Camera viewfinder with image field marking - has beam splitter reflecting light from source onto field of view limiter of display plate

摘要

The display plate (8) is installed in the beam path extending from the taking lens (2). A field-of-view limiter (10) is mounted on the side of the display plate facing a beam splitter (14). An ocular (24) and a light source (20,21) to illuminate the limiter are provided. The beam splitter reflects the light from the source onto the limiter. The ocular is installed on the side of the beam splitter facing the light source and display plate. An aperture shutter (25) is installed between the lamp (20) and beam splitter. The light source (21) is a circular illuminator with a dispersion disk in-front. ADVANTAGE - Compact construction allowing collimating transreflective mirror to be installed without special surface precision requirement field-of-view marking is exchangeaable.