CN111198488B - Mobile phone screen playing device based on holographic image technology - Google Patents

Mobile phone screen playing device based on holographic image technology Download PDF

Info

Publication number
CN111198488B
CN111198488B CN201911348531.9A CN201911348531A CN111198488B CN 111198488 B CN111198488 B CN 111198488B CN 201911348531 A CN201911348531 A CN 201911348531A CN 111198488 B CN111198488 B CN 111198488B
Authority
CN
China
Prior art keywords
display device
rack
holographic
mobile phone
tray
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201911348531.9A
Other languages
Chinese (zh)
Other versions
CN111198488A (en
Inventor
梁栋
丁力
黄明
张陈
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu University of Technology
Original Assignee
Jiangsu University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu University of Technology filed Critical Jiangsu University of Technology
Priority to CN201911348531.9A priority Critical patent/CN111198488B/en
Publication of CN111198488A publication Critical patent/CN111198488A/en
Application granted granted Critical
Publication of CN111198488B publication Critical patent/CN111198488B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/22—Processes or apparatus for obtaining an optical image from holograms
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
    • G03H2001/0208—Individual components other than the hologram
    • G03H2001/0232—Mechanical components or mechanical aspects not otherwise provided for

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Holo Graphy (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)

Abstract

本发明属于全息影像播放装置技术领域，具体而言，涉及一种基于全息影像技术的手机屏幕播放装置，包括L形机架、调节装置、显示装置和托盘，其中上述机架上设有上述调节装置，调节装置和上述显示装置相连，使得显示装置垂直位于机架正上方，且调节装置可对显示装置的倾斜角度进行调节，上述托盘和机架卡接，且托盘可在机架中滑动，使得托盘上的上述手机可位于显示装置正下方。本发明结构简单、使用方便，通过对拨杆上的旋钮可对显示装置倾斜角度进行装置，解决了现有播放装置中显示装置不易调节的难题，播放处的立体图像更加清晰、逼真，提高了全息投影效果的可观赏性。

Figure 201911348531

The invention belongs to the technical field of holographic image playback devices, and in particular, relates to a mobile phone screen playback device based on holographic image technology, comprising an L-shaped rack, an adjustment device, a display device and a tray, wherein the adjustment device is provided on the rack. The device, the adjusting device is connected with the above-mentioned display device, so that the display device is vertically positioned directly above the rack, and the adjusting device can adjust the inclination angle of the display device, the above-mentioned tray and the rack are clamped, and the tray can slide in the rack, So that the above-mentioned mobile phone on the tray can be located directly under the display device. The present invention is simple in structure and convenient to use, and the tilt angle of the display device can be adjusted by adjusting the knob on the lever, which solves the problem that the display device is not easy to adjust in the existing playback device, and the stereoscopic image at the playback place is clearer and more realistic, which improves the performance of the display device. Viewability of the holographic projection effect.

