CN213834093U

CN213834093U - Elevator holographic control device and elevator

Info

Publication number: CN213834093U
Application number: CN202022170510.7U
Authority: CN
Inventors: 陈川; 方涛; 徐俊峰
Original assignee: Future Beijing Black Technology Co ltd
Current assignee: Future Beijing Black Technology Co ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-07-30
Anticipated expiration: 2030-09-28

Abstract

The utility model discloses a holographic controlling means of elevator and elevator, holographic controlling means of elevator are used for controlling the elevator through non-contact mode, include: the device comprises a display screen, a holographic imaging film, a transflective device and a shell; the shell comprises an accommodating cavity and an opening, the transflective device is arranged at the opening, and the display screen and the holographic imaging film are arranged in the accommodating cavity; the display screen at least displays control information of the elevator and emits light; the light rays are transmitted to the transflective device and reflected, the reflected light rays are emitted to the holographic imaging film, the emitted light rays are transmitted in the opposite direction of incidence to the holographic imaging film and are transmitted through the transflective device, and a holographic image at least comprising control information is formed on one side of the transflective device far away from the accommodating cavity. The utility model provides a holographic image of the holographic controlling means accessible non-physical contact of elevator controls the elevator, avoids many people to use the health hidden danger that entity button control elevator brought to have good use and experience.

Description

Elevator holographic control device and elevator

Technical Field

The utility model belongs to the technical field of the elevator, concretely relates to holographic controlling means of elevator and elevator.

Background

With the increasing improvement of the living standard of people, the elevator becomes an indispensable important device in the life of people, and most buildings such as houses, hospitals, office buildings, schools and the like have the figure of the elevator. Although the elevator is convenient to use, people need to touch control keys or keys on a display screen when using the elevator, different users of the elevator can touch the keys, bacteria, viruses and the like are easy to accumulate on the keys, and cross infection is easy to cause. Cross-infection of elevators has become a considerable problem in places with dense crowds such as hospitals, schools and office buildings, or in sanitary events with infection risks caused by public contact such as flu and new crowns.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a holographic controlling means of elevator for control elevator through non-contact mode, include: the device comprises a display screen, a holographic imaging film, a transflective device and a shell; the shell comprises an accommodating cavity and an opening, the transflective device is arranged at the opening, and the display screen and the holographic imaging film are arranged in the accommodating cavity; the display screen at least displays control information of the elevator and emits light; the light rays are transmitted to the transflective device and reflected, the reflected light rays are emitted to the holographic imaging film, the emitted light rays are transmitted in the opposite direction of incidence to the holographic imaging film and penetrate through the transflective device, and a holographic image at least comprising the control information is formed on one side of the transflective device far away from the accommodating cavity.

Optionally, the display screen comprises: a light source, a backlight assembly and an image display layer; and the light rays emitted by the light source are transmitted to the image display layer after passing through the backlight assembly, and at least the light rays comprising the control information are generated.

Optionally, the transflective device comprises: the transparent substrate and the transflective film are attached to one side surface of the transparent substrate; the transflective film is used for reflecting the light rays emitted by the display screen and transmitting the light rays emitted by the holographic imaging film.

Optionally, the transflective device further comprises: the absorption film is attached to one side, far away from the display screen, of the transflective film; the absorption film is used for absorbing light rays which are not emitted by the holographic imaging film.

Optionally, the holographic imaging film comprises: retroreflective elements for propagating light incident thereto in a direction opposite to the incident direction; phase retarding elements disposed between the retroreflective elements and the transflective device for altering the phase of light passing therethrough, the phase retarding elements disposed in abutting relation with the retroreflective elements.

Optionally, the display screen is perpendicular to the transflective device.

The embodiment of the utility model provides an elevator is still provided, including above-mentioned arbitrary elevator holographic control device, still include: an elevator car body and an openable door body; the elevator holographic control device is arranged in the elevator car body.

Optionally, the method further comprises: the fixing piece is used for fixedly arranging the elevator holographic control device in the elevator car body.

Optionally, the fixing member includes at least one of an adhesive member, a clip member, a locking member, and a rivet member.

Optionally, the method further comprises: the elevator holographic control device comprises a controller and a touch collector, wherein the elevator holographic control device and the touch collector are electrically connected with the controller.

In the above technical scheme provided by the embodiment of the utility model, elevator holographic control device shows elevator control information in the form of holographic image, and the user can directly control or instruct the holographic image floating in the air, without contacting the solid key, avoiding the hidden health trouble caused by the cross use of the elevator solid key; moreover, the control information of the holographic image has strong technological sense, and the use experience can be improved.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

Fig. 1 shows a schematic diagram one of a holographic elevator control device provided by an embodiment of the present invention;

fig. 2 shows a schematic diagram two of an elevator holographic control device provided by an embodiment of the present invention;

fig. 3 shows a schematic diagram one of a display screen in a holographic elevator control device according to an embodiment of the present invention;

fig. 4a shows a first schematic diagram of a reflector lamp cup in an elevator holographic control device according to an embodiment of the present invention;

fig. 4b shows a schematic diagram of a reflection lamp cup in the holographic control device for the elevator according to an embodiment of the present invention;

fig. 5 shows a schematic diagram three of the holographic elevator control device provided by an embodiment of the present invention;

fig. 6 shows a schematic diagram one of a transflective device in an elevator holographic control device according to an embodiment of the present invention;

fig. 7 shows a schematic diagram two of a transflective device in an elevator holographic control apparatus according to an embodiment of the present invention;

fig. 8 shows a schematic diagram of a holographic imaging film in an elevator holographic control device according to an embodiment of the present invention;

fig. 9a is a schematic view showing a retroreflective element in a holographic elevator control device according to an embodiment of the present invention;

fig. 9b is a schematic view of a second retroreflective element in a holographic elevator control device according to an embodiment of the present invention;

fig. 9c shows a third schematic view of a retroreflective element in a holographic elevator control device according to an embodiment of the present invention;

fig. 9d shows a fourth schematic view of a retroreflective element in a holographic elevator control device according to an embodiment of the present invention;

fig. 10a shows a schematic view of a fifth retroreflective element in a holographic elevator control device according to an embodiment of the present invention;

fig. 10b shows a sixth schematic view of a retroreflective element in a holographic elevator control device according to an embodiment of the present invention;

fig. 10c shows a seventh schematic view of a retroreflective element in a holographic elevator control device according to an embodiment of the present invention;

fig. 11a shows a schematic view one of an elevator according to an embodiment of the present invention;

fig. 11b shows a schematic diagram two of an elevator according to an embodiment of the present invention.

Description of reference numerals: 10-a display screen; 101-a light source; 102-a backlight assembly; 1021-reflector lamp cup; 1022-a diffusion sheet; 103-an image display layer; 30-transflective devices; 301-a transparent substrate; 302-transflective film; 303-an absorbing film; 20-a holographic imaging film; 201-retroreflective elements; 2011-substrate; 2012-high reflection coating; 2013-a solid spherical microstructure made of transparent materials; 2014-a right-angled vertex microstructure of a regular triangular cone made of a solid transparent material; 2015-solid isosceles triangular pyramid right-angle vertex microstructure made of transparent materials; 2016-cubic cone right-angle vertex microstructure made of solid transparent materials; 2017-hollow concave right-angle vertex microstructure of a regular triangular cone; 2018-hollow recessed isosceles triangular cone right-angle vertex microstructure; 2019-hollow recessed cube cone right angle vertex microstructure; 202-a phase delay element; 40-a housing; 100-elevator holographic control device; 200-an elevator car; 300-openable and closable door body.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic concept of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.

It should be noted that, for simplicity and clarity of description, the following description sets forth various embodiments of the present invention. Numerous details of the embodiments are set forth to provide an understanding of the principles of the invention. It is clear, however, that the solution according to the invention can be implemented without being limited to these details. Some embodiments are not described in detail, but rather only to give a framework, in order to avoid unnecessarily obscuring aspects of the present invention. Hereinafter, "including" means "including but not limited to", "according to … …" means "at least according to … …, but not limited to … … only". "first," "second," and the like are used merely as references to features and are not intended to limit the features in any way, such as in any order. In view of the language convention of chinese, the following description, when it does not specifically state the number of a component, means that the component may be one or more, or may be understood as at least one.

