Tube lens unit with chromatically compensating effect

Details Tube lens unit with chromatically compensating effect Tube lens unit with chromatically compensating effect

2007-10-30

2007-10-30

Spector, David N. (Department: 2873)

Optical: systems and elements

Lens

Microscope objective

C359S368000

Reexamination Certificate

active

11510962

ABSTRACT:
The invention relates to a tube lens unit that obtains a chromatically compensating effect when used with objectives having an infinite image distance and chromatic residual errors. The inventive tube lens unit fulfils the following conditions:in-line-formulae description="In-line Formulae" end="lead"?CHL=CHLo−AT2mTφT=0  Equation (1)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?CHV=CHVo−1000λmTφTd1=0  Equation (2)in-line-formulae description="In-line Formulae" end="tail"?where CHL is the longitudinal chromatic aberration of the combination of tube lens unit plus objective, CHLois the longitudinal chromatic aberration of the objective,CHV is the chromatic difference of magnification of the combination of tube lens unit plus objective,CHVois the chromatic difference of magnification of the objective.

REFERENCES:
patent: 3583789 (1971-06-01), Rosenberger
patent: 4365871 (1982-12-01), Muchel
patent: 5161052 (1992-11-01), Hill
patent: 6366398 (2002-04-01), Ouchi
patent: 2002/0154398 (2002-10-01), Wolleschensky et al.
patent: 976 880 (1956-02-01), None
patent: 2 047 673 (1971-05-01), None
patent: 257 504 (1988-06-01), None
patent: 1 253 457 (2002-10-01), None
patent: 782213 (1957-09-01), None

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