Optical: systems and elements – Lens – With variable magnification
Reexamination Certificate
2007-06-26
2007-06-26
Sugarman, Scott J. (Department: 2873)
Optical: systems and elements
Lens
With variable magnification
C359S699000, C359S704000, C359S819000, C359S823000
Reexamination Certificate
active
10405682
ABSTRACT:
A device for adjusting the back foci of an objective and a camera to one another has a housing by which a graphic pattern and an optics are mounted at a predetermined distance F′ from each other. The temperature compensation for the distance F′ is constant to ±2 mm for a temperature change of Delta 20° Celsius. The device also includes an apparatus for matching the back foci of an objective and a camera to each other, in which a housing has a fastening mechanism for fastening an object-side end of the objective and a graphic pattern is arranged in the housing on the end of the device opposite the fastening mechanism. The invention also includes a method for equalizing the back foci of an objective and camera using specific steps.
REFERENCES:
patent: 3879113 (1975-04-01), Howland et al.
patent: 4199220 (1980-04-01), Casagrande
patent: 4255029 (1981-03-01), Freudenschuss
patent: 5889555 (1999-03-01), Kawase et al.
patent: 6404939 (2002-06-01), Wada
patent: 2 259 373 (1993-10-01), None
German Office Action dated Feb. 2005 (translation attached).
Müller Gebhard
Weber Uwe
Carl Zeiss AG
Ottesen Walter
Sugarman Scott J.
Thomas Brandi
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