초록 ▼

In an autofocus camera, at least one lens of a photographing lens system serves as a focus lens which is reciprocatively moved by a drive unit along a predetermined optical path. A detector detects a position of the focus lens in the lens system. On the basis of the detected position, a calculator c

In an autofocus camera, at least one lens of a photographing lens system serves as a focus lens which is reciprocatively moved by a drive unit along a predetermined optical path. A detector detects a position of the focus lens in the lens system. On the basis of the detected position, a calculator calculates a correction amount of a spherical aberration of the lens system. A controller controls the drive unit on the basis of the calculated correction amount so as to cause the drive unit to move the focus lens to a position where the spherical aberration of the lens system is corrected.

대표청구항 ▼

An autofocus camera comprising: a photographing lens system including at least one focus lens reciprocatively movable along a predetermined optical path; drive means for reciprocatively moving said focus lens along said optical path; means for detecting a position of said focus lens and for outputti

An autofocus camera comprising: a photographing lens system including at least one focus lens reciprocatively movable along a predetermined optical path; drive means for reciprocatively moving said focus lens along said optical path; means for detecting a position of said focus lens and for outputting a signal representative of position information; means for calculating, on the basis of said position information outputted from said position detecting means, a correction amount with respect to a spherical aberration of said lens system at said detected position and for outputting a signal representative of the calculated correction amount; and control means for controlling said drive means on the basis of said signal outputted from said calculating means so as to cause said drive means to move said focus lens to a position where said spherical aberration of said lens system is corrected.