CN206378632U - Doubly telecentric camera lens and its camera, video recorder, telescope and overlength zoom lens - Google Patents
Doubly telecentric camera lens and its camera, video recorder, telescope and overlength zoom lens Download PDFInfo
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- CN206378632U CN206378632U CN201621410618.6U CN201621410618U CN206378632U CN 206378632 U CN206378632 U CN 206378632U CN 201621410618 U CN201621410618 U CN 201621410618U CN 206378632 U CN206378632 U CN 206378632U
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Abstract
The utility model discloses a kind of doubly telecentric camera lens and its camera, video recorder, telescope and overlength zoom lens, doubly telecentric camera lens, including the object space telecentric lens L set gradually along light incident direction1With image space telecentric lens L2；Object space telecentric lens L1With image space telecentric lens L2Key light overlapping of axles；Object space telecentric lens L1Image space focal length and image space telecentric lens L2Object space focal length coincide, be provided with field stop at the focal length overlapping positions；Object space chief ray is located at infinite distant positions parallel to primary optical axis, entrance pupil, object space telecentric lens L1Object space telecentric beam path is constituted with field stop；Image space chief ray is located at infinite distant positions parallel to primary optical axis, emergent pupil, image space telecentric lens L2Telecentric beam path in image space is constituted with field stop；Its system fading margin is convenient, and strong operability is applied widely, with high-resolution, the ultra-wide depth of field and ultra-low distortion, is particularly suitable for use in machine vision accurate measurement, the extensive use in high precision test field.
Description
Technical field
The utility model is related to optical lens technical field, and in particular to a kind of doubly telecentric camera lens and its camera, video recording
Machine, telescope and overlength zoom lens.
Background technology
With the development of optical devices technologies, camera lens is able to extensive use, especially such as photographs in recent years and camera technique
Technology is continued to develop, and various camera lenses in use more to be run into user and need adjusted situation.
Existing camera lens is generally single lens, and every kind of camera lens is only suitable for specific field, so its many presence can not be carried out
Regulation, it is impossible to realize the conversion between a variety of camera lenses, operability is poor, the problems such as using narrow range.
Utility model content
The utility model provides a kind of doubly telecentric camera lens and its camera, video recorder, telescope and overlength zoom lens, with
Solve can not be adjusted present in existing camera lens, it is impossible to realize the conversion between a variety of camera lenses, operability is poor, makes
The problems such as using narrow range.
According to one side of the present utility model there is provided a kind of doubly telecentric camera lens, including along light incident direction according to
The object space telecentric lens L of secondary setting1With image space telecentric lens L2；
Object space telecentric lens L1With image space telecentric lens L2Key light overlapping of axles；
Object space telecentric lens L1Image space focal length and image space telecentric lens L2Object space focal length coincide, the focal length overlap position
The place of putting is provided with field stop；
Object space chief ray is located at infinite distant positions parallel to primary optical axis, entrance pupil, object space telecentric lens L1And field stop
Constitute object space telecentric beam path；
Image space chief ray is located at infinite distant positions parallel to primary optical axis, emergent pupil, image space telecentric lens L2And field stop
Constitute telecentric beam path in image space.
According to other side of the present utility model there is provided a kind of camera, including fuselage, it is provided with fuselage fast
The camera lens being provided with the inside of aperture, aperture positioned at fuselage interior is provided with the inside of door, shutter, camera lens is such as the utility model one
Doubly telecentric camera lens described in individual aspect.
According to another aspect of the present utility model there is provided a kind of video recorder, including fuselage, words are provided with fuselage
Cylinder, display screen and camera lens, camera lens are the doubly telecentric camera lens as described in one side of the present utility model.
According to another aspect of the present utility model there is provided a kind of telescope, including shell, shell is interior to be entered along light
Penetrate direction and be disposed with object lens, prism and eyepiece, object lens are the doubly telecentric camera lens as described in one side of the present utility model.
According to still another aspect of the present utility model there is provided a kind of overlength zoom lens, including such as of the present utility model one
Doubly telecentric camera lens described in individual aspect, the image space telecentric lens L2Image space side be provided with imaging lens, along optical axis side
To adjustment object space telecentric lens L1With image space telecentric lens L2The distance between, to realize focal length variations.
