WO2012103956A1

WO2012103956A1 - Optical device for stereoscopy, stereoscopic spectacles and method for producing the optical device

Info

Publication number: WO2012103956A1
Application number: PCT/EP2011/051657
Authority: WO
Inventors: Denis-André ZAUGG; Igor Merhar; Taoufik Nouri
Original assignee: Optiswiss Ag
Priority date: 2011-02-04
Filing date: 2011-02-04
Publication date: 2012-08-09

Abstract

The invention relates to an optical device (1) for stereoscopy, comprising a corrective lens (2) for correcting a user-specific visual defect and a stereoscopic element (3) which is connected to the corrective lens (2) in order to form a stereoscopic unit.

Description

Optical device for stereoscopy, stereoscopic glasses and method of making the optical

contraption

The present invention relates to an optical

Apparatus for use in stereoscopy, stereoscopic glasses and a method of making this optical apparatus.

Glasses usually include two lenses, one left and one right lens, which are respectively associated with the eyes of the wearer, to provide him with individually tailored vision. As described below find such glasses

various uses.

Often, glasses are worn to correct a defective vision of the wearer. In the case of these so-called corrective glasses, the left and the right spectacle lenses are usually adapted to the specific ametropia of the respective associated eye.

Glasses are also used for stereoscopy. In this case, by means of a so-called stereoscopic glasses the left and the right eye of the spectacle wearer each presented a presentation with individually assigned spatial information, so that the wearer of the glasses when viewing the presentation the physiological phenomenon of a

perceives spatial perception.

If now the wearer of a correction goggle also wants to carry out a stereoscopic examination, he can set stereoscopic glasses in front of the existing correction goggles. For this purpose, these stereoscopic glasses must be dimensioned so that they can be slipped over the existing correction goggles and hooked to this.

The object of the present invention is to provide an improved optical apparatus for use in stereoscopy, stereoscopic glasses and a

Specify method for producing this optical device.

This object is achieved by an optical device with the features of claim 1 and with a stereoscopic spectacle and a method for producing the optical device according to the appended claims.

Further embodiments according to the invention are specified in the dependent claims.

In particular, the present invention relates to an optical device for stereoscopy with a

Correction lens for correcting a user-specific refractive error and with a stereoscopic element, which is connected to the correction glass to form a stereoscopic unit. Thanks to this unit, the result is a precise optical alignment and a compact design that is robust and stable against mechanical disturbances such as vibrations or

Movement changes is.

An advantage of this unit is that too

Head movements of the spectacle wearer, in particular during a head rotation and / or an inclination, the precise optical alignment of correction lens and stereoscopic element is maintained. One, possibly unnoticed,

Slipping or tilting, as can occur in a simple slipping over, is effectively avoided. Accordingly, even under difficult circumstances, the full visual performance is always maintained.

The connection of the stereoscopic element with the

Correction glass can be made in different ways, for example as a direct connection or a connection by means of an additional holding device. In this case, the holding device may also comprise a lens frame, a part of the spectacle frame, in particular a part of the frame of the spectacle lens, or a screw connection.

With the correction glass of the optical device according to the invention, basically all types of poor visual acuity or ametropia can be distinguished. Correct, for example myopia,

Farsightedness (hyperopia) or astigmatism

(Astigmatism). In this case, the term "glass", as used in the terms correction glass or spectacle lens, denotes a substantially transparent or light-transmitting element, for example an optical lens. This "glass" can be made of a variety of materials, such as mineral glass,

Plastic, crystal fabrics, in particular

Liquid crystals, or any combinations thereof.

For example, the correction glass to an electrically variable liquid crystal (liquid crystal), the optical refraction changeable, in particular

controllable and / or controllable, is. In this case, the change in the optical refraction by a change in voltage

and / or a current change. Due to the optically variable liquid crystal is then the total effective correction of the correction glass

changeable to a predetermined value, e.g. a value according to the prescription, can be set.

For example, the liquid crystal is disposed between two glass plates. Basically, the shape of the glass plates is arbitrary, in particular, they can also be flat. Such a correction glass is

inexpensive to produce and universally applicable. A correction glass with an electrically changeable

Liquid crystal is usually used in a so-called electric glasses. This allows a

simple adjustment of the optical corrections to the

respective needs of the user, for example, then by simply switching the electrical voltage, the glasses can be switched from distance to near vision.

