DE7522987U - WIDE-ANGLE MULTIPLE LENSES - Google Patents

Description

Wide-angle multiple lens glasses

The innovation relates to multiple lens glasses, and especially wide-angle multiple lens glasses.

The investigation of traffic accidents has shown that a A significant percentage of these accidents are caused by the fact that the driver makes those traffic movements that are not are in the direct line of sight cannot be observed. The studies have shown that some drivers only have a very limited angle of vision and therefore others Road users who are crossing their direction of travel or are in an adjacent lane do not notice.

This is particularly the case with drivers who have had to undergo a cataract operation and are consequently strong Wear glasses. The lenses of these glasses, which can also have two focal lengths (bifocal lenses), allow one satisfactory view straight ahead, but significantly reduces the viewing angle of the spectacle wearer.

The task of the innovation is therefore to create suitable means to widen the viewing angle.

According to the innovation, this object was achieved by creating wide-angle multiple lens glasses, which are characterized is through lens holding organs and a multiple lens arrangement for at least one eye of the spectacle wearer, the Multiple lens arrangement consists of two or more adjoining lenses arranged in intersecting planes.

In one embodiment, the multiple lens arrangement consists of two lenses which are arranged in planes which « intersect each other at an angle of less than 180 ° to about 90 °. The lenses are arranged so that the one Lens is available as usual for the forward view !, while the second lens provides for the side view up to 90 °.

7522987 04/14/77

While the lens for the forward view can be ground as a bifocal lens, this is the case for the lens for the Sideways view is generally not necessary.

Instead of connecting two lenses at an angle of approx. 90 °, in some cases it is advantageous to have more than to connect two lenses together, the angles between the individual lenses being greater, the planes of the however, the first and last lenses intersect at an angle of approx. 90 °, so that a viewing angle of up to 90 ° is created from the forward direction. In these cases, the individual lenses can be narrower, so several lenses fit in the available space.

Instead of connecting the lenses to one another at their edges, they can also be formed in one piece with one another. In the case of plastic lenses, they can be molded in one piece, with minor grinding if necessary Corrections can be made.

About the production of injection molded multiple lenses in one To make things easier, the base lenses can be injection molded as multispherical lenses. The cylinder curvature can be in the form of a separate part made of plastic or glass

be provided, which is attached to the front or back of the front lens.

The added part can be both spherically and cylindrically curved to the focal length of the primary lens to zoom in or out.

The part added can also be prismatic. Similarly, bifocal segments can be viewed as separate Lenses are attached to the main lenses at optimal angles and with a separate prismatic design.

Such wide-angle multiple lens arrangements can be used in any suitable manner for glasses, e.g. Glasses with frames or other means of holding (rimless glasses).

Some embodiments of the innovation are shown in the accompanying drawings. Here are:

Fig. 1 is a perspective view of half-frame glasses incorporating a multiple lens arrangement with two adjacent lenses;

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FIG. 2 shows a side view of the lens arrangement of FIG. 1 with a separate lens part for correcting the Cylindricity of one lens;

Fig. 3 is a perspective view of a two-lens arrangement in which the one lens in an enlarged Side arm of the glasses frame is housed;

Figure 4 is a perspective view of a wide angle three lens assembly ;

FIG. 5 shows a perspective view of the lens arrangement from FIG. 4 with rimless glasses; FIG. and

6 is a perspective view of a pair of glasses in which the multiple lens assembly and the nasal bridge are formed integrally with one another.

