extending in a direction perpendicular to a running direction thereof, and wherein a first shutter blade with a smallest running travel comprises a light shielding portion projecting in the running direction on the coupling portion side to the first and second arm members and arranged to effect light shielding of the shutter aperture, and also disclosed are shut

Abstract: A shutter device includes a shutter base plate having a shutter aperture, a plurality of shutter blades, and an arm member arranged to swing on a predetermined shaft provided on the shutter base plate. The arm member is connected to each of the plurality of shutter blades to cause the shutter blades to travel over the shutter aperture when the arm member swings on the shaft.

Abstract: A light flux deflecting device includes a light flux deflecting unit displacable along a predetermined plane for deflecting light flux, and a support unit for supporting the light flux deflecting unit in such a manner as to allow the light flux deflecting unit to move in a direction along the plane, but to restrain the light flux deflecting unit from moving in a direction vertical to the plane. The support unit includes a support portion comprising (1) at least three hinge portions having short sides arranged to lie in the direction along the plane, and (2) rigid members each positioned between two adjacent hinge portions and having a predetermined width in the direction along the plane.

Abstract: A camera and a cartridge indicator setting apparatus adapted to a film cartridge including an indicator operatively coupled to a film supply spool provided in the film cartridge. The camera and the cartridge indicator setting apparatus includes a storage device which stores information to be indicated by the indicator of the film cartridge; and a setting device for driving, in response to an operation for ejecting the film cartridge which has been loaded on the camera, the film supply spool of the film cartridge which has been stopped after completion of rewinding of a film, and for setting the indicator of the film cartridge in accordance with the information stored by the storage device.

Abstract: A shutter device includes a shutter base plate having an aperture part and a protruding part, a first shutter blade member arranged to travel a predetermined movement distance over the aperture part, a second shutter blade member arranged to travel a movement distance shorter than the predetermined movement distance of travel of the first shutter blade member over the aperture part, the second shutter blade member having a slot engaging the protruding part, a first arm member having one end part thereof pivotally supported by the shutter base plate and another end part thereof supporting the first shutter blade member in a swingable manner, and a second arm member having one end part thereof pivotally supported by the shutter base plate and another end part thereof supporting the first shutter blade member in a swingable manner, the second arm member being connected to the second shutter blade member, wherein the first shutter blade member and the second shutter blade member are caused to travel over the aper

Abstract: A camera and a cartridge indicator setting apparatus adapted to a film cartridge including an indicator operatively coupled to a film supply spool provided in the film cartridge. The camera and the cartridge indicator setting apparatus includes a storage device which stores information to be indicated by the indicator of the film cartridge; and a setting device for driving, in response to an operation for ejecting the film cartridge which has been loaded on the camera, the film supply spool of the film cartridge which has been stopped after completion of rewinding of a film, and for setting the indicator of the film cartridge in accordance with the information stored by the storage device.

Abstract: An image display apparatus includes a storage display element having a screen portion which receives image light from its back side and stores and displays an image, and a light blocking mechanism. The light blocking mechanism is capable of being switched over between a light-blocked state in which the light blocking mechanism blocks light incident on the front side of the screen portion of the storage display element to shut off incidence of external light on the screen portion, and an observation-possible state in which the light blocking mechanism unblocks light incident on the front side of the screen portion of the storage display element.

Abstract: The invention relates to a thermosetting coating composition for precoated steel sheets which are required to have high hardness, good workability and stain resistance, to a precoated steel sheet having a film of the coating composition, and to a method for producing such precoated steel sheets.

Abstract: In a camera having a camera body part and a lens barrel part, an optical filter arranged to be rotatable around an axis located inside a lens optical path derived from the lens barrel part (for example, around an axis substantially parallel with an optical axis of the lens barrel part), and a filter rotating part having a drive source (for example, an electric motor) for rotating the optical filter are contained in the camera body part.

