Optical: systems and elements – Single channel simultaneously to or from plural channels – By partial reflection at beam splitting or combining surface
Reexamination Certificate
2004-01-27
2010-10-05
Mack, Ricky L (Department: 2873)
Optical: systems and elements
Single channel simultaneously to or from plural channels
By partial reflection at beam splitting or combining surface
Reexamination Certificate
active
07808712
ABSTRACT:
Optical apparatus for simultaneously focussing first and second coaxially spaced object planes in respective separate first and second areas of a common image plane13(such as the sensor of a CCD camera) comprises non-diffractive beamsplitter means for receiving light from said object planes along a common path2for transmission to said first and second image areas along respective first and second optical paths3, 4, and reflective or transmissive focussing means8arranged to bring said first and second object planes into focus in said first and second areas. The object planes may be differentiated by having different length paths3,4(different physical lengths and/or using a differential optical delay), and/or by having different focussing powers in the two paths. In an add-on for a camera, differently curved mirrors of long focal length modify the main camera lens. Polarising optics may be used to separate the two images. The apparatus may be used for 3-D imaging or wavefront analysis.
REFERENCES:
patent: 4005285 (1977-01-01), Price
patent: 4487490 (1984-12-01), McKee
patent: 5135183 (1992-08-01), Whitney
patent: 5384455 (1995-01-01), Paxman
patent: 5774269 (1998-06-01), Snoeren
patent: 6081327 (2000-06-01), Gaechter et al.
patent: 6107617 (2000-08-01), Love et al.
patent: 6115121 (2000-09-01), Erskine
patent: 6219146 (2001-04-01), Innes et al.
patent: 6233054 (2001-05-01), Theriault
patent: 6975457 (2005-12-01), Greenaway et al.
patent: 2002/0167642 (2002-11-01), Jones et al.
patent: 4-93912 (1992-03-01), None
patent: 4-267203 (1992-09-01), None
patent: 99/46768 (1999-09-01), None
International Search Report for PCT/GB2004/000317 dated May 18, 2004.
UK Search Report for GB 0301923.9 dated Mar. 19, 2003.
Blanchard et al.,Simultaneous multiplane imaging with a distorted diffraction grating, Applied Optics, vol. 38, No. 32, Nov. 10, 1999, pp. 6692-6699.
English translation of Japanese Examination Report dated Sep. 14, 2009 for JP 2006-502200.
Lewin Andrew C
Scott Andrew M
Woods Simon C
Mack Ricky L
Nixon & Vanderhye P.C.
Patel Vipin M
QinetiQ Limited
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