CN203858769U - Mechanical three-dimensional display teaching aid capable of being watched by naked eye - Google Patents

Mechanical three-dimensional display teaching aid capable of being watched by naked eye Download PDF

Info

Publication number
CN203858769U
CN203858769U CN201420210878.3U CN201420210878U CN203858769U CN 203858769 U CN203858769 U CN 203858769U CN 201420210878 U CN201420210878 U CN 201420210878U CN 203858769 U CN203858769 U CN 203858769U
Authority
CN
China
Prior art keywords
power
gear
transmission
scissors
motion
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.)
Expired - Fee Related
Application number
CN201420210878.3U
Other languages
Chinese (zh)
Inventor
卢红
江连会
梁振东
李瑞亮
封雨生
兰莎郧
李冠羽
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.)
Wuhan University of Technology WUT
Original Assignee
Wuhan University of Technology WUT
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 Wuhan University of Technology WUT filed Critical Wuhan University of Technology WUT
Priority to CN201420210878.3U priority Critical patent/CN203858769U/en
Application granted granted Critical
Publication of CN203858769U publication Critical patent/CN203858769U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model relates to a mechanical three-dimensional display teaching aid capable of being watched by naked eyes. The mechanical three-dimensional display teaching aid comprises a projection device and a liquid crystal display screen, wherein the projection device is lifted to a position above the liquid crystal display screen through a lifting motion mechanism, forms a holographic projection device through a closed motion mechanism, and completes rotation through a rotary motion mechanism; the closed motion mechanism comprises four blocks of optical holographic glass, a horizontal shaft, a vertical shaft, synchronous belt wheels, a bevel gear pair, a gear pair and a first stepping motor; the horizontal shaft forms static connection with the optical holographic glass, and forms static connection with the bevel gear pair; the vertical shaft forms static connection with the synchronous belt wheels, and forms static connection with the bevel gear pair; and power of the first stepping motor is transmitted to the vertical shaft through the gear pair and the synchronous belt wheels, and then transmitted to the horizontal shaft in a mesh manner through the bevel gear pair, so that the four blocks of optical holographic glass are opened or closed simultaneously to form an inverted pyramid. The mechanical three-dimensional display teaching aid can adjust the height in the vertical direction, can rotate at 360 degrees in the horizontal direction, can be used for displaying three-dimensional stereoscopic images, and provides the teaching environment with high cost performance.

