CN209542935U - The vehicle-mounted optical system of wide-angle high-resolution - Google Patents
The vehicle-mounted optical system of wide-angle high-resolution Download PDFInfo
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- CN209542935U CN209542935U CN201822224601.7U CN201822224601U CN209542935U CN 209542935 U CN209542935 U CN 209542935U CN 201822224601 U CN201822224601 U CN 201822224601U CN 209542935 U CN209542935 U CN 209542935U
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Abstract
The utility model relates to a kind of vehicle-mounted optical systems of wide-angle high-resolution, including preceding group of eyeglass A, the diaphragm C and rear group eyeglass B set gradually from the object side to the image side, group eyeglass A includes bent moon negative lens A1, double-concave negative lens A2 and biconvex positive lens A3 before described, group eyeglass B includes biconvex positive lens B1, bent moon negative lens B2 and biconvex positive lens B3, the biconvex positive lens B1 and bent moon negative lens B2 contiguity into gluing unit after described.Not only structure design is simple, reasonable for the utility model, and the utility model relative aperture is big, shooting picture brightness is high, and field angle is big, and coverage is big, chief ray incidence angles are smaller, image fault is reduced, guarantees image illumination, this optical system susceptibility is low, it is easily assembled and debugs, have broad application prospects.
Description
Technical field
The utility model relates to a kind of vehicle-mounted optical systems of wide-angle high-resolution.
Background technique
Camera lens is the important component of vehicle-mounted camera, and on-vehicle lens are in the stage of high speed development, market at present
Upper all kinds of on-vehicle lens emerge one after another, but that there are light passing amounts is small, illumination is low for most of camera lenses, distorts the problems such as big.This kind of camera lens
Cooperation video camera is in use, be difficult really to realize higher resolution ratio, and most of camera lens uses plastic aspherical element, but plastics
Aspherical stability is poor, can not meet the operating temperature range of vehicle-mounted requirement well.
Utility model content
In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a kind of wide-angle high-resolutions
Vehicle-mounted optical system, it is not only reasonable in design but also efficiently convenient.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is: a kind of vehicle-mounted optics of wide-angle high-resolution
System, including preceding group of eyeglass A, the diaphragm C and rear group eyeglass B set gradually from the object side to the image side, organizing eyeglass A before described includes
Bent moon negative lens A1, double-concave negative lens A2 and biconvex positive lens A3, organizing eyeglass B after described includes biconvex positive lens B1, bent moon
Negative lens B2 and biconvex positive lens B3, the biconvex positive lens B1 and bent moon negative lens B2 contiguity are at gluing unit.
Further, the airspace between the bent moon negative lens A1 and double-concave negative lens A2 is 2.9mm；The concave-concave
Airspace between negative lens A2 and biconvex positive lens A3 is 0.8mm；The bent moon negative lens B2 and biconvex positive lens B3 it
Between airspace be 0.1mm.
Further, the airspace between the preceding group eyeglass and rear group eyeglass is 3.7mm.
Further, plate optical filter is additionally provided between the biconvex positive lens B3 and the imaging surface IMA of camera lens.
Compared with prior art, the utility model has the following beneficial effects: the utility model not only structure design it is simple,
Rationally, and the utility model relative aperture is big, and shooting picture brightness is high, and field angle is big, and coverage is big, chief ray incidence angles
It is smaller, image fault is reduced, guarantees image illumination, this optical system susceptibility is low, is easily assembled and debugs, and has wide answer
Use prospect.
The utility model is described in more detail with reference to the accompanying drawings and detailed description.
Detailed description of the invention
Fig. 1 is the optics configuration schematic diagram of the utility model embodiment.
Fig. 2 is the visible light MTF functional value schematic diagram of the utility model embodiment.
Fig. 3 is that the low temperature -40 of the utility model embodiment spends the mtf value schematic diagram under environment.
Fig. 4 is the mtf value schematic diagram under 105 degree of environment of high temperature of the utility model embodiment.
Fig. 5 is the defocusing curve schematic diagram of the utility model embodiment.
In figure:
Eyeglass A, A1- bent moon negative lens A1, A2- double-concave negative lens A2, A3- biconvex positive lens A3 are organized before A-；
C- diaphragm C；
Eyeglass B, B1- biconvex positive lens B1, B2- bent moon negative lens B2, B3- biconvex positive lens B3 are organized after B-.
Specific embodiment
In order to make the above-mentioned features and advantages of the utility model more obvious and understandable, special embodiment below, and cooperate attached drawing,
It is described in detail below.
As shown in Fig. 1 ~ 5, a kind of vehicle-mounted optical system of wide-angle high-resolution, before setting gradually from the object side to the image side
Group eyeglass A, diaphragm C and rear group eyeglass B, organizing eyeglass A before described includes bent moon negative lens A1, double-concave negative lens A2 and biconvex
Positive lens A3, organizing eyeglass B after described includes biconvex positive lens B1, bent moon negative lens B2 and biconvex positive lens B3, the biconvex
Positive lens B1 and bent moon negative lens B2 touches into gluing unit.
In the utility model embodiment, the airspace between the bent moon negative lens A1 and double-concave negative lens A2 is
2.9mm；Airspace between the double-concave negative lens A2 and biconvex positive lens A3 is 0.8mm；The bent moon negative lens B2 with
Airspace between biconvex positive lens B3 is 0.1mm.
In the utility model embodiment, the airspace organized between eyeglass and rear group eyeglass before described is 3.7mm.
In the utility model embodiment, it is additionally provided between the biconvex positive lens B3 and the imaging surface IMA of camera lens flat
Plate optical filter.
