Radiological installation with adjustable transmission optical attenuator
Patent 4749257 Issued on June 7, 1988. Estimated Expiration Date: 
April 16, 2006. 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.
April 16, 2006. 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 3622786 X-ray diagnostics installation comprising an electronic transmission channel for the X-ray image Method of and apparatus for adjusting an image intensifier chain X-Ray examination apparatus X-Ray diagnostic installation Radiodiagnostic system with a flat picture intensifier X-ray television diagnostic apparatus Patent #: 4612572 InventorApplicationNo. 06/852705 filed on 04/16/1986US Classes:349/1, LIQUID CRYSTAL SYSTEM349/25, With photoconductive layer (e.g., spatial light modulator(SLMs))378/98.2, Televison378/98.3With visible light opticsExaminersPrimary: Miller, Stanley D.Assistant: Phan, Trong Attorney, Agent or FirmInternational ClassesH05G 1/64 (20060101)H05G 1/00 (20060101) G03B 42/02 (20060101) G03B 7/28 (20060101) Foreign Application Priority Data1985-04-19 FRAbstractA radiological installation with dynamic compensation in the optical path of the image, with an optical attenuator with locally adjustable transmission placed at least in the vicinity of a focal plane in which the radiological image is formed situated upstream of the television camera of the image acquisition chain.Other References
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