Sight axis detection apparatus
AssigneeCanon Kabushiki Kaisha
InventorAkira Yamada
Life of this patent
Estimating the term…
Abstract
An apparatus comprising a sight axis detection means for detecting a sight axis direction of a photographer who looks into a finder field, a focus detection means for detecting focus adjustment states in a plurality of areas in the finder field, and a photometry means for measuring luminances of a plurality of areas in the finder field, which causes a selection means to select an area to be subjected to a distance measuring operation on the basis of signals from the sight axis detection means and the photometry means, and performs focus detection of an objective lens on the basis of a focus detection signal from the focus detection means in the area selected by the selection means.
Claims10
A focus adjustment apparatus for an objective lens, comprising:
- detection means for detecting a view point of an observer;
- photometry means for measuring luminances at a plurality of positions in a field;
- and
- selection means for selecting an area to be subjected to focus adjustment of said objective lens on the basis of a detection signal from said detection means and a photometry signal from said photometry means.
An apparatus comprising:
- detection means for detecting a view point of an observer;
- photometry means for measuring luminances at a plurality of positions in a field;
- and
- inhibition means for, when a photometry output from said photometry means is abnormal, inhibiting setting of an area corresponding to the view point detected by said detection means.
Dependencies are inferred from the claim text.