WO2017137029A1

WO2017137029A1 - Bridge-less eyeglasses

Info

Publication number: WO2017137029A1
Application number: PCT/DE2017/100017
Authority: WO
Inventors: Karl Engelhardt
Original assignee: Karl Engelhardt
Priority date: 2016-02-12
Filing date: 2017-01-12
Publication date: 2017-08-17
Also published as: DE102016102515A1; DE112017000801A5

Abstract

Disclosed are optimally streamlined eyeglasses that elastically embrace the head and tightly retain the lenses on the head and in the eye sockets above the nose without a bridge connection by means of a spring lock-type bracket around the back of the head.

Description

DESCRIPTION

Seamless glasses

The invention relates to a pair of spectacles according to the preamble of claim 1.

The previously known glasses, sunglasses and goggles are usually placed from the front. The spectacle lenses hold on the head by a stiff nose bridge, which can be separated and reassembled if necessary and both sides, hinged, fixed or flexible earpieces. Variants are also available with textile, strained around the ears

Straps or elastic strap around the head.

The conventional vision aids and standard goggles have the disadvantage that they are used in rapid head movements, e.g. while exercising or dancing, working in exposed positions or upside-down postures, slipping, falling or being thrown off.

Previously available sunglasses have the disadvantage that, due to the lateral distances of the dark light filter glasses from the face, even with the narrowed-up shapes, an at least small gap remains, incident through the light, which can cause disturbing reflections on the inner surfaces of the glasses. In unfavorable cases, laterally incident, unfiltered UV light can penetrate through the dilated pupils and unnoticed damage the retina of the eye. Often even more than without sunglasses with narrowed pupils and narrowed eyes.

More comfortable, open goggles always carry a certain risk that splinters or centrifugal chips bounce off and fall from the side behind the glasses in the eye. The goggles with side panels provided against it are either provided with ventilation openings and / or have a larger volume with a shape that often interferes with a protective helmet and is a hindrance. The misting of the visible surfaces by condensate of sweat, which is released especially from the facial skin of the forehead and cheeks, can not be prevented by the small vents long. During strenuous work or in the cold, this often only works for a few seconds before the view through the viewing windows is severely impaired, forcing a brief removal of the glasses each time. Which does not last work time.

Sports glasses, especially winter sports glasses are made for internal condensate reduction with double-walled, cold-insulating lenses. But even this works in many cases, despite special coating in the cold or humid air not really good. In addition, occurs in winter sports glasses nor the additional disadvantage that the large-scale lenses by thawing snow and again freezing water condensation or by freezing breath condensate, quickly blend fields by hoarfrost, water drops or ice,

Get lubricating surfaces and optically refractive, distorting streaks. At full speed, without the possibility of cleaning, this can lead to an increased safety risk up to the risk of accidents. The eyewear invented here pursues another overall concept in the functional form that combines several features that are of great advantage in certain situations. The glasses are despite their nature suitable for everyday use and also achieves a fundamentally different overall effect in their wearing properties. In addition to the ergonomically functional purpose optimization, a unique selling point for aesthetic and fashionable variants and lower forms is also opened up.

This invention is based on the object to define a pair of glasses, which has better aerodynamic properties, sitting safely on the head, which better envelops the eyes protective, which is less prone to contamination, splashing water and condensate in the In most cases, it is more comfortable to wear and, in addition, results in a novel, organically merging look and overall appearance of glasses and head or spectacle wearer.

