Microlens array, and laser beam hand piece and therapeutic laser device comprising same
AssigneeLutronic Corporation
InventorHee Chul LEE
Life of this patent
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Abstract
A microlens array for converting incident light into a multi-spot beam to focus an object, the microlens array having a plurality of microlenses each having a curved surface forming a predetermined focal length, wherein at least some of the plurality of microlenses have different focal lengths or are different in the height position from which the corresponding curved surface starts.
Claims20
A microlens array for converting incident light into a multi-spot beam to focus an object, the microlens array comprising:
- a plurality of microlenses each having a curved surface forming a predetermined focal length,
- wherein at least some of the plurality of microlenses have different focal lengths or are different in the height position from which the corresponding curved surface starts.
A method of designing a microlens array for converting incident light into a multi-spot beam to focus an object, wherein the shapes and arrangement of the plurality of microlenses are determined such that beam spots formed by the respective microlenses are positioned at a uniform depth within the object.
A laser beam hand piece comprising:
- a lens unit adjusting a spot size of an incident laser beam;
- and
- a microlens array for converting the incident laser beam having a spot size adjusted in the lens unit into a multi-spot beam, and focusing an object, the microlens array including a plurality of microlenses each having a curved surface forming a predetermined focal length, wherein at least some of the plurality of microlenses have different focal lengths or are different in the height position from which the corresponding curved surface starts.
A laser therapeutic device comprising:
- a laser generator;
- a guide arm guiding the laser output from the laser generator;
- a lens unit adjusting the spot size of an incident laser beam;
- and
- a microlens array for converting the incident laser beam having a spot size adjusted in the lens unit into a multi-spot beam, and focusing an object, the microlens array including a plurality of microlenses each having a curved surface forming a predetermined focal length, wherein at least some of the plurality of microlenses have different focal lengths or are different in the height position from which the corresponding curved surface starts.
Dependencies are inferred from the claim text.