Covering apparatus for head-mounted visual output devices, output device sets, and methods

Abstract

The present invention relates to a covering device (10) for a head-mounted visual output device (20), which partially encloses the output device and can be adjusted to meet the requirements of the respective area of ​​use. The covering device comprises a bag (11) and edge strips (11) of the bag. S ) to the module section (21) of the functional module (21) for mounting on the forehead of the output device. B The present invention further relates to a method for partially encasing a head-mounted visual output device (20) and an output device set (100) including a head-mounted visual output device (20) and a matching cover apparatus (10).

Description

[Technical field]

[0001] The present invention is directed to a covering device for a head-mounted (i.e., designed to be worn on the head) visual output device. The present invention further relates to an output device set including a head-mounted visual output device and a covering device, and to a method for partially enveloping a head-mounted visual output device. [Background technology]

[0002] Head-mounted visual output devices, also called "head-mounted displays", exist in various configurations and for various application areas. Known output devices of this kind preferably include a forehead-mounted (i.e. intended to be worn on the forehead) functional module, which includes a display device that is held in front of both or at least one of the user's eyes when using the output device. Alternative embodiments position the functional module also on the side of the head, possibly using only monocular display. Furthermore, such output devices include a head holder with which the user can fix the forehead-mounted functional module to the head. Such a head holder may, for example, include temple and / or parietal support bands and / or at least one corresponding support rim or temple.

[0003] In addition to the display device, the functional module for forehead mounting may at least partially include, in particular, a forehead pad, device control functions, at least one data storage, at least one camera, at least one sensor, at least one operating element, and / or at least one microphone.

[0004] At least one further, e.g. rear-of-the-head mounted, functional module may also be fixed to the head holder, which may include, inter alia, at least one (preferably rechargeable) battery, at least one antenna, at least part of the device electronics, at least one data storage, and / or at least one operating element.

[0005] Another embodiment of such an output device can also be connected via a cable or via a wireless connection to an external functional module, which can be, for example, worn on a belt or formed by an external computer. Some devices are completely voice-controlled and can therefore dispense with button-operated elements. In a special embodiment, a main switch can be integrated into the hinge mechanism of the output device, automatically turning the device on or off depending on the hinge position.

[0006] Such visual output devices, when in use, can either restrict the user's view only to the artificial content displayed in each case (e.g. as pure video glasses or virtual reality headsets) or simply extend the user's natural view of the surroundings with additional information (e.g. as augmented reality glasses). Here, they can be used both in the entertainment and professional fields, for example to simulate, in particular to practice, certain activities or to artificially support the performance of certain actions, respectively. Fixation to the head ensures the wearer maximum freedom of movement and in particular allows the use of both hands for actions, for example to influence the content displayed in each case and / or to carry out complex work processes depending on the information displayed in each case.

[0007] JP 2018-137626 A shows an image generating device that is part of a hat and includes a holder having an extension. Furthermore, the image generating device includes an image display device attached to the extension. Furthermore, a hat body is also visible in the drawing, which is surrounded in its lower region by a ring-shaped hat body part. This device therefore allows the attachment of a head-mounted display to the helmet.

[0008] US Patent Application Publication No. 2020 / 0033601 describes a head-mounted display system in which a user of the system preferably wears a fabric hat having a number of haptic feedback actuators attached thereto.

[0009] A head holder for realizing a head-mounted display is known from German utility model no. 202021003714. A foldable frame is described which can be placed on the user's head and can be shaped as desired. Summary of the Invention

[0010] The object of the invention is to provide a technique which makes it possible to adapt head-mounted visual output devices to the requirements according to their respective areas of use, thereby easily and comfortably expanding the range of possible uses for these output devices.

[0011] This object is achieved by a cover arrangement according to claim 1, an output device set according to claim 6 and a method according to claim 9. Advantageous embodiments are disclosed in the dependent claims, the description and the drawings.

[0012] The cover device according to the present invention is an add-on component for a head-mounted visual output device that includes a forehead-mounted functional module having a display device and a head holder (for fixing it to the user's head).

