CN206532022U - The low distortion light path system of high-resolution and its optics industry camera lens - Google Patents
The low distortion light path system of high-resolution and its optics industry camera lens Download PDFInfo
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- CN206532022U CN206532022U CN201621387530.7U CN201621387530U CN206532022U CN 206532022 U CN206532022 U CN 206532022U CN 201621387530 U CN201621387530 U CN 201621387530U CN 206532022 U CN206532022 U CN 206532022U
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Abstract
The utility model is related to a kind of low distortion light path system of high-resolution and its optics industry camera lens, including the preceding group of eyeglass set gradually along light incident direction, iris diaphgram and after organize eyeglass, the preceding group eyeglass is successively by the first biconvex lens, negative selenodont lens, the first biconcave lens, the second biconvex lens, the first positive selenodont lens group into the rear group eyeglass is made up of the gluing unit of the second biconcave lens and the 3rd biconvex lens contiguity, the second positive selenodont lens and the 4th biconvex lens successively.The low distortion light path system of the high-resolution and its optics industry camera lens are not only simple in structure, and realize the distortion for reducing closely scene shot.
Description
Technical field
The utility model is related to a kind of low distortion light path system of high-resolution and its optics industry camera lens.
Background technology
, there is larger, the unsharp shortcoming of field of view edge of distortion, have begun to not in the high definition industrial lens on existing market
The existing market demand can be met.
The content of the invention
The purpose of this utility model is to provide a kind of low distortion light path system of high-resolution and its optics industry camera lens, no
It is only simple in construction, and realize the distortion for reducing closely scene shot.
The technical solution of the utility model is：A kind of low distortion light path system of high-resolution, including along light incidence side
To the preceding group of eyeglass set gradually, iris diaphgram and after organize eyeglass, it is described before group eyeglass successively by the first biconvex lens, negative crescent moon
Type lens, the first biconcave lens, the second biconvex lens, the first positive selenodont lens group are into the rear group eyeglass is successively by second
The gluing unit of biconcave lens and the 3rd biconvex lens contiguity, the second positive selenodont lens and the 4th biconvex lens composition.
Further, the airspace between first biconvex lens and negative selenodont lens is 0.10mm, described negative
Airspace between selenodont lens and the first biconcave lens is 3.94mm, first biconcave lens and the second biconvex lens
Between airspace be 1.32mm, the airspace between second biconvex lens and the first positive selenodont lens is
0.1mm。
Further, the airspace before described between group eyeglass and rear group eyeglass is 5.9mm, it is described before group eyeglass with can
3.82mm is in the airspace become between diaphragm C, and the airspace between the iris diaphgram and rear group eyeglass is 2.09mm.
Further, the gluing unit and the second positive selenodont lens of the second biconcave lens and the 3rd the biconvex lens contiguity
Between airspace be 0.10mm, the airspace between second positive the selenodont lens and the 4th biconvex lens is
0.10mm。
A kind of low distorted optical industrial lens of high-resolution, including the low distortion light path system of high-resolution, preceding group of eyeglass are set
It is placed in preceding group of lens barrel, the rear portion of the preceding group of lens barrel, which is bolted with, to be installed in body tube and for rear group of group eyeglass after installation
Lens barrel, adjustable diaphragm is arranged in rear group of lens barrel, is provided with focus adjusting mechanism, the body tube and is provided with the rear group lens barrel
Diaphragm governor motion, the rear portion of body tube is also equipped with connecting seat.
Further, first biconvex lens, negative selenodont lens, the first biconcave lens, the second biconvex lens and the
One positive selenodont lens are set in turn in preceding group of lens barrel from after going to, second biconvex lens and the first positive selenodont lens
Between be provided with the first spacer ring, be provided with the second spacer ring, described first between first biconcave lens and the second biconvex lens
It is provided with to be also bolted with the 3rd spacer ring, the preceding group lens barrel between biconvex lens and negative selenodont lens and is pressed on the first biconvex
Preceding trim ring on front side of lens.
Further, the gluing unit of the second biconcave lens and the 3rd the biconvex lens contiguity, the second positive selenodont lens
And the 4th biconvex lens be set in turn in from front to back in rear group of lens barrel, set between the gluing unit and the second positive selenodont lens
The 4th spacer ring is equipped with, the 5th spacer ring, the rear group mirror are provided between second positive the selenodont lens and the 4th biconvex lens
The rear trim ring being pressed on rear side of the 4th biconvex lens is also bolted with cylinder.
