GB2124745A

GB2124745A - Antidazzle headlights

Info

Publication number: GB2124745A
Application number: GB08221509A
Authority: GB
Inventors: Aristidis Constanti Kotsifakis
Original assignee: Individual
Current assignee: Individual
Priority date: 1981-12-17
Filing date: 1982-07-26
Publication date: 1984-02-22
Also published as: EP0081725A1; GR68783B; GB2124745B

Description

1 A 1 1 i GB 2 124 745 A -1

SPECIFICATION

Headlights of vehicles that do not dazzle the eyes at the time of their meeting Based on the principles that the human eye,when itdoes notseethefocusofthe lightdoes notdazzle, I have5 devised the following way that solves the problem of dazzling, having to be faced by all drivers of vehicles at the time they meet the vehicles coming from the opposite direction.

In front of the whole luminous surface of a powerful headlight (projector) of a vehicle, I place a series of horizontal plates, not transparent, of a very slight thickness, which are at small and of equal size distances from each other, having a length (Drawing 1, Drawing 2).

When the system of projector (headlight)-plates is at an horizontal position and on the same straight line with the eye, then the eye sees the focus of the projector (headlight) and, consequently it dazzles.

We divert the system from its horizontal position, at one angle (elevation, Drawing 3e) it covers the end of the, immediately, next one. As however they are equal to each other and parallel, its beginning once again, covers the end of the -immediately- next one, and so on, (Drawing 3).

This way, we prevent the eye from seeing the focus of the projector (headlight) (Drawing 3,AB) and, therefore, it ceases to gettting dazzled. On the other hand, the rays of the light carry on being spread on a straight line, following the direction of the inclination of the system.

Following the afore mentioned principle, we can- even instead of using one-piece plates- divide each plate into two or more parts and place them at a small distance from each other (Drawing 4). Giving the angle of 20 the system, the luminous beam ceases to have an immense length and inevitably- it touches the ground and terminates at a certain point (in drawing 3, it is marked with the point Q.

The distance of the projector(headlight) from the point is as greater as smaller is the inclination of the system (projector-plates) from the horizontal direction (i.e. as smaller is the angle BAC, Drawing 3). The small inclination is being achieved by using either plates with a greater length or a much smaller distance 25 between them or both of them. Thus the beam touches the ground at a greater length, allowing the driver to control the area and, at the same time, not to be dazzling the one coming from the opposite direction, as well as the pedestrians. In orderthat the projector (headlight) follows that mathematical inclination, the upper surface (Drawing 3,d) of every plate should be blurred as, otherwise the inclination increases a little.

The result remains the same regardless of the shape of the projector (headlight), if -that is- it is square, 30 round, oval etc. The plates are always adjusted to the shape of the projector (headlight) maintaining of course their horizontal direction and the distance between them.

Also the common glass does not aff ect the result. It may therefore, be used in the front of the plates for protective reasons (as for instance, dust, rain etc.) Due to the fact that the roads show a convexity (curvature) and, therefore, a level difference between the 35 drivers, this is why we make the projector (headlight) movable. In this horizontal position the system may be used as the main projector, since it has an immense length, yielding better than the, already, available ones, as it creates a directed beam. In the first downwards, the angle we have, previously, mentioned is being formed as it ceases to getting blurred. The next of the scales cover all the cases of the convexity of the roads.

Also, one or more- having an upwards direction- cover the cavities. This way, the driver will be in a position- 40 at his own discretion- to give the system the angle that it will be needing. The system of plates-mirror luminous focus may move inside an immovable, protective shell. Furthermore, by keeping the projector (headlight) in a firm position, we can only move the plates either they are made firm with each other or they are independent.

These movements are easily achieved with the known techniques being applied, that is either mechanically (reds) or electromagnetically or hydraulically. It is for that reason that I do not suggest any way of motion as I do not consider that point as part of my invention. In the case of a permanent setting, the system is placed with a greater angle downwards so that it covers the altimetrical (altitudinal) difference of the convexity between the two vehicles at the distance that we desire to have in order to bypass. The altimetrical difference of the convexity is being figured out according to the specifications of the roads.

The projector (headlight) may have one powerful or more focuses taking also- the appropriate rays of the curves.

In order that we obtain the greatest eff iciency of the system and have the rays not caged (encircled), the curve ray of the mirror should follow the types of the physics, so that the rays -at the time they enter the plates -have already, taken a parallel direction with them. For facilitating them, we can buildup a cavity at 55 the side of the plates wherefrom the rays enter. Furthermore, in the front side of the convexity -at our discretion- achieves a greater diffusion of the rays.

