CN110320731B - Multimedia device and robot - Google Patents

Multimedia device and robot Download PDF

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Publication number
CN110320731B
CN110320731B CN201910659660.3A CN201910659660A CN110320731B CN 110320731 B CN110320731 B CN 110320731B CN 201910659660 A CN201910659660 A CN 201910659660A CN 110320731 B CN110320731 B CN 110320731B
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Prior art keywords
light
lens
module
light source
projection
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CN201910659660.3A
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Chinese (zh)
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CN110320731A (en
Inventor
杜长运
熊友军
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Shenzhen Ubtech Technology Co ltd
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Shenzhen Ubtech Technology Co ltd
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Priority to CN201910659660.3A priority Critical patent/CN110320731B/en
Publication of CN110320731A publication Critical patent/CN110320731A/en
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/005—Projectors using an electronic spatial light modulator but not peculiar thereto
    • G03B21/006—Projectors using an electronic spatial light modulator but not peculiar thereto using LCD's
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/005—Projectors using an electronic spatial light modulator but not peculiar thereto
    • G03B21/008—Projectors using an electronic spatial light modulator but not peculiar thereto using micromirror devices
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2013—Plural light sources
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2033—LED or laser light sources
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/206—Control of light source other than position or intensity
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2066—Reflectors in illumination beam

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Projection Apparatus (AREA)

Abstract

The invention is suitable for the technical field of robots, and provides a multimedia device and a robot, wherein the multimedia device comprises a shell, a projection module, a display module and a light source module, wherein the projection module, the display module and the light source module are arranged in the shell, and the multimedia device comprises: a transparent area is arranged on the shell; the projection module with the display module all activity sets up in the casing to make projection module be located light path of light source module and projection module's light-emitting side just to transparent region, perhaps, display module is located light path of light source module and display module's light-emitting side just to transparent region. The projection mode and the display mode of the invention are integrated together and can be freely switched, thus expanding the functional application; meanwhile, the projection module and the display module share one light source module, so that the multimedia device is higher in integration level and more compact in overall structure.

