Spectacles and use of spectacles having a spectacle frame and an additional frame

Abstract

Spectacles having a spectacle frame and at least one additional frame that can be placed on the front of the spectacle frame so as to be removable, both frames having lenses made of transparent material. The lenses of the spectacle frame are varifocal lenses for the purpose of correcting vision for different distance ranges in order to achieve in each case maximum or clear visual acuity for at least one distance range, while the lenses of the additional frame are single-vision lenses or varifocal lenses. In combination with the lenses of the spectacle frame, the lenses of the additional frame correct vision in a manner customized to the needs of the user. In a simple, cost-effective and convenient manner, a broad field of sharp vision in all distance ranges is afforded to the user, and therefore significantly improved vision comfort tailored to their requirements is provided.

Claims

1. Spectacles, having a spectacle frame (11) and at least one additional frame (20) that can be placed on the front of said spectacle frame so as to be removable, both frames having lens disks (12, 22), made of transparent material, such as for example glass, wherein, when the additional frame (20) is placed on the spectacle frame (11), the lens disks (12, 22) at least partially overlap and run approximately parallel, or parallel, to one another, characterized in that the lens disks (12) of the spectacle frame (11) are varifocal lens disks for the purpose of correcting vision for different distance ranges in order to achieve in each case maximum or clear visual acuity for at least one distance range, while the lens disks (22) of the additional frame (20) are single-vision lens disks or varifocal lens disks which, in combination with the lens disks (12) of the spectacle frame (11), correct vision in a manner customized specifically to the needs of the user.

2. The spectacles according to claim 1, characterized in that the lens disks (12, 22) both of the spectacle frame (11) and also of the additional frame (20) are each provided with at least one vision correction such that they possess a refracting effect customized to the vision of the user and, therewith, the desired visual acuity, in particular for a short, middle and/or a long distance range, is made possible.

3. The spectacles according to claim 1, characterized in that the deviation of the compensation of maximum to clear visual acuity with the vision correction in the short, middle and/or long distance range of the varifocal lens disks of the spectacle frame (11) or the combination thereof with the lens disks (22) of the additional frame (20) is established at a specific amount of selectable correction strengths, for example +0.75 dioptres.

4. The spectacles according to claim 1, characterized in that the lens disks (12, 22) are cast and can be made from different materials, for example as tinted lens disks.

5. The spectacles according to claim 1, characterized in that the lens disks (12, 22) running approximately parallel, or parallel, to one another when the additional frame (20) is placed on the spectacle frame (11), overlap and are dimensioned externally approximately the same, or the same.

6. The spectacles according to claim 1, characterized in that the additional frame (20) can be placed on the front of said spectacle frame (11) so as to be removable by means of fixing elements (25, 26).

7. The spectacles according to claim 6, characterized in that the additional frame (20) has a connecting member (24) holding the mounting parts (23) to the lens disks, which connecting member is slightly arcuate and spring-loaded, with the result that, for attachment or removal, the mounting parts (23) with the lens disks can be pressed apart a little by manually stretching the connecting member (24) apart from one another.

8. The spectacles according to claim 7, characterized in that after stretching the connecting member (24), these hook-shaped fixing elements (25, 26) attached in pairs on the outside of the mounting parts (23) can be pushed outwards over the mounting (13) of the spectacle frame (11), and, when releasing and springing back the connecting member (24), the mounting parts (23) move back into the arcuate state, and the fixing elements (25, 26) clasp the mounting (13) of the spectacle frame.

9. A use of spectacles according to claim 1, having a spectacle frame (11) that can be placed on the front of the at least one spectacle frame (20) so as to be removable, wherein varifocal lens disks are used for the lens disks (12) of the spectacle frame (11), which varifocal lens disks correct vision for different distance ranges to achieve the desired vision comfort of the user, characterized in that single-vision lens disks or varifocal lens disks are used for the lens disks (22) of the additional frame (20), which lens disks provide at least one additional vision correction compared with these lens disks (12) for different distance ranges in combination with the lens disks (12) of the spectacle frame (11), wherein the vision corrections provided with the lens disks (12) of the spectacle frame (11) and combined therewith, are specifically customized with those of the additional frame (20) to the vision comfort desired by the user.

Description

[0017] The invention and further advantages of same are explained in more detail below using embodiment examples, having reference to the drawings. There are shown in:

[0018] FIG. 1 is a perspective top view of spectacles according to the invention having a spectacle frame and an attached additional frame;

[0019] FIG. 2 is a perspective top view of the separate spectacle frame according to FIG. 1; and

[0020] FIG. 3 is a perspective front view of the unattached additional frame.

[0021] FIG. 1 shows spectacles 10 having a spectacle frame 11 and an additional frame 20 that can be placed on the front of said spectacle frame so as to be removable, both frames having lens disks 12, 22, made of transparent material, such as for example glass. Conventionally, the spectacle frame 11 consists of a mounting 13 holding the lens disks 12, which mounting has a central connecting part 17, on each side of which a joint 14, an arm 15 housed pivotable thereon for holding the frame to the ears, as well as support elements 16 to stabilize the spectacles on the nose.

