CN106990513A - Electromotion focusing formula uncooled ir is dolly-out,ed dolly-back type camera lens and its method of work - Google Patents
Electromotion focusing formula uncooled ir is dolly-out,ed dolly-back type camera lens and its method of work Download PDFInfo
- Publication number
- CN106990513A CN106990513A CN201710323910.7A CN201710323910A CN106990513A CN 106990513 A CN106990513 A CN 106990513A CN 201710323910 A CN201710323910 A CN 201710323910A CN 106990513 A CN106990513 A CN 106990513A
- Authority
- CN
- China
- Prior art keywords
- dolly
- cylinder
- group
- uncooled
- camera lens
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Eye Examination Apparatus (AREA)
- Lenses (AREA)
Abstract
Dolly-out,ed dolly-back type camera lens and its method of work the present invention relates to a kind of electromotion focusing formula uncooled ir, including lens barrel, preceding group of A, after organize B, preceding group of A eyeglass is positive light coke, group B eyeglasses are positive light coke afterwards, lens barrel includes preceding main cylinder, cylinder afterwards, before preceding group of A is located in main cylinder, preceding trim ring is provided with preceding main cylinder, group B is located in rear cylinder afterwards, the rear trim ring that B is organized after being used to fix is provided with cylinder afterwards, rear jacket casing is located at interior by preceding main tube rear end, afterwards cylinder can relatively preceding main cylinder move forward and backward, preceding main tube rear end outer cover is provided with turning set, turning set peripheral ring is provided with bulge loop, bulge loop periphery is evenly equipped with teeth groove, cylinder periphery is provided with cam rail afterwards, bulge loop rear vertical is provided with cam guide pin, cam guide pin lower end sequentially passes through turning set, stretched into after preceding main cylinder in cam rail, preceding main cylinder is provided with focusing motor, the present invention realizes imaging performance of the air away from change adjustment optical system in the case of different temperatures between eyeglass.
Description
Technical field
Dolly-out,ed dolly-back type camera lens and its method of work the present invention relates to a kind of electromotion focusing formula uncooled ir.
Background technology
As the fast development of science and technology, uncooled detector technology are continued to develop and increasingly mature, LONG WAVE INFRARED
Non-brake method optical system has obtained wide hair application in military and civilian field.Because infrared optical material and mechanical material are in temperature
Can produce thermal deformation during degree change, thus operating temperature acute variation can cause the focal length variations of optical system, image planes it is elegant,
The influences such as image quality decline.In order to eliminate or reduce influence of the temperature change to optical system imaging, it is necessary to using corresponding
Compensation technique, makes optical system keep focal length constant in a larger temperature range, it is ensured that image quality it is good.
The content of the invention
In view of the deficiencies in the prior art, the technical problems to be solved by the invention are to provide a kind of electromotion focusing formula non-brake method
Infrared type camera lens and its method for work of dolly-out,ing dolly-back.
In order to solve the above-mentioned technical problem, the technical scheme is that：A kind of electromotion focusing formula uncooled ir is dolly-out,ed dolly-back
Type camera lens, including lens barrel, the optical system that is arranged in body tube, the optical system are included along light incidence side from left to right
To the preceding group of A set gradually, B is organized afterwards, preceding group of A eyeglass is positive light coke, rear group B eyeglasses are positive light coke, before the preceding group A is
Group A, rear group B organize B after being, the airspace between preceding group of A and rear group B is 43.94 ~ 45.94mm, and the lens barrel includes preceding main
Cylinder, rear cylinder, before preceding group of A is arranged in main cylinder, are provided with the preceding trim ring for fixed preceding group A, after rear group B is arranged in preceding main cylinder
Be provided with cylinder, in rear cylinder be used for it is fixed after organize B rear trim ring, in rear jacket casing is located at by the preceding main tube rear end, rear cylinder can be relative
Preceding main cylinder is moved forward and backward, and the preceding main tube rear end outer cover is provided with turning set, and turning set peripheral ring is provided with bulge loop, and bulge loop periphery is equal
Teeth groove is furnished with, rear cylinder periphery is provided with cam rail, and bulge loop rear vertical is provided with cam guide pin, and cam guide pin lower end is passed through successively
Stretched into after wearing turning set, preceding main cylinder in cam rail, focusing motor is provided with the preceding main cylinder, focused on the output shaft of motor
It is provided with the regulation gear with teeth groove engaged transmission.
