CN110456492A - A kind of zoom monitoring camera - Google Patents
A kind of zoom monitoring camera Download PDFInfo
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- CN110456492A CN110456492A CN201910612499.4A CN201910612499A CN110456492A CN 110456492 A CN110456492 A CN 110456492A CN 201910612499 A CN201910612499 A CN 201910612499A CN 110456492 A CN110456492 A CN 110456492A
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- lens
- positive light
- light coke
- negative power
- group
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
The invention discloses a kind of zoom monitoring cameras, from the object side to the image side, it successively include zoom group, diaphragm, compensation group and four parts of rear fixed group composition, the zoom group by negative power the first lens, second lens of negative power and the third lens composition of positive light coke, the compensation group by positive light coke the 4th lens, 5th lens of positive light coke, 6th lens of negative power, 7th lens of positive light coke, 8th lens of positive light coke, 9th lens of negative power, tenth lens of positive light coke and the 11st lens composition of positive light coke, 5th lens of the positive light coke and the 6th lens group of negative power become the first balsaming lens of negative power, 8th lens of the positive light coke and the 9th lens group of negative power become the second balsaming lens of negative power, described fixed group by negative power The 12nd lens and positive light coke the 13rd lens composition.Zoom monitoring camera of the present invention is able to achieve the zoom of 4-16mm focal length, high resolution, day and night it is confocal, stability is good, compact-sized, suitable in 24 hours monitoring systems of various places.
Description
Technical field
The present invention relates to optical imaging apparatus technical field, specially a kind of zoom monitoring camera.
Background technique
If monitoring camera will monitor large-scale target place, it is necessary to bigger field angle, i.e. wide-angle lens；Such as
Fruit will differentiate small-scale target detail, it is necessary to long focal length, i.e. telephoto lens.For tight shot, wide-angle with
Focal length is conflicting, not can be implemented simultaneously.And zoom monitoring camera rolls into one wide-angle with focal length, is realized with short focus end big
The target monitoring of range realizes small-scale details identification with focal length end.And visible light wave range and near infrared light wave band are confocal
Imaging, also solves the problems, such as that monitoring camera night monitored picture is unclear.
Summary of the invention
The purpose of the present invention is to overcome the deficiency in the prior art, provides a kind of function admirable, day and night confocal high definition becomes
Burnt monitoring camera.
In order to reach above-mentioned purpose of design, the technical scheme adopted by the invention is that: a kind of zoom monitoring camera, from object space
It successively include zoom group, diaphragm, compensation group and four parts of rear fixed group composition, the zoom group is by negative power to image space
The third lens of first lens, the second lens of negative power and positive light coke form, and the compensation group is by the of positive light coke
Four lens, the 5th lens of positive light coke, the 6th lens of negative power, the 7th lens of positive light coke, positive light coke
Eight lens, the 9th lens of negative power, the tenth lens of positive light coke and positive light coke the 11st lens composition, it is described just
5th lens of focal power and the 6th lens group of negative power become the first balsaming lens of negative power, the positive light coke
The 8th lens and negative power the 9th lens group become negative power the second balsaming lens, described fixed group by negative light focus
12nd lens of degree and the 13rd lens composition of positive light coke, the 12nd lens of the negative power and positive light coke
13rd lens group becomes the third balsaming lens of positive light coke, and the first lens of the negative power are being convex to for negative power
The meniscus lens of object space；Second lens of the negative power are the biconcave lens of negative power；The third of the positive light coke
Lens are the meniscus lens for being convex to object space of positive light coke；4th lens of the positive light coke are the lenticular of positive light coke
Mirror；5th lens of the positive light coke are the biconvex lens of positive light coke, and the 6th lens of the negative power are negative light focus
The biconcave lens of degree；7th lens of the positive light coke are the biconvex lens of positive light coke；The 8th of the positive light coke is thoroughly
Mirror is the biconvex lens of positive light coke；9th lens of the negative power are the biconcave lens of negative power；The positive light focus
Tenth lens of degree are the meniscus lens for being convex to image space of positive light coke；11st lens of the positive light coke are with positive light
The biconvex lens of focal power；12nd lens of the negative power are the biconcave lens with negative power；The positive light coke
The 13rd lens be the biconvex lens with positive light coke.
Diaphragm is equipped between the zoom group and compensation group.
First lens to the 13rd lens are spherical lens.
During the focal length of the zoom lens changes to 16mm from 4mm, the spacing between zoom group and compensation group becomes
Change range is 53.52 ~ 3.84mm, and the spacing variation range between compensation group and rear fixed group is 1.39 ~ 15.59mm.The present invention
The utility model has the advantages that a kind of zoom monitoring camera being designed to according to above scheme, the first lens L1 ~ positive light coke of negative power
The optical system that is constituted of the 13rd lens L13 optical lens reached following technical indicator: realize focal length f ' from 4mm to
4 times of zooming transforms of 16mm；Realize the confocal imaging of visible light wave range and near infrared band；Realize camera lens visual field from 136 ° to
34 ° of conversion.Zoom monitoring camera of the present invention is able to achieve the zoom of 4-16mm focal length, high resolution, day and night confocal, stability
It is good, compact-sized, suitable in 24 hours monitoring systems of various places.
Detailed description of the invention
Fig. 1 is the wide-angle side optical texture schematic diagram of the embodiment of the present invention；
Fig. 2 is the focal length end optical texture schematic diagram of this embodiment of the present invention；
Fig. 3 is the assembling structure schematic diagram of the embodiment of the present invention.
Specific embodiment
A specific embodiment of the invention is described in detail with reference to the accompanying drawing.As shown in Figs. 1-3: a kind of zoom prison
Camera lens is controlled, successively includes zoom group A01, diaphragm STOP, compensation group A02 and rear fixed group tetra- part group of A03 from the object side to the image side
At the zoom group A01 is saturating by the third of the first lens L1 of negative power, the second lens L2 of negative power and positive light coke
Mirror L3 composition, the compensation group A02 is by the 4th lens L4 of positive light coke, the 5th lens L5 of positive light coke, negative power
6th lens L6, the 7th lens L7 of positive light coke, the 8th lens L8 of positive light coke, the 9th lens L9 of negative power, just
11st lens L11 of the tenth lens L10 of focal power and positive light coke composition, the 5th lens L5 of the positive light coke and negative
Focal power the 6th lens L6 composition be negative power the first balsaming lens B01, the 8th lens L8 of the positive light coke and
The 9th lens L9 composition of negative power is the second balsaming lens B02 of negative power, and the fixed group A03 is by negative power
13rd lens L13 of the 12nd lens L12 and positive light coke composition, the 12nd lens L12 and positive light of the negative power
The 13rd lens L13 composition of focal power is the third balsaming lens A03 of positive light coke, and the first lens L1 of the negative power is
The meniscus lens for being convex to object space of negative power；Second lens L2 of the negative power is the biconcave lens of negative power；Institute
The third lens L3 for stating positive light coke is the meniscus lens for being convex to object space of positive light coke；4th lens L4 of the positive light coke
For the biconvex lens of positive light coke；5th lens L5 of the positive light coke is the biconvex lens of positive light coke, the negative light focus
6th lens L6 of degree is the biconcave lens of negative power；7th lens L7 of the positive light coke is the lenticular of positive light coke
Mirror；8th lens L8 of the positive light coke is the biconvex lens of positive light coke；9th lens L9 of the negative power is negative
The biconcave lens of focal power；Tenth lens L10 of the positive light coke is the meniscus lens for being convex to image space of positive light coke；It is described
11st lens L11 of positive light coke is the biconvex lens with positive light coke；12nd lens L12 of the negative power is
Biconcave lens with negative power；13rd lens L13 of the positive light coke is the biconvex lens with positive light coke.
The lens parameter is as follows:
Diaphragm STOP is equipped between the zoom group A01 and compensation group A02.
The first lens L1 to the 13rd lens L13 is spherical lens.
During the focal length of the zoom lens changes to 16mm from 4mm, between zoom group A01 and compensation group A02
Spacing variation range is 53.52 ~ 3.84mm, the spacing variation range between compensation group A02 and rear fixed group A03 is 1.39 ~
15.59mm。
In conjunction with attached drawing 3, the specific embodiment of the embodiment of the present invention is further described:
First lens L1 of the negative power of the zoom group A01, the second lens L2 of negative power, the third of positive light coke are saturating
Mirror L3 is assembled into one S11 of lens barrel by one S12 of spacer ring and one S10 of pressing ring.One S11 of lens barrel passes through one S2 of focusing ring and primary mirror
Cylinder S1 is connected.
4th lens L4 of the positive light coke of the compensation group A02, the first balsaming lens B01, positive light coke the 7th thoroughly
Mirror L7, the second balsaming lens B02, the tenth lens L10 of positive light coke, positive light coke the 11st lens L11 pass through pressing ring two
S13, two S15 of spacer ring, three S16 of spacer ring, four S17 of spacer ring, five S18 of spacer ring are assembled into two S14 of lens barrel, lens barrel two
S14 is connected by two S3 of focusing ring and three S4 of focusing ring with body tube S1, and auxiliary lens barrel S5 plays switching, by two S3 of focusing ring
It connects with three S4 of focusing ring, while being connected with interface S6.
The third balsaming lens B03 of fixed group A03 is directly loadable into body tube S1 by outer pressing ring S7 after described.
The zoom monitoring camera is continuous vari-focus system, and back work distance is from constant under any focal length, that is to say, that
It is adjustable always clear that picture is imaged in zooming procedure.
Claims (4)
1. a kind of zoom monitoring camera, it is characterised in that: from the object side to the image side, successively include zoom group, diaphragm, compensation group and after
Four parts of fixed group composition, the zoom group is by the first lens of negative power, the second lens of negative power and positive light coke
The third lens composition, the compensation group by the 4th lens of positive light coke, the 5th lens of positive light coke, negative power the
Six lens, the 7th lens of positive light coke, the 8th lens of positive light coke, the 9th lens of negative power, positive light coke
11st lens of ten lens and positive light coke composition, the 5th lens of the positive light coke and the 6th lens group of negative power
As the first balsaming lens of negative power, the 8th lens of the positive light coke and the 9th lens group of negative power become negative
Second balsaming lens of focal power, described fixed group by the 12nd lens of negative power and the 13rd lens group of positive light coke
At the 12nd lens of the negative power and the 13rd lens group of positive light coke become the third gluing of positive light coke thoroughly
Mirror, the first lens of the negative power are the meniscus lens for being convex to object space of negative power；The second of the negative power is thoroughly
Mirror is the biconcave lens of negative power；The third lens of the positive light coke are the meniscus lens for being convex to object space of positive light coke；
4th lens of the positive light coke are the biconvex lens of positive light coke；5th lens of the positive light coke are positive light coke
Biconvex lens, the 6th lens of the negative power are the biconcave lens of negative power；7th lens of the positive light coke are
The biconvex lens of positive light coke；8th lens of the positive light coke are the biconvex lens of positive light coke；The negative power
9th lens are the biconcave lens of negative power；Tenth lens of the positive light coke are the bent moon for being convex to image space of positive light coke
Lens；11st lens of the positive light coke are the biconvex lens with positive light coke；The 12nd of the negative power is thoroughly
Mirror is the biconcave lens with negative power；13rd lens of the positive light coke are the biconvex lens with positive light coke.
2. a kind of zoom monitoring camera according to claim 1, it is characterised in that: set between the zoom group and compensation group
There is diaphragm.
3. a kind of zoom monitoring camera according to claim 1, it is characterised in that: first lens to the 13rd lens
It is spherical lens.
4. a kind of zoom monitoring camera according to claim 1, it is characterised in that: the focal length of the zoom lens is from 4mm
During changing to 16mm, the spacing variation range between zoom group and compensation group is 53.52 ~ 3.84mm, and compensation group is with after
Spacing variation range between fixed group is 1.39 ~ 15.59mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018221031751 | 2018-12-14 | ||
| CN201822103175 | 2018-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110456492A true CN110456492A (en) | 2019-11-15 |
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ID=68482334
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921058111.2U Active CN210270355U (en) | 2018-12-14 | 2019-07-09 | Zoom monitoring lens |
| CN201910612499.4A Pending CN110456492A (en) | 2018-12-14 | 2019-07-09 | A kind of zoom monitoring camera |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921058111.2U Active CN210270355U (en) | 2018-12-14 | 2019-07-09 | Zoom monitoring lens |
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| Country | Link |
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| CN (2) | CN210270355U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111061051A (en) * | 2020-01-15 | 2020-04-24 | 福建福光天瞳光学有限公司 | Short-focus high-resolution visual lens and working method thereof |
| CN114089519A (en) * | 2021-12-08 | 2022-02-25 | 舜宇光学(中山)有限公司 | Zoom lens |
| CN117031692A (en) * | 2023-08-07 | 2023-11-10 | 河南翊轩光电科技有限公司 | Low-distortion high-resolution industrial lens and imaging device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111522133B (en) * | 2020-05-13 | 2023-10-24 | 福建福光天瞳光学有限公司 | Large-aperture large-target-surface high-resolution half-group compensation focusing lens and working method thereof |
| CN114114614B (en) * | 2021-11-01 | 2024-06-28 | 湖南长步道光学科技有限公司 | Short-focus projection optical system |
-
2019
- 2019-07-09 CN CN201921058111.2U patent/CN210270355U/en active Active
- 2019-07-09 CN CN201910612499.4A patent/CN110456492A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111061051A (en) * | 2020-01-15 | 2020-04-24 | 福建福光天瞳光学有限公司 | Short-focus high-resolution visual lens and working method thereof |
| CN114089519A (en) * | 2021-12-08 | 2022-02-25 | 舜宇光学(中山)有限公司 | Zoom lens |
| CN117031692A (en) * | 2023-08-07 | 2023-11-10 | 河南翊轩光电科技有限公司 | Low-distortion high-resolution industrial lens and imaging device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN210270355U (en) | 2020-04-07 |
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