Photographic flash apparatus

Claim 1

ELECTRONIC PHOTOGRAPHIC FLASH APPARATUS HAVING AN ELECTRONIC FLASHTUBE MEANS WHOSE ELECTRICAL IMPEDANCE IS MATCHED OF THE ELECTRICAL POWER SUPPLY CIRCUIT MEANS AND WHOSE PHYSICAL DIMENSION IS MATCHED TO A REFLECTOR TO PRODUCE A CONE OF LIGHT MATCHING THE VIEWING ANGLE OF A PHOTOGRAPHIC CAMERA, THE APPARATUS COMPRISING: ELECTRICAL POWER SUPPLY CIRCUIT MEANS, AN ELONGATED LIGHT REFLECTOR HAVING AN ELONGATED CONCAVE SURFACE OF CURVATURE FORMING A LIGHT CONTROLLING MEANS TO CONTROL THE SPREAD OF THE CONE OF LIGHT IN A FIRST DIRECTION, A LIGHT CONTROLLING REFLECTIVE BARRIER MEMBER POSITIONED WITHIN SAID REFLECTOR TO DIVIDE SAID REFLECTOR INTO TWO SAPCED SECTIONS, SAID LIGHT CONTROLLING MEMBER FORMING A LIGHT CONTROLLING MEANS TO CONTROL THE SPREAD OF THE CONE OF LIGHT IN A DIRECTION GENERALLY ALONG A SECOND DIRECTION WHICH IS NORMAL TO SAID FIRST DIRECTION, SAID ELECTRONIC FLASHTUBE MEANS BEING MOUNTED WITHIN SAID REFLECTOR AND HAVING FIRST AND SECOND LIGHT PRODUCING ARC LENGTHS ASSOCIATED IN LIGHT EMITTING RELATIONSHIP WITH EACH OF SAID TWO SECTIONS OF SAID LIGHT REFLECTOR, SAID FLASHTUBE MEANS HAVING NON-LIGHT PRODUCING CURRENT CONDUCTING MEANS MOUNTED WITHIN SAID BARRIER MEMBER TO ALLOW ELECTRICAL ENERGY TO PASS BETWEEN SAID TWO ARC LENGTHS IN THE VICINITY OF SAID BARRIER MEMBER, AND CIRCUIT MEANS CONNECTING SAID FLASHTUBE MEANS TO SAID POWER SUPPLY CIRCUIT MEANS.