In principle, the correction glass can be largely arbitrarily shaped, but as a rule the shape corresponds to that of a generally known spectacle lens or an optical lens, that is, the correction lens is substantially disc-shaped with a relatively thin edge which is arranged between two surfaces. The

Surfaces are opposite each other and can each be flat, convex or concave and allow the

Review of the spectacle wearer or one

Passage of light rays from an object to the eye wearer's eye. At least one of the surfaces serves to refract the light rays and thus to correct a defective vision.

The determination of the user-specific refractive error takes place individually for each eye of the spectacle wearer who may be future, so that a correction of the refractive error relates in each case to one eye. Most of these corrections are made manually by a specialist

taken, usually by an ophthalmologist or an optometrist, and as correction data in a prescription recorded. Based on the spectacle recipe then the appropriate correction lenses are made, typically by the manufacturer of the correction lenses.

The in the inventive optical device

used stereoscopic element is used for image separation in stereoscopy. In this image separation, a viewer has a single essentially planar object, for example a two-dimensional image or a two-dimensional image sequence on a screen. The planar object contains spatial information for both the right and left eyes of the observer. By means of two coordinated stereoscopic elements, this spatial information is separated and presented to the corresponding right or left eye. For stereoscopic image separation, numerous methods are known, e.g. Red-green separation (anaglyph method), polarization separation or shuttle separation.

For example, in the red-green separation the

stereoscopic elements are designed as specially selected red filter and green filter, so that green image parts are visible only through the red filter, but not through the green filter. The same applies to the red parts of the picture.

In another example, a stereoscopic

Image separation achieved by a temporal staggering. This is a sequence of separate, respectively the left or the right eye of the viewer associated images

represented, e.g. On a Screen of a Television By means of two matched stereoscopic elements it is achieved that during the presentation of an image associated with the left eye, it is displayed only to the left eye but not to the right eye. In a subsequent period of time then there is an inverse ratio, so that the right, but not the left eye, the image associated with the right eye is presented. Thus, each eye receives its individually associated images with the corresponding spatial information, so that the viewer feels a spatial perception according to the principle of stereoscopy.

According to the invention, it is proposed to connect the stereoscopic element to the correction lens to form a stereoscopic unit suitable for use in stereoscopy. This means that the stereoscopic unit allows a viewer a spatial perception when viewing a planar object simultaneously by the stereoscopic unit and another stereoscopic unit, these two stereoscopic units are coordinated. The above object is thus achieved according to the invention in that by means of the compound, the optical device, a compact, precise, stable and

reliable unit forms. For example, the stereoscopic element is in the

Correction glass integrated so that the stereoscopic

Element forms a functional unit of the correction glass. For example, in a correction glass, whose

Correction by a liquid crystal is changeable, the liquid crystal can also be used as

act stereoscopic element. The liquid crystal thus assumes a double function, on the one hand the correction of the user-specific refractive error and on the other hand the function as a stereoscopic element. This functional integration offers the advantage of a compact, versatile and cost-effective

Construction.

Furthermore, the integration or the connection achieves optimum matching of the correction glass and the stereoscopic element. That allows both a good one

stereoscopic image separation as well as precise

Correction of ametropia. This results in a high-quality and fatigue-free vision, especially in stereoscopic considerations.

In addition, the inventive solution proves to be surprisingly easy to use and very comfortable to wear for the user.

In a first embodiment of the present invention, the stereoscopic element is in the correction glass integrated or permanently connected to the correction glass to form a stereoscopic spectacle lens. As a result, a particularly high precision of the optical alignment as well as robustness and stability against mechanical disturbances can be achieved.

In a further embodiment of the present invention, the stereoscopic element is connected to the edge of the

Correction glass and / or with the surface of the

Correction glass, in particular part-surface in the

Edge area or full surface, connected.

In a further embodiment of the present invention, the stereoscopic element is connected to the correction glass by gluing and / or polymerization. These

Compound provides a particularly stable, especially insensitive to shocks, and

inexpensive to produce construction.

In a further embodiment of the present invention, the stereoscopic element by means of a

Holding device, in particular a carrier, a

Clamping device, a Velcro, one

Screw or a connector, with the

Correction glass connected. This allows the optical

Be easily adapted to changing conditions, for example, to a change in the

Visual acuity of the spectacle wearer, to new stereoscopic Technologies or to a person other than a wearer of glasses. This is advantageous for frequent changes, for example, in a movie showing loaned

stereoscopic glasses.

