CN109633873A - Burnt infrared lens and its assembly method after a kind of long wavelength - Google Patents
Burnt infrared lens and its assembly method after a kind of long wavelength Download PDFInfo
- Publication number
- CN109633873A CN109633873A CN201910070090.4A CN201910070090A CN109633873A CN 109633873 A CN109633873 A CN 109633873A CN 201910070090 A CN201910070090 A CN 201910070090A CN 109633873 A CN109633873 A CN 109633873A
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- Prior art keywords
- lens
- positive lens
- body tube
- positive
- negative
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Links
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000003825 pressing Methods 0.000 claims description 13
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000002834 transmittance Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009510 drug design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012634 optical imaging Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003466 welding Methods 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
- G02B13/14—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
- 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
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Lenses (AREA)
Abstract
The present invention provides burnt infrared lens and its assembly method after a kind of long wavelength, including lens barrel, along light, incident direction is disposed with positive lens A, negative lens B and positive lens C from left to right in the lens barrel, the airspace of the positive lens A and negative lens B is that the airspace of 18.34mm, the negative lens B and positive lens C are 13.12mm.Structure of the invention is compact, easy to carry, and light transmittance is high, and focusing range is wide, and cost of manufacture is cheap, has practicability.
Description
Technical field
The present invention relates to infrared lens burnt after a kind of long wavelength and its assembly methods.
Background technique
With the development of science and technology, infrared imagery technique has been widely used in fields such as national defence, industry, medical treatment.It is infrared
Detecting has certain ability for penetrating the abilities such as cigarette, mist, haze, snow and identification camouflage, not by the strong light in battlefield, flash of light interference and
Blinding, may be implemented remote, round-the-clock observation, the target acquisition being particularly suitable under night and bad-weather condition, wherein
Temperature can impact the refractive index of optical material also can cause to expand with heat and contract with cold to lens barrel material, cause power variation and most
Good image planes shift.Quality of optical imaging is reduced, image is smudgy, contrast decline, the final imaging for influencing camera lens
Energy.
Summary of the invention
The present invention improves the above problem, i.e., the technical problem to be solved in the present invention is to provide after a kind of long wavelength
Burnt infrared lens and its assembly method, structure is simple and imaging performance is high.
Specific embodiments of the present invention are: a kind of lightweight continuous magnification lens, including lens barrel are provided, in the lens barrel
Along light, incident direction is disposed with positive lens A, negative lens B and positive lens C, the positive lens A and negative lens B from left to right
Airspace be the airspace of 18.34mm, the negative lens B and positive lens C be 13.12mm.
Further, the lens barrel includes body tube, and the body tube outside portion is equipped with adjusts for the first of mobile focusing
Burnt cam and the second focusing cam, the positive lens A, negative lens B and positive lens C are mounted on body tube inner wall.
Further, be arranged with A piece pressing ring positive lens A being fixed on body tube on front side of the positive lens A, it is described negative
It is arranged with the B piece pressing ring being fixed on positive lens B on body tube on front side of lens B, is also set between the negative lens B and positive lens C
There is BC spacer ring.
Further, rosette is installed on first focusing cam.
Further, the primary mirror tube rear end is fixedly connected with the attachment base for connecting detector.
Further, a kind of assembly method using lightweight zoom lens as claimed in claim 5, including step is such as
Under: (1) first first focusing cam and second focusing cam is installed in body tube outside portion；(2) rosette is assembled first
On focusing cam；(3) attachment base for connecting detector is installed in primary mirror tube rear end；(4) again by positive lens C, BC spacer ring, negative
Lens B is in order successively from being entered by body tube front group and passed through and fixed with B piece pressing ring；(5) finally by positive lens A from primary mirror
Cylinder front group enters and passes through A piece pressing ring to be fixed.
Compared with prior art, applied widely the invention has the following advantages: the present apparatus is compact-sized, structure
It is compact, lens construction length is short, easy to carry, high transparency, low manufacture cost, have practicability.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the embodiment of the present invention one；
Fig. 2 is structural schematic diagram of the embodiment of the present invention two.
In figure: the first focusing cam of 1-, 2- body tube, 3- rosette, the second focusing cam of 4-, 5- attachment base, 6-A piece pressure
Circle, 7- positive lens A, 8-B piece pressing ring, 9- negative lens B, 10-BC spacer ring, 11- positive lens C.
Specific embodiment
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
Embodiment: as shown in Figure 1 and 2, in the present embodiment, a kind of lightweight continuous magnification lens, including lens barrel, institute are provided
State in lens barrel that incident direction is disposed with positive lens A7, negative lens B and positive lens C11 from left to right along light, it is described just thoroughly
The airspace of mirror A7 and negative lens B9 is that the airspace of 18.34mm, the negative lens B9 and positive lens C11 are 13.12mm.
In the present embodiment, the lens barrel includes body tube 2, and 2 outside portion of body tube is equipped with for mobile focusing
One focusing cam 1 and the second focusing cam 4, the positive lens A, negative lens B and positive lens C are mounted on 2 inner wall of body tube.
In the present embodiment, be arranged with the A piece pressing ring 6 positive lens A7 being fixed on body tube 2 on front side of the positive lens A7,
On front side of the negative lens B9 be arranged with the B piece pressing ring 8 positive lens B9 being fixed on body tube, the negative lens B9 and positive lens
BC spacer ring 10 is additionally provided between C11.
In the present embodiment, rosette 3 is installed on first focusing cam 1.
In the present embodiment, 2 rear end of body tube is fixedly connected with the attachment base 5 for connecting detector.
In the present embodiment, the detector can use 640 × 512,17 μm of detectors of LWIR Uncooled, carry out real
Condition record and monitor task.
In the present embodiment, following optics has been reached by the optical texture that positive lens A7, negative lens B9 and positive lens C11 are constituted
Index:
Service band: 8 μm -12 μm；
Focal length: f '=50mm；
Detector: 640 × 512,17 μm of LWIR Uncooled type；
Field angle: 12.2 ° × 9.8 °；
Relative aperture D/ f ': 1/1.
In this embodiment, the positive lens A, negative lens B and positive lens C lens parameters are as follows:
In upper table, face serial number S1 is the mirror surface for seeing eyeglass from left to right, and face serial number S2 is the mirror surface from right eyeglass to the left.
In the present embodiment, when assembly, the first focusing cam and the second focusing cam are installed on the outside of body tube, while will be even
Joint chair is mounted on primary mirror tube rear end, then positive lens C, BC spacer ring, negative lens B are successively entered simultaneously from by body tube front group in order
It is fixed by and with B piece pressing ring, then enters and pass through A piece pressing ring to be fixed from body tube front group by positive lens A, it is such
Assemble sequence advantageously ensures that the air between positive lens A and negative lens B away from raising assembly yields.The present invention has rational design,
It is compact-sized, lens construction length it is short, easy to carry, light transmittance is high, and focusing range is wide, and manufacturing cost is low, has practical
Property.
Any technical solution disclosed in aforementioned present invention unless otherwise stated, if it discloses numberical range,
Disclosed numberical range is preferred numberical range, and any it should be appreciated by those skilled in the art preferred numberical ranges
The only obvious or representative numerical value of technical effect in many enforceable numerical value.It, can not since numerical value is more
Exhaustion, so the present invention just discloses technical solution of the component values to illustrate the present invention, also, the above-mentioned numerical value enumerated is not
The limitation to the invention protection scope should be constituted.
Meanwhile if aforementioned present invention discloses or relates to the components or structural member of connection fastened to each other, except another
There is statement outer, is fixedly connected it is to be understood that connection (such as using bolt or screw connection) can be removedly fixed, it can also
To understand are as follows: non-removable to be fixedly connected with (such as riveting, welding), certainly, connection fastened to each other or integral type knot
Structure (such as manufacturing using casting technique is integrally formed) is replaced (obviously can not be using except integrally formed technique).
If the words such as " first ", " second " are used herein come if limiting components, those skilled in the art are answered
This knows: the use of " first ", " second " is intended merely to facilitate in description and is distinguished components as not having Stated otherwise
Outside, above-mentioned word has no special meaning.
In addition, for indicating the art of positional relationship or shape applied in any technical solution disclosed in aforementioned present invention
Its meaning includes approximate with its, similar or close state or shape to language unless otherwise stated.
Either component provided by the invention by multiple individual component parts either assembled, or one
The separate part that forming technology manufactures.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, it should be understood by those ordinary skilled in the art that: still
It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced；Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (6)
1. a kind of lightweight continuous magnification lens, which is characterized in that incident from left to right along light in the lens barrel including lens barrel
Direction is disposed with positive lens A, negative lens B and positive lens C, the airspace of the positive lens A and negative lens B are
The airspace of 18.34mm, the negative lens B and positive lens C are 13.12mm.
