CN209690603U - Mega pixel vehicle-mounted lens - Google Patents
Mega pixel vehicle-mounted lens Download PDFInfo
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- CN209690603U CN209690603U CN201920585229.4U CN201920585229U CN209690603U CN 209690603 U CN209690603 U CN 209690603U CN 201920585229 U CN201920585229 U CN 201920585229U CN 209690603 U CN209690603 U CN 209690603U
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- lens
- vehicle
- mega pixel
- body tube
- airspace
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Abstract
The utility model relates to a kind of mega pixel vehicle-mounted lens.The camera lens includes body tube and the first lens, the second lens, the third lens, diaphragm, the 4th lens, the 5th lens and the 6th lens, first lens are positive selenodont lens, second lens are positive selenodont lens, the third lens are lenticular lens, 4th lens are double concave type lens, 5th lens are lenticular lens, and the gluing unit of the 4th lens and the 5th lens composition contiguity, the 6th lens are lenticular lens.The utility model uses five group of six slice structure, resolution ratio reaches 1080P, field angle surpasses 200 °, relative aperture D/f ' is 2.5 ± 10%, suitable for video camera image planes 1/3inch or more, optics overall length TTL: < 13mm, operating temperature has bigger field angle, shorter optics overall length, better reliable operation performance from -40 DEG C to+105 DEG C, compared to on-vehicle lens on the market.
Description
Technical field
The utility model relates to camera lens field, in particular to a kind of mega pixel vehicle-mounted lens.
Background technique
It is vehicle-mounted to take the photograph as advanced driving assistance system (ADAS) and automatic Pilot market development are rapid in global range
Key sensor as head as intelligent automobile, demand rapid growth, as the on-vehicle lens of vehicle-mounted camera main component,
The also stable rising of its market scale.Mainly with wide-angle, the mega pixel vehicle-mounted lens of total length, short focus are on-vehicle lens
It is main, it is typically mounted at Chinese herbaceous peony, close-ups are done in Che Hou, vehicle side, prevents vehicle collision.On-vehicle lens are generally 4 on the market,
Resolution ratio is VGA, and field angle is between 100 ° -150 °, and for length 15 or so, water proof and dust proof rank is IP66-IP67.VGA is passed
The defeated easy loss of signal, display are fuzzy.IP66 and IP67 waterproof can not reach good waterproof effect under water vapour environment for a long time
Fruit makes to haze inside camera lens, causes fuzzy pictures.
Utility model content
The utility model provides a kind of mega pixel vehicle-mounted lens, which uses five group of six slice structure, and resolution ratio reaches
1080P, field angle surpass 200 °, and relative aperture D/f ' is 2.5 ± 10%, is suitable for video camera image planes 1/3inch or more, optics is total
Long TTL: < 13mm, operating temperature has bigger field angle, more from -40 DEG C to+105 DEG C, compared to on-vehicle lens on the market
Short optics overall length, better reliable operation performance.
The utility model is realized in this way: a kind of mega pixel vehicle-mounted lens, it is characterised in that: the camera lens includes primary mirror
Cylinder and the first lens, the second lens, the third lens, the diaphragm, the 4th being set in turn in along light incident direction in body tube
Lens, the 5th lens and the 6th lens, first lens are positive selenodont lens, and second lens selenodont that is positive is saturating
Mirror, the third lens are lenticular lens, and the 4th lens are double concave type lens, and the 5th lens are that biconvex is saturating
Mirror, the gluing unit of the 4th lens and the 5th lens composition contiguity, the 6th lens are lenticular lens, and described first thoroughly
Airspace between mirror and the second lens is 1.3~1.4mm, and the airspace between second lens and the third lens is
0.5~1mm, the airspace between the third lens and the 4th lens are 1.4~1.5mm, the 5th lens and the 6th
Airspace between lens is 0.05~0.2mm, first lens, the second lens, the third lens, the 4th lens, the 5th
The combined focal length of lens and the 6th lens is 1.6mm, and the optics overall length of the mega pixel vehicle-mounted lens is less than 13mm.
Preferably, each lens need to be met the following optical conditions:
1.7 < n1 < 1.9,40 < v1 < 50；
1.6 < n2 < 1.7,45 < v2 < 50；
1.9 < n3 < 2.0,15 < v3 < 20；
1.9<n4<2.0,10<v4<20；
1.5<n5<2.0,40<v5<50；
1.8<n6<1.9,45<v6<55；
Wherein n1-n6 is followed successively by the refractive index of first the-the six lens of lens, and v1-v6 is followed successively by first the-the six lens of lens
Abbe number.