Further, the focus adjusting mechanism includes being arranged at focusing runner between body tube, the focusing runner it is interior
Rear portion and the anterior outer ring bolt and focus the outer ring rear portion of runner and the anterior inner ring bolt of body tube of rear group lens barrel are enclosed,
It is further fixed on being radially bolted with the locking nail for runner locking of focusing on focusing ring, the body tube on focusing runner.
Further, the diaphragm governor motion includes being placed on the aperture setting ring in the middle part of body tube, and the diaphragm is adjusted
The diaphragm guide pin stretched into through body tube in rear group of lens barrel is radially bolted with section ring, the diaphragm guide pin is connected with diaphragm,
The second locking nail for being engaged and being locked for aperture setting ring with body tube is additionally provided with the aperture setting ring.
Compared with prior art, the present invention has advantages below：1）The low distorted optical industrial lens of the high-resolution are not
It is only simple in construction, and the focusing mode moved using whole group, close-shot away from up to 0.1m, closer to object distance on realize it is clear into
Picture, realizes that the distortion for reducing closely scene shot is less than 0.5%（Such as Fig. 4）Following purpose, meets industrial lens distortion small
Requirement, and high resolution is in the high definition camera lens of five mega pixels, can be with 4:3 or 16:9 standards 2/3 " fine definition is taken the photograph
Camera is supported the use, and camera lens mtf value in 150lp/mm（Such as Fig. 3）More than 0.3；
2）In structure design（Such as Fig. 2）, lens focusing structure is coordinated and position-limit mechanism using multiple thread, and in camera lens
Preceding micro- " focusing " structure in use end, it is to avoid the limit of camera lens is used.Rear end diaphragm governor motion ensure that diaphragm size simultaneously
Changeability.Devise different spacer ring and trim ring to ensure the airspace between eyeglass and fixing len, so that perfect realize
Camera lens is as various aspects of performance such as matter, distortion.
Brief description of the drawings
Fig. 1 is the structural representation of light path system of the present utility model；
Fig. 2 is the structural representation of camera lens of the present utility model；
Fig. 3 is MTF curve figure of the present utility model；
Fig. 4 is distortion change curve of the present utility model；
In figure：Lens barrel 2- focusing ring 3- focusing rings locking jackscrew 4- is organized before 1- and focuses on runner 5- body tubes 6-
After diaphragm guide pin 7- aperture setting ring 8- connecting seats locking jackscrew 9- connecting seat 10- banking stop lock screws 11-
The second positive the second biconcave lens of biconvex lens 15- of selenodont lens 14- the 3rd of biconvex lens 13- of trim ring 12- the 4th
Lens barrel 20- iris diaphgram 21- diaphragm locking nails are organized after the spacer ring 18- banking stops 19- of the 4th spacer ring 17- of 16- the 5th
22- snap rings the second locking nails of 23- 24- the first positive selenodont lens 25- the first spacer ring the second biconvex lens of 26-
27- locking nails 28- the second spacer ring the first biconcave lens of 29- 30- bears the spacer ring 32- of selenodont lens 31- the 3rd the
Eyeglass is organized after organizing eyeglass B- before trim ring A- before one biconvex lens 33-.
Embodiment
For features described above of the present utility model and advantage can be become apparent, special embodiment below, and coordinate accompanying drawing,
It is described in detail below, but the utility model is not limited to this.
With reference to Fig. 1, Fig. 3 and Fig. 4
A kind of low distortion light path system of high-resolution, including the preceding group of eyeglass A, variable set gradually along light incident direction
Diaphragm 20 and rear group eyeglass B, the preceding group eyeglass are saturating by the first biconvex lens 32, negative selenodont lens 30, the first concave-concave successively
Mirror 29, the second biconvex lens 26, the first positive selenodont lens 24 are constituted, and the rear group eyeglass is successively by the He of the second biconcave lens 15
The gluing unit of 3rd biconvex lens 14 contiguity, the second positive biconvex lens 12 of selenodont lens 13 and the 4th are constituted.