Abstract: An image stabilizer including a movable frame that moves in a plane perpendicular to an optical axis to correct image blurring and has a first surface perpendicular to the optical axis and a support frame for movably supporting the movable frame in the plane perpendicular to the optical axis. The support frame includes a predetermined member having a second surface perpendicular to the optical axis and a ball arranged between the first surface and the second surface. The support frame movably supports the movable frame in a plane perpendicular to the optical axis with the ball kept in rolling contact with the first and second surface. The image stabilizer thus suffers small resistance in the shifting movement.

Abstract: A camera comprises a photographing optical system, and a cover for covering the photographing optical system, and the cover is supported turnably about a rotating axis which is neither parallel nor perpendicular to a longitudinal direction of a camera body, and is operative to selectively open and close by turning about the rotating axis. Part of the cover is positioned by coming into abutment with part of a front exterior portion of the camera, so that the cover is held in a predetermined opened state. The cover is provided with a flash device, and when the cover is in an opened state, the flash device is moved away from the photographing optical system so that a red-eye phenomenon is prevented from easily occurring.

Abstract: A camera is capable of forming different photographic image plane frames by causing a light blocking member which is movable in at least a photographic optical path to block part of a photographic light flux. The camera is provided with an urging member for imparting an urging force to the light blocking member, the direction of the urging force being changed when the light block member is located at a particular position in its movement course, a switching member arranged to switch its state at a point in a process in which the light blocking member moves from its maximum retracted position where the smallest amount of light flux is blocked to the particular position, and a display member for visually displaying the state of movement of the light blocking member, i.e., which of the photographic image plane frames has been formed, in accordance with the state of the switching member.

Abstract: An apparatus adapted for use with a camera including a camera body and an independent optical viewfinder. The apparatus includes a following device that drives a photographing field of the camera body to follow a viewfinder field of the optical viewfinder.

Abstract: A throttle body assembly for supplying a mixture of fuel and air to an intake port of an internal combustion engine, integrally incorporating a fuel injection valve, a fuel pump, a fuel supply passage defined in the throttle body and extending from the fuel pump to the fuel injection valve, and a fuel pressure control valve directly incorporated in the throttle body to control pressure of fuel in the fuel supply passage. Thus, there is no need to use an external tubing system for supplying and returning fuel to and from the fuel injection valve, and the throttle body assemby may be simplified in structure so as to facilitate the assembling and servicing of the throttle body assembly. Further, an electronic control unit and sensors associated with the control unit are both directly mounted on the throttle body so that wiring around the throttle body may be eliminated.

Abstract: An output correction method for a proportional-output type O.sub.2 sensor including an oxygen concentration detecting element formed by an oxygen-pumping element and a cell element, each of the oxygen-pumping element and the cell element being composed of a wall of a solid electrolytic material having oxygen ion-conductivity, and a pair of electrodes having the wall interposed therebetween. The oxgen-pumping element is supplied with an output voltage corresponding to a difference between a voltage developed between the electrodes of the cell element and a predetermined reference voltage, and current flowing in the oxygen-pumping element is detected. A correction resistance supplies information indicative of a deviation of an air-fuel ratio detected by the sensor with respect to a predetermined reference air-fuel ratio. A correction value is determined on the basis of the information and the direction of flow of the current. The detected current is corrected by the use of the determined corrected value.

Abstract: A shutter for a camera having leading and trailing blade groups movably interposed in between a plurality of plate-shaped members each of which having a shutter aperture, each of the blade groups including a plurality of divided blades, is provided with a protruding part which is formed along the edge of the shutter aperture in a slanting and outwardly protruding manner. This protruding part prevents the blade groups from being damaged by the impact of collision of them with the edge of the shutter aperture even when they travel in a state of being warped to the outside of a normal blade moving area by an external force.

Abstract: An oxygen concentration-sensing device has an oxygen concentration-sensing element which senses the concentration of oxygen contained in a gas, and a heater which heats the sensing element. A control device is electrically connected to the heater for controlling the supply of electricity to the heater so as to bring the temperature of the heater to a desired temperature. A coupler connects between the sensing element and the control device. A compensating resistance is accommodated in the coupler, which has a resistance value corresponding to a resistance value of the heater assumed at the desired temperature. The control device controls the supply of electricity to the heater based upon electrical information obtained from the compensating resistance.