Preferably, for better protective, translucency and waterproofness, need to carry out by plated film it is perfect, first thoroughly
Waterproof membrane is coated on mirror, it is desirable that the auxiliary plating of ion source, on the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens
It is coated with magnesium fluoride anti-reflection film.
Preferably, the mega pixel vehicle-mounted lens further include preceding pressing ring, sealing ring, the first mechanical spacer ring and the second machine
Tool spacer ring, the preceding pressing ring, which is fixedly installed in outside the front end nozzle of body tube and plays limit to the front position of the first lens, to be made
With the sealing ring is fixed between the first lens and body tube to carry out waterproof sealing, the fixed peace of first mechanical spacer ring
The airspace of the two, second machine are limited in cylinder loaded on body tube and between the third lens and the 4th lens
Tool spacer ring is fixedly installed in the cylinder of body tube and positioned at the 4th lens and the 6th lens between with the 5th lens of restriction and the
Airspace between six lens, the rear end of the body tube are equipped with the limit convex for being limited to the 6th lens rear
Edge.
For the prior art, the utility model is had the advantage that
1. the utility model provides a kind of mega pixel vehicle-mounted lens, which uses five group of six slice structure, resolution ratio
Up to 720P, field angle surpasses 200 °, and relative aperture D/f ' is 2.5 ± 10%, is suitable for video camera image planes 1/3inch or more, optics
Overall length TTL: < 13mm, operating temperature from -40 DEG C to+105 DEG C, compared to on-vehicle lens on the market have bigger field angle,
Shorter optics overall length, better reliable operation performance.
2. mega pixel vehicle-mounted lens provided by the utility model, the first lens plate waterproof membrane and body tube is equipped with groove,
It arranges in pairs or groups between camera housing sealing ring, the decrement of sealing ring reaches 16%-30%, and collective effect can realize water proof and dust proof
Function, it is highest up to IP68 grades.
3. mega pixel vehicle-mounted lens provided by the utility model, the second lens, the third lens, the 4th lens, the 5th are thoroughly
It is coated with magnesium fluoride anti-reflection film on mirror and the 6th lens, using the coating designs of multilayer, possesses outstanding protective and translucency.
Detailed description of the invention
The utility model is described in further detail in conjunction with the embodiments with reference to the accompanying drawings:
Fig. 1 is the structural schematic diagram of the utility model mega pixel vehicle-mounted lens；
Fig. 2 is the lens structure schematic diagram of the utility model mega pixel vehicle-mounted lens；
Fig. 3 a is the schematic diagram of the angle of view on the market；
Fig. 3 b is the schematic diagram of the utility model mega pixel vehicle-mounted lens field angle；
Fig. 4 is million on-vehicle lens MTF curve figure of the utility model；
Fig. 5 is million on-vehicle lens seidel aberration diagram of the utility model；
Fig. 6 is million on-vehicle lens depth of focus curve graph of the utility model；
Fig. 7 is million on-vehicle lens relative illumination of the utility model.
Symbol description in figure: R1, preceding pressing ring, S1, sealing ring, R2, body tube, G1, the first mechanical spacer ring, G2, the second machine
Tool spacer ring, A-1, the first lens, A-2, the second lens, A-3, the third lens, A-4, the 4th lens, A-5, the 5th lens, A-6,
6th lens, B, diaphragm.
Specific embodiment
The content of the present invention is described in detail with specific embodiment with reference to the accompanying drawings of the specification:
As shown in Figs. 1-2, a kind of mega pixel vehicle-mounted lens provided by the utility model, it is characterised in that: the camera lens packet
The first lens A-1, the second lens A-2, for including body tube R2 and being set in turn in along light incident direction in body tube R2
Three lens A-3, diaphragm B, the 4th lens A-4, the 5th lens A-5 and the 6th lens A-6, the first lens A-1 are positive crescent moon
Type lens, the second lens A-2 are positive selenodont lens, and the third lens A-3 is lenticular lens, the 4th lens
A-4 is double concave type lens, and the 5th lens A-5 is lenticular lens, the 4th lens A-4 and the 5th lens A-5 composition
The gluing unit of contiguity, the 6th lens A-6 are lenticular lens, the sky between the first lens A-1 and the second lens A-2
1.3~1.4mm is divided between gas, the airspace between the second lens A-2 and the third lens A-3 is 0.5~1mm, described
Airspace between the third lens A-3 and the 4th lens A-4 is 1.4~1.5mm, the 5th lens A-5 and the 6th lens
Airspace between A-6 is 0.05~0.2mm, and the first lens A-1, the second lens A-2, the third lens A-3, the 4th are thoroughly
The combined focal length of mirror A-4, the 5th lens A-5 and the 6th lens A-6 are 1.6mm, and the optics of the mega pixel vehicle-mounted lens is total
It is long to be less than 13mm.