Further, the focusing motor side is provided with potentiometer, and potentiometer is arranged on preceding main cylinder, the axle of potentiometer
Portion is provided with focuses gear with teeth groove engaged transmission.
Further, extreme position contact switch A, extreme position contact switch B, contact are provided with the preceding group lens barrel
Positioning screw is provided between switch A, contact switch B, positioning screw is arranged on turning set.
Further, the rear tube rear end is provided with switching circle, and switching circle is screwed on rear cylinder.
A kind of electromotion focusing formula uncooled ir is dolly-out,ed dolly-back the method for work of type camera lens：Pass through the regulation gear on motor of focusing
Turning set is driven to rotate, cam guide pin is fixed on rear group of lens barrel guide pin simultaneously and slided along cam rail, after guide pin drives before cylinder
It is mobile afterwards to realize focusing.
Further, potentiometer exports pulse electrical signal while voltage and current is adjusted, when reaching precalculated position
Wait, by adjusting voltage so that potentiometer obtains electric signal, so that the gear that focuses on potentiometer changes outputting torsion cooperation
Pinion rotation on motor, plays a part of positioning.
Compared with prior art, the invention has the advantages that：Structure design is simple, compact, reasonable, passes through motor
With the cooperation of potentiometer, imaging of the air away from change adjustment optical system in the case of different temperatures between eyeglass is realized
Optical imagery performance is also significantly improved under energy and different object distances.
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
Brief description of the drawings
Fig. 1 is the structural representation of optical system of the present invention；
Fig. 2 is unitary construction schematic diagram one of the present invention；
Fig. 3 is Fig. 2 right view.
In figure：
A is organized before A-；B is organized after B-；C- image planes；Main cylinder before 1-；2- group of motors；3- cam guide pins；4- turning sets；5- switching circles；6-
Preceding trim ring；Cylinder after 7-；Trim ring after 8-；9- potentiometers；10- contact switch A；11- positioning screws；12- contact switch B.
Embodiment
For the features described above and advantage of the present invention can be become apparent, special embodiment below, and coordinate accompanying drawing, make detailed
Carefully it is described as follows.
As shown in Figure 1 and 2, a kind of electromotion focusing formula uncooled ir is dolly-out,ed dolly-back type camera lens, including lens barrel, is arranged on body tube
Interior optical system, the optical system includes along the light preceding group of A that incident direction is set gradually from left to right, organizes B, preceding group afterwards
A eyeglasses are positive light coke, and rear group B eyeglasses are positive light coke, it is described before group A be preceding group A, rear group B organizes B after being, preceding group of A and rear group
Airspace between B is 43.94 ~ 45.94mm, and the lens barrel includes preceding main cylinder, rear cylinder, preceding before preceding group of A is arranged in main cylinder
It is provided with main cylinder for the fixed preceding preceding trim ring for organizing A, B is organized afterwards and is arranged in rear cylinder, provided with for organizing B's after fixing in rear cylinder
Trim ring afterwards, in rear jacket casing is located at by the preceding main tube rear end, rear cylinder can relatively preceding main cylinder move forward and backward, outside the preceding main tube rear end
Portion is arranged with turning set, and turning set peripheral ring is provided with bulge loop, and bulge loop periphery is evenly equipped with teeth groove, and rear cylinder periphery is provided with cam and led
Groove, bulge loop rear vertical is provided with cam guide pin, and cam rail is stretched into cam guide pin lower end after sequentially passing through turning set, preceding main cylinder
It is interior, focusing motor is provided with the preceding main cylinder, the regulation tooth with teeth groove engaged transmission is provided with the output shaft for motor of focusing
Wheel.
In the present embodiment, in order to prevent focusing terminates rear bulge loop from rotating without reason, the focusing motor side is provided with electricity
Position device, for focal length positioning, potentiometer is arranged on preceding main cylinder, and the axle portion of potentiometer is provided with to be focused with teeth groove engaged transmission
Gear.
In the present embodiment, extreme position contact switch A, extreme position contact switch B are provided with the preceding group lens barrel,
Positioning screw is provided between contact switch A, contact switch B, positioning screw is arranged on turning set, when bulge loop turns to two
, it is necessary to touch contact switch to leave the motor off work by positioning screw during extreme position.
In the present embodiment, the rear tube rear end is provided with switching circle, and switching circle is screwed on rear cylinder, described
The ridge and video camera that M34X0.75-6g is devised on switching circle coordinate.
A kind of electromotion focusing formula uncooled ir is dolly-out,ed dolly-back the method for work of type camera lens：Pass through the regulation gear on motor of focusing
Turning set is driven to rotate, cam guide pin is fixed on rear group of lens barrel guide pin simultaneously and slided along cam rail, after guide pin drives before cylinder
It is mobile afterwards to realize focusing.
In the present embodiment, the effect of potentiometer is while voltage and current is adjusted, to export a kind of pulse electrical signal,
When reaching precalculated position, by adjusting voltage（Power-off changes voltage swing）So that potentiometer obtains electric signal, so that
The pinion rotation focused on gear change outputting torsion cooperation motor on potentiometer, plays a part of positioning（For example work as motor
Potentiometer receives electric signal during power-off, and increase torsion makes motor stop immediately to be held in a predetermined position in time）.
In the present embodiment, the optical system being made up of above-mentioned lens set has reached following optical index：
1) focal length：f′=50mm；
2) relative aperture F：1.0；
3) angle of visual field：2w≥16°；
4) resolution ratio：It can be adapted to 640 × 512 17 μm of detector video cameras；
5) total length of light path ∑≤68.49mm, optics rear cut-off distance l ' >=11.53mm；
6) it is applicable spectral line scope：8μm~12μm；
Each lens parameters are as follows：
Aspheric mask body face type equation is as follows：
Z=cr^2/(1+√[1-(1+k)c^2r^2)]+A0r^2+A1r^4+A2r^6+A3r^8+A4r^10
Wherein：
C=1/R in S2, R=59.233, k=0, A0=0, A1=8.349E-008, A2=4.285E-011, A3=- 2.035E-014；
C=1/R in S3, R=25.235, k=0, A0=0, A1=- 7.565E-008, A2=1.617E-009, A3=- 6.345E-011,
A4=1.247E-013。
In optical design, aberration correction and balance are carried out to 8~12 μm of wide spectral ranges, make camera lens in wide spectrum model
Enclosing all has excellent picture matter, realizes that wide spectrum is confocal, and such camera lens can blur-free imaging in middle long wave limit；From height folding
Penetrate, the optical glass material of low dispersion, by designing and optimizing, correct the various aberrations of optical lens, realize camera lens high
The advantages of resolution ratio, object lens of large relative aperture, low distortion；Distortion is smaller, below 1%, has preferably relative to old structural aberration
Control；In structure design, both ensured camera lens concentricity, precision and axial location it is accurate, again as far as possible make the structure of camera lens
It is compact, attractive in appearance；By the cooperation of group of motors and potentiometer group, the air in the case of different temperatures between eyeglass is realized away from change
Change optical imagery performance under the imaging performance and different object distances of adjustment optical system also to significantly improve.
The present invention is not limited to above-mentioned preferred forms, and anyone can show that other are each under the enlightenment of the present invention
The electromotion focusing formula uncooled ir of kind of form is dolly-out,ed dolly-back type camera lens and its method of work.It is all to be done according to scope of the present invention patent
Equivalent changes and modifications, should all belong to the present invention covering scope.
Claims (6)
- The type camera lens 1. a kind of electromotion focusing formula uncooled ir is dolly-out,ed dolly-back, it is characterised in that：Including lens barrel, it is arranged in body tube Optical system, the optical system includes along the light preceding group of A that incident direction is set gradually from left to right, organizes B, preceding group of A mirror afterwards Piece is positive light coke, and rear group B eyeglasses are positive light coke, it is described before group A be preceding group A, rear group B organized after being B, preceding group of A and rear group B it Between airspace be 43.94 ~ 45.94mm, the lens barrel includes preceding main cylinder, rear cylinder, preceding group of A be arranged on before in main cylinder, preceding master It is provided with tin for the fixed preceding preceding trim ring for organizing A, B is organized afterwards and is arranged in rear cylinder, provided with for being organized after fixing after B in rear cylinder Trim ring, in rear jacket casing is located at by the preceding main tube rear end, rear cylinder can relatively preceding main cylinder move forward and backward, outside the preceding main tube rear end Turning set is arranged with, turning set peripheral ring is provided with bulge loop, and bulge loop periphery is evenly equipped with teeth groove, and rear cylinder periphery is provided with cam rail, Bulge loop rear vertical is provided with cam guide pin, and cam guide pin lower end is stretched into cam rail after sequentially passing through turning set, preceding main cylinder, Focusing motor is provided with the preceding main cylinder, the regulation gear with teeth groove engaged transmission is provided with the output shaft for motor of focusing.
