CN106526812A - Light and adjustable infrared vehicle-mounted wide-angle lens and working method thereof - Google Patents
Light and adjustable infrared vehicle-mounted wide-angle lens and working method thereof Download PDFInfo
- Publication number
- CN106526812A CN106526812A CN201611168120.8A CN201611168120A CN106526812A CN 106526812 A CN106526812 A CN 106526812A CN 201611168120 A CN201611168120 A CN 201611168120A CN 106526812 A CN106526812 A CN 106526812A
- Authority
- CN
- China
- Prior art keywords
- lens
- crescent moon
- vehicle mounted
- adjustable infrared
- body tube
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 33
- 238000013461 design Methods 0.000 claims description 7
- 238000009738 saturating Methods 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 10
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 230000005499 meniscus Effects 0.000 abstract 5
- 238000001816 cooling Methods 0.000 abstract 1
- 238000002834 transmittance Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 238000012634 optical imaging Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/14—Optical objectives specially designed for the purposes specified below for use with infrared or ultraviolet radiation
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/026—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using retaining rings or springs
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
The invention relates to a light and adjustable infrared vehicle-mounted wide-angle lens, which comprises a negative meniscus lens A, a positive meniscus lens B and a double-convex lens C, wherein the three lenses are successively arranged from left to right in the incident direction of light rays. The air space between the negative meniscus lens A and the positive meniscus lens B is 14 mm. The air space between the positive meniscus lens B and the double-convex lens C is 7 mm. The invention also relates to a working method of the light and adjustable infrared vehicle-mounted wide-angle lens. The advantages of compact structure, high transmittance and the like are realized. During the optically designing process, the focal power is reasonably distributed and the temperature-adaptive optical athermalization is realized. The wide-angle lens can be matched with a long-wave infrared non-cooling type 320*240 and 20 mum detector to execute recording and security monitoring tasks.
Description
Technical field
The present invention relates to a kind of adjustable infrared vehicle mounted wide-angle mirror head of legerity type and its method of work.
Background technology
As the continuous progress of science and technology, infrared optical system application are more and more extensive, vehicle mounted infrared camera lens is also more next
More paid attention to.Look farther can driver in night vehicle mounted infrared camera lens, and be avoided that because the dazzling car of opposite vehicle
Lamp and caused temporary vision dead zone, more superior is no matter driver still has in dense smoke, dust and dense fog, sleety weather
Good vision.Infrared lens have good in anti-interference performance；Night operating distance is remote；Penetrate flue dust, haze ability strong；Can whole day
Wait, round-the-clock works；With the observation of multiple target panorama, follow the trail of and target identification ability and the good ability of anti-target stealth etc.
Advantage.The haze-penetrating capability and night recognition capability of this money on-vehicle lens greatly improves drive safety, with infrared imagery technique
Fast development, infrared lens have a wide range of applications in domains such as safety monitoring necks.
But the thermal refractive index coefficient of infrared lens material therefor is larger, under different environment temperatures, optical material
Produce with mechanical material and expand with heat and contract with cold, the refractive index of optical material also can change with temperature, and then make optical system
Optimum image plane occurs to deviate, and reduces quality of optical imaging so that image blurring unclear, and contrast declines, and finally affects camera lens
Imaging performance.Therefore, in order to adapt to varying environment temperature, it is desirable to which infrared lens have certain temperature self-adaptation ability.
The content of the invention
In view of the deficiencies in the prior art, it is adjustable red that the technical problem to be solved is to provide a kind of legerity type
Outer vehicle mounted wide-angle mirror head and its method of work, not only reasonable in design, and also it is efficiently convenient.
In order to solve above-mentioned technical problem, the technical scheme is that：A kind of legerity type is adjustable infrared vehicle-mounted wide
Angle mirror head, including along light incident direction sets gradually from left to right negative crescent moon lens A, positive crescent moon lens B and lenticular
Mirror C.
Preferably, the airspace between the negative crescent moon lens A and positive crescent moon lens B is 14mm, and the positive crescent moon is saturating
Airspace between mirror B and biconvex lens C is 7mm.
Preferably, the negative crescent moon lens A enters body tube from the front group of body tube, and is fixed with front trim ring.
Preferably, from the rear end of body tube, group enters body tube to the positive crescent moon lens B in order with biconvex lens C, institute
State, and be fixed with rear trim ring.
Preferably, the body tube Jing screw threads are connected with connecting seat, and on the body tube, design fluting limits focusing range,
And garland process is made in the body tube front end.
