CN113057552A

CN113057552A - Dishwasher with aerial imaging function, method and storage medium

Info

Publication number: CN113057552A
Application number: CN202110326164.3A
Authority: CN
Inventors: 范超; 韩东成
Original assignee: Anhui Dongchao Technology Co ltd
Current assignee: Anhui Dongchao Technology Co ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-07-02

Abstract

The invention discloses a dish washer with aerial imaging function, which comprises a box body; a panel mounted on the case; the main control system can control the waterway system to clean tableware in the box body; the optical display module assembly, the optical display module assembly sets up link to each other on the panel and with major control system, the optical display module assembly includes: the device comprises an imaging module, a detection module and a control module, wherein the imaging module is used for forming a floating real image in the air, the detection module is used for detecting the operation of a user on the floating real image and feeding back a detected interaction signal to the control module, and the control module generates a corresponding control signal according to the interaction signal and sends the control signal to a main control system. According to the dishwasher with the aerial imaging function, the difficulty of operating the dishwasher can be reduced, and meanwhile, the dishwasher is clean and sanitary in non-contact operation.

Description

Dishwasher with aerial imaging function, method and storage medium

Technical Field

The present invention relates to the technical field of dish washing machines, and more particularly, to a dish washing machine having an aerial imaging function, a method of operating the same, and a storage medium.

Background

In the prior art, a dishwasher is generally provided with a liquid crystal touch screen to display information of the dishwasher, and a user can touch a button on the liquid crystal touch screen to complete the operation of the dishwasher. However, when the user clicks and controls the dish washer, the user needs to press the solid key on the dish washer, because the solid key is smaller, the control difficulty is larger, and there are accidental risks such as electric shock, and the while often can remain greasy dirt residue on the surface of the dish washer for the contact operation is not clean and sanitary.

Disclosure of Invention

The invention provides a dishwasher with an aerial imaging function, which has the advantages of easiness in operation and control, no contact, cleanness, sanitation and high safety performance.

In a first aspect, the embodiment of the invention provides a dishwasher with aerial imaging function, which comprises: a box body; a panel mounted on the case; the main control system can control the waterway system to clean tableware in the box body; the optical display module assembly, the optical display module assembly sets up link to each other on the panel and with major control system, the optical display module assembly includes: the device comprises an imaging module, a detection module and a control module, wherein the imaging module is used for forming a floating real image in the air, the detection module is used for detecting the operation of a user on the floating real image and feeding back a detected interaction signal to the control module, and the control module generates a corresponding control signal according to the interaction signal and sends the control signal to a main control system.

In some embodiments, the imaging module includes an equivalent negative refractive index optical element and a display, the display is disposed on one side of the equivalent negative refractive index optical element, and after light emitted by the display passes through the equivalent negative refractive index optical element, a floating real image opposite to the display is formed on the other side of the equivalent negative refractive index optical element.

In some embodiments, the equivalent negative index optical element comprises: the optical waveguide array comprises a first optical waveguide array and a second optical waveguide array, wherein the first optical waveguide array and the second optical waveguide array are tightly attached to each other on the same plane and are arranged orthogonally.

In some embodiments, the first optical waveguide array or the second optical waveguide array is composed of a plurality of parallel-arranged reflecting units arranged obliquely at 45 °, the cross section of each reflecting unit is rectangular, and a reflecting film is disposed along the same side or two sides of the stacking direction of the reflecting units.

In some embodiments, the reflective element has a cross-sectional width and length a and b, respectively, and satisfies: a is more than or equal to 0.1mm and less than or equal to 5mm, and b is more than or equal to 0.1mm and less than or equal to 5 mm.

In some embodiments, the equivalent negative index optical element further comprises two transparent substrates, the first and second arrays of optical waveguides being disposed between the two transparent substrates.

In some embodiments, an adhesive is disposed between the first optical waveguide array and the second optical waveguide array, between the first optical waveguide array and the adjacent transparent substrate, and between the second optical waveguide array and the adjacent transparent substrate.

In some embodiments, the equivalent negative refractive index optical element further comprises an antireflection component and a viewing angle control component, the antireflection component and the viewing angle control component being disposed between the first optical waveguide array and the second optical waveguide array; or the anti-reflection component and the visual angle control component are arranged between the transparent substrate and the first optical waveguide array; or the antireflection member and the viewing angle control member are disposed between the transparent substrate and the second optical waveguide array.

In some embodiments, the optical display module further comprises: the total reflector is arranged on one side of the equivalent negative refractive index optical element and arranged on the same side of the display so as to reflect light rays emitted by the display to the equivalent negative refractive index optical element.

In some embodiments, the equivalent negative index optical element comprises: a retro-reflector and a beam splitter, the retro-reflector and the display being located on a same side of the beam splitter and the beam splitter reflecting light from the display to the retro-reflector, the beam splitter transmitting light from the retro-reflector.

In some embodiments, the heating system is further included, and the main control system determines whether to start the heating system according to a control signal sent by the control module.

In some embodiments, the waterway system includes a shunt valve, and the heating system is connected to or disconnected from the waterway through the shunt valve, and the heating system is configured to heat the washing water in the waterway system.

In some embodiments, the waterway system further comprises a driving pump and a water pipe, the water pipe is communicated with the driving pump and the shunt valve, and the driving pump can drive the washing water in the waterway system to flow.

In a second aspect, embodiments of the invention provide a method of operating a dishwasher having an aerial imaging functionality, comprising: providing an aerial floating real image; detecting interaction operation to obtain interaction information; and generating a control instruction according to the interactive information.

A third aspect embodiment of the present invention provides a storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the method of operating a dishwasher with aerial imaging functionality described in the above embodiments.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic structural diagram of a dishwasher having aerial imaging functionality according to an embodiment of a first aspect of the present invention;

FIG. 2 is another schematic structural view of a dishwasher having an aerial imaging function according to an embodiment of the first aspect of the present invention;

FIG. 3 is a block diagram of a control system of an optical display module according to an embodiment of a first aspect of the present invention;

FIG. 4 is a schematic structural diagram of an optical display module according to a first embodiment of the present invention;

FIG. 5 is a schematic diagram of a human-computer interaction structure of an optical display module according to a first embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a plate lens according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a first optical waveguide array and a second optical waveguide array according to an embodiment of the present invention;

fig. 8 is a schematic front view of a plate lens according to an embodiment of the present invention in the thickness direction;

FIG. 9 is a schematic diagram of a partial structure of a first optical waveguide array and a second optical waveguide array according to an embodiment of the present invention;

FIG. 10 is a schematic diagram of an optical path of a plate lens according to an embodiment of the present invention;

FIG. 11 is an internal optical path schematic of a plate lens according to an embodiment of the invention;

FIG. 12 is a schematic imaging diagram of a flat lens according to an embodiment of the invention;

FIG. 13 is a schematic view of an optical display module with additional total reflection mirrors according to a second embodiment of the present invention;

FIG. 14 is a schematic view of an optical display module according to a third embodiment of the invention.

FIG. 15 is a flow chart of a dishwasher method with aerial imaging functionality according to an embodiment of the second aspect of the present invention.

Reference numerals:

a dishwasher 1000, a cabinet 200, a main control system 300, a waterway system 400, a heating system 500,

door body 210, handle 211, panel 220, water inlet pipe 250, water outlet pipe 260,

a chamber 240, a shelf 241, a spray pipe 242, a water collection tank 243,

the shunt valve 410, the drive pump 420, the water pipe 430,

the optical display module 100 is provided with a plurality of optical elements,

an imaging module 20, a flat lens 1, a display 2, a detection module 3, a floating real image 4, a control module 5,

a first optical waveguide array 6, a second optical waveguide array 7, a transparent substrate 8,

a reflecting unit 9, a reflecting film 10, an adhesive 11,

total reflection mirror 12, virtual image 13, retro-reflector 14,

beam splitter

15, 1/4 waveplate 16.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.

In a first embodiment of the invention, a dishwasher 1000 with aerial imaging is provided. A dishwasher 1000 having an aerial imaging function according to a first embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1 to 3, a dishwasher 1000 having an aerial imaging function according to an embodiment of the present invention includes: the optical display module comprises a box body 200, a main control system 300 arranged in the box body 200, a water path system 400, a heating system 500 and the optical display module 100.

The cabinet 200 includes a door 210 disposed at a front end of the cabinet 200, a panel 220 mounted at a front end of the cabinet 200, and a cavity 240 formed in the cabinet 200. The cabinet 200 is internally provided with a cavity 240, kitchen utensils such as bowls and chopsticks can be placed in the cavity 240 or taken out of the cavity 240 by opening the door 210, the door 210 is rotatably mounted on the cabinet 200, the upper end of the door 210 is provided with a handle 211, and the handle 211 is used for opening or closing the door 210. The box body 200 is further provided with a water inlet pipe 250 and a water outlet pipe 260, and the water inlet pipe 250 and the water outlet pipe 260 are both connected with the waterway system 400. The washing water may enter the dishwasher 1000 through the water inlet pipe 250 and be discharged through the water outlet pipe 260.

Referring to fig. 2, a washing space is defined in the cavity 240, and a rack 241 is disposed in the washing space, wherein the rack 241 is used for placing dishes. The top and bottom of the cavity 240 are provided with spray pipes 242, the spray pipes 242 are provided with a spray inlet and a plurality of nozzles, the washing water enters the spray pipes 242 through the spray inlet, and then is sprayed to the tableware through the nozzles arranged on the spray pipes 242, so as to clean the tableware. The bottom of the chamber 240 is further provided with a water collecting groove 243, and the washing water sprayed to the dishes may be collected in the water collecting groove 243. The bottom of the water collecting tank 243 is provided with a washing outlet, and washing water can flow out from the washing outlet. Preferably, a filter screen is provided on the sump 243 to filter impurities in the washing water.

The waterway system 400 includes a diversion valve 410, a driving pump 420, and a water pipe 430 for connecting each device, the diversion valve 410 includes a plurality of interfaces, and the water inlet pipe 250 and the water outlet pipe 260 can be connected with different interfaces of the diversion valve 410. The washing water may enter the spray pipe 242 through one of the ports and the spray inlet of the shunt valve 410. The inlet of the driving pump 420 is connected to the washing outlet, the outlet of the driving pump 420 is connected to one of the ports of the shunt valve 410, and the driving pump 420 drives the washing water to flow in the waterway system 400. The washing water may be recycled in the water path system 400, and when the washing water needs to be replaced, the water inlet pipe 250 and the water outlet pipe 260 may be opened to replace the washing water.

The inlet and the outlet of the heating system 500 are connected to two ports of the water diversion valve 410, respectively, and the heating system 500 can heat the washing water. By controlling the shunt valve 410, it is possible to control whether the washing water is introduced into the heating system 500.

The optical display module 100 is disposed on the panel 220 and electrically connected to the host system 300. The optical display module 100 can form an image in the air to form a floating real image 4, and a user can click the floating real image 4 to complete the control of the air conditioner 1000. It is understood that the optical display module 100 also includes a driving circuit and an associated input/output interface for connecting the above systems, which are omitted from the drawings. It is understood that the optical display module 100 also includes a driving circuit and an input/output interface for connecting the above devices, which are omitted from the drawings.

The optical display module 100 includes an imaging module 20, a detection module 3 and a control module 5, wherein the imaging module 20 is configured to image and display a picture of the optical display module 100 in the air. The detection module 3 may detect the interaction operation of the user to generate interaction information, and transmit the interaction information to the control module 5. The control module 5 determines the specific operation content of the user according to the internal instruction set and the interaction information, generates a corresponding control signal, and sends the control signal to the main control system 300, and the main control system 300 can control the operation of the dishwasher according to the control signal. Meanwhile, the main control system 300 transmits the operation interface or the control result corresponding to the control signal to the optical display module 100, and displays an image in the air through the imaging module 20, so that the user can conveniently operate the next step or know the control result.

As shown in fig. 4 and 5, the imaging module 20 includes an equivalent negative refractive optical element and a display 2, in an embodiment, the equivalent negative refractive optical element may be a flat lens 1, the display 2 is disposed on one side of the flat lens 1, and after light emitted from the display 2 passes through the flat lens 1, a floating real image 4 opposite to the display 2 is formed on the other side of the flat lens 1. The position of the floating real image 4 in the air is adjusted by changing the positions of the display 2 and the flat lens 1. The detection module 3 is used for detecting the operation of the user on the floating real image 4 and feeding back the detected interactive signal to the control module 5. Specifically, the optical display module 100 can present the state information of the dishwasher and the information such as the operation buttons displayed by the display 2 on the floating real image 4, so that the user can know the current state of the dishwasher through the floating real image 4 and control the dishwasher 1000 by clicking the virtual buttons of the floating real image. Therefore, the difficulty of controlling the dish washer 1000 can be reduced, the risks of accidental electric shock and the like of a user are reduced, the safety is higher, meanwhile, the non-contact operation is cleaner and more sanitary, and the surface of the dish washer 1000 is prevented from being polluted due to the fact that the user touches the dish washer 1000.

When a user needs to wash dishes, the door body 210 is opened by the handle 211, the dishes are put in the rack 241 of the cavity 240, and then the door body 210 is closed. After the user clicks the operation button in the floating real image 4 in front of the panel 220, the detection module 3 detects the interactive operation of the user, and feeds back the interactive information to the control module 5, and the control module 5 determines the operation instruction of the user according to the internal instruction set and the interactive information. In one embodiment, the control module 5 determines the non-heating mode selected by the user and generates a corresponding control signal to be sent to the main control system 300. After the main control system 300 receives the control signal, the shunt valve 410 is controlled to be disconnected from the heating system 500, and the driving pump 420 is started. The washing water is introduced from the shunt valve 410 into the spray pipe 242 through the water pipe 430 and sprayed toward the dishes through the nozzles of the spray pipe 242 by the driving of the driving pump 420, thereby washing the dishes. In this mode, the heating system 500 may be turned off to save energy; of course, the heating system 500 may be turned on as needed, and the heating system 500 may be further utilized to heat other devices, spaces, etc., for example, the heating system may be turned on to dry the inner space of the cavity 240 or the dishes.

In another embodiment, the control module 5 determines that the user selects the heating mode, and generates a corresponding control signal to be transmitted to the main control system 300. After the main control system 300 receives the control signal, the shunt valve 410 is controlled to be communicated with the heating system 500, and the driving pump 420 is started. Under the driving of the driving pump 420, the washing water enters the heating system 500 from one of the ports of the shunt valve 410, and is heated by the heating system 500 into high-temperature washing water, and the high-temperature washing water flows out of the heating system 500, and sequentially enters the spray pipe 242 through the other port of the shunt valve 410, the water pipe 430 and the spray inlet, and is sprayed toward the dishes through the nozzles of the spray pipe 242, thereby washing the dishes. In this mode, the heating system 500 may be activated to heat the washing water, so that the dishwasher 1000 performs a high temperature washing mode to improve a washing effect.