The embodiment of the utility model provides an elevator holographic control device for control elevator through non-contact mode, it is shown to refer to fig. 1 and fig. 2 (fig. 2 is the section view of the device that fig. 1 shows), include: the holographic imaging device comprises a display screen 10, a holographic imaging film 20, a transflective device 30 and a shell 40, wherein the shell 40 comprises an accommodating cavity and an opening, the transflective device 30 is arranged at the opening, and the display screen 10 and the holographic imaging film 20 are arranged in the accommodating cavity; the display screen 10 at least displays control information of the elevator and emits light, the light is transmitted to the transflective device 30 and reflected, the reflected light is emitted to the holographic imaging film 20, the emitted light is transmitted in the opposite direction of incidence to the holographic imaging film 20 and transmitted through the transflective device 30, and a holographic image RI at least including the control information is formed on one side of the transflective device 30 away from the accommodating cavity.

In this embodiment, as shown in fig. 1, the housing 40 includes an accommodating cavity and an opening, the transflective device 30 is disposed at the opening, and the display screen 10 and the holographic imaging film 20 are disposed in the accommodating cavity; the hologram image RI is formed outside the opening. Alternatively, the transflective device 30 may also be disposed with an opening close to the inside, that is, a certain distance is left between the transflective device 30 and the opening, as long as it is ensured that the light ray forming the holographic image RI can smoothly exit from the housing 40 without being blocked. The housing 40 can facilitate the installation and arrangement of the elements such as the display screen 10, the transflective device 30, the holographic imaging film 20 and the like, so that the elements keep relative position relationship, and the whole elevator holographic control device is convenient to disassemble and assemble.

Alternatively, the housing 40 may be any desired shape, such as a cube, cuboid, spherical, or prismatic shape; in a preferred embodiment, as shown in fig. 1 and 2, the housing 40 comprises a rectangular and/or square shape, and the square housing 40 is easy to machine and install inside the elevator. The housing 40 may be made of a light-impermeable material, such as black resin plastic; the housing 40 made of opaque material can avoid the influence of external light on the holographic imaging process, and can also avoid the situation that a user directly sees the optical elements inside the elevator holographic control device, thereby improving the use experience of the elevator holographic control device.

In this embodiment, the display screen 10 includes a display device capable of displaying images and emitting light, and the displayed images at least include elevator control information, such as floor button icons, door opening and closing icons, elevator operation state icons, current floor icons, and the like; further, the displayed image can also comprise advertisement, safety prompt and other common display contents in the elevator. The image displayed on the display screen 10 includes static or dynamic text, pictures or videos, which is not limited in this embodiment.

Alternatively, the display screen 10 may be a liquid crystal display screen, or an active Light-Emitting dot-matrix screen composed of Light-Emitting point Light sources such as LEDs (Light-Emitting diodes), OLEDs (Organic Light-Emitting diodes), and plasma Light-Emitting points; the projection imaging device may be a projection imaging device that is driven by a Light source such as an LED, an OLED, a laser, a fluorescent Light, or a combination thereof, based on a projection technology such as dlp (digital Light processing), LCOS (liquid Crystal on silicon), liquid Crystal, or the like, and is reflected or transmitted by a display panel such as a dmd (digital micro device), LCOS, LCD, or the like, and then projected onto a projection screen through a projection lens to form an image; the projection imaging device can also be used for scanning and imaging the laser beam on the screen; also, the display screen 10 includes a real image or a virtual image formed by one or more refractions or reflections by all of the display devices described above.

In this embodiment, the light propagates to the transflective device 30 and reflects back; the transflective device 30 may transmit light and reflect light simultaneously, may reflect at least light emitted from the display screen 10, and may transmit light emitted from the holographic imaging film 20. The transmissive and reflective properties of the transflective device 30 do not mean that only the light emitted from the display screen 10 is reflected and only the light emitted from the holographic imaging film 20 is transmitted, but the reflectance of the transflective device 30 to the light emitted from the display screen 10 has a certain range of values, for example, the above reflectance is between 20% and 90%; meanwhile, the transmittance of the transflective device 30 for the light emitted from the holographic imaging film 20 also has a certain range of values, for example, the transmittance is between 20% and 90%; it can be understood that the higher the reflectivity of the transflective device 30 to the light emitted from the display screen 10 and the higher the transmittance to the light emitted from the holographic imaging film 20, the greater the number of light used to form the holographic image RI, that is, the higher the brightness of the holographic image RI, the higher the light efficiency of the elevator holographic control apparatus.

Alternatively, the transflective device 30 includes a transparent material such as a plate made of glass, quartz, resin, or high molecular polymer; the transparent material may be additionally provided with a film layer or an optical element having a transflective function, which is not limited in this embodiment.

In this embodiment, the light reflected by the transflective device 30 is emitted to the holographic imaging film 20, and the emitted light propagates in the opposite direction of the incident light to the holographic imaging film 20; specifically, the holographic imaging film 20 emits the light incident thereon in the opposite direction of the incident direction, which may be considered as parallel to the emitting direction, or on the same straight line, but in the opposite direction; microscopically, it can be considered that the light reflection path and the light incidence path are slightly shifted; however, from a macroscopic view, the two paths can be considered to be almost completely coincident, which is achieved by one or more reflections of light rays at the holographic imaging film 20. The holographic imaging film 20 is used not only to change the direction of the light incident thereto, but also to change the properties of the light incident thereto, such as at least one of light polarization properties and light spectrum properties, so that the light with the changed properties can be transmitted through the transflective device 30 to form the holographic image RI.

In this embodiment, the light emitted from the holographic imaging film 20 transmits through the transflective device 30, and a holographic image RI at least including control information is formed on one side of the transflective device 30 away from the accommodating cavity, as shown in fig. 2, the holographic image RI is formed in the outer space of the opening of the housing 40, that is, the holographic image RI, the display screen 10 and the holographic imaging film 20 are respectively on two sides of the transflective device 30; and the holographic image RI and the display screen 10 (in particular, the side of the display screen 10 on which the image is formed) are symmetrical with respect to the transflective device 30. As shown in fig. 1 and 2, the holographic image RI is formed in air and can be formed without the aid of any imaging medium (e.g., dust, moisture, imaging crystals).

The holographic image RI in the embodiment of the present invention is a real image (real image) formed by converging actual light, and is different from a virtual image (virtual image) that can only be viewed and cannot be touched, and the real image can be directly touched. Taking the light emitted from two display areas (e.g., pixel points) at the upper edge of the display screen 10 in fig. 2 as an example, after the light passes through the transflective device 30, the holographic imaging film 20 and the transflective device 30 once, the light corresponding to the display areas outside the opening converges to form a corresponding area on the holographic image RI, and at this time, a user, such as an elevator passenger, with two eyes in the observation area can observe and touch a real image floating in the air and capable of being touched, so that the user has a good sensory experience; the observation region is specifically located in a space on a side of the holographic image RI away from the transflective device 30, and is a space region surrounded by light rays at the peripheral edge of the display screen 10 after passing through the transflective device 30, the holographic imaging film 20 and the transflective device 30 and converging to form the holographic image RI, for example, light rays emitted from a display region at the edge of the display screen 10 are drawn in fig. 2, and the observation region is located in a space region surrounded by the light rays after converging to form the holographic image RI through the imaging process.

In this embodiment, as shown in fig. 1, the holographic image RI can at least display control information of the elevator, including a floor virtual key, an elevator door open/close key, an elevator operation state indication, a current floor, and the like, and as shown in fig. 1, the holographic image RI displays that the current operation state of the elevator is going upstairs, the floor where the elevator is located is 6 floors, and the elevator can reach 1-8 floors; the holographic image RI can also display common display contents in the elevator, such as advertisements, trailers, and the like, and the holographic image RI can display corresponding contents only by controlling the display screen 10 to display the contents.

The embodiment of the utility model provides a holographic controlling means of elevator is different from prior art, shows the control information of elevator at least with the form of holographic image, and the user can directly make control or instruction to holographic image, need not to contact entity button, avoids the health hidden danger that elevator entity button cross use brought; moreover, the control information in the form of the holographic image also has strong technological sense, and the use experience can be improved.

On the basis of the above embodiments of the present invention, the display effect of the display screen 10, for example, the brightness and uniformity of the picture, affect the display effect of the holographic image RI; as shown in fig. 3, the display screen 10 includes: the display device comprises a light source 101, a backlight assembly 102 and an image display layer 103, wherein light emitted by the light source 101 passes through the backlight assembly 102 and then propagates to the image display layer 103, and at least light including control information is generated. Specifically, the light source 101 provides light, the backlight assembly 102 converts the light emitted from the light source 101 into uniform surface light, and the uniform surface light passes through the image display layer 103 to generate an image, wherein the image at least includes an elevator control information image.

