CN101853602B - Laser celestial globe - Google Patents
Laser celestial globe Download PDFInfo
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- CN101853602B CN101853602B CN201010181274A CN201010181274A CN101853602B CN 101853602 B CN101853602 B CN 101853602B CN 201010181274 A CN201010181274 A CN 201010181274A CN 201010181274 A CN201010181274 A CN 201010181274A CN 101853602 B CN101853602 B CN 101853602B
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- constellation
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Abstract
The invention discloses a laser celestial globe which takes a diode as a basic light source to generate starry sky images and can carry out starry sky effect demonstration indoors in any lighting condition because of adopting a special point light source. Because of miniaturization of a dome and foldable type, the invention can carry out demonstration in places with common space, such as classrooms, laboratories, and the like. A constellation projection device has special mechanical design, a constellation projection ball is driven by an engine to simulate the rotation of starry sky and a projection star map can be regulated according to latitude to dynamically demonstrate the position change of stars, thereby the invention can satisfy the demands that people in different latitude areas can study the relation between starry sky apparent motion change and earth rotation and greatly satisfies the scientific inquiry desire of observers. Due to the specialization of the light source, no need for avoiding light in a demonstration environment, miniaturization, the foldable design of the dome and the low manufacturing cost, the invention is very easy to truly popularize astronomy popular science education in common middle and primary schools.
Description
Technical field
The present invention relates to a kind of instruments used for education, specifically is a kind of laser celestial globe.
Background technology
Utilize the instrument kind of penetrating optical tech, microelectronics program play-back technology reflection starry sky more at present, comprise spherical screen stereoscopic film, the professional astrology Room etc.Their common feature is that the full secret note part of lucifuge is play.The complete general education and instruction place of this particular surroundings of secret note part all can't reach, and professional ball curtain take up an area of roomy, involve great expense, regular primary and secondary schools can't realize.Therefore, perplexing most middle and primary schools about the teaching of starry sky knowledge for many years always.Current, about starry sky knowledge, that do not limit the daylighting condition, cheap and effectively instruments used for education international and domestic all still be blank.
Summary of the invention
The present invention seeks to: when being provided, a kind of use do not limit the daylighting condition, and easy to operate, and cheap laser celestial globe.
Technical scheme of the present invention is: a kind of laser celestial globe; Comprise dome and the constellation grenade instrumentation of being located in the dome; Said constellation penetrating apparatus comprises constellation projection ball, shading hemisphere, highly regulates support and electric-controlled parts; Said constellation projection ball partly is absorbed in the shading hemisphere, and shading hemisphere then is fixed on highly to be regulated on the support; The surface of said constellation projection ball is provided with some laser diodes that are used for producing to the dome projection celestial body, and each laser diode becomes constellation to the celestial body of dome diverse location projection by the celestial body exact arrangement; Said constellation throws ball center mandrel is set; Be used to drive it around the power drive mechanism that mandrel rotate and be equipped with in the constellation projection ball, be equipped with in the said shading hemisphere simultaneously and be used to drive the latitude governor motion that constellation projection ball rotates around its horizontal center line axis; Said electric-controlled parts comprises the control main board that is electrically connected with said power drive mechanism and each laser diode and the telepilot that is connected with remote controller signal receiver module communication on the control main board.
Further; The mechanism of power drive described in the present invention comprises motor, driving gear, annular wheel, transmission gear, is fixed with the motor loading plate on the said mandrel, and said motor is fixed on the motor loading plate; Said driving gear is fixed on the motor output shaft; Said annular wheel is fixed on the constellation projection ball, and concentric with mandrel, and said driving gear is through transmission gear and annular wheel engagement; And said latitude governor motion comprises two latitudes adjusting braces and latitude release handle; Said shading hemisphere is provided with two relative outer connecting holes, and the line of these two outer connecting holes overlaps with the horizontal center line axis of constellation projection ball; And an end of said latitude adjusting brace is provided with interconnecting hole; Said outer connecting hole and interconnecting hole flexibly connect through screw; And the other end of said latitude adjusting brace links to each other with the latitude release handle; And the upper end of said latitude release handle is fixed with the mandrel that stretches out constellation projection ball or is fused, and the sliding mouth of latitude adjusting that shading hemisphere is provided with is then passed in the lower end of latitude release handle.
