Abstract: A method for manufacturing flat or planar batteries wherein a carbon-impregnated polymeric carrier web which is selectively zonally prelaminated with continuous strips of metal ultimately serving current collector purposes is machined to form discrete current collctor subassemblies as an initial step of production. Through the use of select laser cutting, geometries of individual battery elements are maintained. Chemical milling techniques may be utilized for the noted metal removal.

Abstract: An exposure control system for photographic apparatus utilizing motor driven shutter-diaphragm blades in conjunction with a blade sensor which is selectively positioned along the path of blade travel in accordance with an exposure value and which provides a control signal for reversing the blade drive to terminate the exposure interval. In the illustrated embodiment, the sensor is coupled to a comparison photometer and moved along the path of travel of the blades in accordance with photometer setting. Upon initiation of an exposure cycle, the blades are driven from a blocking position through progressively enlarging aperture values until the sensor is actuated by the blades. At this time the control circuitry is triggered to reverse the motor operation thereby returning the blades to a light blocking condition which terminates the exposure interval.

Abstract: An exposure control system for photographic apparatus utilizing pulse driven shutter-diaphragm light regulating elements in conjunction with a follow focus mechanism which in response to the location of the light regulating elements terminates the driving operation thereby automatically selecting an aperture value for flash operation. The follow focus mechanism locates a sensor switch in the path of travel of a pair of aperture defining blades as a function of scene ranging such that the sensor switch is actuated by the blades as the latter are displaced to the selected switch location and, in turn, terminates further pulses to the stepper motor thereby stopping the blades at a predetermined location defining a selected aperture value.

Abstract: A shaft drive and control system for an automatic camera having a plurality of shaft driven devices operable in a photographic cycle at different times and at different speeds, in which the camera has a film pack receiving well, and comprising an electric motor mounted in one end of the camera at one end of the well and coupled to a dual harmonic drive unit that effects a shaft speed reduction to the lowest speed required for camera operation. A cam driven by the output shaft of the harmonic drive unit serves to recock a reflex mirror in the camera. A first shaft speed increasing system including an elongated timing belt extends down the side of the camera from the output shaft of the harmonic drive unit to a shaft driven at an intermediate speed that acts at times to drive a film unit out of the film pack in the well into engagement with a pair of processing rolls.