In this embodiment, the light emitted from the light source 101 may be a point light source, a line light source or a surface light source, and the number of the light sources 101 may be one or more, which is not limited; the Light source 101 includes at least one electroluminescent element, which generates Light by electric Field excitation, including but not limited to Light Emitting Diodes (LEDs), Organic Light Emitting Diodes (OLEDs), Mini Light Emitting diodes (Mini LEDs), Micro LEDs (Micro LEDs), Cold Cathode Fluorescent Lamps (CCFLs), Cold Light sources (Cold LEDs Light, CLL), Electro Luminescence (EL), electron Emission (FED), or Quantum Dot Light Sources (QDs).

In this embodiment, the image display layer 103 includes a liquid crystal panel, and the liquid crystal panel includes a TN liquid crystal panel (TN), an STN liquid crystal panel (Super Twisted Nematic), a TFT liquid crystal panel (Thin Film Transistor; TFT), an MIM liquid crystal panel (Metal/Insulator/Metal; MIM), or the like; it can be understood that when light is provided for the liquid crystal screen, the liquid crystal screen can convert the light into an image and emit the light containing image information; when light passes through the liquid crystal screen, the propagation direction of the light is hardly or rarely changed by the liquid crystal screen, so that before the light reaches the liquid crystal screen, the light emitted by the light source is converted into light and shade uniform surface light source light through the backlight assembly 102, an image with uniform light and shade distribution can be formed after the light passes through the liquid crystal screen, and the light containing image information is emitted.

In this embodiment, since the light emitted from the light source 101 has a certain divergence angle, the light with a larger divergence angle, for example, the light with a divergence angle larger than 15 °, 20 °, 30 °, 45 °, 60 °, or 75 °, is emitted all around, and finally is difficult to reach the image display layer 103 for imaging; in addition, in practical applications, the light sources 101 are generally point light sources (e.g., lamp beads) or strip light sources (e.g., lamp strips), and gaps exist among the plurality of light sources 101, so that the brightness of the gaps is reduced, and the final image is likely to have uneven brightness. The backlight assembly 102 is mainly used to improve the utilization rate of the light emitted from the light source 101 and the uniformity of the light distribution, so as to improve the display effect of the display screen 10.

In this embodiment, as shown in fig. 3, the backlight assembly 102 includes a reflective cup 1021 and a diffusion sheet 1022, specifically, the reflective cup 1021 is disposed in the light emitting direction of the light source 101, the light passes through the reflective cup 1021 and then is transmitted to the diffusion sheet 1022, and the diffusion of the light by the diffusion sheet 1022 realizes uniform distribution.

In this embodiment, as shown in fig. 3 and 4, the reflector cup 1021 includes a hollow shell with an inner reflective surface, the hollow shell includes a light exit opening O1 and an end opening O2, and the light exit opening O1 faces the image display layer 103; the light source 101 is disposed at the end opening O2 of the hollow housing, either inside or outside the end opening O2; part of the light emitted from the light source 101 (e.g., the central light in fig. 3) is directly transmitted and emitted through the space enclosed by the hollow housing, another part of the light (e.g., the light with the larger divergence angle) is reflected on the internal reflection surface, and the reflected light is focused toward the center of the hollow housing (e.g., the direction connecting the light exit opening O1 and the center of the end opening O2) and emitted through the light exit opening O1; specifically, the size of the end opening O2 is smaller than the size of the light exit opening O1, so that as much light as possible exits to the image display layer 103. Through setting up reflection lamp cup 1021, the great light of divergence angle that the light source 101 sent takes place the reflection at the internal reflection face of hollow shell, and the angle of light changes and gathers together to the center after the reflection, can improve the utilization ratio that the light source 101 sent the light, and then has improved holographic image RI's luminance.

Optionally, the internal reflection surface of the hollow shell includes a reflection surface formed by aluminum plating, silver plating, other metal plating or dielectric film plating, and light can be specularly reflected at least on the reflection surface. The hollow shell may specifically include at least one of a parabolic shape, a conic shape, or a free-form surface shape, and the shape of the hollow shell specifically refers to the shape of the internal reflection surface; it is understood that the shape of the hollow shell may be different from the shape of the internal reflection surface, as long as the internal reflection surface is the shape that can reflect light rays; for convenience of explanation, the hollow shell and the internal reflection surface are consistent in shape.

Optionally, the shape of the light exit opening O1 includes at least one of a circle, an ellipse, a rectangle, a trapezoid, a parallelogram, or a square; the shape of the end opening O2 includes at least one of a circle, an ellipse, a rectangle, a trapezoid, a parallelogram, or a square; the end opening O2 and the light exit opening O1 may be the same or different in shape.

In an alternative embodiment of this embodiment, as shown in fig. 4a, the hollow shell has a rectangular table shape, one or more light sources 101 may be disposed at the position of the end opening O2, when the display screen 10 includes a plurality of light sources 101, the light sources 101 are arranged in a matrix, and a corresponding plurality of reflector cups 1021 is also arranged in a matrix, for example, the light source 101 of the display screen 10 includes 32 LED beads, the 32 LED beads are arranged in an array of 8 × 4, and one reflector cup 1021 may be disposed in cooperation with each LED bead, that is, the reflector cups 1021 are also arranged in an array of 8 × 4; or, every 4 LED lamp beads (for example, 4 LED lamp beads arranged 2 × 2) are provided with one reflector lamp cup 1021, that is, the reflector lamp cups 1021 are arranged according to an array of 4 × 2.

In another alternative embodiment of this embodiment, as shown in fig. 4b, the hollow shell has a long bar prism shape, a plurality of light sources 101 arranged in a linear manner may be disposed at the position of the end opening O2, as shown by a row of light sources 101 arranged in a linear manner in fig. 4b, or a plurality of rows of light sources 101 arranged in a linear manner, when the display screen 10 includes a plurality of light sources 101, the light sources 101 are arranged in a matrix manner, a plurality of reflector cups 1021 are also arranged in sequence, each reflector cup 1021 corresponds to one or more rows of light sources, for example, the light source 101 of the display screen 10 includes 32 LED lamp beads, the 32 lamp beads are arranged in an array of 8 × 4, each row of 8 LED lamp beads corresponds to one long bar prism-shaped reflector cup 1021, that is, the reflector cups 1021 are arranged in an array of 1 × 4; or, each two rows of LED lamp beads are provided with a reflector lamp cup 1021 in a matching manner, that is, the reflector lamp cups 1021 are arranged in an array of 1 × 2; the long-strip prism-shaped reflection lamp cup 1021 corresponds to the plurality of light sources 101 once, the reflection lamp cup 1021 with a small number can improve the light utilization rate, and the replacement and the disassembly are easy.

In yet another alternative embodiment of this embodiment, as shown in fig. 5, the reflective cup 1021 has an elongated prism shape, and the light-emitting opening O1 of the reflective cup 1021 is directed toward the transflective device 30, specifically, the axis of the reflective cup 1021 (for example, the connection line between the end opening O2 and the center of the light-emitting opening O1) is directed toward the transflective device 30, and the included angle between the axis and the transflective device 30 is close to or equal to the angle between the transflective device 30 and the holographic imaging film 20, so that the light emitted from the display screen 10 is directed toward the transflective device 30, so that as much light as possible is reflected, and the light utilization rate is improved; optionally, the angle between the axis of the reflector cup 1021 and the transflective device 30 is between 15 ° and 60 °. It should be understood that elements such as the diffusion sheet 1022 and the image display layer 103 are omitted in fig. 5 for convenience of explanation.

In this embodiment, the collected light is reflected by the reflecting lamp cup 1021, and although the light is collected to the center, the light utilization rate is improved, because the light intensity at the center of the light source 101 is often strong, an obvious bright area and a dark area are formed, and therefore, the uniformity of light distribution needs to be improved; the diffusion sheet 1022 is disposed between the reflective lamp cup 1021 and the image display layer 103, or is close to the light exit surface of the image display layer 103 away from the light source 101, so as to diffuse the light emitted from the reflective lamp cup 1021, and thus the light is uniformly distributed.

