Telecentric imaging system optical inspection machine using the same and method for correcting optical distortion produced thereby
Patent 5008743 Issued on April 16, 1991. Estimated Expiration Date: 
March 17, 2009. 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.
March 17, 2009. 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 References 3637282 3761184 Noncontacting method and apparatus for monitoring the speed and travel of a moving article Polarizing optical stereoscopic system and eyepiece using triangular prisms Method for determining the angular dimensions of a scene recorded by a video system Picture recording apparatus Patent #: 4851913 InventorsAssigneeApplicationNo. 324716 filed on 03/17/1989US Classes:348/92, Quality inspection348/135, Object or scene measurement359/663Telecentric systemExaminersPrimary: Kostak, Victor R.Attorney, Agent or FirmInternational ClassH04N 007/18Foreign Application Priority Data1988-03-24 ILAbstractA telecentric imaging system includes a Fresnel lens mountable in proximity to an object to be imaged, a source of light for illuminating the object, and an aperture stop located at least in the telecentric imaging system is incorporated into an optical inspection machine which permits optical distortion produced by the telecentric imaging system to be corrected using a look-up table. | |