Description

Multimedia device and robot
Technical Field
The invention relates to the technical field of robots, in particular to a multimedia device and a robot.
Background
Currently, a projection device and a display device are generally used as two independent devices, wherein the projection device only has a projection function, and the display device only has a display function. When the projection and display device is required to be applied to projection and display in some scenes, the projection device and the display device are required to be arranged at the same time, the projection device and the display device are both provided with certain volumes and occupy certain space, and the projection device and the display device cannot be accommodated at the same time in some scenes with high requirements on space utilization rate.
Disclosure of Invention
The invention aims to provide a multimedia device, aiming at solving the technical problem that the occupied space of equipment is large when projection and display are needed at present.
The invention is realized in such a way that a multimedia device comprises a shell, a projection module, a display module and a light source module, wherein the projection module, the display module and the light source module are arranged in the shell, and the multimedia device comprises:
a transparent area is arranged on the shell;
the projection module with the display module all activity set up in the casing, so that projection module is located light source module's light path just projection module's light-emitting side is just right transparent region, perhaps, display module is located light source module's light path just display module's light-emitting side is just right transparent region.
In an embodiment of the present invention, two transparent regions are disposed on a surface of one side of the housing, and the multimedia device includes two projection modules, two display modules, and two light source modules, where the projection modules, the display modules, and the light source modules respectively correspond to the transparent regions one to one.
In one embodiment of the present invention, the light source module includes:
a blue LED light source for emitting blue light;
the first lens is arranged on a light path of the blue LED light source and is used for converging the blue light;
a green LED light source for emitting green light;
the second lens is arranged on the light path of the green LED light source and is used for converging the green light;
a red LED light source for emitting red light;
the third lens is arranged on a light path of the red LED light source and is used for converging the red light;
the first optical filter is arranged on one side of the first lens, which is far away from the blue LED light source, and is arranged on one side of the second lens, which is far away from the green LED light source, and is used for transmitting the blue light converged by the first lens and reflecting the green light converged by the second lens;
the fourth lens is arranged on one side, far away from the first lens, of the first optical filter and is used for converging the blue light transmitted by the first optical filter and the green light reflected by the first optical filter;
the second optical filter is arranged on one side, far away from the first optical filter, of the fourth lens and is positioned on one side, far away from the red LED light source, of the third lens, and the second optical filter is used for transmitting the blue light and the green light converged by the fourth lens and reflecting the red light converged by the third lens;
the fifth lens is arranged on one side, far away from the fourth lens, of the second optical filter and used for converging the blue light and the green light transmitted by the second optical filter and the red light reflected by the second optical filter; and
the first reflector plate is arranged on one side of the fifth lens, which is far away from the second optical filter, and is used for receiving the light rays converged by the fifth lens and reflecting the light rays to the projection module or the display module.
In another embodiment of the present invention, the light source module includes a white LED light source and an RGB three-color wheel disposed on a light path of the white LED light source.
In one embodiment of the present invention, the display module includes:
a first prism;
the second reflector plate is attached to the surface of the first prism; and
the liquid crystal display screen is arranged on one side of the first prism;
the light reflected by the first reflector plate is refracted to enter the first prism, and is reflected by the second reflector plate and the first prism to enter the liquid crystal display screen after being totally reflected.
In one embodiment of the invention, the projection module comprises:
a second prism;
the digital micromirror device is attached to the surface of the second prism; and
the lens component is arranged on one side of the second prism;
the light reflected by the first reflector plate is refracted to enter the second prism, reflected by the digital micromirror device and totally reflected by the second prism and then enters the lens assembly, and the lens assembly is used for converging and diverging the light totally reflected by the second prism.
In one embodiment of the present invention, the lens assembly includes a sixth lens and a seventh lens sequentially disposed along an optical path, wherein:
the sixth lens is used for converging the light totally reflected by the second prism;
the seventh lens is used for diffusing the light rays converged by the fifth lens.
In one embodiment of the present invention, the fifth lens is a fly-eye lens.
In an embodiment of the present invention, the multimedia device further includes a driving component disposed in the housing, and the driving component is configured to drive the projection module or the display module to move, so that the projection module or the display module is located on the light path of the light source module and the light emitting side of the projection module or the display module faces the transparent area.
