WO2021169651A1

WO2021169651A1 - Elevator and external control box

Info

Publication number: WO2021169651A1
Application number: PCT/CN2021/071848
Authority: WO
Inventors: 范超; 韩东成
Original assignee: 安徽省东超科技有限公司
Priority date: 2020-02-28
Filing date: 2021-01-14
Publication date: 2021-09-02

Abstract

An elevator (S) and an eternal control box. The elevator comprises: a car (200), a door (300), and an air imaging device (1). The car (200) is provided with an opening. The door (300) is openably and closably disposed at the opening of the car (200). The air imaging device (1) is disposed in the car (200) and spaced apart from the door (300). The air imaging device (1) comprises a display screen (70) and an optical element (30) having a negative refractive index. The display screen (70) is disposed on a light source side (35) of the optical element (30) having a negative refractive index. Providing the air imaging device creatively can allow for images to be displayed in the air, thereby preventing users from leaving bacteria on the display screen or buttons, and further avoiding cross infection of bacteria among the users.

Description

Elevator and external control box

Cross-references to related applications

This application requires the priority of the Chinese patent application number "202020233940.6" filed on February 28, 2020 by the applicant named "Elevator".

This application requires priority of the Chinese patent application number "202020233976.4" filed on February 28, 2020 by the applicant named "Elevator".

This application requires the priority of the Chinese patent application number "202020233936.X" filed on February 28, 2020 by the applicant named "Elevator".

This application requires the priority of the Chinese patent application number "202020233963.7" filed on February 28, 2020, entitled "External Control Box of Elevator".

This application requires priority of the Chinese patent application number "202010130559.1" filed on February 28, 2020, entitled "Air imaging device and elevator and external control box".

This application requires priority of the Chinese patent application number "202020233954.8" filed on February 28, 2020, entitled "Air imaging device and elevator and external control box".

Technical field

The present disclosure relates to the technical field of elevators, in particular to an elevator and an external control box.

Background technique

With the advancement of science and technology and the improvement of living standards, elevators are approaching thousands of households. The elevators are equipped with advertising display screens and buttons, and the buttons need to be operated by touch. However, as the number of uses increases, more bacteria accumulate on the keys, which is prone to cross-infection, and the screen is easy to get dirty, which is not conducive to continuous use.

Summary of the invention

The present disclosure aims to solve at least one of the technical problems existing in the prior art.

An elevator according to an embodiment of the first aspect of the present disclosure includes: a box body provided with an opening; a door body, wherein the door body is opened and closed at the opening of the box body; an air imaging device, so The air imaging device is arranged in the box and spaced apart from the door. The air imaging device includes a display screen and a negative refractive index optical element, and the display screen is arranged on the light source of the negative refractive index optical element side.

According to the elevator of the embodiment of the present disclosure, by creatively setting the air imaging device, the image can be displayed in the air, which can prevent users from leaving bacteria on the display screen or buttons, and can further avoid the phenomenon of cross-infection of bacteria among users. .

According to some embodiments of the present disclosure, the box body includes: a front plate, a rear plate, and two side plates. The two side plates are connected between the front plate and the rear plate and are spaced left and right. The opening is formed at the front plate, and the air imaging device is arranged on the front plate or one of the side plates of the box.

According to some embodiments of the present disclosure, an installation groove is formed on the front plate or the side plate, and the air imaging device is disposed in the installation groove.

According to some embodiments of the present disclosure, the mounting groove is formed on the front plate, the display screen is arranged perpendicular to the side plate, and the negative refractive index optical element is opposite to the surface of the front plate and the side plate. The surface of the board is set obliquely.

According to some embodiments of the present disclosure, the box body includes: a front plate, a rear plate, and two side plates. The two side plates are connected between the front plate and the rear plate and are spaced left and right. The opening is formed at the front plate, and the air imaging device is arranged at the connection between the front plate and one of the side plates.