[0013] The cover device comprises a bag designed or adapted to fit over the head retainer (in its intended form for use) and over the section of the functional module that is spaced from the display device (hereinafter referred to as the "module section"), where the bag does not explicitly undertake a support function but serves to protect or encase the head retainer and the module section. This allows the bag to be quickly removed or replaced after use, so that all other components of the output device can still be used, for example when a user changes.

[0014] Furthermore, the covering device comprises a holding frame, which is designed to clamp an edge strip of the bag (i.e. a strip-like area at the edge of the bag surrounding the bag opening) to a module section that is spaced apart from the display device, thereby closing the bag by the functional module, with the display device uncovered. The holding frame is removable after subsequent opening of the clamping area and can therefore be removed again without damage from the functional module, in particular the module section, i.e. this terminates the clamping and allows the bag to be peeled off.

[0015] Preferably, the holding frame has a variable shape. Such a frame can be particularly easily attached to the functional module for forehead mounting and detached again. The holding frame can in particular be releasable, i.e. can be selectively (repeatedly) opened and closed, and can only form the frame shape in the closed state, i.e. enclose the frame interior.

[0016] The output device set according to the present invention includes a head-mounted visual output device having a head holder and a forehead-mounted functional module including a display device, and further includes a cover device according to an embodiment of the present invention.

[0017] Here, the cover device is suitable for an output device, i.e. the bag is suitable for accommodating the head holder and (at the same time) at least one module section of a functional module that is spaced apart from the display device, and the holding frame is designed to clamp the edge strips of the bag to the module section that is spaced apart from the display device, thereby closing the bag by the functional module with the display device uncovered. To terminate the clamping, the holding frame can be removed without damage from the functional module, in particular from the module section.

[0018] In particular, the holding frame therefore has a shape that is at least partially adapted to the output device, whereby the holding frame can at least partially match the shape of the module section that is spaced apart from the display device and can be (preferably snugly) inserted into the module section when clamped.

[0019] The method according to the invention is used to partially encase a head-mounted visual output device, which comprises a functional module for forehead mounting with a display device and a head holder. The method comprises: using a covering device according to an embodiment of the invention, a bag is placed over the head holder and also over a module section of the functional module for forehead mounting, which is spaced apart from the display device. According to the method, an edge strip of the bag is then clamped by the holding frame of the covering device to the module section, which is spaced apart from the display device, so that the bag is closed by the functional module (which is arranged in the bag together with the module section) with the display device uncovered. To complete the enclosure of the output device, the holding frame can preferably be removed from the functional module without damage, i.e. the clamping can be completed thereby.

[0020] The holding frame and the bag are each preferably individual (in particular separate or separable) components, which in particular allows for interchangeability of the bag and at the same time allows for multiple use of the holding frame.

[0021] The present invention thus allows a head-mounted output device to be partially enveloped by a cover device, while still allowing the user to see the display device and thus the visual information output by the output device, and thus continue to use the output device (preferably without restrictions), where a removable holding frame allows repeated use of the output device, selectively with or without the cover device, easily and comfortably.

[0022] Thus, the user can quickly and easily adapt the output device for use in the respective environmental situation. In particular, if the material of the bag is appropriately selected, it is possible to prevent moisture or particles (e.g. dust or dirt) from entering the output device, which would otherwise be damaging, for example from the user's head or from the environment in which the output device is used. Furthermore, it is possible to achieve, conversely, in clean rooms, compliance with the locally applicable regulatory guidelines even when using the output device, by preventing particles that may be present in the output device from contaminating the respective clean room. The functional module for the forehead attachment closes the bag, so that the output device can be comfortably worn and removed again while still maintaining its protective effect, even in such a partially wrapped state.

[0023] The clamping is preferably effected directly, ie in contact between the bag and the module section and the holding frame respectively, without any further elements being arranged between them.

[0024] According to an advantageous embodiment of the invention, the holding frame is further designed during clamping to keep one or more further possible functional elements of the output device (such as in particular at least one sensor and / or at least one camera) at least partially uncovered by the bag, i.e. outside the bag, so that these functional elements can remain usable (preferably without constraints) even when the output device is partially enveloped by the cover device.

[0025] Alternatively or additionally, the holding frame can have at least one frame region with at least one opening connecting the frame interior enclosed by the holding frame with the environment outside the frame. In this way, a housing opening that may be present in the output device can be covered with a bag, but still be accessible through the holding frame, and the functionality of the housing opening (e.g. for ventilation or as access to a microphone or sensor) can be maintained.

