CN209486370U - A kind of camera lens - Google Patents
A kind of camera lens Download PDFInfo
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- CN209486370U CN209486370U CN201920416900.2U CN201920416900U CN209486370U CN 209486370 U CN209486370 U CN 209486370U CN 201920416900 U CN201920416900 U CN 201920416900U CN 209486370 U CN209486370 U CN 209486370U
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- aperture
- eyeglass
- lens
- camera lens
- light
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Abstract
This application discloses a kind of camera lenses, including at least one lens and aperture eyeglass, and lens and aperture eyeglass are arranged successively, and aperture eyeglass is arranged in the front side or rear side of any lens, so that incident light can pass sequentially through lens and aperture eyeglass by putting in order；Aperture eyeglass has and by the first aperture area of infrared light and visible light and can end visible light and by the second aperture area of infrared light.The light of daylight environment is mainly visible light, and after light incidence camera lens, the part for being incident on the second aperture area can be ended, and be equivalent to the aperture for reducing camera lens, made to be imaged apparent；When night environment uses camera lens, light filling is carried out using infrared light, after infrared light incidence camera lens, the first aperture area and the second aperture area can be passed through, it is equivalent to and increases the aperture of camera lens, the brightness to guarantee imaging is enough, avoids the occurrence of the problem of image shades.
Description
Technical field
This application involves lens technology field, in particular to a kind of camera lens.
Background technique
In the equipment of the protection and monitor fields such as monitor camera, telescope and optical sight, camera lens is all must can not
Few component.
The equipment of protection and monitor field usually requires well run in day and night environment, on daytime in use,
It is required that the aperture of camera lens is smaller, is conducive to increase the depth of field, keeps image apparent, at night in use, generally use infrared light into
The luminous intensity of row light filling, infrared light is weaker, it is desirable that the aperture of camera lens is larger, avoids luminance shortage that image is caused to shade.It is existing
Camera lens adjusts aperture usually using fixed aperture or using mechanical driving structure, not can guarantee using the camera lens of fixed aperture white
It and night all show excellent performance, and some camera lenses have two apertures of size, drive size by mechanical driving structure
The switching of two apertures switches adaptable small aperture or large aperture on daytime and night and uses, but mechanical driving structure
Structure is complicated, higher cost, while the volume of mechanical driving structure is larger, increases the volume of equipment, is unfavorable for the small of equipment
Type.
Utility model content
The application provides a kind of camera lens, needs to switch aperture by mechanical driving structure and could fit to solve existing camera lens
The problem of for daytime and night working environment.
A kind of camera lens provided herein, including at least one lens and aperture eyeglass, the lens and aperture eyeglass
It is arranged successively, and the aperture eyeglass is arranged in the front side or rear side of any lens, so that incident light can be suitable by arranging
Sequence passes sequentially through lens and aperture eyeglass；The aperture eyeglass have can by the first aperture area of infrared light and visible light and
Visible light can be ended and pass through the second aperture area of infrared light.
As the further improvement of the camera lens, the aperture eyeglass is provided with the first loophole of perforation, and described first thoroughly
The aperture area of unthreaded hole is the first aperture area, and the aperture eyeglass at least partly region use can end visible light and by red
The material of outer light is made, using as second aperture area.
As the further improvement of the camera lens, the aperture eyeglass use can end visible light and by infrared light
Material is integrally formed.
As the further improvement of the camera lens, the aperture eyeglass integrally uses visible light cut-off type filter glass system
At.
As the further improvement of the camera lens, the aperture eyeglass is annular, and the first loophole is provided with aperture mirror
The middle part of piece.
Further include outer cover as the further improvement of the camera lens, the outer cover it is movable or it is detachable be arranged saturating
The front side of mirror and aperture eyeglass, for preventing light from passing through, the middle part of the outer cover has the second loophole of perforation, and described the
Aperture of the aperture of two loopholes less than the first loophole.