According to some embodiments of the present disclosure, the display screen is arranged parallel to the surface of the side plate or the front plate, and the negative refractive index optical element is arranged obliquely with respect to the surface of the front plate and the surface of the side plate .

According to some embodiments of the present disclosure, the air imaging device further includes: a housing, the display screen and the negative refractive index optical element are both disposed in the housing; a mounting groove is formed in the housing, the The installation groove and the opening are arranged at intervals, the housing is arranged in the installation groove, the housing is provided with a display window, and the display window is arranged on the imaging side of the negative refractive index optical element, or the The negative refractive index optical element is arranged at the display window.

According to some embodiments of the present disclosure, the air imaging device further includes a touch receiver and a controller, and both the touch receiver and the display screen are electrically connected to the controller.

According to some embodiments of the present disclosure, the display screen includes: a first display screen and a second display screen, the first display screen and the second display screen are spaced apart with a placement space therebetween; the negative refraction The optical element includes: a first negative refractive index optical element and a second negative refractive optical element, the first negative refractive optical element and the second negative refractive optical element are arranged in the placement space, the The first display screen is arranged on the light source side of the first negative refractive index optical element, and the second display screen is arranged on the light source side of the second negative refractive index optical element.

According to some embodiments of the present disclosure, the first display screen and the second display screen are arranged in parallel.

According to some embodiments of the present disclosure, the angle between the first display screen and the first negative refractive index optical element is a, and the angle between the second display screen and the second negative refractive index optical element The included angle is b, where a=b.

According to some embodiments of the present disclosure, the negative refractive index optical element includes: two transparent substrates and an optical waveguide array, the optical waveguide array includes a plurality of optical waveguides, and the plurality of optical waveguides are arranged in an array, The optical waveguide array is arranged between the two transparent substrates.

According to some embodiments of the present disclosure, the optical waveguide array is composed of two groups and each is composed of a single row and multiple rows of optical waveguides arranged obliquely at 45° and a rectangular cross-section. The waveguide directions are perpendicular to each other; or, the optical waveguide array is a group and includes multiple rows and multiple rows of rectangular optical waveguides arranged obliquely at 45°.

An external control box according to an embodiment of the second aspect of the disclosure, comprising: a housing formed with a display window and an accommodating cavity formed inside; a display screen, the display screen being arranged in the accommodating cavity; a negative refractive index Optical element, the negative refractive index optical element is arranged in the containing cavity, the display screen is arranged on the light source side of the negative refractive index optical element, and the display window is arranged on the imaging side of the negative refractive index optical element .

According to some embodiments of the present disclosure, the negative refractive index optical element is arranged on the rear side of the display window, and the display screen is attached to the side wall of the housing.

According to some embodiments of the present disclosure, the light source side area of the negative refractive index optical element is greater than or equal to the display surface area of the display screen; and/or the imaging side area of the negative refractive index optical element is greater than or equal to the display window area .

According to some embodiments of the present disclosure, the external control box further includes: a touch receiver and a controller, the touch receiver is disposed at the display window, and the touch receiver and the display screen are both It is electrically connected to the controller.

According to some embodiments of the present disclosure, the optical waveguide array is composed of two groups and each is composed of a single row and multiple rows of optical waveguides arranged obliquely at 45° and a rectangular cross-section. The waveguide directions are perpendicular to each other; or the optical waveguide array is a group and includes multiple rows and rows of rectangular optical waveguides arranged obliquely at 45°.

The additional aspects and advantages of the present disclosure will be partially given in the following description, and some will become obvious from the following description, or be understood through the practice of the present disclosure.