The beneficial effects of the utility model are：This doubly telecentric camera lens of one side of the present utility model, first, it is wrapped
Include the object space telecentric lens L set gradually along light incident direction1With image space telecentric lens L2；Object space telecentric lens L1And picture
Square telecentric mirror head L2Key light overlapping of axles；It can solve the problem that can not be adjusted present in existing camera lens, it is impossible to realize a variety of
The problem of conversion between camera lens, it can be by object space telecentric lens L1With image space telecentric lens L2Regulation, can make each
The effect that lens construction has reached is planted, and can suitably increase number of lenses by height as requested；
Secondly, its object space chief ray is parallel to primary optical axis, and entrance pupil is located at infinite distant positions, object space telecentric lens L1With regarding
Field diaphragm constitutes object space telecentric beam path；Image space chief ray is located at infinite distant positions parallel to primary optical axis, emergent pupil, image space telecentric mirror
Head L2Telecentric beam path in image space is constituted with field stop；It can solve the problem that operability is poor, the problems such as using narrow scope so that
System fading margin is convenient, and strong operability is applied widely, and it combines the double action of object space telecentricity and image space telecentricity, especially fits
For vision measurement detection field；
In addition, its object space telecentric lens L1Image space focal length and image space telecentric lens L2Object space focal length coincide, the focal length
Field stop is provided with overlapping positions, it takes into full account the influence of the light in imaging, as a kind of high-precision camera lens, it makes
With convenient, with high-resolution, the ultra-wide depth of field and ultra-low distortion, it is particularly suitable for use in machine vision accurate measurement, high accuracy inspection
The extensive use in survey field.
This camera of other side of the present utility model, its camera lens is as described in the utility model one side
Doubly telecentric camera lens, it has easy to use, high-resolution, the ultra-wide depth of field, the advantage of ultra-low distortion.
This video recorder of another aspect of the present utility model, its camera lens is as described in one side of the present utility model
Doubly telecentric camera lens, it takes into full account the influence of the light in imaging so that camera lens precision is high, with good optical characteristics.
This telescope of another aspect of the present utility model, its object lens are as described in one side of the present utility model
Doubly telecentric camera lens.It enters light aperture and to be imaged, enable a person to see clearly the object of distant place, with good definition and
Imaging effect.
This overlength zoom lens of still another aspect of the present utility model, including as described in one side of the present utility model
Doubly telecentric camera lens, adjust object space telecentric lens L along optical axis direction1With image space telecentric lens L2The distance between, to realize Jiao
Away from change, it can be used in observing distant objects, and it has good effect to distant view and feature, distant view can be furthered, and energy
Feature is enough protruded, and instrumentality square telecentric mirror head L can be passed through1With image space telecentric lens L2Distance, realize to overlength zoom lens
The regulation of focal length.
Brief description of the drawings
Fig. 1 is a kind of structural representation of doubly telecentric camera lens of the utility model one embodiment；
Fig. 2 is a kind of structural representation of the object lens of telescope of the utility model one embodiment；
Fig. 3 is the structural representation of the overlength zoom lens of the utility model one embodiment.
Embodiment
A kind of prior art of camera lens is：Camera lens is single lens, and every kind of camera lens is only suitable for specific field, so it is more
In the presence of can not be adjusted, it is impossible to realize the conversion between a variety of camera lenses, operability is poor, the problems such as using narrow range.
Design concept of the present utility model is：It is single lens for existing camera lens, every kind of camera lens is only suitable for specifically
Field, so its many presence can not be adjusted, it is impossible to realize the conversion between a variety of camera lenses, operability is poor, uses model
The problems such as enclosing narrow, the utility model uses a kind of doubly telecentric camera lens, and first, it can be by object space telecentric lens L1And picture
Square telecentric mirror head L2It is adjusted, can suitably increases number of lenses by height as requested so that various lens constructions reach
Effect；Secondly, it causes system fading margin convenient, and strong operability is applied widely；In addition, it combines object space telecentricity and picture
Fang Yuanxin double action, be particularly suitable for use in vision measurement detection field, and it takes into full account the influence of the light in imaging, as
A kind of high-precision camera lens, its is easy to use, with high-resolution, the ultra-wide depth of field and ultra-low distortion, is particularly suitable for use in and is regarded in machine
Feel accurate measurement, the extensive use in high precision test field.
Embodiment one
Fig. 1 is a kind of structural representation of doubly telecentric camera lens of the utility model one embodiment；Fig. 2 is the utility model
A kind of structural representation of the object lens of the telescope of one embodiment；
Referring to Fig. 1, the doubly telecentric camera lens, including the object space telecentric lens L set gradually along light incident direction1And picture
Square telecentric mirror head L2；
Object space telecentric lens L1With image space telecentric lens L2Key light overlapping of axles；
Object space telecentric lens L1Image space focal length and image space telecentric lens L2Object space focal length coincide, the focal length overlap position
The place of putting is provided with field stop 1；
Object space chief ray 3 is located at infinite distant positions parallel to primary optical axis, entrance pupil, object space telecentric lens L1And field stop
1 constitutes object space telecentric beam path；
Image space chief ray 4 is located at infinite distant positions parallel to primary optical axis, emergent pupil, image space telecentric lens L2And field stop
1 constitutes telecentric beam path in image space.
It can be seen that, the doubly telecentric camera lens of the present embodiment, the object space chief ray 3 of its object space 2 is parallel to primary optical axis, and entrance pupil is located at nothing
It is poor remote, object space telecentric lens L1Object space telecentric beam path is constituted with field stop；Image space chief ray 4 is located at parallel to optical axis, emergent pupil
Infinity, image space telecentric lens L2Telecentric beam path in image space is constituted with field stop 1.Both sides telecentric structure combines object space telecentricity knot
The double action of structure and telecentric structure, makes its especially vision measurement detection field.It has easy to use, high-resolution,
The advantages of ultra-wide depth of field, ultra-low distortion, it is particularly suitable for use in machine as the high-precision camera lens for making full use of optical imaging properties
The measurement of device precision visual, the extensive use in high precision test field.
It should be noted that it is preferred that, object space telecentric lens L1With image space telecentric lens L2Being separately mounted to can be along master
On the distance adjusting mechanism of optical axis direction movement.In such manner, it is possible to more facilitate to object space telecentric lens L1With image space telecentric lens L2
Regulation, it is ensured that its degree of regulation and regulation efficiency.
Referring to Fig. 2, the doubly telecentric camera lens of the present embodiment can be by adjusting object space telecentric lens L1With image space telecentric lens
L2The distance between, telescopic system is converted into, using the refraction of lens light, to make light enter aperture and be imaged, is enabled a person to
Enough see the object of distant place clearly.
It is preferred that, image space telecentric lens L2Image space side be provided with charge coupled cell image processor 5, i.e. CCD.
Embodiment two
It is the explanation that the emphasis structure for being transformed into long-focus system adjusted to doubly telecentric camera lens is done in the present embodiment, its
His content is referring to other embodiment of the present utility model.
Fig. 3 is the structural representation of the overlength zoom lens of the utility model one embodiment；
Referring to Fig. 3, image space telecentric lens L2Image space side be provided with imaging lens 6.
It can be seen that, the doubly telecentric camera lens of the present embodiment, by adjusting object space telecentric lens L1With image space telecentric lens L2Between
Distance, is converted into long-focus system, using the refraction of lens light, to make light enter aperture and be imaged A ' B ', enables a person to
See the object AB of distant place clearly.
It should be noted that according to optical principle, telescope adds imaging lens 6 to become overlength zoom lens；Overlength is burnt
Camera lens is existed in daily life, and the crystalline lens of such as human eye is equivalent to imaging lens 6, and retina is equivalent to detector, people
In telescopic observation distant objects AB, telescope is added equivalent on the basis of imaging lens 6, overlength is formd burnt
Camera lens, now i.e. observable distant objects AB.Overlength zoom lens have good effect to distant view and feature, and distant view is furthered, and
Can prominent feature.
It is preferred that, imaging lens 6 are human eye or charge coupled cell image processor 5.