Further; The projection of constellation described in the present invention bag is drawn together north day constellation projection hemisphere and the Nan Tian's constellation projection hemisphere that fixes; The north pole center of wherein said north day constellation projection hemisphere surface is provided with the laser diode as Polaris projection source; Be fixed with first loading plate on the inside surface of said north day constellation projection hemisphere, said annular wheel is fixed on this first loading plate, and is fixed with second loading plate on the inside surface of Nan Tian's constellation projection hemisphere; Be fixed with control main board on said second loading plate; Said mandrel passes first, second loading plate successively, and mandrel upper end withstands on the north pole center of north day constellation projection hemisphere, and Nan Tian's constellation projection hemisphere is stretched out in the lower end and fix with the latitude release handle or fuse.
Further again; Also be fixed with laser diode driver and the power supply of remote controller that is electrically connected with control main board described in the present invention on second loading plate; And said latitude release handle is provided with the rotary power source joint, and said laser diode driver and power supply of remote controller all are electrically connected with the rotary power source joint.
Further, the release handle of latitude described in the present invention is provided with latitude and regulates knob.
Further, the bottom of the dome among the present invention also is fixed with some height and regulates support.
Further; Highly regulate support described in the present invention and comprise column, elevating lever, chase after tight screw and base, said column is fixed on the base, and said elevating lever upper end is fixed on shading hemisphere bottom; Be located in the column and the lower end is telescopic, saidly chase after the horizontal cross-under of tight screw in the column side.
Further; Laser diode described in the present invention is the pointolite laser diode; Said control main board is passed through the light and shade of the pointolite laser diode or the constant current source control projection light of different capacity, locatees through luminous point and representes the planisphere picture, representes the celestial body grade through the luminous point size.
Further, the present invention utilizes laser point light source and grating technology to combine to present line planisphere picture, the mythical image of constellation, acousto-optic and dynamic common reaction starry sky effect.
Further, dome described in the present invention specifically is made up of folded form umbrella formula skeleton and the domed-face that is fixed on the folded form umbrella formula skeleton for the folding dome of umbrella frame posture, and it is easy to fold, and does not take up space when depositing.Said domed-face is weaved cotton cloth by routine and is processed, and perhaps also can be processed by Polypropylence Sheet.
The present invention adopts common 220V single phase alternating current power supply when concrete the use, electric current inserts in the constellation projection ball from the rotary power source joint through electric wire, connects laser diode and power supply of remote controller respectively.The direct supply of laser diode driver output 7.5V, 13A.The power of each laser diode is 3～5V, 40mA, per two laser diodes series connection, and then parallel connection.The cathode circuit of said laser diode driver is pressed in the constellation main star and is formed group's circuit; As required; The constellation of particular importance; Distinguish the grouping wiring hole of Access Control mainboard like the constellation positive circuit of more than 20 the single demonstrations of needs such as Ursa Minor, ursa major, Cassiopeia (Cas), Orion; Grouping cathode circuit on the control main board converges into the single line road and inserts the anodal wiring hole on the laser diode driver, and the grouping negative pole circuit on the control main board is unified merger at a circuit and turn on the laser diode driver negative pole.Each constellation is as required by telepilot control demonstration.Motor power consumption in the power drive mechanism is 12V, 0.8A, and the power consumption of control main board also is 12V, 0.8A, and motor and control main board all insert in the power supply of remote controller, and the output power of said power supply of remote controller is 12V, 2A.
The present invention mainly applies to the teaching of middle and primary schools about starry sky knowledge; The astronomical Popular Science Education in social education place; Be the general instruments used for education about astronomical Popular Science Education, it is used for analog demenstration sky constellation diurnal motion relation, the different starry sky of Various Seasonal people's finding, the different starry sky of different latitude people's finding and reason thereof.Use representative instance of the present invention is following:
Existing " primary school course of study standard " and " the primary school course of study standard " revised are all clearly proposing about universe, astronomic knowledge invention; Require the pupil to observe starry sky, understand groups of stars around the relation of Polaris rotation with earth rotation; As long as laser celestial globe is opened; Let constellation projection ball slowly rotate along clockwise direction, we will see on the canopy of the heavens that whole starry sky all being that central point slowly rotates from the east orientation west with Polaris, just demonstrates out the effect that groups of stars rotate around Polaris; Rotate and suitable explanation in conjunction with terrestrial globe, " secret that Polaris is motionless " nature is opened.