The invention task is solved in terms of aerodynamics, in which the lenses are curved in radial centering stronger around the eyeball and drop-shaped circumferential edges lying in the eye sockets, closely matched to the face shape and to the skin around the edges of the eyes. The spectacle edges taper towards the corners of the eyes below the outer eyebrow ends, towards the cross-section of a circumferential retaining ring. The outer spectacle lens tip is also at the level of the upper ear attachment. Due to the noiseless surface with flowing envelope, wind currents can slide uninterrupted, without tugging on the glasses, without turbulence behind the glasses and without tearing in the eyes, ensure a secure grip and better visibility even in windstorm or strong wind. The better grip of the glasses on the head, is achieved in that at the pointedly tapered end of the teardrop shape of a spectacle lens a resilient retaining half-ring is attached, which in the horizontal plane, above the ear to the entire back of the head, to the pointed approach of Glasses on the other side goes through. The retaining ring exerts a slight spring force, which pushes the lenses towards the root of the nose with slight tension in the eye sockets. In general, the retaining ring disappears under the head hair, which simultaneously presses the retaining ring on the ear and the neck approach. Down the half-ring can not slip, as it, like conventional eyeglass temple, rests on the ear, but without pressing from behind against the auricle. In the face, the two lenses sit deepened in the eye sockets, whereby they can escape either down over the cheeks, still above the eyelids still to the side, from where they are held by spring force. To settle the eyeglasses are gripped at the base of the hoop ring, spread outwards, against the spring action and taken away or upwards away from the head. Placing is done in reverse order, with the glasses is either inserted under the hairline running horizontally over the ear or the covered covering hair is pulled out after covering the glasses.

[001 1] The more comfortable fit of the spectacles is achieved by distributing the weight of the spectacle lenses over the entire edge of the glass, which does not cause any pressure concentrations, as with normal spectacles on the nose saddle and in that no ear hooks are present behind the ears. which uncomfortably press the lateral concerns of the head, eg while sleeping while traveling, bending or after slipping the glasses can . The spring pressure of the retaining ring is designed so that on the one hand, a secure fit and on the other hand a lighter, evenly distributed and pleasant perceived holding pressure gives a comfortable ride.

The better protective effect, both in terms of splinter protection, as well as in terms of UV and light protection results from the all around the eye completely enclosing drop shape with all around tight-fitting eyeglass rim, without a wide gap to the facial skin.

The susceptibility to damage is reduced by the reduced spectacle lens surface. In addition, snow drops and raindrops from the excessive center of vision are more likely to rain faster on the stronger curvature when there is a headwind or wind. Also, water droplets can not be swirled by wind suction on the back of the lens and stay there looking wabernd.

The propensity for fogging is already reduced due to size and shape, since only the not so strong sweating eyelids and minimal cheek skin surfaces are covered with the glasses. In addition, the lens rim is adapted to the respective use. Thus, depending on the application partial edge broadening, small edge recesses, small air or drainage holes, fine or coarse-pored, skin-friendly leather, textile or foam strips or fine mesh-shaped spacer strips along the overlying edge attached.

The low-cost production as protective or sunglasses is made in one piece in prefabricated clothing sizes with general fit, without visual correction by optical lens action (Fig.2). The high-quality versions (Figure 1) are either made of plastic with surface coatings, removal and / or Verspiegelungen from the field of ophthalmic optics, in one piece and / or as composite material solutions spring steel strap (3) and glass or plastic lenses (1 ). With or without plug connection and with or without hinge for space-saving folding. The material transition (2) from lens to ring hoop is visibly or invisibly adjusted in different production techniques.

Protective, sports and sunglasses can be made with optically neutral eyecups, which can also meet Sehhilfeeanforderungen, in which the field of view and Blickzentrum in the eyeglass with the required refraction is concave or convex in the production or in the behind an optical neutral eyepiece in the field of view, a correction lens made of optically tempered plastic or glass is used. The total curvature depends on the required, free air space for the blink of an eye. Even better hold is caused by bending the ring hoop under the back of the head (Fig.3).

Applications are possible in all eyeglasses with 2 eyeglasses, such as vision glasses with optical vision correction, sunglasses, goggles, sports glasses, fashion eyewear, etc ..

In the 3 figure drawings of the appendix designates in each case:

1> the lens / eyeglass

2> the transition point / junction / connector / hinge

3> the retaining ring / hoop ring

4> the edge cushion and ventilation strips

Claims

Glasses, as refractive visual aid, sunglasses, goggles or sports glasses, characterized in that between the two eyeglasses (1), over the nose, there is no load-bearing connection with the eyeglasses directly or framed in a frame or incorporated in a spectacle frame held together and instead the two eyeglasses each from the side edge (2) away, are connected by a retaining ring (3) with spring tension, which leads in the mounted state of the right and left lens edge (2) of the outer corner of the eye over the ears around the back of the head and whose inwardly directed spring tension presses the eyeglasses (1) into the eye sockets of the spectacle wearer and stabilizes them there (FIG. 1).