In the present embodiment, the airspace between first biconvex lens and negative selenodont lens is 0.10mm, described
Negative airspace between selenodont lens and the first biconcave lens is 3.94mm, first biconcave lens and the second lenticular
Airspace between mirror is 1.32mm, and the airspace between second biconvex lens and the first positive selenodont lens is
0.1mm。
In the present embodiment, it is described before airspace between group eyeglass and rear group eyeglass be 5.9mm, it is described before group eyeglass with
Airspace between iris diaphgram C is 3.82mm, and the airspace between the iris diaphgram and rear group eyeglass is 2.09mm.
In the present embodiment, the gluing unit and the second positive selenodont of the second biconcave lens and the 3rd the biconvex lens contiguity are saturating
Airspace between mirror is 0.10mm, and the airspace between second positive the selenodont lens and the 4th biconvex lens is
0.10mm。
Referring to figs. 1 to Fig. 4
A kind of low distorted optical industrial lens of high-resolution, including the low distortion light path system of high-resolution, preceding group of eyeglass are set
It is placed in preceding group of lens barrel 1, the rear portion of the preceding group lens barrel, which is bolted with, to be installed in body tube 5 and for being organized after installing after eyeglass
Group lens barrel 19, the adjustable diaphragm 20 is arranged in rear group of lens barrel, and focus adjusting mechanism, the primary mirror are provided with the rear group lens barrel
Diaphragm governor motion is provided with cylinder, the rear portion of body tube is also equipped with connecting seat 9, and the connecting seat locks jackscrew through connecting seat
8 are fixedly connected with body tube.
In the present embodiment, first biconvex lens, negative selenodont lens, the first biconcave lens, the second biconvex lens and
First positive selenodont lens are set in turn in preceding group of lens barrel from after going to, and second biconvex lens and the first positive selenodont are saturating
The first spacer ring 25 is provided between mirror, the second spacer ring 28, institute are provided between first biconcave lens and the second biconvex lens
State and the 3rd spacer ring 31 is provided between the first biconvex lens and negative selenodont lens, be also bolted with and be pressed in the preceding group lens barrel
Preceding trim ring 33 on front side of first biconvex lens.
The installation station of each eyeglass in preceding group of lens barrel can effectively ensure that concentricity by same machine tooling, thus with preceding group
Eyeglass coordinates the axiality for ensureing preceding group light path.The 3rd spacer ring 28 ensures the first biconvex lens and negative selenodont lens simultaneously
Between thang-kng and air distance, the second spacer ring ensures the thang-kng and air between the first biconcave lens and the second biconvex lens
Distance, the first spacer ring ensures thang-kng and air distance between the second biconvex lens and the first positive selenodont lens.Simultaneously
The preceding trim ring of design, it is ensured that the Assembly stability of preceding group of eyeglass.
In the present embodiment, the gluing unit, the second positive selenodont lens and the 4th biconvex lens are set gradually from front to back
In in rear group of lens barrel, being provided with the 4th spacer ring 16, the second positive crescent moon between the gluing unit and the second positive selenodont lens
It is provided with to be also bolted with the 5th spacer ring 17, the rear group lens barrel between type lens and the 4th biconvex lens and is pressed on the 4th biconvex
Rear trim ring 11 on rear side of lens.In order to ensure the airspace between each eyeglass and clearance, the 4th spacer ring, the 5th are devised therebetween
Trim ring prevents eyeglass from loosening or dropping out come group eyeglass Assembly stability after ensureing after spacer ring, design.
In the present embodiment, the focus adjusting mechanism includes the focusing runner 4 being arranged between body tube, the focusing runner
Inner ring rear portion and the anterior outer ring bolt and focus the outer ring rear portion of runner and the anterior inner ring phase spiral shell of body tube of rear group lens barrel
Connect, focusing ring 2 is further fixed on focusing runner, the focusing environment line focus ring locking jackscrew 3 is fixed on focusing runner, institute
State the locking nail 27 being radially bolted with body tube for runner locking of focusing.
