CN206532014U - Super long sight distance anti-dazzle disturbs LONG WAVE INFRARED optics without thermalization optical system and its on-vehicle lens structure - Google Patents
Super long sight distance anti-dazzle disturbs LONG WAVE INFRARED optics without thermalization optical system and its on-vehicle lens structure Download PDFInfo
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- CN206532014U CN206532014U CN201621386284.3U CN201621386284U CN206532014U CN 206532014 U CN206532014 U CN 206532014U CN 201621386284 U CN201621386284 U CN 201621386284U CN 206532014 U CN206532014 U CN 206532014U
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- lens
- crescent
- dazzle
- thermalization
- wave infrared
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Abstract
The utility model is related to field of optical lens, more particularly to a kind of long sight distance anti-dazzle disturbs LONG WAVE INFRARED optics without thermalization optical system and its on-vehicle lens structure, including negative crescent lens A, positive crescent lens B and the biconvex lens C for setting gradually and being made respectively by Se60As40 or germanium from front to back along light incident direction, airspace between the negative crescent lens and positive crescent lens is 3.5mm, and the airspace between positive the crescent lens and biconvex lens is 0.15mm.The optical system and its on-vehicle lens are not only simple in structure, and with certain temperature adaptive ability.
Description
Technical field
The utility model is related to field of optical lens, more particularly to a kind of long sight distance anti-dazzle interference LONG WAVE INFRARED optics without
Thermalization optical system and its on-vehicle lens structure.
Background technology
Infrared lens have good in anti-interference performance；Night operating distance is remote；Penetrate flue dust, haze ability strong；Can it is round-the-clock,
Round-the-clock works；It is excellent with the observation of multiple target panorama, tracking and target identification ability and the stealthy ability of good anti-target etc.
Point.But the thermal refractive index coefficient of infrared lens material therefor is larger, under different environment temperatures, optical material and machinery
Material, which is produced, to expand with heat and contract with cold, and the refractive index of optical material can also change with temperature, and then make the optimal picture of optical system
Face is deviateed, and reduces quality of optical imaging so that image blurring unclear, and contrast declines, the imaging of final influence camera lens
Performance.
The content of the invention
For kimonos drawbacks described above, the present invention provides a kind of long sight distance anti-dazzle with certain temperature adaptive ability and done
LONG WAVE INFRARED optics is disturbed without thermalization optical system and its on-vehicle lens structure.
The technical solution of the utility model is：A kind of super long sight distance anti-dazzle disturbs LONG WAVE INFRARED optics without thermalization optics
System, including the negative crescent for setting gradually and being made respectively by Se60As40 or germanium from front to back along light incident direction
Lens, positive crescent lens and biconvex lens, the airspace between the negative crescent lens and positive crescent lens is
3.5mm, the airspace between positive the crescent lens and biconvex lens is 0.15mm.
Further, in the negative crescent lens, positive crescent lens and biconvex lens at least one lens by
Se60As40 is made and at least one lens is made by germanium.
A kind of super long sight distance anti-dazzle disturbs LONG WAVE INFRARED optics without thermalization on-vehicle lens structure, including body tube and setting
In the optical system in body tube, the optical system includes the negative crescent set gradually from front to back along light incident direction
Lens, positive crescent lens and biconvex lens, the rear end of the body tube are provided with for being pressed on biconvex lens trailing flank
The rear trim ring in all portions.
Further, the airspace between the negative crescent lens and positive crescent lens is 3.5mm, the first month of the lunar year
Airspace between thread form lens and biconvex lens is 0.15mm.
Further, be provided with the body tube positioned at it is negative between crescent lens and positive crescent lens first every
Circle, the second spacer ring is provided between positive the crescent lens and biconvex lens.
Further, the rear end of the body tube is provided with internal thread, and the rear trim ring is fastened in master through internal thread rotation
On the inside of lens barrel.
Further, the negative crescent lens, positive crescent lens and biconvex lens are made by Se60As40 or germanium
Form.
Further, the inner chamber of the body tube is disposed with internal diameter and gradually increased and to applied to installation from front to back
Three end differences of negative crescent lens, positive crescent lens and biconvex lens, the leading inside of the body tube is also set up
There is the annular flange for being connected to portion of negative crescent lens leading flank week.