As the further improvement of the camera lens, the mirror surface of the aperture eyeglass is plane.
As the further improvement of the camera lens, the mirror surface of the aperture eyeglass is spherical surface.
As the further improvement of the camera lens, including at least three lens, three lens are by putting in order successively
For entrance pupil optical mirror slip, the double cemented doublets of anaberration and emergent pupil optical mirror slip.
As the further improvement of the camera lens, including at least five lens, five lens are by putting in order successively
For entrance pupil optical mirror slip, the first anaberration eyeglass, the double cemented doublets of anaberration, the second anaberration eyeglass and emergent pupil optical mirror slip.
The application's the utility model has the advantages that
A kind of camera lens provided herein, including at least one lens and aperture eyeglass, the lens and aperture eyeglass
It is arranged successively, and the aperture eyeglass is arranged in the front side or rear side of any lens, so that incident light can be suitable by arranging
Sequence passes sequentially through lens and aperture eyeglass；The aperture eyeglass have can by the first aperture area of infrared light and visible light and
Visible light can be ended and pass through the second aperture area of infrared light.When daylight environment uses camera lens, light is mainly visible light,
After light incidence camera lens, the part for being incident on the second aperture area can be ended, and the aperture for reducing camera lens is equivalent to, to increase
The depth of field of camera lens, makes to be imaged apparent；When night environment uses camera lens, light filling is carried out using infrared light, infrared light enters
After penetrating camera lens, the first aperture area and the second aperture area can be passed through, is equivalent to and increases the aperture of camera lens, to guarantee to be imaged
Brightness it is enough, avoid the occurrence of image obfuscation the problem of.
Detailed description of the invention
Fig. 1 is the right view of camera lens in a kind of embodiment of the application；
Fig. 2 is the cross-sectional view of illustrations 1 along longitudinal direction；
Fig. 3 is the perspective view of camera lens in a kind of embodiment of the application；
Fig. 4 is the perspective view of camera lens in the application another kind embodiment；
Fig. 5 is the perspective view of camera lens in the third embodiment of the application；
Fig. 6 is the perspective view of camera lens in the 4th kind of embodiment of the application.
Appended drawing reference: 100, outer cover；110, the second loophole；200, entrance pupil optical mirror slip；300, the first anaberration eyeglass；
400, the double cemented doublets of anaberration；500, aperture eyeglass；510, the first loophole；600, the second anaberration eyeglass；700, emergent pupil
Optical mirror slip.
Specific embodiment
Wherein different embodiments are described in further detail to the application below by specific embodiment combination attached drawing
Middle similar component uses associated similar element numbers.In the following embodiments, many datail descriptions be in order to
The application is better understood.However, those skilled in the art can recognize without lifting an eyebrow, part of feature
It is dispensed, or can be substituted by other elements, material, method in varied situations.In some cases, this Shen
Please it is relevant it is some operation there is no in the description show or describe, this is the core in order to avoid the application by mistake
More descriptions are flooded, and to those skilled in the art, these relevant operations, which are described in detail, not to be necessary, they
Relevant operation can be completely understood according to the general technology knowledge of description and this field in specification.
It is formed respectively in addition, feature described in this description, operation or feature can combine in any suitable way
Kind embodiment.Meanwhile each step in method description or movement can also can be aobvious and easy according to those skilled in the art institute
The mode carry out sequence exchange or adjustment seen.Therefore, the various sequences in the description and the appended drawings are intended merely to clearly describe a certain
A embodiment is not meant to be necessary sequence, and wherein some sequentially must comply with unless otherwise indicated.
It is herein component institute serialization number itself, such as " first ", " second " etc., is only used for distinguishing described object,
Without any sequence or art-recognized meanings.And " connection ", " connection " described in the application, unless otherwise instructed, include directly and
It is indirectly connected with (connection).
Embodiment:
The present embodiment provides a kind of camera lenses.