Description of the drawings

The above and/or additional aspects and advantages of the present disclosure will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

Figure 1 is a schematic structural diagram of an elevator according to an embodiment of the present disclosure;

2 is a schematic diagram of the installation of an air imaging device according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of an air imaging device according to an embodiment of the present disclosure;

Figure 4 is a schematic structural diagram of an elevator according to another embodiment of the present disclosure;

5 is a schematic structural diagram of an air imaging device according to another embodiment of the present disclosure;

Fig. 6 is a schematic diagram of the connection of the controller, the display screen and the touch receiving device;

FIG. 7 is a schematic diagram of an air imaging device according to still another embodiment of the present disclosure;

FIG. 8 is a schematic diagram of the connection of the controller, the first display screen, the second display screen and the touch receiver;

Fig. 9 is a schematic diagram of a negative refractive index optical element according to an embodiment of the present disclosure;

10 is a schematic diagram of the optical waveguide array on the negative refractive index side shown in FIG. 9;

FIG. 11 is a schematic diagram of a negative refractive index optical element according to another embodiment of the present disclosure;

FIG. 12 is a schematic diagram of the optical waveguide array of the negative refractive index optical element shown in FIG. 11;

Figure 13 is a schematic diagram of an external control box of an elevator according to an embodiment of the present disclosure;

Figure 14 is a schematic diagram of the external control box display window of the elevator;

Figure 15 is a schematic diagram of the connection of the controller, the display screen and the touch receiving device of the external control box of the elevator;

Fig. 16 is a schematic diagram of a negative refractive index optical element according to an embodiment of the present disclosure;

FIG. 17 is a schematic diagram of the optical waveguide array on the negative refractive index side shown in FIG. 16;

18 is a schematic diagram of a negative refractive index optical element according to another embodiment of the present disclosure;

Fig. 19 is a schematic diagram of the optical waveguide array of the negative refractive index optical element shown in Fig. 18.

Reference signs of Figures 1 to 12:

Elevator S;

Air imaging device 1;

The first display screen 10; the second display screen 20; the negative refractive index optical element 30;

Transparent substrate 31; optical waveguide array 32; optical waveguide 321;

First negative refractive index optical element 33; second negative refractive index optical element 34;

Light source side 35; imaging side 36; housing 40; display window 41; touch receiver 50; controller 60; display screen 70; display surface 71; box 200; front plate 210; mounting groove 211; rear plate 220; Side panel 230; door body 300;

Reference numerals of Figure 13-19:

External control box 80;

Housing 401; display screen 701; display surface 711; negative refractive index optical element 301; transparent substrate 311; optical waveguide array 321; optical waveguide 3211; light source side 351; imaging side 361; display window 411; touch receiver 501; Display screen 701; accommodating cavity 901.

Detailed ways

The embodiments of the present disclosure are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary, and the embodiments of the present disclosure are described in detail below.

The following describes an elevator S according to an embodiment of the present disclosure with reference to Figs. 1-19. The present disclosure further proposes an external control box 80.

As shown in Figure 1, the elevator S includes: a box body 200, a door body 300 and an air imaging device 1. The box body 200 is provided with an opening, and the door body 300 is opened and closed at the opening of the box body 200. The closing of 300 closes or opens the box 200, so that it is convenient for passengers to get on and off the elevator S.

As shown in FIGS. 1 to 3, the air imaging device 1 is arranged in the box 200, and the air imaging device 1 is spaced apart from the door 300. The air imaging device 1 includes: a display screen 70 and a negative refractive index optical element 30, displaying The screen 70 is provided on the light source side 35 of the negative refractive index optical element 30.

By installing the air imaging device 1 on the box 200 of the elevator S, the elevator S can display the display information in the air through the air imaging device 1, so that the air imaging device 1 can replace the buttons or advertising display screens on the elevator S, so that It prevents users from leaving bacteria on the advertising display screens or buttons, thereby avoiding cross-infection of bacteria among users. It can also solve the problem of dust and manipulation traces remaining on the advertising display screen and keys, and can improve the cleanliness and display clarity of the advertising display screen.

Specifically, after entering the elevator S, the user can operate the air imaging device 1, for example: select a floor or read an advertisement, and because the display information is displayed in the air, the user will not leave bacteria in the air imaging device 1, thereby The safety of the elevator S can be improved.

