CN206020792U - Day and night confocal wide-angle low-distortion high-pixel optical system and lens for its application - Google Patents
Day and night confocal wide-angle low-distortion high-pixel optical system and lens for its application Download PDFInfo
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Abstract
本实用新型实施例公开了一种日夜共焦广角低畸变高像素光学系统，沿光轴从物面到像面依次至少包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜、以及第七透镜。另一方面，本实用新型实施例还提供了一种镜头。本实用新型实施例，应用于智能监控、行车记录仪等设备上，其主要由7枚透镜构成，透镜枚数少，结构简单；采用不同透镜相互组合，具有超广角、低畸变、高像素、以及日夜共焦等良好光学性能。
The embodiment of the utility model discloses a day-night confocal wide-angle low-distortion high-pixel optical system, which includes at least: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens in sequence from the object plane to the image plane along the optical axis. On the other hand, the embodiment of the utility model also provides a lens. The embodiment of the utility model is applied to intelligent monitoring, driving recorders and other equipment, which is mainly composed of 7 lenses, with a small number of lenses and a simple structure; different lenses are combined with each other, and have good optical properties such as ultra-wide angle, low distortion, high pixels, and day-night confocal.
Description
技术领域：Technical field:
本实用新型涉及一种光学系统及其应用的镜头，尤其是一种应用于智能监控、行车记录仪等设备上的日夜共焦广角低畸变高像素光学系统及其应用的镜头。The utility model relates to an optical system and a lens applied thereto, in particular to a day and night confocal wide-angle low-distortion high-pixel optical system applied to equipment such as intelligent monitoring and driving recorders and the lens applied thereto.
背景技术：Background technique:
现有光学系统或镜头，尤其是应用于智能监控、行车记录仪等设备上的光学系统或镜头，存在结构复杂的缺陷。Existing optical systems or lenses, especially optical systems or lenses applied to equipment such as intelligent monitoring and driving recorders, have defects of complex structures.
发明内容：Invention content:
为克服现有光学系统或镜头结构复杂的问题，本实用新型实施例一方面提供了一种日夜共焦广角低畸变高像素光学系统。In order to overcome the problem of complex structure of the existing optical system or lens, the embodiment of the utility model provides a day and night confocal wide-angle low distortion high pixel optical system on the one hand.
日夜共焦广角低畸变高像素光学系统，沿光轴从物面到像面依次至少包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜、以及第七透镜；The day and night confocal wide-angle low-distortion high-pixel optical system includes at least the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, and the first lens in order from the object plane to the image plane along the optical axis. seven lenses;
所述第一透镜的物面侧为凸面，像面侧为凹面，其光焦度为负；The object plane side of the first lens is a convex surface, the image plane side is a concave surface, and its focal power is negative;
所述第二透镜的物面侧为平面，像面侧为凸面，其光焦度为正；The object plane side of the second lens is a plane, the image plane side is a convex surface, and its refractive power is positive;
所述第三透镜的物面侧为凹面，像面侧为凹面，其光焦度为负；The object plane side of the third lens is concave, the image plane side is concave, and its focal power is negative;
所述第四透镜的物面侧为凸面，像面侧为凸面，其光焦度为正；The object plane side of the fourth lens is convex, the image plane side is convex, and its refractive power is positive;
所述第五透镜的物面侧为凹面，像面侧为凸面，其光焦度为正；The object plane side of the fifth lens is concave, the image plane side is convex, and its focal power is positive;
所述第六透镜的物面侧为凹面，像面侧为凸面，其光焦度为负；The object plane side of the sixth lens is concave, the image plane side is convex, and its focal power is negative;
所述第七透镜的物面侧为凸面，像面侧为凸面，其光焦度为正。The object plane side of the seventh lens is convex, the image plane side is convex, and its refractive power is positive.
另一方面，本实用新型实施例还提供了一种镜头。On the other hand, the embodiment of the utility model also provides a lens.
