Three dimensional colour imaging

Details Three dimensional colour imaging Three dimensional colour imaging

Category

G - Physics

Subcategory

01

Subsubcategory

J

IPC codes

G01J 3/46 (2006.01) G01B 11/24 (2006.01) G01S 17/89 (2006.01)

Type

Patent

Patent number

CA 2043336

Description

Three dimensional digital imaging of the profile of a surface of an object is improved to include the collection of data on the color of the surface, this result being achieved with only minor changes to a monochromatic 3-D camera and without the complications of multiple detectors or multiple color filters. The surface is scanned with an incident beam of light that contains a plurality of wavelengths including at least one well defined wavelength, e.g. either three well defined wavelengths corresponding respectively to the primary colors, or a continuum of visible light plus one well defined wavelength outside such continuum. The return beam that is analyzed to generate the digital profile data is dispersed into a plurality of separate return beams according to wavelength, the relative intensities of such separate return beams providing the color data.

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