Therefore, according to the elevator S of the embodiment of the present disclosure, by creatively setting the air imaging device 1, the image can be displayed in the air, the user can be prevented from leaving bacteria on the display screen 70 or the keys, and the user can be further avoided The phenomenon of bacterial cross-infection occurs.

As shown in FIG. 5, the air imaging device 1 includes: a housing 40, a display screen 70 and a negative refractive index optical element 30 are both arranged in the housing 40. In addition, a mounting groove 211 is formed in the box 200, the mounting groove 211 and the opening are spaced apart, and the housing 40 is disposed in the mounting groove 211. The housing 40 is provided with a display window 41, the display window 41 is arranged at the imaging side 36 of the negative refractive index optical element 30, or the negative refractive index optical element 30 is arranged at the display window 41. The display window 41 may be arranged on the front side of the housing 40, and no display part is arranged at the display window 41, so that the image can be conveniently displayed. That is, the user can operate or view the display image on the display window 41.

According to an optional embodiment of the present disclosure, as shown in FIGS. 3 to 5, the box 200 includes: a front plate 210, a rear plate 220, and two side plates 230. The two side plates 230 are connected to the front plate 210 and The rear plates 220 are arranged at intervals on the left and right, the opening is formed at the front plate 210, and the air imaging device 1 is installed on the front plate 210 or the side plate 230. By installing the air imaging device 1 in the front panel 210 or the side panel 230, the user can conveniently operate after entering the elevator S, and improve the user's experience.

In addition, a mounting groove 211 is formed on the front plate 210 or the side plate 230, and the air imaging device 1 is disposed in the mounting groove 211. With this arrangement, the safety of the air imaging device 1 can be improved, and the air imaging device 1 can be prevented from occupying the internal space of the elevator S, which affects the normal use space of the elevator S.

As shown in FIGS. 3 and 4, the mounting groove 211 is formed on the front plate 210, and the display screen 70 is perpendicular to the inner surface of the front plate 210. The negative refractive index optical element 30 is opposite to the surface of the front plate 210 and the side plate 230. The surface is tilted. By setting the display screen 70 perpendicular to the surface of the front plate 210, the angle between the negative refractive index optical element 30 and the surface of the front plate 210 is set to 45°, so that the display screen 70 can be projected by the negative refractive index optical element 30. The image is parallel to the surface of the front plate 210, which is convenient for the user to manipulate the air imaging device 1. In addition, in combination with the arrangement of the negative refractive index optical element 30, the arrangement of the display screen 70 in the housing 40 can be facilitated, the arrangement difficulty of the display screen 70 can be reduced, and the projected image can be facilitated on the surface and sides of the front plate 210. The surface of the plate 230 is imaged.

According to another optional embodiment of the present disclosure, as shown in FIGS. 1 and 2, the box 200 includes: a front plate 210, a rear plate 220, and two side plates 230, and the two side plates 230 are connected to the front plate 210 The air imaging device 1 is arranged at the junction of the front board 210 and one of the side boards 230, that is, the air imaging device 1 is arranged on the front board 210 and The corner between one of the side panels 230. By arranging the air imaging device 1 at the connection between the front panel 210 and one of the side panels 230, the user can directly look at the display image of the air imaging device 1 after entering the elevator S, thereby improving the user experience of the user.

Specifically, the display screen 70 is arranged in parallel with the surface of the side plate 230 or the front plate 210, and the negative refractive index optical element 30 is arranged obliquely with respect to the surface of the front plate 210 and the surface of the side plate 230. The negative refractive index optical element 30 and the display screen 70 arranged in this way facilitate the arrangement of components in the housing 40, avoid interference between the display screen 70 and the negative refractive index optical element 30 in the housing 40, and facilitate the display of images in the front. The surface of the board 210 and the surface of the side board 230 are imaged for easy viewing by the user. The angle between the negative refractive index optical element 30 and the horizontal plane may be 45°.