In one embodiment of this embodiment, as shown in fig. 3, when the diffusion sheet 1022 is not present, the light rays will propagate to the image display layer 103 along the dotted line in fig. 3; when the diffusion sheet 1022 exists, the diffusion sheet 1022 diffuses light rays into light rays with a plurality of exit angles, two edge light rays with the largest diffusion angle are shown in fig. 3, that is, the diffusion sheet 1022 diffuses light rays at a certain diffusion angle, so that the uniformity of light ray distribution is improved, the final light ray distribution is more uniform, and the imaging effect of the final holographic image RI is better.

In another embodiment of this embodiment, the reflective lamp cup 1021, the image display layer 103 and the diffusion sheet 1022 are sequentially arranged, and after passing through the reflective lamp cup 1021, the light emitted from the light source 101 is collected towards the center and emitted to the image display layer 103 to form an image and emit light, and after passing through the diffusion sheet 1022, the light is uniformly diffused. It should be noted that, in this embodiment, in order to avoid affecting the image quality, the diffusion sheet 1022 needs to be closely attached to the surface of the image display layer 103 on the side away from the light source.

In this embodiment, the diffusion sheet 1022 may be a low-cost scattering optical element, such as a light homogenizing sheet, light may be scattered when passing through the light homogenizing sheet, the light may be transmitted to many different angles, and a small amount of diffraction may occur, but the scattering of light plays a main role, and the degree of diffusion of light is large; alternatively, the diffusion sheet 1022 may be a Diffractive Optical Element (DOE) which has a good diffusion effect control, such as a Beam Shaper (Beam Shaper), and the Diffractive Optical element has a specific microstructure on the surface thereof, and plays a role of expanding light mainly by diffraction, and the size and shape of the diffused light Beam are controllable.

Preferably, the light beam transformed by the light ray passing through the diffusion sheet 1022 in this embodiment has a specific shape in a cross section perpendicular to the propagation direction, that is, the diffusion sheet 1022 can diffuse the light ray passing through it to form a light beam with a specific shape, and the shape of the cross section of the diffused light beam includes, but is not limited to, a circle, an ellipse, a square or a rectangle.

Alternatively, since the diffusion sheet 1022 is generally a soft film material, for the convenience of installation, the diffusion sheet 1022 may be attached to a transparent supporting plate such as glass, and is conveniently installed together with other components.

Optionally, the diffusion sheet 1022 has a maximum diffusion angle of 1 to 30 ° for light in two directions perpendicular to each other; the diffusion angles in two mutually perpendicular directions may be the same or different, for example, a diffusion angle of 1 ° by 30 °; for example, the divergence angle is 5 ° by 5 °.

The embodiment of the utility model provides an elevator holographic control device, through setting up reflection lamp cup 1021, gather together the great light of divergence angle that light source 101 sent, improve the light utilization ratio; the diffusion sheet 1022 diffuses the light, so as to improve the uniformity of light distribution and avoid the occurrence of uneven brightness when the display screen 10 displays content; through the cooperation of each component, display screen 10 light high-usage, image brightness is high, and the homogeneity is good, can further promote holographic image RI's display effect.

On the basis of the above embodiments of the present invention, the number of the diffusion sheets 1022 includes a plurality of diffusion sheets 1022, and a preset distance is provided between adjacent diffusion sheets 1022. On the basis of the above embodiments, in practical situations, one diffusion sheet 1022 is used to diffuse light once, and a good light uniformity effect cannot be perfectly achieved, for example, a region with dark light at a gap between a plurality of light sources 101 still has low brightness after being diffused once, which is not enough to make light distribution uniform well. In this embodiment, the plurality of diffusion sheets 1022 are disposed at intervals to further improve the uniformity of light distribution, and each of the plurality of diffusion sheets 1022 can diffuse the light emitted from the light source 101, so that the imaging brightness of the image display layer 104 is relatively uniform. The diffusion sheets 1022 may be the same type of diffusion sheet or different types of diffusion sheets, and specific properties of the different types of diffusion sheets can be referred to the above description of the diffusion sheets 1022, and are not described herein again.

Alternatively, the two diffusion sheets 1022 may have the same or different degrees of diffusion (e.g., diffusion angles) of light rays; for example, the diffusion sheet 1022 close to the light source 101 diffuses light rays to a larger extent in the horizontal direction (for example, the horizontal direction is the long side of the liquid crystal panel), and the diffusion sheet 1022 far from the light source 101 diffuses light rays to a larger extent in the vertical direction (for example, the horizontal direction is the short side of the liquid crystal panel); for example, when the long prismatic hollow casing of fig. 4b is used as the reflective cup 1021, the diffusion sheet 1022 close to the light source 101 diffuses light rays in the horizontal direction (for example, the horizontal direction is the direction in which the long prismatic hollow casing extends) and the vertical direction almost equally, and the diffusion sheet 1022 far from the light source 101 diffuses light rays in the horizontal direction to a greater extent, thereby ensuring that light rays emitted from a greater number of light sources 101 in the horizontal direction can be diffused more uniformly.

Meanwhile, in order to ensure that the diffusion sheets 1022 can all play a corresponding role, a preset distance is arranged between every two adjacent diffusion sheets 1022, and the preset distance can be specifically 5-30 mm, and preferably 10-20 mm. In addition, the diffusion sheets 1022 in this embodiment may be disposed on the same side of the image display layer 103 close to the light source 101, or the diffusion sheets 1022 may be disposed on both sides of the image display layer 103 in a dispersed manner, and the diffusion sheet 1022 disposed on the light-emitting outer side of the image display layer 103 needs to be closely attached to the image display layer 103, so as to avoid affecting the image sharpness.

Since the diffusion sheets 1022 are spaced apart from each other by a predetermined distance, the diffusion sheets 1022 increase the thickness of the display screen 10, and in a preferred embodiment, two diffusion sheets 1022 are provided, which not only can diffuse light well, but also can reduce the thickness of the display screen 10. The two diffusion sheets 1022 may be disposed on two sides of the image display layer 103, or on one side of the image display layer 103, preferably on one side of the image display layer 103 close to the light source 101, so as to avoid the problem that the diffusion sheets 1022 are directly exposed to the outside and are easily damaged, and the diffusion sheets 1022 and the reflector cups 1021 in the backlight assembly 102 are both disposed inside and are also easily installed; the number of the diffusion sheets 1022 may be further increased on the basis of the two diffusion sheets 1022, and the number of the diffusion sheets 1022 in the embodiment of the present invention is not limited.

The embodiment of the utility model provides a holographic controlling means of elevator, diffusion piece 1022 through a plurality of intervals setting plays better diffusion effect to the light, and even light luminance guarantees that the formation of image luminance of display screen 10 is even, and then promotes holographic image RI's the effect of watching.

On the basis of the above-mentioned embodiments of the present invention, as shown in fig. 6, the transflective device 30 includes: the display device comprises a transparent substrate 301 and a transflective film 302, wherein the transflective film 302 is attached to one side surface of the transparent substrate 301, which may be a side surface close to the display screen 10 or a side surface far away from the display screen 10, in fig. 6, the transflective film 302 is attached to one side surface of the transparent substrate 301 close to the transparent substrate 301 for explanation, and the transflective film 302 is used for reflecting light emitted by the display screen 10 and transmitting light emitted by the holographic imaging film 20.

Optionally, the transparent substrate 301 includes a plate made of transparent materials such as glass, quartz, transparent polymer, and the like, and mainly plays a role in supporting, so that the transflective film 302 is conveniently plated or attached on the surface of the plate, and after the transflective film 302 is plated or attached, the transflective film 302 and the transparent substrate 301 should be regarded as a whole, and mainly the transflective property of the transflective film 302 plays a role in transmitting and reflecting light.

In this embodiment, the transflective film 302 includes an inorganic dielectric film layer or an organic polymer film layer, and may be disposed on one side surface of the transparent substrate 301 by plating or bonding, it should be understood that, for convenience of explanation, a certain gap is formed between the transflective film 302 and the transparent substrate 301 in fig. 6, but the gap does not necessarily exist between the transflective film 302 and the transparent substrate 301; in practical applications, there may be a gap or a close fit between the transflective film 302 and the transparent substrate 301.

