Invention Grant
- Patent Title: Hollow core waveguide for laser generation of ultrasonic waves
- Patent Title (中): 用于激光产生超声波的空心波导
-
Application No.: US12121559Application Date: 2008-05-15
-
Publication No.: US07734133B2Publication Date: 2010-06-08
- Inventor: Marc Dubois , Thomas E. Drake, Jr. , Mark A. Osterkamp
- Applicant: Marc Dubois , Thomas E. Drake, Jr. , Mark A. Osterkamp
- Applicant Address: US MD Bethesda
- Assignee: Lockheed Martin Corporation
- Current Assignee: Lockheed Martin Corporation
- Current Assignee Address: US MD Bethesda
- Agency: Bracewell & Giuliani LLP
- Main IPC: G02B6/26
- IPC: G02B6/26 ; G02B6/42 ; G02B6/32 ; G01N9/24 ; G01N29/00 ; G01H11/00 ; G01N24/00 ; G01N29/04

Abstract:
A laser transmission system is used for inspecting workpieces. The system has a source of laser beams that is coupled to a first lens assembly. A first hollow core waveguide is operably coupled to the first lens assembly. An end of an optical fiber coupled to the first hollow core waveguide. A second hollow core waveguide is coupled to the other end of the optical fiber. A second lens assembly operably coupled to the second hollow core waveguide. The length of the hollow core waveguides range from about 5 to 100 times the focal lengths of the lens assemblies. A motion control system is operably coupled to the second hollow core waveguide and the second lens assembly for controllably displacing the second hollow core waveguide and the second lens assembly with respect to a workpiece.
Public/Granted literature
- US20090285523A1 HOLLOW CORE WAVEGUIDE FOR LASER GENERATION OF ULTRASONIC WAVES Public/Granted day:2009-11-19
Information query