CN203982070U - Holographic projector that can automatic lifting - Google Patents
Holographic projector that can automatic lifting Download PDFInfo
- Publication number
- CN203982070U CN203982070U CN201420380151.XU CN201420380151U CN203982070U CN 203982070 U CN203982070 U CN 203982070U CN 201420380151 U CN201420380151 U CN 201420380151U CN 203982070 U CN203982070 U CN 203982070U
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- projection screen
- automatic lifting
- projector
- mechanical transmission
- transmission mechanism
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Abstract
The utility model discloses a kind of holographic projector that can automatic lifting, comprise projection screen, projector, mechanical transmission mechanism and power-driven mechanism; The projection screen board that this projection screen is made up of the hard transparent material of at least three identical isosceles trapezoids forms, and the shorter base of each projection screen board relatively and be hinged on a support; Described mechanical transmission mechanism can make the jointed shaft upset of each projection screen board with its shorter base, and each side of each projection screen board is combined into a polygonal pyramid shape between two relatively; Described power-driven mechanism provides the power of described mechanical transmission mechanism motion; This projector be arranged on described projection screen under, and be positioned at centre position, it is arranged on a bracing frame.The projection screen of this projection arrangement can be realized automatic lifting, conserve space, be easy to carry, and low cost, simple to operate, to be applicable to teaching universal.
Description
Technical field
The utility model relates to a kind of holographic projector that can automatic lifting, belongs to the technical field of projector equipment.
Background technology
Holographic technique is the technology that realizes the recording and reconstruction of real 3-D view, and this image is called hologram.Different with other three-dimensionals " image ", hologram provides " parallax ".The difference image that the existence of parallax makes observer can observe by all around and upper and lower movement image, there is sense, the sense of reality in the three-dimensional that gives object.
The stereo projection technology of current comparative maturity, realize by polarisation of light principle, each eyes pass through polaroid glasses, two eyes are seen respectively different polarized lights, utilize parallax, produce three-dimensional sensation in visual system, this stereo technology is very high to the polarization of screen requirement property, simultaneously for some crowds, and be not suitable with such technology; Secondly also have laser hologram shadow casting technique, this technology is very high to the requirement of environment, and cost is high, and technology is immature, incomplete.
Chinese Patent Application No. is " 200920050133.4 ", name of patent application is in the patent of " holographic projector ", a kind of projecting method of statement, it is the method that current existing most of line holographic projections product adopts, it adopts reflection of light principle, can realize the effect of line holographic projections, allow beholder watch by naked eyes, unrestricted.
But, because the transparent screen that holographic projector adopts is at present three-dimensional large scale pyramid, take up room large (conventionally more than one meter), therefore this product structure is huge cabinet type or suspension type, and huge and fixing, dirigibility is poor.Assemble loaded down with trivial details, operation inconvenience.Due to the above shortcoming of this product, be difficult at present promote in teaching.
Utility model content
Technical problem to be solved in the utility model be to provide a kind of can realize function of auto-lift, low cost, simple to operate, be applicable to teaching universal can automatic lifting holographic projector.
For solving the problems of the technologies described above, technical solution of the present utility model is:
Holographic projector that can automatic lifting, comprises projection screen, projector, mechanical transmission mechanism and power-driven mechanism; The projection screen board that this projection screen is made up of the hard transparent material of at least three identical isosceles trapezoids forms, and the shorter base of each projection screen board relatively and be hinged on a support; Described mechanical transmission mechanism can make the jointed shaft upset of each projection screen board with its shorter base, and each side of each projection screen board is combined into a polygonal pyramid shape between two relatively; Described power-driven mechanism provides the power of described mechanical transmission mechanism motion; This projector be arranged on described projection screen under, and be positioned at centre position, it is arranged on a bracing frame.
Preferably, described mechanical transmission mechanism comprises perpendicular pole, the top of this perpendicular pole is hinged on the middle part of a brace, one end of this brace is hinged on support frame as described above, its other end is hinged on a switch block, on this switch block, be hinged with two slide blocks with clip slot, the clip slot of two slide blocks is clamped respectively the side of adjacent two projection screen boards.
Preferably, described mechanical transmission mechanism is the support bar that is hinged on each projection screen board outside.
