SU1519643A1 - Apparatus for investigating binocular spatial vision - Google Patents

Abstract

The invention relates to the study of binocular and stereoscopic mechanisms of spatial vision, their power relationships and allows to increase the accuracy of the study. In accordance with the method of providing test eyes to each eye through optical systems, displaying test objects synchronously rotating in one or in opposite directions and measuring the depth of the funnel-shaped structure that is illusory when perceived by the patient. The device consists of a base 1, two symmetrical racks 2 and a central pillar 6, on which a rod 10 is attached with movement with a luminous mark 11 and an apparent depth indicator 12, test objects 5 mounted on axes of selsins 4 fixed on side racks 2, optical systems 7 with deflecting prisms, chin rest 14. Due to the synchronous change in the distance between the optical systems 7, a measurement of the perceived depth is carried out. Due to the synchronous rotation of the test objects 5, the holistic visual image of the perceived volume is preserved, which is determined by means of a retractable rod with the mark 11. 2 Cp. f-ly, 1 ill.

Description

The invention relates to psychophysiolo | AI and medicine, in particular to the study of binocular and stereokinetic mechanisms of spatial vision and their power relationships.

The purpose of the invention is the accuracy of the study.

This goal is achieved by the fact that, according to the method of investigating a binocular spatial vision, which involves presenting each eye through the optical systems of the test objects, test objects are presented simultaneously in either the same anti-obstruction directions.

The drawing shows a device for carrying out the method.

The device includes a base 1, two symmetrical pillars 2, on which the electric motor 3 is fixed, selsyns 4, and devices for interchangeable test objects 5 installed on their axes. On the central rack 6 they are simultaneously synchronously moved apart optical systems 7, made in the form of deflecting prisms, with a knob 8, strengthened, - | en () on an axis with right and left threads, and a scale 9 indicating the distance between the optical systems 7. A slide rod 10 is also mounted on the B-rack, at one end of which there is a light with brand 11, and at the other a decree 12 Tel apparent depth. The countdown is calculated on a scale of 13.

The device is equipped with a chin 14 and a remote control 15 controls.

The device works as follows.

The subject is offered to place his head on the chin rest 14. The phenomenon of physiological duplication of double images and fusion of images of adjacent bifurcated elements is used, in which the subject has the feeling of a three-element image from which the right and left elements are monocular, and the average intensity is binocular - those. 1 in a manner in which it is felt from flat test objects 5. The subject is asked to fix it and determine the perceived depth with the help of an illuminated And mark with stationary and rotating test objects. Iio depth The iy of the volume is determined with the help of the sliding rod 10 with the mark 11. The ball spatially is combined with equidistant elements of the perceived volumetric test object. Using pointer 12 through 13, its apparent depth is fixed.

0

five

0

five

0

five

0

five

0

In order to preserve the integral visual image of the perceived volume during rotation, it is necessary to ensure the synchronism of the rotation of the test objects. This is achieved by using selsins 4, rotated by an electric motor 3. To qualitatively change the spatial visual effect with careful synchronization of rotation, the direction of rotation of the test objects is changed. This is achieved by switching one of the windings of the selsyn 4.

The device allows measurements of perceived depth at various angles of convergence. This is achieved by synchronously changing the distance between the optical systems. 7 by rotating the axis with the right and left threads by the knob 8. The distance between the optical systems is measured on a scale 9 of the sliding mechanism.

The method and apparatus provide an accurate quantitative study of binocular spatial vision. At the same time, the device allows accurately and qualitatively registering the interaction of binocular and stereokinetic mechanisms.

Claims (2)

Invention Formula  A method of examining binocular spatial vision by simultaneously providing rotating eye test objects to each eye, characterized in that, in order to increase the accuracy of the examination, test objects are presented synchronously in one or opposite directions and measure the depth of the illusory perceptible this patient funnel structure. 2. A device for testing, binocular, one-dimensional spatial vision, containing a base, an optical system, the elements of which are installed with the possibility of mutual movement of test objects, a chin rest, a control panel, and an engine, it is provided with a rod with a lighted mark and a depth gauge with a scale attached to the central rack with the possibility of longitudinal movement. In this case, the test objects are installed on the axes of two selsyns fixed on the side racks, and the optical system is made in the form of two glued prisms with silvered inner surfaces.