Specifically, the inorganic dielectric film layer may be a single film layer or a stack of a plurality of film layers, the components of the film layers are selected from metal oxides, metal nitrides, metal oxynitride coating films, and fluorides, which may be one or more of tantalum pentoxide, titanium dioxide, magnesium oxide, zinc oxide, zirconium oxide, silicon dioxide, magnesium fluoride, silicon nitride, silicon oxynitride, and aluminum fluoride; the organic polymer film layer can be a single organic film layer or a plurality of organic film layers which are superposed and selected from organic polymers with thermoplasticity; the thickness of each film layer is 1-100nm, and the film layers have different optical properties, such as light transmittance and reflectance, by different materials, different stacking sequences and different thicknesses.

In one embodiment of this embodiment, the transflective film 302 comprises a polarizing transflective film, and the light emitted from the display screen 10 comprises polarized light, such as linearly polarized light, circularly polarized light, or elliptically polarized light; when the transflective film 302 is a polarizing transflective film, light of a first polarization state is reflected and light of a second polarization state is transmitted, and the first polarization state is perpendicular to the second polarization state; the transflective film 302 is specifically understood to have a high reflectance for light of a first polarization and a high transmittance for light of a second polarization, such as an average reflectance of the transflective film 302 for light of the first polarization of greater than 50%, preferably greater than 70%, or even greater than 90%, and an average transmittance for light of the second polarization of greater than 50%, preferably greater than 70%, or even greater than 90%.

In a preferred embodiment, the first polarized light and the second polarized light are linearly polarized light (e.g., S-polarized light or P-polarized light), the light emitted from the display screen 10 including the first polarized light is reflected by the transflective film 302, the polarization state of the reflected light is hardly changed, the first polarized light is emitted to the holographic imaging film 20, the holographic imaging film 20 emits the light in the opposite direction of the incident direction, and the polarization state of the light is changed to the second polarized light, and the transflective film 302 can transmit the second linearly polarized light to form the holographic image RI.

In another preferred embodiment, the display panel 10 emitting the first polarized light in a specific wavelength band can be selected, and the transflective film 302 is configured to have a high reflectance with respect to the first polarized light in the specific wavelength band and a high transmittance with respect to the first polarized light in other wavelength bands and the second polarized light in the visible light wavelength band. For example, the average reflectivity of the transflective film 302 for P-polarized light in the specific wavelength band is greater than 80%, or even greater than 90%, while the average transmissivity for S-polarized light in other wavelength bands and S-polarized light in the visible wavelength band is greater than 80%, or even greater than 90%; the specific wavelength range may be, for example, red light having a central wavelength of 590nm to 690nm, green light having a central wavelength of 500nm to 565nm, or blue light having a central wavelength of 410nm to 480 nm.

The embodiment of the utility model provides an in, through setting up transparent substrate 301 and passing through anti-membrane 302 for the light that display screen 10 sent is as much as possible reflected by anti-membrane 302 that passes through, improves the light utilization ratio, and then promotes holographic image RI's luminance and definition.

On the basis of the above-mentioned embodiment of the utility model, as shown in fig. 7, the transflective device 30 further includes the absorption film 303, and the laminating setting of absorption film 303 is in the one side of keeping away from the display screen 10 at the transflective film 302, and the absorption film is used for absorbing the light of non-holographic imaging film 20 outgoing.

In this embodiment, the absorption film 303 includes an inorganic dielectric film layer or an organic polymer film layer, and is disposed on the surface of the transparent substrate 301 in a plating or bonding manner for absorbing the light emitted from the non-holographic imaging film 20, and the absorption film 303 needs to be disposed on the side of the transflective film 302 away from the display screen 10, so as to ensure the reflection of the light emitted from the display screen 10 on the transflective film 302.

As shown in fig. 7, the absorption film 303 and the transflective film 302 are both attached to the inner side of the transparent substrate 301 close to the display screen 10, and meanwhile, the absorption film 303 is far away from the display screen 10 compared with the transflective film 302, and the film layers are both arranged on the inner side, so that damage to the film layers caused by external damage such as scraping, bumping and the like can be avoided; alternatively, the absorption film 303 may be attached to the outer side of the transparent substrate 301 far away from the display screen 10, and the transflective film 302 may be attached to the inner side (not shown in the drawings) of the transparent substrate 301 near the display screen 10; still alternatively, the absorption film 303 and the transflective film 302 are both attached to the outer side of the transparent substrate 301 away from the display screen 10, and the absorption film 303 is further away from the display screen 10 than the transflective film 302 (not shown in the drawings). In fig. 7, for convenience of explanation, there is a certain gap between each film layer and the substrate, but it does not mean that there must be a gap between the elements; in practical application, gaps exist among the elements or the elements are tightly attached, and under the condition of convenient implementation, the elements are tightly attached.

In one embodiment of the present embodiment, when the transflective film 302 comprises a polarizing transflective film, the absorbing film 303 comprises a polarizing absorbing film, the light emitted from the display panel 10 comprises polarized light, the transflective film 302 reflects light of a first polarization state and transmits light of a second polarization state, and the first polarization state is perpendicular to the second polarization state; the properties of the transflective film 302 are similar to those of the above embodiments and are not described again; at this time, the absorption film 303 is a polarization absorption film and matches with the polarization transflective property of the transflective film 302, for example, the transflective film 302 reflects light of the first polarization state and transmits light of the second polarization state, and the absorption film 303 transmits light of the second polarization state and absorbs light of the non-second polarization state (including at least light of the first polarization state).

In a preferred embodiment, the first polarized light and the second polarized light are linearly polarized light, the light emitted from the display screen 10 including the first polarized light is reflected on the transflective film 302, the polarization state of the reflected light is hardly changed, the first polarized light is emitted to the holographic imaging film 20, the holographic imaging film 20 emits the light in the opposite direction to the incident direction, and the polarization state of the light is changed to the second polarized light, and the transflective film 302 can transmit the second polarized light; the absorption film 303 only transmits the second linearly polarized light, and the light not completely converted in polarization property or the missing first linearly polarized light is absorbed by the absorption film 303, so that only the light forming the holographic image RI and the light in the second linearly polarized state transmit as much as possible, and the observation of the holographic image RI is prevented from being influenced by glare, ghost and the like caused by the light in the other polarized states.

In the embodiment of the utility model, through setting up transparent substrate 301, pass through anti-membrane 302 and absorption film 303, transparent substrate 301's supporting role will pass through anti-membrane 302 and absorption film 303 laminating installation for the light that display screen 10 sent is reflected by anti-membrane 302 as much as possible, improves the light utilization ratio, and then promotes holographic image RI's luminance and definition; meanwhile, stray light except the light ray forming the holographic image RI is absorbed by the absorption film 303, so that the phenomena of glare, ghost shadow and the like are avoided, and the viewing experience of the holographic image RI is improved.

On the basis of the above embodiment of the present invention, as shown in fig. 8, the hologram imaging film 20 includes: retroreflective elements 201, the retroreflective elements 201 being used to transmit light incident thereto in a direction opposite to the incident direction; phase retarding element 202, phase retarding element 202 disposed between retroreflective element 201 and transflective device 30 for changing the phase of light passing therethrough, phase retarding element 202 disposed in abutting relation to retroreflective element 201.

In this embodiment, the retroreflective elements 201 can emit light incident thereon in a direction opposite to the incident direction, and the phase retardation elements 202 are disposed between the retroreflective elements 201 and the transflective device 30, the phase retardation elements 202 being used to change the phase of the light passing therethrough. Specifically, after the light emitted from the display screen 10 is reflected by the transflective device 30, the reflected light includes light in a first polarization state, and the phase of the light changes as the polarization state of the light changes when the light in the first polarization state passes through the phase delay element 202; the light continuously propagates to the retroreflective element 201, exits in the direction opposite to the incident direction, passes through the phase retardation element 202 again, the polarization state of the light is changed again, and is converted into light in a second polarization state, the light in the second polarization state exits to the transflective device 30 and is transmitted, and the transmitted light forms a holographic image RI; optionally, the phase delay element 202 comprises a wave plate.

Optionally, the holographic imaging film 20 further includes a substrate, the substrate is made of metal, plastic, or the like and has a supporting function, and the retroreflective elements 201 and the phase retardation elements 202 are sequentially disposed on the substrate, so as to facilitate the assembly and disassembly of the holographic imaging film 20.