In a further embodiment of the present invention, the holding device is a lens frame, a part of a spectacle frame and / or a spectacle frame

mountable additional element.

In a further embodiment of the present invention, the optical characteristic, in particular the

Light patency, the stereoscopic element

controllable. Such stereoscopic elements are also referred to as active optical elements. The control allows the room information required for stereoscopy to be staggered over time and unambiguously separated and thus reliably presented to the relevant eye. In this case, controllable is also controllable or

controllable to understand.

In a further embodiment of the present invention, the stereoscopic element between a in

Substantially transparent and a substantially non-transparent state switchable. That's it

stereoscopic element in the transparent state largely translucent and in the nontransparent state

largely opaque or opaque. According to these switching properties, such stereoscopic elements are referred to as "shutter", shutter element or shutter element. Shutter are based mostly on the technique of liquid crystals (LCD), wherein the

Transparency or transparency through external

Signals, for example, an applied electrical voltage, can be switched.

The operation of the shutter is well suited for the stereoscopic image separation according to the above-mentioned principle of time staggering. For example, two shutter can each be in front of the viewer

be arranged, the shutter with respect to the

Synchronized image sequence and counteracted, so that during the representation of the right eye associated image of the shutter in front of the right eye is largely transparent, while the shutter in front of the left eye, the view of the left eye largely

blocked. In the representation of the left eye

Associated image, the conditions are reversed, so that the left eye has a clear view and the right eye

is blocked.

This technique offers the advantage that on the one hand the

Color characteristic of the object under consideration is not or only slightly affected, and that the image separation is largely independent of the spatial orientation of the stereoscopic element. Thus, a shutter offers an angle-independent image separation with high color fidelity and low brightness loss and consequently

high-quality, realistic looking at high

User comfort for the wearer of glasses. In addition, the left and right eye optical devices can be manufactured by a virtually identical process.

In a further embodiment of the present invention, the correction glass in addition to the requirements, in particular to the optical effects and / or to the

Geometry adapted to the stereoscopic element. Through this adjustment can be optical, through the integration or the combination of correction glass and stereoscopic

Element-related interference, in particular optical

Distortions and / or color shifts are minimized or eliminated.

In a further embodiment of the present invention, the stereoscopic element is or has a

Coating, in particular a thin-film coating, and / or a layer element on. This results in only a slight additional material application. Consequently, an influence on the beam path, i. the passage of the light rays through the stereoscopic element, and the additional weight and / or the

minimizes additional inertia. In addition, materials can be saved during production. Thus, an economical and cost-effective optical Realize device with a high wearing comfort. The layer element can also be formed as a film, which is optionally adapted to the shape of the correction glass. The adjustment can also during the

Manufacturing process, for example by thermal deformation.

In a further embodiment of the present invention, the correction glass is on one side or on both sides of

arranged stereoscopic element. As a result, a flexible design of the optical device is possible. So can even with high demands or narrowly limited

Specifications regarding the optical effects and / or the

Geometry of the stereoscopic element the optical

Device to the most different types of

Corrections of ametropia and / or can be adapted to a variety of individual eyeglass prescriptions.

In a further embodiment of the above

Embodiment, the optical device a

Directional dependence of the passage of the light rays and the stereoscopic element is arranged such that the light rays pass through the stereoscopic element to the correction glass in advance. This directionality is, for example, an asymmetric correction lens

given this, if used in one direction only, a largely distortion-free correction of the

Defective vision offers. By a directional

Correction glass is then usually the Directional dependence of the parent optical device. Now, if the stereoscopic element arranged such that the beam path passes through this in advance to the correction glass, the result is an optimal field of view for the wearer.

In a further embodiment of the present invention, the between the stereoscopic element and the

Correction glass formed gap or the contact surface formed therebetween, at least in a partial area substantially flat. In this case, under the concept of a substantially flat surface different surface shapes such as a flat surface, a slightly curved surface or curved towards the edges or rounded surface. A substantially planar intermediate space is to be understood as meaning a space that is essentially formed by two of the aforementioned flat surfaces. This shape allows optimal functioning of the stereoscopic element,

in particular a uniform and / or uniform and / or uniform function of the stereoscopic element. In addition, cost-effective and / or standardized

Components are used.

In addition, such a contact surface or such a gap has the advantage that it does not affect the beam path through the stereoscopic element or only to a small degree. This is particularly advantageous in the case of the optical device according to the invention, since this shape allows the correction glass to be primarily adapted to the requirements for the correction of a user-specific refractive error and only secondary to the requirements of the stereoscopic element. Thus, a simple and flexible division of manufacture, adjustment and assembly can be achieved.