If instrument is installed and the alignment of orientation of local ground; The season and the moment that combine there and then again; The planisphere picture that can more truly present locality sky on that night; Help planisphere picture that the instrument user presents instrument the vault of heaven and actual sky planisphere as paired observation and research, can be familiar with common constellation very soon, understand the characteristics of motion of starry sky very soon.Utilize this instrument to instruct students in middle and primary schools to observe starry sky, can receive magical effect.
Advantage of the present invention is:
1. the present invention utilizes the light source of laser diode as celestial body projection, clear picture, and indoor under any logical optical condition all can be throwed on dome clearly, do not limit the daylighting condition.
2. the laser diode among the present invention can press the constellation diverse location projection that star is formed to the dome of the sphere external space, thereby omnibearing projection forms the planisphere picture owing to be installed on the rotatable sphere.Simultaneously said constellation projection ball can slowly rotate around the mandrel of its sky, north and south extreme direction; The phenomenon of dynamic reflection starry sky " the stars change in positions "; And because special Machine Design; Constellation projection ball can also carry out " latitude " to be regulated, and is used in the guidance that starry sky is familiar with in the different latitude area on the spot, and the people that demonstrate different latitude area on the earth can see specific starry sky scope throughout the year.This shows that the present invention demonstrates operates very conveniently, can be effectively introduce annual apparent motion, the diurnal motion relation of starry sky to the student.
3. the dome among the present invention is collapsible; And but constellation grenade instrumentation field stripping and assembling do not need special use to carry out the place, are well suited for the astronomical teaching content and have the use of periodic middle and primary schools; And the present invention is simple in structure, cheap, is easy to popularize use in regular primary and secondary schools.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further described:
Fig. 1 is a user mode structural representation of the present invention;
Fig. 2 is the constellation grenade instrumentation one-piece construction synoptic diagram among the present invention;
Fig. 3 is day constellation projection semiglobe synoptic diagram of the north among the present invention;
Fig. 4 is Fig. 3 upward view;
Fig. 5 is the Nan Tian's constellation projection semiglobe synoptic diagram (comprising mandrel, power drive mechanism and electric-controlled parts) among the present invention;
Fig. 6 is the vertical view of Fig. 5;
Fig. 7 is the gear transmission structure synoptic diagram of the power drive mechanism among the present invention;
Fig. 8 is the shading semiglobe synoptic diagram (comprise and highly regulate support and latitude governor motion) among the present invention;
Fig. 9 is the vertical view of Fig. 8.
Wherein: 1, dome; 2, constellation projection ball; 2a, north day constellation projection hemisphere; 2b, Nan Tian's constellation projection hemisphere; 3, shading hemisphere; 4, highly regulate support; 4a, column; 4b, elevating lever; 4c, chase after tight screw; 4d, base; 5, laser diode; 6, mandrel; 7, control main board; 8, telepilot; 9, motor; 10, driving gear; 11, annular wheel; 12, transmission gear; 13, motor loading plate; 14, latitude is regulated brace; 15, latitude release handle; 16, outer connecting hole; 17, interconnecting hole; 18, latitude is regulated sliding mouthful; 19, first loading plate; 20, second loading plate; 21, laser diode driver; 22, power supply of remote controller; 23, rotary power source joint; A, constellation; N, Polaris.
Embodiment
Embodiment: at first combine Fig. 1, shown in Figure 2; This laser celestial globe that present embodiment provides; Comprise dome 1 and the constellation grenade instrumentation of being located in the dome 1; Said constellation penetrating apparatus comprises constellation projection ball 2, shading hemisphere 3, highly regulates support 4 and electric-controlled parts, and said constellation projection ball 2 half is absorbed in the shading hemisphere 3, and 4 of shading hemisphere are fixed on highly to be regulated on the support 4; The surface of said constellation projection ball 2 is provided with some laser diodes 5 that are used for producing to dome 1 projection celestial body, and each laser diode 5 becomes constellation A to the celestial body of dome 1 diverse location projection by the celestial body exact arrangement; Laser diode 5 in the present embodiment is the pointolite laser diode.Said constellation projection ball 2 centers are provided with mandrel 6; Be used to drive its power drive mechanism and be equipped with in the constellation projection ball 2, be equipped with in the said shading hemisphere 3 simultaneously and be used to drive the latitude governor motion of constellation projection ball 2 around its horizontal center line axis rotation around mandrel 6 rotations.
