SU28A1 - Modifying a device with two receptions for viewing projection stereograms enlarged and removed from the viewer - Google Patents

Description

FIG. 1 shows a general external view of the device; FIG. 2 is an enlarged external view of a part of the device; FIG. 3 shows a section along AB of FIG. 5, in FIG. 4 shows the hinges of the case for changing the refractive angle of the prisms; FIG. 5 is a view of the diaphragm; FIG. 6 is a section of a modification of the device; FIG. 7 and 8 are earring systems for coupling the sheath tubes.

In the proposed modification, the device of the device is as follows: each of the rotary prisms described in the main invention is replaced by a pair of prisms 1 (Fig. 3), while rotating one of which rotates the other in the opposite direction. Prisms 1 are enclosed in shells (tubes) 13 (Fig. 3) rotating on hinges 20, 21, 22 (Figs 1 and 4). The covers 13 are provided with scales 23 (Figs. 1, 2 and 3), the divisions of which serve to indicate, by means of a pointer on the cover, to increase or decrease the angle of rotation of the composite prisms. In the cases 13 there are two mandrels 2 (fig. 3) for prisms 1, which are fixed in these

the mandrels using beveled mounting rings 4 (Fig. 3) and clamping rings 3. On the side surfaces of the mandrels 2, teeth 24 are cut to rotate them in order to change the prisms refraction angle: one by means of a small ring 8 (Fig. 3) knurled and the other, by transferring rotation in the opposite direction to it by a special pinion 5 (Fig. 3) in sleeve 6 fixed by nut 7. The mandrels are mounted in the casing using a fastening ring 9 (Fig. 3) with a gasket 11 and fastening ring 10 which is screwed with it to which the eyecup 12 is attached (Fig. 3). To change the field of view, the instrument is equipped with diaphragms 15, 16, 17, 18 (Fig. 3) with a variable aperture area. The device consists of the following: the plate 16 (Fig. 3 and 5) is provided with a rectangular slot and perpendicularly arranged recesses 25 for the pegs of the upper and lower pair of dampers 17 (Fig. 3 and 5); these pegs and, consequently, the flaps 17 are also guided by spiral cuts of the ring 15 (Fig. 3 and 5) fastened with a screw 26 (Fig. 3) with a swivel ring 14 (Fig. 3) provided with a knurling. By this mutually perpendicular movement of each pair of dampers, an increase and a decrease in the area of the rectangular opening in the diaphragms and, consequently, the field of view is achieved. The diaphragms are fixed with a clamping ring 18 (Fig. 3), which also serves as a rim for the safety glass 19 (Fig. 3).

In the following modification of the device device, shown in section in FIG. 6, the system of flat prisms 1, rotating one above the other, is replaced by a system of two lenses facing flat faces outward: flat convex 23 and flat concave 24, one of which is fixed, and the other slides along its first curvilinear surface during rotation, and the flat edges the prisms form between themselves a varying angle of refraction.

With the described modifications of the device, a system of earrings 1, 2, 3, 4 (Fig. 7) articulated between itself and the housing tubes with hinges 5 fixed by turning the handle 6 with an eccentric head (Figs. 7 and 8) can be applied. The device, as mentioned in the description of the main device, can be made in the present modifications in the form of binoculars,

I lornet or glasses with the preservation of the respective structural parts.

SUBJECT OF INVENTION.

1.Varification of a device with two prisms for viewing projection magnified and stereograms separated from the viewer, described in patent No. 27, characterized in that each of the rotary prisms is replaced by a pair of prisms 1, while rotating one of which the other rotates in the opposite direction to change the refractor angle a for changing the field of view the instrument is equipped with diaphragms 15, 16, 17, 18 with a variable orifice area (Fig. 3 and 5).

2. The change of the device specified in p. 1, characterized by using, instead of a system of flat prisms 1, a system of flat-convex and flat-bent lenses 23 and 24, of which one is stationary, and the other slides along its first curved surface during rotation (Fig. 6 ).

I 3. The form for doing this; in pp 1 and 2 of the instrument, characterized by using a scale 23 for changing the angle I of rotation of the composite prisms (Figs. 2 and 3). } 4. At specified in p.p. 1 and 2, the device uses a system of earrings 1-4, which are hinged between themselves and with the casing tubes and secured with a rotary handle 6 with an eccentric head (Fig. 7 and 8).

20/22