Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Methods of use
Reexamination Certificate
2003-08-19
2009-02-10
Hasan, M. (Department: 2873)
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Methods of use
C351S205000
Reexamination Certificate
active
07488075
ABSTRACT:
An evaluation of an optical system with respect to visual acuity is appropriately performed, with a chromatic aberration of magnification of the optical system being taken into consideration. A performance of the optical system is evaluated based on a correlation between a visual acuity when looking through the optical system and the chromatic aberration of magnification of the optical system, the correlation being a proportional relation such that, when the visual acuity is expressed by a logarithmic visual acuity, the logarithmic visual acuity deteriorates substantially in proportion to the chromatic aberration of magnification, or on a correlation between the visual acuity and an optical value regarding the chromatic aberration of magnification which is substantially equivalent to the correlation.
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Hasan M.
Hoya Corporation
Oliff & Berridg,e PLC
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