Preferably, the screw thread to be engaged with video camera is provided with the connecting seat.
Preferably, the method for work of the adjustable infrared vehicle mounted wide-angle mirror of a kind of legerity type, including it is described above any
A kind of adjustable infrared vehicle mounted wide-angle mirror of legerity type, comprises the steps of：Light order enters negative crescent moon lens A, positive crescent moon
Lens B and biconvex lens C are imaged.
Compared with prior art, the invention has the advantages that：
（1）Simple structure, small volume, the uncooled ir optical system for being adapted to miniaturization are used；
（2）With high imaging resolution；
（3）Compact conformation, cost of manufacture are cheap, and overall weight is light, suitable for scale production and install and use；
（4）On the premise of compact conformation is ensured, adopt a series of measures, improve camera lens vibration resistance, the ability of impact；
（5）Body tube adopts integrated design, with good sealing property, can carry out rigidity in lens construction design
Calculate, suitably increase wall thickness, improve intrinsic frequency, improve the vibration resistance of camera lens, enter the structure design side of eyeglass from two ends group
Just install, it is ensured that the use requirement of system, it is ensured that the sealing property of camera lens；
（6）The main security for passing through detection range and detection angle raising driving, infrared lens detection range are big before automobile
More than 4 times of lamp, look farther, and detection angle is wide, and the angle of view reaches 110 °, and cleaning is dead
Angle problem.
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
Description of the drawings
Optical system schematic diagrames of the Fig. 1 for the embodiment of the present invention.
Optical lens structural representations of the Fig. 2 for the embodiment of the present invention.
In figure：The negative crescent moon lens A of A-, the positive crescent moon lens B of B-, C- biconvex lens C, 1- body tubes, trim ring before 2-, 3-BC every
Circle, trim ring after 4-, 5- connecting seats, 6- locking nails.
Specific embodiment
It is that 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, the adjustable infrared vehicle mounted wide-angle mirror head of a kind of legerity type, including incident from left to right along light
Negative crescent moon lens A, positive crescent moon lens B and biconvex lens C that direction sets gradually.
In embodiments of the present invention, the airspace between the negative crescent moon lens A and positive crescent moon lens B be 14mm, institute
It is 7mm to state the airspace between positive crescent moon lens B and biconvex lens C.
In embodiments of the present invention, the negative crescent moon lens A enters body tube 1 from the front group of body tube 1, and uses front trim ring
2 are fixed.
In embodiments of the present invention, the positive crescent moon lens B and biconvex lens C are from the rear end of body tube 1 group in order
Enter body tube 1, separated with BC spacer rings 3 between the positive crescent moon lens B and biconvex lens C, and be fixed with rear trim ring 4.
In embodiments of the present invention, 1 Jing screw threads of the body tube are connected with connecting seat 5, and lens construction is mainly by body tube 1
Constitute with connecting seat 5, it is simple and compact for structure, it is lightweight；On the body tube 1, design fluting limits focusing range；The connection
Locking nail 6 is provided with seat 5, be locked after the completion of focusing body tube 1 and the relative position of connecting seat 5, it is ensured that imaging clearly,
It is stable；And garland process is made in 1 front end of body tube, increase frictional force, it is burnt after convenient regulation manually.
In embodiments of the present invention, the connecting seat 5 is provided with the screw thread to be engaged with video camera, the screw thread
Ridge is M34X0.75-6g.
In embodiments of the present invention, screwed hole is devised on the connecting seat 5, for the fixation after focusing, it is to avoid loosen
Cause the skew of focal plane.
In embodiments of the present invention, Thermal property differences of the camera lens using optical material, by the collocation of different thermal conductive materials
The impact for combining to eliminate temperature, keeps image planes and stablizing as matter in the range of -20 ° ~ 60 °.
In embodiments of the present invention, the method for work of the adjustable infrared vehicle mounted wide-angle mirror of a kind of legerity type, including it is above-mentioned
The adjustable infrared vehicle mounted wide-angle mirror of any one described legerity type, comprises the steps of：It is saturating that light order enters negative crescent moon
Mirror A, positive crescent moon lens B and biconvex lens C are imaged.
In embodiments of the present invention, the optical system being made up of above-mentioned lens set has reached following technical indicator：
Radius of curvature refers to the radius of curvature on each surface, and spacing is the spacing between adjacent two surface, illustrates, and S1, S2 are
It is surfaces of the negative crescent moon lens A away from crescent moon lens Bs positive with neighbouring couple respectively, during the spacing of S1 is referred between S1 and S2 surfaces
In the heart away from the rest may be inferred for other.