In an embodiment of the present invention, the driving assembly includes a driving mechanism and a turntable, which are disposed in the housing, the driving mechanism is connected to the turntable and is configured to drive the turntable to rotate, the projection module and the display module are mounted on the turntable along a circumferential direction of the turntable, the turntable drives the projection module to rotate on the light path of the light source module and enables the light emitting side of the projection module to face the transparent area when rotating, or the turntable drives the display module to rotate on the light path of the light source module and enables the light emitting side of the display module to face the transparent area when rotating.
In another embodiment of the present invention, the driving assembly includes a driving mechanism disposed in the housing and an assembly rack connected to an output end of the driving mechanism, the projection module and the display module are disposed on the assembly rack at intervals along a length direction of the assembly rack, and the driving mechanism is configured to drive the assembly rack to ascend and descend, and drive the projection module or the display module to move to a light path of the light source module, so that a light emitting side of the projection module or the display module faces the transparent area.
It is another object of the present invention to provide a robot comprising a body structure and a multimedia device connected to said body structure and as described in any of the above embodiments.
The multimedia device and the robot of the invention at least have the following beneficial effects: because the projection module and the display module are movably arranged in the shell, the projection module and the display module can be switched with each other, namely the projection module is positioned on the light path of the light source module, the light emitting side of the projection module is opposite to the transparent area, and the projection module is used as a projection mode at the moment, the display module is positioned on the light path of the light source module, the light emitting side of the display module is opposite to the transparent area, and the display module is used as a display mode at the moment; meanwhile, the projection module and the display module share one light source module, so that the multimedia device is higher in integration level and more compact in overall structure.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic optical path diagram of a projection module, a display module and a light source module of a multimedia device according to an embodiment of the present invention.
Reference numerals referred to in the above figures are detailed below:
10-a light source module; 11-blue LED light source; 12-a first lens; 13-green LED light source; 14-a second lens; 15-red LED light source; 16-a third lens; 17-a first optical filter; 18-a fourth lens; 19-a second optical filter; 101-a fifth lens; 102-a first reflector sheet; 20-a display module; 21-a first prism; 22-a second reflector sheet; 23-liquid crystal display screen; 30-a projection module; 31-a second prism; 32-digital micromirror device; 33-a lens assembly; 331-a sixth lens; 332-seventh lens.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
In order to explain the technical solution of the present invention, the following detailed description is made with reference to the specific drawings and examples.
Embodiments of the present invention provide a multimedia device, which can be applied to a scene requiring a projection mode and a display mode, especially a head structure of a robot, and the following describes the present invention in detail by applying the multimedia device to the head structure of the robot. It should be noted that the multimedia device of the present invention is not limited to be used in a robot head structure, but can be used in other scenes where it is necessary to apply to a projection mode and a display mode.
Referring to fig. 1, the multimedia device includes a housing, and a projection module 30, a display module 20 and a light source module 10 disposed in the housing. Wherein a transparent area is provided on the housing for exposing the display module 20 so that the display module 20 can be used as an eye of the robot, and for exposing the projection module 30 so that the projection module 30 can perform a projection work. The projection module 30 and the display module 20 are movably disposed in the housing, that is, the projection module 30 and the display module 20 are both movable in the housing, so that the projection module 30 is located on the light path of the light source module 10 and the light emitting side of the projection module 30 is opposite to the transparent area, or the display module 20 is located on the light path of the light source module 10 and the light emitting side of the display module 20 is opposite to the transparent area. In the present embodiment, the projection module 30 is configured to receive the light emitted from the light source module 10 and emit the light to project an image, and the display module 20 is configured to receive the light emitted from the light source module 10 and display the image.
In this embodiment, since the projection module 30 and the display module 20 are both movably disposed in the housing, the projection module 30 and the display module 20 can be switched with each other, that is, the projection module 30 can be located on the light path of the light source module 10, and the light-emitting side of the projection module 30 faces the transparent area, and at this time, the projection module is used as a projection mode, or the display module 20 can be located on the light path of the light source module 10, and the light-emitting side of the display module 20 faces the transparent area, and at this time, the projection module and the eye mode can be freely switched, and at this time, the transparent area on one head housing can be shared without performing an additional transparent area on the head housing, so that the number of transparent areas on the head of the robot is saved, the robot is more beautiful, and the scientific and technological sense is stronger; meanwhile, since the projection module 30 and the display module 20 share one transparent region and one light source module 10, the multimedia device has a higher integration level and a more compact overall structure.