In the utility model embodiment, light successively passes through bent moon negative lens A1, double-concave negative lens A2, biconvex positive lens
It is imaged after A3, diaphragm C, biconvex positive lens B1, bent moon negative lens B2 and biconvex positive lens B3.
In the utility model embodiment, the specific optical index of the utility model are as follows:
(1) focal length: EFFL=3mm；
(2) number=2.0 F；
(3) field angle: 2w >=145 °；
(4) imaging circular diameter is greater than Ф 6.6；
(5) service band: visible light；
(6) it distorts: < -20%；
(7) optics overall length TTL≤21.6mm, optics rear cut-off distance >=6.5mm；
(8) this camera lens is suitable for 3,000,000 pixel high-resolution CCD or cmos camera.
In the utility model embodiment, the parameter of above-mentioned each eyeglass is as shown in the table:
In the utility model embodiment, the utility model is made of six sheet glass spheric glasses, is three structures after first three,
Since field angle is larger, gentle incident ray is played the role of using bent moon negative lens A1, double-concave negative lens A2, enters chief ray
Firing angle is smaller, improves picture brightness, rear group uses gluing unit, by the glass of low-refraction high Abbe number Abbe low with high refractive index
Several glass carries out gluing, balances color difference, reasonably selects glass material and glass curvature, reduces the tolerance sensitivities of camera lens,
Assembly easy to process.
In the utility model embodiment, the mtf value of the utility model under visible light is higher it can be seen from attached drawing 2,
High resolution can meet the imaging requirements of 3,000,000 CCD or CMOS；By the utility model it can be seen from attached drawing 3 and attached drawing 4-
At a temperature of 40 degree and 105 degree, mtf value is basically unchanged, substantially realization zero temp shift, can meet the biggish operating temperature of on-vehicle lens
Area requirement；The defocusing curve Relatively centralized it can be seen from attached drawing 5, optimum image plane, that is, image planes position.
In the utility model embodiment, the utility model has biggish field angle, and field angle is greater than 145 degree, can clap
It is larger to take the photograph range, and high resolution；Relative aperture is big, and shooting picture brightness is high, and field angle is big, and coverage is big；This is practical new
Type chief ray incidence angles are smaller, reduce image fault, guarantee image illumination；Pass through the reasonable selection to glued sheet material, balance
Color difference；The utility model makes camera lens meet vehicle by reasonably selecting front group and rear group material and the distribution of reasonable focal power
Desired operating temperature range is carried, thermal compensation is realized；The utility model susceptibility is low, is easily assembled and debugs；This is practical new
Type the selection of material economy, good manufacturability are suitable for mass production.
For indicating the art of positional relationship or shape applied in above-mentioned any technical solution disclosed by the utility model
Its meaning includes approximate with its, similar or close state or shape to language unless otherwise stated.
Either component provided by the utility model by multiple individual component parts either assembled, or
The separate part that integrally formed technique manufactures.
Above embodiments are only to illustrate the technical solution of the utility model rather than its limitations；Although implementing referring to preferable
The utility model is described in detail in example, it should be understood by those ordinary skilled in the art that: still can be to this reality
It is modified with novel specific embodiment or some technical features can be equivalently replaced；Without departing from the utility model
The spirit of technical solution should all be covered within the scope of the technical scheme claimed by the utility model.
Claims (4)
1. a kind of vehicle-mounted optical system of wide-angle high-resolution, it is characterised in that: including preceding group set gradually from the object side to the image side
Eyeglass A, diaphragm C and rear group eyeglass B, it is described before group eyeglass A include bent moon negative lens A1, double-concave negative lens A2 and biconvex just
Lens A3, organizing eyeglass B after described includes biconvex positive lens B1, bent moon negative lens B2 and biconvex positive lens B3, and the biconvex is just
Lens B1 and bent moon negative lens B2 touches into gluing unit.
2. the vehicle-mounted optical system of wide-angle high-resolution according to claim 1, it is characterised in that: the bent moon negative lens A1
Airspace between double-concave negative lens A2 is 2.9mm；Air between the double-concave negative lens A2 and biconvex positive lens A3
Between be divided into 0.8mm；Airspace between the bent moon negative lens B2 and biconvex positive lens B3 is 0.1mm.
3. the vehicle-mounted optical system of wide-angle high-resolution according to claim 1, it is characterised in that: group eyeglass is with after before described
Airspace between group eyeglass is 3.7mm.
4. the vehicle-mounted optical system of wide-angle high-resolution according to claim 1, it is characterised in that: the biconvex positive lens B3
Plate optical filter is additionally provided between the imaging surface IMA of camera lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822224601.7U CN209542935U (en) | 2018-12-28 | 2018-12-28 | The vehicle-mounted optical system of wide-angle high-resolution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822224601.7U CN209542935U (en) | 2018-12-28 | 2018-12-28 | The vehicle-mounted optical system of wide-angle high-resolution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209542935U true CN209542935U (en) | 2019-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822224601.7U Active CN209542935U (en) | 2018-12-28 | 2018-12-28 | The vehicle-mounted optical system of wide-angle high-resolution |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459838A (en) * | 2018-12-28 | 2019-03-12 | 福建福光天瞳光学有限公司 | The vehicle-mounted optical system of wide-angle high-resolution and imaging method |
-
2018
- 2018-12-28 CN CN201822224601.7U patent/CN209542935U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459838A (en) * | 2018-12-28 | 2019-03-12 | 福建福光天瞳光学有限公司 | The vehicle-mounted optical system of wide-angle high-resolution and imaging method |
| CN109459838B (en) * | 2018-12-28 | 2024-05-10 | 福建福光天瞳光学有限公司 | Wide-angle high-resolution vehicle-mounted optical system and imaging method |
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