CN110888297B - Multi-disc broadcast projector - Google Patents
Multi-disc broadcast projector Download PDFInfo
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- CN110888297B CN110888297B CN201811045570.7A CN201811045570A CN110888297B CN 110888297 B CN110888297 B CN 110888297B CN 201811045570 A CN201811045570 A CN 201811045570A CN 110888297 B CN110888297 B CN 110888297B
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- lamp
- lamp piece
- piece
- receiving device
- projector
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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
- G03B23/00—Devices for changing pictures in viewing apparatus or projectors
- G03B23/02—Devices for changing pictures in viewing apparatus or projectors in which a picture is removed from a stock and returned to the same stock or another one; Magazines therefor
Abstract
The invention discloses a multi-piece playing projector, comprising: the lamp piece accommodating device is arranged opposite to the at least one lamp piece accommodating device and is used for accommodating a plurality of lamp pieces respectively; the lamp piece taking and placing device is used for grabbing the preset lamp pieces of the lamp piece storage device, playing the preset lamp pieces and placing the played preset lamp pieces back to the lamp piece storage device. By the mode, the automation degree of the playing process of the lamp piece can be improved, and a better playing effect is obtained.
Description
Technical Field
The invention relates to the technical field of film playing, in particular to a multi-piece playing projector.
Background
With the continuous development of technology and the continuous improvement of aesthetic requirements of people, various advertisements and brightening full-color contents are often required to be projected on the surfaces of objects such as buildings, mountains, water surfaces, air, floors, glass and the like. The advertisements and contents are usually produced as light sheets and played by a projector or the like.
Among the current projection light source, it is less to store the lamp piece that is used for switching the broadcast for the variety of projection lamp display content receives the influence, and there is automatic poor and switching speed slow scheduling problem in the lamp piece switching process, makes the user's physical examination of projection lamp not good.
Disclosure of Invention
The invention mainly solves the technical problem of providing a multi-piece playing projector, which can improve the automation degree of the playing process of the lamp pieces and obtain better playing effect.
In order to solve the technical problems, the invention adopts a technical scheme that: a multi-slice playback projector is provided.
Wherein, this projector includes:
at least one lamp sheet containing device for respectively containing a plurality of lamp sheets;
the lamp piece taking and placing device is arranged opposite to the at least one lamp piece containing device so as to grab the preset lamp piece of the lamp piece containing device, play the preset lamp piece and place the played preset lamp piece back to the lamp piece containing device.
The invention has the beneficial effects that: different from the prior art, the lamp piece taking and placing device is matched with the lamp piece taking and placing device which is correspondingly arranged on the lamp piece receiving device, and can take out the preset lamp piece from the lamp piece receiving device and place the preset lamp piece after playing in the lamp piece receiving device. Therefore, the preset lamp piece can be automatically taken out, played and stored, the automation degree of the playing process of the lamp piece is improved, and the popularization and the application of the projector are facilitated.
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 description of the embodiments will be briefly introduced 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 to obtain other drawings based on these drawings without creative efforts. Wherein:
FIG. 1 is a schematic structural diagram of an embodiment of a multi-disc player projector according to the present invention;
fig. 2 is a schematic structural view of an embodiment of the first or second light sheet receiving device according to the present invention;
FIG. 3 is a schematic structural view of an embodiment of a device for picking and placing a lamp sheet according to the present invention;
FIG. 4 is a schematic view of a first view of an embodiment of the electric opening/closing clamping mechanism of the present invention;
FIG. 5 is a schematic view of a second perspective of an embodiment of the electric opening/closing clamping mechanism of the present invention;
FIG. 6 is a schematic view of a first view of an embodiment of the convex column clamping mechanism of the present invention;
fig. 7 is a schematic structural view of a first viewing angle of an embodiment of the convex column clamping mechanism according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a multi-slice projector, the projector includes:
at least one lamp strip receiving device (100 and/or 200) for respectively receiving a plurality of lamp strips; the lamp piece taking and placing device 300 is arranged opposite to at least one lamp piece receiving device (100 and/or 200) so as to grab the preset lamp piece of the lamp piece receiving device (100 and/or 200) for playing, and place the preset lamp piece after playing back to the lamp piece receiving device (100 and/or 200).