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 adjustable infrared vehicle mounted wide-angle mirror head of legerity type and its method of work of the form of kind.It is all to be done according to scope of the present invention patent
Impartial change with modification, should all belong to the present invention covering scope.
Claims (7)
1. the adjustable infrared vehicle mounted wide-angle mirror head of a kind of legerity type, it is characterised in that：Including along light incidence side from left to right
To the negative crescent moon lens A, positive crescent moon lens B and biconvex lens C that set gradually.
2. the adjustable infrared vehicle mounted wide-angle mirror head of legerity type according to claim 1, it is characterised in that：The negative crescent moon
Airspace between lens A and positive crescent moon lens B is 14mm, between the air between the positive crescent moon lens B and biconvex lens C
It is divided into 7mm.
3. the adjustable infrared vehicle mounted wide-angle mirror head of legerity type according to claim 1, it is characterised in that：The negative crescent moon
Lens A enters body tube from the front group of body tube, and is fixed with front trim ring.
4. the adjustable infrared vehicle mounted wide-angle mirror head of legerity type according to claim 1, it is characterised in that：The positive crescent moon
Group enters body tube in order from the rear end of body tube for lens B and biconvex lens C, the positive crescent moon lens B and biconvex lens C it
Between separated with BC spacer rings, and be fixed with rear trim ring.
5. the adjustable infrared vehicle mounted wide-angle mirror head of legerity type according to claim 1, it is characterised in that：The body tube
Jing screw threads are connected with connecting seat, and on the body tube, design fluting limits focusing range, and the body tube front end is made at garland
Reason.
6. the adjustable infrared vehicle mounted wide-angle mirror head of legerity type according to claim 5, it is characterised in that：The connecting seat
On be provided with screw thread to be engaged with video camera.
7. the method for work of the adjustable infrared vehicle mounted wide-angle mirror of a kind of legerity type, it is characterised in that include such as claim 1 ~ 6
The adjustable infrared vehicle mounted wide-angle mirror of any one described legerity type, comprises the steps of：It is saturating that light order enters negative crescent moon
Mirror A, positive crescent moon lens B and biconvex lens C are imaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611168120.8A CN106526812A (en) | 2016-12-16 | 2016-12-16 | Light and adjustable infrared vehicle-mounted wide-angle lens and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611168120.8A CN106526812A (en) | 2016-12-16 | 2016-12-16 | Light and adjustable infrared vehicle-mounted wide-angle lens and working method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106526812A true CN106526812A (en) | 2017-03-22 |
Family
ID=58340900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611168120.8A Pending CN106526812A (en) | 2016-12-16 | 2016-12-16 | Light and adjustable infrared vehicle-mounted wide-angle lens and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106526812A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106842485A (en) * | 2017-04-17 | 2017-06-13 | 福建福光天瞳光学有限公司 | The electronic whole group focusing type non-brake method camera lens of three-chip type far infrared |
| CN112255763A (en) * | 2020-10-16 | 2021-01-22 | 福建福光天瞳光学有限公司 | Compact infrared lens with F4.5mm structure and assembling method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201589887U (en) * | 2009-05-12 | 2010-09-22 | 叶明华 | Dual-purpose lens for both day and night use |
| CN203773127U (en) * | 2013-12-20 | 2014-08-13 | 河北汉光重工有限责任公司 | 60 mm non-refrigerating infrared lens |
| JP2016018162A (en) * | 2014-07-10 | 2016-02-01 | 株式会社タムロン | Far-infrared lens and far-infrared image capturing device |
| CN204462517U (en) * | 2015-03-13 | 2015-07-08 | 昆明全波红外科技有限公司 | A kind of three-chip type 150 degree of flake LONG WAVE INFRARED camera lenses |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106842485A (en) * | 2017-04-17 | 2017-06-13 | 福建福光天瞳光学有限公司 | The electronic whole group focusing type non-brake method camera lens of three-chip type far infrared |
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| CN112255763A (en) * | 2020-10-16 | 2021-01-22 | 福建福光天瞳光学有限公司 | Compact infrared lens with F4.5mm structure and assembling method thereof |
| CN112255763B (en) * | 2020-10-16 | 2025-03-18 | 福建福光天瞳光学有限公司 | F4.5mm compact infrared lens and its assembly method |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20170322 |