In an embodiment of the present invention, two transparent regions are disposed on one side surface of the housing, in this case, the multimedia device includes two projection modules 30, two display modules 20, and two light source modules 10 disposed in the housing, wherein the projection modules 30, the display modules 20, and the light source modules 10 respectively correspond to the transparent regions one to one. That is, one projection module 30, one display module 20, and one light source module 10 correspond to one transparent region. In the present embodiment, when the two display modules 20 are exposed to the corresponding transparent regions, respectively, they serve as two eyes of the robot; when the two projection modules 30 are exposed in the corresponding transparent regions, respectively, they are used as two projectors, and at this time, a 3D movie can be played, and projection splicing can be also composed to reduce transmittance and TV distortion.
In another embodiment of the present invention, a transparent region may be provided on one side surface of the housing, and accordingly, the multimedia device includes a projection module 30, a display module 20 and a light source module 10 which are provided in the housing.
In particular applications, the shape of the transparent region includes, but is not limited to, circular, elliptical, and the like.
In one embodiment of the present invention, the light source module 10 includes a blue LED light source 11, a first lens 12, a green LED light source 13, a second lens 14, a red LED light source 15, a third lens 16, a first filter 17, a fourth lens 18, a second filter 19, a fifth lens 101, and a first reflective sheet 102. Wherein:
the blue LED light source 11 is used for emitting blue light, and a blue LED chip may be specifically used;
the first lens 12 is disposed on the light path of the blue LED light source 11 and is configured to converge the blue light emitted by the blue LED light source 11;
the green LED light source 13 is used for emitting green light, and a green LED chip may be specifically used;
the second lens 14 is disposed on the light path of the green LED light source 13 and is configured to converge green light emitted by the green LED light source 13;
the red LED light source 15 is used for emitting red light, and a red LED chip may be specifically used;
the third lens 16 is disposed on the light path of the red LED light source 15 and is configured to converge the red light emitted by the red LED light source 15;
the first optical filter 17 is disposed on one side of the first lens 12 away from the blue LED light source 11, and is located on one side of the second lens 14 away from the green LED light source 13, the first optical filter 17 is configured to transmit the blue light converged by the first lens 12, and is further configured to reflect the green light converged by the second lens 14, so that the blue light and the green light are converged on one side of the first optical filter 17 away from the first lens 12 to form a first mixed light;
the fourth lens 18 is disposed on a side of the first optical filter 17 away from the first lens 12, and is configured to converge the blue light transmitted through the first optical filter 17 and the green light reflected by the first optical filter 17, that is, to converge the first mixed light;
the second optical filter 19 is disposed on a side of the fourth lens 18 away from the first optical filter 17, and is located on a side of the third lens 16 away from the red LED light source 15, where the second optical filter 19 is configured to transmit the blue light and the green light (first mixed light) converged by the fourth lens 18, and is further configured to reflect the red light converged by the third lens 16, so that the blue light, the green light, and the red light are converged on a side of the second optical filter 19 away from the fourth lens 18 to form a second mixed light;
the fifth lens 101 is disposed on a side of the second filter 19 away from the fourth lens 18, and is configured to collect the blue light and the green light transmitted by the second filter 19, and the red light reflected by the second filter 19, that is, the fifth lens 101 is configured to collect the second mixed light;
the first reflector 102 is disposed on a side of the fifth lens 101 away from the second filter 19, and is configured to change an angle of the light, so that the light exits at a certain angle, specifically, the first reflector 102 is configured to receive the light (the second mixed light) converged by the fifth lens 101 and reflect the light to the projection module 30 or the display module 20.
In the present embodiment, the first optical filter 17 and the second optical filter 19 are disposed in parallel, and with respect to the left-right direction in fig. 1, the first optical filter 17 and the second optical filter 19 are both disposed obliquely to the right, so that the light incident in the 9 o 'clock direction (e.g. the blue light converged by the first lens 12, or the first mixed light converged by the fourth lens 18) can be transmitted, and the light incident in the 6 o' clock direction (e.g. the green light converged by the second lens 14, or the red light converged by the third lens 16) can be reflected. Wherein, the 9 o 'clock direction and the 6 o' clock direction are based on the scale direction on the clock.
In a specific application, the proportion of the three colors of light emitted by the blue LED light source 11, the green LED light source 13 and the red LED light source 15 can be regulated by duty ratio or current, and will not be described in detail herein.
Preferably, the fifth lens 101 is a fly-eye lens, and the fly-eye lens, the fourth lens 18, and the first lens 12 are coaxially disposed. Among them, the fly-eye lens is formed by a series of small lens combinations, and has wide application in the fields of micro display and projection display.
In another embodiment of the present invention, the light source module 10 includes a white LED light source and an RGB three-color wheel, wherein the white LED light source is used for emitting white light, the RGB three-color wheel is disposed on a light path of the white LED light source, and the RGB three-color wheel is in a state of rotating at a high speed when in use, so that only one color of light is transmitted at a time. In the embodiment, the RGB three color wheel may adopt a currently-used structure, and will not be described in detail herein.
In one embodiment of the present invention, the display module 20 is an LCD module, and particularly, the display module 20 includes a first prism 21, a second reflective sheet 22, and a liquid crystal display 23. Wherein:
the first prism 21 can be a right-angle prism, which includes an inclined plane and a first right-angle surface and a second right-angle surface perpendicular to each other;
the second reflector plate 22 is attached to the first right-angle surface of the first prism 21, and the second reflector plate 22 is used for changing the angle of the light rays so that the light rays are emitted at a certain angle;
the liquid crystal display 23 is disposed at one side of the second right-angle surface of the first prism 21, and has a certain distance with the second right-angle surface of the first prism 21.
In this embodiment, the light reflected by the first reflecting sheet 102 is refracted by the inclined surface of the first prism 21, enters the first prism 21, is reflected by the second reflecting sheet 22 and totally reflected by the inclined surface of the first prism 21, enters the liquid crystal display 23, and passes through the liquid crystal display 23 to display an image.
In one embodiment of the present invention, the projection module 30 is a DMD (Digital Micromirror Device) module, and the projection module 30 includes a second prism 31, a Digital Micromirror Device 32 and a lens assembly 33. Wherein:
the second prism 31 can be a right-angle prism, which includes an inclined plane and a first right-angle surface and a second right-angle surface perpendicular to each other;
the digital micro-mirror device 32 is attached to the first right-angle surface of the second prism 31, the digital micro-mirror device 32 is an array formed by a plurality of high-speed digital light reflection switches, and the digital micro-mirror device has high reflectivity and high contrast;
the lens assembly 33 is disposed at one side of the second right-angle surface of the second prism 31 and has a certain distance with the second right-angle surface of the second prism 31, and the lens assembly 33 is used for converging and diverging light.
In this embodiment, the light reflected by the first reflecting sheet 102 is refracted by the inclined surface of the second prism 31 to enter the second prism 31, and is reflected by the dmd 32 and totally reflected by the inclined surface of the second prism 31 to enter the lens assembly 33, and the lens assembly 33 is used to converge and diverge the light totally reflected by the inclined surface of the second prism 31.
It is understood that in other embodiments of the present invention, the projection module 30 may also be an lcos (liquid Crystal on silicon) module or the like.
In one embodiment of the present invention, the lens assembly 33 includes a sixth lens 331 and a seventh lens 332 disposed in sequence along the optical path. The sixth lens 331 is configured to collect the light totally reflected by the inclined surface of the second prism 31, and the seventh lens 332 is configured to diffuse the light collected by the fifth lens 101.
In an embodiment of the present invention, the multimedia device further includes a driving component disposed in the housing, and the driving component is configured to drive the projection module 30 or the display module 20 to move, so that the projection module 30 is located on the light path of the light source module 10 and the light emitting side of the projection module 30 faces the transparent area, or so that the display module 20 is located on the light path of the light source module 10 and the light emitting side of the display module 20 faces the transparent area.
In one embodiment of the present invention, the display module 20 and the projection module 30 are switchable with each other within the housing. Specifically, drive assembly is including setting up actuating mechanism and the carousel in the casing, wherein, actuating mechanism is connected with the carousel and is used for driving the carousel to rotate, projection module 30 and display module 20 are installed on the carousel along the circumference of carousel, can drive projection module 30 and display module 20 to rotate together when the carousel rotates, and then make projection module 30 rotate to light source module 10's light path and make projection module 30's light-emitting side just to transparent area, or make display module 20 rotate to light source module 10's light path and make display module 20's light-emitting side just to transparent area. In the present embodiment, switching between the eye mode and the projection mode is achieved by rotation of the dial. In a particular application, the drive mechanism may be a motor.
In another embodiment of the present invention, in order to realize the switching between the display module 20 and the projection module 30, the driving assembly includes a driving mechanism and a mounting bracket disposed in the housing, the mounting bracket is connected to an output end of the driving mechanism, the projection module 30 and the display module 20 are disposed on the mounting bracket at intervals along a length direction of the mounting bracket, the driving mechanism is configured to drive the mounting bracket to move up and down, and further drive the projection module 30 and the display module 20 to move together, for example, the driving mechanism drives the mounting bracket to move up and down by a first distance, so that the projection module 30 moves to the optical path of the light source module 10 and the light-emitting side of the projection module 30 faces the transparent area; the driving mechanism drives the mounting bracket to ascend and descend by a second distance, so that the display module 20 moves to the light path of the light source module 10 and the light emitting side of the display module 20 faces the transparent area. In this embodiment, the drive mechanism may be an electric push rod.
Of course, in other embodiments, the display module 20 and the projection module 30 may also adopt other structures that can realize free switching, and are not limited to the above structures.
Based on the same concept, the embodiment of the invention also provides a robot, which comprises a body structure and a multimedia device connected with the body structure, wherein the multimedia device is the multimedia device according to any one of the embodiments. In the present embodiment, the multimedia device is used for a head structure of a robot.
The invention is not to be considered as limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.