Description

A kind of mechanical three-dimensional of can bore hole watching is shown teaching aid device
Technical field
The utility model relates to a kind of machinery and shows teaching aid device, and especially a kind of mechanical three-dimensional of can bore hole watching is shown teaching aid device.
Background technology
At present, known multimedia teaching mainly utilizes multimedia computer, the media information such as overall treatment and control character, language, word, sound, figure, image, by teaching requirement, carry out organic assembling multimedia each key element, and by screen or projector's Projection Display out, but the black level expressive force of projector is poor, contrast is low, the expressive ability of impression is not strong, so in multimedia teaching, projector shows that stereoscopic sensation is not strong.For making up this shortcoming, in modern classroom, also applied type teaching, by mock-up, show knowwhy, and mock-up is mainly shown simple mechanism or space profiles, for complex mechanism, cost of manufacture is high and carry inconvenience.In recent years, holographic technique, as a kind of brand-new optical image technology, had all been obtained tremendous development at home and abroad, and had proposed 360 degree hologram technology.
For hologram technology, domestic scholars has proposed a lot of views, the document of delivering has: < < 3D hologram video imaging principle and the product analysis > > of < < scientific and technical information > >, in article article the image-forming principle of this technology: by forming stereopsis on special lens, it is the reverse displaying of holography, can watch from any angle the not ipsilateral of hologram.And to imaging system device, Chinese patent CN202693992U discloses a kind of hologram display device, this device can form stereopsis, but it can only use as showcase, not only expensive, and purposes is single, can not meet user's customization demand.
Utility model content
Technical problem to be solved in the utility model is the deficiency existing for above-mentioned prior art and provide a kind of stereoscopic sensation mechanical three-dimensional of can bore hole watching strong and that can line holographic projections show to show teaching aid device.
The utility model is that the technical scheme that the problem of the above-mentioned proposition of solution adopts is: a kind of mechanical three-dimensional of can bore hole watching is shown teaching aid device, comprise projection arrangement, also comprise LCDs, described projection arrangement rises to LCDs top by elevating movement mechanism, described projection arrangement forms holographic projector by closing motion mechanism, and described projection arrangement completes spinfunction by rotational motion mechanism, described closing motion mechanism, comprise four blocks of optical holography glass, transverse axis, vertical axes, synchronous pulley, Timing Belt, bevel gear pair, gear mesh and the first stepper motor, described transverse axis and optical holography glass form static connection, described transverse axis also with bevel gear to forming static connection, described vertical axes and synchronous pulley form static connection, described vertical axes also with bevel gear to forming static connection, the power that the first stepper motor provides passes through gear mesh, the transmission of synchronous pulley and Timing Belt is passed to vertical axes, by bevel gear, engaged transmission is passed to transverse axis again, thereby four blocks of optical holography glass are opened and closed simultaneously, form handstand pyramid.
Press such scheme, described elevating movement mechanism completes rise and fall by the power power that mechanism provides along separate routes, and described rotational motion mechanism completes rotation by the power power that mechanism provides along separate routes, described power is mechanism along separate routes, comprise the second stepper motor, the first electromagnetic clutch, the second electromagnetic clutch, the first transmission shaft, second driving shaft, the first gear and the second gear, the power that the second described stepper motor provides is passed to the first gear by the first transmission shaft, the first described gear and the engagement of the second gear, the second gear by transmission of power to second driving shaft, described second driving shaft respectively with the first electromagnetic clutch, the second electromagnetic clutch connects, when the first electromagnetic clutch energising, power transmission is to elevating movement mechanism, when the second electromagnetic clutch energising, power transmission is to rotational motion mechanism.
Press such scheme, described elevating movement mechanism, comprises fork bar, lifting table, scissors mechanism, feed screw nut pair and turntable, and the screw mandrel two ends of described feed screw nut pair connect and compose revolute pair with turntable respectively, described scissors mechanism both upper ends thereof is connected with lifting table respectively, the top left end of scissors mechanism and the left end of lifting table are connected to form revolute pair, the upper right end of scissors mechanism and the right-hand member of lifting table are connected to form moving sets, bottom left end and the turntable of scissors mechanism are connected to form revolute pair, the bottom right-hand member of scissors mechanism and the left end of fork bar form revolute pair, the right-hand member of fork bar and the nut seat of feed screw nut pair form static connection, screw mandrel by the power transmission of power that mechanism provides along separate routes to feed screw nut pair, drive the nut seat of feed screw nut pair to do horizontal rectilinear motion, thereby drive scissors mechanism motion, complete the elevating movement of lifting table, realize the elevating movement of elevating movement mechanism.
