US Patent No: 7,382,471
Number of patents in Portfolio can not be more than 2000
Non-contact apparatus and method for measuring surface profile
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Jun 3, 2008
Issued date -
Dec 22, 2005
filing date -
11/313,671
serial no -
In Force
status
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Abstract
Embodiments of the invention provide a non-contact method for measuring the surface profile of an object that can include generating a point-type optical signal and projecting it on a rotatable precision optical grating, generating a rotating pattern of light and dark lines onto the object, recording a series of images of the rotating pattern moving across the object with an image receiving device and calculating the surface profile of the object. Other embodiments can include a method to calibrate the system and a non-contact apparatus that generally includes a point-type light source, a rotatably mounted optical grating being configured to project a moving grating image on the object, a processor in communication with the image capturing device and configured to receive image input from the image capturing device and generate a surface profile representation of the object therefrom.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 6,084,979 Method for creating virtual reality | 92 | 1996 | |
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| 5,841,894 Three-dimensional detecting method and three-dimensional detecting apparatus | 10 | 1996 | |
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| 6,847,462 Integrated system for quickly and accurately imaging and modeling three-dimensional objects | 26 | 1998 | |
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| 4,480,920 Fringe pattern method and apparatus for producing X-ray dosage compensating filters | 2 | 1983 | |
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| 4,657,394 Apparatus and method for obtaining three dimensional surface contours | 64 | 1985 | |
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| 4,952,149 Process and apparatus for taking a medical cast | 43 | 1988 | |
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| 5,029,243 Device for working a workpiece using laser light | 21 | 1989 | |
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| 4,895,448 Method and apparatus for determining the surface quality of an object | 18 | 1988 | |
| 5,289,264 Method and apparatus for ascertaining the absolute coordinates of an object | 45 | 1992 | |
Patent Citation Ranking
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