In this embodiment, by matching the lamp sheet receiving device (100 and/or 200) for receiving a plurality of lamp sheets with the lamp sheet taking and placing device 300 correspondingly arranged to the lamp sheet receiving device (100 and/or 200), the lamp sheet taking and placing device 300 can take out a predetermined lamp sheet from the lamp sheet receiving device (100 and/or 200) and place the predetermined lamp sheet after the playing is finished in the lamp sheet receiving device (100 and/or 200). Therefore, the preset lamp piece can be automatically taken out, played and stored, the automation degree of the playing process of the lamp piece is improved, and the popularization and the application of the projector are facilitated.
In one embodiment, in order to reduce the size and cost of the multi-disc projector, the number of the lamp sheet receiving devices is one, that is, the lamp sheets are taken out and stored in one lamp sheet receiving device. In another embodiment, in order to increase the capacity of the lamp slice, the number of the lamp slice receiving devices is greater than 1, for example, the number of the lamp slice receiving devices is two, and the lamp slice receiving devices include a first lamp slice receiving device 100 and a second lamp slice receiving device 200 which are respectively located at two sides of the lamp slice taking and placing device 300 and are oppositely arranged. When the number of the lamp piece accommodating devices is more than 1, a preset lamp piece can be taken out from a certain lamp piece accommodating device, and the preset lamp piece is stored in any one lamp piece accommodating device after the playing is finished. The structure of the multi-disc playing projector will be described in detail below by taking the first lamp sheet receiving device 100 and the second lamp sheet receiving device 200, which are respectively located in the lamp sheet taking and placing device 300 and are oppositely disposed, as an example. Of course, the structure of the multi-sheet broadcasting projector having the different number of the lamp housing devices (the number of the lamp housing devices is not 2) may be similar to the following structure.
In the present embodiment, the first lamp sheet accommodating device 100 is configured to accommodate a plurality of lamp sheets; the second lamp sheet receiving device 200 is disposed corresponding to the first lamp sheet receiving device 100 to respectively receive a plurality of lamp sheets; the lamp piece taking and placing device 300 is disposed between the first lamp piece receiving device 100 and the second lamp piece receiving device 200, and is used for taking a predetermined lamp piece in one of the first lamp piece receiving device 100 and the second lamp piece receiving device 200, playing the predetermined lamp piece, and placing the played predetermined lamp piece in the other one of the first lamp piece receiving device 100 and the second lamp piece receiving device 200.
In the present embodiment, a lamp piece taking and placing device 300 capable of taking out a predetermined lamp piece from one of the first lamp piece housing device 100 and the second lamp piece housing device 200 and placing the predetermined lamp piece having been played in the other of the first lamp piece housing device 100 and the second lamp piece housing device 200 is provided between the first lamp piece housing device 100 and the second lamp piece housing device 200 for housing a plurality of lamp pieces. Therefore, the preset lamp piece can be automatically taken out, played and stored, the automation degree of the playing process of the lamp piece is improved, and the popularization and the application of the projector are facilitated.
In another embodiment, referring to fig. 1 and fig. 2 together, fig. 2 is a schematic structural diagram of an embodiment of the first or second light sheet housing apparatus according to the present invention, wherein the first or second light sheet housing apparatus further includes: a plurality of lamp sheet accommodating units 110 for accommodating the plurality of lamp sheets, respectively; a guide rail 400, on which the first or second lamp housing device 100 or 200 is disposed; a stepping motor 500 electrically connected to the first lamp sheet accommodating device 100 or the second lamp sheet accommodating device 200, so as to drive the first lamp sheet accommodating device 100 or the second lamp sheet accommodating device 200 to slide on the guide rail 400, so that the plurality of lamp sheets in the first lamp sheet accommodating device 100 or the second lamp sheet accommodating device 200 are sequentially located at predetermined positions to be grasped as predetermined lamp sheets, or the plurality of lamp sheet accommodating units 110 in the first lamp sheet accommodating device 100 or the second lamp sheet accommodating device 200 are sequentially located at predetermined positions to accommodate the played lamp sheets.
In this embodiment, the first and second light sheet housing apparatuses 100 and 200 are connected to a control apparatus, and receive a command from the control apparatus to move to a predetermined position. Specifically (taking the first light sheet housing device 100 as an example), a distance between the current position of the first light sheet housing device 100 and the preset position is detected, and the first light sheet housing device 100 is controlled to move a corresponding distance on the slide rail 40 to reach the preset position. When the control device controls the first lamp strip accommodating device 100 to move at a constant speed, the movement time of the first lamp strip accommodating device 100 can be controlled to reach the preset position.
Further, in the process of moving the predetermined lamp piece to the preset position, the first lamp piece accommodating device 100 may be moved as a whole, or the lamp piece accommodating unit 110 accommodating the predetermined lamp piece may be moved. Of course, the manner of the first and second light sheet container 100 and 200 for the predetermined light sheet to reach the predetermined position may be the same or different.
Referring to fig. 2, the first or second lamp sheet receiving device 100 or 200 further includes a lamp sheet clipping column 120, and the lamp sheet clipping column 120 penetrates through the first or second lamp sheet receiving device 100 or 200 and is matched with the plurality of lamp sheet receiving units 110 to fix the lamp sheet. The lamp sheet comprises a lamp sheet body; the lamp piece clamp covers the periphery of the lamp piece, and one side of the lamp piece clamp is provided with a piece changing clamping end which is used for being matched with the lamp piece taking and placing device 300 to grab the preset lamp piece; the two adjacent sides of the clip ends are respectively provided with a lamp piece positioning slot for being clipped on the lamp piece clipping column 120 to fix the lamp piece in the first lamp piece receiving device 100 or the second lamp piece receiving device 200. The number of the lamp slice positioning clamping grooves is not less than that of the lamp slice clamping columns 120, and the lamp slice positioning clamping grooves comprise U-shaped grooves and/or V-shaped grooves.
Referring to fig. 3, fig. 3 is a schematic structural diagram of an embodiment of a light sheet taking and placing device according to the present invention, the light sheet taking and placing device includes: a drive mechanism 320; a lamp slice picking and placing mechanism 310, wherein one end of the lamp slice picking and placing mechanism 310 is rotatably connected to the driving mechanism 320, and the other end is provided with a clamping mechanism to rotate to a first direction under the driving of the driving mechanism 320 so as to grab the predetermined lamp slices in the first lamp slice accommodating device 100 and the second lamp slice accommodating device 200; after the predetermined lamp piece is grabbed, the lamp piece picking and placing mechanism 310 resets to a playing position to play the predetermined lamp piece, and rotates to a second direction to place the played predetermined lamp piece on the other of the first lamp piece storage device 100 and the second lamp piece storage device 200 after playing.
In this embodiment, the motion tracks of the lamp piece pick-and-place mechanism 310 may be in one plane or in different planes. In order to simplify the work flow of the projector and further improve the accuracy of taking and placing the lamp slice, the motion track of the lamp slice taking and placing mechanism 310 is in a plane. Specifically, one of the first and second light sheet receiving devices 100 and 200 moves the predetermined light sheet to the preset position, at this time, the light sheet picking and placing mechanism 310 rotates to the first direction and picks up the predetermined light sheet, when the position defining the first direction is the 0 degree position, the playing position is the 90 degree position, and then, the other one of the first and second light sheet receiving devices 100 and 200 moves the light sheet accommodating unit 110 in an empty position to the corresponding position, and correspondingly, the light sheet picking and placing mechanism 310 rotates to the second direction, the second direction is the 180 degree position. That is to say, in the process of taking out, playing and storing the predetermined lamp, the lamp pick-and-place mechanism 310 rotates by 180 degrees, so that the operation is simple, the automation degree is high, the switching speed is high, and the playing effect can be improved. Further, when the lamp pick-and-place mechanism 310 receives the lamp piece that has been played and then takes out the predetermined lamp piece (for example, the first lamp piece receiving device 100), the motion trajectory of the lamp pick-and-place mechanism 310 is from 0 degree position to 90 degrees position to 0 degree position, and the lamp pick-and-place mechanism 310 is also rotated 180 degrees. Of course, in order to obtain a better playing effect, according to the actual requirement of the playing environment, during the process of taking out, playing and storing the predetermined lamp, the rotation of the lamp pick-and-place mechanism 310 may be greater than 180 degrees or less than 180 degrees.
