CN204627374U - A kind of rotatable opal - Google Patents
A kind of rotatable opal Download PDFInfo
- Publication number
- CN204627374U CN204627374U CN201520315635.0U CN201520315635U CN204627374U CN 204627374 U CN204627374 U CN 204627374U CN 201520315635 U CN201520315635 U CN 201520315635U CN 204627374 U CN204627374 U CN 204627374U
- Authority
- CN
- China
- Prior art keywords
- lens barrel
- opal
- straight lens
- rotatable
- visor cylinder
- 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.)
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Abstract
The utility model discloses a kind of rotatable opal, comprise straight lens barrel and visor cylinder, described straight lens barrel one end is fixedly connected with described visor cylinder, described straight lens barrel and described visor cylinder are angle 100 ° ~ 170 °, convex lens are provided with in described straight lens barrel, described straight lens barrel and described visor cylinder angle are provided with level crossing, and described visor cylinder front end is provided with concavees lens.When there being people to knock at the door, and when the scene outside room cannot enter opal, people within doors can rotate straight lens barrel, and correspondingly visor cylinder also rotates thereupon, can realize the scene outside 180 ° of omnibearing visual angles observation rooms.
Description
Technical field
The utility model relates to household technical field of burglary prevention, particularly relates to a kind of rotatable opal.
Background technology
Opal, also known as peephole, is a kind of compact optical instrument be contained on the door of house family, is convenient to resident and observes outdoor situation, become the necessity of home safety.It is made up of one piece of concave lens and one piece of convex lens.The focal length of object lens is extremely short, and it makes outdoor people or thing become the upright virtual image reduced, and within this picture just in time drops on the focus of eyepiece, finally obtain a upright virtual image of amplifying, this picture just becomes again near the distance of distinct vision of human eye, has just seen clearly situation outdoors.If from but seeing indoor anything by peephole outdoors. on the gate of public housing or private residence etc., load onto this mirror, for the antitheft of family and safety, can certain effect be played.
Existing opal is outwards seen by peephole indoor, can see the angle of visual field outdoors clearly and be about all scenes within the scope of 120 °, but when scene is not outdoors in these 120 °, just cannot see through opal, existing opal still exists the problem that there is dead angle visual field.
Therefore, need badly and provide a kind of rotatable opal, to solve the problem.
Utility model content
In view of this, the utility model provides a kind of rotatable opal, solves the problem cannot being seen all scenes outdoors in prior art by the full visual angle of opal.
The technological means that the utility model adopts is as follows: a kind of rotatable opal, comprise straight lens barrel and visor cylinder, described straight lens barrel one end is fixedly connected with described visor cylinder, described straight lens barrel and described visor cylinder are angle 100 ° ~ 170 °, convex lens are provided with in described straight lens barrel, described straight lens barrel and described visor cylinder angle are provided with level crossing, and described visor cylinder front end is provided with concavees lens.
Preferably, also comprise handle, described handle is fixedly connected with the described straight lens barrel other end.
Preferably, also comprise outer cover, described outer cover is around described straight lens barrel.
Preferably, also comprise protective cover, described protective cover is pellicle, and described protective cover semicircular in shape is fixedly connected on described outer cover.
Preferably, described angle is 130 ° ~ 140 °.
Adopt the rotatable opal of one provided by the utility model, when there being people to knock at the door, and when the scene outside room cannot enter opal, people within doors can rotate straight lens barrel, correspondingly visor cylinder also rotates thereupon, can realize the scene outside 180 ° of omnibearing visual angles observation rooms.
Accompanying drawing explanation
The structural representation of a kind of rotatable opal that Fig. 1 provides for the utility model.
Detailed description of the invention
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
Embodiment 1
As shown in Figure 1, a kind of rotatable opal 1, comprise straight lens barrel 2 and visor cylinder 3, described straight lens barrel 2 one end is fixedly connected with described visor cylinder 3, described straight lens barrel 2 and described visor 3 are in angle 140 °, be provided with convex lens 4 in described straight lens barrel 2, described straight lens barrel 2 is provided with level crossing 5 with described visor cylinder 3 angle, and described visor cylinder 3 front end is provided with concavees lens 6.Outer scene, by described concavees lens 6, by producing the handstand virtual image after described level crossing 5, produces finally by described convex lens 4 eyes that people is imported in the upright virtual image into.When there being people to knock at the door, and when the scene outside room cannot enter opal, people within doors can rotate straight lens barrel 2, and correspondingly visor cylinder 3 also rotates thereupon, can realize the scene outside 180 ° of omnibearing visual angles observation rooms.
