Abstract: There is provided a distance measuring apparatus in lens-shutter type camera provided with a photographic lens, a focal length of the photographic lens being variable.

Abstract: There is provided a distance measuring apparatus in a lens-shutter type camera provided with a photographic lens, a focal length of the photographic lens being variable.

Abstract: There is provided a distance measuring apparatus in a lens-shutter type camera provided with a photographic lens, a focal length of the photographic lens being variable.

Abstract: A photometric operation system of a camera includes a photographing lens with a variable focal length. A plurality of photometering devices independently receive and detect rays of object light within a plurality of photometering areas of different sizes. A calculator determines the brightness of an object in accordance with the photometric data supplied from the photometering devices. A smaller photometering area is contained in the larger photometering area. The photometric data is weighted in accordance with the focal length of the photographing lens in the calculation of the object brightness by the calculator devices.

Abstract: There is provided a distance measuring apparatus in a lens-shutter type camera provided with a photographic lens, a focal length of the photographic lens being variable.

Abstract: A camera which includes a camera body, a rear cover, and a diopter adjusting mechanism having a diopter adjustment lens for a finder optical system, including: a diopter adjustment knob provided on the rear cover; a transmission member connected to the diopter adjustment knob so as to relatively move in the direction along the axis of rotation of the knob and not to relatively rotate thereto ; a biasing spring which biases the transmission member to project toward the camera body side; a lens association rotation member which is supported by the camera body so as to rotate about an axis identical to the axis of the knob and which moves the diopter adjustment lens in the optical axis direction, in accordance with the rotation of the lens association rotation member; and at least one rotation transmission projection and recess provided on one and the other of the transmission member and the lens association rotation member; the transmission member projects to a projected position close to the camera body when t

Abstract: In a waterproof lens barrel in which a water-tight movable barrel which moves in the optical a is direction includes inner and outer cylinders, and a space between the inner and outer cylinders is sealed by an annular seal member, the annular seal member is held by a seal member holding ring separate from the inner cylinder or the outer cylinder. The seal member holding ring is inserted in the outer cylinder, wherein the annular seal member is brought into elastic contact with the inner surface of the outer cylinder. The inner cylinder is fitted in and secured to the outer cylinder, wherein the seal member holding ring is located in front of the inner cylinder.

Abstract: A distance measuring apparatus in a lens-shutter type camera is provided with a photographic lens having variable focal length. The device includes a pair of image forming lenses each forming a subject image, a pair of line sensors on which the subject images are respectively formed through the pair of image forming lenses, the pair of line sensors each having a plurality of light receiving elements. The unit also includes a plurality of light receiving areas formed correspondingly on each of the pair of line sensors, the plurality of light receiving areas each including a predetermined number of the plurality of light receiving elements. The plurality of light receiving areas respectively receive different areas of a corresponding one of the subject images formed by the pair of image forming lenses, and each adjacent pair of light receiving areas of the plurality of light receiving areas overlap each other.

Abstract: A camera has a camera body in which a film is drawn out of a film cartridge to be wound by a film take-up spool positioned in a spool chamber. The camera has a film passage formed in the camera body for guiding the film drawn out of the film cartridge to the spool chamber. The rear surface of the camera body extends substantially in parallel to a plane connecting an axial center of the film take-up spool with an axial center of a cartridge spool of the film cartridge. The film passage is formed such that a surface of the film located in the film passage intersects the plane connecting the axial center of the film take-up spool with the axial center of the cartridge spool.

Abstract: A viewfinder has an objective optical system and an eyepiece optical system. The viewfinder includes a supporting member which supports at least a part of either the objective optical system or the eyepiece optical system. The viewfinder further includes a hollow member provided separately from the supporting member. The hollow member is positioned in an optical path of the viewfinder such that a focal plane of the objective optical system is located in the hollow member. The viewfinder further includes a first transparent member secured to one end of the hollow member so as to face toward the objective optical system, and a second transparent member secured to another end of the hollow member so as to face toward the eyepiece optical system. An enclosed space in which the focal plane is located is formed by the first transparent member, the second transparent member and the hollow member.

Abstract: A zoom lens camera includes a whole unit moving device to move a front lens group and a rear lens group together as a whole in an optical axis direction, and a relative moving means to vary a distance between the front lens group and the rear lens group. The whole unit moving means is driven during a zooming operation, and at least the whole unit moving means or the relative moving means is driven during a focusing operation to focus on a subject to be photographed.

Abstract: A multi-point object distance measuring device which includes a plurality of object distance measuring areas, and a detecting device for detecting the amounts of defocus or distances of objects in the plurality of object distance measuring areas. The plurality of object distance measuring areas are disposed in a manner such that at least two object distance measuring areas of the plurality of object distance measuring areas partially overlap each other.

Abstract: A camera having a focusing lens measures one of a distance to an object to be photographed and a defocus amount of an image of the object. The camera drives the focusing lens in accordance with the measured distance or defocus amount. The camera determines an exposure value of the object to be photographed, and judges whether the measured distance or defocus amount satisfies a predetermined condition. If the predetermined condition is not satisfied, then the determined exposure value is increased. The camera then determines an aperture value and a time value for photographing the object based on the increased exposure value and a predetermined algorithm, and takes a photograph of the object.

Abstract: A view finder of a camera, in which images of indication marks are observed through an eyepiece lens in a peripheral light intercepting portion of a field frame of a finder optical system. The view finder includes indicating members provided outside the field frame of the finder optical system. The indicating members have indication marks formed thereon for projection of the images of indication marks. The view finder further includes prisms which are located closer to the eyepiece of the view finder than the indicating members. The prisms have apexes protruding towards an optical axis of the finder optical system, such that light emitted from the indicating members is transmitted through the apexes of the prisms in order to shift the images of the indication marks closer towards the optical axis of the finder optical system.

Abstract: A zoom finder of a camera including a variable power zoom finder optical system and a parallax error compensating optical member that is rotatable between a retracted position and a parallax error compensating position in which the parallax error compensating optical member is in the optical path of the finder. Upon transfer to a macro mode, the parallax error compensating optical member is rotated to the compensating position from the retracted position. The finder is further provided with a snap-action mechanism, wherein an immediate rotation of the parallax error compensating optical member occurs between the compensating position and the retracted position when the parallax error compensating optical member moves beyond a point of instability of the snap-action mechanism in a direction of the compensating position and the retracted position, respectively.

Abstract: A compact camera has a variable focal length photographing optical system, a multisegment photometric system that is separate from the photographing optical system, each segment outputting a brightness level, and a controller that determines an exposure value for exposing a film by using weighting coefficients to calculate a weighted average of the brightness levels outputted by the photometric system. The weighting coefficients vary according to the focal length of the photographing optical system.

Abstract: A view finder of a camera, in which an indication mark is observed through an eyepiece in a peripheral light intercepting portion of a finder optical system field frame. The finder includes a finder body which defines an optical path of the finder optical system. Indicating members within the finder body have indication marks, light emitters emit light for projecting the indication marks, reflecting surfaces which reflect the light towards the indication marks, and receptacles in which the light emitters can be fitted are provided. The light reflecting surfaces and the receptacles are integrally formed with the finder body.

Abstract: An apparatus for adjusting the size of a picture image area and field frame of a view finder in an associated manner. The apparatus includes a picture image area restricting member which is linearly movable into and out of a photographing aperture, a field frame restricting member which is rotatably movable into and out of the field frame, a rotatable operating member for moving the picture image area restricting member, and a driving member which is linearly driven by the rotation of the operating member to rotate the field frame restricting member.

Abstract: A camera is provided having a waterproof and/or water-resistant camera body provided with a stationary lens barrel, a photographing lens barrel which is provided in the stationary lens barrel and moves in the optical axis direction of the camera, and an annular seal member which is provided between the outer periphery of the photographing lens barrel and the inner periphery of the stationary lens barrel. The photographing lens barrel, or at least a surface layer thereof, that is in contact with the annular seal member, is composed of a rustproof material with a hardness of at least Hv150.

Abstract: A remote control apparatus of a camera including a remote control signal receiving element and a remote control mode indicating element provided in the camera body, a plurality of indicating windows on the sides of the camera body, and an optical connector for optically connecting the remote control signal receiving element and remote control mode indicating element to the indicating windows.