- The type camera lens 2. electromotion focusing formula uncooled ir according to claim 1 is dolly-out,ed dolly-back, it is characterised in that：The focusing electricity Machine side is provided with potentiometer, and potentiometer is arranged on preceding main cylinder, and the axle portion of potentiometer is provided with determines with teeth groove engaged transmission Burnt gear.
- The type camera lens 3. electromotion focusing formula uncooled ir according to claim 2 is dolly-out,ed dolly-back, it is characterised in that：Group mirror before described Extreme position contact switch A, extreme position contact switch B are provided with cylinder, it is fixed to be provided between contact switch A, contact switch B Position screw, positioning screw is arranged on turning set.
- The type camera lens 4. electromotion focusing formula uncooled ir according to claim 3 is dolly-out,ed dolly-back, it is characterised in that：After the rear cylinder End is provided with switching circle, and switching circle is screwed on rear cylinder.
- The method of work of type camera lens 5. a kind of electromotion focusing formula uncooled ir is dolly-out,ed dolly-back, using as claimed in claim 4 electronic Focusing type uncooled ir is dolly-out,ed dolly-back type camera lens, it is characterised in that：By focusing, the regulation gear on motor drives turning set to rotate, Cam guide pin is fixed on rear group of lens barrel, while guide pin is slided along cam rail, cylinder is movable after guide pin drives realizes focusing.
- The method of work of type camera lens 6. electromotion focusing formula uncooled ir according to claim 5 is dolly-out,ed dolly-back, it is characterised in that： Potentiometer exports pulse electrical signal while voltage and current is adjusted, and when reaching precalculated position, is caused by adjusting voltage Potentiometer obtains electric signal, so that the pinion rotation focused on gear change outputting torsion cooperation motor on potentiometer, rises To the effect of positioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710323910.7A CN106990513B (en) | 2017-05-10 | 2017-05-10 | Electric focusing type uncooled infrared telephoto lens and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710323910.7A CN106990513B (en) | 2017-05-10 | 2017-05-10 | Electric focusing type uncooled infrared telephoto lens and working method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106990513A true CN106990513A (en) | 2017-07-28 |
| CN106990513B CN106990513B (en) | 2022-10-25 |
Family
ID=59417689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710323910.7A Active CN106990513B (en) | 2017-05-10 | 2017-05-10 | Electric focusing type uncooled infrared telephoto lens and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106990513B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107390349A (en) * | 2017-08-30 | 2017-11-24 | 福建福光股份有限公司 | A kind of long wave refrigeration mode is without thermalization camera lens |
| CN107479174A (en) * | 2017-09-02 | 2017-12-15 | 福建福光股份有限公司 | A kind of LONG WAVE INFRARED optical system |
| CN107505685A (en) * | 2017-09-29 | 2017-12-22 | 福建福光天瞳光学有限公司 | Electromotion focusing LONG WAVE INFRARED camera lens and its method of work |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5827109A (en) * | 1981-08-10 | 1983-02-17 | Olympus Optical Co Ltd | Distance controller for camera |
| CN106094174A (en) * | 2016-08-26 | 2016-11-09 | 福建福光天瞳光学有限公司 | Far infrared long wave dolly-out,s dolly-back high mist transmitting without transconversion into heat camera lens and preparation method thereof |
| CN106094182A (en) * | 2016-08-26 | 2016-11-09 | 福建福光股份有限公司 | Folded form strong Penetrating Fog high definition zooming camera lens |
| CN106443991A (en) * | 2016-12-16 | 2017-02-22 | 福建福光天瞳光学有限公司 | Long shot type long wave infrared motorized zoom lens and operating method thereof |
| CN106483644A (en) * | 2016-12-16 | 2017-03-08 | 福建福光股份有限公司 | 38 times of super large zoom ratio Size Zoom TV camera lens |
| CN207020388U (en) * | 2017-05-10 | 2018-02-16 | 福建福光天瞳光学有限公司 | Electromotion focusing formula uncooled ir is dolly-out,ed dolly-back type camera lens |
-
2017