Through the operation, the difficulty of controlling the dish washer 1000 can be reduced, the risks such as accidental electric shock of a user are reduced, the safety is higher, meanwhile, the non-contact operation is cleaner and more sanitary, and the surface of the dish washer 1000 is prevented from being polluted due to the fact that the user touches the dish washer 1000.

It is understood that the main control system 300 can complete other operation functions by the user clicking other interfaces or buttons of the floating real image 4, and is not limited to the function of selecting the heating mode.

The structure and imaging principle of the flat lens according to the present invention will be described with reference to fig. 6 to 12, which will be described in detail below.

As shown in fig. 6 to 7, the equivalent negative refractive index optical element may employ a flat lens 1, the flat lens 1 including two transparent substrates 8, and a first optical waveguide array 6 and a second optical waveguide array 7 interposed between the two transparent substrates 8. The first optical waveguide array 6 and the second optical waveguide array 7 are closely attached to each other on the same plane and are orthogonally arranged. Preferably, the first optical waveguide array 6 and the second optical waveguide array 7 are the same thickness, which facilitates design and production. Specifically, as shown in fig. 5, the flat lens includes a first transparent substrate 8, a first optical waveguide array 6, a second optical waveguide array 7, and a second transparent substrate 8 in this order from the display 2 side to the floating real image 4 side.

Wherein the first transparent substrate 8 and the second transparent substrate 8 each have two optical surfaces, and the transparent substrate 8 has a transmittance of 90% to 100% for light having a wavelength of 390nm to 760 nm. The material of the transparent substrate 8 may be at least one of glass, plastic, polymer, and acrylic for protecting the optical waveguide array and filtering out excessive light. Note that, if the strength after the first optical waveguide array 6 and the second optical waveguide array 7 are bonded to each other in an orthogonal manner is sufficient, or if the thickness of the mounting environment is limited, only one transparent substrate 8 may be disposed, or no transparent substrate 8 may be disposed.

As shown in fig. 7, the first optical waveguide array 6 and the second optical waveguide array 7 are composed of a plurality of reflection units 9 having a rectangular cross section, and the lengths of the reflection units 9 are limited by the peripheral dimensions of the optical waveguide arrays so as to be different in length. The extending direction of the reflecting unit 9 in the first optical waveguide array 6 is X, the extending direction of the reflecting unit 9 in the second optical waveguide array 7 is Y, and the Z direction is the thickness direction of the optical waveguide array. The extending directions (optical waveguide array directions) of the reflecting units 9 in the first optical waveguide array 6 and the second optical waveguide array 7 are perpendicular to each other, namely, the first optical waveguide array 6 and the second optical waveguide array 7 are orthogonally arranged when viewed from the Z direction (thickness direction), so that two light beams in the orthogonal directions are converged at one point, and the object image planes (the light source side and the imaging side) are ensured to be symmetrical relative to a flat lens, an equivalent negative refraction phenomenon is generated, and aerial imaging is realized.

As shown in fig. 8, the first optical waveguide array 6 or the second optical waveguide array 7 is composed of a plurality of parallel arranged reflection units 9 arranged obliquely with a 45 ° deflection from the user's angle of view. Specifically, the first optical waveguide array 6 may be composed of reflection units 9 arranged side by side at 45 ° in the lower left direction and having a rectangular cross section, the second optical waveguide array 7 may be composed of reflection units 9 arranged side by side at 45 ° in the lower right direction and having a rectangular cross section, and the arrangement directions of the reflection units 9 in the two optical waveguide arrays may be interchanged. For example, the extending direction of the reflection unit 9 in the first optical waveguide array 6 is Y, the extending direction of the reflection unit 9 in the second optical waveguide array 7 is X, the Z direction is the thickness direction of the optical waveguide array, and the first optical waveguide array 6 and the second optical waveguide array 7 are orthogonally arranged when viewed from the Z direction (thickness direction), so that two light beams in the orthogonal direction converge at one point, and the object image planes (light source side and image forming side) are ensured to be symmetrical with respect to the flat lens, thereby generating an equivalent negative refraction phenomenon and realizing aerial imaging. The optical waveguide material has an optical refractive index n1, in some embodiments, n1>1.4, for example, n1 is 1.5, 1.8, 2.0, and the like.

As shown in fig. 9, for the first optical waveguide array 6 and the second optical waveguide array 7, two interfaces exist between each reflection unit 9 and its adjacent reflection unit 9, and the interfaces are bonded by an adhesive 11 having a good light transmittance. Preferably, the adhesive 11 may be selected from a photosensitive adhesive or a thermosetting adhesive, and the thickness of the adhesive 13 is T1, and T1>0.001mm is satisfied, for example, T1 ═ 0.002mm or T1 ═ 0.003mm or T1 ═ 0.0015mm, and the specific thickness may be set according to specific needs. And adhesives 11 are respectively arranged between the adjacent optical waveguide arrays in the flat lens 1 and between the optical waveguide arrays and the transparent substrate 8, so that the firmness is improved.