The glasses shown in FIG. 1 are of the so-called half-frame type and consist of two upper parts 1 and 2 which are connected to one another by means of a nose bridge 3. Side arms 4 and 5 are hinged to the upper parts 1 and 2, respectively. The frame is equipped with two wide-angle _T multiple lens arrangements € 6 and 7 . Each of these arrangements consists of

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two lenses 8 and 9, along the line 10 with each other are connected. The lens 8 is the usual front lens of the glasses and can be ground as required e.g. as a bifocal lens so that a near vision segment is provided. Instead of the lenses 8 and 9 along the line 10 To connect to each other, they can be integrally molded from plastic or glass. Fig. 2 shows a somewhat enlarged Scale is a side view of the wide angle multiple lens assembly 6, with a separate lens part 12 made of glass or plastic on the back of the lens 8 for correction purposes is attached, especially when the wide-angle multiple lens assembly 6 is an injection molded part.

The wide angle multiple lens assemblies 6 and 7 are well known Attached to the frame by gluing the front lenses into the upper parts 1 and 2.

3 shows a further exemplary embodiment of glasses with wide-angle multiple lens arrangements.

In this embodiment, the front lenses 13 are mounted in a frame 14, while the side lenses 15 in an opening of the enlarged side arm 16 of the spectacle frame are mounted.

As already mentioned above, it can be advantageous to use more than two lenses in order to achieve the wide-angle effect to use. Fig. 4 shows such a wide-angle multiple lens arrangement in which three lenses 17, 18 and 19 along lines 20 and 21 are connected to one another. Optionally, the three lenses can also be made in one piece be formed with each other.

FIG. 5 shows the lens arrangement of FIG. 4 when used for rimless glasses. In this case one connects The nose bridge 22 is the two lenses 17 of the lens assemblies in a known manner, and the side arms 23 of the glasses attached to the top of the lenses 18 and the nasal bridge 22.

As shown in FIG. 6, there is also the possibility of using the multiple lens arrangements for both eyes of the spectacle wearer to be formed in one piece with one another, including the nasal bridge. In this case, it becomes a two-lens arrangement used with lenses 24 and 26 and the nasal bridge 27. The side arms 28 are in a known manner attached by means of brackets.

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The above description relates to a few exemplary embodiments, it must be emphasized that further exemplary embodiments are conceivable, for example using Fresnel lenses.

Furthermore, the lenses can be made of colored, light-absorbing material for optical or cosmetic reasons will.

Claims (7)

EXPECTATIONS 1. Wide-angle JMehrfachlinsexibrllle, marked ne t through lens holder racks and a Multiple lens arrangement made up of two or more adjoining, intersecting planes Lenses for at least one eye of the spectacle wearer. 2. Wide-angle multiple _{lens glasses according to claim l r,} characterized in that adjoining lenses enclose ainen angle of less than 180 ° and not less than 90 °. 3. Wide-angle multiple lens glasses according to claim 1 and 2, characterized in that the multiple lens arrangement has a main lens and at least one side lens, the main lens being a bifocal lens. 4. Wide-angle multiple lens glasses according to one of the claims 1 to 3, characterized in that the multiple lens arrangement is integrally molded from plastic. - 10 - - 10 - 5. Wide-angle multiple lens glasses according to one of Claims 1 to 4, characterized in that at least one de: lenses over an additional, separately ground Lens part on the front vein rear side of the lens can be tailored to individual needs. 6. Wide-angle multiple lens glasses according to one of claims 1 to 5 _f, characterized in that the lens holder means consist of a glasses frame which has a main frame and associated, enlarged side arms with lens openings, one of the lenses of the multiple lens arrangement in the main frame, the other lens or The other lenses of the multiple lens arrangement are mounted in the corresponding side arm. 7. Wide-angle multiple lens glasses according to one of the claims 1 to 5, characterized in that the lenses of the multiple lens arrangement adjoin one another are permanently connected, and that the lens holder means have a nose bridge-i which is connected to one of the Lenses is connected, and that the corresponding side arm is connected to another lens. - 11 - 7522981 • · · I - 11 - Wide-angle multiple lens glasses according to one of the Claims 1 to 5, characterized in that a multiple lens arrangement for each eye of the spectacle wearer is provided, the two multiple lens arrangements together with a nose bridge, which the connects both multiple lens arrangements with each other, is molded in one piece.