- 2017-05-10 CN CN201710323910.7A patent/CN106990513B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5827109A (en) * | 1981-08-10 | 1983-02-17 | Olympus Optical Co Ltd | Distance controller for camera |
| CN106094174A (en) * | 2016-08-26 | 2016-11-09 | 福建福光天瞳光学有限公司 | Far infrared long wave dolly-out,s dolly-back high mist transmitting without transconversion into heat camera lens and preparation method thereof |
| CN106094182A (en) * | 2016-08-26 | 2016-11-09 | 福建福光股份有限公司 | Folded form strong Penetrating Fog high definition zooming camera lens |
| CN106443991A (en) * | 2016-12-16 | 2017-02-22 | 福建福光天瞳光学有限公司 | Long shot type long wave infrared motorized zoom lens and operating method thereof |
| CN106483644A (en) * | 2016-12-16 | 2017-03-08 | 福建福光股份有限公司 | 38 times of super large zoom ratio Size Zoom TV camera lens |
| CN207020388U (en) * | 2017-05-10 | 2018-02-16 | 福建福光天瞳光学有限公司 | Electromotion focusing formula uncooled ir is dolly-out,ed dolly-back type camera lens |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107390349A (en) * | 2017-08-30 | 2017-11-24 | 福建福光股份有限公司 | A kind of long wave refrigeration mode is without thermalization camera lens |
| CN107390349B (en) * | 2017-08-30 | 2020-05-19 | 福建福光股份有限公司 | Long-wave refrigeration type athermalization lens |
| CN107479174A (en) * | 2017-09-02 | 2017-12-15 | 福建福光股份有限公司 | A kind of LONG WAVE INFRARED optical system |
| CN107505685A (en) * | 2017-09-29 | 2017-12-22 | 福建福光天瞳光学有限公司 | Electromotion focusing LONG WAVE INFRARED camera lens and its method of work |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106990513B (en) | 2022-10-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106125276B (en) | Object lens of large relative aperture, large area array long-wave infrared continuous zoom lens and working method | |
| CN107238916B (en) | High-definition continuous zoom lens with large zoom ratio and long focal length | |
| CN106990513A (en) | Electromotion focusing formula uncooled ir is dolly-out,ed dolly-back type camera lens and its method of work | |
| CN102253472B (en) | Zooming camera lens matched with 3CCD (Charge-Coupled Device) camera | |
| CN106932891A (en) | 25 ~ 75mm long-wave infrared continuous zoom lens and its method of work | |
| CN101825763A (en) | High resolution day and night multipoint zoom lens | |
| CN106443991B (en) | A kind of long drive type LONG WAVE INFRARED motorized zoom lens and its working method | |
| CN106094184A (en) | Miniaturization big zoom ratio digital-code far-sighting camera lens and method of work thereof | |
| CN106125271A (en) | Zoom short-throw projection camera lens and Zooming method thereof | |
| CN109324391B (en) | Wide-spectrum achromatic laser detection lens with ultra-long focal length and working method thereof | |
| CN207020388U (en) | Electromotion focusing formula uncooled ir is dolly-out,ed dolly-back type camera lens | |
| CN106842485A (en) | The electronic whole group focusing type non-brake method camera lens of three-chip type far infrared | |
| CN108132527B (en) | Optical system with optimized low-light effect | |
| CN202171676U (en) | Zoom pick-up lens adaptive to 3CCD camera | |
| CN204832645U (en) | Visible light formation of image and laser rangefinder common optical axis camera lens | |
| CN107589535B (en) | The low big multiplying power long-focus high definition zoom lens of distortion | |
| CN206848549U (en) | The electronic whole group focusing type non-brake method optical system of three-chip type far infrared and its lens construction | |
| CN106597649B (en) | The strong Penetrating Fog telephotography zoom lens of high-resolution | |
| CN102902045B (en) | Pick-up lens for high-resolution single group movement industry | |
| CN102289060B (en) | High-resolution zoom lens for intelligent transportation system | |
| CN207216114U (en) | Electromotion focusing LONG WAVE INFRARED camera lens | |
| CN206450890U (en) | High magnification Zoom optic lens | |
| CN206710692U (en) | 25 ~ 75mm long-wave infrared continuous zoom lens | |
| CN203930188U (en) | Compact super large image planes continuous magnification lens | |
| CN202794681U (en) | High-resolution motor-driven diaphragm pick-up lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |