DE102015209020B4 - Screen reader - Google Patents

Abstract

Screen reading device (1), comprising a support table (2) for supporting a reading product, an image recording device (3) for detecting text and / or images of at least part of the reading product and a display device (4) for displaying texts recorded with the image recording device (3) and / or images, the support table (2) being displaceable in the plane of its support along at least one axis (100, 101), characterized in that a damper device for the support table (2) is arranged, the damper device being designed such that it a displacement of the support table (2) along the at least one axis dampens in one direction (100, 101), and that when the support table (2) is locked along a axis a pressure and / or tension sensor is switched in such a way that by means of triggering the pressure - And / or tension sensor by a user, the image recording device (3) can be moved in such a way that it moves the support table ches (2) along the other axis (101, 100) is compensated.

Description

The invention relates to a screen reader, comprising a support table for supporting a reading product, an image recording device for recording text and / or images of at least part of the reading product and a display device for displaying texts and / or images recorded with the image recording device, the support table in the Plane of its support is displaceable along at least one axis.

Although applicable to any screen reader or device for reading and outputting text and / or images, the present invention is explained on the basis of screen readers for people with visual impairments.

Already known screen readers have a support table for supporting a reading product, i.e. for example, a book, a magazine or the like can be placed on it. Furthermore, a camera is arranged which takes an optical image of the book or the magazine and displays it on a display device, for example in the form of a screen. The camera is usually attached to a holder together with the screen. Controls for operating the screen reader are located on the front of the screen. For example, in order to be able to read texts in a book or in a magazine across the entire width of the book, the support table is movably arranged below the camera in the plane of the book or the magazine or a table. A user of the screen reader can then use the support table, which can be moved along two axes, to have all areas of the book recorded or recorded by the camera and to have them displayed enlarged on the screen.

Due to the increasing aging, especially in the industrialized nations, motor functions and eyesight are increasingly impaired by larger and larger parts of the population, so that more and more motorized users also need screen readers. In the case of already known display devices, however, it is disadvantageous that such a user, when he moves the reading product to be enlarged below the camera, cannot place it precisely, for example due to shaky hands, which, depending on the magnification or resolution set, can easily result in slipping by several words or lines caused. The reading comfort for the user on the screen is thus severely restricted.

The WO 2005/101349 A1 , the DE 10 2006 006 028 A1 and the DE 199 52 393 A1 already show screen readers with all the features of the preamble of claim 1.

The GB 2 449 764 A and the JP 2007-180713 A show damper devices on screen readers in connection with rotary and vertical movements.

The DE 18 51 327 U shows a horizontal damper device for tables in general.

The DE 601 20 132 T2 shows universally usable dampers for braking linear or rotational movements, especially for office and computer equipment.

From the DE 10 2006 053 652 A1 a reading device for visually impaired people is known, a frame connected to a reading table being pivotable relative to the reading table via a hinge connection.

It is an object of the present invention to provide a screen reader which has increased user-friendliness and in particular enables reliable and accurate positioning of a reading product to be detected.

The above object is achieved by a screen reader according to claim 1.

The above object is also achieved by a method according to claim 12.

When the support table is locked along an axis, a pressure and / or tension sensor can be switched in such a way that by triggering the pressure and / or tension sensor by a user, the image recording device can be moved in such a way that it moves the support table along the respective other axis is compensated. A considerable space saving can thus be achieved in front of the support table for a user of the screen reader and the reading product can still be completely captured.

One of the advantages thus achieved is that the damping device enables a more uniform, continuous and soft movement of the support table against resistance and thus provides a considerable improvement in the operation of the reading device for a user of the screen reading device. When reading a book or magazine, a more even “flow” of the reading product is achieved, especially when the magnification is large and the hands are restless. Another advantage is that small vibrations or shaky hands, etc. no longer cause the reading product to shift and so that a more reliable reading or viewing of the reading product is made possible by means of the screen reader.

The term “reading product” generally means any product, device, product or the like which can be viewed by a user using the screen reader. In particular, this includes books, magazines, labeled paper, etc. that a visually impaired person, for example, would like to view, in particular enlarged.

The term “level” is to be understood in particular in the claims, preferably in the description, that level which is formed by the support table.

Further features, advantages and preferred embodiments of the invention are described in the following subclaims or are evident from them.

The damper device is expediently switchable. This increases the flexibility for a user of the screen reader even further, since the user can switch the damper device on or off as required.

The support table is advantageously designed to be displaceable along several axes and the damper device is designed to be switchable for each direction in which the support table is designed to be displaceable. This simplifies the operation of the screen reader even more and at the same time increases the flexibility for a user, since it can switch the damping on or off depending on the direction: For example, if a user only wants to switch on the damping when reading from left to right, he can only do so switch on for the reading direction, while jumps from line to line in a book remain switched off. The damping is preferably carried out only in the reading direction, and therefore not contrary to the reading direction. The reading direction can depend on the respective country or language and can for example be preconfigured or selected or changed during the operation of the screen reader.

At least one, in particular electrical, switch is advantageously arranged which interacts with the support table for switching the damper device. By means of the switch, the user can selectively switch on and / or off damping for the support table in a simple and inexpensive manner. In addition to an electrical design of the switch, this can in particular also be designed as a mechanical switch.

A switch is advantageously arranged for each direction of displacement of the support table. A switch for damping the movement along an axis (two displacement directions) can also be arranged. This makes it easier for a user to distinguish which direction the damper device for the support table is to be switched on or off. In addition, the user can be shown the correspondingly switched state, that is to say damping switched on or off, by optical display elements and / or by tactile feedback when actuated.

The damping that can be provided by the damper device is expediently adjustable, in particular for each direction, separately. This increases the ergonomics for a user of the screen reader, since the user can individually adjust the best possible or most pleasant damping effect. The setting can be made continuously or several fixed levels in the damping effect can be provided. The setting of the same can be easily adjusted by a user using a rotary wheel or the like.

The support table can advantageously be locked in at least one direction, preferably perpendicular to a reading direction of a user of the screen reader. In this way, a coordinated movement along the reading direction, for example a book, can be made available without an offset for reading.

The screen reader is expediently designed to be foldable. This avoids a complex individual composition of the components of the screen reader. The screen reader can thus be made ready for operation in a short time. In addition, a small pack size can be provided, which, for example, reduces shipping costs when the screen reader is shipped.

The screen reader is expediently designed to be foldable, in such a way that the image recording device can be placed on the support table and the display device can be arranged parallel to the support table and above the image recording device, at least some of the elements of the devices being held and / or locked in a fixed position by means of the gas pressure springs are. The screen reader can thus be folded up in a simple manner and an extremely small pack size can be achieved.

The damper device can advantageously be switched on and / or off mechanically. This enables simple and reliable switching of the damper device. The damper device can be switched on and / or off, for example, using suitable operating elements on the screen reader, in particular on the display device

The damper device is expediently designed to be passive. A damper device can thus be provided in a simple and inexpensive manner. If the damper device is designed to be active, inaccuracies in the movement of the support table can be counteracted particularly quickly and in a defined manner.

A mirror function and / or a lap viewing function can expediently be provided for a user by means of the display device together with the image recording device. This also increases the flexibility when using the screen reader, since the user can view himself or additionally view documents that are on his lap by means of the lap viewing function. Likewise, if the user carries out activities with his hands, it is also possible to have them enlarged on the screen reader. This is necessary, for example, if a user knits with both hands. In this "rope" position, the hands are usually above the lap. A visually impaired person can then use the knitting needles to display the corresponding enlargement of the knitted fabric on the screen reader. Likewise, a so-called blackboard viewing function is also possible, which essentially corresponds to the mirror function, the camera pointing away from the user instead of the user, that is to say in its direction of view.

Further important features and advantages of the invention emerge from the subclaims, from the drawings and from the associated description of the figures on the basis of the drawings.

It goes without saying that the features mentioned above and those yet to be explained below can be used not only in the combination specified in each case, but also in other combinations or on their own without departing from the scope of the present invention.

Preferred embodiments and embodiments of the invention are shown in the drawings and are explained in more detail in the following description, the same reference numerals referring to the same or similar or functionally identical components or elements.

• 1 eine perspektivische Ansicht eines Bildschirmlesegeräts gemäß einer ersten Ausführungsform der vorliegenden Erfindung;
• 2 in perspektivischer Ansicht ein Bildschirmlesegerät gemäß einer zweiten Ausführungsform der vorliegenden Erfindung;
• 3 eine perspektivische Ansicht eines Bildschirmlesegeräts gemäß einer dritten Ausführungsform der vorliegenden Erfindung;
• 4 eine schematische Seitenansicht eines Bildschirmlesegeräts gemäß einer vierten Ausführungsform der vorliegenden Erfindung; und
• 5a bis 5f verschiedene Einstellungen eines Bildschirmlesegeräts gemäß einer fünften Ausführungsform der vorliegenden Erfindung.

It shows

• 1 a perspective view of a screen reader according to a first embodiment of the present invention;
• 2nd a perspective view of a screen reader according to a second embodiment of the present invention;
• 3rd a perspective view of a screen reader according to a third embodiment of the present invention;
• 4th is a schematic side view of a screen reader according to a fourth embodiment of the present invention; and
• 5a to 5f various settings of a screen reader according to a fifth embodiment of the present invention.

1 shows a perspective view of a screen reader according to a first embodiment of the present invention.

In 1 is a perspective view of a screen reader 1 shown. The screen reader 1 includes a substantially cuboid base 8th , on the wider, lower end of a support table 2nd with a contact surface 2a is arranged. The support table 2nd points in the area of the stand 8th a tour 2 B on so the support table 2nd at least in the positive and negative direction 100 in 1, x -Axis can be moved essentially perpendicular to the plane of the sheet. At the upper end of the rectangular base 8th are swivel joints 10th on the one hand for the image recording device in the form of a camera 3rd and on the other hand for two symmetrically or parallel telescopic arms 6a , 6b arranged. The latter are used to adjust the depth of a display device in the form of a screen 4th .

The screen 4th has controls on its front in the lower area 5a controls on and on its back 5b . The front controls 5a are used, for example, to control the brightness, to control the magnification, etc. of the screen 4th while the controls on the back 5b to change the position of the screen 4th , in particular its inclination and its depth adjustment by means of the support arms 6a , 6b and if necessary to change the position of the camera 3rd , especially in positive and negative directions 101 serve. To the weight of the screen 4th including support arms 6a , 6b to hold is in the stand 8th arranged at least one gas tension spring. Using the controls 5b For example, the brake (s) can be released or locked for a rotary or articulated movement of the support arms, so that when the brake is released, a user can easily see the screen, ie without having to compensate the weight of the screen. move to a new position and then lock the brake again. The screen 4th is then fixed again. Are the controls 5b For example, designed as touch elements, these can be released by pressing and the screen 4th can be adjusted in its position, particularly with regard to its depth and height adjustment, as long as the controls 5b held down. The controls 5b can, for example, include two switches on each side, the upper switches for actuation or electrical control, for example for releasing and locking brakes, for example for joints or axes of rotation of the support arms 6a , 6b , 7 in the stand 8th are arranged and the respective lower switch for controlling the position of the camera 3rd . A console for a hand and / or foot switch can also be connected, with which the camera can then be connected 3rd can be controlled in their movement.

Furthermore is between the two arms 6a and 6b another support arm 7 arranged on which an image recording device 3rd in the form of a movable camera 3rd is arranged. The camera 3rd can along the positive and negative direction 101 be pivoted and the support table 2nd is along the positive and negative direction 100 slidable. If the camera 3rd along the positive and negative direction 101 scans the entire level of the table 2nd using the camera 3rd be added and enlarged in sections if the support table 2nd in positive and negative directions 100 is moved.