In some embodiments, the reflection unit 9 may have a rectangular cross section, and the reflection film 10 is provided along one side or both sides of the arrangement direction of the reflection unit 9. Specifically, in the arrangement direction of the optical waveguide array, two sides of each reflection unit 9 are plated with a reflection film 10, and the material of the reflection film 10 may be a metal material such as aluminum, silver, or other non-metal compound material that realizes total reflection. The reflecting film 10 is used for preventing light rays from entering an adjacent optical waveguide array due to no total reflection to form stray light to influence imaging. Alternatively, each reflection element 9 may be formed by adding a dielectric film to the reflection film 10, and the dielectric film may improve the light reflectance.

The cross section width a and the cross section length b of the single reflection unit 9 satisfy 0.1mm ≤ a ≤ 5mm, 0.1mm ≤ b ≤ 5mm, and further satisfy 0.1mm ≤ a ≤ 2mm, and 0.1mm ≤ b ≤ 2mm for better imaging effect. For example, a is 0.2mm, b is 0.2 mm; or a is 0.5mm and b is 0.5 mm. When a large screen is displayed, the requirement of large size can be realized by splicing a plurality of optical waveguide arrays. The overall shape of the optical waveguide array is set according to the application scene, in this embodiment, the two groups of optical waveguide arrays are integrally rectangular, the two diagonal reflection units 9 are triangular, and the middle reflection unit 9 is a trapezoidal structure. The lengths of the single reflection units 9 are different, the reflection unit 9 positioned on the diagonal of the rectangle has the longest length, and the reflection units 9 at the two ends have the shortest length. In addition, the flat lens 1 may further include an anti-reflection component and a viewing angle control component, and the anti-reflection component may improve the overall transmittance of the flat lens and improve the definition and brightness of the floating real image 4. The visual angle control component can be used for eliminating the afterimage of the floating real image 4, reducing the vertigo of an observer, preventing the observer from peeping into the device from other angles, and improving the overall attractiveness of the device. The anti-reflection component and the viewing angle control component may be combined, or may be separately disposed between the transparent substrate 8 and the waveguide array, between two waveguide arrays, or on the outer layer of the transparent substrate 8.

The imaging principle of the flat lens is explained below with reference to fig. 10 to 12, and the details are as follows.

On the micrometer scale, a mutually orthogonal double-layer waveguide array structure is used for orthogonal decomposition of arbitrary optical signals. The original signal is projected on the first optical waveguide array 6, a rectangular coordinate system is established by taking the projection point of the original signal as the origin and taking the projection point of the original signal as the X axis perpendicular to the first optical waveguide array 6, and the original signal is decomposed into two paths of mutually orthogonal signals of a signal X positioned on the X axis and a signal Y positioned on the Y axis in the rectangular coordinate system. When the signal X passes through the first optical waveguide array 6, the signal X is totally reflected on the surface of the reflective film 10 at a reflection angle equal to the incident angle; at this time, the signal Y remains parallel to the first optical waveguide array 6, and after passing through the first optical waveguide array 6, the signal Y is totally reflected on the surface of the reflective film 10 at the same reflection angle as the incident angle on the surface of the second optical waveguide array 7, and the reflected optical signal composed of the reflected signal Y and the signal X is mirror-symmetric to the original optical signal. Therefore, the light rays in any direction can realize mirror symmetry through the flat lens 1, the divergent light of any light source can be converged into a floating real image again at a symmetrical position through the flat lens 1, the imaging distance of the floating real image is the same as the distance from the flat lens 1 to an image source, namely a display 2, the floating real image is imaged at equal distance, and the floating real image is positioned in the air without a specific carrier but directly presents the real image in the air. Therefore, the image in the space seen by the user is the image emitted from the display 2.

In the embodiment of the present invention, the light emitted from the light source of the display 2 passes through the flat lens 1, and the above process occurs on the flat lens 1. Specifically, as shown in fig. 10, the incident angles of the light rays on the first optical waveguide arrays 6 are α, respectively₁、α₂And alpha₃The reflection angle of the light on the first optical waveguide array 6 is beta₁、β₂And beta₃In which α is₁＝β₁，α₂＝β₂，α₃＝β₃After being reflected by the first optical waveguide array 6, the incident angles on the second optical waveguide array 7 are respectively gamma₁、γ₂And gamma₃The reflection angles at the second optical waveguide arrays 7 are respectively δ₁、δ₂And delta₃Wherein γ is₁＝δ₁，γ₂＝δ₂，γ₃＝δ₃。

Further, the incident angles after the convergent imaging are respectivelyα₁，α₂，α₃…α_nWhen the distance between the light source of the display 2 and the flat lens is L, the distance between the imaging position of the floating real image and the flat lens is also L, and the viewing angle ∈ of the floating real image is 2 times max (α).

It can be understood that if the size of the optical waveguide array is small, the image can be seen only at a certain distance from the imaging side of the optical waveguide array; if the size of the optical waveguide array is increased, a larger imaging distance can be realized, and thus the visual field rate is increased.

Preferably, the included angle between the flat lens 1 and the display 2 is set to be in the range of 45 ° ± 5 °, so that the size of the flat lens 1 can be effectively utilized, the imaging quality is improved, and the influence of afterimages is reduced. Furthermore, if there is another demand for the imaging position, another angle may be selected at the expense of the partial imaging quality, and the flat lens 1 is preferably sized to display the screen of the floating real image 4 presented by the entire display 2. However, if only a part of the display 2 needs to be seen in actual use, the size and position of the flat lens 1 can be freely adjusted according to the actual display, which is not limited in this respect.

