CN201122206Y - Projection device of learning computer for children - Google Patents
Projection device of learning computer for children Download PDFInfo
- Publication number
- CN201122206Y CN201122206Y CNU2007200090732U CN200720009073U CN201122206Y CN 201122206 Y CN201122206 Y CN 201122206Y CN U2007200090732 U CNU2007200090732 U CN U2007200090732U CN 200720009073 U CN200720009073 U CN 200720009073U CN 201122206 Y CN201122206 Y CN 201122206Y
- Authority
- CN
- China
- Prior art keywords
- projection device
- film
- magnifier
- projection arrangement
- light source
- 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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- Projection Apparatus (AREA)
Abstract
The utility model discloses a projection device of a children learning machine, wherein, a light source, an optical collector, a film and a first magnifier are arranged in a shell of the projection device from top to bottom in sequence. The optical collector can achieve the aim of converging transmitted light, thereby enabling the projected images clearer. In addition, the projection device can arrange two parallel magnifiers behind the film, the two magnifiers can revolvably adjust through a thread structure, thereby achieving the aim of adjusting the focus and achieving the aim of clear images through adjusting the focus when the position of the projection device and the table top is changed.
Description
Technical field
The utility model relates to a kind of projection arrangement, refers to a kind of projection arrangement of children learning machine especially.
Background technology
At present, the learning machine that uses to children has a variety of, a kind of learning machine of projection that is is wherein arranged, its structural principle is: fixedly mount or place a projection arrangement on a stand, film be can plug on this projection arrangement, various literal or pattern (comprising line image or multicolour pattern or the like) then are printed on the film.In use, open projection arrangement, light sees through film, and literal on the film or pattern will shine upon on the table, only needs to take pen to retouch according to the image that mirrors this moment and draws, and can reach the purpose that exercise is write or drawn a picture.
The projection arrangement of existing children learning machine, its inner structure is disposed with light source, film and magnifier from top to bottom, and light source is generally led light source.Though the structure of this projection arrangement is simple, but has following deficiency:
1. even light source adopts led light source, also inevitably can have diversity, thereby cause projecting not fogging clear.
2. magnifier has only one and for maintaining static, and the distance between projection arrangement and the desktop can not change in assurance, and so normal appearance is owing to the burnt inaccurate not fogging clear phenomenon that makes of collection.
The utility model content
At above-mentioned deficiency, the purpose of this utility model is to provide a kind of image that projects projection arrangement of children learning machine more clearly that makes.
For achieving the above object, technical solution of the present utility model is:
A kind of projection arrangement of children learning machine is disposed with light source, condenser, film and one-level magnifier from top to bottom in the housing of this projection arrangement.
The below of described film is provided with a secondary magnifier parallel with described one-level magnifier again, and this two-stage magnifier is by helicitic texture rotation focusing.
After adopting such scheme,, can reach the purpose that the light that makes emission converges by condenser, thereby make the image that mirrors more clear because the utility model is provided with a condenser at the rear of light source.
In addition, the utility model is provided with two parallel magnifieres again at the rear of film, this two-stage magnifier can be regulated by the helicitic texture rotation, thereby reaches the purpose of focusing, when there is change the position between projection arrangement and the desktop, can reach the purpose that makes clear picture like this by focusing.
Description of drawings
Fig. 1 is the structure cut-open view of projection arrangement described in the utility model;
Fig. 2 is a schematic diagram of the present utility model.
Embodiment
Consult shown in Figure 1ly, what the utility model was related is the projection arrangement that a kind of children learning machine is used, and is disposed with light source 1, condenser 2, film 3, one-level magnifier 4 and secondary magnifier 5 in the housing A of this projection arrangement from top to bottom.Wherein: described light source 1 can be led light source, the then rotatable and replacement of described film 3.
As shown in Figure 2, principle of work of the present utility model is: when opening projection arrangement, after making light source 1 light, thereby light will converge light through condenser 2, light after converging shines the position that is printed on pattern on the film 3 again, afterwards, by projecting on the desktop 6 after 4,5 amplifications of two-stage magnifier, the juvenile can practise according to the image that mirrors like this.
The utility model can reach the purpose that the light that makes emission converges by condenser 2, thereby makes the image that mirrors more clear.In addition, the utility model is by being provided with two parallel magnifieres, and this two-stage magnifier can be regulated by the helicitic texture rotation, thereby reaches the purpose of focusing, when there is change the position, can reach the purpose that makes clear picture by focusing like this.
Claims (2)
1, a kind of projection arrangement of children learning machine is disposed with light source, film and one-level magnifier from top to bottom in the housing of this projection arrangement, it is characterized in that: also be provided with condenser between described light source and film.
2, the projection arrangement of children learning machine according to claim 1, it is characterized in that: the below of described film is provided with a secondary magnifier parallel with described one-level magnifier again, and this two-stage magnifier is by helicitic texture rotation focusing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200090732U CN201122206Y (en) | 2007-12-07 | 2007-12-07 | Projection device of learning computer for children |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200090732U CN201122206Y (en) | 2007-12-07 | 2007-12-07 | Projection device of learning computer for children |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201122206Y true CN201122206Y (en) | 2008-09-24 |
Family
ID=40009439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200090732U Expired - Fee Related CN201122206Y (en) | 2007-12-07 | 2007-12-07 | Projection device of learning computer for children |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201122206Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103578303A (en) * | 2013-10-10 | 2014-02-12 | 东莞市中科教育电子有限公司 | Child learning machine system |
| CN107305751A (en) * | 2016-04-18 | 2017-10-31 | 丽水学院 | Visual field dispenser is read using LED as the projection-type of light source |
-
2007
- 2007-12-07 CN CNU2007200090732U patent/CN201122206Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103578303A (en) * | 2013-10-10 | 2014-02-12 | 东莞市中科教育电子有限公司 | Child learning machine system |
| CN107305751A (en) * | 2016-04-18 | 2017-10-31 | 丽水学院 | Visual field dispenser is read using LED as the projection-type of light source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080924 Termination date: 20100107 |