Referring to FIG. 1, the camera lens includes at least one lens and aperture eyeglass 500, lens and aperture eyeglass 500 are successively arranged
Column, and aperture eyeglass 500 is arranged in the front side or rear side of any lens, so that incident light can successively lead to by putting in order
Cross lens and aperture eyeglass 500；Aperture eyeglass 500 has can be by that the first aperture area of infrared light and visible light and can cut
Only visible light and the second aperture area by infrared light.Specifically, the side that lens are first contacted with incident ray is before lens
Side, the side that lens are pierced by for incident ray are the rear side of lens.
When daylight environment uses camera lens, light is mainly visible light, after light incidence camera lens, is incident on the second aperture area
Part can be ended, be equivalent to the aperture for reducing camera lens, to increase the depth of field of camera lens, make to be imaged apparent；At night
When late environment uses camera lens, light filling is carried out using infrared light, after infrared light incidence camera lens, the first aperture area can be passed through
It with the second aperture area, is equivalent to and increases the aperture of camera lens, the brightness to guarantee imaging is enough, avoids the occurrence of asking for image obfuscation
Topic.
Fig. 1-Fig. 3 is please referred to, in one embodiment, aperture eyeglass 500 is provided with the first loophole 510 of perforation, and first
The aperture area of loophole 510 is the first aperture area, and at least partly region use of aperture eyeglass 500 can end visible light and lead to
The material for crossing infrared light is made, using as the second aperture area.Visible light can be ended and be existing material by the material of infrared light
Material, for example, visible light cut-off type glass etc..In the present embodiment, aperture eyeglass 500 is made by aperture mode, that is, in aperture
Aperture forms aperture eyeglass 500 on the raw material of eyeglass.
In another embodiment, aperture eyeglass includes eyeglass ontology and visible light cut film, and eyeglass ontology can pass through
Visible light and infrared light, it is seen that light cut film can pass through infrared light and end visible light, it is seen that light cut film is sticked in lens
Partial region, the region that being sticked on lens has visible light cut film is the second aperture area, the area for the visible light cut film that is not sticked
Domain is the first aperture area.In the present embodiment, aperture eyeglass is made by plated film mode, that is, plates visible light on eyeglass ontology
Cut film forms aperture eyeglass.
In above two embodiment, aperture mode and plated film mode can make aperture eyeglass, two ways production
Aperture lens structure it is different, but can play and end visible light in the partial region of aperture eyeglass and by the work of infrared light
With.It is simpler than the technique that plated film mode makes aperture eyeglass that aperture eyeglass is made by aperture mode, especially when eyeglass ontology
Mirror surface be curved surface or irregular face when, coating process more than hole opening technology complexity so that aperture mode makes aperture eyeglass
Cost makes the cost of aperture far below plated film mode.The aperture eyeglass made by aperture mode, the first loophole it is saturating
Optical property is more preferable, advantageously ensures that the brightness of imaging.The aperture eyeglass made by plated film mode, durability ratio is opened when in use
The aperture lens difference that hole mode makes, is in particular in, once when the aperture eyeglass made of plated film mode by use, its
The visible light cut film on surface, which wears or falls off, can not just play the role of having, and the aperture eyeglass made of aperture mode,
Since the region surface that it is used to end visible light is identical with internal material, even if surface is worn, it can still play and cut
The only effect of visible light.
Fig. 1-Fig. 3 is please referred to, in one embodiment, aperture eyeglass 500 is using can end visible light and by infrared
The material of light is integrally formed.It in other embodiments, can also be visible using that can end in the partial region of aperture eyeglass 500
Light and material by infrared light use different materials in other regions.
Fig. 1-Fig. 3 is please referred to, in one embodiment, aperture eyeglass 500 is whole to use visible light cut-off type filter glass
It is made.In other embodiments, aperture eyeglass 500 can also be made using other suitable materials on the market, as long as the material
Visible light can be ended and by infrared light.
