CN106405797A - Economical high-light-flux and high-resolution prime lens - Google Patents
Economical high-light-flux and high-resolution prime lens Download PDFInfo
- Publication number
- CN106405797A CN106405797A CN201611052610.1A CN201611052610A CN106405797A CN 106405797 A CN106405797 A CN 106405797A CN 201611052610 A CN201611052610 A CN 201611052610A CN 106405797 A CN106405797 A CN 106405797A
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- China
- Prior art keywords
- lens
- plus lens
- plano
- crescent moon
- body tube
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
-
- 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
- G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
- Structure And Mechanism Of Cameras (AREA)
Abstract
The invention relates to an economical high-light-flux and high-resolution prime lens. An optical system of the prime lens comprises a plane-convex positive lens A, a crescent positive lens B, a plane-concave negative lens C and a crescent positive lens D sequentially from left to right along the incident direction of light. A mechanical structure of the prime lens comprises a main lens cone. The plane-convex positive lens A, the crescent positive lens B and the plane-concave negative lens C are installed at the inner front end of the main lens cone, and the crescent positive lens D is installed at the inner rear end of the main lens cone. The wall of the main lens cone at the outer rear end is provided with a connecting external thread. The optical system of the economical high-light-flux and high-resolution prime lens has a simple structure, and the lens is compact in structure assembly, light, small and easy to carry.
Description
Technical field
The present invention relates to a kind of economical big thang-kng amount high-resolution tight shot.
Background technology
With the development of engineering technology, various tight shots emerge in an endless stream, in order to be applied to specific demand, their valency
Lattice are different, different properties.Therefore, optical design is required for doing an optimal balance between Cost And Performance.Traditional mirror
Head, in order to meet big thang-kng amount, it usually needs more eyeglasses, and cost is also higher, and structure is also more complicated, the assembling knot of camera lens
Structure is longer, and volume is very much not convenient for carrying.
Content of the invention
The purpose of the present invention is for above weak point, there is provided a kind of economical big thang-kng amount high-resolution focuses mirror
Head, is not only simple in structure, and Portable high-efficiency.
The technical scheme is that, a kind of economical big thang-kng amount high-resolution tight shot, the optics of described camera lens
In system, along light, incident direction is sequentially provided with plano-convex plus lens A, crescent moon plus lens B, plano-concave minus lenses C and crescent moon from left to right
Plus lens D, the frame for movement of described camera lens includes body tube, described plano-convex plus lens A, crescent moon plus lens B, plano-concave minus lenses C
It is arranged on the Inner Front End of body tube, described crescent moon plus lens D is arranged on the interior rear end of body tube, the outer rear end cylinder of described body tube
Connection external screw thread is provided with wall.
Further, the center air between described plano-convex plus lens A and crescent moon plus lens B is spaced apart 0.328mm, described
The edge airspace of crescent moon plus lens B and plano-concave minus lenses C is 0.206mm, described plano-concave minus lenses C and crescent moon plus lens D
Between center air be spaced apart 25.406mm, the center air of described crescent moon plus lens D to image planes is spaced apart 7.789mm.
Further, the focal length of described camera lens is 50mm.
Further, described plano-convex plus lens A, crescent moon plus lens B, plano-concave minus lenses C and crescent moon plus lens D are all using high
Refractive index glass, its refractive index is all higher than 1.85.
Further, the frame for movement of described camera lens also includes connector, CCD, and described body tube is through connector with CCD even
Connect, described connector includes cylinder, the inner tube wall of described cylinder be provided with for spiral shell in the connection being connected external screw thread bolt
Stricture of vagina, the rearward end of described cylinder is provided with adpting flange, and described adpting flange is spirally connected with CCD through screw.
Further, it is provided with spacer ring one, described crescent moon plus lens between described plano-convex plus lens A and crescent moon plus lens B
It is provided with spacer ring two, the Inner Front End of described body tube is provided with for positioning plano-concave minus lenses C's between B and plano-concave minus lenses C
First step, the front end of the described plano-convex plus lens A front trim ring through being screwed into body tube is fixed.
Further, the interior rear end of described body tube is provided with the second step for positioning crescent moon plus lens D, the described moon
The rear end of tooth plus lens D is fixed through being screwed into trim ring after body tube.
Compared with prior art, the invention has the advantages that：This economical big thang-kng amount high-resolution focuses mirror
The optical system structure of head is simple, and lens construction assembling is compact, light and handy, small volume is easy to carry.
Brief description
Below in conjunction with the accompanying drawings patent of the present invention is further illustrated.
Fig. 1 is the optical system schematic diagram of this inventive embodiments；
Fig. 2 is the frame for movement schematic diagram one of this inventive embodiments；
Fig. 3 is the frame for movement schematic diagram two of this inventive embodiments；
Fig. 4 is the frame for movement schematic diagram three of this inventive embodiments；
In figure：
A- plano-convex plus lens A；B- crescent moon plus lens B；C- plano-concave minus lenses C；D- crescent moon plus lens D；1- body tube；2- connects
Part；3-CCD；4- cylinder；5- adpting flange；6- spacer ring one；7- spacer ring two；8- first step；Trim ring before 9-；10- second step；
Trim ring after 11-.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and detailed description.
As shown in figures 1-4, a kind of economical big thang-kng amount high-resolution tight shot, in the optical system of described camera lens
Along light, incident direction is sequentially provided with plano-convex plus lens A, crescent moon plus lens B, plano-concave minus lenses C and crescent moon plus lens from left to right
D, the frame for movement of described camera lens includes body tube 1, and described plano-convex plus lens A, crescent moon plus lens B, plano-concave minus lenses C are arranged on
The Inner Front End of body tube, described crescent moon plus lens D is arranged on the interior rear end of body tube, and the outer rear end barrel of described body tube sets
It is equipped with connection external screw thread, whole eyeglasses are all arranged on body tube, so can preferably ensure the axiality that each eyeglass is installed
Also improve the resistance to shock of camera lens.
In the present embodiment, the center air between described plano-convex plus lens A and crescent moon plus lens B is spaced apart 0.328mm,
The edge airspace of described crescent moon plus lens B and plano-concave minus lenses C is 0.206mm, and described plano-concave minus lenses C is just saturating with crescent moon
Center air between mirror D is spaced apart 25.406mm, and the center air of described crescent moon plus lens D to image planes is spaced apart 7.789mm.
In the present embodiment, the focal length of described camera lens is 50mm.
In the present embodiment, described plano-convex plus lens A, crescent moon plus lens B, plano-concave minus lenses C and crescent moon plus lens D all adopt
With glass of high refractive index, its refractive index is all higher than 1.85, using glass of high refractive index, reduces deflection angle after eyeglass for the light
Degree, to reduce senior aberration, so not only makes picture qualitative change good, and makes tolerance more insensitive.
In the present embodiment, the frame for movement of described camera lens also includes connector 2, CCD（3）, described body tube is through connecting
Part is connected with CCD, and described connector includes cylinder 4, the inner tube wall of described cylinder be provided with for be connected external screw thread bolt
Connection female thread, the connection end three holding screw tightening of the cylinder of described body tube and connector, after described cylinder
End is provided with adpting flange 5, and described adpting flange is spirally connected with CCD through screw, forms firm draw bail, is adjusted by suitable
The threaded engagement distance of the cylinder of section body tube and connector, can readily be found out optical imagery face and be overlapped with CCD target surface position
Put.
In the present embodiment, it is provided with spacer ring 1 between described plano-convex plus lens A and crescent moon plus lens B, described crescent moon is just
It is provided with spacer ring 27, the Inner Front End of described body tube is provided with to be born thoroughly for positioning plano-concave between lens B and plano-concave minus lenses C
The first step 8 of mirror C, the front end of the described plano-convex plus lens A front trim ring 9 through being screwed into body tube carries out gluing fastening.
In the present embodiment, the interior rear end of described body tube is provided with the second step 10 for positioning crescent moon plus lens D,
The rear end of described crescent moon plus lens D carries out gluing fastening through being screwed into trim ring 11 after body tube.
In the present embodiment, this economical big thang-kng amount high-resolution tight shot has reached following technical specification：（1）Burnt
Away from 50mm；（2）Thang-kng is with diameter greater than 16mm；（3）Target surface size is more than 6mm；（4）Pixel is higher than 2,000,000；（5）Distortion is less than
0.1%；（6）Mechanical overall length is less than 70mm.
In the present embodiment, described body tube, front trim ring, rear trim ring, spacer ring one, spacer ring two inwall appropriate position equal
The some suitable grooves of width can be processed, and coat delustring paint, using body tube inwall to the scattering of stray light emission and suction
Receive, thus reaching the purpose of suppression veiling glare；There is main positive mating surface between body tube and connector, can guarantee that body tube and connection
The axiality of part requires.
The object, technical solutions and advantages of the present invention are further described by above-listed preferred embodiment, are answered
It is understood by, the foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (7)
1. a kind of economical big thang-kng amount high-resolution tight shot it is characterised in that：Along light in the optical system of described camera lens
Incident direction is sequentially provided with plano-convex plus lens A, crescent moon plus lens B, plano-concave minus lenses C and crescent moon plus lens D, institute to line from left to right
The frame for movement stating camera lens includes body tube, and described plano-convex plus lens A, crescent moon plus lens B, plano-concave minus lenses C are arranged on primary mirror
The Inner Front End of cylinder, described crescent moon plus lens D is arranged on the interior rear end of body tube, the outer rear end barrel of described body tube is provided with
Connect external screw thread.