Further combine Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and shown in Figure 7; The described constellation projection of present embodiment ball is formed through screw retention by north day constellation projection hemisphere 2a and Nan Tian constellation projection hemisphere 2b edge; Wherein the north pole center on day constellation projection hemisphere 2a surface, north is provided with the laser diode (specifically not marking among the figure) as Polaris projection source, can on dome 1, corresponding projection produce Polaris N.Be fixed with first loading plate 19 on the inside surface of said north day constellation projection hemisphere 2a; And be fixed with second loading plate 20 on the inside surface of the constellation projection hemisphere 2b of Nan Tian; Said mandrel 6 passes first, second loading plate 19,20 successively; And mandrel 6 upper ends withstand on the north pole center of north day constellation projection hemisphere 2a, and the constellation projection hemisphere 2b of Nan Tian is stretched out in the lower end.The mechanism of power drive described in the present embodiment is made up of motor 9, driving gear 10, annular wheel 11, transmission gear 12 and motor loading plate 13; Said motor loading plate 13 is fixed on the mandrel 6; Said motor 9 is fixed on the motor loading plate 13, and said driving gear 10 is fixed on motor 9 output shafts, and said annular wheel 11 is fixed on first loading plate 19; And concentric with mandrel 6, said driving gear 10 is through transmission gear 12 and annular wheel 11 engagements.
Combine Fig. 2, Fig. 5, Fig. 6, Fig. 8 and shown in Figure 9 again, the governor motion of latitude described in the present embodiment comprises two latitudes adjusting braces 14 and latitude release handle 15; Said shading hemisphere 3 is provided with two relative outer connecting holes 16, and the line of these two outer connecting holes 16 overlaps with the horizontal center line axis of constellation projection ball 2; And an end of said latitude adjusting brace 14 is provided with interconnecting hole 17; Said outer connecting hole 16 flexibly connects through screw with interconnecting hole 17; And the other end of said latitude adjusting brace 14 links to each other with latitude release handle 15; And the upper end of said latitude release handle 15 fuses with the mandrel 6 that stretches out constellation projection ball 2, and the sliding mouth 18 of latitude adjusting that shading hemisphere 3 is provided with is then passed in the lower end of latitude release handle 15.
Combine Fig. 1, Fig. 2, Fig. 5 and shown in Figure 6 again, the said electric-controlled parts in the present embodiment comprises control main board 7, telepilot 8, laser diode driver 21 and power supply of remote controller 22; Said control main board 7, laser diode driver 21 and power supply of remote controller 22 all are fixed on second loading plate 20 in the constellation projection hemisphere 2b of Nan Tian.Wherein control main board 7 is electrically connected with motor 9 and each laser diode 5, and said telepilot 8 is connected with remote controller signal receiver module communication on the control main board 7.Said latitude release handle 15 is provided with rotary power source joint 23, and said laser diode driver 21 all is electrically connected with rotary power source joint 23 with power supply of remote controller 22, and simultaneously said laser diode driver 21 also is electrically connected with control main board 7 with power supply of remote controller 22.Present embodiment adopts common 220V single phase alternating current power supply when concrete the use, electric current inserts in the constellation projection ball 2 from rotary power source joint 23 through electric wire, connects laser diode driver 21 and power supply of remote controller 22 respectively.The direct supply of laser diode driver 21 output 7.5V, 13A.The power of each laser diode 5 is 3～5V, 40mA, per two laser diodes, 5 series connection, and then parallel connection.The cathode circuit of said laser diode driver 21 is pressed in the constellation main star and is formed group's circuit; As required; The constellation of particular importance; Distinguish the grouping wiring hole of Access Control mainboard 7 like the constellation positive circuit of more than 20 the single demonstrations of needs such as Ursa Minor, ursa major, Cassiopeia (Cas), Orion; Grouping cathode circuit on the control main board 7 converges into the single line road and inserts the anodal wiring hole on the laser diode driver 21, and the grouping negative pole circuit on the control main board 7 is unified merger at a circuit and turn on laser diode driver 21 negative poles.Each constellation is as required by telepilot 8 control demonstrations.Motor 9 power consumptions in the power drive mechanism are 12V, 0.8A, and the power consumption of control main board 7 also is 12V, 0.8A, and motor 9 all inserts in the power supply of remote controller 22 with control main board 7, and the output power of said power supply of remote controller 22 is 12V, 2A.
