Optical trapping skirt for adjusting the diameter of a beam passing thereof
AssigneeIndustrial Technology Research Institute
InventorsYaomin Lin, Hau-Wei Wang, Chieh-Yi Lo
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Abstract
The invention provides an optical trapping skirt for adjusting the diameter of a beam passing thereof by varying the aperture. The optical trapping skirt has a body of bell shape and an iris diaphragm of bell shape, wherein the iris diaphragm of bell shape is installed inside the body so as to construct a ring like cavity. The undesired portion of the beam, which is incident on the iris diaphragm, is trapped in the ring like cavity and cannot be escaped. The aperture of the iris diaphragm is adjustable, so the diameter of the beam passing the optical trapping skirt is also controllable.
Claims5
An optical trapping skirt for adjusting the diameter of a beam passing thereof, comprising:
- a body comprising a first opening, a second opening larger than the first opening and a sidewall extending from the first opening to the second opening;
- and
- an iris diaphragm comprising an aperture smaller than the first opening, wherein the iris diaphragm of bell shape is installed on the sidewall to construct a ring like cavity.
Dependencies are inferred from the claim text.