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US 2026/0180690 A1Published application
Dual contra-focal homogenizer
AssigneeLaserMotive, Inc.
InventorsThomas J. NUGENT, JR., Sergiy DETS
Life of this patent
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Abstract
A power receiver includes a beam homogenizer that takes portions of a power beam and spreads them to each cover a substantial fraction (or all) of a power converter surface. The beam homogenizer may lack reflective side walls, and may have an aspect ratio as low as 2-5. The normalized deviation of beam irradiance at the surface may be reduced by a factor of 2-5 or more.
Claims37
A beam homogenizer, comprising:
- a compound lens configured to reshape an incident power beam, the compound lens including:
- a first optical surface configured to focus the incident power beam at a focal distance;
- and
- a second optical surface including a plurality of optical elements tiled to substantially cover the second optical surface, wherein:
- each optical element of the plurality is configured to expand a respective portion of the focused power beam toward a light-gathering area;
- and
- the expanded portions of the focused power beam each overlap with one another at the light-gathering area to form a homogenized power beam.
4 more elements
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A method of homogenizing a power beam, comprising:
- receiving an incident power beam;
- splitting the received beam into a plurality of beam portions;
- and
- directing each beam portion toward a beam target area, wherein:
- directing each beam portion includes changing the size of the beam portion at the target area to a selected size;
- and
- the plurality of beam portions overlap with one another at the target area.
4 more elements
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Dependencies are inferred from the claim text.