In order to realize that it is adjustable that camera lens closely arrives ∞, in the design by adding focus adjusting mechanism, using left-handed bull tooth spiral shell
Line and fine thread mutually coordinate transmission, have the advantages that focusing is quick, flexible, backlash is small.Runner 4 is specially focused on respectively with just
Anti- tooth is connected with rear group lens barrel 19 and body tube 5, and focusing ring 2 locks jackscrew 3 with focusing on runner 4 to consolidate by three focusing rings
It is fixed.Focusing runner 4 is driven to rotate in one direction when external force rotates focusing ring 2, the body tube 5 being now connected with its positive and negative tooth
Moved in the opposite direction respectively with rear group of lens barrel 19.In order to prevent whole light path from taking place along the rotary motion of optical axis, therefore
Set a banking stop 18 to be rotated to organize lens barrel 19 after limiting between the rear portion of body tube and rear group lens barrel, but organize because after lens barrel 20 with
Preceding group of lens barrel 1 is connected through a screw thread into the structure linked together, therefore whole group machinery and light path knot have been driven when adjusting focusing ring
Structure does the motion away from or close to focal plane, it is achieved thereby that the function of focusing.
But this focusing range is limited, relies primarily on the latch between focusing ring 2 and body tube 5 and slot limitation comes
Ensure focusing range.In focus adjusting mechanism, in order to ensure the concentricity of the precision and camera lens of focusing in focussing process, during design
It is required that the screw thread focused between runner 4 and body tube 5 and rear group lens barrel 19, which coordinates, will pass through grinding operation.
In the present embodiment, the diaphragm governor motion includes being placed on the aperture setting ring 7 in the middle part of body tube, the diaphragm
The diaphragm guide pin 6 stretched into through body tube in rear group of lens barrel, group of the diaphragm guide pin and diaphragm are radially bolted with regulation ring
Lever is connected, and the second locking for being engaged and being locked for aperture setting ring with body tube is additionally provided with the aperture setting ring
Nail 23.To realize the function of aperture regulation, iris diaphgram 20 is fixed on rear group by the snap ring 22 that is arranged in rear group of lens barrel
On lens barrel 19, and positioned, while connecting diaphragm 20 and aperture setting ring 7 by diaphragm guide pin 6, led to by diaphragm locking nail
Cross and open the groove of certain angle in rear group of lens barrel to control the size of diaphragm opening, to meet the use ring under different illumination conditions
Border.
Utilize the refractive index and the difference of dispersion of the positive and negative eyeglass of gluing unit, the aberration of corrective lens.Simultaneously in light path movement
On, moved using whole group eyeglass, resolution of lens is up to 5,000,000, distortion and be less than 0.5%.
The technical indicator that the present invention is realized is as follows：
1. focal length：f′=12mm
2. close-shot away from：100mm
3. distortion：≤0.5%
4. relative aperture D/f '=1/2.4
5. the ω of the angle of visual field 2：49.25°
6. resolution ratio：Better than 5,000,000 pixels
7. total length of light path ∑≤50.81mm
8. it is applicable spectral line scope：450nm~650nm
9. camera lens appearance and size：φ35.5×41.1.
The parameter of each eyeglass such as following table in the present invention：
。
The foregoing is only preferred embodiment of the present utility model, it is all according to present utility model application the scope of the claims done it is equal
Deng change and modification, it should all belong to covering scope of the present utility model.
Claims (9)
1. a kind of low distortion light path system of high-resolution, it is characterised in that including preceding group set gradually along light incident direction
Eyeglass, iris diaphgram and after organize eyeglass, it is described before group eyeglass successively by the first biconvex lens, negative selenodont lens, the first concave-concave
Lens, the second biconvex lens, the first positive selenodont lens group are into the rear group eyeglass is successively by the second biconcave lens and the 3rd pair
The gluing unit of convex lens contiguity, the second positive selenodont lens and the 4th biconvex lens composition.
2. the low distortion light path system of high-resolution according to claim 1, it is characterised in that first biconvex lens and
Airspace between negative selenodont lens is 0.10mm, between the air between negative the selenodont lens and the first biconcave lens
3.94mm is divided into, the airspace between first biconcave lens and the second biconvex lens is 1.32mm, second biconvex
Airspace between lens and the first positive selenodont lens is 0.1mm.
3. the low distortion light path system of high-resolution according to claim 1 or 2, it is characterised in that before described group eyeglass and
The airspace between group eyeglass is 5.9mm afterwards, and the airspace between preceding the group eyeglass and iris diaphgram C is 3.82mm,
Airspace between the iris diaphgram and rear group eyeglass is 2.09mm.
4. the low distortion light path system of high-resolution according to claim 3, it is characterised in that second biconcave lens and
Airspace between the gluing unit and the second positive selenodont lens of 3rd biconvex lens contiguity is 0.10mm, second first month of the lunar year
Airspace between tooth form lens and the 4th biconvex lens is 0.10mm.
5. a kind of low distorted optical industrial lens of high-resolution, including the low distortion light path of high-resolution as claimed in claim 1
System, it is characterised in that preceding group of eyeglass is arranged in preceding group of lens barrel, the rear portion of the preceding group lens barrel, which is bolted with, is installed on body tube
Rear group of lens barrel that be interior and being used for group eyeglass after installing, adjustable diaphragm is arranged in rear group of lens barrel, is provided with the rear group lens barrel
Diaphragm governor motion is provided with focus adjusting mechanism, the body tube, the rear portion of body tube is also equipped with connecting seat.
6. the low distorted optical industrial lens of high-resolution according to claim 5, it is characterised in that first lenticular
Mirror, negative selenodont lens, the first biconcave lens, the second biconvex lens and the first positive selenodont lens are set in turn in from after going to
In preceding group of lens barrel, the first spacer ring, first concave-concave are provided between second biconvex lens and the first positive selenodont lens
The second spacer ring is provided between lens and the second biconvex lens, is provided between first biconvex lens and negative selenodont lens
The preceding trim ring being pressed on front side of the first biconvex lens is also bolted with 3rd spacer ring, the preceding group lens barrel.
7. the low distorted optical industrial lens of high-resolution according to claim 5, it is characterised in that second concave-concave is saturating
The gluing unit of mirror and the 3rd biconvex lens contiguity, the second positive selenodont lens and the 4th biconvex lens are set in turn in from front to back
Afterwards in group lens barrel, the 4th spacer ring is provided between the gluing unit and the second positive selenodont lens, the second positive selenodont is saturating
It is provided with to be also bolted with the 5th spacer ring, the rear group lens barrel between mirror and the 4th biconvex lens and is pressed on after the 4th biconvex lens
The rear trim ring of side.
8. the low distorted optical industrial lens of high-resolution according to claim 5,6 or 7, it is characterised in that the focusing
Mechanism includes the focusing runner being arranged between body tube, the inner ring rear portion of the focusing runner and the anterior outer ring of rear group lens barrel
Focusing ring is further fixed on bolt and focus the outer ring rear portion of runner and the anterior inner ring bolt of body tube, focusing runner,
The locking nail for runner locking of focusing radially is bolted with the body tube.
9. the low distorted optical industrial lens of high-resolution according to claim 8, it is characterised in that the diaphragm adjusts machine
Structure includes being placed on radially be bolted with and stretched into through body tube on aperture setting ring in the middle part of body tube, the aperture setting ring after
Diaphragm guide pin in group lens barrel, the diaphragm guide pin is connected with diaphragm, is additionally provided with the aperture setting ring and body tube
It is engaged the second locking nail locked for aperture setting ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621387530.7U CN206532022U (en) | 2016-12-16 | 2016-12-16 | The low distortion light path system of high-resolution and its optics industry camera lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621387530.7U CN206532022U (en) | 2016-12-16 | 2016-12-16 | The low distortion light path system of high-resolution and its optics industry camera lens |
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| Publication Number | Publication Date |
|---|---|
| CN206532022U true CN206532022U (en) | 2017-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621387530.7U Active CN206532022U (en) | 2016-12-16 | 2016-12-16 | The low distortion light path system of high-resolution and its optics industry camera lens |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443975A (en) * | 2016-12-16 | 2017-02-22 | 福建福光天瞳光学有限公司 | Optical industrial lens with high resolution and low distortion |
| CN109917559A (en) * | 2017-12-13 | 2019-06-21 | 长光华大基因测序设备（长春）有限公司 | High-precision optical lens eccentricity adjusts structure and method |
-
2016
- 2016-12-16 CN CN201621387530.7U patent/CN206532022U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443975A (en) * | 2016-12-16 | 2017-02-22 | 福建福光天瞳光学有限公司 | Optical industrial lens with high resolution and low distortion |
| CN106443975B (en) * | 2016-12-16 | 2019-01-04 | 福建福光天瞳光学有限公司 | A kind of low distorted optical industrial lens of high-resolution |
| CN109917559A (en) * | 2017-12-13 | 2019-06-21 | 长光华大基因测序设备（长春）有限公司 | High-precision optical lens eccentricity adjusts structure and method |
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