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diffraktive optical synthetic aperture and laserschneidvorrichtung with such optics
diffraktive optical synthetic aperture and laserschneidvorrichtung with such optics
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机译:衍射光学合成孔径和具有此类光学元件的激光成像技术
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摘要
An optical device for focusing a light beam. The device includes a Fourier diffractive element that can separate an incident beam into n beams along n directions which are symmetric about an optical axis. The device also includes a diffractive element including n Fresnel lenses capable of refocusing the n beams onto the optical axis. The device may be used with lasers and laser cutting devices.
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