[0026] According to an advantageous embodiment, the holding frame forms at least one receiving recess for the functional module for forehead mounting, into which the functional module can be inserted for clamping the edge strip of the bag. Such a receiving recess can advantageously define at least one position in which the functional module for forehead mounting should be located relative to the holding frame during clamping. The holding frame can thus be particularly easily designed and can achieve advantageously sealed, secure and slip-free clamping of the functional module which can be placed on the forehead. In particular, in a corresponding embodiment, it can thus be facilitated to hold at least one further functional element on the outside of the bag as described above during clamping and / or to appropriately position at least one opening (possibly present) of the holding frame in the housing opening of the functional module for forehead mounting.

[0027] The bag is preferably at least partially made from a flexible material, especially a fabric, foil, and / or paper-like material, such as a cloth, fleece (which may be formed, for example, from polyethylene filaments), and / or film.

[0028] According to an advantageous embodiment of the invention, the bag is at least partially waterproof and / or impermeable to inorganic dust particles and / or organic structures, e.g. to fungal spores, bacteria or viruses. The thickness of the material of the bag is preferably (at least partially) less than 1 mm or less than 0.5 mm.

[0029] Likewise, the connection between the bag and the functional module created by the clamp is preferably waterproof and / or impermeable to inorganic dust particles and / or organic structures, e.g. to fungal spores, bacteria or viruses, so that moisture or the respective particles and / or structures cannot reach through the connection into or out of the bag.

[0030] According to an advantageous embodiment, the bag is suitable for accommodating the head holder and a module section of the functional module for forehead mounting that is spaced from the display device as well as at least one further functional module, optionally additionally included by the output device, e.g. a functional module for back of the head mounting.

[0031] The holding frame may preferably consist at least partially of (especially fiber-reinforced) ceramic, plastic, carbon and / or metal. Such materials are particularly durable and also easy to clean. The holding frame may, for example, comprise at least one component produced by 3D printing, injection molding and / or pressing.

[0032] According to an advantageous embodiment, the holding frame has at least one shape-stable (particularly rigid) area, which makes handling particularly easy and, moreover, the dimensional stability also prevents the holding frame from easily and undesirably slipping off the output device.

[0033] The surface of the holding frame may comprise at least one strip facing the output device when clamped, the strip width (as its smaller dimension) being at least 1 cm, at least 2 cm, or even at least 3 cm, where the strip may be configured to extend parallel to the intended viewing direction in the direction of the strip width when clamped, or to extend at an angle, in particular perpendicular to the intended viewing direction, where the intended viewing direction is understood as the direction in which a user of the output device is expected to view the display device.

[0034] Such a holding frame allows the bag to be pressed against the functional module along the strip width, thereby achieving a particularly durable, load-bearing and tightly sealed clamping of the edge strip of the bag to the functional module for forehead mounting.

[0035] According to an advantageous embodiment, the holding frame comprises two separable (preferably at least partially rigid) frame elements. Here, the frame elements can be releasably connected to one another by at least one further (particularly separate) element of the holding frame in order to close the holding frame (and thus to form a frame shape). Such a further element can, for example, comprise an adjustable belt and / or consist at least partially of an elastic material (e.g. silicone and / or rubber), in particular formed as a ring. At least one of the frame elements can comprise at least one fastening element designed to fasten the further element to the corresponding frame element, thereby realizing the connection of the frame elements. Alternatively or additionally, at least one of the frame elements can comprise an integrated locking device, for example a latch and / or a locking device, by which the frame elements can be connected. When clamping, the interconnected frame elements can be in contact with one another or spaced apart from one another.

[0036] According to another exemplary embodiment, the holding frame may comprise two (preferably at least partially rigid) wings pivotably connected to each other at a joint, which wings may be releasably connected to each other at their respective ends opposite the joint by at least one further (particularly separate) element of the holding frame and / or by a locking device integrated in at least one of the wings, in order to form the frame. As above, the at least one further element in such an embodiment may comprise an adjustable belt and / or may at least partially consist of an elastic material (e.g. silicone and / or rubber), in particular formed as a ring. At least one of the wings has at its end opposite the joint at least one fixing element, which is designed to fix the further element to the corresponding wing, thereby realizing the connection of the wings. The above-mentioned integrated locking device, if present, may comprise, for example, a latch and / or a locking device. When clamped, the interconnected wings may be in contact with each other or spaced apart from each other.