Fig. 1-Fig. 3 is please referred to, in one embodiment, aperture eyeglass 500 is annular, and the first loophole 510 is provided with
The middle part of aperture eyeglass 500.In other embodiments, rectangular, triangle or any other also can be set in aperture eyeglass 500
Shape, the first loophole 510 can not also be provided with the middle part of aperture eyeglass 500, but be provided with any other position.
Fig. 1-Fig. 3 is please referred to, in one embodiment, camera lens further includes outer cover 100, and outer cover 100 is movable or detachable
The front side of lens and aperture eyeglass 500 is arranged in formula, and for preventing light from passing through, the middle part of outer cover 100 has the second of perforation
Loophole 110, the aperture of the aperture of the second loophole 110 less than the first loophole 510.
When needing to use camera lens in daytime strong light environment, outer cover 100 can be covered, further decrease the light of camera lens
Circle can remove outer cover 100 when needing to use camera lens in general luminous environment on daytime.When not using camera lens, can incite somebody to action
Outer cover 100 covers, and outer cover 100 plays the role of protecting lens and aperture eyeglass 500 at this time.
Specifically, lens and aperture eyeglass 500 may be mounted on corresponding mounting structure, for example, lens and aperture mirror
Piece 500 is mounted on lens barrel.Outer cover 100 can be hinged with lens barrel, and outer cover 100 is rotated around lens barrel to realize outer cover
100 lid is closed and is opened；Outer cover 100 when outer cover 100 covers, can also be engaged by clamping with lens barrel detachable clamping with lens barrel,
When needing to remove outer cover 100, outer cover 100 is removed from lens barrel；Outer cover 100 can also be that slidingtype is assemblied on lens barrel,
Realize that the lid of outer cover 100 is closed and opened by sliding outer cover 100.
Fig. 1-Fig. 3 is please referred to, in one embodiment, the shape of outer cover 100 is annular, and the second loophole 110 is located at outer
The middle part of lid 100.In other embodiments, outer cover 100 also can be set rectangular, triangle or other arbitrary shapes, and second
Loophole 110 can not also be provided with the middle part of outer cover 100, but be provided with any other position.
Fig. 1-Fig. 3 is please referred to, in one embodiment, the mirror surface of aperture eyeglass 500 is plane.
In another embodiment, the mirror surface of aperture eyeglass 500 is spherical surface.So that aperture eyeglass 500 can also play correction
Aberration improves the effect of image quality.In other embodiments, the mirror surface of aperture eyeglass 500 be also possible to other rule or not
The shape of rule.
The quantity of lens can be any positive integer more than or equal to one, can be according to the purposes and actual demand of camera lens
The quantity of flexible setting lens and position.
In one embodiment, camera lens includes at least three lens, and three lens are followed successively by entrance pupil optics by putting in order
The double cemented doublets of eyeglass, anaberration and emergent pupil optical mirror slip.
Fig. 1-Fig. 3 is please referred to, in one embodiment, camera lens includes at least five lens, and five lens are by putting in order
It is followed successively by entrance pupil optical mirror slip 200, the first anaberration eyeglass 300, anaberration double cemented doublets 400, the second anaberration eyeglass 600
With emergent pupil optical mirror slip 700.
The side first contacted with incident ray in the front side or rear side of any lens, lens can be set in aperture eyeglass 500
For the front side of lens, lens are the rear side of lens for the side that incident ray is pierced by.
Fig. 1-Fig. 3 is please referred to, in one embodiment, the setting of aperture eyeglass 500 is in the double cemented doublet 400 of anaberration and the
Between two anaberration eyeglasses 600.
Referring to FIG. 4, in another embodiment, the rear side of emergent pupil optical mirror slip 700 is arranged in aperture eyeglass 500.
In another embodiment, the front side of entrance pupil optical mirror slip 200 is arranged in aperture eyeglass 500.