Compared with prior art, the present invention has advantages below：The anti-dazzle light ability and night recognition capability of the camera lens
Drive safety is greatly improved, with the fast development of infrared imagery technique, infrared lens have extensively in domains such as safety monitoring necks
General application.The camera lens carries out aberration correction and balance to 8~12 μm of wide spectral range simultaneously, makes camera lens in wide spectral range
All there is excellent picture matter, realize that wide spectrum is confocal, such camera lens can blur-free imaging in middle long wave limit；Eyeglass is using high
Refraction, the optical glass material of low dispersion, correct the various aberrations of optical lens, camera lens is realized high-resolution, big relative
The advantages of aperture, low distortion, and by the characteristic of different optical materials, realize in the case of different temperatures by not equality of temperature folding
Become the imaging performance that material adaptively adjusts optical system, realize optics without thermalization.Distortion is smaller, below 1%, relative to old
Structural aberration have more preferable control；Both ensured in structure camera lens concentricity, precision and axial location it is accurate, again
Make the portable construction, attractive in appearance of camera lens.
Brief description of the drawings
Fig. 1 is the structural representation of optical system of the present utility model；
Fig. 2 is the structural representation of camera lens of the present utility model；
In figure：In figure：A- bears after crescent moon lens B- planoconvex spotlight C- biconvex lens the first spacer rings of 1- 2- trim ring 3- the
Two spacer ring 4- body tube 41- annular flange 42- external screw thread 43- end differences.
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 and Fig. 2
A kind of super long sight distance anti-dazzle disturbs LONG WAVE INFRARED optics without thermalization optical system, including along light incident direction certainly
The negative crescent lens A, the positive crescent lens B that set gradually and be made respectively by Se60As40 or germanium after forward direction and double
Convex lens C, the airspace between the negative crescent lens and positive crescent lens is 3.5mm, the positive crescent lens
Airspace between biconvex lens is 0.15mm.
In the present embodiment, at least one lens in the negative crescent lens, positive crescent lens and biconvex lens
It is made up of Se60As40 and at least one lens is made by germanium.
In the present embodiment, compensation adjustment comprises the following steps：
（1）Temperature change causes eyeglass R values to change, and focal plane shifts；
（2）Eyeglass A, B, C refractive index of different materials there occurs different changes, adaptive equalization R at different temperatures
Offset caused by value changes.
In the present embodiment, the optical system being made up of above-mentioned lens set has reached following optical index：
1) focal length：f′=10mm；
2) relative aperture F：1.0；
3) angle of visual field：2w≥44°；
4) resolution ratio：It can be adapted to 17 μm of detector video cameras of 384*288；
5) total length of light path ∑≤14mm, optics rear cut-off distance l ' >=6mm；
It is applicable spectral line scope：8μm~12μm.
In the present embodiment, table 1 below mean curvature radius refers to the radius of curvature on each surface, and spacing refers to adjacent two surface
Between distance, for example, surface S1 spacing, that is, refer to the distance between surface S1 and surface S2, S6 spacing represents surface S6
To the distance of imaging surface.Wherein, S1 represents the radius of curvature of negative crescent lens leading flank, and S2 is represented on rear side of negative crescent lens
The radius of curvature in face, S3 represents the radius of curvature of positive crescent lens leading flank, and S4 represents the song of positive crescent lens trailing flank
Rate radius, S5 represents the radius of curvature of biconvex lens leading flank, and S6 represents the radius of curvature of biconvex lens trailing flank.S6 spacing
Represent surface S6 to the distance of imaging surface.Lens parameters table such as table 1 below,
Table 1.
Aspheric mask body face type equation is as follows：
,
Z be it is aspherical along optical axis direction height be r position when, away from aspheric vertex of surface apart from rise, R represents minute surface
Paraxial radius of curvature；K is circular cone coefficient；A, B, C, D are high order aspheric surface coefficient；
Wherein S3：c=1/R,R=9,k=0,A=-1.625E-005,B=6.431E-0.09,C=-2.0146E-010,D=
3.5012E-013；
Wherein S5：c=1/R,R=44.5,k=0,A=-1.625E-005,B=6.431E-0.09,C=-2.0146E-010,D=
3.5012E-013。
With reference to Fig. 1 and Fig. 2 and table 1
A kind of super long sight distance anti-dazzle interference LONG WAVE INFRARED optics is without thermalization on-vehicle lens structure, including body tube 2 and sets
The optical system being placed in body tube, the optical system includes the negative crescent moon set gradually from front to back along light incident direction
Shape lens A, positive crescent lens B and biconvex lens C, the rear end of the body tube are provided with for being pressed on after biconvex lens
The rear trim ring 2 in side week portion.
In the present embodiment, airspace between the negative crescent lens and positive crescent lens is 3.5mm, it is described just
Airspace between crescent lens and biconvex lens is 0.15mm.
In the present embodiment, first for being located at and bearing between crescent lens and positive crescent lens is provided with the body tube
Spacer ring 1, the second spacer ring 3 is provided between positive the crescent lens and biconvex lens.