[0037] In particular, in these exemplary embodiments described as examples, at least one of the frame elements or at least one of the wings may form a receiving recess for a functional module for forehead mounting as described above.

[0038] It should be understood that other alternative configurations for the support frame are possible as well. In particular, the support frame may be one piece or multi-piece.

[0039] According to an advantageous embodiment of the invention, the holding frame is provided with a three-dimensional profile, i.e. a tactilely detectable structure, on the surface facing the module section that is spaced away from the display device when clamped. Such a profile may for example include one or more projections, grooves, rails and / or ridges.

[0040] In particular, such a profile can be designed in such a way that, during clamping, the edge strips of the bag are pressed against said module section with a highly distributed force action, which reduces the slipperiness of the bag relative to the holding frame and thus allows a particularly durable fixation of the bag to the output device.

[0041] Alternatively or additionally, the holding frame may include one or more stabilizing structures that are designed to interact with counter structures on the functional module for forehead mounting and thereby stabilize the fixation. Such interaction may in particular include engagement of the stabilizing structure with the counter structure and / or engagement of the counter structure with the stabilizing structure.

[0042] According to an advantageous embodiment of the output device set according to the invention, the edge strip of the bag can be clamped to a functional module that can be positioned on the forehead, such that the bag covers at least one, preferably all, area of ​​the output device that is not suitable for wet cleaning. Correspondingly, in the method according to the invention, the clamping is preferably performed such that the bag covers at least one, preferably all, area of ​​the output device that is not suitable for wet cleaning. In this way, depending on the material and the application area, the bag can prevent moisture from the environment from damaging the output device and / or particles or structures that cannot be removed from such areas because wet cleaning is not possible there from getting into the environment of the output device set used, for example a clean room, and thereby contaminating this environment.

[0043] Similarly, in certain applications, it is important that the parts of the output device inside the bag can be cleaned as often as necessary during use of the output device set, some using strong cleaning agents or chemicals, such that any waste generated is contained within the bag and cannot contaminate the environment.

[0044] In particular, the housing element of the functional module for forehead mounting may have at least one housing opening in the module section that is remote from the display device. In such a case, the holding frame preferably has at least one frame area with at least one opening (as described above), which is or is arranged at least partially over the at least one housing opening covered by a portion of the bag wall when the edge strip of the bag is clamped. Thus, the function of the housing opening, for example for ventilating the functional units of the output device or as access to a sensor or microphone, can be maintained even in the state of the output device partially enveloped by the cover device.

[0045] In the following, preferred exemplary embodiments of the present invention will be described in more detail based on the drawings. It should be understood that the individual elements and components can be combined in different ways than shown. Reference numerals relating to elements that correspond to each other are used throughout the drawings and may not be mentioned again in each figure. [Brief description of the drawings]

[0046] [Figure 1a] FIG. 1 is a perspective view of an exemplary head-mounted visual output device according to the prior art. [Figure 1b] FIG. 1b is a side view showing the output device of FIG. 1a as worn on a user's head for that purpose. [Diagram 2] 1 shows an exemplary embodiment of a cover device according to the present invention; [Diagram 3] 3 is a view showing the holding frame of the cover device of FIG. 2 from another angle. [Figure 4a] 1 shows an output device set according to an exemplary embodiment of the present invention in an exploded view or during the implementation of a method according to the present invention; [Figure 4b] 4b shows the output device set of FIG. 4a in a side view, in an exploded view, or during the implementation of a method according to the invention; [Figure 4c] FIG. 4b shows an output device set according to FIGS. 4a and 4b in use on a user's head for a particular purpose. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0047] 1a and 1b show an example of a head-mounted visual output device 20. Here, according to the present invention, the output device 20 includes a display device 21. A and forehead pad 21 S The head support device 23 includes a functional module 21 for mounting on the forehead, a further functional module 22 for mounting on the back of the head, and a head support device 23, which includes, according to the present invention, a temple support band 23. S and a top support band 23 O belongs to.