Figure 201911348531

Description

Mobile phone screen playing device based on holographic image technology
Technical Field
The invention belongs to the technical field of holographic image playing devices, and particularly relates to a mobile phone screen playing device based on a holographic image technology.
Background
The holographic projection technology is a virtual imaging display mode, and the working mode is that light is projected to a transparent holographic film through a light-emitting device, and a stereoscopic image suspended in a space is generated through a diffraction technology. Holographic projection technology is essentially a technology that uses the principles of interference and diffraction to record and reproduce a true three-dimensional image of an object. The holographic projection technology can not only generate a stereoscopic aerial illusion, but also enable the illusion to be generated with a performer to complete the performance together, and generate an impressive performance effect. Holographic projection mainly depends on projection equipment to complete holographic projection, and a screen of common projection equipment is generally fixedly installed and is difficult to adjust according to timely requirements, so that high requirements are met for the installation process and operating personnel.
Disclosure of Invention
In order to solve the defect that the display device is difficult to adjust in the prior art, the invention provides a mobile phone screen playing device based on a holographic image technology.
The technical scheme of the invention is as follows:
the invention provides a mobile phone screen playing device based on holographic image technology, which can perform holographic projection playing on a multidimensional video in a mobile phone and comprises an L-shaped frame, an adjusting device, a display device and a tray, wherein the adjusting device is arranged on the frame and connected with the display device, so that the display device is vertically positioned right above the frame, the adjusting device can adjust the inclination angle of the display device, the tray is clamped with the frame, and the tray can slide in the frame, so that the mobile phone on the tray can be positioned right below the display device.
In an embodiment of the present invention, the rack includes a vertical wall, a bottom wall, and two side walls, wherein the vertical wall is formed with two mounting holes at intervals, the bottom wall is formed with a plurality of heat dissipation slots at intervals, the side walls are formed with two mounting holes at intervals, and the mounting holes on the two side walls are in one-to-one correspondence.
In the embodiment provided by the invention, two side walls of the rack are also provided with clamping grooves which correspond to one another, and the clamping grooves are positioned below the mounting holes on the same side of the clamping grooves.
In the embodiment provided by the invention, the adjusting device is composed of four shift levers arranged in the mounting holes one by one, the shift levers are provided with knobs, wherein one ends of the two shift levers, which are far away from the knobs, respectively extend out from the two mounting holes on the vertical wall and then are positioned right above the bottom wall, and one ends of the other two shift levers, which are far away from the knobs, respectively extend out from the two mounting holes on one side wall in opposite directions and then penetrate through the corresponding mounting holes on the other side wall, so that the two shift levers on the side walls are arranged right above the bottom wall in parallel.
In the embodiment provided by the invention, the display device is in an inverted pyramid structure formed by four trapezoidal holographic films in a surrounding way, wherein the tops of two holographic films which are oppositely arranged are respectively clamped with two shift levers on a vertical wall through a connecting plate, and the bottoms of the other two holographic films are respectively clamped with the two shift levers on the side wall through the connecting plate, so that the inclination angle of the holographic films clamped with the shift levers can be adjusted by adjusting knobs on the shift levers.
In the embodiment of the invention, the tray consists of three side walls and a bottom wall, wherein two opposite side walls are provided with convex clamping strips, and the clamping strips are used for being clamped with the clamping grooves.
In the embodiment provided by the invention, the vertical wall of the rack is also provided with a wire casing.
Has the advantages that: the invention has simple structure and convenient use, can carry out the device for the inclination angle of the display device by the knob on the deflector rod, solves the problem that the display device in the existing playing device is difficult to adjust, ensures that the three-dimensional image at the playing position is clearer and more vivid, and improves the ornamental property of the holographic projection effect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a diagram of a mobile phone screen playing device based on holographic image technology according to the present invention;
FIG. 2 is a block diagram of a rack provided by the present invention;
FIG. 3 is a view showing a structure of a shift lever according to the present invention;
FIG. 4 is one of the structures of the holographic film provided by the present invention;
FIG. 5 is a second structural view of a holographic film according to the present invention;
FIG. 6 is a view showing the structure of a tray according to the present invention.
Shown in the figure: 1-mobile phone screen playing device based on holographic image technology; 2, a mobile phone; 3-a frame; 4-a regulating device; 5-a display device; 6-a tray; 7-vertical walls; 8-a bottom wall; 9-side wall; 10-mounting holes; 11-a heat sink; 12-a card slot; 13-a deflector rod; 14-a holographic film; 15-a connecting plate; 16-a card strip; 17-a wire groove; 18-a clamping groove; 19-knob.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example (b):
as shown in fig. 1, the present embodiment provides a mobile phone screen playing device 1 based on a holographic image technology, which can perform holographic projection playing on a multidimensional video in a mobile phone 2, and includes an L-shaped frame 3, an adjusting device 4, a display device 5 and a tray 6, wherein the adjusting device 4 is disposed on the frame 3, the adjusting device 4 is connected to the display device 5, so that the display device 5 is vertically disposed right above the frame 3, the adjusting device 4 can adjust an inclination angle of the display device 5, the tray 6 is connected to the frame 3 in a snap-fit manner, and the tray 6 can slide in the frame 3, so that the mobile phone 2 on the tray 6 can be disposed right below the display device 5.
As shown in fig. 2, in the present embodiment, the frame 3 includes a vertical wall 7, a bottom wall 8 and two side walls 9, which are integrally formed, two mounting holes 10 are formed on the vertical wall 7 at intervals, a plurality of heat dissipation grooves 11 are formed on the bottom wall 8 at intervals, two mounting holes 10 are formed on the side walls 9 at intervals, and the mounting holes 10 on the two side walls 9 correspond to each other one by one. The four mounting holes 10 on the two side walls 9 are arranged correspondingly in pairs and divided into two groups, and each group of mounting holes 10 is a mounting space.
In this embodiment, two side walls 9 of the rack 3 are further provided with one-to-one corresponding slots 12, and the slots 12 are located below the mounting holes 10 on the same side.
In this embodiment, the adjusting device 4 is composed of four shift levers 13 (as shown in fig. 3) disposed one by one in the mounting holes 10, each of the shift levers 13 is provided with a knob 19, wherein one ends of two shift levers 13 far away from the knobs 19 respectively extend out from the two mounting holes 10 on the vertical wall 7 and then are located right above the bottom wall 8, and one ends of the other two shift levers 13 far away from the knobs 19 respectively extend out from the two mounting holes 10 on one side wall 9 in opposite directions and then pass through the corresponding mounting holes 10 on the other side wall 9, so that the two shift levers 13 on the side walls 9 are disposed in parallel right above the bottom wall 8.
Specifically, two shifting levers 13 are mounted on the vertical wall 7, one ends of the shifting levers 13, which are far away from the knob 19, extend out of the mounting holes 10 on the outer side of the vertical wall 7 and then are positioned above the bottom wall 8 of the rack 3 in parallel, and the shifting levers 13 extend out of clamping grooves 18 above the bottom wall 8 of the rack 3 and are clamped with the display device 5. One ends of the other two deflector rods 13, which are far away from the knob 19, penetrate through the mounting holes 10 on the outer sides of the two side walls 9 of the frame 3 and then extend into the mounting holes 10 on the other side wall 9 corresponding to the other deflector rods. The inclination angle of the display device 5 can be adjusted by adjusting the knob 19 on the shift lever 13, and the sizes of the upper and lower openings of the display device 5 can be changed.
In this embodiment, as shown in fig. 4 and 5, the display device 5 has an inverted pyramid structure surrounded by four trapezoidal holographic films 14, wherein the tops of two holographic films 14 disposed opposite to each other are respectively connected to two shift levers 13 on the vertical wall 7 through a connecting plate 15, and the bottoms of the other two holographic films 14 are respectively connected to two shift levers 13 on the side wall 9 through a connecting plate 15, so that the tilt angle of the holographic film 14 connected to the shift levers 13 can be adjusted by adjusting knobs 19 on the shift levers 13. Wherein, the connecting plates 15 are clamped with the clamping grooves 18 on the shifting lever 13 and then fixed by bolts.
As shown in fig. 6, in the present embodiment, the tray 6 is composed of three side walls 9 and a bottom wall 8, wherein the two opposite side walls 9 are provided with protruding clamping strips 16, and the clamping strips 16 are used for being clamped with the clamping grooves 12.
In this embodiment, a wire slot 17 is further formed in the vertical wall 7 of the rack 3, and the wire slot 17 is used for setting a charging wire of the mobile phone 2, so that the mobile phone 2 can be charged conveniently.
The mobile phone screen playing device 1 based on the holographic image technology provided by the embodiment comprises the following steps:
1) after the frame 3 is placed at a proper position, four shift levers 13 are respectively inserted into two mounting holes 10 of the vertical wall 7 and two groups of mounting holes 10 on two side walls 9;
2) dividing the four holographic films 14 into two groups, wherein the top of one group is provided with a connecting plate 15, the bottom of the other group is provided with a connecting plate 15, two holograms of which the tops are provided with the connecting plates 15 are respectively clamped into two driving lever 13 clamping grooves 18 on the vertical wall 7 and fixed, and two holographic films 14 of which the bottoms are provided with the connecting plates 15 are respectively clamped into two driving lever 13 clamping grooves 18 on the side wall 9 and fixed;
3) then, the mobile phone 2 is placed into the tray 6, and the tray 6 is pushed to the position right below the display device 5;
4) and adjusting the inclination angles of the four holographic films 14 by adjusting the knobs 19 on the shift levers 13 until the stereoscopic image played by the display device 5 is clear and vivid.
The mobile phone screen playing device based on the holographic image technology provided by the embodiment has the beneficial effects that: the invention has simple structure and convenient use, can carry out the device for the inclination angle of the display device by the knob on the deflector rod, solves the problem that the display device in the existing playing device is difficult to adjust, ensures that the three-dimensional image at the playing position is clearer and more vivid, and improves the ornamental property of the holographic projection effect.
Although the present invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present invention.

