Kinematic mounting structure for laser resonator

Claim 1

IN COMBINATION WITH A LASER OF THE TYPE HAVING AN ELONGATED ACTIVE MEDIUM AND AN OPTICAL ELEMENT AT EACH END OF THE ACTIVE MEDIUM FOR REFLECTING ENERGY BACK INTO THE LONGITUDINAL ENDS OF THE ACTIVE MEDIUM, A SUPPORTING STRUCTURE FOR SAID OPTICAL ELEMENTS COMPRISING AN ELONGATE RIGID MEMBER, MEANS MOUNTING SAID OPTICAL ELEMENTS ON SAID RIGID MEMBER, A STRUCTURE CIRCUMSCRIBING SAID RIGID MEMBER, AND MEAN FOR MOUNTING SAID RIGID MEMBER WITHIN SAID CIRCUMSCRIBING STRUCTURE, SAID LAST-NAMED MOUNTING MEANS COMPRISING FIRST, SECOND AND THIRD SPACED APART BEARING MEMBERS FORMING THE CONNECTIONS BETWEEN SAID RIGID MEMBERS AND SAID CIRCUMSCRIBING STRUCTURE, EACH SAID BEARING MEMBER HAVING AN ASSOCIATED AXIS AND BEING ARRANGED TO RESIST MOVEMENT OF SAID RIGID MEMBER RELATIVE SAID CIRCUMSCRIBING STRUCTURE ONLY IN DIRECTIONS NORMAL TO THE ASSOCIATED AXIS, SAID FIRST AND SECOND BEARING MEMBERS BEING ORIENTED WITH THEIR ASSOCIATED AXES GENERALLY PARALLEL TO THE LONGITUDINAL AXIS OF SAID RIGID MEMBER, SAID THIRD BEARING MEMBER BEING ORIENTED WITH ITS AXIS TRANSVERSELY OF THE LONGITUDINAL AXIS.