[0048] As can be seen in FIG. 1b, the temple support band 23 S The further functional module 22 is fitted with an adjustment wheel 23. E The display device 21 can be adjusted to fit each head size by the A See Top Support Band 23 O forms an adjustable strap to fit each head size.

[0049] The forehead-mounted functional module 21 may include at least part of the device electronics (in particular at least part of the device control functions, at least one data storage, at least one camera, at least one sensor, at least one operating element, and / or at least one microphone). The forehead-mounted functional module 21 may be mounted in a housing element 21. G is at least partially surrounded by

[0050] Here, the housing element 21 G Housing opening 21 L and a housing opening 21 L can be used, for example, for ventilation of the components accommodated therein. L In this region, wet cleaning of the output device can impair the function of the output device. Thus, particles, in particular organic structures (e.g. fungal spores, bacteria or viruses) or inorganic particles, which could not previously be removed for this reason, can reach the environment of use from the output device (in particular through the housing openings) and possibly contaminate the latter. Conversely, when the output device 20 is used, for example in a humid or dusty environment, the functional module 21 can be moved through the housing openings 21 L Damage can occur through

[0051] The same applies to the further functional module 22, which may for example include at least one (preferably rechargeable) battery, at least one antenna, at least part of the device electronics, at least one data storage and / or at least one operating element (none of which are visible in the figure), and which typically comprises module sections that are not waterproof and in particular cannot be wet cleaned.

[0052] The covering device 10 according to the invention makes it possible to overcome these drawbacks.The covering device 10 can be constructed in particular according to the exemplary embodiment shown in figures 2 to 4c.

[0053] Here, in Fig. 2, only the cover device 10 is shown in an exploded view. The cover device 10 includes a bag 11, which, as can be seen in Figs. 4a to 4c, includes a further functional module 22 for wearing on the back of the head, a head holder 23, and a display device 21. A The module section 21 of the forehead-mounted functional module 21 is spaced from the B It is designed (adapted) to be placed over the

[0054] Preferably, the bag 11 is at least partially made from a flexible material, in particular a material such as fabric, foil and / or paper. In particular, the bag may be impermeable to organic structures, such as fungal spores, bacteria and / or viruses, which may be present in particular in areas of the output device that cannot be wet cleaned.

[0055] As can be further seen in FIG. 2, the bag 11 is secured to the edge 11 of the bag. R The bag opening OE is defined by the edge strip 11. S , i.e. edge 11 R The strip-shaped area in the display device 21 A The module section 21 of the forehead-mounted functional module 21 is spaced from the B 4a to 4c, thereby closing the bag 11.

[0056] Here, for clamping, a holding frame 12 is used, which is also included by the covering device 10, which according to the invention is configured as a releasable frame with two separate frame elements 12a, 12b, each of which is form-stable (rigid), and which comprises two further elements 12c, 12d. Figure 3 shows the frame individually and in a different perspective than in Figure 2. In Figures 2 and 3, the frame is respectively shown in an exploded view, which corresponds to the released state. In particular, the holding frame 12 is configured with edge strips 11 S Module Section 21 B By establishing this release state, the holding frame 12 is able to release the forehead-mounted functional module 21, particularly its module section 21, when the forehead-mounted functional module 21 is clamped to the forehead. B from the output device 20 (preferably without damage) and the bag 11 can then be peeled off again from the output device 20.

[0057] The further elements 12c, 12d are each used to connect the two frame elements 12a, 12b to each other (at the respective ends of the frame elements). In the illustrated exemplary embodiment, the further elements 12c, 12d are configured as oval rings and are preferably elastic (e.g. made at least partially of rubber and / or silicone). To connect the frame elements 12a, 12b, the further elements 12c, 12d are fixed to the fastening elements 12a, 12b formed at the ends of the frame elements 12a, 12b, respectively. A , 12b A and thereby fixed to the frame element.

[0058] The frame element 12a forms, according to the invention, a receiving recess for the forehead-mounted functional module 21. This defines a clamp-suitable position of the holding frame 12 relative to the forehead-mounted functional module 21, which can correspondingly be easily achieved by the user.

[0059] As can be seen in FIG. 2, according to the invention, the frame element 12a is attached to the edge strip 11 of the bag 11. S When clamping module section 21 B The frame element 12b has a surface including a surface strip S1 of strip width B1 facing the module section 21 when clamped. B 4c)。 Here, in the illustrated exemplary embodiment, the strip S1 extends parallel to the intended viewing direction (see FIG. 4c) in the direction of its strip width B1, and the strip S2 extends perpendicular to the intended viewing direction in the direction of its strip width B2. Preferably, at least one of the strip widths is at least 1 cm, at least 2 cm, or even at least 3 cm. The holding frame thereby allows the edge strip 11 of the bag 11 to the functional module 21 for forehead wearing to be attached to the forehead. R In the illustrated exemplary embodiment, the strip widths B1 and B2 are different from one another, in particular B1>B2 according to the invention.

[0060] As can be seen in particular from FIG. 3, the holding frame 12 has on its frame elements 12a, 12b two stabilizing structures 12a, 12b, here in the form of pins, according to the invention. S , 12b S These stabilizing structures 12a S , 12b S are designed to interact with respective counter structures (not visible in the figures) on the output device, i.e. according to the invention to engage in respective recesses or openings in the surface of the functional module 21. The stabilizing structures serve to ensure a particularly stable and in particular slip-free fixation of the holding frame 12 to the forehead-mounted functional module 21 during clamping.

[0061] Furthermore, according to the present invention, the two frame elements 12a, 12b each have a display device 21 when clamped. A Module section 21 spaced apart from BDue to perspective, in Fig. 2 the three-dimensional profile can only be seen for frame element 12b, while Figs. 3 and 4b also show the profile for frame element 12a. Here, the three-dimensional profile is, according to the invention, a multi-profile element 12a P , 12b P , which in the illustrated exemplary embodiment are each configured as a protrusion. This profile serves to generate an uneven force action at various points during clamping, thereby reducing the slipperiness of the bag 11 relative to the holding frame 12.

[0062] In Figures 4a-4c an exemplary embodiment of an output device set 100 according to the invention is shown in various views, comprising an output device 20 as shown in Figures 1a, 1b and 2 and a cover arrangement 10 according to the invention, where Figure 4c shows the output device set 100 in use. To allow a better understanding of the arrangement, hidden components are shown in dashed lines in Figures 4a-4c respectively.

[0063] Here, in Figs. 4a and 4b, the edge strip 11 of the bag 11 is S When the display device is clamped, the holding frame 12 is clamped to the module section 21 of the forehead-mounted functional module 21, which is spaced apart from the display device. B In particular, the frame elements 12a, 12b of the holding frame 12 are shown engaging with the housing element 21. G The clamping member 24 has a shape adapted to the functional module 21 and further partially matches the shape of the functional module 21, so that the clamping member 24 is inserted snugly into the functional module 21 when clamped.

[0064] Therefore, according to the present invention, the two openings 12a formed in the holding frame 12 L Each housing opening 21 covered by the bag 11 L In this way, the housing openings 21 (e.g., as ventilation openings) are arranged on each one of the housing openings 21. LThe function of the housing opening 21 can still be maintained. L can be covered and protected by a bag.

[0065] Similarly, the opening 12b disposed in the frame element 12b L Also, housing element 21 G may be or can be located over a housing opening (not visible in the figure).

[0066] In FIG. 4c, the bag 11 is shown with its edge strips 11 S The display device 21 is supported by the holding frame 12. A The module section 21 of the forehead-mounted functional module 21 is spaced from the B It can be seen that the bag 11 is clamped to the forehead and thus closed by the functional module 21 for forehead mounting. Here, the display device is not covered and in particular the user's eyes and the display device 21 are not visible. A The intended viewing space S between is not covered by the covering device 10.

[0067] This partial envelopment allows the user to comfortably remove the output device set 100 from his head, for example for a break in use, particularly during work breaks, and later reattach it without losing the protective effect achieved by the covering device 10.