Preferably, described power-driven mechanism comprises motor, the screw mandrel that connects, is arranged on the feed screw nut on screw mandrel and is fixed on the lift slab on this feed screw nut with the main shaft of motor; Described mechanical transmission mechanism is arranged on this lift slab.
Preferably, described power-driven mechanism comprises motor, the screw mandrel that connects, is arranged on the feed screw nut on screw mandrel and is fixed on the lift slab on this feed screw nut with the main shaft of motor; Described perpendicular pole is arranged on this lift slab.
Preferably, described perpendicular pole lower end is hinged on described lift slab.
Preferably, the main shaft of described motor is connected with described screw mandrel by a shaft coupling.
Preferably, described holographic projector is arranged in a casing.
Preferably, on described casing, handle is housed.
Preferably, on described casing, roller is housed.
Preferably, described projector is display device.
Adopt after such scheme, because projection screen is designed to liftable structure by the utility model, in use, each projection screen board of projection screen is risen and be fixedly inverted pyramid shape by power-driven mechanism driving mechanical gearing, form the needed screen shape of line holographic projections, cooperation projector etc. is realized the effect of line holographic projections; And in the time not using, each projection screen board of projection screen can be put down, each projection screen board is set level on the same face, whole projection arrangement can be placed in a casing, better saves space, is convenient to product maintenance, and is easy to carry.And the design of mechanical transmission mechanism and power-driven mechanism, can realize the synchronization lifting of each projection screen board, simple to operate, entirety is more firm.
More specifically, the utlity model has following advantage:
1. the very large conserve space of liftable performance of projection screen, has solved that such projector equipment is bulky on the market, the shortcomings such as wasting space.
2. adopt motor and screw mandrel to form hoistable platform, make the lifting of projection screen rapidly stable, make simple to operately, only need press on & off switch, screen can automatically rise or decline.
3. cost is low, and the utility model can select the common flat-panel display devices such as display screen, panel computer as projector, therefore can easily transfer 2D projection to 3D line holographic projections, and generalization is strong, is more suitable for using in teaching.
4. can adopt case structure, be easy to carry, maintain and safeguard.
Brief description of the drawings
Fig. 1 is perspective view of the present utility model (external box of microvave does not show);
Fig. 2 is vertical view of the present utility model (ladder state);
Fig. 3 is the A-A cut-open view of Fig. 2;
Fig. 4 is the B-B cut-open view of Fig. 2;
Structural representation when Fig. 5 is the rise of the utility model projection screen;
Fig. 6 is the simple model figure of the utility model line holographic projections technology.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
What the utility model disclosed is a kind of holographic projector that can automatic lifting as shown in Figures 1 to 5, is preferred embodiment of the present utility model.Described holographic projector comprises projection screen 1, projector, mechanical transmission mechanism 3 and power-driven mechanism 4.Wherein:
The projection screen board 11 that described projection screen 1 is made up of the hard transparent material of four identical isosceles trapezoids forms, and the shorter base of four projection screen boards 11 relatively and be hinged on a support 12, after these four projection screen boards 11 upwards overturn with the jointed shaft on its shorter base, its each side is combined into an inverted pyramid shape between two relatively.The projection screen of Pyramid is modal holographic projection screen, certainly this projection screen also can by three or more polylith projection screen board form polygonal pyramid shape structure.
Described projector (not shown) be arranged on described projection screen 1 under, and be positioned at centre position, this projector can be common display, display screen, panel computer etc., all flat display apparatus that can blur-free imaging, this display device can be arranged on a bracing frame 21.Image is by projector, and vertical projection, on polylith projection screen board 11, forms 4 imaging regions, realizes the effect of line holographic projections.
