Multiple function recording and readout system

Claim 1

A plural-function optical apparatus, including, a. a first optical screen, b. a first lensfiche whose lensettes face said first screen, said first lensfiche being parallel to said first optical screen, c. a second lensfiche, parallel to said first lensfiche, whose emulsion side faces the emulsion side of said first lensfiche, d. a second optical screen, parallel to said second lensfiche, on the same side of said second lensfiche as the latter's lensettes, e. two sets of septa each defined by opaque, intersecting walls, said intersecting walls defining open-ended cells, said septa walls being orthogonal to said optical screens, one septa set extending between said first optical screen and said first lensfiche, the other septa set extending between said second lensfiche and said second optical screen, f. two apertured, planar selector masks, each mask positioned contiguous to the lensettes of, respectively, said lensettes, and each mask lying between its contiguous lensettes and one end of the cells of a septa set, g. each aperture of said selector masks opening onto a single associated lensette of a corresponding lensfiche, each aperture lying at one end of a septa cell, there being one mask aperture for each septa cell, the remaining lensettes being covered by said selector masks.