Patent Document ID: 20030077080
Application ID: 10263606
Patent Status: 0

Claim One:
1. A photometric back light evaluation apparatus comprising: a photometric circuit for measuring a brightness of a subject in a plurality of areas of a photographic frame; a geometric circuit for measuring a distance to the subject in a plurality of areas of the photographic frame; and a processor for evaluating backlight in the photographic frame based on measurements obtained by the photometric and geometric circuits, the processor comprising: (a) a grouping part for grouping the plurality of areas of the photographic frame based on the subject distance measured by the geometric circuit; (b) a group brightness calculation part for calculating photometric measurements of each group formed by the grouping part based on the subject brightness measured by the photometric circuit; (c) a group selection part for selecting a first group among the groups formed by the grouping part; and (d) a backlight evaluation part for evaluating a backlight condition through calculating a difference in photometric measurement between the first group selected by the group selection part and the remaining groups.