In a preferred embodiment, retroreflective elements 201 have an arc of curvature that is curved toward transflective device 30, i.e., the center of curved retroreflective elements 201 is farther from transflective device 30 than the center of uncurved retroreflective elements 201; the retroreflective element 201 is curved toward the transflective device 30, when light rays passing through the transflective device 30 and transmitted at different angles are incident on the retroreflective element 201, the incident angles of different areas are different, and the area with a larger incident angle is a light ray at the edge of the retroreflective element 201, so that the retroreflective efficiency is poor, the curved retroreflective element 201 is beneficial to reducing the incident angle of the incident light ray on the retroreflective element 201, and the smaller the angle is, the better the retroreflective effect is, and the higher the imaging brightness of the holographic image RI is.

In a preferred embodiment, the display screen 10 is a display device that can emit light including a first linearly polarized state, such as a liquid crystal display that emits polarized light, or a light emitting diode display that emits unpolarized light (including a first linearly polarized state component); the phase retardation element 202 is an 1/4 wave plate, and can be disposed on the side of the retroreflective element 201 close to the transflective device 30; the transflective Film 302 is an optical element that can reflect the first linearly polarized light while transmitting the second linearly polarized light, and is, for example, a commercially available BEF Film (Brightness Enhancement Film) or DBEF Film (Dual Brightness Enhancement Film). The display screen 10 emits light including a first linear polarization state, which may be P-polarized light, and a second linear polarization state, which may be S-polarized light, i.e., the transflective device 30 reflects the P-polarized light and transmits the S-polarized light, the transflective device 30 has an average reflectivity for the P-polarized light of greater than 70%, preferably greater than 80%, and even greater than 90%, and an average transmissivity for the S-polarized light of greater than 70%, preferably greater than 80%, and even greater than 90%. After the P-polarized light is reflected by the transflective device 30, the reflected light is still P-polarized light, the light is converted into circularly polarized light after being transmitted and passing through the phase delay element 202, and the circularly polarized light continues to be transmitted to the retroreflective element 201 and exits in the opposite direction of the incident direction, and still is circularly polarized light; the circularly polarized light passes through the phase delay element 202 again and is converted into a second linearly polarized light, the polarization direction of the second linearly polarized light is perpendicular to the polarization direction of the first linearly polarized light, that is, when the first linearly polarized light is P-polarized light, the light passes through the 1/4 wave plate twice and is converted into S-polarized light in the second linearly polarized light, and the S-polarized light is emitted to the transflective device 30 and then is transmitted to the second space S2, so as to form a holographic image RI; the first linearly polarized light may also be S-polarized light, and the second linearly polarized light may also be P-polarized light, and the implementation manner is similar to the above process and is not described in detail again.

It should be noted that, the position of the phase delay element 202 in the embodiment of the present invention may be set according to actual conditions, for example, it may have a certain distance with the retro-reflective element 201, and may also be directly set on the surface of the retro-reflective element 201, i.e. attached to the surface of the retro-reflective element 201 in contact with the surface, so as to reduce the interference of the air layer between the phase delay element 202 and the retro-reflective element 201, improve the amount of light penetrating through the phase delay element 202, further improve the light efficiency, and brighten the holographic image RI.

In this embodiment, retroreflective element 201 includes a substrate 2011 and a plurality of retroreflective microstructures distributed on the substrate, wherein one or more reflections of incident light on the retroreflective microstructures are used to achieve the retroreflective effect, as shown in fig. 9 and 10. Therefore, in order to ensure high retroreflective efficiency, the retroreflective element 201 is further provided with a highly reflective coating 2012, the highly reflective coating 2012 is disposed in the area where the retroreflective microstructure and the substrate 2011 meet and reflect, and the reflectivity of the highly reflective coating 2012 is more than 60%, preferably more than 70%, 80% or 90%, and the highly reflective coating 2012 can be disposed by coating, bonding or integral molding; the highly reflective coating 2012 can improve the efficiency of each reflection of light on the retroreflective microstructure, thereby improving the retroreflective efficiency. It will be appreciated that retroreflective efficiency is determined by one or more reflections of light in retroreflection, which can be simply considered as a product of the multiple reflectivities, and thus increased reflectivity of light on each reflection of the retroreflective microstructures increases retroreflective efficiency.

In this embodiment, the retroreflective microstructures include at least one of a solid transparent right-angle vertex microstructure, a solid transparent spherical microstructure, or a hollow recessed right-angle vertex microstructure distributed on the surface of the substrate 2011, the positions and the embodiments of the substrate 2011 and the highly reflective coating 2012 are different according to the retroreflective microstructures of different embodiments, and the highly reflective coating 2012 may be attached to a surface of the retroreflective microstructure facing toward or away from the substrate 2011 or to a region where the retroreflective microstructure and the substrate 2011 are connected.

In an embodiment of the present invention, the retroreflective element 201 includes a substrate 2011 and microstructures distributed on the surface of the substrate 2011, a high reflective coating 2012 is disposed on the surface of the solid transparent microstructures contacting with the substrate 2011, fig. 9a shows a side view of the retroreflective element 201 including spherical retroreflective microstructures 320 of the solid transparent material, the retroreflective element 201 includes the substrate 2011, a plurality of spherical microstructures 2013 of the solid transparent material are distributed on the surface of the substrate 2011, and the high reflective coating 2012 is disposed on the surface of the solid transparent spherical microstructures 2013 contacting with the substrate 2011. When light enters the retroreflective element 201, the light is refracted into the solid transparent spherical microstructure 2013 and reflected on the highly reflective coating 2012 at the junction between the solid transparent spherical microstructure 2013 and the base material 2011, and the reflected light is refracted out of the solid transparent spherical microstructure 2013 and exits in the direction opposite to the incident light. Or, the solid transparent spherical microstructure 2013 further includes an ellipsoid-shaped microstructure, the process of retroreflection of light rays at the ellipsoid-shaped microstructure is similar to the above process, and is not repeated, and the retroreflection efficiency of the ellipsoid-shaped microstructure is slightly lower than that of the spherical microstructure.

Fig. 9b shows a side view of retroreflective element 201 comprising a solid transparent right-angled pyramidal apex microstructure 2014. Retroreflective element 201 includes substrate 2011, and substrate 2011 is light-transmitting structure, and the surface distribution of substrate 2011 is a plurality of solid transparent material's equilateral triangle awl right angle summit microstructure 2014, and the surface that solid transparent material's equilateral triangle awl right angle summit microstructure 2014 deviates from substrate 2011 is provided with high reflective coating 2012, specifically is that three mutually perpendicular's right angle triangle face department of solid transparent material's equilateral triangle awl is provided with high reflective coating 2012. When light enters the retroreflective element 201, the light is firstly refracted to enter the substrate 2011, and is transmitted to the inside of the regular-triangular-cone right-angle vertex microstructure 2014 of the solid transparent material through the substrate 2011, and three reflections are generated at three mutually-perpendicular right-angle triangular surfaces of the regular-triangular-cone right-angle vertex microstructure 2014 of the solid transparent material, so that the reflected light is refracted out of the retroreflective element 201 and is emitted in the direction opposite to the incident light; retroreflective element 201, which includes solid transparent triangular pyramid right-angled apex microstructure 2014, has very high front retroreflective efficiency, but when the incident light angle is large, the retroreflective efficiency is greatly attenuated.

Fig. 9c shows a side view of retroreflective element 201 comprising isosceles triangular pyramidal right angle apex microstructures 2015 of solid transparent material. Retroreflective element 201 includes substrate 2011, and substrate 2011 is the light-transmitting construction, and the surface distribution of substrate 2011 is a plurality of solid transparent material's isosceles triangular pyramid right angle summit microstructures 2015, and solid transparent material's isosceles triangular pyramid right angle summit microstructures 2015 deviates from the surface department of substrate 2011 and is provided with high reflective coating 2012, specifically is that solid transparent material's isosceles triangular pyramid's three mutually perpendicular's triangle face department is provided with high reflective coating 2012. When light enters the retroreflective element 201, the light is first refracted into the substrate 2011 and propagates through the substrate 2011 to the inside of the solid transparent isosceles triangular pyramid right-angle vertex microstructure 2015, and three reflections occur at three mutually perpendicular triangular faces of the solid transparent isosceles triangular pyramid right-angle vertex microstructure 2015, so that the reflected light refracts out of the retroreflective element 201 and exits in the direction opposite to the incident light. The front retroreflective efficiency of retroreflective element 201 comprising solid transparent isosceles triangular pyramid right-angle apex microstructures 2015 is lower than the reflective efficiency of retroreflective element 201 of solid transparent isosceles triangular pyramid right-angle apex microstructures 2014, but when the incident light angle is larger, the retroreflective efficiency is not greatly attenuated.

Fig. 9d shows a side view of retroreflective element 201 comprising cube-corner right-angle apex microstructures 2016 that are solid and transparent materials. The retroreflective element 201 comprises a base material 2011, wherein the base material 2011 is of a light-transmitting structure, a plurality of cube-cone right-angle vertex microstructures 2016 made of solid transparent materials are distributed on the surface of the base material 2011, a high-reflection coating 2012 is arranged on the surface of the cube-cone right-angle vertex microstructures 2016 made of the solid transparent materials, which deviates from the base material 2011, and specifically, the high-reflection coating 2012 is arranged on three mutually-perpendicular cube faces of a cube cone made of the solid transparent materials. When light enters the retroreflective element 201, the light is first refracted into the substrate 2011 and first propagates through the substrate 2011 to the inside of the solid transparent cubic cone right-angle vertex microstructure 2016, and three reflections occur at three mutually perpendicular cubic surfaces of the solid transparent cubic cone right-angle vertex microstructure 2016, so that the reflected light is refracted out of the retroreflective element 201 and exits in the direction opposite to the incident light.

In another embodiment of this embodiment, retroreflective element 201 includes substrate 2011 and hollow-recessed right-angle apex microstructures disposed on substrate 2011, and highly reflective coating 2012 is disposed on the recessed surface of the hollow-recessed right-angle apex microstructures facing away from substrate 2011. Fig. 10a shows a side view of a retroreflective element 201 comprising a hollow-depressed right cube corner microstructure 2017. the retroreflective element 201 comprises a substrate 2011, a plurality of hollow-depressed right cube corner microstructures 2017 are distributed on the surface of the substrate 2011, and a highly reflective coating 2012 is disposed on the depressed surface of the right cube corner microstructure 2017 facing away from the substrate 2011, specifically on three mutually perpendicular right cube corners of the right cube corner, and 2012 is disposed on the three mutually perpendicular right cube corners of the right cube corner. When light enters the retroreflective element 201, the light is transmitted to the inside of the hollow concave right-angled triangular pyramid vertex microstructure 2017, three times of reflection occurs at three mutually perpendicular right-angled triangular faces of the hollow concave right-angled triangular pyramid right-angled vertex microstructure 2017, and the reflected light is emitted in the direction opposite to the incident light; retroreflective elements 201 comprising hollow-depressed right-angled pyramidal apex microstructures 2017 exhibit very high front retroreflective efficiency, but suffer from a significant attenuation of retroreflective efficiency at higher incident light angles.

Fig. 10b shows a side view of retroreflective element 201 comprising hollow-recessed isosceles triangular pyramidal right angle apex microstructures 2018. The retroreflective element 201 comprises a substrate 2011, a plurality of hollow concave isosceles triangular cone right-angle vertex microstructures 2018 are distributed on the surface of the substrate 2011, a high-reflection coating 2012 is arranged on a concave surface of each hollow concave isosceles triangular cone right-angle vertex microstructure 2018 departing from the substrate 2011, and specifically, the high-reflection coating 2012 is arranged on three mutually vertical triangular surfaces of each hollow concave isosceles triangular cone. When light enters the retroreflective element 201, the light is transmitted to the inside of the hollow recessed isosceles triangular pyramid right-angle vertex microstructure 2018, three reflections occur at three mutually perpendicular triangular surfaces of the hollow recessed isosceles triangular pyramid right-angle vertex microstructure 2018, and the reflected light is emitted in the direction opposite to the incident light; retroreflective element 201 comprising hollow-depressed right-angled isosceles triangular pyramidal apex microstructures 2018 exhibits a front retroreflective efficiency that is less than the reflective efficiency of retroreflective element 201 comprising hollow-depressed right-angled triangular pyramidal microstructures 2017, but does not exhibit a significant reduction in retroreflective efficiency at higher incident light angles.

Fig. 10c shows a side view of retroreflective element 201 comprising hollow-depressed cube-corner right-angle apex microstructures 2019. The retroreflective element 201 includes a substrate 2011, a plurality of hollow concave cube-cone right-angle apex microstructures 2019 are distributed on the surface of the substrate 2011, and a high-reflection coating 2012 is arranged on a concave surface of the hollow concave cube-cone right-angle apex microstructures 2019 departing from the substrate 2011, specifically, the high-reflection coating 2012 is arranged on three mutually perpendicular cube surfaces of the hollow concave cube-cone. When light is incident on retroreflective element 201, it propagates into hollow depressed cube-corner apex microstructure 2019 and undergoes three reflections at the three mutually perpendicular cube faces of hollow depressed cube-corner apex microstructure 2019, with the reflected light exiting in the opposite direction to the incident light.

The embodiment of the utility model provides a holographic controlling means of elevator through setting up contrary reflective element 201 and phase delay component 202, can change the nature of light in contrary reflective light for as much as possible light can see through to pass through to reflect device 30 and then form holographic image RI, has improved the luminance of light utilization ratio and holographic image RI.

On the basis of the above embodiments of the present invention, as shown in fig. 1 and fig. 5, the display screen 10 is perpendicular to the transflective device 30, and refers to an angle formed by the above elements directly or an angle formed by extension lines of the above elements; the display screen 10 is perpendicular to the transflective device 30, and the included angle between the display screen 10 and the transflective device 30 is not limited to be 90 °, and specifically may be in an interval range of 90 ° ± 10 °, because the display screen 10 and the holographic image RI are symmetric about the transflective device 30, and therefore the display screen 10 is perpendicular or close to perpendicular to the transflective device 30, and the holographic image RI is also perpendicular or close to perpendicular to the transflective device 30, and the perpendicular holographic image RI is convenient for observation.

In this embodiment, the angle between the holographic imaging film 20 and the transflective device 30 may be 15 to 60 °, for example, the angle may be 15 °, 20 °, 25 °, 30 °, 35 °, 40 °, 45 °, 50 °, 55 °, or 60 °; the inclined holographic imaging film 20 is convenient for receiving light rays reflected by the transflective device 30 as much as possible, and the light rays are incident to the holographic imaging film 20 in a vertical or nearly vertical incident state as much as possible, so that the retroreflective efficiency is improved; meanwhile, the average height, the observation angle and the like of the user during observation are also considered, so that the eyes of the user, the holographic image RI and the holographic imaging film 20 are collinear as much as possible, and the observation effect of the holographic image RI can be improved.

On the basis of the above embodiment of the present invention, the elevator holographic control device further includes a peep-proof film, which is disposed on the light-emitting surface side of the display screen 10 and used for blocking the light of a predetermined angle; the embodiment of the utility model provides an elevator control is when using, and holographic image RI can be seen to the user, but if can also see the image that display screen 10 itself directly formed simultaneously, will influence the observation to holographic image RI, reduces to use and experiences. Therefore, in the embodiment, the peep-proof film is arranged to block the light rays which can be directly received by the user, and the visual angle of the light rays emitted by the display screen 10 is limited, so that the user can only observe the holographic image RI, and the use effect of the elevator holographic control device is improved; optionally, the privacy film comprises any privacy function enabling element of the prior art, such as a privacy grating.

The embodiment of the utility model provides a still provide an elevator, as shown in fig. 11a, including the holographic controlling means 100 of elevator described in any above-mentioned embodiment, still include the elevator railway carriage or compartment body 200 and the door body 300 that can open and shut, the holographic controlling means 100 of elevator sets up in the elevator railway carriage or compartment body 200 inside, specifically elevator railway carriage or compartment body 200 inner wall department; the elevator holographic control device 100 can be arranged at any position of the elevator car 200, preferably at the elevator car 200 connected with the openable door 300, so that a user can conveniently watch and touch the holographic image RI, and further control of the elevator is realized, including floor selection, door opening and closing, elevator running state watching and the like.