Claims (3)

1.一种基于全息影像技术的手机屏幕播放装置，可对手机中的多维度视频进行全息投影播放，其特征在于，包括L形机架、调节装置、显示装置和托盘，其中所述机架上设有所述调节装置，调节装置和所述显示装置相连，使得显示装置垂直位于机架正上方，且调节装置可对显示装置的倾斜角度进行调节，所述托盘和机架卡接，且托盘可在机架中滑动，使得托盘上的所述手机可位于显示装置正下方；所述机架包括一体成型的竖壁、底壁和两侧壁，所述竖壁上间隔设有两安装孔，所述底壁上间隔设有多个散热槽，所述侧壁上均间隔设有两安装孔，且两侧壁上的安装孔一一对应；所述机架的两侧壁上还设有一一对应的卡槽，卡槽位于与其同侧的安装孔下方；所述调节装置由一一设置在所述安装孔中的四根拨杆组成，拨杆上均设有旋钮，其中两根拨杆远离旋钮的一端分别从竖壁上的两安装孔中伸出后位于所述底壁的正上方，另外两根拨杆远离旋钮的一端分别相向从一侧壁的两安装孔中伸出后再穿过另一侧壁上对应的安装孔，使得侧壁上的两根拨杆平行设置在所述底壁正上方；所述显示装置由四块梯形全息膜围成的倒金字塔结构，其中相对设置的两块全息膜顶部通过连接板分别与竖壁上的两拨杆卡接，另外两块全息膜底部通过连接板分别与侧壁上的两拨杆卡接，从而通过调节各拨杆上的旋钮就可对与其卡接的全息膜的倾斜角度进行调节。1. a mobile phone screen player based on holographic imaging technology, can carry out holographic projection and playback to the multi-dimensional video in the mobile phone, it is characterized in that, comprise L-shaped rack, adjustment device, display device and tray, wherein said rack The adjustment device is provided on the upper part, and the adjustment device is connected with the display device, so that the display device is vertically positioned directly above the rack, and the adjustment device can adjust the inclination angle of the display device, and the tray and the rack are clamped, and The tray can slide in the rack, so that the mobile phone on the tray can be located directly under the display device; the rack includes an integrally formed vertical wall, a bottom wall and two side walls, and two installations are arranged on the vertical wall at intervals. The bottom wall is provided with a plurality of cooling grooves at intervals, and the side walls are provided with two mounting holes at intervals, and the mounting holes on the two side walls are in one-to-one correspondence; the two side walls of the rack are also provided with There is a one-to-one corresponding card slot, and the card slot is located under the installation hole on the same side; the adjusting device is composed of four levers arranged in the installation holes one by one, and the levers are all provided with knobs, wherein The ends of the two levers away from the knob respectively protrude from the two mounting holes on the vertical wall and are located directly above the bottom wall, and the ends of the other two levers away from the knob face each other from the two mounting holes in one side wall. Extend and then pass through the corresponding mounting hole on the other side wall, so that the two levers on the side wall are arranged in parallel directly above the bottom wall; the display device is an inverted pyramid surrounded by four trapezoidal holographic films structure, in which the tops of the two holographic films arranged oppositely are respectively clamped with the two levers on the vertical wall through the connecting plate, and the bottoms of the other two holographic films are respectively clamped with the two levers on the side wall through the connecting plate, so that by adjusting the The knob on each lever can adjust the inclination angle of the holographic film that is clamped to it. 2.根据权利要求1所述的基于全息影像技术的手机屏幕播放装置，其特征在于，所述托盘由三侧壁和一底壁组成，其中相对设置的两侧壁上均设有凸起的卡条，卡条用于和所述卡槽卡接。2. The mobile phone screen playback device based on holographic image technology according to claim 1, wherein the tray is composed of three side walls and a bottom wall, wherein the two side walls that are oppositely arranged are provided with raised cams. The card bar is used for being snapped with the card slot. 3.根据权利要求1所述的基于全息影像技术的手机屏幕播放装置，其特征在于，所述机架的竖壁上还开设有线槽。3 . The mobile phone screen player based on holographic image technology according to claim 1 , wherein the vertical wall of the rack is further provided with a wire slot. 4 .
CN201911348531.9A 2019-12-24 2019-12-24 Mobile phone screen playing device based on holographic image technology Active CN111198488B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911348531.9A CN111198488B (en) 2019-12-24 2019-12-24 Mobile phone screen playing device based on holographic image technology

