Holographic digitizer illuminator with mutually variant wavelengths
AssigneeD4D Technologies, LLC
InventorsJuuso Jalmari Heikkinen, MyeongSoo Kim
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AssigneeD4D Technologies, LLC
InventorsJuuso Jalmari Heikkinen, MyeongSoo Kim
Estimating the term…
Systems and methods for generating multiple mutually variant wavelengths of coherent radiation for three-dimensional imaging of a physical object, such as a tooth, are disclosed. A single radiation source, such as a laser diode, emits coherent electromagnetic radiation. A highly dispersive optical element, such as an echelle diffraction grating, separates radiation having specific wavelengths from the emitted spectrum into distinct beams. Optical components, such as optical masks, mirrors, and lenses, select and orient desired beams to illuminate the object. Small changes in drive current or heatsink temperature of the radiation source similarly affect all wavelengths of the emitted spectrum, so the relative wavelength differences of the desired beams of radiation remain constant. This wavelength stability is useful for synthetic wavelength generation for digital holography and minimizes errors in object shape profile measurements at various scales. Use of a single radiation source also reduces system cost and complexity.
An apparatus for illuminating at least one physical object for holographic imaging, comprising:
A method of illuminating at least one physical object for holographic imaging, comprising:
A computer program product for illuminating at least one physical object for holographic imaging, comprising a non-transitory computer-readable medium with computer-executable instructions tangibly embodied thereon that, when executed by a processor, perform the steps of:
A system for illuminating at least one physical object for holographic imaging, comprising:
Dependencies are inferred from the claim text.