The utility model discloses on the basis of above-mentioned embodiment, still include the mounting, the mounting is fixed with the holographic controlling means 100 of elevator and is set up inside the elevator railway carriage or compartment body 200, can fix the holographic controlling means of elevator in its position of use department. The fixture may be disposed at the elevator holographic control device 100 and/or at an interior wall of the elevator car 200; alternatively, the fixture may be disposed within an interior wall of the elevator car 200, housing the housing 40 into the wall, leaving only the holographic image RI in the interior space of the elevator car 200; for example, the fixing member may be disposed at any position of the bottom, side or opening of the housing 40 as long as the holographic imaging light is not blocked or affected; the fixing piece comprises a clamping piece, a riveting piece, a locking piece (such as a screw locking piece) and other mechanical mechanisms which are convenient to assemble and disassemble; the fixed piece can also comprise a stable structure such as a welding piece, an adhesive piece and the like; the fixing member may also adopt a plurality of fixing structures, which is not limited in this embodiment.

In this embodiment, users with different heights or different use scenes may have different requirements on the position of the holographic image RI, and the holographic image RI needs to be adjusted by adjusting the position of the elevator holographic control device 100, for example, when the users have different heights, the holographic image RI formed by observing the elevator holographic control device 100 at the same position may not be completely observed in some cases; for example, the user wants to orient the holographic elevator control device 100 toward himself, which facilitates better observation and touch of the holographic image RI. Furthermore, the fixing part also comprises at least one of a lifting mechanism, a rotating mechanism or a translation mechanism, and the fixing part can drive the whole elevator holographic control device to carry out at least one adjustment mode of lifting, rotating or translating while fixing the shell 40, so that the use experience of the elevator holographic control device is further improved; through further setting up elevating system, rotary mechanism or translation mechanism, the user can adjust elevator holographic control device's position, angle and height etc. according to the use habit, further promotes elevator holographic control device's application scope and uses and experience.

Optionally, the lifting mechanism comprises at least one of a rocker, a lead screw, a pulley block, a hydraulic/pneumatic lifting structure, a gear set lifting structure or a worm and gear lifting structure; the rotating mechanism comprises at least one of a spiral rotating mechanism, a cam rotating mechanism, a crank rotating mechanism, a holder or a rotating shaft rotating structure; the translation mechanism comprises at least one of a sliding rail sliding block mechanism, a gear transmission mechanism or a gear rack transmission mechanism, and the mechanism can be driven by power (such as manual driving or mechanical driving) to adjust the holographic control device of the elevator, so that the position of the holographic image RI can be adjusted.

The utility model discloses on the basis of above-mentioned embodiment, still include controller and touch collector, elevator holographic controlling means 100 and touch collector all are connected with the controller electricity. The controller controls the display screen 10 to display images, and further controls the elevator holographic control device to display holographic images RI; specifically, the controller may be disposed inside the housing 40, and receive or collect elevator control information, and control the display screen 10 to display an image, for example, the controller may be a rigid-flexible board, a Central Processing Unit (CPU), or a control chip, for example, the controller controls the display screen 10 to display elevator control information, and then the elevator holographic control device may display a holographic image RI including corresponding content; the controller may not be disposed inside the housing 40, for example, the controller may be an elevator control device, and is electrically connected to the display screen 10 wirelessly or by wire in a USB, OBD, or bluetooth manner, so as to transmit the content to be displayed, such as control information, advertisement, etc., to the display screen 10, the display screen 10 displays the corresponding content, and the elevator holographic control device forms the corresponding holographic image RI for the user to view and control. By arranging the controller, the working state (displaying the holographic image RI) and the non-working state (not displaying the holographic image RI) of the holographic device of the elevator can be controlled, and the display content of the holographic image RI can also be controlled.

In this embodiment, the touch collector is used for collecting at least one of voice information or touch information in the elevator. For example, the touch collector comprises voice collecting equipment such as a microphone and the like, and collects voice information of people in the elevator; for example, the touch collector includes an infrared touch collecting device, a visible light touch collecting device, and the like, and collects touch information of the person in the elevator on the holographic image RI, for example, a floor button icon in the holographic image RI of the finger motor of the user; and the information is transmitted to the controller in a wired or wireless mode, and the controller processes and feeds back the information, so that the next operation of personnel in the elevator is facilitated. For example, a person in the elevator sends a voice command of closing the holographic image, the touch collector collects and sends the voice command to the controller, the controller controls the display screen 10 to be closed, and the holographic image RI is not displayed at this time. For example, a person in the elevator touches a floor 5 icon on the holographic image RI, the touch collector collects and sends the floor 5 icon to the controller, and the controller controls the display screen 10 to display the highlighted floor 5 icon and controls the elevator to run to the floor 5.

The embodiment of the utility model provides an in, through setting up controller and touch collector, can control elevator holographic controlling means's state, convenience of customers uses, to user's gesture instruction or voice command and make the feedback, adjusts holographic image RI's display state, and then changes the running state of elevator, further the practicality of elevator.

The utility model discloses on the basis of above-mentioned embodiment, still include the audio amplifier, the audio amplifier is connected with the controller electricity, and control audio amplifier makes a sound. Optionally, the sound box can be arranged in the shell 40, and the integrated device is more convenient to use, disassemble and assemble; the loudspeaker box can also be a loudspeaker box of an elevator. The sound box can be matched with the display content of the display screen 10, the holographic image is displayed, and meanwhile, the sound box makes sound, so that the use experience can be further improved; for example, the display screen 10 displays that the user selects the floor 5, at this time, the holographic image RI also displays corresponding information, the elevator runs to the floor 5, and the sound box sends out voice information of "floor 5 arrived", and the voice is used for assisting in reminding, so that the use effect and the use experience of the elevator holographic control device are further improved.

The utility model discloses on the basis of the above-mentioned embodiment, as shown in fig. 11b, the elevator includes at least one elevator holographic controlling means 100, fig. 11b is the plan view of elevator traffic direction cross section, can see out, elevator holographic controlling means 100 can install in the different positions department of the internal wall body of elevator railway carriage or compartment body 200, form holographic image RI, holographic image RI shows elevator control information at least, still can show advertisement etc., the mode of user's accessible non-direct contact entity button, through touching and control to holographic image RI, with the control to elevator running state of realizing at least, the health hidden danger that uses entity button control elevator to bring has been avoided.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. An elevator holographic control device, which is used for controlling an elevator in a non-contact mode, is characterized by comprising: the device comprises a display screen, a holographic imaging film, a transflective device and a shell;

the shell comprises an accommodating cavity and an opening, the transflective device is arranged at the opening, and the display screen and the holographic imaging film are arranged in the accommodating cavity;

the display screen at least displays control information of the elevator and emits light;

the light rays are transmitted to the transflective device and reflected, the reflected light rays are emitted to the holographic imaging film, the emitted light rays are transmitted in the opposite direction of incidence to the holographic imaging film and penetrate through the transflective device, and a holographic image at least comprising the control information is formed on one side of the transflective device far away from the accommodating cavity.

2. The holographic elevator control device of claim 1, wherein the display screen comprises: a light source, a backlight assembly and an image display layer;

and the light rays emitted by the light source are transmitted to the image display layer after passing through the backlight assembly, and at least the light rays comprising the control information are generated.

3. The holographic elevator control device of claim 1, wherein the transflective device comprises: the transparent substrate and the transflective film are attached to one side surface of the transparent substrate;

the transflective film is used for reflecting the light rays emitted by the display screen and transmitting the light rays emitted by the holographic imaging film.

4. The holographic elevator control device of claim 3, wherein the transflective device further comprises: the absorption film is attached to one side, far away from the display screen, of the transflective film;

the absorption film is used for absorbing light rays which are not emitted by the holographic imaging film.

5. The holographic elevator control device of claim 1, wherein the holographic imaging film comprises:

retroreflective elements for propagating light incident thereto in a direction opposite to the incident direction;

phase retarding elements disposed between the retroreflective elements and the transflective device for altering the phase of light passing therethrough, the phase retarding elements disposed in abutting relation with the retroreflective elements.

6. The holographic elevator control device of claim 1, in which the display screen is perpendicular to the transflective device.

7. Elevator, characterized in that it comprises the holographic elevator control of any of claims 1-6, further comprising: an elevator car body and an openable door body;

the elevator holographic control device is arranged in the elevator car body.

8. The elevator according to claim 7, further comprising: the fixing piece is used for fixedly arranging the elevator holographic control device in the elevator car body.

9. The elevator of claim 8, wherein the securing member comprises at least one of an adhesive, a snap, a lock, and a rivet.

10. The elevator according to claim 7, further comprising: the elevator holographic control device comprises a controller and a touch collector, wherein the elevator holographic control device and the touch collector are electrically connected with the controller.