Photoflash unit

Claim 1

A PHOTOFLASH UNIT FOR USE WITH A CAMERA AND COMPRISING, IN COMBINATION, A HOLLOW HOUSING MEANS COMPRISING A FIRST HOUSING PORTION AND A SECOND HOUSING PORTION MOVABLY SEPARABLE FROM ONE ANOTHER FOR PROVIDING ACCESS TO THE INTERIOR THEREOF, SAID FIRST HOUSING PORTION INCLUDING AN OPENING THEREIN, AN INTEGRAL REFLECTING UNIT INCLUDING A CONOIDAL REFLECTOR, LIGHT-TRANSMITTING MEANS MOUNTED FOR FULLY CLOSING SAID REFLECTOR, A LIGHT-DIFFUSING ELEMENT HAVING A PORTION THEREOF EXTENDING INTERIORLY OF SAID REFLECTOR ADJACENT THE VERTEX THEREOF, SAID REFLECTING UNIT BEING AFFIXED INTERIORLY OF SAID FIRST HOUSING PORTION WITH SAID LIGHT-TRANSMITTING MEANS IN COVERING RELATION TO SAID OPENING, ONE OF SAID HOUSING PORTIONS INCLUDING AN UPSTANDING ELEMENT MOUNTED INTERIORLY THEREOF, AND AN ELONGATED MEMBER SLIDABLY ENGAGED WITH SAID UPSTANDING ELEMENT FOR MOVEMENT APPROXIMATELY PERPENDICULAR THERETO, SAID ELONGATED MEMBER HAVING AT LEAST ONE OPENING THEREIN, AND MEANS FOR MOVING SAID ELONGATED MEMBER, THE OTHER OF SAID HOUSING PORTIONS INCLUDING MEANS AFFIXED INTERIORLY THEREOF AND SO ENGAGEABLE WITH SAID OPENING IN SAID ELONGATED MEMBER THAT MOVEMENT OF SAID ELONGATED MEMBER IN ONE DIRECTION RETAINS SAID HOUSING PORTIONS IN PREDETERMINED RELATION TO ONE ANOTHER, AND THAT MOVEMENT OF SAID ELONGATED MEMBER IN AN OPPOSITE DIRECTION RELEASES SAID HOUSING PORTIONS FROM SAID PREDETERMINED RELATION.