2. economical big thang-kng amount high-resolution tight shot according to claim 1 it is characterised in that：Described plano-convex is just
Center air between lens A and crescent moon plus lens B is spaced apart 0.328mm's, described crescent moon plus lens B and plano-concave minus lenses C
Edge airspace is 0.206mm, and the center air between described plano-concave minus lenses C and crescent moon plus lens D is spaced apart
25.406mm, the center air of described crescent moon plus lens D to image planes is spaced apart 7.789mm.
3. economical big thang-kng amount high-resolution tight shot according to claim 2 it is characterised in that：Described camera lens
Focal length is 50mm.
4. economical big thang-kng amount high-resolution tight shot according to claim 2 it is characterised in that：Described plano-convex is just
, all using glass of high refractive index, its refractive index is all higher than for lens A, crescent moon plus lens B, plano-concave minus lenses C and crescent moon plus lens D
1.85.
5. economical big thang-kng amount high-resolution tight shot according to claim 1 it is characterised in that：Described camera lens
Frame for movement also includes connector, CCD, and described body tube is connected with CCD through connector, and described connector includes cylinder, described
The inner tube wall of cylinder be provided with for the connection female thread being connected external screw thread bolt, the rearward end of described cylinder is provided with even
Acting flange, described adpting flange is spirally connected with CCD through screw.
6. economical big thang-kng amount high-resolution tight shot according to claim 2 it is characterised in that：Described plano-convex
Be provided with spacer ring one between plus lens A and crescent moon plus lens B, be provided between described crescent moon plus lens B and plano-concave minus lenses C every
Circle two, the Inner Front End of described body tube is provided with the first step for positioning plano-concave minus lenses C, described plano-convex plus lens A's
The front trim ring through being screwed into body tube for the front end is fixed.
7. economical big thang-kng amount high-resolution tight shot according to claim 2 it is characterised in that：Described primary mirror
The interior rear end of cylinder is provided with the second step for positioning crescent moon plus lens D, and the rear end of described crescent moon plus lens D is become owner of through being spirally connected
The rear trim ring of lens barrel is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611052610.1A CN106405797B (en) | 2016-11-25 | 2016-11-25 | Economical big thang-kng amount high-resolution tight shot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611052610.1A CN106405797B (en) | 2016-11-25 | 2016-11-25 | Economical big thang-kng amount high-resolution tight shot |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106405797A true CN106405797A (en) | 2017-02-15 |
| CN106405797B CN106405797B (en) | 2018-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611052610.1A Active CN106405797B (en) | 2016-11-25 | 2016-11-25 | Economical big thang-kng amount high-resolution tight shot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106405797B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108873185A (en) * | 2017-05-09 | 2018-11-23 | 中国航空制造技术研究院 | A kind of fast assembling-disassembling exempts from debugging formula photodetector attachment device |
| CN109491052A (en) * | 2018-12-28 | 2019-03-19 | 福建福光天瞳光学有限公司 | A kind of 17mm high-resolution infrared lens and its assembly method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5739966A (en) * | 1996-02-19 | 1998-04-14 | Olympus Optical Co., Ltd. | Imaging lens system |
| JP2004347824A (en) * | 2003-05-22 | 2004-12-09 | Nidec Copal Corp | Imaging lens |
| CN103809276A (en) * | 2014-03-03 | 2014-05-21 | 福建福光数码科技有限公司 | Teleconverter provided with flange wide-angle high-power lens |
| CN104459944A (en) * | 2014-12-17 | 2015-03-25 | 福建福光数码科技有限公司 | Fixed focal length depth-of-field miniature lens |
-
2016
- 2016-11-25 CN CN201611052610.1A patent/CN106405797B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5739966A (en) * | 1996-02-19 | 1998-04-14 | Olympus Optical Co., Ltd. | Imaging lens system |
| JP2004347824A (en) * | 2003-05-22 | 2004-12-09 | Nidec Copal Corp | Imaging lens |
| CN103809276A (en) * | 2014-03-03 | 2014-05-21 | 福建福光数码科技有限公司 | Teleconverter provided with flange wide-angle high-power lens |
| CN104459944A (en) * | 2014-12-17 | 2015-03-25 | 福建福光数码科技有限公司 | Fixed focal length depth-of-field miniature lens |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108873185A (en) * | 2017-05-09 | 2018-11-23 | 中国航空制造技术研究院 | A kind of fast assembling-disassembling exempts from debugging formula photodetector attachment device |
| CN108873185B (en) * | 2017-05-09 | 2020-06-23 | 中国航空制造技术研究院 | Quick assembly disassembly debugging-free formula photoelectric detector connecting device |
| CN109491052A (en) * | 2018-12-28 | 2019-03-19 | 福建福光天瞳光学有限公司 | A kind of 17mm high-resolution infrared lens and its assembly method |
| CN109491052B (en) * | 2018-12-28 | 2024-03-05 | 福建福光天瞳光学有限公司 | 17mm high-resolution infrared lens and assembly method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106405797B (en) | 2018-07-27 |
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