In the present embodiment, the rear end of the body tube is provided with internal thread, and the rear trim ring is fastened through internal thread rotation
On the inside of body tube.
In the present embodiment, the negative crescent lens, positive crescent lens and biconvex lens are by Se60As40 or germanium system
Form.
In the present embodiment, the inner chamber of the body tube is disposed with internal diameter and gradually increased and to applied to peace from front to back
Three end differences 43 of the negative crescent lens of dress, positive crescent lens and biconvex lens, the leading inside of the body tube is also
It is provided with the annular flange 41 for being connected to portion of negative crescent lens leading flank week.
In the present embodiment, the rearward end of the body tube is additionally provided with external screw thread 42, so as to the screw thread with M18X0.75-6g
Tooth and video camera coordinate.
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 (8)
1. a kind of super long sight distance anti-dazzle disturbs LONG WAVE INFRARED optics without thermalization optical system, it is characterised in that including along light
Negative crescent lens that incident direction sets gradually and is made respectively by Se60As40 or germanium from front to back, positive crescent are saturating
Mirror and biconvex lens, the airspace between the negative crescent lens and positive crescent lens are 3.5mm, the positive crescent moon
Airspace between shape lens and biconvex lens is 0.15mm.
2. super long sight distance anti-dazzle according to claim 1 disturbs LONG WAVE INFRARED optics without thermalization optical system, its feature
It is, at least one lens is made up of Se60As40 in the negative crescent lens, positive crescent lens and biconvex lens
And at least one lens is made by germanium.
3. a kind of super long sight distance anti-dazzle interference LONG WAVE INFRARED optics is without thermalization on-vehicle lens structure, including body tube and it is arranged at
Optical system in body tube, it is characterised in that the optical system includes setting gradually from front to back along light incident direction
Negative crescent lens, positive crescent lens and biconvex lens, the rear end of the body tube is provided with for being pressed on biconvex
Lens trailing flank week portion rear trim ring.
4. super long sight distance anti-dazzle interference LONG WAVE INFRARED optics according to claim 3 is without thermalization on-vehicle lens structure, its
It is characterised by, the airspace between the negative crescent lens and positive crescent lens is 3.5mm, the positive crescent lens
Airspace between biconvex lens is 0.15mm.
5. the super long sight distance anti-dazzle according to claim 3 or 4 disturbs LONG WAVE INFRARED optics without thermalization on-vehicle lens structure,
Characterized in that, being provided with the body tube positioned at negative the first spacer ring between crescent lens and positive crescent lens, institute
State and be provided with the second spacer ring between positive crescent lens and biconvex lens.
6. super long sight distance anti-dazzle interference LONG WAVE INFRARED optics according to claim 3 is without thermalization on-vehicle lens structure, its
It is characterised by, the rear end of the body tube is provided with internal thread, and the rear trim ring is fastened on the inside of body tube through internal thread rotation.
7. the super long sight distance anti-dazzle according to claim 3,4 or 6 disturbs LONG WAVE INFRARED optics without thermalization on-vehicle lens knot
Structure, it is characterised in that the negative crescent lens, positive crescent lens and biconvex lens made by Se60As40 or germanium and
Into.
8. super long sight distance anti-dazzle interference LONG WAVE INFRARED optics according to claim 3 is without thermalization on-vehicle lens structure, its
It is characterised by, the inner chamber of the body tube is disposed with internal diameter and gradually increased and to applied to the negative crescent of installation from front to back
Three end differences of lens, positive crescent lens and biconvex lens, the leading inside of the body tube is additionally provided with for supporting
It is connected on the annular flange in portion of negative crescent lens leading flank week.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621386284.3U CN206532014U (en) | 2016-12-16 | 2016-12-16 | Super long sight distance anti-dazzle disturbs LONG WAVE INFRARED optics without thermalization optical system and its on-vehicle lens structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621386284.3U CN206532014U (en) | 2016-12-16 | 2016-12-16 | Super long sight distance anti-dazzle disturbs LONG WAVE INFRARED optics without thermalization optical system and its on-vehicle lens structure |
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| CN206532014U true CN206532014U (en) | 2017-09-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443943A (en) * | 2016-12-16 | 2017-02-22 | 福建福光天瞳光学有限公司 | Super-distant-vision glare-interference-prevention long-wave infrared optical athermalized automotive lens |
-
2016
- 2016-12-16 CN CN201621386284.3U patent/CN206532014U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443943A (en) * | 2016-12-16 | 2017-02-22 | 福建福光天瞳光学有限公司 | Super-distant-vision glare-interference-prevention long-wave infrared optical athermalized automotive lens |
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