Optical: systems and elements – Diffraction – From grating
Reexamination Certificate
2008-01-29
2008-01-29
Pritchett, Joshua L (Department: 2872)
Optical: systems and elements
Diffraction
From grating
C359S434000, C359S566000
Reexamination Certificate
active
07324282
ABSTRACT:
The present invention relates to a system of applying optical gradient forces to form a plurality of optical traps to manipulate small particles. The system includes a light source for generating a focused beam of light which is directed along an optical axis though a phase patterning optical element having a variable optical surface and which has a virtual lens encoded thereon. The optical element produces a plurality of beamlets that are coverged at a position between the optical element and a single transfer lens, and directed through the transfer lens to overlap at the back aperture of a focusing lens. The focusing lens coverges the beamlets to form a plurality of optical traps in the working focal region where particles to be examined, manipulated, or measured, are disposed.
REFERENCES:
patent: 5939716 (1999-08-01), Neal et al.
patent: 6055106 (2000-04-01), Grier et al.
patent: 6416190 (2002-07-01), Grier
patent: H06-123886 (1994-08-01), None
J. Liesener et al. (2000). “Multi-functional optical tweezers using computer-generated holograms”. Optics Communications, vol. 185, 77-82.
Paul C. Morgensen et al. (2000). “Dynamic array generation and pattern formation for optical tweezers”. Optics Communications, vol. 175, 75-81.
Eric R. Dufresne et al. (1998). “Optical tweezer arrays and optical substrate created with diffractive optics”. Review of Scientific Instruments, vol. 69 (5), 1974-1977.
Eric R. Dufresne et al. (2001). “Computer-generated holographic optical tweezer arrays”. Review of Scientific Instruments, vol. 72 (3), 1810-1816.
Dufresne Eric
Grier David
Lopes Ward
Akerman & Senterfitt
Arryx, Inc.
Edwards, Esq. Jean C.
Pritchett Joshua L
LandOfFree
Apparatus, system and method for applying optical gradient... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus, system and method for applying optical gradient..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus, system and method for applying optical gradient... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2788205