4. Optical: systems and elements
  5. Diffraction
  6. From grating

Steven Ebstein

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Achromatic diffractive optic

Optical: systems and elements – Diffraction – From grating
Patent

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Method and apparatus for adjusting the focal length of a optical

Optical: systems and elements – Lens – Fluid
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Verification device for currency containing an embedded security

Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
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Profile ID: LFUS-PAI-P-130488

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