RU2578516C2 - Glasses with electronic change of focus for vehicle drivers (oeif) - Google Patents

Abstract

FIELD: optics.

SUBSTANCE: glasses have optically transparent lens from optically transparent dielectric polymer with a given refraction index, between which is enclosed liquid crystal film, and surfaces contain electrodes in form of optically transparent electroconductive film, device of changing focal distance of lens and a power supply. Glasses comprise additional installed in holder control signal receiver and a control voltage. Vehicle is fitted with transmitting device and system for monitoring direction of gaze driver - eye tracker, which comprises adjustable unit for storing directions of gaze of driver - zones for which eye tracker by transmitter generates control signal to receiver points corresponding signal to change focus lenses of eyeglasses.

EFFECT: technical result is improved traffic safety and ease of control for drivers using said glasses when driving.

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Description

The invention relates to a device to improve traffic safety and improve driving conditions for drivers, which shows the use of glasses when driving.

Known hydraulic glasses [1], the curvature of the lenses which changes in accordance with the pressure created by a special engine, as well as glasses with electronic focus change [2] to be able to clearly see close and long distances.

The disadvantages of the known devices are the need to manually switch the pressure [1], or potential [2], or tilt the head to change the magnitude of the focus of the lenses of glasses [2].

The closest in technical essence and selected as a prototype are "Glasses with electronic focus change" [2], containing a liquid crystal film with an electric field guidance device in it.

The disadvantages of the prototype.

To change the focus of the lenses of glasses, it is necessary to touch a certain area of the frame of glasses or glasses or change the position of the head, for example, tilt, while the driver is forced to distract from driving.

The claimed technical solution is aimed at improving the safety of vehicles by improving the driving conditions for drivers, which show the use of glasses when driving.

1. This is achieved by the fact that, in contrast to the well-known solution "Glasses with electronic focus change" [2], which includes optically transparent lenses that are made of elements of an optically transparent dielectric substance - a polymer with a given refractive index, between which at least one liquid crystal film, and the surfaces contain electrodes - optically transparent electrically conductive films, a device for switching the focal length of the lenses of glasses and a power source, glasses with electronic focus change for I drivers of vehicles (OEIF) contain a control signal receiver and a driver of control voltages mounted in the spectacle frame, and the vehicle has a transmitting device and a driver’s eye tracking system — an itracker, which contains a custom node for storing the driver’s eye directions — zones, for which the eyerecker, by means of a transmitting device, gives the corresponding signal to change the focus of the lenses of the glasses to the receiver of the control signal of the glasses.

2. In addition, the glasses contain a switch forcibly changing the focus of the lenses of the glasses.

3. In addition, the glasses contain photocells for contactless recharging the power source of the glasses.

4. In addition, the IT tracker includes a device for monitoring the state of a vehicle driver.

The proposed technical solution is illustrated using FIG. one.

In FIG. 1 shows glasses with electronic focus change for vehicle drivers (OEIF).

In FIG. 1 and the following notation is used in the text:

1 - optically transparent lenses that are made of elements of an optically transparent dielectric substance - a polymer with a given refractive index, the surfaces of which contain electrodes,

2 - liquid crystal film (LCD),

3 - frame glasses

4 - photocells for contactless recharging the power source of the glasses,

5 - receiver control signal.

Thus, glasses with electronic focus change for vehicle drivers (OEIF) include optically transparent lenses (1), which are made of elements of an optically transparent dielectric substance - a polymer with a given refractive index, at least one liquid crystal film (2), the surfaces contain electrodes - optically transparent electrically conductive films, a device for switching the focal length of the lenses of glasses, a power source, and also contain a receiver receiver installed in the spectacle frame (3) a signal (5) and a driver of control voltages, and a vehicle has a transmitting device and a driver’s eye tracking system — an itracker, which contains a custom node for remembering the driver’s eye direction and additionally includes a switch for changing the focus of the lenses of glasses, photocells (4) for contactless recharging the power source of the glasses, and the IT tracker contains a device for monitoring the state of the driver of the vehicle.

The device operates as follows.

While the vehicle is moving, the driver, observing the road, road conditions, must monitor the readings of devices and indicators on the dashboard of the vehicle, looking at them, as well as the controls and information display devices, for example, the navigator screen, multimedia systems, but when you set the focus of the lenses of the glasses over a long distance for the near zone, the optical system of the driver’s eyes will be defocused, and for the normal vision of small details, for example, the image on on the navigator’s screen, it is necessary to switch the focus of the lenses to a short distance, for example, by means of a pressure change slider in the hydraulic system [1], or by touching the spectacle frame [2], or by tilting the head [2], which requires an appropriate time and that distracts the driver from driving the vehicle, and also does not allow the driver to instantly look from the road to the dashboard of the vehicle and back, because It also requires mechanical action, which distracts the driver and, accordingly, reduces road safety.

