Optical: systems and elements – Single channel simultaneously to or from plural channels – By partial reflection at beam splitting or combining surface
Reexamination Certificate
2005-05-03
2005-05-03
Dang, Hung Xuan (Department: 2873)
Optical: systems and elements
Single channel simultaneously to or from plural channels
By partial reflection at beam splitting or combining surface
C359S208100, C359S839000
Reexamination Certificate
active
06888680
ABSTRACT:
An optical arrangement is disclosed for obtaining information from a sample or an observed object which comprises a light source for illuminating the sample or observed object and a reception device for the light proceeding from the sample or observed object. At least one beam splitter is included having a splitter surface with a transmittive area and a reflective area. Light from the source is directed to the splitter surface, reflected by the reflective area of the splitter surface to a concave mirror, focused by the concave mirror onto the transmittive area and passes through the latter, or the light is focused onto the transmittive area, passes through the latter to a concave mirror, is directed from the concave mirror to the splitter surface and is deflected by the reflective area of the latter. The focusing is influenced by the geometry of the mirror surface of the concave mirror and the distance between the concave mirror and the splitter surface. A selected beam expansion is predetermined and/or the wavefront of the light is manipulated for purposes of optimally adapting the light to the characteristics of the rest of the optical component groups and/or the optical characteristics of the sample or of the observation object.
REFERENCES:
patent: 5557447 (1996-09-01), Taylor
patent: 6078420 (2000-06-01), Macken
Carl Zeiss Jena GmbH
Dang Hung Xuan
Martinez Joseph
Reed Smith LLP
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