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911348531.9A CN111198488B (en) 2019-12-24 2019-12-24 Mobile phone screen playing device based on holographic image technology

Publications (2)

Publication Number Publication Date
CN111198488A CN111198488A (en) 2020-05-26
CN111198488B true CN111198488B (en) 2021-09-28

Family

ID=70744344

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911348531.9A Active CN111198488B (en) 2019-12-24 2019-12-24 Mobile phone screen playing device based on holographic image technology

Country Status (1)

Country Link
CN (1) CN111198488B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206848697U (en) * 2017-05-27 2018-01-05 深圳市一点网络科技有限公司 A kind of Height Adjustable hologram display cabinet
CN208207517U (en) * 2018-05-18 2018-12-07 上海宽创国际文化科技股份有限公司 A kind of pyramid type multimedia holography showcase
CN209803562U (en) * 2019-04-03 2019-12-17 北京微美云息软件有限公司 Projection device based on volume holographic multiplexing technology

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206848697U (en) * 2017-05-27 2018-01-05 深圳市一点网络科技有限公司 A kind of Height Adjustable hologram display cabinet
CN208207517U (en) * 2018-05-18 2018-12-07 上海宽创国际文化科技股份有限公司 A kind of pyramid type multimedia holography showcase
CN209803562U (en) * 2019-04-03 2019-12-17 北京微美云息软件有限公司 Projection device based on volume holographic multiplexing technology

Also Published As

Publication number Publication date
CN111198488A (en) 2020-05-26

Similar Documents

Publication Publication Date Title
KR101539668B1 (en) 3D image display apparatus and method using hologram element
WO2006035884A1 (en) 3d image data structure, recording method thereof, and display reproduction method thereof
CN204350168U (en) A kind of three-dimensional conference system based on line holographic projections technology
CN102868900A (en) Wide viewing angle and crosstalk-free integrated imaging three-dimensional display device
CN206311899U (en) Holographic imaging systems
TWI827625B (en) Mems-driven optical package with micro-led array
JPH06332354A (en) Display for simultaneously displaying plural images
CN106406007A (en) Multi-projection system
JP2013228671A (en) Display device
CN102129211A (en) Method for making synthetic hologram
CN106383407A (en) Flexible naked eye three-dimensional display thin film device based on micro-nano structure
CN111198488A (en) Mobile phone screen playing device based on holographic image technology
US3330908A (en) Deformable medium projection apparatus utilizing novel optical system comprising lens arrays employed in conjunction with light masks
CN111140733B (en) Screen-adjustable playing device based on holographic image technology
KR20160009903A (en) Double moving display using advertisement device
CN103039079B (en) Reproduce multiple image by two dimensional image display matrix simultaneously
CN223051647U (en) 3D holographic projection display device
CN105005191A (en) Holographic display device
CN205247050U (en) Phantom imaging system
CN212391679U (en) 3D display device based on gradient pitch rectangular pinhole array
RU2112322C1 (en) Information-providing display
CN108459487A (en) A kind of tourism tour guide line holographic projections formula simulation training device
CN105869452A (en) Multimedia teaching equipment
CN212933247U (en) Novel holographic glass show cupboard
US8902296B2 (en) Method of displaying an image in three dimensions and panel thus produced

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant