Projector for at least partially transparent or translucent image originals has beam divider mirror in light path after original at acute angle to light direction followed by Fresnel hollow mirror

摘要

The projector has a lamp (16,18) and a holder (20) for an image original in the lamp's light path. A beam divider mirror (28) arranged in the light path after the original and inclined at an acute angle to the main light direction is followed by a Fresnel hollow mirror (34). A background image (30) is arranged near the divider mirror on the lamp side, leaving the opposite side free to the observer's view.