公开(公告)号：US11579439B2

公开(公告)日：2023-02-14

申请号：US16878540

申请日：2020-05-19

Applicant: SILICON LIGHT MACHINES CORPORATION

Inventor： Lars Eng ,  Alexander Payne ,  Daniel Eng ,  Satoshi Yamashita

IPC: G02B26/08 ,  G02B5/18 ,  G02B27/30 ,  G01J3/02 ,  G02B27/16

Abstract: A system and method are provided for spectral shaping of light from a broadband source using a linear spatial light modulator (SLM). The system includes an illumination source generating light including a plurality of wavelengths, a lens to collimate the light and an aperture to define its angular spread, a diffraction grating to disperse the beam by wavelength, and a focusing element to focus the dispersed beams from the diffraction grating onto a plurality of pixels of the SLM. The SLM is configured to individually modulate the dispersed beams by diffracting light output therefrom into higher orders, where a diffraction angle of output light is greater than an input cone angle of incoming light from the illumination source.

公开(公告)号：US20200371344A1

公开(公告)日：2020-11-26

申请号：US16878540

申请日：2020-05-19

Applicant: SILICON LIGHT MACHINES CORPORATION

Inventor： Lars ENG ,  Alexander Payne ,  Daniel Eng ,  Satoshi Yamashita

IPC: G02B26/08 ,  G02B5/18 ,  G01J3/02 ,  G02B27/30

Abstract: A system and method are provided for spectral shaping of light from a broadband source using a linear spatial light modulator (SLM). The system includes an illumination source generating light including a plurality of wavelengths, a lens to collimate the light and an aperture to define its angular spread, a diffraction grating to disperse the beam by wavelength, and a focusing element to focus the dispersed beams from the diffraction grating onto a plurality of pixels of the SLM. The SLM is configured to individually modulate the dispersed beams by diffracting light output therefrom into higher orders, where a diffraction angle of output light is greater than an input cone angle of incoming light from the illumination source.