In addition, the principle of imaging with the slab lens 1 adopting the double-layer optical waveguide array structure is mainly described above, but in other embodiments, if the plurality of cubic columnar reflection units 9 with the reflection films 12 are provided on all four peripheral surfaces, and the plurality of cubic columnar reflection units 9 are arranged in an array in the X and Y directions in the one-layer optical waveguide array structure, that is, the two layers of optical waveguide arrays are combined into one layer, the imaging principle of the slab lens 1 may also be the same as that of the double-layer optical waveguide array structure.

In the embodiment, the thicknesses of the first optical waveguide array 6 and the second optical waveguide array 7 are the same, so that the complexity of the structures of the first optical waveguide array 6 and the second optical waveguide array 7 can be simplified, the manufacturing difficulty of the first optical waveguide array 6 and the second optical waveguide array 7 can be reduced, the production efficiency of the first optical waveguide array 6 and the second optical waveguide array 7 can be improved, and the production cost of the first optical waveguide array 6 and the second optical waveguide array 7 can be reduced. It should be noted that the thickness is the same in a relative range, and is not absolutely the same, that is, for the purpose of improving the production efficiency, a certain thickness difference may exist between the optical waveguide arrays without affecting the aerial imaging quality.

According to some embodiments of the present invention, the imaging mode of the Display 2 may include RGB (red, green, blue) Light Emitting Diodes (LEDs), LCD (Liquid Crystal Display), LCOS (Liquid Crystal on Silicon) devices, OLED (Organic Light-Emitting Diode) arrays, projection, laser Diode, or any other suitable Display or stereoscopic Display, without limitation.

In an embodiment, the luminance of the display 2 may be set to not less than 500cd/m²Thereby reducing the effect of brightness loss in the optical path propagation. Of course, in practical applications, the display brightness of the display 2 may be adjusted according to the brightness of the ambient light.

In addition, according to some embodiments of the present invention, the visible angle control processing is performed on the display image surface of the display 2, so that the ghost of the floating real image 4 can be reduced, the image quality can be improved, and the peeping of others can be prevented, thereby being widely applied to other input devices requiring privacy information protection.

According to some embodiments of the present invention, the detection module 3 may be a far-near infrared sensor, an ultrasonic sensor, a laser interference sensor, a grating sensor, an encoder, a fiber optic sensor, or a CCD sensor. That is, the sensing form of the detection module 3 includes, but is not limited to, far and near infrared, ultrasonic, laser interference, grating, encoder, fiber optic type or CCD (charge coupled device), etc. The sensing area of the detection module 3 and the floating real image 4 are located on the same plane and comprise a three-dimensional space where the floating real image is located, an optimal sensing form can be selected according to an installation space, a viewing angle and a use environment, a user can conveniently operate the floating real image 4 in an optimal posture, and the sensitivity and the convenience of user operation are improved.

According to some embodiments of the present invention, the control module 5, the imaging module 20, and the detection module 3 may be connected in a wired or wireless manner to transmit digital or analog signals, so as to flexibly control the volume of the optical display module 100 and enhance the electrical stability of the optical display module 100.

Description of the invention a dishwasher 1000 having an aerial imaging function according to a second embodiment of the present invention is described below with reference to fig. 13. The remaining configuration is the same as that of the first embodiment except for the difference in the structure of the optical display module 100, and thus, the repeated description of the same configuration with the same reference numerals will be omitted.

The structure of the optical display module 100 is characterized in that a total reflection mirror 12 is added on the side of the flat lens 1 where the display 2 is located. Light emitted by the display 2 is reflected by the total reflection mirror 12, enters the flat lens 1, and finally converges on the other side of the flat lens 1, so that a floating real image 4 is formed. The function and structure of the detection module 3 and the control module 5 are the same as those of the first embodiment.

It can be seen that, in this embodiment, after the light of the display 2 is reflected by the total reflection mirror 12, a virtual image 13 that is as large as the display 2 and is plane-symmetric with respect to the total reflection mirror 12 is equivalently formed on the other side of the total reflection mirror 12, and the floating real image 4 is actually mirror-symmetric with respect to the flat lens 1 with the virtual image 13. Preferably, the included angle between the flat lens 1 and the virtual image 13 is set to be in the range of 45 ° ± 5 °, so that the size of the flat lens 1 can be more fully utilized, and simultaneously, better imaging quality and smaller afterimage influence are obtained. But other angles may be chosen at the expense of partial imaging quality if there are other requirements on the imaging position. It is also preferable that the size of the flat lens 1 and the total reflection mirror 12 is set so that the user can see the picture of the aerial image 4 presented by the entire display 2 at a glance, but if it is necessary to see only a part of the content of the display 2 in actual use, the size and position of the flat lens 1 can be freely adjusted according to the actual display picture.