Correction glass formed contact area a portion of the optically effective surface of the correction glass. Thus, the effect is taken into account that the spatial vision takes place mainly in a partial area of the visual field,

typically in the central area. By limiting to this relevant portion and the associated reduction in the size of the stereoscopic element, a particularly cost-effective design and / or a

Avoiding the problematic fringes of the

Correction glass and thus an efficient production can be realized.

In a further embodiment of the present invention, the stereoscopic element is electrically, in particular by current and / or voltage controllable. By means of this control, a precise switching, in particular a precise synchronization, and thus an efficient and reliable image separation can be achieved. Furthermore, a time control, in particular a largely

delay-free or delay-compensating control can be realized. In addition, the control can be direct and efficient with electrical signal processing

be coupled. In particular, an electrical

Receiver of a signal transmission, z. B. at a

Radio transmission or infrared transmission, are integrated directly.

The stereoscopic element may be electrically controlled by a current or a voltage or both. The power supply and / or power supply required for this purpose can be designed as an autonomous source of voltage or current, in particular as a battery or accumulator. In this case, the control by a control unit, for. Legs

electronic circuit or a digital processing unit, in particular a microprocessor can be realized.

Such a stereoscopic element is special

advantageous in combination with a correction glass in which the optical refraction of the corrective glass is electrically changeable, e.g. by means of an electric

changeable liquid crystal. This can

For example, the power or voltage supply and / or the control unit of the electric glasses are used together.

In a further embodiment of the present invention, the optical device is designed such that the control results in a sequence of 50 to 300, in particular 100 to 160, time intervals per second. This number of image changes enables flicker-free vision, since human image perception can not follow such a frequency of changes, and thus, as in a movie, the changing images are perceived as one continuous unit.

In a further embodiment of the present invention, the optical device has a predetermined electrical interface, via which the stereoscopic element is controllable. This will increase the mounting of the optical

Device in a stereoscopic glasses much easier.

Such an interface can also be used to manufacture

serve multiple connections and / or have multiple independent contacts. For example, in addition to the control of the stereoscopic element, a control and / or an electrical current / voltage supply for an electrically variable correction glass can be guided via this interface.

In a further embodiment of the present invention, the stereoscopic element is switched off

electric current and / or switched off electrical voltage substantially transparent. This allows the glasses to be used without power for non-stereoscopic vision, for example, a depleted battery. Further, by turning off the stereoscopic Image separation during non-stereoscopic vision, the power consumption of the optical device can be reduced.

The previously described optical device can also be worn regularly as in a normal prescription glasses. In this case, that would be turned off

stereoscopic element are perceived by the wearer in his daily non-stereoscopic vision as not disturbing. It is also conceivable that upon receipt of a suitable signal, for example a suitable synchronization signal, the optical device is automatically activated, so that the spectacle wearer perceives them directly as spatial when viewing a suitable image sequence.

In particular, the present invention relates to stereoscopic spectacles with at least one of the aforementioned optical devices according to the invention. If only one eye of the spectacle wearer is affected by a refractive error, could also only a single

Optical device according to the invention can be used. As a rule, that is, with bilateral ametropia, however, two of these devices are needed, namely one for the left and one for the right eye.

In a further embodiment of the present invention, the stereoscopic spectacles at least one version for releasably receiving the inventive optical Device on. As a result, the assembly, in particular installation or replacement, of the optical device is facilitated. This is advantageous since a correction glass is adapted at least once to the defective vision of the user and often also to their subsequent changes.

It is also conceivable that an order of

According to the invention, the optical device can be made by the user via the Internet. Thus, the user could enter his correction data according to his prescription and the data of the stereoscopic glasses concerned in the ordering system of the manufacturer of the optical device. The manufacturer can then do the individual

made optical devices to the user, so that this the existing lenses of his

stereoscopic glasses, d. H. the lenses without or with outdated correction, by the inventive optical devices with the current correction

can exchange. Of course, the complete stereoscopic glasses could be ordered over the Internet.

In another example of the above embodiment, the socket of the stereoscopic glasses has a predetermined electrical interface for controlling the

stereoscopic element. So can the

inventive optical device without

Expertise in a simple way in the stereoscopic Glasses are mounted. In addition, good compatibility between the optical devices and stereoscopic devices of various manufacturers can be achieved thereby.

In particular, the above-mentioned object is achieved by a method according to the invention for producing one of the aforementioned optical devices. The method is characterized by:

- Providing a corrective glass;

- Providing a stereoscopic element;

- Adapting the corrective glass to the requirements for the correction of a user-specific ametropia and to the requirements, in particular to the optical effects and / or to the geometry of the stereoscopic element;

- Connect, in particular by gluing and / or

Polymerization of the stereoscopic element with the correction glass.

The coordination of the correction lens and the stereoscopic element achieves both good stereoscopic image separation and precise correction of defective vision. This enables a high quality and

Fatigue-free vision, especially in stereoscopic views. The optical devices produced according to the above method can then be mounted in a pair of glasses, so that the spectacle wearer then has individually adapted stereoscopic spectacles.

The process for producing the optical device according to the invention can be done in a variety of ways

performed by, for example, an additional procedure with the manufacturer of the correction lenses or by a separate procedure with a specialized provider or optician. If necessary, the wearer himself could permanently connect the

stereoscopic element with the correction glass.

It is expressly stated that each

Combination of the aforementioned examples and

Embodiments or combinations of combinations may be the subject of a further combination. Only those combinations are excluded that would lead to a contradiction.

Embodiments of the present invention are explained below with reference to figures. Show it:

Fig. 1 is a schematic representation of

optical device according to the invention as a stereoscopic spectacle lens (1); Fig. 2 is a schematic representation of a

stereoscopic spectacles (10) with spectacle lens according to FIG. 1;

Fig. 3a shows a cross section of the spectacle lens (1) according to

Figure 1 with concave correction glass (2).

3b shows a first alternative to the embodiment according to FIG.

3a with convex correction glass (2);

3c shows a second alternative to the embodiment according to FIG.

3a with convex and concave correction glass;

4 shows a further example of the optical device according to FIG. 1, with a holding device (4) at the edge of the spectacle lens (1);

Fig. 5 shows another embodiment of the spectacle lens

(1) according to FIG 4, in which, however, the stereoscopic element (3) with the surface of the corrective glass (2) is partially connected;

Fig. 6 is a schematic representation of another

Embodiment of a pair of spectacles (10) with an inventive optical device (11) and a lock (64);

Fig. 7 shows a further embodiment of the glasses according to

Fig. 6 with a deformable socket (72) and a screw connection (74);

Fig. 8 shows a further embodiment of the glasses according to

Fig. 6, wherein the correction glasses (88) by a holder (84) are interconnected; 9 shows a further embodiment of the spectacles according to FIG. 6, with a metal surface (94) fastened on the spectacle frame;

Fig. 10 shows a further embodiment of the glasses according to

Figure 6 in which the correction glass (108) via a Velcro fastener (107) is connected to the frame of the glasses.

Fig. 11 shows a further embodiment of the glasses according to

FIG. 6 with a displaceable correcting lens (118); FIG.

Fig. 12a, a further embodiment of the glasses according to

FIG. 6 with a support (124) shaped to match a nose; FIG.

Fig. 12b is a detail view of the version of the glasses according to

FIG. 12a with fastening elements (125); FIG.

FIG. 12 c shows a detailed view of the carrier (124) according to FIG.

12a with opposite support arms (127).

The following statements are examples and are not intended to limit the invention in any way.

Fig. 1 shows a schematic representation of a

Optical device according to the invention as spectacle lens 1, which is associated with the right eye of a spectacle wearer. The shape of the spectacle lens 1 is substantially disc-shaped with a relatively thin edge formed between a first surface and a second surface is arranged, wherein the two surfaces face each other and allow a review of the wearer glasses through the lens 1 and a passage of light rays from an object to the eye of the wearer. The spectacle lens 1 comprises a substantially transparent correction glass 2 and a stereoscopic element in the form of a film-like layer element 3. The layer element 3 is permanently connected to the correction glass 2, in this example by gluing.

In the spectacle lens 1 is a direction for the

Given beam path (double arrow), so that the rays first enter through the front surface in the lens 1 and subsequently leave the lens 1 through the rear surface. In the perspective

Representation of Fig. 1, the front surface appears as the viewer of Fig. 1 facing surface. The layer element 3 is thus arranged on one side of the correction glass 2 and forms the front surface of the

Spectacle lens 1. Thus, the layer element 3 in

Essentially the same size as the correction glass 2 and covers its front surface.

In addition, the spectacle lens 1 has two electrical contacts 5, which form a predetermined electrical interface, so that the layer element 3 via the electrical contacts 5, an electrical voltage can be supplied. For example, the layer member 3 may be sandwiched as a three-layered layer (not shown). The first and third layers then act as electrically conductive layers, each with the electrical

Contacts 5 are connected. The second layer is a controllable intermediate layer, to which a voltage can be applied via the adjacent first and second layer. Other implementations of the layer element 3 are also possible, e.g. two-ply layer elements.

With the correction glass 2, a defective vision of an eye of the wearer of the glasses is corrected, for example, his short-sightedness. In this exemplary embodiment, the layer element 3 is an electrically controllable shutter

formed whose light transmission through the

electrical contacts 5 is controllable. This can be the

Shutters are switched between two states, an open state in which the shutter is substantially transparent and a closed state in which this is essentially non-transparent.

When the electrical voltage is switched off, the layer element 3 is in the open state, so that light passes through the correcting glass 2 and the light almost unhindered

Layer element 3 can occur, so that the spectacle lens 1 is largely translucent. If the layer element 3 is supplied with a voltage via the electrical contacts 5, then the layer element 3 changes into the closed state

State in which the layer element 3 and thus also the spectacle lens 1 is substantially opaque to light or opaque. The optical behavior can also be reversed by the spectacle lens 1 is transparent but otherwise opaque when the voltage supplied is applied.

The layer element 3 is suitable for use in stereoscopic image separation, since, as in FIG. 2

described, the control of the Lichtdurchgängigkeit can be used to offer the eye of the wearer a correspondingly associated image of a flat object. The layer element 3 is thus a

stereoscopic element, and since the spectacle lens 1 can be used in a stereoscopic spectacle, it forms a stereoscopic spectacle lens.

In a manner analogous to the spectacle lens 1 for the right eye, a spectacle lens for the left eye of the

Eyeglass wearer to be set up and used.

Fig. 2 shows a schematic representation of a

stereoscopic glasses 10 with a spectacle frame 12 and with two spectacle lenses 1 and 11. The stereoscopic

Glasses 10 also includes a battery 16 as a power / voltage supply, a control unit 17, a socket 14 and electrical contacts 15 as a predetermined electrical interface.

In this embodiment, the spectacle lenses 1 and 11 are stereoscopic spectacle lenses according to FIG. 1, which act together for the purpose of stereoscopy. The left or the But right lens could also be a stereoscopic lens without correction of ametropia.

The socket 14 is dimensioned such that it can detachably receive the spectacle lens 1 and the electrical contacts 15 are arranged such that they are in communication with the electrical contacts of the spectacle lens 1 in order to establish an electrical connection between the spectacles 10 and the spectacle lens 1 so that

Spectacle lens 1 via the control unit 17 and via the

Contacts 15 is controllable.

The electrical contacts 15 are over the of

Control unit 17 and the battery 16 operatively connected (not shown). This allows the electrical

Contacts 15 are supplied with a timed electrical voltage. In the same way as the right one

Eyeglass lens 1 is also the left lens 11 connected to the battery 16 operations.

In a stereoscopic view, a substantially planar screen (not shown), for example the flat screen of a television monitor, presents a planar object in the form of a periodically alternating image sequence. In this case, an image for the left eye and an image for the right eye of a

Viewers shown. In addition, a signal for synchronization 18 from the screen to the control unit 17th transmitted, for example via a radio link. In accordance with the periodically alternating image sequence, the control unit 17 controls the translucence or transparency of the two lenses 1 and 11 by supplying them in opposite and periodically alternating voltage, for example in the form of periodic rectangular pulses. During a period of time in which the

Screen the image assigned to the right eye

presents, the right lens 1 is largely transparent and the left lens 11 largely

switched non-transparent. Thus, the right lens 1 substantially gives one during this period of time

unobstructed view of the screen free, while the view of the left eye is blocked by the largely non-transparent left lens 11. In the subsequent time period are then reversed accordingly

Conditions before. The respectively associated image is thus presented to the right and left eyes, so that according to the principle of stereoscopy the user has a spatial image

Perception in viewing the two-dimensional

Image sequence feels. Good results were achieved with a periodic image sequence of 120 Hz.

3a shows a cross section of the spectacle lens 1 according to a plan view of the sectional plane AA in FIG. 1. The layer element 3 is essentially planar and thus offers a largely distortion-free and reliable function as a shutter. The spectacle lens 1 or the correction lens 2 is curved concavely on the rear surface. The shape of the Front surface of the correction glass 2 is adapted to the shape of the layer member 3.

3b shows a first alternative to the arrangement according to FIG. 3a in which the spectacle lens 1 or the

Correction glass 2 convexly curved on the front surface. The shape of the rear surface of the correction glass 2 is adapted to the shape of the layer member 3.

FIG. 3 c shows a second alternative to the arrangement according to FIG. 3 a in which the correction glass 2 is designed in two parts and is arranged on both sides of the layer element 3. The spectacle lens 1 or the correction lens 2 is concave on the rear surface and convex on the front surface. The layer element 3 forms a

Interlayer, in whose form the two parts of the

Correction glass 2 are adjusted.

Thanks to the flexibility of the arrangement shown in the exemplary embodiments according to FIGS. 3 a to 3 c, virtually any arbitrary correction of defective vision can be realized by a substantially planar layer element 3 and a suitably adapted correction lens 2.

Fig. 4 shows a cross section of another

Embodiment of the spectacle lens 1 according to a

Top view of the section plane A-A in Fig. 1. The

Correction glass 2 is by means of a holding device 4th connected to the layer element 3. The holding device 4 connects the layer element 3 with the edge of the

Correction glass 2. The holding device 4 is formed in this example as a lens frame, which

at the same time forms the edge of the spectacle lens 1.

Fig. 5 shows another embodiment of the

Spectacle lens 1 according to FIG. 4. The stereoscopic element 3 is connected to the surface of the correction lens 2 part-surface by the concave surface of the

Correction glass 2 in the edge region on the plane

Layer element 3 is applied, so that there is a gap in the central region. This connection in the edge region, for example, by gluing or a

Bolting can be achieved. As a result, this connection can be made in a simple and cost-effective manner.

Fig. 6 shows a schematic representation of a

Embodiment of the glasses according to FIG. 2 with the

Spectacle frame 12 and the stereoscopic spectacle lens 11. The right spectacle lens of the spectacles is shown as a shutter 3 (see FIG. 1). The spectacle frame 12 comprises a socket 62, in which the spectacle lens 11 can be inserted and removed again (represented by a

Arrow). Furthermore, the socket 62 has a lock 64, with which the stereoscopic spectacle lens 11 can be locked in the inserted state (shown in the locked state in the right spectacle lens). The stereoscopic spectacle lens 11 has a correction lens 68 and a trapezoidal support 66, which forms part of a holding device. By the carrier 66, the correction glass 68 is held in the socket 62. The carrier 66 consists of two parts, which enclose the correction glass 68 and which may be made of Plexiglas, for example. The carrier 66 can also consist of a, in particular trapezoidal, metal frame in which the correction glass 68 is held, for example by means of a clamping connection.

Fig. 7 shows a further embodiment of the spectacles according to Fig. 6, but the stereoscopic spectacle lens 1 is held by the locking by a deformable socket 72 and a screw 74 which can be closed by screwing after insertion of the spectacle lens 1 (shown as right

Spectacle lens in the opened state). The holding device may be formed as a clamping device, so that the spectacle lens 1 is clamped by screwing in the socket.

FIG. 8 shows a further exemplary embodiment of the spectacles according to FIG. 6, in which the spectacle frame has a holder 82 and a correction lens 88 whose shape is adapted to the shape of the holder 82. Here is the left

Correcting glass 88 connected to the right-hand correction glass by a support 84 in the lower region of the correction glass 88. FIG. 9 shows a further exemplary embodiment of the spectacles according to FIG. 6, with a correction lens 98 which is connected to the right-hand correction lens via a metal surface 94 fixed on the spectacle frame. In addition, a shutter 93 is shown.

FIG. 10 shows a further exemplary embodiment of the spectacles according to FIG. 6 with a left-hand correction lens 108 which is fastened to a carrier 106. In the upper part of the two versions each a Velcro 107, in particular of the type VELCRO, arranged (the right

Velcro is not shown, but this is arranged analogous to the left). About the carrier 106 and the Velcro 107 is the correction glass 108 with the

Connected version. In addition, a shutter is 103

shown.

FIG. 11 shows a further exemplary embodiment of the spectacles according to FIG. 6 with a trapezoidal correction lens 118, which is displaceably connected to the socket. To move a guide rail 117 and a

lockable carrier 114. By moving the correction lens to the eye relief of the wearer, respectively the respective propriety of the eye of

Nose bridge, adjusted. For example, the parallel edge lengths of the trapezoidal correction lens are 35 mm and 40 mm and the height is 32 mm. The shape of the

Correction glass can also be round, for example with a diameter of 25 mm. The left side of the glasses shows a shutter 113 with the correction glass removed.

FIG. 12 a shows a further exemplary embodiment of the spectacles according to FIG. 6 with two corrective lenses 128 which

are each mounted opposite each other on a support 124. The carrier 124 is an arcuate, to a nose fitting shaped component, which

for example, can be made from acetate.

In addition, a shutter 123 is shown, which is almost completely covered by the correction glass 128.

FIG. 12b shows a detailed view of the embodiment according to FIG. 12a with the correction glass removed, so that the shutter 123 is shown uncovered. Further, a portion 222 of a socket 62 (according to FIG. 6) of

Spectacle frame shown. On this section are fasteners 125, which are used to attach the

Support 124 (as shown in FIG. 12a) on the section 222 serve.

FIG. 12 c shows a detailed view of the carrier 124 according to FIG. 12 a with a correction glass 128 which has been mounted in a manner of projection and has already been mounted. The carrier 124 has holes

126 for receiving the fastening elements 125 (according to FIG. 12b). Furthermore, the arcuate carrier 124 has on its opposite flanks in each case a support arm

127 on. In this case, 127 holes for fixing the correction glasses 128 are present in the support arms. The Support arms 127 may be made of plastic, for example.

Claims

claims

1. Optical device (1) for stereoscopy with a correction glass (2) for correcting a

user - specific refractive error and with a stereoscopic element (3), which with the

Correction glass (2) is connected to a

to form stereoscopic unit.

The optical device (1) according to claim 1, wherein the stereoscopic element (3) is integrated in the correction glass (2) or permanently connected to the correction glass (2) to form a stereoscopic spectacle lens.

3. Optical device (1) according to claim 1 or 2, wherein the stereoscopic element (3) with the edge of the

Correction glass (2) and / or with the surface of the correction glass (2), in particular part of the area in the edge region or the entire surface, is connected.

4. Optical device (1) according to one of claims 1 to 3, wherein the stereoscopic element (3) by means of a holding device (4), in particular a

Carrier, a clamp, one

Velcro fastener, a screw connection or a plug connection, with the correction glass (2) is connected. Optical device (1) according to claim 4, wherein the holding device is a lens frame, a part of a spectacle frame and / or an attachable to the spectacle frame additional element.

Optical device (1) according to one of claims 1 to 5, wherein the optical characteristic, in particular the light transmission, of the stereoscopic

Elements (3) is controllable.

Optical device (1) according to one of claims 1 to 6, wherein the stereoscopic element (3) between a substantially transparent and a in the

Essentially opaque state is switchable.

Optical device (1) according to one of claims 1 to 7, wherein the correction glass (2) in addition to the requirements, in particular to the optical effects and / or the geometry of the stereoscopic

Elements (3) is adjusted.

Optical device (1) according to one of claims 1 to 8, wherein the correction glass (2) is provided on one or both sides of the stereoscopic element (3).

is arranged.

10. An optical device (1) according to any one of claims 1 to 9, wherein between the stereoscopic element (3) and the correction glass (2) formed gap or the contact surface formed therebetween is substantially planar at least in a partial area.

11. An optical device (1) according to claim 10, wherein the stereoscopic element (3), in particular via a predetermined electrical interface (5), is controllable.

12. An optical device (1) according to claim 10 or 11,

wherein the stereoscopic element (3) at

switched off electrical power and / or

switched off electrical voltage is substantially transparent.

13. Stereoscopic glasses (10) with at least one

Optical device (1) according to one of claims 1 to 12.

14. Stereoscopic glasses (10) according to claim 13, wherein said at least one socket (14) for releasable

Recording the optical device (1) and a predetermined electrical interface (15) for

Control of the stereoscopic element (3). Process for producing an optical device (1) according to one of Claims 1 to 12, characterized by:

- Providing a corrective glass (2);

- Providing a stereoscopic element (3);

- Adjusting the correction glass (2) to the

Requirements to correct a

user-specific ametropia and to the requirements, in particular to the optical effects and / or to the geometry, of the stereoscopic element (3);

- Connect, in particular by gluing and / or

Polymerization of the stereoscopic element (3) with the correction glass (2).