[0068] It should further be understood that the user may also wear protective clothing (not shown in FIG. 4 c ), particularly between the head and the output device 20 mounted with the cover apparatus 10 . [Explanation of symbols]

[0069] 10 Cover device 11 bags 11 R Bag edge 11 S Bag edge strips 12 Retaining Frame 12a, 12b Frame elements of the holding frame 12a F , 12b F Fixed elements 12a S , 12b S stabilizing element 12a P , 12b P Profile Elements 12a L , 12b L Opening 12c, 12d Further elements of the holding frame 20 Output Devices 21 Functional module for forehead mounting twenty one A display device twenty one B Module section spaced apart from the display device twenty one G Housing elements twenty one L Housing opening twenty one S Forehead pad 22 Further Functional Modules 23 Head holder twenty three E Adjustment wheel twenty three O Top of head support band twenty three S Temple Support Band 100 Output Device Set B1, B2 strip width OE bag opening S. Desired visual space S1, S2 surface strips

Claims

1. A cover device (10) for a visual output device (20), the visual output device (20) comprising a head holder (23) and a display device (21). A and a functional module (21) for mounting, the functional module having a cover device comprising: On the head holder (23), and at least the display device (21 A The module section (21) of the functional module (21) is spaced from the B A bag (11) for covering the top of the The edge strips (11) of the bag (11) S ) to the display device (21 A The module section (21) is spaced apart from the B ) and thereby clamping said display device (21 A a holding frame (12) designed to close said bag by means of said functional module (21) while the bag is uncovered; A cover device (10).

2. 2. The covering device according to claim 1, wherein the bag (11) consists at least partly of a flexible material, in particular a fabric, a fleece and / or a film.

3. The holding frame (12) two separate frame elements (12a, 12b) which can be releasably connected to one another by at least one further element (12c, 12d) of the holding frame (12) and / or by a locking device integrated in at least one of the frame elements in order to form the frame shape of the holding frame, or two wings pivotably connected to each other at a joint, which can be releasably connected to each other at their respective ends opposite the joint by at least one further element of the holding frame and / or by a locking device integrated in at least one of the wings, in order to form the frame shape of the holding frame; The cover device according to claim 1 or 2, comprising:

4. The holding frame (12) has at least one opening (12a) in at least one frame region. L , 12b L The cover device according to any one of claims 1 to 3, further comprising:

5. The holding frame (12) holds the display device (21) when clamped. A ) a module section (21) spaced apart from B 5. The cover device according to claim 1, further comprising a surface facing the substrate, the surface having a three-dimensional profile.

6. A head holder (23) and a display device (21 A and a head-mounted visual output device (20) having a forehead-mounted functional module (21) including a display unit (22) and a cover device (10) adapted to said output device according to any one of claims 1 to 5.

7. The bag (11) is held by the holding frame (12) so that at least one, preferably all, area of ​​the display device (20) that is not suitable for wet cleaning is located inside the bag. A The module section (21) is spaced apart from the B 7. The output device set of claim 6, wherein the output device set can be clamped to a value equal to or less than the predetermined value.

8. The housing element (21) of the functional module (21) for forehead mounting G ) at least one housing opening (21) in the module section spaced from the display device. L ), the holding frame (12) is constructed according to claim 5, and the at least one opening (12a) of the holding frame L , 12b L ) is the display device (21 A The module section (21) is spaced apart from the B At least one housing opening (21) covered by the bag (11) when the edge strip of the bag (11) is clamped to the bag (11). L 8. The output device set of claim 6 or 7, which can be at least partially disposed on a surface of the output device.

9. A head holder (23) and a display device (21 A and a forehead-mounted functional module (21) having a lens, the lens comprising: The bag (11) of the cover device (10) according to any one of claims 1 to 5 is attached to the head holder (23) and to a module section (21) of the functional module (21) that is spaced from the display device. B ) and placing it on top of the The edge strips (11) of the bag (11) are held by the holding frame (12) of the cover device. S ) to the module section (21) which is spaced apart from the display device. B ) to clamp the display device (21 A closing the bag by the functional module while the bag is uncovered. The method includes:

10. The bag (11) is separated from the display device by the holding frame (12) so that at least one, preferably all, area of ​​the output device (20) that is not suitable for wet cleaning is located inside the bag (11). B 10. The method of claim 9, wherein the signal is clamped to

Images