Embodiment three
It is the explanation that camera architecture that emphasis is constituted to doubly telecentric camera lens is done in the present embodiment, other guide is referring to this
The other embodiment of utility model.
Referring to Fig. 1 and Fig. 2, the camera, including fuselage are provided with the inside of shutter, shutter on fuselage and are provided with aperture,
The camera lens positioned at fuselage interior is provided with the inside of aperture, camera lens is the doubly telecentric camera lens as described in embodiment one or embodiment two.
It can be seen that, the camera of the present embodiment, it has easy to use a, high-resolution, the ultra-wide depth of field, ultra-low distortion it is excellent
Gesture.
Example IV
It is the explanation that emphasis is done to the video recorder structure that doubly telecentric camera lens is constituted in the present embodiment, other guide is referring to this
The other embodiment of utility model.
Referring to Fig. 1 and Fig. 2, the video recorder, including fuselage are provided with microphone, display screen and camera lens on fuselage, camera lens is such as
Doubly telecentric camera lens described in embodiment one or embodiment two.
It can be seen that, the video recorder of the present embodiment, it takes into full account the influence of the light in imaging so that camera lens precision is high, tool
There is good optical characteristics.
Embodiment five
It is the explanation that telescope configuration that emphasis is constituted to doubly telecentric camera lens is done in the present embodiment, other guide is referring to this
The other embodiment of utility model.
Referring to Fig. 2, the telescope, including shell, in shell along light incident direction be disposed with object lens, prism and
Eyepiece, object lens are the doubly telecentric camera lens as described in embodiment one or embodiment two.
It can be seen that, it makes light enter aperture and be imaged, and enables a person to see clearly the object AB of distant place, with good definition
And imaging effect.
Embodiment six
It is the explanation that overlength close-burning structure that emphasis is constituted to doubly telecentric camera lens is done in the present embodiment, other guide is referring to this
The other embodiment of utility model.
Referring to Fig. 3, the overlength zoom lens, including the doubly telecentric camera lens as described in embodiment one or embodiment two, image space are remote
Heart camera lens L2Image space side be provided with imaging lens 6, adjust object space telecentric lens L along optical axis direction1With image space telecentric lens
L2The distance between, to realize focal length variations.
It can be seen that, the overlength zoom lens of the present embodiment can be used in observing distant objects, it has distant view and feature well
Effect, can further distant view, and can protrude feature, and can pass through instrumentality square telecentric mirror head L1With image space telecentric lens
L2Distance, realize regulation to overlength zoom lens focal length.
Preferred embodiment of the present utility model is these are only, protection domain of the present utility model is not intended to limit.
All any modification, equivalent substitution and improvements made within spirit of the present utility model and principle etc., are all contained in this practicality new
In the protection domain of type.
Claims (9)
1. doubly telecentric camera lens, it is characterised in that including the object space telecentric lens L set gradually along light incident direction1And image space
Telecentric lens L2；
The object space telecentric lens L1With the image space telecentric lens L2Key light overlapping of axles；
The object space telecentric lens L1Image space focal length and the image space telecentric lens L2Object space focal length coincide, the focal length weight
Close and be provided with field stop at position；
Object space chief ray is located at infinite distant positions parallel to primary optical axis, entrance pupil, the object space telecentric lens L1With the visual field light
Door screen constitutes object space telecentric beam path；
Image space chief ray is located at infinite distant positions parallel to primary optical axis, emergent pupil, the image space telecentric lens L2With the visual field light
Door screen constitutes telecentric beam path in image space.
2. doubly telecentric camera lens as claimed in claim 1, it is characterised in that the object space telecentric lens L1With the image space telecentricity
Camera lens L2It is separately mounted on the distance adjusting mechanism that can be moved along key light direction of principal axis.
3. doubly telecentric camera lens as claimed in claim 1 or 2, it is characterised in that the image space telecentric lens L2Image space side set
It is equipped with charge coupled cell image processor.
4. doubly telecentric camera lens as claimed in claim 2, it is characterised in that the image space telecentric lens L2Image space side set
There are imaging lens.
5. doubly telecentric camera lens as claimed in claim 4, it is characterised in that the imaging lens are human eye or charge coupled cell
Image processor.