Claims (12)

1. A multimedia device, comprising a housing, and a projection module, a display module and a light source module disposed in the housing, wherein:
a transparent area is arranged on the shell;
projection module with display module all activity set up in the casing, projection module with can switch each other between the display module and share one transparent region and one light source module, so that projection module is located light source module's light path just projection module's light-emitting side is just right transparent region, perhaps, display module is located light source module's light path just display module's light-emitting side is just right transparent region.
2. The multimedia device as claimed in claim 1, wherein two transparent regions are provided on one side surface of the housing, the multimedia device includes two projection modules, two display modules, and two light source modules, wherein the projection modules, the display modules, and the light source modules correspond to the transparent regions one to one, respectively.
3. The multimedia device of claim 1, wherein the light source module comprises:
a blue LED light source for emitting blue light;
the first lens is arranged on a light path of the blue LED light source and is used for converging the blue light;
a green LED light source for emitting green light;
the second lens is arranged on the light path of the green LED light source and is used for converging the green light;
a red LED light source for emitting red light;
the third lens is arranged on a light path of the red LED light source and is used for converging the red light;
the first optical filter is arranged on one side of the first lens, which is far away from the blue LED light source, and is arranged on one side of the second lens, which is far away from the green LED light source, and is used for transmitting the blue light converged by the first lens and reflecting the green light converged by the second lens;
the fourth lens is arranged on one side, far away from the first lens, of the first optical filter and is used for converging the blue light transmitted by the first optical filter and the green light reflected by the first optical filter;
the second optical filter is arranged on one side, far away from the first optical filter, of the fourth lens and is positioned on one side, far away from the red LED light source, of the third lens, and the second optical filter is used for transmitting the blue light and the green light converged by the fourth lens and reflecting the red light converged by the third lens;
the fifth lens is arranged on one side, far away from the fourth lens, of the second optical filter and used for converging the blue light and the green light transmitted by the second optical filter and the red light reflected by the second optical filter; and
the first reflector plate is arranged on one side of the fifth lens, which is far away from the second optical filter, and is used for receiving the light rays converged by the fifth lens and reflecting the light rays to the projection module or the display module.
4. The multimedia apparatus as claimed in claim 1, wherein the light source module comprises a white LED light source and a RGB three color wheel disposed on an optical path of the white LED light source.
5. The multimedia device of claim 3, wherein the display module comprises:
a first prism;
the second reflector plate is attached to the surface of the first prism; and
the liquid crystal display screen is arranged on one side of the first prism;
the light reflected by the first reflector plate is refracted to enter the first prism, and is reflected by the second reflector plate and the first prism to enter the liquid crystal display screen after being totally reflected.
6. The multimedia device of claim 3, wherein the projection module comprises:
a second prism;
the digital micromirror device is attached to the surface of the second prism; and
the lens component is arranged on one side of the second prism;
the light reflected by the first reflector plate is refracted to enter the second prism, reflected by the digital micromirror device and totally reflected by the second prism and then enters the lens assembly, and the lens assembly is used for converging and diverging the light totally reflected by the second prism.
7. The multimedia apparatus of claim 6, wherein the lens assembly comprises a sixth lens and a seventh lens disposed in sequence along the optical path, wherein:
the sixth lens is used for converging the light totally reflected by the second prism;
the seventh lens is used for diffusing the light rays converged by the fifth lens.
8. The multimedia device according to claim 3, wherein the fifth lens is a fly-eye lens.
9. The multimedia device according to any one of claims 1 to 8, further comprising a driving component disposed in the housing, wherein the driving component is configured to drive the projection module or the display module to move, so that the projection module or the display module is located on the light path of the light source module and the light emitting side of the projection module or the display module faces the transparent area.
10. The multimedia device as claimed in claim 9, wherein the driving assembly includes a driving mechanism and a turntable disposed in the housing, the driving mechanism is connected to the turntable and configured to drive the turntable to rotate, the projection module and the display module are mounted on the turntable along a circumferential direction of the turntable, the turntable drives the projection module to rotate on the light path of the light source module and enables the light emitting side of the projection module to face the transparent area when the turntable rotates, or the turntable drives the display module to rotate on the light path of the light source module and enables the light emitting side of the display module to face the transparent area when the turntable rotates.
11. The multimedia device as claimed in claim 9, wherein the driving assembly includes a driving mechanism disposed in the housing and a mounting bracket connected to an output end of the driving mechanism, the projection module and the display module are disposed on the mounting bracket at intervals along a length direction of the mounting bracket, and the driving mechanism is configured to drive the mounting bracket to move up and down, and drive the projection module or the display module to move to a light path of the light source module and make a light emitting side of the projection module or the display module directly face the transparent area.
12. A robot comprising a body structure and a multimedia device connected to the body structure and according to any of claims 1 to 11.
CN201910659660.3A 2019-07-22 2019-07-22 Multimedia device and robot Active CN110320731B (en)

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JPH0749533A (en) * 1994-06-16 1995-02-21 Casio Comput Co Ltd Projector device
CN102804057A (en) * 2009-06-11 2012-11-28 Lg伊诺特有限公司 Projection system
CN104090454A (en) * 2014-08-06 2014-10-08 *** Projection optical engine
CN105301876A (en) * 2015-08-24 2016-02-03 俞茂学 Projection method for intelligent projection robot, and robot employing projection method
CN206421139U (en) * 2016-12-05 2017-08-18 包涵 A kind of two acts of projecting apparatus of a machine

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Publication number Priority date Publication date Assignee Title
JPH0749533A (en) * 1994-06-16 1995-02-21 Casio Comput Co Ltd Projector device
CN102804057A (en) * 2009-06-11 2012-11-28 Lg伊诺特有限公司 Projection system
CN104090454A (en) * 2014-08-06 2014-10-08 *** Projection optical engine
CN105301876A (en) * 2015-08-24 2016-02-03 俞茂学 Projection method for intelligent projection robot, and robot employing projection method
CN206421139U (en) * 2016-12-05 2017-08-18 包涵 A kind of two acts of projecting apparatus of a machine

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