FR2469734A1 - Anti dazzle type spectacles - has lenses made up of dark and lighter semicircles rotated in circular housings by finger pressure - Google Patents

Abstract

The spectacles are for anti dazzle purposes against sun, headlamps or welding arcs. The lenses (3) are darkon one half and the other half can be yellow. They are set in a circular mounting (4,5) and turn under finger pressure. The half area is defined by the lens diameter. The second half can also be colourless and, in any case, the colour separation is sharply defined. The lens mountings are mounted in circular parts of the spectacles and held by grips. The frame carries the usual bridge and nose pieces and ear legs (6).

Description

 The device, object of the invention, relates to anti-dazzle glasses for multiple uses.

 In known devices of this kind, there are conventional glasses to reduce the clarity of the sun, they have fully tinted glasses.

 We also know the slightly tinted eyeglasses, for a mainly aesthetic purpose, not related to the invention.

 The glasses, object of the present, make it possible to avoid the glare of the sun during the day as well as that of the vehicles, by driving at night, while allowing a good visibility, in particular, in the last case. These glasses can also be used in foggy weather.

 The device, object of the present, comprises a pair of glasses, the frame of which is provided with means suitable for rotating round glasses. The latter are strongly tinted in a dark color such as, brown, gray, on one half of their surface, delimited by a median axis; the other half is tinted yellow to increase the brightness, or remains neutral, colorless. The median separation of each glass is very pronounced by the fact that the colors are uniform over their entire extent.

 The glasses can be rotated manually with the fingers, one after the other; in this case, the lenses can very easily rotate in their frame formed by the circular parts of the frame.

 According to another variant, the lens is embedded on a round frame, which is positioned and rotates in a circular part of a frame for a pair of glasses.

 The rotation of the glass allows the tinted part to be positioned in different positions; tinted horizontally, at the top of the glasses, to protect from the sun; said tinted part will be brought vertically to the side, for each lens, to avoid dazzling caused by oncoming cars, when driving at night.

 The tinted part brought back to the bottom of the glasses will be a position more particularly used for tasks in the workshop, such as welding, etc.

 The present device is naturally adaptable for spectacles comprising corrective and unbreakable lenses, as well as on plastic lenses.

 The accompanying drawings illustrate by way of nonlimiting example an embodiment of the device according to the invention.

 The description below, together with the figures, will allow a better understanding of the invention.

 Figure I shows the positioning of the lenses to avoid glare when driving at night.

 Figure II shows another positioning of the glasses to attenuate the sunlight.

 Figure III shows, in plan, a glass set in its partial frame.

 Figure IV shows a section of a glass set in its frame along the axis AA carried in Figure III.

 Figure V shows a pair of glasses with the part, tinted glasses, positioned at the bottom.

 Figure VI shows an alternative frame design.

For night driving, as shown in Figure I, the tinted part 1 of the glasses will be positioned vertically or slightly oblique, on the right, so that the driver can, by slightly deviating his head, on the right,
be protected from the headlights of cars, while controlling its
position relative to the ditch across part 2
transparent or yellow glasses.

Against the rays of the sun according to figure II, the
head oscillations will be on a vertical plane.

According to Figures III, IV and V, the glasses 3 are embedded
in a circular mount 4, so that they
can rotate under finger pressure. Edges 5,
4 circular parts of the frame, may be
slightly flexible to allow interchangeability of
glasses. Other parts of the frame such as
branches 6 will preferably be rigid.

Figure VI shows a first design variant
of the frame, the lenses 3 are held by clips 16
integral with the upper part 7 of the frame. The
clamps 16 consist of iron rods curved inward. Just press to
remove the glasses held by the clamps 16.

Figure VII is a section along the axis AB carried on
Figure VIII.

Figure VIII shows a second variant of
frame design according to the invention. Glasses 3
are set respectively in a round frame 8;
the latter is positioned in the circular part 9 of
the frame 12 of the glasses. The frames 9 are articulated in
10 and open at 11 to allow positioning of the
8 frames with lenses. Mount 8 rotates on the
mount 9 by exerting a rotary movement on the edges.

Figures IX and X represent an alternative application
tinted lenses to fit prescription glasses.

Figure XI is a section along the axis CC carried on
Figure IX. The lens 3 is held in the frame 14 and
placed on glasses by hooks 13.

 Figure XII is a third variant of frame design according to the invention. The glasses 3 pivot on a median axis 15 and are immobilized by the rotary clamp 16.

 The present invention is more particularly intended for night drivers but can be used more generally against the sun, or in all tasks which tend to spoil the view.

Claims (9)

CLAIMS 1) Goggles making it possible to counter glare during the day against the sun, at night towards the headlights of oncoming vehicles, or during tasks such as welding, etc., characterized in that the glasses are tinted on one half in dark and on the other half in yellow and are set on a rotating circular mount under the pressure of the droids. 2) Device according to claim 1, characterized in that the glasses strongly tinted dark on half of their surface are delimited by a median axis. 3) Device according to claim 2, characterized in that the other half can remain neutral, colorless. 4) Device according to claims 1 and 2 characterized in that the colors are uniformly pronounced over their entire extent. 5) Device according to claim 1, characterized in that the median separation formed by the colors, is very contrasted. 6) Device according to claim 1, characterized in that two round frames, in which are embedded the lenses, are positioned in the circular parts of the glasses. 7) Device according to claim 6, characterized in that the frames, encasing the lenses, rotate on the frames of the glasses. 8) Device according to claim 1, characterized in that the glasses can be held by clamps integral with the frame of the glasses. 9) Device according to claim 1, characterized in that the glasses can rotate in their frame.  13) Device according to claim 1, characterized in that the lenses can pivot respectively on a fixed horizontal axis at each end on the frame. 11) Device according to claim 1, characterized in that the tinted glasses can be mounted individually to be positioned on glasses.