[0022] This mounting 13 with the arms 15 can be developed to have any shape and made from different materials and sizes as required. The lens disks 12, 22 can also be shaped to be correspondingly customized, and can be made from glass, plastic, a combination of these materials or from other materials.

[0023] The lens disks 12, 22 both of the spectacle frame 11 and also of the additional frame 20 are each provided with vision correction such that they possess a refracting effect customized to the vision of the user and, therewith, the desired visual acuity, in particular for a short, middle and/or a long distance range, is made possible.

[0024] According to the invention, the lens disks 12 of the spectacle frame 11 are developed as varifocal lens disks for the purpose of correcting vision for different distance ranges in order to achieve in each case, maximum or clear visual acuity for at least one distance range, while the lens disks 22 of the additional frame 20 are developed as single-vision lens disks or varifocal lens disks which, in combination with the lens disks 12 of the spectacle frame 11, correct vision in a manner customized specifically to the needs of the user.

[0025] Thus, for example the varifocal lens disks of the spectacle frame 11 can be designed especially for maximum vision in the far-sightedness range, whereas in the medium to short-distance range they do not possess the full corrective effect.

[0026] The deviation of the compensation of maximum to clear or not fully corrected visual acuity with the vision correction in the short, middle and/or long distance range of the lens disks 12 of the spectacle frame 11 or the combination thereof with the lens disks 22 of the additional frame 20 is established at a specific amount of selectable correction strengths. Thus, for example, short-distance vision correction can be +1.5 dioptres at maximum visual capacity, whereas the effective correction is designed at only +0.75, thus 0.75 dioptres less.

[0027] With these spectacles 10 according to the invention, different variations in corrections can be produced by the optician according to the requirements of the user, and thus a novel, very useful possibility for better vision in all distances can be created for a visually-impaired user.

[0028] The lens disks 12, 22 are expediently ground and the lens disks are thus designed as lenses. However, the lens disks could also be cast, and be made from different materials, optionally also as tinted disks or those which, if there is great light incidence, for example if it is sunny, evoke a tint in known manner.

[0029] With these spectacles 10 according to FIG. 1, when the additional frame 20 is placed on the spectacle frame 11, the lens disks 22 of the additional frame 20 overlap the lens disks 12 of the spectacle frame 11, i.e., they are dimensioned the same size, with the result that the user can utilize a full visual range. Moreover, the lens disks 12, 22 run approximately or precisely parallel to one another, and there is a small distance therebetween.

[0030] FIG. 2 shows the spectacle frame 11 and FIG. 3 the additional frame 20 separately. A user can wear just spectacle frame 11 with the varifocal lens disks if he has to change between far, medium and near vision.

[0031] The additional frame 20 according to FIG. 3 is advantageously made of a light, thin material, and consists of annular, or similarly shaped, mounting parts 23, the lens disks 22 held by same, a connecting member 24 as well as hook-shaped fixing elements 25, 26, as can also be seen in FIG. 1.

[0032] This additional frame 20 is characterized by the fact that this connecting member 24 designed as a small rod is developed slightly arcuate and spring-loaded on the top side. If it is intended to be placed on the spectacle frame 11, slight finger pressure from above on the connecting member 24 can cause same to stretch, and thus the mounting parts 23 with the lens disks are pushed slightly apart from one another. In so doing, these hook-shaped fixing elements 25, 26 to be placed in pairs on the outside of the mounting parts 23 can be pushed over the mounting 13 and, when the finger pressure on the small rod is released, causes same to spring back into arcuate state, as shown, and the mounting parts 23 move again towards one another, and thus these fixing elements 25, 26 clip around the mounting 13, with the result that a rigid connection is produced therebetween.

[0033] Alternatively, this can also be carried out with one hand by the additional frame 20 initially being hooked onto one side of the spectacle frame 11, then stretched by means of pushing and pulling, and likewise hooked onto the other side, and after subsequent releasing, hooked onto, and held on, both sides.

[0034] When removing the additional frame 20, the sequence can be reversed, and it is thus made possible that this additional frame 20 can also be removed very quickly.

[0035] The invention is displayed sufficiently using the above explained embodiment example. Self-evidently, other variants could also be provided. In theory a second additional frame can thus be placed onto this additional frame that can be placed on the front of said spectacle frame so as to be removable, which additional frame could be attached with corresponding fixing elements, similarly to the first one. It would also be conceivable that, instead of the one frame, another additional frame having different vision-correcting lens disks, for example such as those acting like sunglasses, could be used.

[0036] The lens disks of the spectacle frame or of the additional frame could also be designed with corrections on the left-hand side different from those on the right-hand side, in particular if the user has vision which differs between the left and right eye.

[0037] The type of fixing of the additional frame to the spectacle frame could also be designed differently, such as for example by at least one magnet as a fixing element instead of these hooks, or by plugs or clips. The lens disks could be in contact with one another when placed on the frame.

[0038] The lens disks of the additional frame could also cover only one part, for example the bottom part, of the lens disks of the spectacle frame. In so doing, they would be dimensioned to be smaller than the latter lens disks.