Press such scheme, described rotational motion mechanism, comprise planetary gear, sun gear, turntable and bottom fixed support, the bottom of described sun gear is fixedly connected with bottom fixed support, the top of described sun gear and turntable form and are dynamically connected, and turntable is dynamically connected as tie-rod and planetary gear formation, and the transmission of power being provided by power shunt mechanism is to planetary gear, thereby turntable is rotated centered by the fixed support of bottom, realize rotatablely moving of rotational motion mechanism.
Implement the stereoscopic sensation of the present utility model mechanical three-dimensional of can bore hole watching strong and that can line holographic projections show and show teaching aid device, there is following beneficial effect:
1, because four blocks of optical holography glass open and close simultaneously, can form handstand pyramid contrast high, the expressive ability of impression is strong.
2, mechanical three-dimensional display device is embedded in lectern inside, and multiple effect can be provided.
3, can realize 3 D stereo Visual Teaching environment, stereoscopic sensation is strong, and cost performance is high.
4, simple in structure, cost of manufacture is cheap, easy to carry, easily universal in teaching.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural drawing of mechanical three-dimensional display device of the present utility model.
Fig. 2 is the power structural drawing of mechanism along separate routes.
The schematic diagram of Tu3Shi elevating movement mechanism.
The schematic diagram of Tu4Shi closing motion mechanism.
Fig. 5 is the schematic diagram of rotational motion mechanism.
In figure: 1, closing motion mechanism, 1-1, transverse axis, 1-2, bevel gear pair, 1-3, vertical axes, 1-4, optical holography glass, 1-5, the first stepper motor, 1-6, synchronous pulley, 1-7, Timing Belt, 1-8, gear mesh; 2, power shunt mechanism, 2-1, the second stepper motor, 2-2, the first transmission shaft, 2-3, the first gear, 2-4, the first electromagnetic clutch, 2-5, the second gear, 2-6, the second electromagnetic clutch, 2-7, second driving shaft; 3, LCDs; 4, elevating movement mechanism, 4-1, scissors mechanism, 4-2 feed screw nut pair, 4-3, lifting table, 4-4, fork bar; 5, rotational motion mechanism, 5-1, turntable, 5-2, sun gear, 5-3, planetary gear, 5-4, bottom fixed support, 5-5, the first bevel gear, 5-6, the second bevel gear.
Embodiment
For technical characterictic of the present utility model, object and effect being had more clearly, understand, now contrast accompanying drawing and describe embodiment of the present utility model in detail.
As Figure 1-Figure 5, the mechanical three-dimensional of can bore hole watching strong in stereoscopic sensation of the present utility model and that can line holographic projections show shows in teaching aid device embodiment,
The stereoscopic sensation of the present utility model shown in Figure 1 mechanical three-dimensional of can bore hole watching strong and that can line holographic projections show is shown teaching aid device, comprise projection arrangement, also comprise LCDs 3, projection arrangement rises to LCDs 3 tops by elevating movement mechanism 4, projection arrangement forms holographic projector by closing motion mechanism 1, and projection arrangement completes spinfunction by rotational motion mechanism 5, closing motion mechanism 1, comprise optical holography glass 1-4, transverse axis 1-1, vertical axes 1-3, synchronous pulley 1-6, Timing Belt 1-7, bevel gear is to 1-2, gear mesh 1-8 and the first stepper motor 1-5, transverse axis 1-1 and optical holography glass 1-4 form static connection, transverse axis 1-1 also forms static connection with bevel gear to 1-2, vertical axes 1-3 and synchronous pulley 1-6 form static connection, vertical axes 1-3 also forms static connection with bevel gear to 1-2, the power that the first stepper motor 1-5 provides is by gear mesh 1-8, the transmission of synchronous pulley 1-6 and Timing Belt 1-7 is passed to vertical axes 1-4, by bevel gear, 1-2 engaged transmission is passed to transverse axis 1-1 again, thereby four optical holography glass 1-4 are opened and closed simultaneously, form handstand pyramid
In the power shunt mechanism 2 of Fig. 2, elevating movement mechanism 4 completes rise and fall by the power power that mechanism 2 provides along separate routes, rotational motion mechanism 5 completes rotation by the power power that mechanism 2 provides along separate routes, power along separate routes mechanism 2 comprises the second stepper motor 2-1, the first electromagnetic clutch 2-4, the second electromagnetic clutch 2-6, the first transmission shaft 2-2, second driving shaft 2-7, the first gear 2-3 and the second gear 2-5, the power that the second stepper motor 2-1 provides is passed to the first gear 2-3 by the first transmission shaft 2-2, the first gear 2-3 and the second gear 2-5 engagement, the second gear 2-5 by transmission of power to second driving shaft 2-7, second driving shaft 2-7 respectively with the first electromagnetic clutch 2-4, the second electromagnetic clutch 2-6 connects, when the first electromagnetic clutch 2-4 energising, power transmission is to elevating movement mechanism 4, when the second electromagnetic clutch 2-6 energising, power transmission is to rotational motion mechanism 5.
In Tu3 elevating movement mechanism 4, comprise fork bar 4-4, lifting table 4-3, scissors mechanism 4-1, feed screw nut pair 4-2 and turntable 5-1, the screw mandrel two ends of feed screw nut pair 4-2 connect and compose revolute pair with turntable 5-1 respectively, scissors mechanism 4-1 both upper ends thereof is connected with lifting table 4-3 respectively, the top left end of scissors mechanism 4-1 and the left end of lifting table 4-3 are connected to form revolute pair, the right-hand member of the upper right end of scissors mechanism 4-1 and lifting table 4-3 is connected to form moving sets, bottom left end and the turntable 5-1 of scissors mechanism 4-1 are connected to form revolute pair, the bottom right-hand member of scissors mechanism 4-1 and the left end of fork bar 4-4 form revolute pair, the nut seat of the right-hand member of fork bar 4-4 and feed screw nut pair 4-2 forms static connection, screw mandrel by the power transmission of power that mechanism 2 provides along separate routes to feed screw nut pair 4-2, drive the nut seat of feed screw nut pair 4-2 to do horizontal rectilinear motion, thereby drive scissors mechanism 4-1 motion, complete the elevating movement of lifting table 4-3, realize the elevating movement of elevating movement mechanism 4.
In the rotational motion mechanism 5 of Fig. 5, comprise planetary gear 5-3, sun gear 5-2, turntable 5-1 and bottom fixed support 5-4, the bottom of sun gear 5-2 is fixedly connected with bottom fixed support 5-4, the top of sun gear 5-2 and turntable 5-1 form and are dynamically connected, turntable 5-1 is dynamically connected as tie-rod and planetary gear 5-3 formation, the transmission of power being provided by power shunt mechanism 2 is to planetary gear 5-3, by tie-rod, drive turntable 5-1 to rotate, thereby turntable 5-1 is rotated centered by the fixed support 5-4 of bottom, realize rotatablely moving of rotational motion mechanism 5.
This device is not when starting mechanical motion, also can be used as existing multimedia lectern uses, when needs switching enters three-dimensional teaching pattern, complete machine starts, projection arrangement rises to the top of LCDs 3 by elevating movement mechanism 4, by closing motion mechanism 1, be configured to 360 degree holographic projectors, complete preliminary developing function, when the comprehensive observation stereopsis of needs, projection arrangement can carry out 360 ° of rotations by rotational motion mechanism 5, simultaneously in order to make physical construction compacter, by power along separate routes mechanism 2 respectively to elevating movement mechanism 4, rotational motion mechanism 5 provides power, complete the elevating movement of the vertical direction of this device, and the rotation of horizontal direction.
Power is the work engineering of mechanism 2 along separate routes: the second stepper motor 2-1 is passed to the first gear 2-3 by power by the first transmission shaft 2-2, the first gear 2-3 and the second gear 2-5 engagement, by the second gear 2-5 by transmission of power to second driving shaft 2-7, second driving shaft 2-7 is connected with the first electromagnetic clutch 2-4, the second electromagnetic clutch 2-6 respectively; When the first electromagnetic clutch 2-4 energising, power will be passed to feed screw nut pair 4-2, and then drive elevating movement mechanism 4 to complete elevating movement; When the second electromagnetic clutch 2-6 energising, power will be passed to the first bevel gear 5-5, the first bevel gear 5-5 and the second bevel gear 5-6 engagement, and then by the second bevel gear 5-6 by transmission of power to planetary gear 5-3, and then the rotatablely moving of driven rotary motion 5, complete respectively the transmission of power.
The course of work of rotational motion mechanism 5: when the second stepper motor 2-1 in power shunt mechanism 2 works, by transmission of power to planetary gear 5-3, planetary gear 5-3 makes spinning motion, turntable 5-1 is dynamically connected as tie-rod and planetary gear 5-3 formation, by the engaged transmission of planetary gear 5-3 and sun gear 5-2, planetary gear 5-3 makes revolution motion centered by the fixed support 5-4 of bottom, drives turntable 5-1 also centered by the fixed support 5-4 of bottom, to rotate, thereby single unit system is rotated.
The engineering process of elevating movement mechanism 4: when the second stepper motor 2-1 in power shunt mechanism 2 works, screw mandrel by transmission of power to feed screw nut pair 4-2, the gyration of the screw mandrel of feed screw nut pair 4-2 is converted to the rectilinear motion of the nut seat of feed screw nut pair 4-2, and the nut seat of feed screw nut pair 4-2 is connected by fork bar 4-4 with scissors mechanism 4-1, the rectilinear motion of the nut seat of feed screw nut pair 4-2 is converted to the rectilinear motion of mobile terminal, scissors mechanism 4-1 bottom, thereby drive the motion of scissors mechanism 4-1, the rotatablely move elevating movement of the vertical direction that is converted to scissors mechanism 4-1 of the main shaft that second step enters motor 2-1 the most at last, make lifting table 4-3 increase in the vertical direction or descending motion, complete the elevating movement of projection arrangement.
The course of work of closing motion mechanism 1: when the first stepper motor 1-5 in closing motion mechanism 1 works, by gear mesh 1-8 by transmission of power to synchronous pulley 1-6, toothed belt transmission by synchronous pulley 1-6, Timing Belt 1-7 by transmission of power to vertical axes 1-3, again by bevel gear to 1-2 by transmission of power to transverse axis 1-1, thereby make that four optical holography glass 1-4 are closed forms a handstand pyramid.
By reference to the accompanying drawings embodiment of the present utility model is described above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not departing from the scope situation that the utility model aim and claim protect, also can make a lot of forms, within these all belong to protection of the present utility model.

