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Multifocal Diffractive Lens for Laser Applications : ウィキペディア英語版 | Multifocal Diffractive Lens for Laser Applications
Multifocal Diffractive Optical Elements (DOE) allow a single incident beam to focus simultaneously at several focal lengths along the propagation axis. == Principal of Operation ==
An incident laser beam deflected by grooved diffraction pattern into axial diffraction orders along optical axis.
The foci positions appear around far field position.
In a case of using additional focusing lens, foci from mutifocal lens will appear in certain distance from focal distance of the lens.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Multifocal Diffractive Lens for Laser Applications」の詳細全文を読む
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