Further, the driving mechanism 320 may be fixedly disposed, or may move between the first lamp sheet accommodating device 100 and the second lamp sheet accommodating device 200 to reach the predetermined lamp sheet position, clamp the predetermined lamp sheet, and accommodate the predetermined lamp sheet in the lamp sheet accommodating unit 110 after the playing is finished. The lamp piece accommodating unit 110 may be a designated lamp piece accommodating unit, or may be any one of vacant lamp piece accommodating units. When the light sheet is projected to a certain scene, the relative distance between the light source and the light sheet has a remarkable influence on the projection effect. If the driving mechanism 320 is moved to grab the predetermined lamp, the driving mechanism 320 needs to be reset to the corresponding position and then the lamp is played, or the distance between the light source and the driving mechanism 320 needs to be adjusted repeatedly. In order to simplify the operation process and improve the fluency of playing, the driving mechanism 320 is fixedly arranged.
In another embodiment, the lamp piece clamping mechanism 310 is used for taking out the predetermined lamp piece, fixing the predetermined lamp piece firmly, and then rotating to the playing position to play the predetermined lamp piece. Specifically, the lamp piece clamping mechanism 310 may be an electric folding clamping mechanism or a convex column clamping mechanism.
Further, referring to fig. 4 and 5, fig. 4 is a schematic structural view of a first viewing angle of an embodiment of the electric opening and closing clamping mechanism of the present invention, fig. 5 is a schematic structural view of a second viewing angle of an embodiment of the electric opening and closing clamping mechanism of the present invention, the electric opening and closing clamping mechanism includes two magnetic clamping sheets (314 and 315), the two magnetic clamping sheets (314 and 315) respectively move one side and the other side of a clamping end of the predetermined lamp piece, the clamping end of the predetermined lamp piece is fixedly connected with the two magnetic clamping sheets under the action of magnetic force, and the predetermined lamp piece is separated from one of the first lamp piece storage device 100 and the second lamp piece storage device 200 under the action of the driving mechanism 320. In this embodiment, the clip end of the predetermined lamp piece is made of metal iron or other material capable of attracting the magnet. Furthermore, the size of the electric opening and closing clamping mechanism is matched with the weight and size of the preset lamp piece, so long as the preset lamp piece can be firmly fixed on the electric opening and closing clamping mechanism. Further, the magnetic clamping pieces (314 and 315) comprise electromagnets which generate magnetism when electrified and fix the preset lamp pieces; when the preset lamp sheet is separated from the magnetic clamping sheets (314 and 315) after the playing is finished, the magnetic force disappears by powering off. Of course, the magnetic clamping pieces (314 and 315) can also comprise permanent magnets, but need to be demagnetized by heating and the like. In order to simplify the structure of the projector, the magnetic clamping sheets (314 and 315) adopt electromagnets to generate magnetic force. In addition, the electric opening and closing clamping mechanism preferably comprises a connecting hole 313 for being rotatably connected with the driving mechanism 320.
Further, referring to fig. 6 and 7, fig. 6 is a schematic structural view of a first viewing angle of an embodiment of the stud clamping mechanism of the present invention, fig. 7 is a schematic structural view of a second viewing angle of an embodiment of the stud clamping mechanism of the present invention, the stud clamping mechanism includes a clamping plate 310 and a stud 311 disposed on the clamping plate, the stud 311 is engaged in a lamp piece positioning hole of the predetermined lamp piece, so that the predetermined lamp piece is fixedly connected to the stud 311, and the predetermined lamp piece is separated from one of the first lamp piece accommodating device 100 and the second lamp piece accommodating device 200 under the action of the driving mechanism 320. In this embodiment, the number of the convex columns 311 is at least two, and in one embodiment, the number of the convex columns 311 is 3, and the three are arranged in a triangle, so that the predetermined lamp piece is more firmly fixed. Of course, the section diameter and height of the convex column can be determined according to actual needs. In addition, the convex column clamping mechanism further comprises a connecting hole 312, and the connecting hole is rotatably connected with the driving mechanism 320.
In another embodiment, the lamp sheet is a high temperature resistant glass lamp sheet. In the process of automatically playing the lamp piece, the lamp piece can be continuously played for 24 hours, and the heating time is long; meanwhile, in order to obtain a more shocking playing effect, the projection light intensity is higher and higher, and the service life of the lamp piece is prolonged while the playing effect is guaranteed by the lamp piece made of the high-temperature-resistant glass.
In another embodiment, referring to fig. 1 again, the projector further includes a projection lamp 700, the projection lamp 700 is used for providing a projection light source of the lamp sheet, and the projection light source is a laser light source. In the self implementation mode, the laser light source is adopted, so that the playing brightness of the lamp piece can be improved, and a better playing effect is obtained. Further, the projector further includes a substrate 800, and the guide rail 400 and the driving mechanism 320 are fixedly disposed on the substrate 800. The substrate 800 is a horizontal substrate, so that the projection position of the lamp sheet in the playing process can be conveniently adjusted, and the playing of the lamp sheet can be efficiently completed.
To sum up, the present invention discloses a multi-slice projector, which comprises: at least one lamp sheet containing device for respectively containing a plurality of lamp sheets; the lamp piece taking and placing device is arranged opposite to the at least one lamp piece containing device so as to grab the preset lamp piece of the lamp piece containing device, play the preset lamp piece and place the played preset lamp piece back to the lamp piece containing device. By the mode, the automation degree of the playing process of the lamp piece can be improved, and a better playing effect is obtained.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A multi-slice projector, the projector comprising:
at least one lamp sheet containing device for respectively containing a plurality of lamp sheets;
the lamp piece taking and placing device is arranged opposite to the at least one lamp piece accommodating device;
the lamp piece taking and placing device comprises:
a drive mechanism;
the lamp piece taking and placing mechanism is rotationally connected with the driving mechanism at one end and provided with a clamping mechanism at the other end so as to rotate to a first direction under the driving of the driving mechanism, so that a preset lamp piece in the lamp piece accommodating device is grabbed; after the lamp piece is grabbed, the lamp piece picking and placing mechanism resets to a playing position to play the preset lamp piece, and rotates to the second direction after playing so as to place the played preset lamp piece in the lamp piece containing device.
2. The projector as claimed in claim 1, wherein the number of the lamp receiving devices is two, and the lamp receiving devices include a first lamp receiving device and a second lamp receiving device which are respectively located at two sides of the lamp taking and placing device and are oppositely arranged.
3. The projector as claimed in claim 2, wherein the first or second lamp strip receiving device further comprises:
the lamp piece accommodating units are respectively used for accommodating the lamp pieces;
the first lamp piece accommodating device or the second lamp piece accommodating device is arranged on the guide rail;
the stepping motor is electrically connected with the first lamp piece receiving device or the second lamp piece receiving device so as to drive the first lamp piece receiving device or the second lamp piece receiving device to slide on the guide rail, so that the plurality of lamp pieces in the first lamp piece receiving device or the second lamp piece receiving device are sequentially located at preset positions to be taken as preset lamp pieces to be grabbed, or the plurality of lamp piece accommodating units in the first lamp piece receiving device or the second lamp piece receiving device are sequentially located at preset positions to accommodate the played preset lamp pieces.
4. The projector as claimed in claim 3, wherein the first or second light sheet receiving device further comprises a light sheet clipping post penetrating the first or second light sheet receiving device to cooperate with the plurality of light sheet receiving units to fix the light sheet.
5. The projector as defined in claim 2 wherein the gripper mechanism comprises an electrically operated open and close gripper mechanism.
6. The projector as defined in claim 2 wherein the gripper mechanism comprises a convex post gripper mechanism.
7. The projector as claimed in claim 5, wherein the electric opening/closing clamping mechanism comprises two magnetic clamping pieces, the two magnetic clamping pieces are used for respectively moving one side and the other side of the clamping part of the predetermined lamp piece, the clamping part of the predetermined lamp piece is fixedly connected with the two magnetic clamping pieces under the action of magnetic force, and the predetermined lamp piece is separated from one of the first lamp piece accommodating device and the second lamp piece accommodating device under the action of the driving mechanism.
8. The projector as claimed in claim 6, wherein the stud clipping mechanism includes a clipping plate and a stud disposed on the clipping plate, the stud is engaged in the lamp piece positioning hole of the predetermined lamp piece, so that the predetermined lamp piece is fixedly connected to the stud, and the predetermined lamp piece is separated from one of the first lamp piece receiving device and the second lamp piece receiving device by the driving mechanism.
9. The projector as claimed in claim 1, wherein the lamp sheet is a high temperature resistant glass lamp sheet.
10. The projector as claimed in claim 1, further comprising a projection lamp for providing a projection light source of the lamp sheet, wherein the projection light source is a laser light source.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811045570.7A CN110888297B (en) | 2018-09-07 | 2018-09-07 | Multi-disc broadcast projector |
| PCT/CN2019/081641 WO2020048121A1 (en) | 2018-09-07 | 2019-04-08 | Multi-slide show projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811045570.7A CN110888297B (en) | 2018-09-07 | 2018-09-07 | Multi-disc broadcast projector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110888297A CN110888297A (en) | 2020-03-17 |
| CN110888297B true CN110888297B (en) | 2021-08-17 |
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ID=69722244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811045570.7A Active CN110888297B (en) | 2018-09-07 | 2018-09-07 | Multi-disc broadcast projector |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110888297B (en) |
| WO (1) | WO2020048121A1 (en) |
Citations (6)
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|---|---|---|---|---|
| CN87101754A (en) * | 1986-03-06 | 1987-09-16 | 欧洲原子能联营 | Store and handle the device of lantern slide |
| US5440362A (en) * | 1994-04-22 | 1995-08-08 | Jones; Jeffrey S. | Transparency display system |
| JP3159529B2 (en) * | 1992-07-20 | 2001-04-23 | オリンパス光学工業株式会社 | Projection equipment |
| CN1711441A (en) * | 2002-11-15 | 2005-12-21 | 罗布舞台照明公司 | Equipment for a change of rotary gobos |
| CN201600546U (en) * | 2010-03-15 | 2010-10-06 | 杨旭 | Assistant instrument for Chinese language teaching |
| CN106125493A (en) * | 2016-09-13 | 2016-11-16 | 张国阳 | A kind of lantern slide delivery device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4329027A (en) * | 1980-10-17 | 1982-05-11 | Autologic, S.A. | Photocomposing machine and method |
| US4389103A (en) * | 1981-07-24 | 1983-06-21 | Source Technology Corporation | Slide projector having two image-projection systems which operate with a single slide tray |
| JP2001215635A (en) * | 2000-02-02 | 2001-08-10 | Sony Corp | Slide supply device |
| CN100472124C (en) * | 2007-11-29 | 2009-03-25 | 北京星光影视设备科技股份有限公司 | Stage filmstrip machine |
| CN108320589B (en) * | 2018-02-11 | 2021-01-26 | 深圳市华拓科技有限公司 | Remote full-automatic intelligent teaching display system |
-
2018
- 2018-09-07 CN CN201811045570.7A patent/CN110888297B/en active Active
-
2019
- 2019-04-08 WO PCT/CN2019/081641 patent/WO2020048121A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87101754A (en) * | 1986-03-06 | 1987-09-16 | 欧洲原子能联营 | Store and handle the device of lantern slide |
| US4746209A (en) * | 1986-03-06 | 1988-05-24 | European Atomic Energy Community (Euratom) | Device for storing and handling slides |
| JP3159529B2 (en) * | 1992-07-20 | 2001-04-23 | オリンパス光学工業株式会社 | Projection equipment |
| US5440362A (en) * | 1994-04-22 | 1995-08-08 | Jones; Jeffrey S. | Transparency display system |
| CN1711441A (en) * | 2002-11-15 | 2005-12-21 | 罗布舞台照明公司 | Equipment for a change of rotary gobos |
| CN201600546U (en) * | 2010-03-15 | 2010-10-06 | 杨旭 | Assistant instrument for Chinese language teaching |
| CN106125493A (en) * | 2016-09-13 | 2016-11-16 | 张国阳 | A kind of lantern slide delivery device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110888297A (en) | 2020-03-17 |
| WO2020048121A1 (en) | 2020-03-12 |
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