Embodiment 2
As shown in Figure 1, a kind of rotatable opal 1, comprise straight lens barrel 2 and visor cylinder 3, described straight lens barrel 2 one end is fixedly connected with described visor cylinder 3, and described straight lens barrel 2 in angle 130 °, is provided with convex lens 4 in described straight lens barrel 2 with described visor 3, described straight lens barrel 2 is provided with level crossing 5 with described visor cylinder 3 angle, described visor cylinder 3 front end is provided with concavees lens 6, and a kind of rotatable opal 1 also comprises handle 7, and described handle 7 is fixedly connected with described straight lens barrel 2 other end.Outer scene, by described concavees lens 6, by producing the handstand virtual image after described level crossing 5, produces finally by described convex lens 4 glasses that people is imported in the upright virtual image into.When there being people to knock at the door, and when the scene outside room cannot enter opal, people within doors can rotate straight lens barrel 2, and correspondingly visor cylinder 3 also rotates thereupon, can realize the scene outside 180 ° of omnibearing visual angles observation rooms, arrange handle 7 and be convenient to rotate straight lens barrel 2.
Here it is to be noted, in embodiment 1 and embodiment 2, angle 130 °, 140 ° of preferred versions being only embodiment, angle can be arranged on 100 ° ~ 170 ° according to actual conditions by those skilled in the art, all belongs to inventive concept scope of the present utility model.
Embodiment 3
As shown in Figure 1, in embodiment 1, a kind of rotatable opal 1 also comprises outer cover 8, and described outer cover 8 is around described straight lens barrel 2.Straight lens barrel 2 can in outer cover 8 smooth rotation, solve straight lens barrel 2 better and directly contact the problem producing and wear and tear with door.
Embodiment 4
As shown in Figure 1, in embodiment 3, a kind of rotatable opal 1 also comprises protective cover 9, and described protective cover 9 is pellicle, and described protective cover 9 semicircular in shape is fixedly connected on described outer cover 8, and protective cover 9 plays the effect of protection visor cylinder 3, prevents visor cylinder destroyed.
In sum, the rotatable opal 1 of one provided by the utility model is adopted, when there being people to knock at the door, and the scene outside room is when cannot enter opal, people within doors can rotate straight lens barrel 2, and correspondingly visor cylinder 3 also rotates thereupon, can realize the scene outside 180 ° of omnibearing visual angles observation rooms.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacements, improvement etc., all should be included within scope that the utility model protects.
Claims (5)
1. a rotatable opal, it is characterized in that, comprise straight lens barrel and visor cylinder, described straight lens barrel one end is fixedly connected with described visor cylinder, described straight lens barrel and described visor cylinder are angle 100 ° ~ 170 °, be provided with convex lens in described straight lens barrel, described straight lens barrel and described visor cylinder angle are provided with level crossing, and described visor cylinder front end is provided with concavees lens.
2. a kind of rotatable opal as claimed in claim 1, it is characterized in that, also comprise handle, described handle is fixedly connected with the described straight lens barrel other end.
3. a kind of rotatable opal as claimed in claim 1, it is characterized in that, also comprise outer cover, described outer cover is around described straight lens barrel.
4. a kind of rotatable opal as claimed in claim 3, it is characterized in that, also comprise protective cover, described protective cover is pellicle, and described protective cover semicircular in shape is fixedly connected on described outer cover.
5. the rotatable opal of the one as described in any one of Claims 1 to 4, is characterized in that, described angle is 130 ° ~ 140 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520315635.0U CN204627374U (en) | 2015-05-15 | 2015-05-15 | A kind of rotatable opal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520315635.0U CN204627374U (en) | 2015-05-15 | 2015-05-15 | A kind of rotatable opal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204627374U true CN204627374U (en) | 2015-09-09 |
Family
ID=54046414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520315635.0U Expired - Fee Related CN204627374U (en) | 2015-05-15 | 2015-05-15 | A kind of rotatable opal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204627374U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503656A (en) * | 2017-09-01 | 2017-12-22 | 张宇锋 | A kind of door viewer of movable direction |
| CN115171306A (en) * | 2022-06-27 | 2022-10-11 | 蒋宏伟 | Building fire safety early warning device and method |
-
2015
- 2015-05-15 CN CN201520315635.0U patent/CN204627374U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503656A (en) * | 2017-09-01 | 2017-12-22 | 张宇锋 | A kind of door viewer of movable direction |
| CN115171306A (en) * | 2022-06-27 | 2022-10-11 | 蒋宏伟 | Building fire safety early warning device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20180515 |