Referring to FIG. 5, in one embodiment, camera lens includes one piece of lens, before lens are arranged in aperture eyeglass 500
Side.
Referring to FIG. 6, in one embodiment, camera lens includes one piece of lens, after lens are arranged in aperture eyeglass 500
Side.
The foregoing is a further detailed description of the present application in conjunction with specific implementation manners, and it cannot be said that this Shen
Specific implementation please is only limited to these instructions.For those of ordinary skill in the art to which this application belongs, it is not taking off
Under the premise of from the present application design, a number of simple deductions or replacements can also be made.
Claims (10)
1. a kind of camera lens, which is characterized in that including at least one lens and aperture eyeglass, the lens and aperture eyeglass are successively arranged
Column, and the aperture eyeglass is arranged in the front side or rear side of any lens, so that incident light can be by putting in order successively
Pass through lens and aperture eyeglass；
The aperture eyeglass has and by the first aperture area of infrared light and visible light and can end visible light and pass through
Second aperture area of infrared light.
2. camera lens as described in claim 1, which is characterized in that the aperture eyeglass is provided with the first loophole of perforation, described
The aperture area of first loophole be the first aperture area, the aperture eyeglass at least partly region using can end visible light and
It is made up of the material of infrared light, using as second aperture area.
3. camera lens as claimed in claim 2, which is characterized in that the aperture eyeglass use can end visible light and by red
The material of outer light is integrally formed.
4. camera lens as claimed in claim 3, which is characterized in that the aperture eyeglass integrally uses visible light cut-off type optical filtering glass
Glass is made.
5. camera lens as claimed in claim 2, which is characterized in that the aperture eyeglass is annular, and the first loophole is provided with
The middle part of aperture eyeglass.
6. such as the described in any item camera lenses of claim 2-5, which is characterized in that further include outer cover, the outer cover is movable or can
The front side of lens and aperture eyeglass is arranged in detachable, and for preventing light from passing through, the middle part of the outer cover has the of perforation
Two loopholes, the aperture of the aperture of second loophole less than the first loophole.
7. camera lens as described in claim 1, which is characterized in that the mirror surface of the aperture eyeglass is plane.
8. camera lens as described in claim 1, which is characterized in that the mirror surface of the aperture eyeglass is spherical surface.
9. camera lens as described in claim 1, which is characterized in that including at least three lens, three lens are suitable by arranging
Sequence is followed successively by the double cemented doublets of entrance pupil optical mirror slip, anaberration and emergent pupil optical mirror slip.
10. camera lens as claimed in claim 9, which is characterized in that including at least five lens, five lens are suitable by arranging
Sequence is followed successively by the double cemented doublets of entrance pupil optical mirror slip, the first anaberration eyeglass, anaberration, the second anaberration eyeglass and emergent pupil optics
Eyeglass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920416900.2U CN209486370U (en) | 2019-03-29 | 2019-03-29 | A kind of camera lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920416900.2U CN209486370U (en) | 2019-03-29 | 2019-03-29 | A kind of camera lens |
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| Publication Number | Publication Date |
|---|---|
| CN209486370U true CN209486370U (en) | 2019-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920416900.2U Active CN209486370U (en) | 2019-03-29 | 2019-03-29 | A kind of camera lens |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856754A (en) * | 2019-03-29 | 2019-06-07 | 姜志清 | A kind of camera lens |
| WO2022188561A1 (en) * | 2021-03-12 | 2022-09-15 | 杭州海康威视数字技术股份有限公司 | Multispectral camera lens, multispectral optical system and multispectral camera |
-
2019
- 2019-03-29 CN CN201920416900.2U patent/CN209486370U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856754A (en) * | 2019-03-29 | 2019-06-07 | 姜志清 | A kind of camera lens |
| WO2022188561A1 (en) * | 2021-03-12 | 2022-09-15 | 杭州海康威视数字技术股份有限公司 | Multispectral camera lens, multispectral optical system and multispectral camera |
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