Because the support table 2nd in the present embodiment only in the positive and negative directions 100 is displaceable, if a switch or the like is arranged, by means of its actuation a damper device, which is below the support table 2nd and / or in the base 8th can be arranged, switched on or off. When the switch is actuated again accordingly, the damper device can then be switched off again. The switch can, for example, on the screen 4th or even on one on the screen reader 1 connected control console. The switch can be designed as an electrical and / or as a mechanical switch.

By means of the damper device there are different variants for the support table 2nd conceivable: So the movement in positive and negative direction 100 - i.e. the x-axis - and in the positive and negative direction 101 - that is, the y-axis - take place without damping or damping is by means of the damper device for a positive and negative direction 100 , 101 can be activated and / or deactivated. In addition, it is conceivable that the support table 2nd only in positive and negative directions 100 is movable and when scanning the camera 3rd the positive and negative direction 101 , y-axis, takes over. It is also conceivable that the camera 3rd in both positive and negative directions 100 as well as in positive and negative directions 101 can be pivoted, so that the entire support surface of the support table is also 2nd and possibly also beyond using the camera 3rd can be recorded or scanned so that, for example, a book to be read is simply placed on the support table 2nd unfolded and the camera 3rd then the lines from left to right on the screen according to the reading method 4th represents enlarged. The camera 3rd is over the support arm 7 , regardless of the support arms 6a , 6b Of the screen 4th tiltable or rotatable and the screen 4th can thus be independent of the camera 3rd be moved. Movement on the screen 4th is thus from the movement of the camera 3rd completely decoupled except for constructive boundary conditions. The support arm 7 and corresponding joints enable the camera 3rd compensation for changes in the focus distance of the camera 3rd by moving the support arm 7 and camera 3rd relative to the support table 2nd . Alternatively or additionally, such compensation can also be done by moving the camera, etc. 3rd take place within their housing, ie a change in position of the camera housing, which is on the support arm 7 attached, may not be necessary.

2nd shows a perspective view of a screen reader according to a second embodiment of the present invention.

In 2nd is the so-called transport position of the screen reader 1 shown, ie the position in which the components are folded in such a way that the smallest possible packing size or volume of the screen reader 1 results.

To the screen reader 1 of the 1 in the transport position according to 2nd The camera will first convince 3rd on the surface of the table 2nd lowered. Then the screen 4th on the support arms 6a , 6b twisted, ie the screen 4th is in 1 twisted counterclockwise until the back of the screen 4th on the upper part of the support arms 6a , 6b lies on. Then the support arms 6a , 6b pushed together as far as possible and then lowered as far as possible. The back of the screen 4th is then essentially on the top or back of the camera 3rd on. The support table 2nd is moved to its center position as far as possible. The individual components can then be locked in this position and it is used for the screen reader 1 the smallest possible pack size achieved without the need for individual components must be disassembled or electrically separated in order to make it available for transport.

3rd shows a perspective view of a screen reader according to a third embodiment of the present invention.

In 3rd is a screen reader 1 shown, which now provides a so-called "mirror function" for a user. To do this, the screen 4th essentially lowered so far or the position of the camera 3rd raised so far that the camera 3rd over the top of the screen 4th protrudes and thus the face of a user 3rd can record. The screen 4th is then usually in the direction of the upper region of the support arms 6a , 6b rotated so that the user can see his reflection on the screen when looking down slightly 4th can perceive enlarged. One on the support table 2nd This book does not usually have to be removed for this function, as there is still enough space between the bottom edge of the screen 4th or the lower edge of the support arms 6a , 6b and the surface of the table 2nd .

By manual rotation or motorized rotation of the camera 3rd The screen reader can also provide a so-called “table function” or “table viewing function” about its vertical axis / z axis from the position for the mirror function by essentially 180 °. The camera 3rd then points away from a user, for example on a blackboard. A user can then zoom in on a panel image on the screen 4th display which one with the camera 3rd is recorded.

