CN2451083Y - Reading telescope - Google Patents
Reading telescope Download PDFInfo
- Publication number
- CN2451083Y CN2451083Y CN 00253081 CN00253081U CN2451083Y CN 2451083 Y CN2451083 Y CN 2451083Y CN 00253081 CN00253081 CN 00253081 CN 00253081 U CN00253081 U CN 00253081U CN 2451083 Y CN2451083 Y CN 2451083Y
- Authority
- CN
- China
- Prior art keywords
- lens barrel
- reading
- reading telescope
- telescope according
- lower port
- 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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Abstract
The utility model relates to a reading telescope, which comprises a lens barrel which is provided with two reflection bends; a plane mirror is arranged on each of the two reflection bends which are arranged in the inner part of the lens barrel respectively; the upper port of the lens barrel is a sight hole; the lens barrel is arranged on a supporting base. The distance between the book and the human eye is elongated by the device using the optical principle, so myopia can be prevented effectively when reading and writing and the reading telescope has definitely therapeutic effect to the myopia. The reading telescope has the advantages of simple structure and convenient operation.
Description
This utility model relates to the preventer technical field of eyes, specifically is a kind of device of pre-myopia prevention, is particularly suitable for the student and uses.
Myopia brings inconvenience and misery for many students and myopia patient's life, work.Myopia formation generally be because for a long time, closely read, write due to.At present, prevention and treatment myopia normally adopt medicine or by means of some medical apparatus and instruments, but the implementation result that these measures have is not obvious, and the cycle that has is long, and what have costs an arm and a leg, and does not accomplish to put prevention first.
The purpose of this utility model is to provide a kind of Reading telescope, and it utilizes optical principle, has elongated the distance of being looked thing and human eye, so can effectively prevent myopia.
The purpose of this utility model is achieved in that
A kind of Reading telescope, it has one and has 2 lens barrels 1 that reflection is curved, and lens barrel 1 inner 2 reflection crooks respectively are provided with a plane mirror 3,4, and lens barrel 1 upper port is a peep-hole 5, and lens barrel 1 is installed on the bearing 6.
Light path length overall in the lens barrel 1 is greater than 500mm.
Lens barrel 1 lower port outer is provided with an illuminating lamp 7 and lampshade 8 thereof.
Lens barrel 1 inwall is provided with not reflectorized material.
Lens barrel 1 upper port 5 is provided with a dust cap 9.
The shape of cross section of lens barrel 1 is circular, square, ellipse or rectangle.
Lower port to upper port 5 continuous cross-sectional areas reduce gradually.
Lens barrel 1 is provided with the optical path length adjustable structure.
Lower port at lens barrel 1 is provided with magnifier 2.
Be provided with the object distance adjustable structure near the lower port of lens barrel 1.
This device utilizes optical principle, elongated the distance of being looked thing and human eye, so can effectively prevent myopia, it is simple in structure, and is easy to use, as add magnifier, the scalable thing of being looked is observed clearlyer, and this device has certain myopia and restitution, be a kind of ideal reading assistant, be particularly suitable for the student and use.
Describe in detail below in conjunction with drawings and Examples.
Fig. 1 is this utility model structural representation.
By shown in Figure 1, have lower port that have the curved lens barrel 1 of 2 reflections and be provided with a convex lens 2, lens barrel 1 inner 2 reflection crooks respectively are provided with a plane mirror 3,4, and lens barrel 1 upper port is a peep-hole 5, and lens barrel 1 is installed on the bearing 6.Light path length overall in the lens barrel 1 is generally 500-1500mm and is advisable.Bearing 6 be shaped as the lower knuckle shape, top links to each other with barrel, and lens barrel 1 is installed firmly steadily, accounts for desktop less, place, lens barrel 1 lower port outer is provided with an illuminating lamp 7 and lampshade 8 thereof, when light is dark, can open illuminating lamp, improves light luminance.Lens barrel 1 inwall scribbles not reflectorized material of blacking or other.Fall in the lens barrel 1 for fear of extraneous dust and foreign material, lens barrel 1 upper port peep-hole 5 places are provided with a dust cap 9, the shape of cross section of lens barrel 1 is oval, and lower port to the continuous cross-sectional area of upper port peep-hole reduces gradually, to meet optical principle, make compact conformation, material-saving, the upper and lower port visual field is as far as possible big for well.Object distance adjustable structure or optical path length adjustable structure can be: the split sleeve adds the locking screw-type, or a certain section of lens barrel adds the formula structure etc. that is locked for soft flexible darkroom formula.If do not add convex lens, the observer can see directly that the quilt of actual size looks thing, observes more natural.At this moment, lens barrel lower port and desktop spacing can be very big.
Claims (10)
1, a kind of Reading telescope, it is characterized in that having one and have 2 lens barrels (1) that reflection is curved, inner 2 the reflection crooks of lens barrel (1) respectively are provided with a plane mirror (3), (4), and lens barrel (1) upper port is peep-hole (5), and lens barrel (1) is installed on the bearing (6).
2, Reading telescope according to claim 1 is characterized in that the interior light path length overall of lens barrel (1) is greater than 500mm.
3, Reading telescope according to claim 1 is characterized in that lens barrel (1) lower port outer is provided with an illuminating lamp (7) and lampshade (8) thereof.
4, Reading telescope according to claim 1 is characterized in that lens barrel (1) inwall is provided with not reflectorized material.
5, Reading telescope according to claim 1 is characterized in that lens barrel (1) upper port (5) is provided with a dust cap (9).
6, Reading telescope according to claim 1, the shape of cross section that it is characterized in that lens barrel (1) is circular, square, ellipse or rectangle.
7, Reading telescope according to claim 1 is characterized in that lower port to the continuous cross-sectional area of upper port (5) reduces gradually.
8, Reading telescope according to claim 1 is characterized in that lens barrel (1) is provided with the optical path length adjustable structure.
9,, it is characterized in that being provided with magnifier (2) in the lower port of lens barrel (1) according to claim 1,2,3,4,5,6,7 or 8 described Reading telescopes.
10, Reading telescope according to claim 9 is characterized in that being provided with the object distance adjustable structure near the lower port of lens barrel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00253081 CN2451083Y (en) | 2000-11-23 | 2000-11-23 | Reading telescope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00253081 CN2451083Y (en) | 2000-11-23 | 2000-11-23 | Reading telescope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2451083Y true CN2451083Y (en) | 2001-10-03 |
Family
ID=33610603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00253081 Expired - Fee Related CN2451083Y (en) | 2000-11-23 | 2000-11-23 | Reading telescope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2451083Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007076680A1 (en) * | 2005-12-31 | 2007-07-12 | Minghua Dai | Myopia prevention and cure instrument for reading and writing |
| CN102789053A (en) * | 2012-09-04 | 2012-11-21 | 王凯 | Remote reading device for alleviating visual fatigue |
| US9442308B2 (en) | 2012-06-15 | 2016-09-13 | Minghua Dai | Multi-element lens of controlling defocus and eye diopter and application thereof |
| CN107773397A (en) * | 2017-11-10 | 2018-03-09 | 李峥炜 | Office's eye health adjuster |
-
2000
- 2000-11-23 CN CN 00253081 patent/CN2451083Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007076680A1 (en) * | 2005-12-31 | 2007-07-12 | Minghua Dai | Myopia prevention and cure instrument for reading and writing |
| CN100477975C (en) * | 2005-12-31 | 2009-04-15 | 戴明华 | Anti-myopia apparatus for reading and writing |
| EA013804B1 (en) * | 2005-12-31 | 2010-08-30 | Мингхуа Дай | Myopia prevention instrument |
| US9442308B2 (en) | 2012-06-15 | 2016-09-13 | Minghua Dai | Multi-element lens of controlling defocus and eye diopter and application thereof |
| CN102789053A (en) * | 2012-09-04 | 2012-11-21 | 王凯 | Remote reading device for alleviating visual fatigue |
| CN102789053B (en) * | 2012-09-04 | 2015-04-22 | 王凯 | Remote reading device for alleviating visual fatigue |
| CN107773397A (en) * | 2017-11-10 | 2018-03-09 | 李峥炜 | Office's eye health adjuster |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: DAI MINGHUA Free format text: FORMER NAME OR ADDRESS: DAI YAODONG |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Dai Minghua Patentee before: Dai Yaodong |
|
| 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 |