As shown in FIGS. 7 and 8, according to another embodiment of the present disclosure, the display screen 70 includes: a first display screen 10 and a second display screen 20, and the negative refractive index optical element 30 includes: a first negative refractive index optical element 33 and the second negative refractive index optical element 34. The first display screen 10 and the second display screen 20 are arranged at intervals with a placement space formed therebetween, the first negative refractive index optical element 33 and the second negative refractive index optical element 34 are arranged in the placement space, and the first display screen 10 is arranged in the placement space. The light source side 35 of the first negative refractive index optical element 33, and the second display screen 20 is disposed on the light source side 35 of the second negative refractive index optical element 34. That is, the first image displayed on the first display screen 10 can be displayed in the air by the first negative refractive index optical element 33, and the second image displayed on the second display screen 20 can be displayed in the air by the second negative refractive index optical element 34. show. Among them, the first image and the second image may be two parts of a complete image, or may be two independently displayed images. In this way, the thickness of the air imaging device 1 can be reduced, thereby saving space. Wherein, when the first image and the second image are two parts of a complete image, they can be located in the same plane and stitched together to display the complete image. Of course, the first image and the second image can also be located in different planes, which can be achieved by changing the position of the corresponding display screen 70 or the negative refractive index optical element 30.

Thus, according to the air imaging device 1 of the embodiment of the present disclosure, by setting the first display screen 10, the second display screen 20, the first negative refractive index optical element 33 and the second negative refractive index optical element 34, and adjusting them The position of the first display screen 10 through the first negative refractive index optical element 33 to display the first image in the air, and the second display screen 20 through the second negative refractive index optical element 34 to display the second image in the air, so that Reduce the thickness of the device, which can save space.

According to an optional embodiment of the present disclosure, as shown in FIG. 7, the first display screen 10 and the second display screen 20 are arranged in parallel. When the first image and the second image are two parts of a complete image, this setting can make the first image and the second image form a complete image, and also make the formed image clearer.

Specifically, as shown in FIG. 7, the angle between the first display screen 10 and the first negative refractive index optical element 33 is a, and the angle between the second display screen 20 and the second negative refractive index optical element 34 is The angle is b, where a=b. This setting enables the first image and the second image to be better formed on a plane after refraction, so as to display a complete image and also make the displayed image clearer. Moreover, the first display screen 10, the second display screen 20, the first negative refractive index optical element 33, and the second negative refractive index optical element 34 arranged in this way are arranged conveniently, and the overall reliability is higher.

The arrangement of the negative refractive index optical element 30 will be described below.

As shown in FIGS. 9 and 11, the negative refractive index optical element 30 includes two transparent substrates 31 and an optical waveguide array 32. The optical waveguide array 32 includes a plurality of optical waveguides 321, and the plurality of optical waveguides 321 are arranged in an array. , The optical waveguide array 32 is arranged between the two transparent substrates 31. The two transparent substrates 31 are mainly used to protect the optical waveguide array 32. The optical waveguide array 32 can cause the light emitted by the display screen 70 to undergo one or more refractions within it, and finally display at the display window 41, using the optical waveguide array 32 The method can effectively remove stray light, making the displayed image real and high-definition. Among them, the transparent substrate 31 may be a glass plate.

Alternatively, as shown in FIG. 11 and FIG. 12, the optical waveguide array 32 may be two groups, and the two sets of optical waveguide arrays 32 are arranged in a single row and multiple rows obliquely at 45°, and the cross section is a rectangular optical waveguide. 321 composition. The two sets of optical waveguide arrays 32 arranged in this way can reduce the difficulty of manufacturing the optical waveguide 321, and can make the displayed image real and high-definition.

Alternatively, as shown in FIG. 9 and FIG. 10, the optical waveguide array 32 may be a set, and the set of optical waveguide array 32 includes multiple rows and multiple columns, and rectangular optical waveguides 321 arranged obliquely at 45° . The set of optical waveguide array 32 thus arranged has a simple structure, and can make the displayed image real and high in definition.