Preferably, each lens need to be met the following optical conditions:
1.7 < n1 < 1.9,40 < v1 < 50；
1.6 < n2 < 1.7,45 < v2 < 50；
1.9 < n3 < 2.0,15 < v3 < 20；
1.9<n4<2.0,10<v4<20；
1.5<n5<2.0,40<v5<50；
1.8<n6<1.9,45<v6<55；
Wherein n1-n6 is followed successively by the refractive index of first the-the six lens of lens, and v1-v6 is followed successively by first the-the six lens of lens
Abbe number.
Preferably, for better protective, translucency and waterproofness, need to carry out by plated film it is perfect, first thoroughly
Waterproof membrane is coated on mirror A-1, the waterproof membrane uses super abrasive waterproof membrane, it is desirable that the auxiliary plating of ion source, the second lens A-2, third
Magnesium fluoride anti-reflection film is coated on lens A-3, the 4th lens A-4, the 5th lens A-5 and the 6th lens A-6.
As illustrated in fig. 1, it is preferred that the mega pixel vehicle-mounted lens further include preceding pressing ring R1, sealing ring S1, the first machinery
Spacer ring G1 and the second mechanical spacer ring G2, the front end nozzle that the preceding pressing ring R1 is fixedly installed in body tube R2 are outer and saturating to first
The front position of mirror A-1 plays position-limiting action, and the sealing ring S1 is fixed between the first lens A-1 and body tube R2 to be prevented
Water-stop, the first mechanical spacer ring G1 are fixedly installed in the cylinder of body tube R2 and are located at the third lens A-3 and the 4th thoroughly
Airspace between mirror A-4 both to limit, the second mechanical spacer ring G2 be fixedly installed in the cylinder of body tube R2 and
The airspace between the 5th lens A-5 and the 6th lens A-6 is limited between the 4th lens A-4 and the 6th lens A-6,
The rear end of the body tube R2 is equipped with the defining flange for being limited to the 6th rear end lens A-6.
Mega pixel vehicle-mounted lens provided by the utility model can reach following optical index: 1, focal length: 1.6mm；2, light
Enclose F# < 2.5；3, it is suitable for video camera image planes 1/3inch or more；4, optics overall length TTL: < 13mm；5, IR is confocal: using optical filtering
Piece compensation；6, resolution ratio: more than mega pixel (as shown in Figure 4)；7, optic back focal: < 4mm；8, spectral region: 400-900nm.
The camera lens uses five group of six slice structure, and field angle surpasses 200 ° (as shown in Figure 3b), and relative aperture D/f ' is 2.5 ± 10%, In
While performance indicator is met the requirements, IP68 grades of water proof and dust proof requirements can be reached, adapt to -40 to+105 DEG C of harsh environment, tool
There are good translucency and protective.
Fig. 3 a, Fig. 3 b are the utility model and angle of view comparison diagram on the market, and as can be seen from the figure: this is practical new
The million high definition on-vehicle lens that type provides are wider than angle lens on the market.Fig. 4 is that million on-vehicle lens MTF of the utility model is bent
Line chart, as can be seen from the figure: million high definitions on-vehicle lens provided by the utility model meet million or more pixel, and image quality
Uniformly.Fig. 5 is million on-vehicle lens seidel aberration diagram of the utility model, as can be seen from the figure: provided by the utility model
Relatively reasonable, the not particularly pertinent place of million high definition on-vehicle lens each group seidel aberration profiles.Fig. 6 is the utility model
Million on-vehicle lens depth of focus curve graphs, as can be seen from the figure: the depth of focus of million high definitions on-vehicle lens provided by the utility model
It is good, meet the demand of actual production assembly, is suitble to volume production.Fig. 7 is million on-vehicle lens relative illumination of the utility model, Cong Tuzhong
It can be seen that million high definitions on-vehicle lens edge illumination provided by the utility model is greater than 30%, guarantee in use process without dark
Angle.
Above-mentioned specific embodiment is only explained in detail the technical solution of the utility model, and the utility model is not
It is only limited only to above-described embodiment, all any improvement or replacement according to the utility model principle should all be practical new at this
Within the protection scope of type.
Claims (4)
1. a kind of mega pixel vehicle-mounted lens, it is characterised in that: the camera lens includes body tube (R2) and along light incident direction
The first lens (A-1), the second lens (A-2), the third lens (A-3), the diaphragm (B), being set in turn in body tube (R2)
Four lens (A-4), the 5th lens (A-5) and the 6th lens (A-6), first lens (A-1) are positive selenodont lens, described
Second lens (A-2) are positive selenodont lens, and the third lens (A-3) are lenticular lens, and the 4th lens (A-4) are
Double concave type lens, the 5th lens (A-5) are lenticular lens, the 4th lens (A-4) and the 5th lens (A-5) composition
The gluing unit of contiguity, the 6th lens (A-6) are lenticular lens, first lens (A-1) and the second lens (A-2) it
Between airspace be 1.3~1.4mm, airspace between second lens (A-2) and the third lens (A-3) is 0.5
~1mm, the airspace between the third lens (A-3) and the 4th lens (A-4) are 1.4~1.5mm, the 5th lens
(A-5) airspace between the 6th lens (A-6) is 0.05~0.2mm, first lens (A-1), the second lens (A-
2), the combined focal length of the third lens (A-3), the 4th lens (A-4), the 5th lens (A-5) and the 6th lens (A-6) is 1.6mm,
The optics overall length of the mega pixel vehicle-mounted lens is less than 13mm.
2. mega pixel vehicle-mounted lens according to claim 1, each lens need to be met the following optical conditions:
1.7 < n1 < 1.9,40 < v1 < 50；
1.6 < n2 < 1.7,45 < v2 < 50；
1.9 < n3 < 2.0,15 < v3 < 20；
1.9<n4<2.0,10<v4<20；
1.5<n5<2.0,40<v5<50；
1.8<n6<1.9,45<v6<55；
Wherein n1-n6 is followed successively by the refractive index of first the-the six lens of lens, and v1-v6 is followed successively by the Ah of first the-the six lens of lens
Shellfish coefficient.
3. mega pixel vehicle-mounted lens according to claim 1, it is characterised in that: be coated on first lens (A-1)
Waterproof membrane, the second lens (A-2), the third lens (A-3), the 4th lens (A-4), the 5th lens (A-5) and the 6th lens (A-6)
On be coated with magnesium fluoride anti-reflection film.
4. mega pixel vehicle-mounted lens according to claim 1, it is characterised in that: the mega pixel vehicle-mounted lens also wrap
Preceding pressing ring (R1), sealing ring (S1), the first mechanical spacer ring (G1) and the second mechanical spacer ring (G2) are included, the preceding pressing ring (R1) is solid
Front end nozzle of the Dingan County loaded on body tube (R2) is outer and plays position-limiting action, the sealing to the front position of the first lens (A-1)
Circle (S1) is fixed between the first lens (A-1) and body tube (R2) to carry out waterproof sealing, first mechanical spacer ring (G1)
Both be fixedly installed in the cylinder of body tube (R2) and limited between the third lens (A-3) and the 4th lens (A-4)
Airspace, second mechanical spacer ring (G2) is fixedly installed in the cylinder of body tube (R2) and is located at the 4th lens (A-
4) airspace between the 5th lens (A-5) and the 6th lens (A-6), the master are limited between the 6th lens (A-6)
The rear end of lens barrel (R2) is equipped with the defining flange for being limited to the 6th rear end lens (A-6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920585229.4U CN209690603U (en) | 2019-04-26 | 2019-04-26 | Mega pixel vehicle-mounted lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920585229.4U CN209690603U (en) | 2019-04-26 | 2019-04-26 | Mega pixel vehicle-mounted lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209690603U true CN209690603U (en) | 2019-11-26 |
Family
ID=68608376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920585229.4U Active CN209690603U (en) | 2019-04-26 | 2019-04-26 | Mega pixel vehicle-mounted lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209690603U (en) |
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2019
- 2019-04-26 CN CN201920585229.4U patent/CN209690603U/en active Active
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