In the proposed device "Glasses with electronic focus change for drivers of vehicles" (OEIF), including optically transparent lenses (1), which are made of elements of an optically transparent dielectric substance - a polymer with a given refractive index, between which at least one liquid crystal film is enclosed (2), the surfaces of which contain electrodes - optically transparent electrically conductive films, an electronic device for switching the focal length of the lenses of glasses and a power source - batteries or a battery, as well as a control signal receiver (5) installed in the spectacle frame (3), for example, an infrared (IR) receiver, and a control voltage generator - potentials that are supplied to optically transparent electrodes, and a transmitter is installed on the vehicle dashboard , similarly, for example, an infrared (IR) transmitter and a driver’s eye-tracking system - an IT tracker [3], which contains a driver that is customizable, for example by pressing a button on the dashboard, the unit is memorized I driver's eye gaze directions - zones for which aytreker by the transmitter outputs a control signal receiver (5) points corresponding signal to change the focus lens points.

For the initial installation of the OEIF into the operating mode, the driver, from the control panel installed on the dashboard of the vehicle, enters a command to switch the focus of the lenses of the glasses, for example, to a short distance and with a look indicates the perimeter of the contour of that zone or those zones in which the eye tracker gives out a signal, for example, of a given frequency or code by means of a transmitting device - an infrared emitter (IR) or a high-frequency transmitter - to the receiver of the control signal (5) points for the corresponding switch focusing lenses glasses.

After remembering the zone / zones for which it is necessary to change the focal length of the lenses of glasses, the itracker automatically tracks the direction of the driver’s gaze and switches the focus of the lenses of the glasses as soon as the gaze is directed to the corresponding zone, or gives a signal of a different frequency or other code when the gaze leaves the designated node storing directions of the view of the zone / zones.

This will allow the driver of the vehicle not to be distracted by switching the focal length of the lenses of the glasses, not to strain eyesight and, accordingly, to lose time adapting the eyes to changing the distance when using the driver of unregulated glasses, and thus, the OEIF will significantly facilitate the management of the vehicle and increase traffic safety.

In addition, the OEIF contains a switch for changing the focus of the lenses of glasses and disabling the itracker, which is installed in the spectacle frame (3) and / or on the dashboard of the vehicle, which may be necessary, for example, when using glasses outside the vehicle.

A power supply for glasses, such as a battery, is mounted in the frame of the glasses and can be recharged by connecting to an external charger and / or contains a system of remote, contactless charging using photocells (4) installed in the frame of the glasses (3), which are illuminated by an external, natural or artificial lighting and / or an additional infrared emitter installed in the vehicle.

Additionally, the ittracker contains a device for monitoring the state of the driver of the vehicle [3], which monitors drowsiness and attention based on tracking the driver’s eyes, and, if necessary, gives an appropriate sound signal and / or sends a signal for automatic braking.

The use of the invention will allow: to increase the safety of vehicles and facilitate driving conditions for drivers who are shown the use of glasses when driving.

LITERATURE

1. US Patent 7,008,054, G02C 1/00, March 7, 2006.

2. US Patent 8.408.699 B2, G02C 7/00, 06/23/2006.

3. WO 2011089199 A1, G06F 3/01, 01/20/2011.

Claims (4)

1. Glasses with electronic focus change for drivers of vehicles, including optically transparent lenses, which are made of elements of an optically transparent dielectric substance - a polymer with a given refractive index, between which at least one liquid crystal film is enclosed, and the surfaces contain electrodes - optically transparent electrically conductive films, a device for switching the focal length of the lenses of glasses and a power source, characterized in that they contain mounted in the frame of glasses at a control signal receiver and a driver of control voltages, and a vehicle has a transmitting device and a driver’s eye tracking system — an itracker, which contains a custom node for storing the driver’s eye directions — zones for which the itracker sends a corresponding glasses signal to the receiver signal to change the focus of the lenses of the glasses. 2. Glasses according to claim 1, characterized in that they contain a switch forcibly changing the focus of the lenses of the glasses. 3. Glasses according to claim 1 or 2, characterized in that they contain photocells for contactless charging of the glasses power source. 4. Glasses according to claim 1 or 2, characterized in that the IT tracker contains a device for monitoring the state of the driver of the vehicle.

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