Described mechanical transmission mechanism 3 in order to each projection screen board 11 is upwards overturn at an angle, and makes each side of each projection screen board 11 relative between two.Described mechanical transmission mechanism 3 can be various structures, for example one is simply hinged on the support bar in each projection screen board 11 outsides, but, if directly this support bar is arranged on to the outside of projection screen 1, watching of image will be affected, moreover each projection screen board 11 needs a firmly holding state after propping.For this reason, the present embodiment is concrete, this mechanical transmission mechanism 3 comprises perpendicular pole 31, the top of this perpendicular pole 31 is hinged on the middle part of a brace 32, one end of this brace 32 is hinged on support frame as described above 21, its other end is hinged on a switch block 33, is hinged with two clip slots with 34, two slide blocks 34 of slide block of clip slot and clamps respectively the side of adjacent two projection screen boards 11 on this switch block 33.The mechanical transmission mechanism of this structure, rise perpendicular pole 31, after driving brace 32 to lift, two has the slide block 34 of clip slot and will clamp the side of projection screen board 11, and change angle along with the angle after two adjacent projection screen plate 11 upset docking, thereby can make firm being docking together of the adjacent projection screen board of two-phase.And, in the present embodiment, in the adjacent side position of four projection screen boards 11 (being stitching position), the mechanical transmission mechanism 3 described in a group can be respectively set, this mechanical transmission mechanism 3, due to the stitching position of position projection screen, does not therefore affect watching of image.
The power of described power-driven mechanism 4 in order to provide described mechanical transmission mechanism 3 to move, this power-driven mechanism 4 also can have various structures form, lift cylinder that for example simply can directly be connected with above-mentioned support bar or perpendicular pole 31 etc.But such actuating unit, need to be equipped with a lift cylinder for each mechanical transmission mechanism, is difficult to realize interlock.For each mechanical transmission mechanism 3 is moved simultaneously, the present embodiment preferably, screw mandrel 42 that this power-driven mechanism 4 comprises motor 41, connect with the main shaft of motor 41, be arranged on the feed screw nut 43 on screw mandrel 42 and be fixed on the lift slab 44 on this feed screw nut 43, the main shaft of this motor 41 can be connected with described screw mandrel 42 by a shaft coupling 45 again.Above-mentioned mechanical transmission mechanism 3 is arranged on this lift slab 44, and for the mechanical transmission mechanism 3 described in the present embodiment, described perpendicular pole 31 is installed on this lift slab 44.In addition, because the top of described perpendicular pole 31 will be rotated along with brace 32, therefore perpendicular pole 31 in the time upwards boosting brace 32 also by the trend rotating, in order to adapt to this continuous action relation, can make the lower end of described perpendicular pole 31 be hinged on described lift slab 44, can make the upper end of this perpendicular pole 31 can be on brace 32 slidably with brace 32 hinged (the present embodiment adopts both structures).
Principle of work of the present utility model is: power-on, and motor 41 forwards, motor 41 main shafts drive screw mandrel 42 to rotate by shaft coupling 45, because the feed screw nut 43 on screw mandrel 42 is connected with lift slab 44, can not rotate, can only rise, thereby will rotatablely move and transfer rectilinear motion to by feed screw nut 43, promote lift slab 44 and rise, when rising, lift slab 44 drive perpendicular pole 31 to rise, the rising of perpendicular pole 31 is by jack-up brace 32, because one end and the bracing frame 21 of brace 32 are hinged fixing, therefore brace 32 will rotate around jointed shaft, make the other end of brace 32 by jack-up, thereby rise projection screen board 11, and the side of this projection screen board 11 is relative sliding in the clip slot of slide block 34, because being hinged on, slide block 34 turns on 33 simultaneously, such two slide blocks 34 are when both sides projection screen board 11 rises, the action that realization is turned up, and two slide blocks 34 can relatively rotate around brace 32 axis with switch block 33 three's entirety, meet moving condition required while rising, finally make projection screen board 11 rise into inverted pyramid shape.In the time that projection screen 1 will be packed up, only need make motor 41 reversions.
Further, because projection screen 1 is not in the time using, its each projection screen board 11 can be declined to become writing board shape, and therefore whole projection arrangement can be arranged in a casing (not shown), thereby reaches little, the convenient mobile object of volume.In addition, on casing, can also load onto handle or roller, so that carry.
As shown in Figure 6, for the simple model figure of the utility model line holographic projections technology, concrete image-forming principle is: by the video in holographic video source, by display device 2, image is rendered on 4 transparent screens 1 of inverted pyramid shape, utilize reflection of light and diffraction, allow people see the holographic three-dimensional image forming in a space of enclosing at each screen 1, stereoscopic sensation is very strong.The utility model adopts modal flat display apparatus to replace comparatively expensive dot matrix projector, although it is high that sharpness is not so good as dot matrix projector, cost is low, in campus, can find everywhere, and whole projection arrangement volume is little, is very suitable for teaching and uses.
