Photographic camera with automatic diaphragm and time settings

Claim 2

A photographic camera with automatic light-controlled settings of diaphragm and exposure time, including a first electronic circuit means for controlling the setting of camera diaphragm means and a second electronic circuit means for controlling the setting of the exposure time, said first and second electronic circuit means being interconnected, the interconnection being that upon actuation of the camera release member, said first circuit means functions first, and said second circuit means commences to function automatically after said first circuit has begun to function.

Claim 3

The photographic camera of claim 1, including: a single photoelectric cell associated with said first and second circuits, said photoelectric cell taking into account the prevailing light conditions; and a transfer switch actuated by means engaged in the release motion of said camera said switch connecting said cell to said second circuit for generating exposure time after said first circuit for controlling the diaphragm setting has completed executing its function.

Claim 4

The photographic camera of claim 2, wherein said first circuit is an electronic flip-flop controlling an electromechanical means which locks in place a setting member of said diaphragm when a specific operating value is obtained, and said second circuit includes RC circuits for generating said exposure time and controls a magnetic locking means for regulating the executing motion of the camera shutter.

Claim 5

The photographic camera of claim 1, wherein said first and second circuits include each one resistor for mutually adjusting the operating value of said circuits, said adjustment causing the setting of diaphragm aperture within the camera diaphragm value range to be always followed by a specific constant exposure time.

Claim 6

The photographic camera of claim 2, including cutoff means situated in front of said photoelectric cell for regulating the amount of light impinging upon said cell, said cutoff means and lens diaphragm setting member including an overtravel path at each end of the camera range for varying the diaphragm aperture, the diaphragm aperture being smallest within one of said overtravel paths and largest within the other of said overtravel paths.

Claim 7

The photographic camera of claim 5 wherein said lens diaphragm and cutoff means include setting members having control slots serving the opening and closing movement of the diaphragm and cutoff means, said slots having at each end an extension concentric with the pivot axis of said setting members.

Claim 8

The photographic camera of claim 4 including a control member for setting different exposure time values associated with the diaphragm operating range, said control member cooperating with several adapting resistors for varying the operating values of said first and second circuits.

Claim 9

The photographic camera of claim 2, including: a variable resistor for setting specific exposure times by means of a manual exposure time setting member, said exposure time setting member having positions corresponding to automatic and manual operation; and switches interconnected with said photoelectric cell to cancel the effects of said cell upon said second circuit when said exposure time setting member is transferred from automatic to manual positions.

Claim 10

The photographic camera of claim 2 including: a diaphragm setting member having positions corresponding to automatic and manual operation; and a switch asSociated with said diaphragm setting member and disconnecting said photoelectric cell from said second circuit when said diaphragm setting member is transferred from automatic to manual positions.

Claim 11

The photographic camera to claim 9 wherein said diaphragm and exposure time setting members include driving means causing either one of said setting members to be transferred to said automatic position when the other one of said setting members is moved to automatic position, said switch for disconnecting said photoelectric cell being actuated by the setting member following up the position of the other member.

Claim 12

The photographic camera of claim 10 including a diaphragm scale driven by said lens diaphragm setting member, and a time scale coupled to said program setting member, said diaphragm and said time scales being visible in the view finder of said camera.

Claim 13

The photographic camera of claim 8 wherein said variable resistor comprises individual stepped resistors.

Claim 14

A photographic camera with automatic light-controlled settings of diaphragm and exposure time, characterized by: a photoelectric cell taking into account the prevailing light conditions; a switch responding to the release motion of said camera and associated with said photoelectric cell; and means for controlling the setting of the diaphragm; means for controlling the generating of exposure time, said switch connecting said photoelectric cell to said means for controlling the generating of exposure time after said means for controlling setting of the diaphragm has completed its function.

Claim 15

A photographic camera with automatic light-controlled settings of diaphragm and exposure time, characterized by: a photoelectric cell taking into account the prevailing light conditions; a switch responding to the release motion of said camera and associated with said photoelectric cell; and means for controlling the setting of the diaphragm; means for controlling the generating of exposure time, said switch connecting said photoelectric cell to said means for controlling the generating of exposure time after said means for controlling setting of the diaphragm has completed its function.

Claim 16

A photographic camera with automatic light-controlled settings of diaphragm and exposure time, characterized by: a diaphragm setting circuit and a time generating circuit; resistors and capacitors interconnected with said circuits for adjusting said circuits mutually to obtain the operating value of said circuits and causing the setting diaphragm aperture with the camera range to be followed by a specific constant exposure time; electromechanical means controlled by said diaphragm setting circuit and locking in place said diaphragm when a specific operating value is reached; and magnetic locking means controlled by said time generating circuit and regulating the executing motion of the camera shutter, said time generating circuit including RC circuits for obtaining the exposure time.

Claim 17

A photographic camera with automatic light-controlled settings of diaphragm and exposure time, characterized by: a diaphragm setting circuit and a time generating circuit; resistors and capacitors interconnected with said circuits for adjusting said circuits mutually to obtain the operating value of said circuits and causing the setting diaphragm aperture with the camera range to be followed by a specific constant exposure time; electromechanical means controlled by said diaphragm setting circuit and locking in place said diaphragm when a specific operating value is reached; and magnetic locking means controlled by said time generating circuit and regulating the executing motion of the camera shutter, said time generating circuit including RC circuits for obtaining the exposure time.

Claim 18

A photographic camera with settings of diaphragm and exposure time controlled by photo resistance means, said camera including a first electronic circuit means for controlling the setting of camera diaphragm means, a second electronic circuit means for controlling the shutter means for setting of the exposure time, said diaphragm means being operable to follow the movements of a camera release member, said diaphragm means being operable to be blocked by electromagnetic locking means controlled by said first electronic circuit for setting of said diaphragm means, and shutter being actuatable for runoff by said second electronic circuit means after said diaphragm means has been set by said first electronic circuit means.

Claim 19

A photographic camera with settings of diaphragm and exposure time controlled by photo resistance means, said camera including a first electronic circuit means for controlling the setting of camera diaphragm means, a second electronic circuit means for controlling the shutter means for setting of the exposure time, said diaphragm means being operable to follow the movements of a camera release member, said diaphragm means being operable to be blocked by electromagnetic locking means controlled by said first electronic circuit for setting of said diaphragm means, and shutter being actuatable for runoff by said second electronic circuit means after said diaphragm means has been set by said first electronic circuit means.