CN205157870U - Clear tight shot of superelevation - Google Patents
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- CN205157870U CN205157870U CN201520842350.2U CN201520842350U CN205157870U CN 205157870 U CN205157870 U CN 205157870U CN 201520842350 U CN201520842350 U CN 201520842350U CN 205157870 U CN205157870 U CN 205157870U
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Abstract
The utility model belongs to the technical field of the camera lens, especially, relate to a clear tight shot of superelevation, include the first lens of arranging in proper order from the object space to the image space, the second lens, the third lens, the fourth lens, the 5th lens, VI lenses, the 7th lens, the 8th lens and the 9th lens, first lens are convex -concave negative power lens, the second lens are biconcave negative power lens, the third lens are convex -concave negative power lens, the fourth lens are biconvex positive focal power lens, the 5th lens are biconvex positive focal power lens, VI lenses is biconvex positive focal power lens, the 7th lens are biconcave negative power lens, the 8th lens are plano -convex positive focal power lens, the 9th lens are biconvex positive focal power lens, the utility model discloses maximum angle exceedes 120, and the biggest image planes are greater than 12.3, and its visible light resolution ratio exceedes eight megapixel, and infrared resolution ratio reaches more than seven megapixel, can satisfy 4K's requirement completely, possesses good market prospect.
Description
Technical field
The utility model belongs to lens technology field, particularly relates to a kind of ultra high-definition tight shot.
Background technology
At safety-security area, traditional high definition concept refers generally to 1080P resolution, and in recent years due to the develop rapidly of electronics technology, 4K ultra high-definition concept progresses into the visual field of people.So-called 4K, as the term suggests be exactly 4 times to the resolution of 1080P, its physical picture element is more than 8,000,000.The imaging system of such super-resolution degree will bring revolutionary change to safety monitoring.
But the resolution of lens that at present safety-security area is common is only about two mega pixels, slightly higher only five mega pixels, far do not reach the requirement of 4K.
In view of this, necessaryly provide a kind of ultra high-definition (4K) large image planes wide-angle tight shot, its maximum angle is more than 120 °, maximum image planes are greater than 1/2.3, its visible ray resolution is more than eight mega pixels, infrared resolution rate reaches more than seven mega pixels, can meet the requirement of 4K completely, possesses good market outlook.
Utility model content
The purpose of this utility model is: for the deficiencies in the prior art, and provide a kind of ultra high-definition (4K) large image planes wide-angle tight shot, its maximum angle is more than 120 °, maximum image planes are greater than 1/2.3, its visible ray resolution is more than eight mega pixels, infrared resolution rate reaches more than seven mega pixels, can meet the requirement of 4K completely, possesses good market outlook.
In order to achieve the above object, the utility model adopts following technical scheme:
A kind of ultra high-definition tight shot, comprise the first lens be arranged in order from the object side to the image side, second lens, 3rd lens, 4th lens, 5th lens, 6th lens, 7th lens, 8th lens and the 9th lens, described first lens are convex-concave negative-power lenses, described second lens are concave-concave negative-power lenses, described 3rd lens are convex-concave negative-power lenses, described 4th lens are biconvex positive power lens, described 5th lens are biconvex positive power lens, described 6th lens are biconvex positive power lens, described 7th lens are concave-concave negative-power lenses, described 8th lens are plano-convex positive power lens, described 9th lens are biconvex positive power lens,
Described first lens meet the following conditions to the ratio of the described focal length of the 9th lens and the focal length of whole camera lens:
1.0<|f1/f|<1.9；
1.0<|f2/f|<3.0；
2.1<|f3/f|<3.6；
0.9<|f4/f|<1.7；
1.8<|f5/f|<3.2；
0.5<|f6/f|<1.4；
0.6<|f7/f|<1.4；
1.5<|f8/f|<2.9；
1.7<|f9/f|<3.3；
Wherein, f is the focal length of whole camera lens; F1 is the focal length of described first lens, f2 is the focal length of described second lens, f3 is the focal length of described 3rd lens, f4 is the focal length of described 4th lens, f5 is the focal length of described 5th lens, and f6 is the focal length of described 6th lens, and f7 is the focal length of described 7th lens, f8 is the focal length of described 8th lens, and f9 is the focal length of described 9th lens.
Relative to prior art, the utility model uses seven group of nine sheet glass spherical lens, the pixel that visible ray is greater than 8,000,000 can be realized, the relative aperture of F1.8, maximum angle more than 120 ° and maximum image planes be greater than the index such as 1/2.3, good imaging quality, and make the infrared resolution that also can reach seven mega pixels under the prerequisite again do not focused on, even if clear bright monitored picture also can be realized at night under low-light (level), and possess temperature compensation function, use under the environment of-30 DEG C ~ 80 DEG C and also can not run Jiao, that is, the utility model possesses day and night with burnt function, namely can to infrared light blur-free imaging without the need to focusing when visible ray becomes sharply defined image, improve the image quality of camera lens, as can be seen here, the utility model can meet the requirement of 4K completely, possess good market outlook.
One as the utility model ultra high-definition tight shot is improved, and described first lens meet the following conditions to the focal length of described 9th lens and refractive index:
| -7.984≤f1≤-6.011 | 1.5≤n1≤1.75 |
| -10.95≤f2≤-8.26 | 1.5≤n2≤1.75 |
| -14.22≤f3≤-11.02 | 1.5≤n3≤1.75 |
| 4.87≤f4≤6.32 | 1.65≤n4≤1.9 |
| 10.26≤f5≤13.21 | 1.6≤n5≤1.85 |
| 4.33≤f6≤5.87 | 1.5≤n6≤1.7 |
| -4.35≤f7≤-3.16 | 1.66≤n7≤1.9 |
| 8.98≤f8≤12.36 | 1.55≤n8≤1.8 |
| 11.55≤f9≤14.12 | 1.65≤n9≤1.95 |
In upper table, " f " is focal length, and " n " is refractive index;
Wherein, f1 to f9 corresponds respectively to the focal length of the first lens to the 9th lens; N1 to n9 corresponds respectively to the refractive index of the first lens to the 9th lens.
One as the utility model ultra high-definition tight shot is improved, and described first lens to described 9th lens are glass spherical lens.
One as the utility model ultra high-definition tight shot is improved, and described first lens and described second lens are near assembling, and described second lens and described 3rd lens are near assembling, and described 3rd lens and described 4th lens are bonded by optical cement.
One as the utility model ultra high-definition tight shot is improved, described 4th lens and described 5th lens are by the first spacer ring close-fitting, described 5th lens and described 6th lens are by the second spacer ring close-fitting, and described 6th lens and described 7th lens are bonded by optical cement.
One as the utility model ultra high-definition tight shot is improved, and described 7th lens and described 8th lens are near assembling, and described 8th lens and described 9th lens are by the 3rd spacer ring close-fitting.
One as the utility model ultra high-definition tight shot is improved, and is provided with diaphragm between described 5th lens and described 6th lens.
In a word, the utility model compared with prior art has following advantage:
First, the utility model accomplished visible ray and infrared light confocal, under the prerequisite of the lens combination proposed according to the utility model, combination of materials, camera lens of the present utility model to reach with the position of the imaging of infrared light (850nm) the position of visible ray (400nm ~ 650nm) imaging and overlaps.
The second, the utility model has temperature compensation function, and under the prerequisite of the lens combination proposed according to the utility model, camera lens of the present utility model ensure that the optimum resolution image space of-30 DEG C ~ 80 DEG C of temperature range inner lenses is constant.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below with reference to specific embodiment, the utility model and beneficial effect thereof are described in further detail, but embodiment of the present utility model is not limited thereto.
As shown in Figure 1, a kind of ultra high-definition tight shot that the utility model provides, comprise the first lens 1 be arranged in order from the object side to the image side, second lens 2, 3rd lens 3, 4th lens 4, 5th lens 5, 6th lens 6, 7th lens 7, 8th lens 8 and the 9th lens 9, first lens 1 are convex-concave negative-power lenses, second lens 2 are concave-concave negative-power lenses, 3rd lens 3 are convex-concave negative-power lenses, 4th lens 4 are biconvex positive power lens, 5th lens 5 are biconvex positive power lens, 6th lens 6 are biconvex positive power lens, 7th lens 7 are concave-concave negative-power lenses, 8th lens 8 are plano-convex positive power lens, 9th lens 9 are biconvex positive power lens,
First lens 1 meet the following conditions to the ratio of the focal length of the focal length of the 9th lens 9 and whole camera lens:
1.0<|f1/f|<1.9；
1.0<|f2/f|<3.0；
2.1<|f3/f|<3.6；
0.9<|f4/f|<1.7；
1.8<|f5/f|<3.2；
0.5<|f6/f|<1.4；
0.6<|f7/f|<1.4；
1.5<|f8/f|<2.9；
1.7<|f9/f|<3.3；
Wherein, f is the focal length of whole camera lens; F1 is the focal length of the first lens 1, f2 is the focal length of the second lens 2, f3 is the focal length of the 3rd lens 3, f4 is the focal length of the 4th lens 4, f5 is the focal length of the 5th lens 5, and f6 is the focal length of the 6th lens 6, and f7 is the focal length of the 7th lens 7, f8 is the focal length of the 8th lens 8, and f9 is the focal length of the 9th lens 9.
First lens 1 meet the following conditions to the focal length of the 9th lens 9 and refractive index:
| -7.984≤f1≤-6.011 | 1.5≤n1≤1.75 |
| -10.95≤f2≤-8.26 | 1.5≤n2≤1.75 |
| -14.22≤f3≤-11.02 | 1.5≤n3≤1.75 |
| 4.87≤f4≤6.32 | 1.65≤n4≤1.9 |
| 10.26≤f5≤13.21 | 1.6≤n5≤1.85 |
| 4.33≤f6≤5.87 | 1.5≤n6≤1.7 |
| -4.35≤f7≤-3.16 | 1.66≤n7≤1.9 |
| 8.98≤f8≤12.36 | 1.55≤n8≤1.8 |
| 11.55≤f9≤14.12 | 1.65≤n9≤1.95 |
In upper table, " f " is focal length, and " n " is refractive index;
Wherein, f1 to f9 corresponds respectively to the focal length of the first lens 1 to the 9th lens 9; N1 to n9 corresponds respectively to the refractive index of the first lens 1 to the 9th lens 9.
First lens 1 are glass spherical lens to the 9th lens 9.
First lens 1 and the second lens 2 are near assembling, and the second lens 2 and the 3rd lens 3 are near assembling, and the 3rd lens 3 and the 4th lens 4 are bonded by optical cement.
4th lens 4 and the 5th lens 5 are by the first spacer ring close-fitting, and the 5th lens 5 and the 6th lens 6 are by the second spacer ring close-fitting, and the 6th lens 6 and the 7th lens 7 are bonded by optical cement.
7th lens 7 and the 8th lens 8 are near assembling, and the 8th lens 8 and the 9th lens 9 are by the 3rd spacer ring close-fitting.
Diaphragm is provided with between 5th lens 5 and the 6th lens 6.
The utility model uses seven group of nine sheet glass spherical lens, the pixel that visible ray is greater than 8,000,000 can be realized, the relative aperture of F1.8, maximum angle more than 120 ° and maximum image planes be greater than the index such as 1/2.3, good imaging quality, and make the infrared resolution that also can reach seven mega pixels under the prerequisite again do not focused on, even if clear bright monitored picture also can be realized at night under low-light (level), and possess temperature compensation function, use under the environment of-30 DEG C ~ 80 DEG C and also can not run Jiao, that is, the utility model possesses day and night with burnt function, namely can to infrared light blur-free imaging without the need to focusing when visible ray becomes sharply defined image.As can be seen here, the utility model can meet the requirement of 4K completely, possesses good market outlook.
Embodiment 1
Nine lens of this camera lens face type in totally ten eight faces, radius-of-curvature, lens thickness, lens pitch and lens index meet the following conditions respectively:
Table 1: the physical parameter of nine lens.
| Face sequence number | Face type | R | D | nd |
| 1 | Sphere | 89.502 | 0.65 | 1.65 |
| 2 | Sphere | 3.512 | 1.9 | |
| 3 | Sphere | -9.554 | 0.6 | 1.59 |
| 4 | Sphere | 9.851 | 0.3 | |
| 5 | Sphere | 23.223 | 0.6 | 1.6 |
| 6 | Sphere | 5.897 | 2.01 | 1.77 |
| 7 | Sphere | 5.897 | 2.01 | 1.77 |
| 8 | Sphere | -22.112 | 0.29 | |
| 9 | Sphere | 10.992 | 1.6 | 1.72 |
| 10 | Sphere | -39.101 | 2.8 | |
| Diaphragm | Plane | PL | 0.2 | |
| 11 | Sphere | 26.225 | 1.8 | 1.65 |
| 12 | Sphere | -3.752 | 0.65 | 1.85 |
| 13 | Sphere | -3.752 | 0.65 | 1.85 |
| 14 | Sphere | 20.332 | 0.15 | |
| 15 | Sphere | Plane | 2 | 1.73 |
| 16 | Sphere | -7.112 | 0.1 | |
| 17 | Sphere | 18.563 | 1.6 | 1.85 |
| 18 | Sphere | -45.696 |
In upper table, " R " is radius-of-curvature, "-" number represents that direction is negative, " PL " represents plane, upper table the same face sequence number existing refractive index data n, have again data D, data D represents the thickness at this lens axial line place, the same face sequence number only has data D and does not have refractive index data n, and data D represents the spacing of these lens to next lens face.Wherein, 1-18 is the face sequence number be arranged in order from the object side to the image side.
In a word, the utility model compared with prior art has following advantage:
First, the utility model accomplished visible ray and infrared light confocal, under the prerequisite of the lens combination proposed according to the utility model, camera lens of the present utility model to reach with the position of the imaging of infrared light (850nm) the position of visible ray (400nm ~ 650nm) imaging and overlaps.
The second, the utility model has temperature compensation function, and under the prerequisite of the lens combination proposed according to the utility model, camera lens of the present utility model ensure that the optimum resolution image space of-30 DEG C ~ 80 DEG C of temperature range inner lenses is constant.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also carry out suitable change and amendment to above-mentioned embodiment.Therefore, the utility model is not limited to embodiment disclosed and described above, also should fall in the protection domain of claim of the present utility model modifications and changes more of the present utility model.In addition, although employ some specific terms in this instructions, these terms just for convenience of description, do not form any restriction to the utility model.
Claims (7)
1. a ultra high-definition tight shot, comprise the first lens be arranged in order from the object side to the image side, second lens, 3rd lens, 4th lens, 5th lens, 6th lens, 7th lens, 8th lens and the 9th lens, it is characterized in that: described first lens are convex-concave negative-power lenses, described second lens are concave-concave negative-power lenses, described 3rd lens are convex-concave negative-power lenses, described 4th lens are biconvex positive power lens, described 5th lens are biconvex positive power lens, described 6th lens are biconvex positive power lens, described 7th lens are concave-concave negative-power lenses, described 8th lens are plano-convex positive power lens, described 9th lens are biconvex positive power lens,
Described first lens meet the following conditions to the ratio of the described focal length of the 9th lens and the focal length of whole camera lens:
1.0<|f1/f|<1.9；
1.0<|f2/f|<3.0；
2.1<|f3/f|<3.6；
0.9<|f4/f|<1.7；
1.8<|f5/f|<3.2；
0.5<|f6/f|<1.4；
0.6<|f7/f|<1.4；
1.5<|f8/f|<2.9；
1.7<|f9/f|<3.3；
Wherein, f is the focal length of whole camera lens; F1 is the focal length of described first lens, f2 is the focal length of described second lens, f3 is the focal length of described 3rd lens, f4 is the focal length of described 4th lens, f5 is the focal length of described 5th lens, and f6 is the focal length of described 6th lens, and f7 is the focal length of described 7th lens, f8 is the focal length of described 8th lens, and f9 is the focal length of described 9th lens.
2. ultra high-definition tight shot according to claim 1, is characterized in that: described first lens meet the following conditions to the focal length of described 9th lens and refractive index:
In upper table, " f " is focal length, and " n " is refractive index;
Wherein, f1 to f9 corresponds respectively to the focal length of the first lens to the 9th lens; N1 to n9 corresponds respectively to the refractive index of the first lens to the 9th lens.
3. ultra high-definition tight shot according to claim 1, is characterized in that: described first lens to described 9th lens are glass spherical lens.
4. ultra high-definition tight shot according to claim 1, it is characterized in that: described first lens and described second lens are near assembling, described second lens and described 3rd lens are near assembling, and described 3rd lens and described 4th lens are bonded by optical cement.
5. ultra high-definition tight shot according to claim 4, it is characterized in that: described 4th lens and described 5th lens are by the first spacer ring close-fitting, described 5th lens and described 6th lens are by the second spacer ring close-fitting, and described 6th lens and described 7th lens are bonded by optical cement.
6. ultra high-definition tight shot according to claim 5, is characterized in that: described 7th lens and described 8th lens are near assembling, and described 8th lens and described 9th lens are by the 3rd spacer ring close-fitting.
7. ultra high-definition tight shot according to claim 1, is characterized in that: be provided with diaphragm between described 5th lens and described 6th lens.
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| CN201520842350.2U CN205157870U (en) | 2015-10-28 | 2015-10-28 | Clear tight shot of superelevation |
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|---|---|---|---|
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182507A (en) * | 2015-10-28 | 2015-12-23 | 东莞市宇瞳光学科技有限公司 | Ultrahigh-definition large-image surface and wide-angle prime lens |
| CN107045183A (en) * | 2017-05-26 | 2017-08-15 | 东莞市宇瞳光学科技股份有限公司 | One kind is without the wide working distance 6MP machine visual lens of thermalization |
| CN107688228A (en) * | 2017-11-01 | 2018-02-13 | 广东奥普特科技股份有限公司 | 4mm focusing machine visual lens |
| CN107957617A (en) * | 2017-12-14 | 2018-04-24 | 广东奥普特科技股份有限公司 | 8mm focusing machine visual lens |
| WO2021128386A1 (en) * | 2019-12-28 | 2021-07-01 | 诚瑞光学(常州)股份有限公司 | Camera optical lens |
| US11187874B2 (en) * | 2018-08-28 | 2021-11-30 | Sintai Optical (Shenzhen) Co., Ltd. | Wide-angle lens assembly |
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2015
- 2015-10-28 CN CN201520842350.2U patent/CN205157870U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182507A (en) * | 2015-10-28 | 2015-12-23 | 东莞市宇瞳光学科技有限公司 | Ultrahigh-definition large-image surface and wide-angle prime lens |
| CN107045183A (en) * | 2017-05-26 | 2017-08-15 | 东莞市宇瞳光学科技股份有限公司 | One kind is without the wide working distance 6MP machine visual lens of thermalization |
| CN107045183B (en) * | 2017-05-26 | 2023-05-16 | 东莞市宇瞳光学科技股份有限公司 | Athermalized wide working distance 6MP machine vision lens |
| CN107688228A (en) * | 2017-11-01 | 2018-02-13 | 广东奥普特科技股份有限公司 | 4mm focusing machine visual lens |
| CN107688228B (en) * | 2017-11-01 | 2023-10-03 | 广东奥普特科技股份有限公司 | 4mm fixed focus machine vision lens |
| CN107957617A (en) * | 2017-12-14 | 2018-04-24 | 广东奥普特科技股份有限公司 | 8mm focusing machine visual lens |
| CN107957617B (en) * | 2017-12-14 | 2023-10-10 | 广东奥普特科技股份有限公司 | 8mm fixed focus machine vision lens |
| US11187874B2 (en) * | 2018-08-28 | 2021-11-30 | Sintai Optical (Shenzhen) Co., Ltd. | Wide-angle lens assembly |
| WO2021128386A1 (en) * | 2019-12-28 | 2021-07-01 | 诚瑞光学(常州)股份有限公司 | Camera optical lens |
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