The above, it is only preferred embodiment of the present utility model, not technical scope of the present utility model is imposed any restrictions, thus variation or the modification in every case done according to claim of the present utility model and instructions, within all should belonging to the scope that the utility model patent contains.
Claims (10)
1. a holographic projector that can automatic lifting, is characterized in that: comprise projection screen (1), projector, mechanical transmission mechanism (3) and power-driven mechanism (4); The projection screen board (11) that this projection screen is made up of the hard transparent material of at least three identical isosceles trapezoids forms, and the shorter base of each projection screen board relatively and be hinged on a support (12); Described mechanical transmission mechanism can make the jointed shaft upset of each projection screen board with its shorter base, and each side of each projection screen board is combined into a polygonal pyramid shape between two relatively; Described power-driven mechanism provides the power of described mechanical transmission mechanism motion; This projector be arranged on described projection screen under, and be positioned at centre position, it is arranged on a bracing frame (21).
2. holographic projector that can automatic lifting according to claim 1, it is characterized in that: described mechanical transmission mechanism comprises perpendicular pole (31), the top of this perpendicular pole is hinged on the middle part of a brace (32), one end of this brace is hinged on support frame as described above (21), its other end is hinged on a switch block (33), on this switch block, be hinged with two slide blocks (34) with clip slot, the clip slot of two slide blocks is clamped respectively the side of adjacent two projection screen boards.
3. holographic projector that can automatic lifting according to claim 1, is characterized in that: described mechanical transmission mechanism is the support bar that is hinged on each projection screen board outside.
4. holographic projector that can automatic lifting according to claim 1, is characterized in that: screw mandrel (42) that described power-driven mechanism comprises motor (41), connect with the main shaft of motor, be arranged on the feed screw nut (43) on screw mandrel and be fixed on the lift slab (44) on this feed screw nut; Described mechanical transmission mechanism is arranged on this lift slab.
5. holographic projector that can automatic lifting according to claim 2, is characterized in that: screw mandrel (42) that described power-driven mechanism comprises motor (41), connect with the main shaft of motor, be arranged on the feed screw nut (43) on screw mandrel and be fixed on the lift slab (44) on this feed screw nut; Described perpendicular pole is arranged on this lift slab.
6. holographic projector that can automatic lifting according to claim 5, is characterized in that: described perpendicular pole lower end is hinged on described lift slab.
According to one of claim 4-6 Suo Shu can automatic lifting holographic projector, it is characterized in that: the main shaft of described motor is connected with described screw mandrel by a shaft coupling (45).
According to one of claim 1-6 Suo Shu can automatic lifting holographic projector, it is characterized in that: this holographic projector is arranged in a casing.
9. holographic projector that can automatic lifting according to claim 8, is characterized in that: handle or and roller are housed on described casing.
10. holographic projector that can automatic lifting according to claim 8, is characterized in that: described projector is display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420380151.XU CN203982070U (en) | 2014-07-10 | 2014-07-10 | Holographic projector that can automatic lifting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420380151.XU CN203982070U (en) | 2014-07-10 | 2014-07-10 | Holographic projector that can automatic lifting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203982070U true CN203982070U (en) | 2014-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420380151.XU Expired - Fee Related CN203982070U (en) | 2014-07-10 | 2014-07-10 | Holographic projector that can automatic lifting |
Country Status (1)
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| CN (1) | CN203982070U (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372917A (en) * | 2015-12-15 | 2016-03-02 | 重庆触视科技有限公司 | Fast installation holographic projection support device |
| CN105374238A (en) * | 2015-12-15 | 2016-03-02 | 重庆触视科技有限公司 | Holographic display teaching system |
| CN106019778A (en) * | 2016-07-08 | 2016-10-12 | 天津工业大学 | Classroom model based on holographic laser projection and application thereof |
| CN106842879A (en) * | 2017-04-07 | 2017-06-13 | 上海珍星网络科技有限公司 | Foldable holographic display |
| CN106909022A (en) * | 2017-04-07 | 2017-06-30 | 上海珍星网络科技有限公司 | Dynamic holographic projection arrangement |
| CN108363265A (en) * | 2018-04-21 | 2018-08-03 | 芜湖威灵数码科技有限公司 | A kind of amusement projection device |
| CN108535991A (en) * | 2018-04-21 | 2018-09-14 | 芜湖威灵数码科技有限公司 | A kind of holographic projector |
| CN109256067A (en) * | 2018-10-15 | 2019-01-22 | 惠州市华阳多媒体电子有限公司 | A kind of vehicle-mounted holographic projection system at big visual angle |
| CN110703557A (en) * | 2019-11-12 | 2020-01-17 | 江苏医药职业学院 | Projection device with radiation structure for medical image |
| CN112991833A (en) * | 2021-03-01 | 2021-06-18 | 河南农业职业学院 | Holographic projection teaching equipment based on network |
| CN113096459A (en) * | 2021-04-16 | 2021-07-09 | 内蒙古农业大学 | Three-dimensional display device of plant specimen |
| CN113183665A (en) * | 2021-04-28 | 2021-07-30 | 闫化存 | Multifunctional blackboard based on holographic projection |
| CN114077147A (en) * | 2021-11-16 | 2022-02-22 | 广东银虎智能科技有限公司 | Holographic projection intelligent interaction device |
| CN115061347A (en) * | 2022-05-30 | 2022-09-16 | 北京笔中展览展示有限公司 | Multi-angle display device for exhibition hall |
-
2014
- 2014-07-10 CN CN201420380151.XU patent/CN203982070U/en not_active Expired - Fee Related
Cited By (19)
| 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 |
| CN105372917A (en) * | 2015-12-15 | 2016-03-02 | 重庆触视科技有限公司 | Fast installation holographic projection support device |
| CN106019778A (en) * | 2016-07-08 | 2016-10-12 | 天津工业大学 | Classroom model based on holographic laser projection and application thereof |
| CN106842879A (en) * | 2017-04-07 | 2017-06-13 | 上海珍星网络科技有限公司 | Foldable holographic display |
| CN106909022A (en) * | 2017-04-07 | 2017-06-30 | 上海珍星网络科技有限公司 | Dynamic holographic projection arrangement |
| CN108363265B (en) * | 2018-04-21 | 2020-11-06 | 芜湖威灵数码科技有限公司 | Entertainment projection equipment |
| CN108363265A (en) * | 2018-04-21 | 2018-08-03 | 芜湖威灵数码科技有限公司 | A kind of amusement projection device |
| CN108535991A (en) * | 2018-04-21 | 2018-09-14 | 芜湖威灵数码科技有限公司 | A kind of holographic projector |
| CN109256067A (en) * | 2018-10-15 | 2019-01-22 | 惠州市华阳多媒体电子有限公司 | A kind of vehicle-mounted holographic projection system at big visual angle |
| CN110703557A (en) * | 2019-11-12 | 2020-01-17 | 江苏医药职业学院 | Projection device with radiation structure for medical image |
| CN110703557B (en) * | 2019-11-12 | 2021-07-30 | 江苏医药职业学院 | Projection device with radiation structure for medical image |
| CN112991833A (en) * | 2021-03-01 | 2021-06-18 | 河南农业职业学院 | Holographic projection teaching equipment based on network |
| CN113096459A (en) * | 2021-04-16 | 2021-07-09 | 内蒙古农业大学 | Three-dimensional display device of plant specimen |
| CN113183665A (en) * | 2021-04-28 | 2021-07-30 | 闫化存 | Multifunctional blackboard based on holographic projection |
| CN113183665B (en) * | 2021-04-28 | 2022-07-01 | 北京博导前程信息技术股份有限公司 | Multifunctional blackboard based on holographic projection |
| CN114077147A (en) * | 2021-11-16 | 2022-02-22 | 广东银虎智能科技有限公司 | Holographic projection intelligent interaction device |
| CN114077147B (en) * | 2021-11-16 | 2022-06-21 | 广东银虎智能科技有限公司 | Holographic projection intelligent interaction device |
| CN115061347A (en) * | 2022-05-30 | 2022-09-16 | 北京笔中展览展示有限公司 | Multi-angle display device for exhibition hall |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20170710 |