Flexible laser waveguide
Patent 4045119 Issued on August 30, 1977. Estimated Expiration Date: 
August 30, 1994. 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.
August 30, 1994. 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 3228741 3434776 3455625 3641332 3740113 3814497 InventorAssigneeApplicationNo. 05/586713 filed on 06/13/1975US Classes:385/125, Utilizing nonsolid core or cladding385/142Of waveguide coreExaminersPrimary: Corbin, John K.Assistant: Levy, Stuart S. Attorney, Agent or FirmAbstractA flexible tube filled with a liquid core material for transmitting, by total internal reflections within the tube, laser energy at relatively high power levels from a laser to a desired area of application. The tube and liquid materials are selected to be transparent to light at the wave length of output from the laser, and such that the tube material has a refractive index substantially lower than that of the liquid core material. Also disclosed are a number of liquid materials having highly desirable properties of low toxicity, color stability, low volatility, and compressibility. Various sealing means and input and output windows are disclosed for use at the ends of the tube.Other References
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