CN2127185Y - Teaching slide show for children - Google Patents
Teaching slide show for children Download PDFInfo
- Publication number
- CN2127185Y CN2127185Y CN 92228180 CN92228180U CN2127185Y CN 2127185 Y CN2127185 Y CN 2127185Y CN 92228180 CN92228180 CN 92228180 CN 92228180 U CN92228180 U CN 92228180U CN 2127185 Y CN2127185 Y CN 2127185Y
- Authority
- CN
- China
- Prior art keywords
- condenser
- projection mirror
- fixed
- utility
- spool
- 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
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- Toys (AREA)
- Projection Apparatus (AREA)
Abstract
The utility model belongs to a book reading tool, which is mainly composed of a bottom board, a bearing board for a supporting frame and, a book pressing arm, and the utility model especially adopts an adjustable butterfly supporting frame and steel balls which can be used to slide are arranged under the bottom board. The utility model has the advantages of simple structure, and is suitable for the reading when products which are processed by a plurality of materials and have different specifications are used. The reading device can slide on a table top flexibly, and the abrasion of books is reduced. Simultaneously, the books are put on the reading device at an angle, and the usage angle can be adjusted according to people. The utility model can prevent the fatigue of eyes, is suitable for study rooms in families, and is also suitable for large-scale libraries.
Description
The utility model is a kind of family teaching aid and toy, uses for children's study and amusement.
Magic lantern is for the exploitation children's intelligence, and advancement of knowledge has important effect, can reach the purpose of teaching through lively activities, and makes children acquire various general knowledge and knowledge in recreation, cultivates various technical ability and interest.
Existing slide projector price general charged is more expensive, and for easy to use, mechanism also becomes increasingly complex, and therefore, is difficult to enter family, allows children use magic lantern to grasp knowledge and skills personally.
The purpose of this utility model is that a kind of price of exploitation is low, and general family can afford, and is simple and reliable for structure, easy to use, the slide projector that the preschool child can be used.
The utility model uses the multiple tygon of OPP to replace present employed lantern slide material.Make long paper rather than individual, the system lantern slide adopts printing process to make.The disc changing mechanism of slide projector adopts spool, can show the spool manual operation continuously.
The light source of slide projector adopts pocket lamp bulb, and the power supply working voltage is the 6.2v transformer.
Optical system has only used two simple optical accuracy not require too high convex lens.One as light source condenser, and near bulb one end, another is the projection mirror.
From the scheme that above the utility model is taked, as can be seen, this slide projector film is cheap, simple in structure, easy to operate.Power saving, safety.Being fit to children uses.
Below in conjunction with accompanying drawing the utility model juvenile being learnt magic lantern elaborates.
Fig. 1 is the structure diagram of juvenile's slide projector.
As can be seen from Figure 1, whole slide projector is by shell (5), the light source condenser assembly, and film and winding mechanism and projection mirror assembly four parts are formed.Shell (5) can the square or various moulding in the side of making, and the surface is beautified, and meets psychological characteristic of children.Material can be selected iron sheet for use, or adopts the integral plastics injection mo(u)lding.Shell (5) left end center has circular hole so that inside and outside sleeve (8) and (9) of condenser (1) are installed, and condenser inner sleeve (9) is fixed on the shell (5), and condenser (1) is fixed on the front end of inner sleeve (9).Condenser outer sleeve (8) can be gone up at inner sleeve (9) and slide, and adjusts the light power.The focal length of the focal distance ratio projection mirror (2) of condenser (1) is short, bulb (3) is fixed on the condenser outer sleeve (8), is power supply and the light source safety that makes slide projector, low, the power saving of heat, we adopt the bulb of electric torch to make light source, use the 22v AC power, bulb (3) adopts the 6.2v bulb, and adopting output voltage is the transformer of 6.2v, latch is directly installed on the transformer, therefore the voltage that enters slide projector is low pressure, and human body is safe from danger, and directly adopts dry cell also can certainly.
Winding mechanism is made of two spools (10), the filstrip of rolling (4) twists on the spool (10), rotating arbitrary spool with hand can make film (4) move up and down, for making picture effect good, film hanger rack (11) is housed between two spools (10), makes film (4) be in plumbness.Film (4) adopts the multiple polyethylene film of OPP or PVC cellophane cover or similar material.Cheap, quality is soft, transparency is good, can fold, reel, and does not influence image quality.Pattern and literal can adopt plastic printing technology, are cut into similar photo film after printed, directly are contained in spool (10) and go up and use, and can show continuously.
The projection mirror assembly is by projection mirror inner sleeve (6), and projection mirror outer sleeve (7) is shown mirror (2) and projection mirror bush support (12) is formed.The front end of projection mirror outer sleeve (6) is fixed with projection mirror (2), and inner sleeve (6) can slide in outer sleeve (7), and inner sleeve (6) inwall should be a black, to avoid halation.
The installation of whole slide projector should make light source center, and condenser center, film center, projection mirror center are on same straight line, and lens, the section of film straight line therewith are vertical and be parallel to each other.
Film should be between the focal length of projection mirror and two times of focal lengths from the distance of projection lens, and is good more near focal length more.
Can adopt between condenser inside and outside sleeve (8), (9) and projection mirror inside and outside sleeve (6), (7) to be slidingly matched, also can adopt spiral to connect, make condenser inner sleeve (8) and projection mirror inner sleeve (6) scalable.
Claims (2)
1, a kind of juvenile's magic lantern is by shell (5), spool disc changing mechanism, the light source condenser assembly, the projection mirror assembly constitutes, and it is characterized in that: employed film is the lantern slide (4) that adopts the continuous rolling that the multiple polyethylene film of OPP makes, on spool (10); Light source adopts 6.2V pocket lamp bulb (3), and bulb (3) is fixed on the condenser inner sleeve (8); Condenser (1) is fixed on the front end of condenser outer sleeve (9), and condenser outer sleeve (9) is fixed on the rear end of shell (5); Projection mirror outer sleeve (7) is fixed on shell (5) front end, and projection mirror inner sleeve (6) front end is fixed with projection mirror (2); Condenser inside and outside sleeve (8) reaches projection mirror inside and outside sleeve (6) between (9), the relative position between (7) can change.
2, magic lantern according to claim 1 is characterized in that: the lantern slide of rolling (4) around to another spool (10), must pass through magic lantern horse (11) from a spool (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92228180 CN2127185Y (en) | 1992-07-23 | 1992-07-23 | Teaching slide show for children |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92228180 CN2127185Y (en) | 1992-07-23 | 1992-07-23 | Teaching slide show for children |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2127185Y true CN2127185Y (en) | 1993-02-17 |
Family
ID=33771918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92228180 Expired - Fee Related CN2127185Y (en) | 1992-07-23 | 1992-07-23 | Teaching slide show for children |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2127185Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2020140312A1 (en) * | 2019-01-04 | 2020-07-09 | 杭州中天模型有限公司 | Projection device and projection method |
-
1992
- 1992-07-23 CN CN 92228180 patent/CN2127185Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2020140312A1 (en) * | 2019-01-04 | 2020-07-09 | 杭州中天模型有限公司 | Projection device and projection method |
| US11169436B2 (en) | 2019-01-04 | 2021-11-09 | Hangzhou Zt Model Co., Ltd. | Projecting apparatus and projecting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |