SU1524871A1 - Apparatus for treatment and prophylaxis of myopia - Google Patents

Abstract

The invention relates to medical technology, to ophthalmic instruments for the treatment and prevention of myopia. The purpose of the invention is to provide opportunities for conducting research in low light conditions. The device includes a camera 1, a screen 2 with an object of observation, a mirror 3, an electric drive 4, an electronic unit 5, a stand 6 and a control panel 7. A mirror 3 is installed between the axles of the drive pulleys of screen 2. A mirror cleaner with a brush across the width of the mirror at the base of the screen 2. When the device is turned on, the bending ha provides a reciprocating motion to the screen 2. The luminous flux directly illuminates the screen and, in addition, light beams reflected from the mirror fall on the screen. In the process of moving the screen 2, the wiper also moves and cleans the mirror. 4 il.

Description

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The invention relates to medical technology, in particular to ophthalmic devices for the treatment and prevention of myopia of the eyes, based on vision training, and is in addition to the main author. № 1Л77376.

The purpose of the invention is to provide opportunities for conducting research in low light conditions.

Figure 1 shows the device, a general view with a partial cut-out, and the principle of the screen backlighting using a mirror; Fig. 2 shows the device while removing the side wall of the chamber; on fig.Z - screen and mirror cleaner; figure 4 is the same, side view.

The device comprises a camera 1 of a translucent material, a screen 2 with an object of observation, a flat mirror 3, an electric actuator 4, an electronic unit 5, a stand 6 and a control panel 7. A mirror 3 is installed between the axles of the pulleys 8 of the screen drive 2 (FIG. 2), mounted on flexible lines 9. The screen 2 is attached to a flexible cable ha 10, located above and below mirror 3 in the slots of the pulleys 8.

At the base of the screen 2, there is a groove 11 (Fig. 3) for mounting the mirror-like titel 12 in the form of a pin across the width of the mirror 2 on the longitudinal guides (Fig. 3 and 4). The brush is made of fur or velvety material. The fixing of the brush is carried out using a steel clamp. At end

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Two current-collecting inserts 13 with holes, made of copper-graphite material, are fastened to the brush holder. With their help, in the process of movement, the screen oscillations in the vertical plane are eliminated and electrical contact is provided in the rubbing parts of the wiring.

The device works as follows.

Claims (1)

The patient is placed with his back to the light source in front of the device so that his eye can be observed through the eye of the eye. When the device is turned on, the bending ha 10 provides the screen 2 with a reciprocating motion inside the chamber. The luminous flux incident on the upper part of the device illuminates the screen directly, and in addition, light beams reflected from the mirror fall on the screen. In the process of moving the screen 2, the mirror cleaner also moves and cleans the mirror. Invention Formula Device for the treatment and prevention of myopia by author. No. 1477376, characterized in that, in order to enable research to be carried out under reduced conditions, a reflector of light is installed perpendicular to the screen along the entire length of the chamber, and a mirror wiper is installed at the base of the screen on the longitudinal guides. FIG. g Fig.Z tJJui