SU1413577A1 - Blinding-control eyeglases - Google Patents

Description

(21) 4061482 / 24-10

(22) 03/24/86

 (46) 07/30/88. Bul Number 28

(71) Kazan Aviation Institute. A.N. Tupolev

(72) V.M. Ivanov

(53) 681.427 (088.8;

(56) USSR Copyright Certificate No. 1005787, cl. A 61 F 9/02, 1983.

(54) Anti-Sight Goggles

(57) The invention relates to optics and solves the problem of local shading of radiation from a car. The glasses contain oculars, each of which has a luminous flux modulator, which changes its transmission under

blind spot action. The modulator is made of two polarizers 6 and 7, between which there is a layer of nematic liquid crystal 11 and transparent electrodes 8 connected to the power source 2 through photoconductors 3. Light from car headlights is reflected from the retroreflector 1 to a group of photoconductors 3 lines connected to the electrodes 8 in the form of stripes. At the same time, the section of the liquid crystal 1 between these electrodes is darkened, shielding the rays from the headlights of the automobiles, falling into the eye. Light reflector. 1 is located in a plane passing through the optical axis of the ocular. 2 Il.

ABOUT

The invention relates to anti-glare devices primarily for vehicle drivers and can be applied in welding work and in metallurgy and solves the problem of local filtration of several moving light sources.

The aim of the invention is to improve the observation conditions due to the shield-8, which obscures the rays, and the local shadow shade.

FIG. 1 shows a diagram of the operation of each ocular; Fig, 2 - the eyebol r, section.

The glasses consist of two oculars on which light beam modulators are applied, retroreflective reflectors

in the eye. When the light sources are shifted to the side, the directions of the rays reflected from the retro-reflectors 1 change accordingly, while 5 other photoconductors are illuminated and other regions of the crystal are shaded between the transparent electrodes. When there are several moving light sources, the light

1, power supply 2 and photoconductor bars 3. Modulators include

polarizers 4 and 5, outer 6 and inner-2 valves 1 reflect the rays from each

early 7 substrates, transparent electr-sources separately and appear 8 and 9, made in the form of stripes, with darkening in several areas

the gasket 10 and the layer of nematic liquid-crystal 11, simultaneously shaded

whom crystal 11. Light reflector from these sources. Wherein

1 are made in the form of two mutually perpendicular obstruction of each other.

from each other, and the electrodes in the two oculi are not parallel to each other.

This implementation of the proposed mouth

pas and mirror mirrors and are located behind the ocular under some angle to the plane of the ocular so that they can be reflected from external light sources

it, hit the photo goggles 3, jO of the property improves the visibility of the nearby. The outer substrate 6 is bent behind the working area around the light sources with rum, and on this curved surface photoconductors 3 are sprayed, connected to one side through a common

and local filtering of multiple sources, which is important for vehicle drivers.

Well, to the power source 2, and on the other - to the ends of the corresponding. transparent electrodes 8. Polarizers 4 and 5 are deposited on the outer sides of the substrates 6 and 7. To align the reflector 1 with the center of the eye, the latter is attached to the frame 13 and provided with a handle 12, which provides movement, the reflector along the normal to the plane of the drawing.

The device works as follows.

Rays from light sources S ,, S,

Antidazzle glasses containing a frame with oculators and luminous flux modulators applied to them, made each of two polarizers and transparent electrodes, between which a layer of nematic liquid crystal is placed, and the electrodes are connected to a power source through a photoconductor, characterized in that in order to improve conditions

pass through the modulator fall into

eye, at the same time, other beams from maintenance due to the provision of local sources 5 g.1 modulator, shadowing, electrodes made

They are given to the retroreflector 1 and, reflected in the form of strips, and the photoconductors, as seen from the latter, get into the photo- 50d line of photoconductors and subconnecting conductors 3, which switch to the power supply through the common

cancer electrodes. At the same time, on the pro-bus, at the same time, in the planes, the passage of the illuminated portions of the photoconductive through the axis of the oculars,

3 significantly increases resistance to light reflectors.

layer of photoconductors, and in unlighted areas, the resistance remains quite large. Therefore, in the liquid crystal layer 11 under the switched on transparent electrode 8, rotation of the plane of polarization of light leads to darkening of these areas of the crystal between transparent electrons in the eye. When the light sources are shifted to the side, the directions of the rays reflected from the retro-reflectors 1 change accordingly, while other photoconductors are illuminated and other areas of the crystal are shaded between the transparent electrodes. When there are several moving light sources, the light

from each other, and the electrodes in the two oculi are not parallel to each other.

Such an implementation of the proposed device improves the visibility of the nearby area around light sources.

and local filtering of multiple sources, which is important for vehicle drivers.

Claims (1)

Invention Formula Antidazzle glasses containing a frame with oculators and luminous flux modulators applied to them, made each of two polarizers and transparent electrodes, between which a layer of nematic liquid crystal is placed, and the electrodes are connected to a power source through a photoconductor, characterized in that in order to improve conditions Fig.G