SU54A1 - Modifying the instrument to get stereoscopic impressions of two images of different scale - Google Patents

Description

In FIG. 1 shows in the left part a section along the AB in FIG. 2 and in the right part, a top view of the proposed modified device of the device described in the patent for No. 26; FIG. 2 - in the left part - the device view from the entrance and from the right - from the exit rays; FIG. 3, 4 and 5 are details of the device, with FIG. 3 shows a section along the CD, FIG. 4 is a section through MN and FIG. 5 is a sectional view of EF in FIG. 2

In the proposed modification of the device, instead of the rotary device of the prisms described in the basic invention, the shells 7 and 8 themselves, comprising two objective la and two ocular 1st prisms (Fig. 1), are arranged rotationally on a joint 9 - 12 (Fig. 1 , 2, 4), with the oculars with their prisms mounted movably.

Both objective prisms of Itr are placed in frame 2 (figs. 1–3), in which they are held using pressure plate 5 and can, as indicated in the basic invention, move B to a horizontal plane, for example, when moving screws 16 (Fig. 1 ) their frames along slots 18 to bring the images to coincidence, and in this modification there are applied dividers 14, attached parallel to the slots 18, for example, using shields 15, with the possibility of counting by means of pointers 17. From free sliding on the casing la prisms are held n a pair of pins (Fig. 3).

Each of the ocular prisms of the 1st is enclosed in the frame 4 (Figs. 1 and 5), which is held by means of a compact plate 5, reinforced with a screw. 6. An eyecup 3 is screwed into the frame 4 of the prism. Observer, prisms 1c can move in a horizontal plane when the screws of their frames move along slots 19 in shells 7 and 8 and are held in place by spring pins 13 (Fig. 5). The above-mentioned itner for rotating the covers of the instrument is shown in section in FIG. four; covers 7 and 8 rotate around a common sleeve 9 on which they are fastened with a clamping ring 10. To smoothly rotate parts 7 and 8 of the device around sleeve 9, a spacer sleeve 11 with washers 12 is used between the upper and lower bases of the sleeve and the walls of the covers (FIG. . four).

The rays from the object, the passage through the outer prisms 1l and 1 (7, fall on the prisms 1b and 1e and, having reflected again, fall into the eye of the observer.

The described device is applicable when studying ordinary aerial photographs (simultaneously) with a map or plan of the same participant, regardless of the scale of the latter, and is also intended to replace the effect of a Bervil transformer prism. Then, when comparing images of the same position with this device, taken at different times, at least from different heights, it can be determined, when finding the difference li them, the adversary's tendencies to one or another direction of work, for example, trench other preparatory operations.

PRED M ET and 3 o 1 P i; T E 11 and.

1. A change in the device for obtaining stereoscopic impressions from two images of different scale, described in patent No. 26, differs in that instead of separately prisms (1,4) turning around their vertical axes (1,4), the covers themselves with enclosing prisms are equipped with prisms at the desired angle, the hinge, and the oculars with prisms belonging to them are mounted movably, in order to bring each image into the field of view of the corresponding eye (Fig. 1-4).

2. At the fixture specified in p. 1, the use of a ruler 14 with divisions applied on it, which serves to install objective prisms la (Fig. 1).

to the additional patent / A.Y. Mufmayaa,

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