Lens moving device
Patent 4707083 Issued on November 17, 1987. Estimated Expiration Date: 
September 20, 2005. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 20, 2005. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesObjective system with zoom lens for motion picture cameras Shock absorbent shifting device Zoom lens operating mechanisms Patent #: 4533218 InventorsAssigneeApplicationNo. 06/778381 filed on 09/20/1985US Classes:359/700, Cam groove type359/823With axial adjustment (e.g., adjustable focus, etc.)ExaminersPrimary: Corbin, John K.Assistant: Ben, Loha Attorney, Agent or FirmInternational ClassG02B 7/04 (20060101)Foreign Application Priority Data1984-09-29 JPAbstractA lens moving device having an axially movable or rotatable sleeve fitted in a fixed sleeve, helix-like camming slot and groove formed respectively through the wall of the movable sleeve and in the inner surface of the fixed sleeve, and a guide pin radially extending from a lens cell into a cross point of the slot and groove, whereby the side edges of each of the helix-like camming slot and groove are made tapered surfaces, and the guide pin in the form of a singlet member or a plurality of concentric members is shaped to a truncated cone in contacting portions with the tapered surfaces of the slot and groove. | |
