WO2021246903A1 - Collapsible lens stereoscope - Google Patents

Abstract

The invention relates to devices for viewing a three-dimensional image formed by a stereopair. The problem addressed is that of creating a stereoscope for high-quality viewing of stereopairs on cards and smartphones of various sizes, which is easy to manufacture and which, in its initial state, has dimensions that allow it to be inserted into magazines and booklets. The stereoscope consists of a resilient, curved, thin-walled plate for holding, in parallel planes, a stereopair carrier medium and a thin-walled panel with ocular lenses installed thereon. Changing the curvature of the plate makes it possible to accommodate stereopair carrier mediums of different sizes. The flexible, resilient plate can be made of separate joinable parts in order to allow for a wider range of sizes of stereopair carrier mediums.

Description

Dismountable lens stereoscope.

Description.

This device belongs to stereoscopy, namely to devices for viewing a three-dimensional image of the parallel stereopair type. Parallel stereopair is a type of presentation of a three-dimensional image in which the images for the left and right eyes of the observer are located on the carrier one next to another, respectively, to the left and to the right.

Many designs of collapsible and collapsible lens stereoscopes for viewing parallel stereopairs are known from the prior art. An example is the constructions described in applications for a utility model - RU 45196 U1, RU 32894 U1 and others.

The task to achieve which the claimed technical solution is aimed at is to obtain an inexpensive, technologically advanced stereoscope for high-quality viewing of stereopairs on cards and smartphones of different sizes, which can be used for advertising purposes - to invest in magazines and booklets, use in conjunction with handouts at exhibitions; with which you can view personal stereo photos; which can be sold as a souvenir, complete with a collection of stereo photographs in museums and tourist attractions; use in virtual reality applications, etc.

A stereoscope made in accordance with this utility model is characterized by a combination of the following features:

• can be made from inexpensive sheet material in the course of one technological operation, for example, punching or laser cutting.

• in its original state it has dimensions that allow it to be put into magazines and advertising brochures, see Fig. 1.

• has the necessary settings for comfortable viewing of the image - setting the focal length and setting the lens distance;

• allows you to view images on cards with a rigid base or on the screen of a small display, such as a smartphone.

• allows you to use carriers of stereopairs of different sizes, for example smartphones with different screen sizes.

• when using a smartphone as a carrier of a stereopair, the details of the stereoscope design do not impede access to the screen and other controls, which allows using the smartphone for its intended purpose, without removing it from the stereoscope, see Fig. 2. If a transparent material is used to make a stereoscope, a smartphone camera can scan a QR code to quickly find stereo images on the Internet or read text comments, also without removing the smartphone.

• When viewing stereopairs on cards, the open design of the stereoscope allows the maximum amount of light to penetrate the image, especially if the stereoscope material is transparent.

• assembly of the stereoscope is carried out without fasteners or adhesive materials only with the help of protrusions, slots, grooves and bendable valves.

SUBSTITUTE SHEET (RULE 26) The design of the stereoscope, see Fig. 2, includes a flexible elastic thin-walled plate 1, a panel for holding eyepiece lenses 2, eyepiece lenses 3, a carrier of a stereo pair 4.

Flexible elastic plate 1, bent during assembly of the stereoscope, allows, by changing the curvature of the bend, to hold different sizes of carriers of stereopairs 4. Holding occurs by means of valves 1a, which are part of the elastic plate and are bent at a certain angle during the initial assembly of the stereoscope. To increase the range of sizes of carriers of stereopairs, a flexible elastic plate can be made composite, with the ability to fix parts with different displacement relative to each other. Dividing the elastic plate into parts allows you to reduce the dimensions of the stereoscope in the initial state. In addition to the carrier of stereopairs, an elastic plate holds a flat panel with eyepiece lenses, and the carrier of stereopairs and lenses are located in parallel planes.

There are two ways to adjust the focal length - coarse and fine.

Another way is the variable installation of the panel with lenses into suitable mounting slots on the elastic plate, of which there are several.

The exact method is a slight deflection of the panel with eyepiece lenses, carried out by pressing the observer's nose on the panel.

The eyepiece lenses are installed in the slots of the flaps 2a, which are part of the panel 2 and are folded back at some angle during the initial assembly of the stereoscope. The slots allow the lenses to move along the panel, which makes it possible to adjust the lens distance.

To view the volumetric image, you need to bring the stereoscope with the carrier of the stereopair placed in it to the eyes with the side where the eyepiece lenses are located, holding the entire structure by a flexible elastic plate.

Disassembled, the stereoscope is compact and easy to store and carry, see.

Fig. 3

SUBSTITUTE SHEET (RULE 26)

Claims

Formula. 1. A collapsible lens stereoscope, characterized by the fact that it consists of an elastic curved thin-walled plate, which holds in parallel planes the carrier of stereopairs and a thin-walled panel with eyepiece lenses installed on it, and the elastic curved thin-walled plate can hold carriers of stereopairs of different sizes due to the change in bending curvature ... 2. A collapsible lens stereoscope according to claim 1, characterized in that the elastic curved thin-walled plate may consist of several parts. 3. A collapsible lens stereoscope according to claim 1, characterized in that a thin-walled panel with eyepiece lenses installed on it can be attached to an elastic curved thin-walled plate at different distances from the carrier of the stereopairs. 4. A collapsible lens stereoscope according to claim 1, characterized in that the eyepiece lenses are mounted on a thin-walled panel with the ability to move along it. 5. A collapsible lens stereoscope according to claim 1, characterized in that it allows the use of carriers of stereopairs in the form of cards and in the form of small-sized displays. SUBSTITUTE SHEET (RULE 26)