Apparatus for making positive pictures from slides

Claim 1

An apparatus for making positive pictures from slides, in which a camera has a picture-taking lens at infinity setting and in which a slide-copying attachment is connectable to said camera and including means for holding a slide to be reproduced, and a reproducing lens spaced from the slide by a distance and located parallel and proximal to said picture-taking lens when said attachment is connected to said camera for reproducing a picture of said slide in said camera, wherein the improvement comprises: a self-developing camera having a self-developing film sheet and being connectable to said slide-copying attachment; a light sensing control next to said picture-taking lens which control receives light through a window arranged in said attachment and actuates a shutter for controlling the exposure of the slide; and a prism associated to the window for deflecting light passing through the slide into an inlet of said light-sensing control, the slide and the picture area of the film sheet each being rectangular and having a shorter edge dimension and a longer edge dimension, the ratio of the focal length of said reproducing lens to the focal length of the said picture-taking lens being equal to the ratio to the longer edge dimension of the slide to the longer edge dimension of the instant-film picture area, the distance between said reproducing lens and said slide corresponding to the focal length of said reproducing lens.

Claim 2

An apparatus for making positive pictures from slides, in which a camera has a picture-taking lens at infinity setting and in which a slide-copying attachment is connectable to said camera and including means for holding a slide to be reproduced, and a reproducing lens spaced from the slide by a distance and located parallel and proximal to said picture-taking lens when said attachment is connected to said camera for reproducing a picture of said slide in said camera, wherein the improvement comprises: a self-developing camera having a self-developing film sheet and being connectable to said slide-copying attachment; a light sensing control next to said picture-taking lens which control receives light through a window arranged in said attachment and actuates a shutter for controlling the exposure of the slide; and a prism associated to the window for deflecting light passing through the slide into an inlet of said light-sensing control, the slide and the picture area of the film sheet each being rectangular and having a shorter edge dimension and a longer edge dimension, the ratio of the focal length of said reproducing lens to the focal length of the said picture-taking lens being equal to the ratio to the longer edge dimension of the slide to the longer edge dimension of the instant-film picture area, the distance between said reproducing lens and said slide corresponding to the focal length of said reproducing lens.