Having the afore mentioned as granted, we may construct various types of projectors (headlights), at our volition, acting as follows:

Starting, according to how far we want the luminous beam to be from the vehicle, we figure out the length 60 of the plates and the distance among them. The width and the side angle of the projector (headlight), that we are going to use, depends on how big we intend the the width of the beam to be.

The battery of the plates is constructed either with independent plates that have been assembled or a cast-compressed battery. It can be constructed by using any sort of materials, provided that the materials are considered to be economical and satisfactory, as far as the endurance (strength) is concerned, so that 65 2 GB 2 124 745 A 2 extremely super-fine plates are constructed, capable of remaining inflexible, i.e. not to warp.

Because of the fact that the vehicles vary as for the height and the speed, a concrete (specific) system could not have covered all the cases. This is the only reason that 1 provide the rules of construction only and that 1 do not suggest any specific ones (and types) in dimensions and power. According to the case, we make the length, the width and the distance among the plates, elements that constitute the basic parts of my invention. On the basis of them, any experienced technician can construct the type that he prefers. The rest of the construction elements may come out as follows: The curve-ray of the mirror of the projector (headlight) from physics, varying in every dimension, whereas the system from the given facts of the (present) modern technology.

Brief description of the several views of the drawing

In the Drawing (1), there appears the parallel placing of the plates in a front view form.

In the Drawing (2), there appears the side view of the plates in a section.

In the Drawing (3), there appears, in an enlargement, the analysis of the angle, that is being formed 15 between the eye and the plates.

In the Drawing (4), there appears the side view, in a section, of the plates, this time divided in parts (sections).

Claims

1. Eight main claims and thirty dependent ones.

Ist (main): Horizontal, thin, non transparent, parallel and having an equal distance from each other plates, placed in front of the projector (headlight), having a certain lenght, proportionate to the desired length of the beam.

2nd (main): Plates of which the length has been divided into parts (sections). 25 Ist (depend): Plates having a greater length in order to achieve a greater length of the beam.

2nd(depend): Plates having a shorter distance from one another and the same length, so that we achieve a greater length of the beam.

3rd (depend): Both together.

4th (depend): A blurred surface of the upper part of the plate, for achieving (obtaining) the 30 mathematical inclination and for a greater length of the beam.

5th (depend): Shape of the projector (headlight): Parallelogram.

6th (depend): Square.

7th (depend): Round.

8th (depend): Trapeze. 35 9th (depend): Oval.

10th(depend): Lorenze (Rhombus) 1 '1 th(depend): With a glass in front of the system of projector-plates.

12th(depend): Without a glass in front of the system of projector (headlight) - plates.

3rd(main): Mirror, luminous focus, plates, glass are all connected with each other and constitute 40 one system.

4th(main): Utilisation of in from of the -already-existing projectors, as this results to the same effects -as regards the blurring- with the unique uniform system of projector-plates, originally constructed.

5th(main): A permanent, immovable system. 45 6th (main): A movable system of projector-plates. - 13th(depend): One scale downwards.

14th(depend): One scale downwards, one scale upwards.

15th(depend): Two scales downwards, one scale upwards.

16(depend): Three scales downwards, one scale upwards. 50 17(depend): Three scales downwards, two scales upwards.

18th(depend): Four scales downwards, two scales upwards.

19(depend): Two scales downwards.

20th(depend): Three scales downwards.

21st(depend): Four scales downwards. 55 7th (main): System of projector (head 1 ig ht)-pi ates that moves inside an immovable shell.

22nd(depend): Motion of fixed plates inside the immovable shell.

23rd(depend): Motion of independent plates among them, inside the immovable shell.

24th(depend): Motion with rods.

25th(depend): Hydraulic motion. 60 26th(depend): Electromagnetic motion.

8th (main): More than one luminous sources (focuses) in the projectorwith the curvature of the mirror, as defined by physics.

i 9 r X 3 GB 2 124 745 A 3 27th(depend): Cavity at the side of the plates, for facilitating the parallel entry of the luminous rays. 28th(depend): Convexity in the front of the side of the plates for a greater diffusion of the luminous rays (or another breakage). A cast-compressed battery of plates. Plates that may have been assembled together.

29th(depend):

30th(depend):

k I Printed for Her Majesty's Stationery Office, by Croydon Printing Company Limited, Croydon, Surrey, 1984. Published by The Patent Office, 25 Southampton Buildings, London, WC2A lAY, from which copies may be obtained.