Camera incorporating data recording device

Claim 1

A camera incorporating a data recording device, comprising: a power source on-off switch adapted to be opened and closed in response to the depression of a shutter release button; a shutter control circuit including a first time constant circuit comprising a photoelectric element and a capacitor, a switching circuit, an electromagnet for controlling a shutter closure member, and a circuit for activating said electromagnet; a data carrier; an optical system; a data recording circuit including a light source for exposing data recorded on said carrier, a second time constant circuit for controlling an illumination time duration of said light source, and a switching circuit for intermittently illuminating said light source; and a power source battery connected to both said shutter control and data recording circuits; wherein an output terminal of said electromagnet activating circuit in said shutter control circuit is connected to said switching circuit in said data recording circuit, and upon the depression of the shutter release button, said electromagnet is energized to hold the shutter closure member during a time determined by said first time constant circuit, and thereafter upon the deenergization of said electromagnet, said shutter closure member is released thereby completing shutter operation and a signal is applied from the output terminal of said electromagnet activating circuit to said switching circuit of said data recording circuit, in response to which signal said light source is illuminated for a duration determined by said second time constant circuit whereby the data is recorded on a film to be recorded.