SU4393A1 - Screen for movie cameras and magic flashlights for stereoscopic images - Google Patents

Description

FIG. 1 of a schematic drawing shows a frame; FIG. 2 is a glass plano-cylindrical convex strip; FIG. 3-frame with glass plate and planks inserted in it; FIG. 4- lentils obtained in each square of a glass plate, and in FIG. 5 explains the effect of the proposed screen.

The present invention is a metal or wood frame / And a rectangular shape in which glass plate A is inserted; On this side of the plate, on both sides, a series of glass flat-convex cylindrical planks D are superimposed over the glass, the flat sides tightly one to another, so that the strips superimposed on one side of the plate are perpendicular to the planks superimposed on the other side plates; the width of the flat sides of the slats and the radius of the cylindrical curvature of their convex surfaces are the same; the length of the slats corresponds to the length and width of the plate A.

FIG. 1 shows the frame / W with the plate A inserted into it. FIG. 2 shows glass plane-cylindrical convex

bar / L FIG. Figure 3 shows an L- / frame with a flat LIS plate inserted into it and flat-convex strips superimposed on both sides of this plate, the strips superimposed on the front side of plate A are separated from each other by solid lines, and the flame on the back side of the glass is dotted . The ends of all the slats are fixed in the sides of the frame / And. The whole area of plate A is divided into squares; if on the front side of the plate A both the planks and the back and / planks are laid, then the number of Psech squares of the bouquet will be expressed as the product /// p. Separately, each of these squares together with the superimposed planks will be double-cylindrical convex lentils, than forming cylindrical bulges are perpendicular to each other. FIG. Figure 4 shows this lentil consisting of two cylindrical Bbinyioibix with flat sides of squares a, a, separated by a square of flat glass b; the number of such lentils is equal to the product m. Point F indicates the main focus, and point O represents the optical center. Since all lentils are the same size,

The nccx in-n head foci of the lentils will be located in one plane parallel to the plane of the plate .4.

If in this focal plane to place a translucent matte screen, made and preparaffined matter or just j

from drawing tracing paper, and take on this translucent screen an image from a cinematic tape or a slide of a magical background, then some of the rays reflect from the screen, some are absorbed by them, and some will pass through it and give an image of the picture on the opposite side; This image will coincide with the plane of the main foci of double-convex lentils. If we look at the picture through frame G with its system of two to convex lentils, then the entire picture will be divided into m n squares and each part will appear, as when viewed in an ordinary objectiv, stereoscopically convex. The combination of visual sensations gives one whole picture.

FIG. Figure 5 shows the image of the CD line on a translucent screen and C (the DI image of the same line for the viewer .P; image $ impression will be an enlarged and imaginary stereoscopic view. The radius of curvature of the cylindrical

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The surfaces of the slats A can be arbitrary, but in order that the entire system with the translucent screen takes up less space, it can be limited to small radii from 50 to 180 mm. Instead of slats B, thin transparent glass tubes of the same shape filled with some kind of transparent refracting liquid can be used.

The subject of the patent.

1. for cinema-apparatus and magic lanterns for the purpose of obtaining stereoscopic images, differing in the use (Figs. 1-5) of a glass plate A with attached thereto, on both sides of it, plane-cylindrical convex planks B, arranged mutually perpendicularly, what a plate is installed in the frame L / and serves to view the images projected by the cinema apparatus or a magic lantern on a translucent screen C located behind the frame.

2. The form of the screen shown in paragraph 1, characterized by using, instead of strips B, thin transparent glass tubes of the same shape, filled with some kind of transparent, refractive liquid. .

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