Photographic camera with electrical exposure meter

Claim 1

IN A PHOTOGRAPHIC CAMERA OF THE TYPE INCLUDING AN EXPOSURE METER INCORPORATING AN ELECTRICAL MEASURING INSTRUMENT HAVING AN INDICATOR WHOSE DEFLECTION IS CONTROLLED BY THE SETTING OF A FIRST EXPOSURE FACTOR TO PROVIDE AN INDICATION FOR CONTROLLING THE SETTING OF A SECOND EXPOSURE FACTOR, AND INCLUDING A PLURALITY OF PHOTO-SENSITIVE ELEMENTS OPERATIVELY ASSOCIATED WITH THE MEASURING INSTRUMENT AND EXPOSED TO INCIDENT LIGHT, WITH EACH ELEMENT BEING ADAPTED TO CONTROL THE CURRENT SUPPLIED BY ITSELF TO THE MEASURING INSTRUMENT IN ACCORDANCE WITH THE LIGHT INCIDENT ON THE ELEMENT, AND MEANS FOR SWITCHING THE PHOTO-SENSITIVE ELEMENTS INTO AND OUT OF CIRCUIT CONNECTION WITH THE MEASURING INSTRUMENT IN ACCORDANCE WITH THE SETTING OF SUCH FIRST EXPOSURE FACTOR; THE IMPROVEMENT COMPRISING, IN COMBINATION, A FIRST SETTING DEVICE MOVABLE RELATIVE TO AN ADJACENT FIXED SURFACE OF THE CAMERA FOR SETTING SAID FIRST EXPOSURE FACTOR; A PLURALITY OF CONTACTS MOUNTED ON SAID ADJACENT FIXED SURFACE IN ALIGNED SPACED RELATION ALONG THE PATH OF MOVEMENT OF SAID FIRST SETTING DEVICE; A CONTACT STRIP ON SAID FIRST SETTING DEVICE ELONGATED IN THE DIRECTION OF MOVEMENT OF THE LATTER AND ALIGNED WITH SAID CONTACTS, THE LENGTH OF SAID CONTACT STRIP BEING SUFFICIENT TO SPAN ALL OF SAID CONTACTS WHEREBY TO ENGAGE AND INTERCONNECT A NUMBER OF SAID CONTACTS INCREASING WITH MOVEMENT OF SAID FIRST SETTING DEVICE IN ONE FIRST EXPOSURE FACTOR SETTING DIRECTION AND DECREASING WITH MOVEMENT OF SAID FIRST SETTING DEVICE IN THE OPPOSITE FIRST EXPOSURE FACTOR SETTING DIRECTION; MEANS CONNECTING SAID INSTRUMENT IN SERIES BETWEEN ONE OF SAID CONTACTS AND ONE TERMINAL OF EACH OF SAID ELEMENTS; AND MEANS CONNECTING THE OTHER TERMINAL OF EACH ELEMENT TO A RESPECTIVE ONE OF THE OTHER OF SAID CONTACTS; WHEREBY THE NUMBER OF ELEMENTS SELECTIVELY CONNECTED TO SAID INSTRUMENT WILL BE VARIED IN ACCORDANCE WITH THE SETTING OF SAID FIRST SETTING DEVICE.