4th shows a schematic side view of a screen reader according to a fourth embodiment of the present invention.

In 4th is a screen reader in schematic form 1 now shown in a side view from the right. In addition, in the stand 8th now one or more interfaces 9 to recognize those with, for example, those with the camera 3rd recorded images and / or text can be transferred to a computer, television or the like. In 4th is also a screen reader 1 shown which is a mirror function 3rd represents, ie the camera 3rd is above the top of the screen 4th arranged. The camera 3rd is preferably provided with a close-up lens with a diopter between 1 and 4, preferably between 2 and 4, in particular 2.5 diopters, and has a distance of approx. 5-15 cm, in particular approx. 10 cm in the negative direction when the mirror function is provided 100 to the screen 4th on. The camera 3rd can be focused in the range between a distance between 10 cm and 30 cm, preferably from 20 cm, in the range from approx. 100 mm-300 mm, preferably from approx. 150-250 mm, in particular from 220 mm, with a maximum magnification and with a minimal magnification in a range of 50 mm -150mm, preferably about 100mm from the camera 3rd up to a distance between approx. 400mm-600mm, preferably between 450mm-550mm, in particular 500mm. The pan range of the camera 3rd is particularly adjustable between about 40 ° and 90 °, the movement of the camera 3rd done manually by a user and in particular is self-locking.

5a to 5f show various settings of a screen reader according to a fifth embodiment of the present invention. The screen reader is viewed from the right, ie on its right side. The angles in the 5a-5f as in the previous one 4th can each deviate by up to approx. 50% -75% upwards and downwards, ie for example a described angle of 20 ° can generally also be any other angle between 10 ° -30 °. The same applies accordingly to the information in millimeters. Of course, these are only examples and do not limit the invention, in particular the claims.

In 5a is essentially a screen reader 1 in the configuration / setting of camera 3rd and screen 4th according to 1 shown. The camera 3rd can measure an angle of 20.2 ° from the vertical position of the camera 3rd paint over. So overall it shows 5a a look at the camera 3rd diagonally forward. In 5b is essentially the screen reader 1 according to 5a shown. In contrast to the screen reader 1 according to 5a is with the screen reader 1 according to 5b the camera 3rd now directed vertically downwards, ie in the configuration "view vertically".

In the 5c is now essentially a screen reader according to 5b shown. In contrast to the screen reader 1 according to 5b is the screen reader 1 in 5c now with a camera swiveled backwards 3rd shown, ie measured from the vertical, the camera sweeps 3rd an angle of 21.58 ° to the rear and thus enables a "view obliquely to the rear". Using the corresponding setting option of the camera 3rd the screen reader 1 according to the 5a to 5c can, as shown, the entire area of the table 2nd along the positive and negative direction 101 be included.

In 5d is a screen reader 1 shown, which provides a mirror function. This is the camera 3rd essentially above the top edge of the screen 4th arranged and pivoted upwards in a range of 8 ° with respect to the horizontal, the camera is pivotable by an angle of between 65 ° and 73 ° overall with respect to the horizontal. The 73 ° swivel range can either be provided by a motor or self-locking via a slip clutch. The stroke of the camera head of the camera 3rd can be specified via a controller. The focus range thus essentially corresponds to the information 4th .

5e shows a screen reader 1 essentially according to 2nd , so in a transport mode. The telescopic arms 6a , 6b are completely pushed together and lie with their lower edge on the upper edge of the camera 3rd . The camera 3rd lies flat with its lens side on the surface 2a of the support table 2nd . The screen 4th is parallel to the support arm 6a , 6b arranged and lies with its back on the upper edge of the support arms 6a , 6b .

5f essentially shows the screen reader 1 according to 5b . Additional dimensions are given here. This is the setting angle of the support arm 7 the camera 3rd inclined by approximately 41 ° with respect to the vertical. The camera axis is in the middle of the table 2nd which is essentially a size of 300mm along the axis 101 having. The distance between the axis of the camera 3rd and the middle of the joint 10th or center of the base 8th corresponds essentially to 233mm along the axis 101 . The maximum stroke of the camera head of the camera is preferably 3rd approx. 62mm and the swivel range of the camera head of the camera 3rd is approximately 120 °. The camera 3rd preferably comprises a close-up lens with 2.5 diopters, the distance from the camera base surface preferably being 380 mm. The focusing range is preferably 50 mm, the minimum magnification is preferably simple, the maximum optical magnification is preferably at least 15 times, in particular at least 20 times, preferably at least 26 times, particularly preferably 26.5 times. The stand 8th preferably has a height of 175 mm, measured from the upper edge of the support table 2nd to the center of the joints 10th for the support arms 6a , 6b .

• - gleichmäßigere Bewegung des Auflagetisches
• - einfachere Handhabung
• - höhere Benutzerfreundlichkeit
• - zuverlässiges Lesen von Leseprodukten
• - zuverlässigere, genauere Positionierung des Auflagetisches.

In summary, the invention or the embodiments, among other things, can achieve at least one of the following advantages:

• - smoother movement of the support table
• - easier handling
• - higher usability
• - reliable reading of reading products
• - More reliable, more precise positioning of the support table.

Reference symbol list

1

Bildschirmlesegerät

2

Kreuztisch

2a

Auflagefläche

2b

Führung Kreuztisch

3

Kamera

4

Bildschirm

5a

Bedienelemente Front

5b

Bedienelemente Rückseite

6a

Teleskoparm Bildschirm

6b

Teleskoparm Bildschirm

7

Tragarm Kamera

8

Standfuß

9

Schnittstelle

10

Gelenk

100

horizontale Verschiebungsrichtungen, x-Achse

101

vertikale Verschiebungsrichtungen, y-Achse

4 und 5a-f

A

220; Scharfstellbereich bei max. Vergrößerung unter Begrenzung der Vergrößerung auf ca. 40 % (ref. zum Diagramm unten)

B

400; Scharfstellbereich bei minimaler Vergrößerung

C

Einstellbereich: ca. 40° bis 90°, selbsthemmend

D

100

E

200

E'

Nahlinse: 2,5 dpt

F

20,20°

G

79,18 (Maximum; +3 mm Sicherheit)

H

24,7

J

(1,17)

K

21,58°

L

23,56 (Minimum; +3 mm Sicherheit)

M

73°

N

65°

O

25°

O'

z. B. 55,7°

P

8°

Q

464

R

252

AA

150,327

BB

233, 427

CC

174,98

DD

380

EE

41,38°

FF

10,7

Fig. 5a

Blick schräg von oben

Fig. 5b

Blick senkrecht

Fig. 5c

Blick schräg nach hinten

Fig. 5d

Spiegelmodus und Häkelmodus 73° Schwenkbereich (motorisch) selbsthemmend über Rutschkupplung), Hub des Kamerakopfes über Steuerung vorgegeben (Festlegung), Scharfstellbereich siehe Blatt 2

Fig. 5e

Transportmodus; Maximaler Hub Kamerakopf: ca. 62 mm genutzter Hub des Kamerakopfes: ca. 55,2 mm Schwenkbereich Kamerakopf: ca. 119,6° Nahlinse: 2,5 dpt (Abstand zur Kameragrundfläche 380 mm) Scharfstellbereich: 50 mm, (dann Begrenzung Zoom) minimale Vergrößerung: 1fach maximale Vergrößerung: 26,5fach

Fig. 5f

Grundmaße

1

Screen reader

2nd

Cross table

2a

Contact surface

2 B

Guided tour of the cross table

3rd

camera

4th

screen

5a

Front controls

5b

Controls on the back

6a

Telescopic arm screen

6b

Telescopic arm screen

7

Support arm camera

8th

Pedestal

9

interface

10th

joint

100

horizontal directions of displacement, x-axis

101

vertical directions of displacement, y-axis

4th and 5a-f

A

220 ; Focusing range at max. Magnification limiting the magnification to approx. 40% (ref. To the diagram below)

B

400 ; Focus range with minimal magnification

C.

Setting range: approx. 40 ° to 90 °, self-locking

D

100

E

200

E '

Close-up lens: 2.5 dpt

F

20.20 °

G

79.18 (maximum; +3 mm security)

H

24th , 7

J

( 1 , 17th )

K

21.58 °

L

23.56 (minimum; +3 mm security)

M

73 °

N

65 °

O

25 °

O'

e.g. B. 55.7 °

P

8 °

Q

464

R

252

AA

150 , 327

BB

233 , 427

CC

174 , 98

DD

380

EE

41.38 °

FF

10th , 7

Fig. 5a

View obliquely from above

Fig. 5b

Looking vertically

Fig. 5c

Look back obliquely

Fig. 5d

Mirror mode and crochet mode 73 ° swivel range (motorized, self-locking via slip clutch), stroke of the camera head specified via the control (definition), focus range see sheet 2nd

Fig. 5e

Transport mode; Maximum stroke camera head: approx. 62 mm used stroke of the camera head: approx. 55.2 mm swivel range camera head: approx. 119.6 ° close-up lens: 2.5 dpt (distance to the camera base area 380 mm) focusing range: 50 mm, (then limitation zoom ) minimum magnification: 1x maximum magnification: 26.5x

Fig. 5f

Basic dimensions

Claims (12)

Screen reading device (1), comprising a support table (2) for supporting a reading product, an image recording device (3) for detecting text and / or images of at least part of the reading product and a display device (4) for displaying those recorded with the image recording device (3) Texts and / or images, the support table (2) being displaceable in the plane of its support along at least one axis (100, 101), characterized in that a damper device is arranged for the support table (2), the damper device being designed in this way that this dampens a displacement of the support table (2) along the at least one axis in one direction (100, 101), and that when the support table (2) is locked along a axis, a pressure and / or tension sensor is switched such that by means of When the pressure and / or tension sensor is triggered by a user, the image recording device (3) can be moved in such a way that it moves the Au flagetic (2) along the other axis (101, 100) is balanced. Screen reader (1) according to Claim 1 , characterized in that the damper device is switchable. Screen reader (1) according to one of the Claims 1 - 2nd , characterized in that the support table (2) is designed to be displaceable along a plurality of axes (100, 101) and the damper device is switchable for each direction (100, 101) in which the support table (2) is designed to be displaceable. Screen reader (1) according to one of the Claims 1 - 3rd , characterized in that at least one switch is arranged which cooperates with the support table (2) for switching the damper device. Screen reader (1) according to one of the Claims 1 - 4th , characterized in that a switch is arranged for each direction of displacement (100, 101) of the support table (2). Screen reader (1) according to one of the Claims 4 - 5 , characterized in that the damping that can be provided by the damper device is adjustable. Screen reader (1) according to Claim 1 - 6 , characterized in that the support table (2) can be locked in at least one direction (100, 101). Screen reader (1) according to one of the Claims 1 - 7 , characterized in that the screen reader (1) is designed to be collapsible. Screen reader (1) according to one of the Claims 1 - 8th , characterized in that the damper device can be mechanically switched on and / or off. Screen reader according to one of the Claims 1 - 9 , characterized in that the damper device is designed to be passive. Screen reader according to one of the Claims 1 - 10th , characterized in that the support table is actively movable. Method for operating a screen reader (1) according to one of the Claims 1 to 11 The screen reading device comprises a support table for supporting a reading product, an image recording device for recording at least a part of the support table and a screen for displaying an image recorded with the image recording device, characterized in that a displacement of the support table (2) along an axis (100, 101) is damped in the plane (100, 101) of its support by means of a damper device in at least one direction along the axis (100, 101) and that when the support table (2) is locked, a pressure and / or tension sensor is switched along an axis in such a way that the image recording device (3) can be moved by a user triggering the pressure and / or tension sensor such that it compensates for any movement of the support table (2) along the other axis (101, 100).

Images