2. a kind of lightweight zoom lens according to claim 1, which is characterized in that the lens barrel includes body tube, institute
Body tube outside portion is stated to be equipped with for mobile the first focusing cam and the second focusing cam focused, the positive lens A, negative lens
B and positive lens C are mounted on body tube inner wall.
3. a kind of lightweight zoom lens according to claim 2, which is characterized in that be arranged on front side of the positive lens A
Positive lens A is fixed on the A piece pressing ring on body tube, is arranged on front side of the negative lens B and positive lens B is fixed on body tube
B piece pressing ring, be additionally provided with BC spacer ring between the negative lens B and positive lens C.
4. according to a kind of any lightweight zoom lens of claim 3, which is characterized in that on first focusing cam
It is installed with rosette.
5. according to a kind of any lightweight zoom lens of claim 4, which is characterized in that the primary mirror tube rear end is fixed
It is connected with the attachment base for connecting detector.
6. a kind of assembly method using lightweight zoom lens as claimed in claim 5, which is characterized in that such as including step
Under: (1) first first focusing cam and second focusing cam is installed in body tube outside portion；(2) rosette is assembled first
On focusing cam；(3) attachment base for connecting detector is installed in primary mirror tube rear end；(4) again by positive lens C, BC spacer ring, negative
Lens B is in order successively from being entered by body tube front group and passed through and fixed with B piece pressing ring；(5) finally by positive lens A from primary mirror
Cylinder front group enters and passes through A piece pressing ring to be fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910070090.4A CN109633873A (en) | 2019-01-24 | 2019-01-24 | Burnt infrared lens and its assembly method after a kind of long wavelength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910070090.4A CN109633873A (en) | 2019-01-24 | 2019-01-24 | Burnt infrared lens and its assembly method after a kind of long wavelength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109633873A true CN109633873A (en) | 2019-04-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910070090.4A Pending CN109633873A (en) | 2019-01-24 | 2019-01-24 | Burnt infrared lens and its assembly method after a kind of long wavelength |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109633873A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975967A (en) * | 2019-04-18 | 2019-07-05 | 福建福光天瞳光学有限公司 | Compact lightweight type 70mm focusing motor-driven lens structure and assembly method |
| CN110208920A (en) * | 2019-06-12 | 2019-09-06 | 福建福光天瞳光学有限公司 | A kind of long wave machinery is focused infrared lens and its assembly method without thermalization |
| CN110398812A (en) * | 2019-08-14 | 2019-11-01 | 福建福光天瞳光学有限公司 | One kind hand-held look in the distance formula camera lens and its assembly method |
| CN110412712A (en) * | 2019-08-14 | 2019-11-05 | 福建福光天瞳光学有限公司 | A kind of long wave focusing waterproof infrared lens and its working method |
| CN111999842A (en) * | 2020-08-30 | 2020-11-27 | 福建福光天瞳光学有限公司 | f35mm mechanical passive athermalization lens and assembling method thereof |
-
2019
- 2019-01-24 CN CN201910070090.4A patent/CN109633873A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975967A (en) * | 2019-04-18 | 2019-07-05 | 福建福光天瞳光学有限公司 | Compact lightweight type 70mm focusing motor-driven lens structure and assembly method |
| CN110208920A (en) * | 2019-06-12 | 2019-09-06 | 福建福光天瞳光学有限公司 | A kind of long wave machinery is focused infrared lens and its assembly method without thermalization |
| CN110208920B (en) * | 2019-06-12 | 2023-08-15 | 福建福光天瞳光学有限公司 | Long-wave mechanical athermalization focusing infrared lens and assembly method thereof |
| CN110398812A (en) * | 2019-08-14 | 2019-11-01 | 福建福光天瞳光学有限公司 | One kind hand-held look in the distance formula camera lens and its assembly method |
| CN110412712A (en) * | 2019-08-14 | 2019-11-05 | 福建福光天瞳光学有限公司 | A kind of long wave focusing waterproof infrared lens and its working method |
| CN111999842A (en) * | 2020-08-30 | 2020-11-27 | 福建福光天瞳光学有限公司 | f35mm mechanical passive athermalization lens and assembling method thereof |
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