Specifically, as shown in FIG. 6, the air imaging device 1 further includes: a touch receiver 50 and a controller 60. The touch receiver 50 is disposed at the display window 41. The touch receiver 50 and the display screen 70 are both connected to the control器60 is electrically connected. The touch receiver 50 is used to receive the user's touch operation at the display window 41. After receiving the user's touch operation, the touch receiver 50 converts the touch operation into a signal and transmits it to the controller 60. The controller 60 Corresponding processing is performed, and then the image is displayed on the display window 41 through the display screen 70 and the negative refractive index optical element 30, so that it is convenient for the user to perform the next operation. Therefore, by reasonably setting the touch receiver 50 and the controller 60, human-computer interaction can be effectively realized, the user's needs can be met, and cross-infection of bacteria can be avoided.

Or, as shown in FIG. 8, the display screen 70 may be the first display screen 10 and the second display screen 20, that is, the touch receiver 50, the first display screen 10, and the second display screen 20 are all connected to the controller. 60 electrical connections.

As shown in FIG. 13 and FIG. 14, the external control box 80 according to the embodiment of the second aspect of the present disclosure includes: a housing 401, a display screen 701 and a negative refractive index optical element 301. The housing 401 is formed with a display window 411, and the housing 401 is formed with an accommodating cavity 901 inside. The display window 411 may be provided on the front surface of the housing 401, that is, the front surface of the housing 401 may be opened so as to A display window 411 for displaying an image is formed. Among them, Fig. 14 is a schematic diagram of the display window 411, the upper V in the figure indicates that it goes down to the building, and the lower figure represents the up and down buttons.

As shown in FIG. 13, the display screen 701 is arranged in the accommodating cavity 901, the negative refractive index optical element 301 is arranged in the accommodating cavity 901, the display screen 701 is arranged on the light source side 351 of the negative refractive index optical element 301, and the display window 411 is arranged in the negative The imaging side 361 of the refractive index optical element 301. In other words, the display screen 701 and the display window 411 are arranged on both sides of the negative refractive index optical element 301, and the light emitted from the display screen 701 can be converged and imaged by the negative refractive index optical element 301 to form a display around the display window 411. image. With this configuration, the negative refractive index optical element 301 can use the principle of optical imaging to separate the display screen 701 and the display window 411, so that it can directly image in the air, that is, image on the display window 411, thereby preventing the user from being on the display screen 701. The remaining bacteria can further avoid the phenomenon of cross-infection of bacteria among users, and can also solve the problem of dust and touch traces remaining on the display screen 701, and can improve the cleanliness and display clarity of the display screen 701.

According to a specific embodiment of the present disclosure, the surface area of the light source side 351 of the negative refractive index optical element 301 is greater than or equal to the area of the display surface 711 of the display screen 701. That is, the image projected by the negative refractive index optical element 301 on the display surface 711 can completely cover the display surface 711, so that the light emitted by the display surface 711 can be refracted at the negative refractive index optical element 301 and then displayed on the display window 411 Therefore, it is beneficial to improve the imaging clarity and stability of the external control box 80 of the elevator, and to ensure that the display image of the display screen 701 will not be lost when passing through the negative refractive index optical element 301.

Furthermore, the area of the imaging side surface of the negative refractive index optical element 301 is greater than or equal to the area of the display window 411. That is, the image projected by the negative refractive index optical element 301 on the display window 411 can completely cover the display window 411, so that all the light emitted by the display surface 711 can be displayed at the display window 411, which can be beneficial to lift the external control box of the elevator. 80's imaging clarity and stability. Wherein, the area of the light source side 351 surface and the imaging side 361 surface of the negative refractive index optical element 301 may be the same. Of course, the area of the imaging side surface of the negative refractive index optical element 301 may also be smaller than the area of the display window 411.

Specifically, as shown in FIG. 15, the external control box 80 further includes: a touch receiver 501 and a controller 601, and both the touch receiver 501 and the display screen 701 are electrically connected to the controller 601. In addition, the touch receiver 501 is disposed at the display window 411, and both the touch receiver 501 and the display screen 701 are electrically connected to the controller 601. The touch receiver 501 is used to receive the user's touch operation at the display window 411. After receiving the user's touch operation, the touch receiver 501 can convert the touch operation into a signal and transmit it to the controller 601 to control The device 601 can perform corresponding processing, and then display the image on the display window 411 through the display screen 701 and the negative refractive optical element 301, which can facilitate the user to perform the next operation. Therefore, by reasonably setting the touch receiver 501 and the controller 601, human-computer interaction can be effectively realized, the user's needs can be met, and cross-infection of bacteria can be avoided.

The arrangement of the negative refractive index optical element 301 will be described below.

As shown in FIGS. 16 and 18, the negative refractive index optical element 301 includes two transparent substrates 311 and an optical waveguide array 321. The optical waveguide array 321 includes a plurality of optical waveguides 3211, and the plurality of optical waveguides 3211 are arranged in an array. , The optical waveguide array 321 is disposed between the two transparent substrates 311. The two transparent substrates 311 are mainly used to protect the optical waveguide array 321. The optical waveguide array 321 can cause the light emitted by the display screen 701 to undergo one or more refractions within it, and finally display at the display window 411, thereby forming a display image For the image, using the optical waveguide array 321 can effectively remove stray light, which can make the display real and high-definition. Wherein, the transparent substrate 311 may be a glass plate.

Alternatively, as shown in FIG. 18 and FIG. 19, the optical waveguide arrays 321 are in two groups, and the two sets of optical waveguide arrays 321 are composed of single-column and multi-row optical waveguides 3211 with rectangular cross-sections arranged obliquely at 45°. . The two sets of optical waveguide arrays 321 arranged in this way can reduce the difficulty of manufacturing the optical waveguide 3211, and can make the displayed image real and high-definition.

Alternatively, as shown in FIG. 16 and FIG. 17, the optical waveguide array 321 is a set, and the set of optical waveguide array 321 includes multiple rows and multiple columns, and rectangular optical waveguides 3211 arranged obliquely at 45°. The set of optical waveguide arrays 321 arranged in this way has a simple structure, and can make the displayed image real and high-definition.

In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "exemplary embodiments", "examples", "specific examples", or "some examples" etc. means to incorporate the implementation The specific features, structures, materials or characteristics described by the examples or examples are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above-mentioned terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

Although the embodiments of the present disclosure have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and modifications can be made to these embodiments without departing from the principle and purpose of the present disclosure. The scope of the present disclosure is defined by the claims and their equivalents.

Claims

An elevator, characterized in that it comprises:

A box body provided with an opening;

A door body, the door body being opened and closed at the opening of the box body;

An air imaging device, the air imaging device is arranged in the box and spaced apart from the door, the air imaging device includes: a display screen and a negative refractive index optical element, the display screen is arranged in the negative refractive index Rate the light source side of the optical element.
The elevator according to claim 1, wherein the box body comprises: a front panel, a rear panel and two side panels, the two side panels are connected between the front panel and the rear panel and They are arranged at intervals from left to right, the opening is formed at the front plate, and the air imaging device is arranged on the front plate or one of the side plates of the box body.
The elevator according to claim 2, wherein a mounting groove is formed on the front panel or the side panel, and the air imaging device is disposed in the mounting groove.
The elevator according to claim 3, wherein the installation groove is formed on the front plate, the display screen is arranged perpendicular to the side plate, and the negative refractive index optical element is opposite to the front plate. The surface and the surface of the side plate are arranged obliquely.
The elevator according to claim 1, wherein the box body comprises: a front panel, a rear panel and two side panels, the two side panels are connected between the front panel and the rear panel and They are arranged at intervals from left to right, the openings are formed at the front plate, and the air imaging device is arranged at the junction of the front plate and one of the side plates.
The elevator according to claim 5, wherein the display screen is arranged parallel to the surface of the side panel or the front panel, and the negative refractive index optical element is opposite to the surface of the front panel and the side panel. The surface of the board is set obliquely.
The elevator according to claim 1, wherein the air imaging device further comprises: a housing, and the display screen and the negative refractive index optical element are both arranged in the housing;

An installation groove is formed in the box body, the installation groove and the opening are arranged at intervals, the housing is arranged in the installation groove, the housing is provided with a display window, the display window is arranged on the negative The imaging side of the refractive index optical element, or the negative refractive index optical element is arranged at the display window.
The elevator according to claim 1, wherein the air imaging device further comprises: a touch receiver and a controller, and both the touch receiver and the display screen are electrically connected to the controller.
The elevator according to claim 1, wherein the display screen comprises: a first display screen and a second display screen, the first display screen and the second display screen are arranged at intervals with a placement space formed in the middle ；

The negative refractive index optical element includes: a first negative refractive index optical element and a second negative refractive optical element, the first negative refractive optical element and the second negative refractive optical element are arranged in the placement space Inside, the first display screen is arranged on the light source side of the first negative refractive index optical element, and the second display screen is arranged on the light source side of the second negative refractive index optical element.
The elevator according to claim 9, wherein the first display screen and the second display screen are arranged in parallel.
The elevator according to claim 9, wherein the angle between the first display screen and the first negative refractive index optical element is a, and the second display screen and the second negative refractive index The angle between the optical elements is b, where a=b.
The elevator according to claim 1, wherein the negative refractive index optical element includes two transparent substrates and an optical waveguide array, the optical waveguide array includes a plurality of optical waveguides, and the plurality of optical waveguides are arranged in an array The optical waveguide array is arranged between the two transparent substrates.
The elevator according to claim 12, characterized in that, the optical waveguide array is composed of two sets of optical waveguides each consisting of a single row and multiple rows of rectangular cross-section optical waveguides arranged obliquely at 45°, and the two sets of optical waveguide arrays The waveguide directions of the corresponding parts of each are perpendicular to each other; or,

The optical waveguide array is a group and includes multiple rows and rows of rectangular optical waveguides arranged obliquely at 45°.
An external control box, characterized in that it comprises:

A housing, the housing is formed with a display window and an accommodating cavity is formed inside;

A display screen, the display screen is arranged in the accommodating cavity;

A negative refractive index optical element, the negative refractive index optical element is arranged in the containing cavity, the display screen is arranged on the light source side of the negative refractive index optical element, and the display window is arranged on the negative refractive optical element The imaging side.
The external control box according to claim 14, wherein the negative refractive index optical element is arranged on the rear side of the display window, and the display screen is attached to the side wall of the housing.
The external control box according to claim 14, wherein the area of the side surface of the light source of the negative refractive index optical element is greater than or equal to the area of the display surface of the display screen; and/or

The area of the imaging side surface of the negative refractive index optical element is greater than or equal to the area of the display window.
The external control box according to claim 14, wherein the external control box further comprises: a touch receiver and a controller, the touch receiver is arranged at the display window, and the touch receiver Both the monitor and the display screen are electrically connected to the controller.
The external control box according to claim 14, wherein the negative refractive index optical element comprises: two transparent substrates and an optical waveguide array, the optical waveguide array includes a plurality of optical waveguides, and a plurality of the optical waveguides Arranged in an array, the optical waveguide array is arranged between the two transparent substrates.
The external control box according to claim 18, wherein the optical waveguide array is composed of two sets of optical waveguides each consisting of a single row and multiple rows of rectangular cross-section optical waveguides arranged obliquely at 45°, and the two sets of optical waveguides The waveguide directions of the mutually corresponding parts of the waveguide array are perpendicular to each other; or

The optical waveguide array is a group and includes multiple rows and rows of rectangular optical waveguides arranged obliquely at 45°.