RU1788504C - Frame for stereoscopic slides - Google Patents

Abstract

Use: photographic equipment. SUMMARY OF THE INVENTION: the frame for stereo transparencies is made in the form of two plates with two frame windows and protective glass installed therein. Both plates are connected by hollows and protrusions. Along the long sides of the frame windows on the inner surface of the plate are hollows with pairs of through holes. The latches are located in the through holes x. Moreover, one pair of holes of each plate is offset relative to the vertical axis of the frame window in the opposite direction relative to another pair of through holes. When assembling the frame, the stereopair slides are perforated under the clips. 2 ill.

Description

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WITH

The invention relates to the field of photography and can be used when projecting onto a screen or viewing stereo pairs in a stereoscope.

Stereo frames are known. made of thick thin cardboard or plastic, in the form of two plates with frame windows and grooves for installing stereo pairs.

The disadvantages of these designs are the lack of adjustment of the stereo base, since stereo pairs are inserted into slots or glued between the plates and are always on a fixed base. The use of such frames requires special mounting devices for installing stereo pairs, and the absence of protective glasses creates different focus images of the left and right frames due to distortion of the stereo pair slides, amplified by

heat, and exposure to dust and scratches. In addition, there is a low manufacturability because gluing processes are used or two different molds are used to make the plates.

Closest to the technical nature of the invention is a frame for stereo slides, made in the form of two plastic plates with frame windows and safety glasses, interconnected by fasteners in the form of protrusions (pins) and hollows (blind holes). Stereopair slides are mounted on the same pins located along the long sides of the frame windows of one of the plates.

The disadvantages of this framework include the impossibility of regrouping the stereo base VI 00 00 SP

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pairs, since the perforations by which the stereopair slides are fixed on the plate are strictly connected to the borders of the frame. In addition, differences in the design of the plates necessitates two different molds, which increases the laboriousness of manufacturing these frames.

The aim of the invention is to simplify the design and expand operational capabilities by providing adjustment of the stereo base.

This goal is achieved by the fact that in the frame for stereo slides containing interconnected plate fastening elements with rectangular frame windows, protective glasses and clips, on the inner surface of each plate along the long sides of the frame windows there are hollows with pairs of through holes, and the clips are made They are formed in the form of protrusions on the plates, flush with their inner surfaces and placed in the respective through holes, with one pair of through holes in each plate shifted relative to the vertical axis of the frame window in the opposite direction relative to another pair of through holes.

In FIG. 1 shows a general view of one of the plates of the frame; in FIG. 2 - section aa of FIG. 1,

The frame for stereo transparencies consists of two plates 1 with two frame windows 2 and protective glasses 3 installed therein. Both plates 1 are connected integrally by means of fastening elements, for example, depressions 4 and protrusions 5.

On the inner surface of the plate 1 along the long sides of the frame windows 2 there are hollows b with pairs of through holes 7. The latches 8 are placed in the corresponding through holes 7 and are flush with the inner surface of the plate 1. In addition, one pair of through holes 7 of each plate 1 is offset relative to the vertical axis of the frame window 2 in the opposite direction relative to another pair of through holes 7. The location of the pairs of holes 7 with latches 8 with an offset is necessary to prevent the screen from ERSTU 7 during the projection time.

Before use, the frame for stereo transparencies is assembled as follows: on the plate 1 (half-frame) with the protective glasses 3 inserted, slides 9 of the stereo pair are mounted with perforations under the clips 8, placing the slides 9 symmetrically relative to the frame window 2 or slide 9 to the left or right, depending on the desired stereo effect.

0 At the same time, slides 9 of the stereo pair keep the glass 3 from falling out.

Then, plate 1 with inserted slides 9 is superimposed on a second plate 1 with inserted glasses 3.

5Plates 1 are compressed so that the protrusions 5 of both plates 1 fit into their corresponding depressions 4. In this case, the pair of through holes 7 of one plate 1 is blocked by the body of the other plate0. The stereo slide frame is ready to use.

This frame for stereo slides allows you to adjust the stereo base by allowing slides of the stereo pairs to move in the latches relative to the Frame windows, while expanding the operational capabilities by increasing the range of stereo effects. In addition, the frame design allows the manufacture of plates in a single mold.

Claims (1)

SUMMARY OF THE INVENTION A frame for stereo transparencies comprising interconnected plate fastening elements 5 with rectangular frame windows, safety glasses and clips, characterized in that. in order to simplify the design and expand operational capabilities beyond 0 by providing stereo adjustment. hollows with pairs of through holes are made on the inner surface of each plate along the long rows of frame windows, and the latches are made in the form 5 protrusions on plates flush with their inner surfaces and placed in corresponding through holes, with one pair of through 0 holes of each plate is offset relative to the vertical axis of the frame window in the opposite direction relative to. but another pair of through holes. FIG. /