CN206311832U - High definition large aperture driving recording phtographic lens - Google Patents
High definition large aperture driving recording phtographic lens Download PDFInfo
- Publication number
- CN206311832U CN206311832U CN201621351884.6U CN201621351884U CN206311832U CN 206311832 U CN206311832 U CN 206311832U CN 201621351884 U CN201621351884 U CN 201621351884U CN 206311832 U CN206311832 U CN 206311832U
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- lens element
- lens
- aperture driving
- driving recording
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- 230000003287 optical effect Effects 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims description 8
- 230000005499 meniscus Effects 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 2
- 238000003384 imaging method Methods 0.000 claims 1
- 230000004075 alteration Effects 0.000 abstract description 7
- 230000000007 visual effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 201000009310 astigmatism Diseases 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001454 recorded image Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The utility model is related to high definition large aperture driving recording phtographic lens, including shell, the first lens element (L1), the second lens element (L2), the 3rd lens element (L3), the 4th lens element (L4), the 5th lens element (L5), the 6th lens element (L6) and optical filter (IR) are disposed with by thing side to image side in shell.The utility model is using six eyeglass composition optical frames, and the radius of curvature of first lens element, the second lens element and the 3rd lens element be on the occasion of, such that it is able to the aberration in effectively correction optical system, and the situation in control optical tube length ensures compared with wide visual field angle, reduce the distortion factor, good optical properties.
Description
Technical Field
The utility model relates to an optical lens belongs to optical lens technical field, more specifically says, the utility model relates to a big light ring driving record camera lens of high definition.
Background
The automobile data recorder is an instrument for recording relevant information such as images and sounds during the running of a vehicle. After the automobile data recorder is installed, the video images and the sound of the whole automobile driving process can be recorded, and evidence can be provided for traffic accidents. People who like self-driving tour can also use it to record the process of overcoming difficult obstructions. The video recording is carried out while driving, and the time, the speed and the position are recorded in the video recording at the same time, which is equivalent to a black box. The digital video camera can also be used for shooting life pleasure at home for DV or used for home monitoring. And the parking monitoring can be performed at ordinary times. The automobile data recorder is mainly divided into a portable automobile data recorder and a rear loader integrated DVD automobile data recorder.
The optical lenses used by the existing automobile data recorder are all small lenses due to size limitation, most of the lenses have aberration when in use, the total field angle is often small, the recorded image range is small, and the definition is required to be improved.
SUMMERY OF THE UTILITY MODEL
Based on above technical problem, the utility model provides a big light ring driving of high definition record camera lens to solved in the past that the optical lens aberration is big, the angle of vision is little and the technical problem that the definition of making a video recording is low.
For solving the above technical problem, the utility model discloses a technical scheme as follows:
the high-definition large-aperture driving recording photographic lens comprises a shell, wherein a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and an optical filter are sequentially arranged in the shell from an object side to an image side;
wherein,
the first lens element is a meniscus lens which has negative focal power and is convex to the object side;
the second lens element is a meniscus lens which has negative focal power and is convex to the image side;
the third lens element is a double meniscus lens with positive optical power;
the fourth lens element is a biconvex lens with positive focal power;
the fifth lens element is a biconvex lens with positive focal power;
the sixth lens element is a meniscus lens having a negative focal power and being concave toward the object side;
and a diaphragm hole is also arranged between the third lens element and the fourth lens element, and the curvature radiuses of the first lens element, the second lens element and the third lens element are all positive values.
Preferably, the first lens element, the second lens element, the third lens element, the fourth lens element, the fifth lens element, and the sixth lens element have a focal length ratio of: -1: -2: +12:+0.8: +0.8: -1.2.
Preferably, the first lens element satisfies the following conditional formula: nd is more than or equal to 1.83, and Vd is more than or equal to 42.80;
wherein,
nd denotes the d-light refractive index of the first lens element material;
vd denotes the d-ray abbe constant of the first lens element material.
Preferably, the second lens element satisfies the following conditional formula: nd is more than or equal to 1.56, and Vd is more than or equal to 47.575;
wherein,
nd denotes the d-light refractive index of the second lens element material;
vd denotes the d-ray abbe constant of the second lens element material.
Preferably, the distance TTL between the outermost point of the object side of the first lens element and the image plane of the optical filter is greater than or equal to 17.60 mm.
Preferably, a ratio of radii of curvature of the mirror surface of the first lens element on the object side and the image side is 4: 1.
Preferably, the first lens element, the second lens element, the third lens element, the fourth lens element, the fifth lens element and the sixth lens element are all glass lens elements.
Compared with the prior art, the utility model discloses an effective effect is: the utility model discloses an optical lens is constituteed to six lenses, and the curvature radius of first lens element, second lens element and third lens element is positive value to can effectively rectify the aberration among the optical system, and guarantee the broad angle of vision in the condition of control lens cone length, reduce the distortion factor, optical characteristic is good.
Drawings
Fig. 1 is a schematic structural view of the present invention; the leftmost end in the figure is the object side, and the rightmost end is the image side;
fig. 2 is a light path diagram of the present invention;
FIG. 3 is a graph of chromatic aberration;
FIG. 4 is a graph of astigmatism;
FIG. 5 is a distortion plot;
FIG. 6 is a graph of MTF;
the reference numerals in the drawings denote: l1, first lens element; l2, second lens element; l3, third lens element; l4, fourth lens element; l5, fifth lens element; l6, sixth lens element; IR, optical filters;
Detailed Description
The present invention will be further described with reference to the accompanying drawings. Embodiments of the present invention include, but are not limited to, the following examples.
As shown in fig. 1 and fig. 2, the overall focal length of the high-definition large-aperture vehicle recording photographing lens is F ═ 2.5mm, the aperture value is F/NO ═ 1.8, the field angle is 2 ω ═ 102 °, and the total lens length TTL is 17.6 mm; the mirror surfaces are numbered in order from the object side, the mirror surface curvature radii of a first lens element L1 are R1 and R2, the mirror surface curvature radius of a second lens element L2 is R3 and R4, the mirror surface curvature radius of a third lens element L3 is R5 and R6, the aperture is R7, the mirror surface curvature radius of a fourth lens element L4 is R8 and R9, the mirror surface curvature radius of a fifth lens element L5 is R10, the mirror surface curvature radius of a sixth lens element L6 is R11 and R12, and the mirror surface of a color filter IR is R13 and R14, wherein the focal length value F1 of the first lens element L1 is-4.722752 mm; a focal length value F2 ═ 8.830156mm of the second lens element L2; the focal F3 of the third lens element L3 is +67.588060 mm; a focal length value F4 of the fourth lens element L4 ═ 3.650526 mm; a focal length value F5 of the fifth lens element L5 ═ 2.0513129 mm; the sixth lens element L6 has a focal length value F6 ═ 6.244463mm, and a focal length ratio of about: -1: -2: +12:+0.8: +0.8: -1.2.
As shown in table one, recording the optical parameters of the photographing lens for high-definition large-aperture driving;
watch 1
As can be seen from Table I, the ratio of the radii of curvature of the object-side and image-side mirrors of the first lens element L1 is about 4:1, and the first lens element L1 satisfies d-optical refractive index Nd ≧ 1.83, d-optical Abbe constant Vd ≧ 42.80, and the second lens element L2 satisfies d-optical refractive index Nd ≧ 1.56, and d-optical Abbe constant Vd ≧ 47.575.
The optical performance curve chart of the high-definition large-aperture driving recording photographic lens can be obtained according to the data. As shown in fig. 3 to 6, wherein fig. 3 is a color difference graph (also called spherical aberration graph) expressed by the wavelength of the common three color lights F, d and C in mm; FIG. 4 is a graph of astigmatism, expressed in nm, as the wavelength of three colors of light, commonly used F, d.C; FIG. 5 is a distortion plot showing distortion magnitude values in% for different angles of view; fig. 6 is an MTF graph representing the integrated resolution level of an optical system.
As can be seen from fig. 1 to 6, the high-definition large-aperture vehicle-recording photographing lens has a wide angle diagonal of 102 degrees and a low distortion degree, can effectively correct aberrations in an optical system, has optical distortion of-20.3 percent, reduces the distortion degree, has a total lens length TTL of 17.60mm, can meet the lens requirement of 500 ten thousand pixel levels, and can meet the special application requirement of the lens.
The above is the embodiment of the present invention. The above embodiments and the specific parameters in the embodiments are only for the purpose of clearly expressing the verification process of the utility model, and are not used to limit the patent protection scope of the present invention, the patent protection scope of the present invention is still subject to the claims, all the structural changes equivalent to the contents of the description and the drawings of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. Big light ring driving of high definition record camera lens, including the shell, its characterized in that: a first lens element (L1), a second lens element (L2), a third lens element (L3), a fourth lens element (L4), a fifth lens element (L5), a sixth lens element (L6), and a filter (IR) are provided in this order from the object side to the image side in the housing;
wherein,
the first lens element (L1) is a meniscus lens having a negative power and being convex to the object side;
the second lens element (L2) is a meniscus lens having a negative power and convex to the image side;
the third lens element (L3) is a double meniscus lens with a positive optical power;
the fourth lens element (L4) is a biconvex optic having a positive optical power;
the fifth lens element (L5) is a biconvex lens having a positive optical power;
the sixth lens element (L6) is a meniscus lens having a negative power and being concave toward the object side;
a diaphragm hole is further arranged between the third lens element (L3) and the fourth lens element (L4), and the curvature radiuses of the first lens element (L1), the second lens element (L2) and the third lens element (L3) are all positive values.
2. The high-definition large-aperture driving recording photographic lens as claimed in claim 1, wherein: the focal length ratio of the first lens element (L1), the second lens element (L2), the third lens element (L3), the fourth lens element (L4), the fifth lens element (L5) and the sixth lens element (L6) is: -1: -2: +12: +0.8: +0.8: -1.2.
3. The high-definition large-aperture driving recording photographic lens as claimed in claim 1, wherein: the first lens element (L1) satisfies the following conditional formula: nd is more than or equal to 1.83, and Vd is more than or equal to 42.80;
wherein,
nd denotes the d-light refractive index of the material of the first lens element (L1);
vd denotes the d-ray abbe constant of the material of the first lens element (L1).
4. The high-definition large-aperture driving recording photographic lens as claimed in claim 1, wherein: the second lens element (L2) satisfies the following conditional formula: nd is more than or equal to 1.56, and Vd is more than or equal to 47.575;
wherein,
nd denotes the d-light refractive index of the material of the second lens element (L2);
vd denotes the d-ray abbe constant of the material of the second lens element (L2).
5. The high-definition large-aperture driving recording photographic lens according to any one of claims 1 to 4, characterized in that: the distance TTL between the outermost point of the object side of the first lens element (L1) and the imaging surface of the optical filter (IR) is more than or equal to 17.60 mm.
6. The high-definition large-aperture driving recording photographic lens according to any one of claims 1 to 4, characterized in that: the ratio of the radii of curvature of the object-side and image-side mirrors of the first lens element (L1) is 4: 1.
7. The high-definition large-aperture driving recording photographic lens according to any one of claims 1 to 4, characterized in that: the first lens element (L1), the second lens element (L2), the third lens element (L3), the fourth lens element (L4), the fifth lens element (L5), and the sixth lens element (L6) are all glass lens elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621351884.6U CN206311832U (en) | 2016-12-10 | 2016-12-10 | High definition large aperture driving recording phtographic lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621351884.6U CN206311832U (en) | 2016-12-10 | 2016-12-10 | High definition large aperture driving recording phtographic lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206311832U true CN206311832U (en) | 2017-07-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621351884.6U Expired - Fee Related CN206311832U (en) | 2016-12-10 | 2016-12-10 | High definition large aperture driving recording phtographic lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206311832U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110967809A (en) * | 2018-09-28 | 2020-04-07 | 三星电机株式会社 | Optical imaging system and camera module |
-
2016
- 2016-12-10 CN CN201621351884.6U patent/CN206311832U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110967809A (en) * | 2018-09-28 | 2020-04-07 | 三星电机株式会社 | Optical imaging system and camera module |
| US11360285B2 (en) | 2018-09-28 | 2022-06-14 | Samsung Electro-Mechanics Co., Ltd. | Optical imaging system and camera module |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170707 Termination date: 20201210 |