CN207636833U - A kind of optical lenses - Google Patents
A kind of optical lenses Download PDFInfo
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- CN207636833U CN207636833U CN201720301894.7U CN201720301894U CN207636833U CN 207636833 U CN207636833 U CN 207636833U CN 201720301894 U CN201720301894 U CN 201720301894U CN 207636833 U CN207636833 U CN 207636833U
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Abstract
The utility model provides a kind of optical lenses, from object side towards image planes side configure in order the first lens with negative power, the second lens with negative power, the third lens with positive light coke, optical filtering and constitute, first lens be meniscus shaped lens of the concave surface towards image planes side；Second lens are meniscus shaped lens of the concave surface towards image planes side, and the concave surface of second lens is set to the concave internal of first lens；The third lens have the lens towards image planes side convex surface；The optical filtering is plane mirror, and the optical filtering internal symmetry is equipped with filtering structure.The optical lens structure of the utility model has the characteristics such as simple in structure, efficiency of assembling is high, and production cost is low.Simultaneously because of its unique production technology and structure design, make the utility model optical lens structure itself that there are the characteristics such as water proof and dust proof is anti-scratch.
Description
Technical field
The utility model is related to optical image technology fields, and in particular to a kind of vehicle-mounted optical lenses.
Background technology
Wide-angle lens is widely used in safety monitoring equipment, vehicle-mounted camera-shooting and recording device, requirement of such equipment for camera lens
It is miniaturization, lightweight, operating temperature range is wide and is imaged high definition.In the prior art, it is needed for the market of miniaturization, low cost
The wide-angle lens having developed using plastic aspherical element technology is sought, but often thang-kng performance is weaker for this kind of wide-angle lens, working distance
It is shorter from also, and temperature compensation characteristic is bad, cannot keep comparatively ideal imaging definition in the presence of a harsh environment.
Currently, with the continuous renewal of sensor devices, the performance of vehicle-mounted pick-up product is also constantly promoted, using VGA
The vehicle-mounted pick-up product of scheme cannot meet the needs of vehicle-mounted to high definition product in market, and high Qinghua and the vehicle-mounted of miniaturization are taken the photograph
As product is development trend from now on.For the existing vehicle-mounted reversing camera lens of mainstream mainly for VGA chip developments, pixel is too low, and
Length is longer, and wear-resisting property is poor, cannot meet the needs of existing market is to the high Qinghua of vehicle-mounted product and miniaturization.
Utility model content
In view of this, the utility model provides, one kind is simple in structure, efficiency of assembling is high, and production cost is low, uses optics
The combination of glass and optics plastic cement, the processing technology of the optical aspherical surface utilized, entire lens length further shorten, horizontal angle
Degree reaches 100 degree of optical lenses.
The technical solution of the utility model is：A kind of optical lenses, which is characterized in that from object side towards image planes side
Configure in order the first lens with negative power, the second lens with negative power, the third lens with positive light coke,
Optical filtering and constitute, first lens be meniscus shaped lens of the concave surface towards image planes side；Second lens are concave surface direction
The meniscus shaped lens of image planes side, the concave surface of second lens are set to the concave internal of first lens；The third lens
With the lens towards image planes side convex surface；The optical filtering is plane mirror, and the optical filtering internal symmetry is equipped with filtering structure.
First lens of the utility model, the second lens, the third lens are optics plastic lens, are added using aspherical
Work technology and top optically transparent material, good balance optical aberration do not have to temperature response characteristics, between eyeglass using material
The aberration compensation of temperature is had, 80 degree of image qualities of entire camera lens heatproof can be made not to be deteriorated.
Further, the optical lens further includes optics protective glass, protecgulum, carrier, water proof ring, the first spacer ring,
Two spacer rings, third spacer ring, the optics protective glass, the first lens, the second lens, the third lens, optical filtering are successively set on
Between the carrier, the outside of the carrier is equipped with protecgulum, and the protecgulum offsets with the optics protective glass.The utility model
In, the optics protective glass can play the role of wear-resisting scratch-resistant, the lens construction inside energy effective protection；The carrier is
The carrier of entire optical mirror slip and optical accessories, its dimensional accuracy directly determine the imaging effect and camera lens of entire camera lens
Dimensions length.