6. it is provided with a kind of camera, including fuselage, the fuselage on the inside of shutter, the shutter and is provided with aperture, it is described
The camera lens positioned at the fuselage interior is provided with the inside of aperture, it is characterised in that the camera lens is as any in claim 1-5
Doubly telecentric camera lens described in.
7. it is provided with microphone, display screen and camera lens on a kind of video recorder, including fuselage, the fuselage, it is characterised in that the mirror
Head is the doubly telecentric camera lens as any one of claim 1-5.
8. object lens, prism and eyepiece are disposed with along light incident direction in a kind of telescope, including shell, shell, its
It is characterised by, the object lens are the doubly telecentric camera lens as any one of claim 1-5.
9. a kind of overlength zoom lens, it is characterised in that including the doubly telecentric camera lens as any one of claim 1-5, institute
State image space telecentric lens L2Image space side be provided with imaging lens, adjust the object space telecentric lens L along optical axis direction1With
Image space telecentric lens L2The distance between, to realize focal length variations.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621410618.6U CN206378632U (en) | 2016-12-21 | 2016-12-21 | Doubly telecentric camera lens and its camera, video recorder, telescope and overlength zoom lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621410618.6U CN206378632U (en) | 2016-12-21 | 2016-12-21 | Doubly telecentric camera lens and its camera, video recorder, telescope and overlength zoom lens |
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| Publication Number | Publication Date |
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| CN206378632U true CN206378632U (en) | 2017-08-04 |
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| CN201621410618.6U Active CN206378632U (en) | 2016-12-21 | 2016-12-21 | Doubly telecentric camera lens and its camera, video recorder, telescope and overlength zoom lens |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107557A (en) * | 2018-01-10 | 2018-06-01 | 佛山华国光学器材有限公司 | A kind of high magnification bilateral telecentric lens of long reach |
| CN108106494A (en) * | 2018-01-17 | 2018-06-01 | 哈尔滨工业大学 | A kind of medium-wave infrared target simulation system using telecentric beam path in image space |
| CN108594424A (en) * | 2018-06-05 | 2018-09-28 | 宾努克斯科技（佛山）有限公司 | A kind of zoomable doubly telecentric optical detection apparatus |
| CN109931870A (en) * | 2019-04-03 | 2019-06-25 | 山东大学 | A kind of height detection method and device of view-based access control model detection |
| CN112179628A (en) * | 2020-09-29 | 2021-01-05 | 北京理工大学 | Image space telecentric lens for optical measurement |
-
2016
- 2016-12-21 CN CN201621410618.6U patent/CN206378632U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107557A (en) * | 2018-01-10 | 2018-06-01 | 佛山华国光学器材有限公司 | A kind of high magnification bilateral telecentric lens of long reach |
| CN108107557B (en) * | 2018-01-10 | 2024-01-16 | 佛山华国光学器材有限公司 | High-magnification double-side telecentric lens with long working distance |
| CN108106494A (en) * | 2018-01-17 | 2018-06-01 | 哈尔滨工业大学 | A kind of medium-wave infrared target simulation system using telecentric beam path in image space |
| CN108594424A (en) * | 2018-06-05 | 2018-09-28 | 宾努克斯科技（佛山）有限公司 | A kind of zoomable doubly telecentric optical detection apparatus |
| CN109931870A (en) * | 2019-04-03 | 2019-06-25 | 山东大学 | A kind of height detection method and device of view-based access control model detection |
| CN112179628A (en) * | 2020-09-29 | 2021-01-05 | 北京理工大学 | Image space telecentric lens for optical measurement |
| CN112179628B (en) * | 2020-09-29 | 2021-11-19 | 北京理工大学 | Image space telecentric lens for optical measurement |
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Effective date of registration: 20201020 Address after: 261031 north of Yuqing street, east of Dongming Road, high tech Zone, Weifang City, Shandong Province (Room 502, Geer electronic office building) Patentee after: GoerTek Optical Technology Co.,Ltd. Address before: 266104 Laoshan Qingdao District North House Street investment service center room, Room 308, Shandong Patentee before: GOERTEK TECHNOLOGY Co.,Ltd. |
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