The effect of this embodiment is that the orientation of the display screen in the display 2 can be changed, and the display 2 can be disposed closer to the flat lens 1, and under the condition that the distance between the floating real image 4 and the flat lens 1 is not changed, the overall thickness of the optical display module 100 is significantly reduced, so as to be better integrated into the dishwasher 1000 with aerial imaging function.

It is understood that a plurality of total reflection mirrors 12 (not shown) may be disposed in the optical display module 100, and the light of the display 2 is reflected therein for a plurality of times to form a virtual image farther away from the flat lens 1, so as to further reduce the thickness of the optical display module 100.

A dishwasher 1000 having an aerial imaging function according to a third embodiment of the present invention will be described with reference to fig. 14. The remaining configuration is the same as that of the first embodiment except for the difference in the structure of the optical display module 100, and thus, the repeated description of the same configuration with the same reference numerals will be omitted.

The optical display module 100 is characterized in that a retro-reflector 14 is used to replace the flat lens 1, and a beam splitter 15 is added to reconverge the light from the display 2 in the air to present a floating real image 4.

Specifically, the imaging principle of the present embodiment is as follows:

light emitted from the display 2 is first reflected by the beam splitter 15 to the surface of the retro-reflector 14, and the beam splitter 15 is a beam splitter that is semi-transparent to visible light, i.e., has characteristics of 50% transmittance and 50% reflectance with respect to visible light. When this portion of the light is incident on the surface of the retro-reflector 14, it is reflected again by the microstructures inside the retro-reflector 14 and the reflected light is returned from a direction opposite to that of the incident light, at which time the reflected light is transmitted through the beam splitter 15, thereby forming a floating real image 4 in the air in a position where the display 2 is plane-symmetric with respect to the beam splitter 15.

The beam splitter 15 is used to split a light beam into two light beams, one light beam is transmitted and the other light beam is reflected, and is made of a metal film or a dielectric film, and the ratio of reflection to transmission is about 1:1 in the embodiment, which can be classified into a polarized type and a non-polarized type in principle.

The retro-reflector 14 has a retro-reflection effect on its surface, which reflects incident light from a direction close to the opposite direction of its incident direction, and is covered with micro glass beads or micro prism structures, which refracts and reflects incident light through internal microstructures, so that light exits in the opposite direction of the incident direction. Since the structure of the retro-reflector 14 is relatively conventional, it will not be described herein in more detail.

Furthermore, according to some embodiments of the present invention, 1/4 wave plate 16 may be disposed on the surface of the retro-reflector 14, if the light emitted from the display 2 is linearly polarized, reflected by the polarizing beam splitter 15, then enters the retro-reflector 14 through 1/4 wave plate 16, and the reflected light returns from the opposite direction to the incident light and passes through 1/4 wave plate 16 again, at which time the polarization plane of the linearly polarized light emitted from the display 2 is rotated by 90 degrees, so that it can be emitted from the polarizing beam splitter 15 and converged into a floating image 4 in the air. The method can greatly improve the energy utilization rate of the light of the display 2 and reduce the light intensity loss, thereby improving the brightness of the floating real image 4. It will be appreciated that if the display 2 is sufficiently bright, or if the light emitted by the display 2 is not linearly polarized, a non-polarizing beam splitter 15 may be used without 1/4 wave plate 16.

In a second aspect embodiment of the present invention, there is provided a method of operating a dishwasher having an aerial imaging function, as shown in fig. 15, the method of the embodiment of the present invention includes at least steps S1-S3.

And step S1, providing the floating real image in the air.

In order to solve the problems of inconvenient operation and hidden health hazards in the touch operation of the existing dish washing machine, the embodiment of the invention adopts an interactive aerial imaging technology, and a floating real image is formed at a position determined in the air by an aerial imaging module. Specifically, the display of the aerial imaging module displays screen information, which may include status information, operating buttons, and the like. The flat lens forms a floating real image in the air after passing the picture information displayed by the display through the flat lens, and the floating real image 4 can present the picture of the display. It is understood that the imaging position of the floating real image 4 in the air can be changed by adjusting the position of the display and the flat lens.

And step S2, detecting the interactive operation and obtaining the interactive information.

In the embodiment of the invention, the position of the floating real image 4 generated by adopting the interactive aerial imaging technology is relatively fixed in the air, a user can directly click the picture information in the floating real image for operation, the detection module can detect the interactive operation of clicking the floating real image and the like by the user, so as to obtain the interactive information, and the interactive information is sent to the control module.

In step S3, a control command is generated based on the mutual information.

In the embodiment, the control module processes and analyzes the acquired interactive information in combination with the internal instruction set, determines the specific operation content of the user, generates a corresponding control signal, and sends the corresponding control signal to the main control system of the dishwasher, and the main control system can control the dishwasher to operate according to different control signals so as to fulfill the operation purpose of the user.

In one embodiment, the control module sends a corresponding control signal to the main control system when judging that the user selects the heating mode, and the main control system controls the shunt valve to be communicated with the heating system and starts the driving pump to control the operation of the dishwasher after receiving the control signal.