Glasses in which the eyeglasses in a surround the eyes on all sides border framing, which rests all around with the entire edge directly or on a flexible and / or soft edge cushion on the forehead and cheek skin, characterized in that the two eyeglasses (1) not are framed in a head-adapted bezel, but each eyeglass in a teardrop-shaped curvature, with no edges and caesura, surrounds the respective eye within the eye sockets, and the eyeglass edge is fitted directly to the shape of the eye socket, towards the outer corner of the eye tapers and there flows formfliesend in a horizontally around the head current spring ring (3), which leads over the ear lug around the back of the head, the lenses (1) stiff-elastic connects and with pleasant to be worn spring ring tension to the nasal approach, presses into the eye sockets. (Fig.2) Spectacles according to claim 1,

characterized in that it leaves the entire bridge of the nose of the spectacle wearer in the fitted state, while the support on the head by a spring clip (3) is effected, depending on the eyeglass edges (2) of the outer corner of the eye over the ears and from the top Ear lug with a slight bend down, leads tightly around the back of the head and presses the eyeglasses (1) with slight spring tension in the direction of the nasal approach in the eye sockets (Figure 3).

Spectacles according to claim 1,

characterized in that the two eyeglasses (1) are not connected to a web over the nose and instead by an annular spring clip (3), which leads back around the head, are held together resiliently, wherein the edges of the eyeglasses within the eye sockets with a small distance to the skin are adapted to the head shape and along the overlying edge of a pressure and moisture balancing cushion strips (4) made of soft-elastic, porous, vapor-permeable and skin-friendly material is attached, which closes the eyeglasses (1) pressure-compensating and windproof around the eyes ,

Method for producing a pair of spectacles according to claim 1,

characterized in that the head of the wearer is scanned by a laser scanner in a horizontally encircling ring from the height of the eyebrows down to the level of the nose end, three-dimensional and is stored in a digitized vector file, which of the adjustment of the spectacle edges and the Adaptation of the holding head (3) running around the head, which is based on mechanical production and manual reworking, wherein known forming CNC or 3D tools are controlled multiaxially via stepper motors on the basis of the digital file and / or an automated and / or Manual reworking by means of thermo-plastic, mechanical, cutting, cutting or grinding processing, with the help of a decisive light and / or laser projection of a 1: 1 auxiliary model as a form, facilitated and specified. A method for producing a pair of spectacles according to claim 1, comprising two prefabricated in their optical, refractive properties of plastic raw lenses, which are cut and ground in their edge shape according to an individually adapted form of theory,

characterized in that the lenses (1) each at the edge of the outer

Corner angle, heated at the interface to the stirrup lug, thermally to the melting limit of the plastic, where then a formfliesende, tapering tapering and close to the head shape bowed bracket approach (2), is drawn from the lens edge material not required for the visual aid thermoplastic then each a plastic strip (3) with other, elastic-resilient material properties in previously calculated and suitably tailored length and cross-sectional shape, is thermally welded. After solidification, the approach and joining seams are ground and polished, and the entire spectacle shape is thermally bent into the appropriate final shape and, if necessary, permanently fixed in the resilient final shape by means of known methods of chemical or physical material hardening processes. A method for producing a pair of spectacles according to claim 1, comprising two prefabricated in their optical, refractive properties of raw lens made of glass, in your

Edge shape tailored and sanded according to an individually adapted form of teaching,

characterized in that the lenses (1) each at the edge of the outer

Corner angle, heated at the interface to the bracket approach, thermally to the melting limit of the glass, where then a form-flowing, tapering tapering and close to the head shape bowed bracket attachment (2) is drawn from the lens support material not required for the visual aid thermoplastic. The Formzugprozess is chosen so that in each case at the pointed end of the Auszugsform a flat, elliptical to kidney-shaped cross-section is formed on which an end surface is ground as a Einsteckfläche in which the mating joint drilled a formfliesend end portion (2) at both ends of the spring steel half-ring and is pegged. Both end parts (2) of the spring clip (3) are made with or without hinged hinge and with or without a guide groove for a length adjustment of the Federhalbringes (3).

The summary on page 1 1 follows

and

the drawings: Fig.1, Fig.2 and Fig.3 on page 12.