FILM UNIT WITH LENS

Japanese Patent JP3778408

B2

PROBLEM TO BE SOLVED: To prevent the ghost or flare caused by the internal reflection of a harmful light and further substantially prevent the reduction in peripheral light quantity by setting the field angle of photographic light extending from a photographic lens diaphragm to the circumference of an exposing area when the effective diameter is large smaller than the field angle of photographing light when the effective diameter is small. SOLUTION: Since the optical path (a) of photographic light in the drawing- side position of a photographic lens 19 is on the inside of an exposing aperture 9, the light going to the area outside of an exposing area A through a photographic lens diaphragm 21 passes the exposing aperture 9. However, since the exposing aperture 9 is set to a size for shielding at least a part of the light going to a non-print area in the feeding position of the photographic lens 19, the quantity of the light going to the area outside the exposing area A through the exposing aperture 9 is reduced by this portion in the drawing-side position of the photographic lens 19. Accordingly, the ghost or flare caused by internal reflection can be suppressed also in the drawing-side position of the photographic lens 19 by the exposing aperture 9 to some degree.