Further, the optics protective glass and the side towards image planes and between the carrier be equipped with water proof ring.Institute
It states water proof ring and uses heat-resisting silica gel ring, mainly effect is to prevent camera lens surface from entering vapor and dust, makes entire camera lens
Achieve the effect that dustproof and waterproof.
Further, the first spacer ring is equipped between first lens and the carrier, first spacer ring is set to institute
It states inside waterproof spacer ring.It offsets with waterproof spacer ring inside on the inside of first spacer ring.
Further, the second spacer ring is equipped between first lens and the second lens, second lens and third are saturating
Third spacer ring is equipped between mirror.First spacer ring, the second spacer ring, third spacer ring are with friction and Extrusion between eyeglass is prevented, again
Ensure the optical interval between eyeglass, the effect of also certain elimination stray light.
Further, the horizontal cross-section in region of the carrier inside between the third lens and optical filtering be etc.
Waist is trapezoidal.The region can coordinate the convex lens of the third lens, avoid the refraction of light, to improve the optical property of camera lens.
Further, the side of the isosceles trapezoid is formed by connecting by the line segment of stepped arrangement.
Further, the filtering structure be with including there is the convex lens of positive light coke and with negative power concave mirror,
The convex lens offsets with the concave mirror.The optical filtering is optical infrared edge filter, is to play the role of ending infrared ray,
Coordinate filtering structure, the scattering path of light can be increased, keep the color reducibility of camera lens more preferable.
Further, the focal length of entire lens system is set as f, the focal length of the first lens group is set as F1, the second lens
When the focal length of group is set as F2, meet -9 ＜（F1+F2）/ f ＜ -2.5.This structure is more advantageous to the miniaturization for realizing pick-up lens
And realize wide angle.
Further, when the focal length of above-mentioned the third lens group is set as F3, meet 5 ＜ F3/f ＜ 30.For inhibiting
Multiplying power chromatic aberation and curvature of the image is inhibited into condition in good range.If being more than upper limit value " 30 ", the second lens group
Focal power it is opposite die down, the multiplying power chromatic aberation outside axis becomes to correct insufficient.And, it is difficult to curvature of the image and astigmatism are inhibited
In good range.On the other hand, if being less than lower limiting value " 5 ", the focal power of the second lens group is opposite to become strong, in spite of utilization
The inhibition of multiplying power chromatic aberation, but the chromatic aberation on axis becomes to correct deficiency, it is difficult to obtain good imaging performance.And it is difficult to
Ensure sufficient back focal length.
Further, the length of the carrier of entire camera lens is set as L, meets 5mm<L<9mm, the preferred carrier
Length be set as 8mm, further shorten lens length.The total field angle of camera lens is being set as FOV, is meeting FOV and is less than or equal to
100°。
The utility model can be applicable to above automobile mounted rearview camera, and a plate glass of use adds 3 plastic cement
Optical mirror slip, reaches the scratch-resistant of automotive rear-view requirement, and angle is up to 100 degree, three big elements of camera lens waterproof, before camera lens
End is plate glass, so that machining eyeglass is become simple, cost advantage is apparent.
The optical lens structure of the utility model has the characteristics such as simple in structure, efficiency of assembling is high, and production cost is low.Together
The unique production technologies of Shi Yinqi and structure design make the utility model optical lens structure itself have water proof and dust proof anti-scratch
Etc. characteristics.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the partial structural diagram of the utility model.
Specific implementation mode
Below by the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Embodiment
A kind of optical lenses, which is characterized in that configured in order from object side towards image planes side with negative power
First lens 6, the second lens 8 with negative power, the third lens 10 with positive light coke, optical filtering 11 and constitute, institute
It is meniscus shaped lens of the concave surface towards image planes side to state the first lens 6；Second lens 8 are meniscus shaped of the concave surface towards image planes side
Lens, the concave surface of second lens 8 are set to the concave internal of first lens 6；The third lens 10 have towards picture
The lens on surface side convex surface；The optical filtering 11 is plane mirror, and 11 internal symmetry of the optical filtering is equipped with filtering structure.
First lens 6 of the utility model, the second lens 8, the third lens 10 are optics plastic lens, and use is aspherical
Processing technology and top optically transparent material, good balance optical aberration, using material do not have to temperature response characteristics, eyeglass
Between have the aberration compensation of temperature, 80 degree of image qualities of entire camera lens heatproof can be made not to be deteriorated.
Further, the optical lens further includes optics protective glass 2, protecgulum 1, carrier 4, water proof ring 3, the first spacer ring
5, the second spacer ring 7, third spacer ring 9, the optics protective glass 2, the first lens 6, the second lens 8, the third lens 10, optical filtering
11 are successively set between the carrier 4, and the outside of the carrier 4 is equipped with protecgulum 1, and the protecgulum 1 protects glass with the optics
Glass 2 offsets.In the utility model, the optics protective glass 2 can play the role of wear-resisting scratch-resistant, can be inside effective protection
Lens construction；The carrier 4 is the carrier 4 of entire optical mirror slip and optical accessories, its dimensional accuracy directly determines entirely
The imaging effect and Lens length of camera lens.
Further, the optics protective glass 2 and the side towards image planes and between the carrier 4 be equipped with water proof ring 3.
The water proof ring 3 uses heat-resisting silica gel ring, and mainly effect is to prevent camera lens surface from entering vapor and dust, makes entire mirror
Head achievees the effect that dustproof and waterproof.
Further, the first spacer ring 5 is equipped between first lens 6 and the carrier 4, first spacer ring 5 is arranged
Inside the waterproof spacer ring.It offsets on the inside of first spacer ring, 5 inside and the waterproof spacer ring.
Further, the second spacer ring 7, second lens 8 and the are equipped between first lens, 6 and second lens 8
Third spacer ring 9 is equipped between three lens 10.First spacer ring 5, the second spacer ring 7, third spacer ring 9 have prevent from rubbing between eyeglass
It wipes and squeezes, ensure the optical interval between eyeglass, the effect of also certain elimination stray light again.
Further, the carrier 4 is internally located at the level section in the region between the third lens 10 and optical filtering 11
Face is isosceles trapezoid.
Further, the side of the isosceles trapezoid is formed by connecting by the line segment of stepped arrangement.
Further, the filtering structure be with include have the convex lens 111 of positive light coke and with negative power it is recessed
Mirror 112, the convex lens offset with the concave mirror.The optical filtering 11 be optical infrared edge filter, be play cut-off it is infrared
The effect of line coordinates filtering structure, can increase the scattering path of light, keep the color reducibility of camera lens more preferable.
Further, the focal length of entire lens system is set as f, the focal length of 6 groups of the first lens is set as F1, the second lens
When 8 groups of focal length is set as F2, meet -9 ＜（F1+F2）/ f ＜ -2.5.This structure is more advantageous to the miniaturization for realizing pick-up lens
And realize wide angle.
Further, when the focal length of 10 groups of above-mentioned the third lens is set as F3, meet 5 ＜ F3/f ＜ 30.For pressing down
Multiplying power chromatic aberation processed and curvature of the image is inhibited into condition in good range.If being more than upper limit value " 30 ", the second lens 8
The focal power of group is opposite to die down, and the multiplying power chromatic aberation outside axis becomes to correct insufficient.And, it is difficult to curvature of the image and astigmatism are inhibited
In good range.On the other hand, if being less than lower limiting value " 5 ", the focal power of the second 8 groups of lens is opposite to become strong, in spite of
Chromatic aberation using the inhibition of multiplying power chromatic aberation, but on axis becomes to correct insufficient, it is difficult to obtain good imaging performance.And
It is difficult to ensure sufficient back focal length.
Further, the length of the carrier 4 of entire camera lens is set as L, meets 5mm<L<9mm, the preferred carrier
4 length is set as 8mm, further shortens lens length.The total field angle of camera lens is being set as FOV, is meeting FOV and is less than or equal to
100°。
The utility model can be applicable to above automobile mounted rearview camera, and a plate glass of use adds 3 plastic cement
Optical mirror slip reaches the scratch-resistant of automotive rear-view requirement, and angle can reach 100 degree, three big elements of camera lens waterproof, due to camera lens
Front end is plate glass, so that machining eyeglass is become simple, cost advantage is apparent.
The optical lens structure of the utility model has the characteristics such as simple in structure, efficiency of assembling is high, and production cost is low.Together
The unique production technologies of Shi Yinqi and structure design make the utility model optical lens structure itself have water proof and dust proof anti-scratch
Etc. characteristics.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing in the equivalent requirements of the claims will be fallen
All changes in justice and range are embraced therein.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.It is noted that the technical characteristic not being described in detail in the utility model, can lead to
Cross any prior art realization.
Claims (10)
1. a kind of optical lenses, which is characterized in that configure in order with negative power from object side towards image planes side
One lens, the second lens with negative power, the third lens with positive light coke, optical filtering and constitute, described first thoroughly
Mirror is meniscus shaped lens of the concave surface towards image planes side；Second lens are meniscus shaped lens of the concave surface towards image planes side, described
The concave surface of second lens is set to the concave internal of first lens；The third lens have towards the saturating of image planes side convex surface
Mirror；The optical filtering is plane mirror, and the optical filtering internal symmetry is equipped with filtering structure.
2. according to the optical lenses described in claim 1, which is characterized in that further include optics protective glass, protecgulum, load
Body, water proof ring, the first spacer ring, the second spacer ring, third spacer ring, the optics protective glass, the first lens, the second lens, third
Lens, optical filtering are successively set between the carrier, and the outside of the carrier is equipped with protecgulum, and the protecgulum is protected with the optics
Shield glass offsets.
3. according to the optical lenses described in claim 2, which is characterized in that the optics protective glass with towards image planes
Side and the carrier between be equipped with water proof ring.
4. according to the optical lenses described in claim 2, which is characterized in that between first lens and the carrier
Equipped with the first spacer ring, first spacer ring is set to inside the water proof ring, the first spacer ring inside and phase on the inside of water proof ring
It supports.
5. according to the optical lenses described in claim 2, which is characterized in that between first lens and the second lens
Equipped with the second spacer ring, third spacer ring is equipped between second lens and the third lens.
6. according to the optical lenses described in claim 2, which is characterized in that it is saturating that the carrier inside is located at the third
The horizontal cross-section in the region between mirror and optical filtering is isosceles trapezoid.
7. according to the optical lenses described in claim 6, which is characterized in that the side of the isosceles trapezoid is by being in rank
The line segment of scalariform arrangement is formed by connecting.
8. according to the optical lenses described in claim 1, which is characterized in that the filtering structure is with including having
The convex lens of positive light coke and there is negative power concave mirror, the convex lens offsets with the concave mirror.
9. according to the optical lenses described in claim 1, which is characterized in that be set as by the focal length of entire lens system
F, when the focal length of the first lens group is set as F1, the focal length of the second lens group is set as F2, meet -9 ＜（F1+F2）/ f ＜ -2.5.
10. according to the optical lenses described in claim 1, which is characterized in that set by the focal length of above-mentioned the third lens group
For F3 when, meet 5 ＜ F3/f ＜ 30.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720301894.7U CN207636833U (en) | 2017-03-27 | 2017-03-27 | A kind of optical lenses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720301894.7U CN207636833U (en) | 2017-03-27 | 2017-03-27 | A kind of optical lenses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207636833U true CN207636833U (en) | 2018-07-20 |
Family
ID=62860212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720301894.7U Active CN207636833U (en) | 2017-03-27 | 2017-03-27 | A kind of optical lenses |
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| Country | Link |
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| CN (1) | CN207636833U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109814240A (en) * | 2018-12-28 | 2019-05-28 | 玉晶光电股份有限公司 | Optical imaging lens |
| CN112925084A (en) * | 2019-12-06 | 2021-06-08 | 声远精密光学股份有限公司 | Fingerprint identification module and optical imaging lens |
-
2017
- 2017-03-27 CN CN201720301894.7U patent/CN207636833U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109814240A (en) * | 2018-12-28 | 2019-05-28 | 玉晶光电股份有限公司 | Optical imaging lens |
| CN112925084A (en) * | 2019-12-06 | 2021-06-08 | 声远精密光学股份有限公司 | Fingerprint identification module and optical imaging lens |
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