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Three-Dimensional Scanner for Archeological Artifacts patent pending Daniel Hahn, Kevin Baldwin, Donald Duncan Inventors.

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Presentation on theme: "Three-Dimensional Scanner for Archeological Artifacts patent pending Daniel Hahn, Kevin Baldwin, Donald Duncan Inventors."— Presentation transcript:

1 Three-Dimensional Scanner for Archeological Artifacts patent pending Daniel Hahn, Kevin Baldwin, Donald Duncan Inventors

2 Technology – Purpose Obtain 3D data on the scale of 1-50 µm using a non-contact method –Laser scanners bottom out at ~50 µm –White-light interferometers, amongst other techniques, are sub-micron –Profilometers are contact instruments and can get “stuck” on sharp features

3 Technology – Prototype Design Optical Bench Rotary Stage Elevation Stage (stationary) V-block Mount ND Filter Telecentric Lens Camera Projector Telecentric Adaptor Lens Rotated Components Stationary Components

4 Technology – use photometric stereo to measure fine resolution shape (local) Cuneiform tablet Rough sphere

5 Technology – use structured light to measure course resolution shape (global) Cuneiform tablet 3/4 inch

6 Technology – algorithm developed to combine data sets into 3D model Cuneiform tablet 3/4 inch 25 µm xy resolution 2 µm z resolution

7 Technology Applications Can be used to scan any diffusely reflecting object Scalable to achieve wide range of object sizes and resolutions Produces very accurate 3D data set (2 µm z-resolution, 25 µm x,y-resolution)

8 Commercial Applications 3D data on any diffusely reflecting object: –Historical artifacts –Fossils –Gemstones (temporarily painted) –Rocks –Mechanical parts

9 Commercial Opportunities Measurement and recreation of mechanical parts Forensics Archiving / preserving historical artifacts Scientific research

10 Contact Information For technical information contact: Daniel Hahn, Inventor daniel For licensing information contact: Heather Curran, Technology Manager Office of Technology Transfer The Johns Hopkins University Applied Physics Laboratory Johns Hopkins Road Laurel, MD


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