GB1211464A - Cameras and photographic processes - Google Patents

Abstract

1,211,464. Multilens and pinhole cameras. RLM RESEARCH CORP. Oct. 7, 1968 [Oct.11, 1967], No.47460/68. Heading G2A. A camera comprises a base member 10 for supporting a photographic plate 12, a frame member 40 movable towards and away from the plate and carrying a sheet 42 having an image forming array of light passageways, the sheet being capable of being brought into contact with the plate, and a device 86 carried on the frame for exposing index marks adjacent an edge of the plate. The sheet may be lenticular having a multiplicity of lenslets with spherically convex front surfaces, each of the lenslets is preferably provided with a diaphragm aperture (52) Fig.6 (not shown), the apertures being in a sheet (50) prepared using an image intially produced in the camera. Spacers (54) may also be provided to space the sheet from the photographic plate. The lenslets are arranged in either a hexagonal or square array. Instead of lenslets, a flat screen (120) Fig.12 (not shown) is used having a hexagonal array of apertures each acting as a pinhole camera, the screen being formed by two ruled glass sheets with the rulings angularly arranged at 60 degrees, the opaque lines being 0À100 inch wide whilst the transparent lines are 0À010 inch wide. The base member 40 contains a passage 68 and apertures 70 for applying suction to the space between the sheet and the photographic plate. Tubes 86 have a translucent screen 90 and a bulb 92 produces a registration mark in the form of a circle on the plate. The camera is supported on threaded members 24 to a metal plate 16 mounted on a wall 18. The frame 40 is pivotally mounted at 45 to the base member 10. The camera is disposed within a housing containing lamps (112) Fig. 1 (not shown) and a target (100) consisting of a white circle or hexagon mounted upon a black background, the target being movable towards and away from the camera on rails (108), (110).