3-D imaging system
First Claim
Patent Images
1. A 3-D imaging system comprising:
- an optical apparatus having an objective lens;
an image recording device; and
a relay subsystem coupled between the objective lens and the image recording device along an optical axis, the relay subsystem having an aperture element that includes an opening offset from the optical axis placed at the exit pupil.
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Abstract
An active three-dimensional imaging system for optical apparatus includes a relay lens subsystem with an off-axis rotating aperture placed between an imaging or objective lens and an image recording device such as a CCD camera. According to another aspect, the imaging system can include an off-axis rotating aperture located between field and aperture diaphragms of an illumination subsystem. The rotating aperture allows adjustable non-equilateral spacing between images of out-of-focus object points to achieve higher spatial resolution, increased sensitivity and higher sub-pixel displacement accuracy than other systems.
155 Citations
23 Claims
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1. A 3-D imaging system comprising:
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an optical apparatus having an objective lens;
an image recording device; and
a relay subsystem coupled between the objective lens and the image recording device along an optical axis, the relay subsystem having an aperture element that includes an opening offset from the optical axis placed at the exit pupil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A 3-D imaging system comprising:
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an illumination subsystem having an aperture element with an opening offset from an optical axis;
an optical apparatus having an illumination path and an imaging path, the optical apparatus coupled to receive illumination from the illumination subsystem along the illumination path; and
an image recording device coupled to the optical apparatus along the imaging path. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A module for coupling between an optical apparatus and an image recording device, the module comprising:
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a lens group;
an aperture element spaced apart from the lens group along an optical axis, the aperture element including an opening offset from the optical axis. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification