公开(公告)号：US10825944B2

公开(公告)日：2020-11-03

申请号：US14263858

申请日：2014-04-28

Applicant: LASERMOTIVE, INC.

Inventor： Jordin T Kare ,  Thomas J. Nugent, Jr. ,  David Bashford

IPC: H01L31/054 ,  G02B17/08 ,  G02B21/04 ,  G02B5/00 ,  G02B19/00 ,  G02B3/08 ,  H02S20/32 ,  H01L31/042 ,  H01L31/052 ,  H01L31/0232 ,  H02S20/00 ,  G01S3/786 ,  F21S11/00 ,  G01S3/78 ,  G02B27/09

Abstract: A device for converting electromagnetic radiation into electricity comprises an expander that includes a conical shape having an axis and a curved surface that is configured to reflect electromagnetic radiation away from the axis to expand a beam of the electromagnetic radiation; and one or more energy conversion components configured to receive a beam of electromagnetic radiation expanded by the expander, and to generate electricity from the expanded beam of electromagnetic radiation. With the expander's curved surface, a beam of electromagnetic radiation that is highly concentrated—has a large radiation flux—may be converted into a beam that has a larger cross-sectional area. Moreover, one can configure, if desired, the curved surface to provide a substantially uniform distribution of radiation across the expanded cross-sectional area. With such an expanded beam the one or more energy conversion components can efficiently convert some of the electromagnetic radiation into electricity.