Dome described in the present embodiment 1 is the folding dome of umbrella frame posture, and specifically by folded form umbrella formula skeleton (invisible among the figure) and the domed-face formation that is fixed on the folded form umbrella formula skeleton, it is easy to fold, and does not take up space when depositing.Said domed-face is weaved cotton cloth by routine and is processed.And 1 bottom of the dome in the present embodiment also is fixed with some height and regulates support 4; Said height regulate support 4 with routine techniques the same by column 4a, elevating lever 4b, chase after tight screw 4c and base 4d; Said column 4a is fixed on the base 4d; Said elevating lever 4b upper end is fixed on shading hemisphere 3 bottoms, is located in the column 4a and the lower end is telescopic, saidly chases after the horizontal cross-under of tight screw 4c in column 4a side.
The advantage of present embodiment is following:
1) utilize the light source of laser diode 5 as celestial body projection, clear picture, indoor under any logical optical condition all can be throwed on dome clearly, do not limit the daylighting condition.And laser diode described in the present embodiment 5 is the pointolite laser diode preferably; Said control main board 7 is through the light and shade of constant current source control projection light; Locate through luminous point and to represent the planisphere picture; Represent the celestial body grade through the luminous point size, utilize laser point light source and grating technology to combine and present line planisphere picture, the mythical image of constellation.
2) laser diode 5 can press the constellation diverse location projection that star is formed to the dome 1 of the sphere external space, thereby omnibearing projection forms the planisphere picture owing to be installed on the rotatable sphere.Simultaneously said constellation projection ball 2 can slowly rotate around the mandrel of its sky, north and south extreme direction; The phenomenon of dynamic reflection starry sky " the stars change in positions "; And because special Machine Design; Constellation projection ball 2 can also carry out " latitude " to be regulated, and is used in the guidance that starry sky is familiar with in the different latitude area on the spot, and the people that demonstrate different latitude area on the earth can see specific starry sky scope throughout the year.This shows that the present invention demonstrates operates very conveniently, can be effectively introduce annual apparent motion, the diurnal motion relation of starry sky to the student.
3) dome 1 is collapsible, but and constellation grenade instrumentation field stripping and assembling do not need special use to carry out the place, be well suited for the astronomical teaching content to have periodic middle and primary schools and use, and the present invention is simple in structure, cheap, be easy to popularize and use in regular primary and secondary schools.
Certainly above embodiment only is a concrete exemplary applications of the present invention, and protection scope of the present invention is not constituted any limitation.Except that the foregoing description, the present invention can also have other embodiment.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within the present invention's scope required for protection.
Claims (9)
1. laser celestial globe; It is characterized in that comprising dome (1) and be located at the constellation grenade instrumentation in the dome (1); Said constellation penetrating apparatus comprises constellation projection ball (2), shading hemisphere (3), highly regulates support (4) and electric-controlled parts; Said constellation projection ball (2) partly is absorbed in the shading hemisphere (3), and shading hemisphere (3) then is fixed on highly to be regulated on the support (4); The surface of said constellation projection ball (2) is provided with some laser diodes (5) that are used for producing to dome (1) projection celestial body, and each laser diode (5) becomes constellation (A) to the celestial body of dome (1) diverse location projection by the celestial body exact arrangement; Said constellation projection ball (2) center is provided with mandrel (6); Be used to drive its power drive mechanism and be equipped with in the constellation projection ball (2), be equipped with in the said shading hemisphere (3) simultaneously and be used to drive the latitude governor motion of constellation projection ball (2) around its horizontal center line axis rotation around mandrel (6) rotation; Said electric-controlled parts comprises the control main board (7) that is electrically connected with said power drive mechanism and each laser diode (5) and the telepilot (8) that is connected with remote controller signal receiver module communication on the control main board (7).
2. laser celestial globe according to claim 1; It is characterized in that said power drive mechanism comprises motor (9), driving gear (10), annular wheel (11), transmission gear (12); Be fixed with motor loading plate (13) on the said mandrel (6); Said motor (9) is fixed on the motor loading plate (13), and said driving gear (10) is fixed on motor (9) output shaft, and said annular wheel (11) is fixed on the constellation projection ball (2); And concentric with mandrel (6), said driving gear (10) is through transmission gear (12) and annular wheel (11) engagement; And said latitude governor motion comprises two latitudes adjusting braces (14) and latitude release handle (15); Said shading hemisphere (3) is provided with relative two outer connecting holes (16), and the line of these two outer connecting holes (16) overlaps with the horizontal center line axis of constellation projection ball (2); And an end of said latitude adjusting brace (14) is provided with interconnecting hole (17); Said outer connecting hole (16) and interconnecting hole (17) flexibly connect through screw; And the other end of said latitude adjusting brace (14) links to each other with latitude release handle (15); And the upper end of said latitude release handle (15) is fixed with the mandrel (6) that stretches out constellation projection ball (2) or is fused, and the latitude adjusting sliding mouthful (18) that shading hemisphere (3) is provided with is then passed in the lower end of latitude release handle (15).
