US 4,934,824 A · Recording and reproduction of images

Abstract

A method of recording an image of an object onto cinematographic color film comprises forming a number of successive images of the object through a single lens system onto each frame of the film, the successive images being recorded in light of different characteristics, for example different colors. In a preferred embodiment, each frame of the film is exposed successively to light of two or three different colors. The film is projected using a conventional projector, and when viewed through spectacles consisting of two appropriate filters gives a stereoscopic effect. The method can be used to produce a film which can also be viewed without spectacles, and is found to give enhanced sharpness and color saturation. The invention also includes a moving film camera having a mechanism for interposing a number of filters in the optical path successively during exposure of each frame so that successive images are overlaid on each frame. In one embodiment a rotatable shutter member having a transparent portion consisting of a number of filters is provided. The shutter member may replace the rotating shutter of a conventional film camera. Several different forms of shutter member are described.

Claims11

Dependent claims

A method of recording onto cinematographic film an image of an object moving relative to the film, the method comprising the steps of:

(a) forming onto each single frame of the film a plurality of partial images of the object taken at successive intervals of time;
(b) said partial images being overlaid on each said frame and being displaced in position relative to one another owing to the relative movement between the object and the film in the or each time interval between the formation of the successive partial images;
(c) said successive partial images being recorded in light of different colors;
(d) said different colors being selected so that the overlaid partial images combine to form a full color image on reproduction of the image;
(e) whereby, when the image is reproduced and viewed through filter spectacles allowing the left and right eyes of the viewer to see different ones of the partial images or different combinations thereof, a stereoscopic effect is obtained.

2 more elements

A moving color film camera, comprising:

(a) a mechanism for interposing a number of color filters in an optical path of the camera succesively during the exposure of each single frame of the film, for forming onto each single frame of the film a plurality of partial images of an object moving relative to the film taken at successive intervals of time;
(b) said partial images being formed by light passing through said color filters and being overlaid on each frame, said partial images being displaced in position relative to one another owing to the relative movement between the object and the film in the or each time interval between the formation of successive partial images;
(c) said successive partial images being recorded in light of different colors;
(d) said different colors being selected so that the overlaid partial images combine to form a full color image on reproduction of the image of the object;
(e) whereby, when the image is reproduced and viewed through filter spectacles allowing the left and right eyes of the viewer to see different ones of the partial images or different combinations thereof, a stereoscopic effect is obtained.

2 more elements

Dependencies are inferred from the claim text.

Recording and reproduction of images

Life of this patent

Recording and reproduction of images

Life of this patent

Abstract

Claims11