Optical scanning holography system
AssigneeCubixel Co., Ltd.
InventorTae Geun KIM
Life of this patent
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Abstract
An optical scanning holography system includes a polarization-sensitive lens configured to receive a linearly polarized beam and generate a first spherical wave of right-handed circular polarized light having a negative focal length and a second spherical wave of left-handed circular polarized light having a positive focal length, a first polarizer configured to pass only a beam component therethrough in a predetermined polarization direction among components of the generated first and second spherical waves, a scanning unit configured to scan an object by using an interference beam generated between the first and second spherical waves passing through the first polarizer, and a first photodetector configured to detect a beam reflected from the object.
Claims4
A geometric phase in-line scanning holography system comprising:
- a polarization-sensitive lens configured to receive a linearly polarized beam and generate a first spherical wave of right-handed circular polarized light having a negative focal length and a second spherical wave of left-handed circular polarized light having a positive focal length;
- a scanning unit configured to scan an object by using an interference beam generated between the generated first spherical wave and the generated second spherical wave;
- a first beam splitter configured to receive a beam reflected from the object and split the reflected beam into a first output beam and a second output beam;
- a first polarizer and a second polarizer configured to polarize the first output beam and the second output beam, respectively;
- and
- a first photodetector and a second photodetector configured to detect the output beams passing through the first polarizer and the second polarizer, respectively.
The geometric phase in-line scanning holography system of claim 11, wherein the polarization-sensitive lens is configured with a geometric phase lens.
Dependencies are inferred from the claim text.