Control mechanism for the axial displacement of components of photographic or cinematographic objectives and the like

• US 3,095,750 A
• Filed: 12/06/1960
• Issued: 07/02/1963
• Est. Priority Date: 12/12/1959
• Status: Expired due to Term

• Current Assignee: Herbert Mahn
• Original Assignee: Herbert Mahn
• Inventors: Mahn, Herbert
• Application Number:
  US04/074,118
• Time in Patent Office: 938 Days
• US Class Current: 74/107
• CPC Class Codes: G02B 7/10 by relative axial movement of several lenses, e.g. of varifocal objective lens
• CPC Class Codes: Y10T 74/18296 Cam and slide
• CPC Class Codes: Y10T 74/18888 Reciprocating to or from oscillating
• CPC Class Codes: Y10T 74/1896 Cam connections
• CPC Class Codes: Y10T 74/20012 Multiple controlled elements
• CPC Class Codes: Y10T 74/20636 Detents
• CPC Class Codes: Y10T 74/20642 Hand crank
• CPC Class Codes: Y10T 74/2084 Knob or dial
• CPC Class Codes: Y10T 74/20882 Rocker arms

Claims

1. A CONTROL MECHANISM FOR AN OPTICAL SYSTEM HAVING AT LEAST ONE COMPONENT DISPLACEABLE ALONG THE OPTICAL AXIS OF THE SYSTEM, COMPRISING A HOUSING FOR SAID SYSTEM, A STUD ON SAID HOUSING EXTENDING GENERALLY TRANSVERSELY TO SAID AXIS, A KNOB ROTATABLE ON SAID STUD WITH FREEDOM OF DISPLACEMENT THEREON BETWEEN A FIRST AND A SECOND AXIAL LOCATION, CO-OPERATING INDEXING MEANS ON SAID HOUSING AND SAID KNOB EFFECTIVE IN SAID FIRST AXIAL LOCATION FOR YIELDABLY ARRESTING THE LATTER IN A SELECTED ONE OF SEVERAL ANGULAR POSITIONS, SAID INDEXING MEANS BEING INEFFECTUAL IN SAID SECOND AXIAL LOCATION, AN AXIALLY FIXED