According to the dishwasher method with the aerial imaging function, the display picture is formed into the floating real image at the determined position in the air through the interactive aerial imaging technology, a user can operate according to picture information in the floating real image, when the user operation information is detected, the detection module detects the interactive operation, so that the interactive information of the user is obtained, the control module combines an internal instruction set to process and analyze the obtained interactive information, the specific operation content of the user is judged, a corresponding control signal is generated, the control signal is sent to the main control system of the dishwasher, and the main control system can control the dishwasher to operate according to the control signal, so that the operation purpose of the user is completed. The method can make the operation mode of the user more convenient and visual, and avoids the user from contacting the dishwasher body during operation, thereby reducing the risks of accidental electric shock and the like of the user, having higher safety, simultaneously having cleaner and more sanitary non-contact operation, and avoiding the pollution to the surface of the dishwasher caused by the user touching the dishwasher.

A third embodiment of the present invention provides a storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, implements the biometric acquisition and identification method of the above embodiments.

In the description of this specification, any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of custom logic functions or processes, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.

The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.

It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.

In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A dishwasher having an aerial imaging function, comprising:

a box body;

a panel mounted on the case;

the main control system can control the waterway system to clean tableware in the box body;

the optical display module assembly, the optical display module assembly sets up link to each other on the panel and with major control system, the optical display module assembly includes: the device comprises an imaging module, a detection module and a control module, wherein the imaging module is used for forming a floating real image in the air, the detection module is used for detecting the operation of a user on the floating real image and feeding back a detected interaction signal to the control module, and the control module generates a corresponding control signal according to the interaction signal and sends the control signal to a main control system.

2. The dishwasher with aerial imaging function according to claim 1, characterized in that: the imaging module comprises an equivalent negative refractive index optical element and a display, the display is arranged on one side of the equivalent negative refractive index optical element, and after light rays emitted by the display pass through the equivalent negative refractive index optical element, a floating real image opposite to the display is formed on the other side of the equivalent negative refractive index optical element.

3. The dishwasher with aerial imaging functionality according to claim 2, wherein the equivalent negative index optical element comprises: the optical waveguide array comprises a first optical waveguide array and a second optical waveguide array, wherein the first optical waveguide array and the second optical waveguide array are tightly attached to each other on the same plane and are arranged orthogonally.

4. The dishwasher having an aerial imaging function according to claim 3, wherein the first optical waveguide array or the second optical waveguide array is composed of a plurality of reflecting units arranged in parallel and obliquely at an angle of 45 °, the reflecting units are rectangular in cross section, and reflecting films are provided along the same side or both sides in the stacking direction of the reflecting units.

5. The dishwasher having an aerial imaging function according to claim 4, wherein the reflecting unit has cross-sectional widths a and b, and satisfies: a is more than or equal to 0.1mm and less than or equal to 5mm, and b is more than or equal to 0.1mm and less than or equal to 5 mm.

6. The dishwasher having an aerial imaging function of claim 3, wherein the equivalent negative refractive index optical element further comprises two transparent substrates, the first and second optical waveguide arrays being disposed between the two transparent substrates.

7. The dishwasher with aerial imaging functionality according to claim 6, wherein an adhesive is disposed between the first array of light waveguides and the second array of light waveguides, between the first array of light waveguides and the adjacent transparent substrate, and between the second array of light waveguides and the adjacent transparent substrate.

8. The dishwasher having an aerial imaging function according to claim 6, wherein the equivalent negative refractive index optical element further comprises an antireflection member and a viewing angle control member, the antireflection member and the viewing angle control member being disposed between the first optical waveguide array and the second optical waveguide array; or

The anti-reflection component and the visual angle control component are arranged between the transparent substrate and the first optical waveguide array; or

The antireflection member and the viewing angle control member are disposed between the transparent substrate and the second optical waveguide array.

9. The dishwasher with aerial imaging function according to claim 2, wherein the optical display module further comprises: the total reflector is arranged on one side of the equivalent negative refractive index optical element and arranged on the same side of the display so as to reflect light rays emitted by the display to the equivalent negative refractive index optical element.

10. The dishwasher with aerial imaging functionality according to claim 2, wherein the equivalent negative index optical element comprises: a retro-reflector and a beam splitter, the retro-reflector and the display being located on a same side of the beam splitter and the beam splitter reflecting light from the display to the retro-reflector, the beam splitter transmitting light from the retro-reflector.

11. The dishwasher with aerial imaging function according to claim 1, further comprising a heating system, wherein the main control system determines whether to turn on the heating system according to a control signal sent by the control module.

12. The aerial imaging function dishwasher of claim 11, wherein the water path system comprises a shunt valve, the heating system being in communication with or disconnected from the water path through the shunt valve, the heating system being configured to heat wash water in the water path system.

13. The dishwasher with aerial imaging function of claim 12, wherein the waterway system further comprises a drive pump and a water pipe, the water pipe is communicated with the drive pump and the shunt valve, and the drive pump can drive the washing water in the waterway system to flow.

14. A method of operating a dishwasher having an aerial imaging function, comprising:

providing an aerial floating real image;

detecting interaction operation to obtain interaction information;

and generating a control instruction according to the interactive information.

15. A storage medium having stored thereon a computer program, characterized in that the computer program, when being executed by a processor, carries out the method of claim 14 of operating a dishwasher with aerial imaging functionality.