3. laser celestial globe according to claim 2; It is characterized in that said constellation throws bag and draws together north day constellation projection hemisphere (2a) and the Nan Tian's constellation projection hemisphere (2b) that fixes; The north pole center on day constellation projection hemisphere (2a) surface, wherein said north is provided with the laser diode as Polaris projection source; Be fixed with first loading plate (19) on the inside surface of said north day constellation projection hemisphere (2a); Said annular wheel (11) is fixed on this first loading plate (19); And be fixed with second loading plate (20) on the inside surface of Nan Tian's constellation projection hemisphere (2b), and being fixed with control main board (7) on said second loading plate (20), said mandrel (6) passes first, second loading plate (19,20) successively; And mandrel (6) upper end withstands on the north pole center of north day constellation projection hemisphere (2a), and Nan Tian's constellation projection hemisphere (2b) is stretched out in the lower end and fixing or fuse with latitude release handle (15).
4. laser celestial globe according to claim 3; It is characterized in that also being fixed with on said second loading plate (20) laser diode driver (21) and the power supply of remote controller (22) that are electrically connected with control main board (7); And said latitude release handle (15) is provided with rotary power source joint (23), and said laser diode driver (21) and power supply of remote controller (22) all are electrically connected with rotary power source joint (23).
5. laser celestial globe according to claim 1 is characterized in that dome (1) bottom also is fixed with some height and regulates support (4).
6. according to claim 1 or 5 described laser celestial globes; It is characterized in that said height adjusting support (4) comprises column (4a), elevating lever (4b), chases after tight screw (4c) and base (4d); Said column (4a) is fixed on the base (4d); Said elevating lever (4b) upper end is fixed on shading hemisphere (3) bottom, is located in the column (4a) and the lower end is telescopic, said chase after tight screw (4c) laterally cross-under in column (4a) side.
7. laser celestial globe according to claim 1; It is characterized in that said laser diode (5) is the pointolite laser diode; Said control main board (7) is through the light and shade of the pointolite laser diode or the constant current source control projection light of different capacity; Locate through luminous point and to represent the planisphere picture, represent the celestial body grade through the luminous point size.
8. laser celestial globe according to claim 7 is characterized in that utilizing laser point light source and grating technology to combine and presents line planisphere picture, the mythical image of constellation, acousto-optic and dynamic common reaction starry sky effect.
9. according to claim 1 or 5 described laser celestial globes, it is characterized in that said dome (1) is the folding dome of umbrella frame posture.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010181274A CN101853602B (en) | 2010-05-25 | 2010-05-25 | Laser celestial globe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010181274A CN101853602B (en) | 2010-05-25 | 2010-05-25 | Laser celestial globe |
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| CN101853602A CN101853602A (en) | 2010-10-06 |
| CN101853602B true CN101853602B (en) | 2012-10-17 |
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| CN104599584B (en) * | 2014-12-24 | 2018-04-20 | 惠州学院 | A kind of transit method search is the apparatus for demonstrating of outer planet |
| CN106023783A (en) * | 2016-08-02 | 2016-10-12 | 合肥东上多媒体科技有限公司 | Laser celestial globe |
| CN106094399B (en) * | 2016-08-16 | 2018-04-03 | 合肥东上多媒体科技有限公司 | A kind of star chart projecting apparatus |
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| CN201838251U (en) * | 2010-05-25 | 2011-05-18 | 苏州育龙科教设备有限公司 | Laser celestial globe |
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| JP2729021B2 (en) * | 1993-10-13 | 1998-03-18 | 株式会社日立製作所 | Method and apparatus for drawing an image by superimposing on starry sky with laser |
| CN2552113Y (en) * | 2002-07-31 | 2003-05-21 | 中教软件股份有限公司 | Electric globe |
| CN2798225Y (en) * | 2005-04-13 | 2006-07-19 | 万水根 | Dynamic globe |
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| CN201838251U (en) * | 2010-05-25 | 2011-05-18 | 苏州育龙科教设备有限公司 | Laser celestial globe |
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