CN207366818U - A kind of not coaxial image optical system - Google Patents
A kind of not coaxial image optical system Download PDFInfo
- Publication number
- CN207366818U CN207366818U CN201721466919.5U CN201721466919U CN207366818U CN 207366818 U CN207366818 U CN 207366818U CN 201721466919 U CN201721466919 U CN 201721466919U CN 207366818 U CN207366818 U CN 207366818U
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- optical system
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- prism
- power optical
- camera lens
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Abstract
A kind of not coaxial image optical system is the utility model is related to, it includes prism, variable-power optical system and camera lens, and prism is arranged in front of variable-power optical system, and variable-power optical system is arranged in front of camera lens；Relative position between variable-power optical system and prism can change as needed；With camera lens using being coaxially disposed, the relative position between variable-power optical system and camera lens immobilizes variable-power optical system.The utility model can increase by a not coaxial shooting visual field by increasing variable-power optical system and prism on the premise of original system structure is not changed；The utility model can solve former camera lens image blur under some particular demands, visual angle deficiency, it is impossible to the problem of shooting clear, comprehensive picture well.
Description
Technical field
The utility model belongs to optical imaging apparatus technical field, and in particular to a kind of not coaxial image optical system.
Background technology
With the development of society, many electronic products all have take pictures, camera function.People's meeting when using electronic product
There is the requirement of more visual fields, particularly when the direction of two visual fields is not parallel, for example, when receiving long-distance education, it is desirable to
It can be seen that the desktop operation of lecturer while lecturer's expression expression is seen.In this way, the camera lens of original video camera is ensureing clearly
It is difficult to meet the requirements on the premise of clear degree.
Utility model content
In order to solve the above problem existing in the prior art, the utility model provides a kind of not coaxial imagery optical system
System.
In order to achieve the above object, technical solution is used by the utility model：A kind of not coaxial image optical system bag
Prism, variable-power optical system and camera lens are included, the prism is arranged in front of the variable-power optical system, the variable-power optical system
It is arranged in front of the camera lens；Relative position between the variable-power optical system and prism can change as needed；It is described
With camera lens using being coaxially disposed, the relative position between the variable-power optical system and camera lens immobilizes variable-power optical system.
Further, by moving up and down the prism, the relative position of the prism and variable-power optical system, energy are changed
Enough change the size of two visual fields in image planes.
Further, by the way that clockwise or counterclockwise, incline of the prism at the top of it is changed the prism
With the relative position of variable-power optical system, the angles of two visual fields in image planes can be changed.
Further, the angular range of two visual fields is 45 °~135 ° in the image planes.
Further, the prism uses prism of the cross section for isosceles right triangle.
Further, the bore of the variable-power optical system is D, and the right angle length of side R of the prism meets：0.5D<R<2D,
The thickness L of the prism 1 meets：D<L<3D.
Further, the variable-power optical system uses 1~7 optical mirror slip.
Further, the variable-power optical system one side and close variable-power optical system side in the prism
The distance between one side be arranged to 0.5~1.5mm.
Further, the camera lens one side and the one side in the variable-power optical system close to the camera lens side
The distance between be arranged to 2~10mm.
Further, the zoom scope of the variable-power optical system is 0.5 times~3 times.
Due to being using above technical scheme, the beneficial effects of the utility model：The utility model is by increasing zoom light
System and prism, can increase by a not coaxial shooting visual field on the premise of original system structure is not changed；This practicality is new
Type can solve former camera lens image blur under some particular demands, visual angle deficiency, it is impossible to shoot clear, Quan Mianhua well
The problem of face.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is a kind of structure diagram for not coaxial image optical system that one embodiment of the utility model provides.
In figure：1- prisms；2- variable-power optical systems；3- camera lenses.
Embodiment
To make the purpose of this utility model, technical solution and advantage clearer, below by the technology of the utility model
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not before creative work is made
Obtained all other embodiment is put, belongs to the scope that the utility model is protected.
As shown in Figure 1, the utility model provides a kind of not coaxial image optical system, it includes prism 1, zoom optics
System 2 and camera lens 3.Prism 1 is arranged on the front of variable-power optical system 2, and variable-power optical system 2 is arranged on the front of camera lens 3.Zoom light
Relative position between system 2 and prism 1 can change as needed.Variable-power optical system 2 is set with camera lens 3 using coaxial
Put.Relative position between variable-power optical system 2 and camera lens 3 immobilizes.By moving up and down prism 1, change prism 1 with
The relative position of variable-power optical system 2, can change the size of the first visual field and the second visual field in image planes.By by prism 1 around
Incline at the top of it clockwise or counterclockwise, changes the relative position of prism 1 and variable-power optical system 2, can change picture
Angle on face between the first visual field and the second visual field, the angular range in image planes between the first visual field and the second visual field are 45 °
~135 °.
Before variable-power optical system 2 is arranged on camera lens 3, focal length, multiplying power and the visual field of camera lens 3 can be changed.
Before prism 1 is arranged on variable-power optical system 2, by increasing capacitance it is possible to increase a visual field, by varying prism 1 and zoom optical system
Relative position between system 2, can change direction and the size of shooting visual field.
In above-described embodiment, prism 1 uses prism of the cross section for isosceles right triangle.Specifically, set prism 1
The a length of R of right-angle side, the thickness of prism 1 is L, and the bore of variable-power optical system 2 is D, then the right angle length of side R of prism meets：0.5D<
R<2D, the thickness L of prism meet：D<L<3D.
In above-described embodiment, variable-power optical system 2 uses 1~7 optical mirror slip.Wherein, the zoom of variable-power optical system 2
Scope is 0.5 times~3 times.
In above-described embodiment, 2 one side of variable-power optical system and one of close 2 side of variable-power optical system in prism 1
The distance between side is arranged to 0.5~1.5mm.3 one side of camera lens is with leaning on 3 side of portrait attachment in variable-power optical system 2
The distance between one side is arranged to 2~10mm.
The not coaxial image optical system of the utility model can not change original by increasing variable-power optical system and prism
Increase by a not coaxial shooting visual field on the premise of having system structure；The utility model can solve former camera lens well some
Image blur under particular demands, visual angle deficiency, it is impossible to the problem of shooting clear, comprehensive picture.The utility model can be extensive
For taking a picture, monitoring, in the auxiliary lens for the equipment such as photograph.
The above, is only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with the power
Subject to the protection domain that profit requires.
Claims (10)
1. a kind of not coaxial image optical system, it is characterised in that it includes prism, variable-power optical system and camera lens, the rib
Mirror is arranged in front of the variable-power optical system, and the variable-power optical system is arranged in front of the camera lens；The zoom optics
Relative position between system and prism can change as needed；The variable-power optical system is used with camera lens and is coaxially disposed,
Relative position between the variable-power optical system and camera lens immobilizes.
2. a kind of not coaxial image optical system as claimed in claim 1, it is characterised in that by moving up and down the rib
Mirror, changes the relative position of the prism and variable-power optical system, can change the size of two visual fields in image planes.
A kind of 3. not coaxial image optical system as claimed in claim 1, it is characterised in that by by the prism around Qi Ding
The incline in portion clockwise or counterclockwise, changes the relative position of the prism and variable-power optical system, can change image planes
The angle of upper two visual field.
A kind of 4. not coaxial image optical system as claimed in claim 3, it is characterised in that the folder of two visual fields in the image planes
Angular region is 45 °~135 °.
5. a kind of not coaxial image optical system as claimed in claim 1 or 2 or 3 or 4, it is characterised in that the prism is adopted
With the prism that cross section is isosceles right triangle.
A kind of 6. not coaxial image optical system as claimed in claim 5, it is characterised in that the mouth of the variable-power optical system
Footpath is D, and the right angle length of side R of the prism meets：0.5D<R<2D, the thickness L of the prism 1 meet：D<L<3D.
A kind of 7. not coaxial image optical system as claimed in claim 1 or 2 or 3 or 4, it is characterised in that the change
Magnification optical system uses 1~7 optical mirror slip.
A kind of 8. not coaxial image optical system as claimed in claim 1 or 2 or 3 or 4, it is characterised in that the zoom light
System one side close to the distance between one side of the variable-power optical system side in the prism with being arranged to 0.5
~1.5mm.
A kind of 9. not coaxial image optical system as claimed in claim 1 or 2 or 3 or 4, it is characterised in that the camera lens one
Side close to the distance between one side of the camera lens side in the variable-power optical system with being arranged to 2~10mm.
A kind of 10. not coaxial image optical system as claimed in claim 1 or 2 or 3 or 4, it is characterised in that the zoom light
The zoom scope of system is 0.5 times~3 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721466919.5U CN207366818U (en) | 2017-11-06 | 2017-11-06 | A kind of not coaxial image optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721466919.5U CN207366818U (en) | 2017-11-06 | 2017-11-06 | A kind of not coaxial image optical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207366818U true CN207366818U (en) | 2018-05-15 |
Family
ID=62346171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721466919.5U Active CN207366818U (en) | 2017-11-06 | 2017-11-06 | A kind of not coaxial image optical system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207366818U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107678145A (en) * | 2017-11-06 | 2018-02-09 | 深圳市瀚邦为电子材料有限公司 | A kind of not coaxial image optical system |
| CN110209002A (en) * | 2019-06-12 | 2019-09-06 | 北京未来橙网络科技有限公司 | Optical facilities system |
-
2017
- 2017-11-06 CN CN201721466919.5U patent/CN207366818U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107678145A (en) * | 2017-11-06 | 2018-02-09 | 深圳市瀚邦为电子材料有限公司 | A kind of not coaxial image optical system |
| CN110209002A (en) * | 2019-06-12 | 2019-09-06 | 北京未来橙网络科技有限公司 | Optical facilities system |
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