| 摘要 |
A photometric system for a photographic printing apparatus having an exposure device for projecting light traveling from a light source (21) through a mirror tunnel (24), along a projection path through a photographic film (2) to printing paper (3). An opening (24b) is formed in a side wall (24d) having a mirror surface for forming the mirror tunnel. The photometric system includes a photometer (60) disposed outside the mirror tunnel for metering only light entering through the opening (24b) from a region of the opening (24b) and a region displaced from the region of the opening (24b) toward the light source, and a reflection mirror (31; 71) for deflecting the light entering through the opening (24b) toward the photometer (60). The reflection mirror (71) is switchable between a first position for deflecting the light entering through the opening (24b) toward the photometer (60), and a second position for covering the opening (24b). <IMAGE> |