Claims (4)

1. a mechanical three-dimensional of can bore hole watching is shown teaching aid device, it is characterized in that, comprise projection arrangement, also comprise LCDs, described projection arrangement rises to LCDs top by elevating movement mechanism, described projection arrangement forms holographic projector by closing motion mechanism, and described projection arrangement completes spinfunction by rotational motion mechanism, described closing motion mechanism, comprise four blocks of optical holography glass, transverse axis, vertical axes, synchronous pulley, Timing Belt, bevel gear pair, gear mesh and the first stepper motor, described transverse axis and optical holography glass form static connection, described transverse axis also with bevel gear to forming static connection, described vertical axes and synchronous pulley form static connection, described vertical axes also with bevel gear to forming static connection, the power that the first stepper motor provides passes through gear mesh, the transmission of synchronous pulley and Timing Belt is passed to vertical axes, by bevel gear, engaged transmission is passed to transverse axis again, thereby optical holography glass is opened and closed simultaneously, form handstand pyramid.
2. the mechanical three-dimensional of can bore hole watching according to claim 1 is shown teaching aid device, it is characterized in that, described elevating movement mechanism completes rise and fall by the power power that mechanism provides along separate routes, and described rotational motion mechanism completes rotation by the power power that mechanism provides along separate routes, described power is mechanism along separate routes, comprise the second stepper motor, the first electromagnetic clutch, the second electromagnetic clutch, the first transmission shaft, second driving shaft, the first gear and the second gear, the power that the second described stepper motor provides is passed to the first gear by the first transmission shaft, the first described gear and the engagement of the second gear, the second gear by transmission of power to second driving shaft, described second driving shaft respectively with the first electromagnetic clutch, the second electromagnetic clutch connects, when the first electromagnetic clutch energising, power transmission is to elevating movement mechanism, when the second electromagnetic clutch energising, power transmission is to rotational motion mechanism.
3. the mechanical three-dimensional of can bore hole watching according to claim 1 is shown teaching aid device, it is characterized in that, described elevating movement mechanism, comprise fork bar, lifting table, scissors mechanism, feed screw nut pair and turntable, the screw mandrel two ends of described feed screw nut pair connect and compose revolute pair with turntable respectively, described scissors mechanism both upper ends thereof is connected with lifting table respectively, the top left end of scissors mechanism and the left end of lifting table are connected to form revolute pair, the upper right end of scissors mechanism and the right-hand member of lifting table are connected to form moving sets, bottom left end and the turntable of scissors mechanism are connected to form revolute pair, the bottom right-hand member of scissors mechanism and the left end of fork bar form revolute pair, the right-hand member of fork bar and the nut seat of feed screw nut pair form static connection, screw mandrel by the power transmission of power that mechanism provides along separate routes to feed screw nut pair, drive the nut seat of feed screw nut pair to do horizontal rectilinear motion, thereby drive scissors mechanism motion, complete the elevating movement of lifting table, realize the elevating movement of elevating movement mechanism.
4. the mechanical three-dimensional of can bore hole watching according to claim 1 is shown teaching aid device, it is characterized in that, described rotational motion mechanism, comprise planetary gear, sun gear, turntable and bottom fixed support, the bottom of described sun gear is fixedly connected with bottom fixed support, the top of described sun gear and turntable form and are dynamically connected, turntable is dynamically connected as tie-rod and planetary gear formation, the transmission of power being provided by power shunt mechanism is to planetary gear, thereby turntable is rotated centered by the fixed support of bottom, realize rotatablely moving of rotational motion mechanism.
CN201420210878.3U 2014-04-28 2014-04-28 Mechanical three-dimensional display teaching aid capable of being watched by naked eye Expired - Fee Related CN203858769U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420210878.3U CN203858769U (en) 2014-04-28 2014-04-28 Mechanical three-dimensional display teaching aid capable of being watched by naked eye

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420210878.3U CN203858769U (en) 2014-04-28 2014-04-28 Mechanical three-dimensional display teaching aid capable of being watched by naked eye

Publications (1)

Publication Number Publication Date
CN203858769U true CN203858769U (en) 2014-10-01

Family

ID=51608611

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420210878.3U Expired - Fee Related CN203858769U (en) 2014-04-28 2014-04-28 Mechanical three-dimensional display teaching aid capable of being watched by naked eye

Country Status (1)

Country Link
CN (1) CN203858769U (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105374238A (en) * 2015-12-15 2016-03-02 重庆触视科技有限公司 Holographic display teaching system
CN105844990A (en) * 2016-06-14 2016-08-10 丁昊冉 Projection interactive teaching device for high school students' learning
CN106019778A (en) * 2016-07-08 2016-10-12 天津工业大学 Classroom model based on holographic laser projection and application thereof
CN106383430A (en) * 2016-11-03 2017-02-08 郭洪礼 Holographic image display system
CN108287450A (en) * 2017-12-14 2018-07-17 安徽瀚景观规划设计院有限公司 A kind of holographic integrated back projection devices of 3D
CN108761987A (en) * 2018-06-06 2018-11-06 芜湖威灵数码科技有限公司 A kind of adjustable holographic projector of projection screen
CN109061891A (en) * 2018-07-17 2018-12-21 张梦如 A kind of dynamic naked eye 3D vision imaging device
CN109979252A (en) * 2019-03-15 2019-07-05 黄河水利职业技术学院 The efficient teaching system of teachers content can sufficiently be optimized
CN110956907A (en) * 2019-11-22 2020-04-03 滨州学院 Interactive holographic three-dimensional display system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105374238A (en) * 2015-12-15 2016-03-02 重庆触视科技有限公司 Holographic display teaching system
CN105374238B (en) * 2015-12-15 2018-01-09 重庆触视科技有限公司 Hologram display tutoring system
CN105844990A (en) * 2016-06-14 2016-08-10 丁昊冉 Projection interactive teaching device for high school students' learning
CN106019778A (en) * 2016-07-08 2016-10-12 天津工业大学 Classroom model based on holographic laser projection and application thereof
CN106383430A (en) * 2016-11-03 2017-02-08 郭洪礼 Holographic image display system
CN108287450A (en) * 2017-12-14 2018-07-17 安徽瀚景观规划设计院有限公司 A kind of holographic integrated back projection devices of 3D
CN108761987A (en) * 2018-06-06 2018-11-06 芜湖威灵数码科技有限公司 A kind of adjustable holographic projector of projection screen
CN109061891A (en) * 2018-07-17 2018-12-21 张梦如 A kind of dynamic naked eye 3D vision imaging device
CN109979252A (en) * 2019-03-15 2019-07-05 黄河水利职业技术学院 The efficient teaching system of teachers content can sufficiently be optimized
CN110956907A (en) * 2019-11-22 2020-04-03 滨州学院 Interactive holographic three-dimensional display system

Similar Documents

Publication Publication Date Title
CN203858769U (en) Mechanical three-dimensional display teaching aid capable of being watched by naked eye
CN102063006B (en) 3D (Three-Dimensional) image shooting device
CN203982070U (en) Holographic projector that can automatic lifting
CN104135656A (en) Method and device for detecting autostereoscopic display quality of mobile terminal
CN203752739U (en) Combined blackboard serving as three-dimensional teaching aid platform
CN104008710A (en) Method for dynamically displaying pictures by using arrayed type telescopic rods
CN103971619A (en) Three-dimensional telescopic display device capable of dynamically displaying pictures
CN207132049U (en) A kind of adjustable LED electrical screens of municipal administration
CN201576132U (en) Head-wearing type video perspective stereoscopic display
CN201955614U (en) Three-dimensional (3D) image shooting device
CN209803562U (en) Projection device based on volume holographic multiplexing technology
CN104143272B (en) A kind of stereoscopic image display machine based on interactive teaching
CN204143743U (en) A kind of multi views shooting teaching appliance
CN104849862A (en) Transmission mechanism, head mounted display, and refraction adjusting method for head mounted display
CN107657841A (en) A kind of CAD instructional devices and system based on line holographic projections
CN204791753U (en) Novel gear model becomes experiment machine
CN104157204B (en) A kind of multi-functional mechanical principle shows teaching aid
CN201867545U (en) External hanging device for three-dimensional imaging membrane
CN208804426U (en) A kind of concealed safety street town camera
CN204632232U (en) Mill teeth gear hobbing gear shaping one teaching aid
CN204516252U (en) A kind of integrated three-dimensional display platform based on 360 degree of hologram technology
CN211354775U (en) Multi-angle show stand is used in visual transmission design
CN206990929U (en) Virtual reality glasses
CN202282121U (en) Multi-screen linkage rotary display device
CN201527535U (en) Mosaic wall

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141001

Termination date: 20150428