一种镜头，镜头内安装有上述所述的日夜共焦广角低畸变高像素光学系统。A lens, the above-mentioned day and night confocal wide-angle low distortion high pixel optical system is installed in the lens.
本实用新型实施例，应用于智能监控、行车记录仪等设备上，其主要由7枚透镜构成，透镜枚数少，结构简单；采用不同透镜相互组合，具有超广角、低畸变、高像素、以及日夜共焦等良好光学性能。The embodiment of the utility model is applied to equipment such as intelligent monitoring and driving recorder. It is mainly composed of 7 lenses, the number of lenses is small, and the structure is simple; different lenses are combined with each other to have ultra-wide angle, low distortion, high pixels, and Good optical performance such as confocal day and night.
附图说明：Description of drawings:
为了更清楚地说明本实用新型实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some implementations of the present invention. For example, those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative efforts.
图1为本实用新型的光学系统或镜头的结构示意图；Fig. 1 is the structural representation of optical system or camera lens of the present utility model;
图2为本实用新型的光学系统或镜头的场曲、畸变曲线图；Fig. 2 is the field curvature of the optical system of the present invention or lens, distortion curve;
图3为本实用新型的光学系统或镜头的色差图；Fig. 3 is the chromatic aberration figure of optical system or lens of the present utility model;
图4为本实用新型的光学系统或镜头在可见光下的MTF曲线图；Fig. 4 is the MTF curve diagram of the optical system of the present invention or lens under visible light;
图5为本实用新型的光学系统或镜头在红外光下的MTF曲线图；Fig. 5 is the MTF curve diagram of optical system of the present invention or lens under infrared light;
图6为本实用新型的光学系统或镜头的相对照度图。FIG. 6 is a relative illuminance diagram of the optical system or lens of the present invention.
具体实施方式：detailed description:
为了使本实用新型所解决的技术问题、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本实用新型进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本实用新型，并不用于限定本实用新型。In order to make the technical problems, technical solutions and beneficial effects solved by the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.
如图1所示，日夜共焦广角低畸变高像素光学系统，沿光轴从物面到像面依次至少包括：第一透镜1、第二透镜2、第三透镜3、第四透镜4、第五透镜5、第六透镜6、以及第七透镜7。As shown in Figure 1, the day and night confocal wide-angle low-distortion high-pixel optical system, along the optical axis from the object plane to the image plane at least includes: a first lens 1, a second lens 2, a third lens 3, a fourth lens 4, The fifth lens 5 , the sixth lens 6 , and the seventh lens 7 .
所述第一透镜1的物面侧为凸面，像面侧为凹面，其光焦度为负；The object plane side of the first lens 1 is a convex surface, the image plane side is a concave surface, and its focal power is negative;
所述第二透镜2的物面侧为平面，像面侧为凸面，其光焦度为正；The object plane side of the second lens 2 is a plane, the image plane side is a convex surface, and its refractive power is positive;
所述第三透镜3的物面侧为凹面，像面侧为凹面，其光焦度为负；The object plane side of the third lens 3 is a concave surface, the image plane side is a concave surface, and its refractive power is negative;
所述第四透镜4的物面侧为凸面，像面侧为凸面，其光焦度为正；The object plane side of the fourth lens 4 is a convex surface, the image plane side is a convex surface, and its refractive power is positive;
所述第五透镜5的物面侧为凹面，像面侧为凸面，其光焦度为正；The object plane side of the fifth lens 5 is concave, the image plane side is convex, and its refractive power is positive;
所述第六透镜6的物面侧为凹面，像面侧为凸面，其光焦度为负；The object plane side of the sixth lens 6 is concave, the image plane side is convex, and its focal power is negative;
所述第七透镜7的物面侧为凸面，像面侧为凸面，其光焦度为正。The object plane side of the seventh lens 7 is convex, the image plane side is convex, and its refractive power is positive.
本实用新型实施例，应用于智能监控、行车记录仪等设备上，其主要由7枚透镜构成，透镜枚数少，结构简单；采用不同透镜相互组合，具有超广角、低畸变、高像素、以及日夜共焦等良好光学性能。The embodiment of the utility model is applied to equipment such as intelligent monitoring and driving recorder. It is mainly composed of 7 lenses, the number of lenses is small, and the structure is simple; different lenses are combined with each other to have ultra-wide angle, low distortion, high pixels, and Good optical performance such as confocal day and night.
进一步地，第一透镜1采用玻璃材料制成，其焦距f1满足：-0.6<f/f1<-0.3，f为整个光学系统的焦距。结构简单，可保证良好的光学性能。Further, the first lens 1 is made of glass material, and its focal length f1 satisfies: -0.6<f/f1<-0.3, where f is the focal length of the entire optical system. The structure is simple and can guarantee good optical performance.
再进一步地，第二透镜2采用重镧火石玻璃材料制成，其材料折射率Nd2、材料阿贝常数Vd2、焦距f2满足：Nd2＞1.91，Vd2＜22，0<f/f2<0.3，f为整个光学系统的焦距。结构简单紧凑，可保证良好的光学性能。Furthermore, the second lens 2 is made of heavy lanthanum flint glass material, and its material refractive index Nd2, material Abbe constant Vd2, and focal length f2 satisfy: Nd2>1.91, Vd2<22, 0<f/f2<0.3, f is the focal length of the entire optical system. The structure is simple and compact, which can guarantee good optical performance.
又进一步地，第三透镜3采用轻冕玻璃材料制成，其材料折射率Nd3、材料阿贝常数Vd3满足：Nd3＜1.50，Vd3＞70。结构简单紧凑，可保证良好的光学性能。Still further, the third lens 3 is made of light crown glass material, the refractive index Nd3 of the material and the Abbe constant Vd3 of the material satisfy: Nd3<1.50, Vd3>70. The structure is simple and compact, which can guarantee good optical performance.
更进一步地，第四透镜4采用重镧火石玻璃材料制成，其材料折射率Nd4、材料阿贝常数Vd4、焦距f4满足：Nd4＞1.88，Vd4＜40，0.44<f/f4<0.67，f为整个光学系统的焦距。结构简单，可保证良好的光学性能。Furthermore, the fourth lens 4 is made of heavy lanthanum flint glass material, and its material refractive index Nd4, material Abbe constant Vd4, and focal length f4 satisfy: Nd4>1.88, Vd4<40, 0.44<f/f4<0.67, f is the focal length of the entire optical system. The structure is simple and can guarantee good optical performance.
进一步地，第五透镜5和第六透镜6均采用玻璃材料制成，其相互胶合形成组合透镜，组合透镜的焦距f56满足：0.1<f/f56<0.23，f为整个光学系统的焦距。结构简单紧凑，可保证良好的光学性能。Furthermore, the fifth lens 5 and the sixth lens 6 are both made of glass materials, and they are glued together to form a composite lens, the focal length f56 of the composite lens satisfies: 0.1<f/f56<0.23, f is the focal length of the entire optical system. The structure is simple and compact, which can guarantee good optical performance.
再进一步地，第七透镜7采用重镧火石玻璃材料制成，其材料折射率Nd7、材料阿贝常数Vd7、焦距f7满足：Nd7＞1.905，Vd7＜38，0.2mm<f/f7<0.31mm，f为整个光学系统的焦距。结构简单，可保证良好的光学性能。Furthermore, the seventh lens 7 is made of heavy lanthanum flint glass material, and its material refractive index Nd7, material Abbe constant Vd7, and focal length f7 satisfy: Nd7>1.905, Vd7<38, 0.2mm<f/f7<0.31mm , f is the focal length of the entire optical system. The structure is simple and can guarantee good optical performance.
又进一步地，光学系统的光阑10位于第四透镜4与第五透镜5之间，靠近第四透镜4侧。结构简单，用来调节光束的强度。Still further, the diaphragm 10 of the optical system is located between the fourth lens 4 and the fifth lens 5 , close to the fourth lens 4 side. The structure is simple, and it is used to adjust the intensity of the light beam.
第一透镜1至第七透镜7均为玻璃透镜，可保证良好的光学性能。The first lens 1 to the seventh lens 7 are all glass lenses, which can ensure good optical performance.
具体地，在本实施例中，本光学系统的焦距f为2.34mm，光阑指数FNo.为2.0，水平方向视场角2ω＝147°，对角方向视场角2ω＝181°。本光学系统的各项基本参数如下表所示：Specifically, in this embodiment, the focal length f of the optical system is 2.34mm, the aperture index FNo. is 2.0, the horizontal field angle 2ω=147°, and the diagonal field angle 2ω=181°. The basic parameters of the optical system are shown in the table below:
上表中，沿光轴从物面到像面，S1、S2对应为第一透镜1的两个表面；S3、S4对应为第二透镜2的两个表面；S5、S6对应为第三透镜3的两个表面；S7、S8对应为第四透镜4的两个表面；STO是光阑10所在位置；S9、S10对应为第五透镜5的两个表面；S10、S11对应为第六透镜6的两个表面；S12、S13对应为第七透镜7的两个表面；S14为滤光片8的一个表面。In the above table, from the object plane to the image plane along the optical axis, S1 and S2 correspond to the two surfaces of the first lens 1; S3 and S4 correspond to the two surfaces of the second lens 2; S5 and S6 correspond to the third lens The two surfaces of 3; S7 and S8 correspond to the two surfaces of the fourth lens 4; STO is the position of the diaphragm 10; S9 and S10 correspond to the two surfaces of the fifth lens 5; S10 and S11 correspond to the sixth lens The two surfaces of 6; S12 and S13 correspond to the two surfaces of the seventh lens 7; S14 is one surface of the optical filter 8.
从图2至图6中可以看出，本实施例中的光学系统具有超广角、低畸变、高像素、以及日夜共焦等良好光学性能。It can be seen from FIG. 2 to FIG. 6 that the optical system in this embodiment has good optical properties such as super wide angle, low distortion, high pixel, and day and night confocal.
一种镜头，镜头内安装有上述所述的日夜共焦广角低畸变高像素光学系统。A lens, the above-mentioned day and night confocal wide-angle low distortion high pixel optical system is installed in the lens.
如上所述是结合具体内容提供的一种或多种实施方式，并不认定本实用新型的具体实施只局限于这些说明。凡与本实用新型的方法、结构等近似、雷同，或是对于本实用新型构思前提下做出若干技术推演或替换，都应当视为本实用新型的保护范围。The foregoing is one or more implementations provided in conjunction with specific content, and it is not considered that the specific implementation of the present utility model is limited to these descriptions. Anything similar to or identical to the method and structure of the present utility model, or some technical deduction or replacement made on the premise of the concept of the present utility model, should be regarded as the protection scope of the utility model.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110456480A (en) * | 2019-08-02 | 2019-11-15 | 佛山科学技术学院 | A miniaturized high-pixel panoramic day and night confocal optical system |
| US11067777B2 (en) | 2017-11-02 | 2021-07-20 | Zhejiang Sunny Optical Co., Ltd | Optical imaging system |
| CN115220183A (en) * | 2022-06-17 | 2022-10-21 | 广东省三目汽车电子有限公司 | On-vehicle panorama camera of super wide angle and CMS system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11067777B2 (en) | 2017-11-02 | 2021-07-20 | Zhejiang Sunny Optical Co., Ltd | Optical imaging system |
| CN110456480A (en) * | 2019-08-02 | 2019-11-15 | 佛山科学技术学院 | A miniaturized high-pixel panoramic day and night confocal optical system |
| CN110456480B (en) * | 2019-08-02 | 2024-04-30 | 佛山科学技术学院 | Miniaturized high-pixel panoramic day-night confocal optical system |
| CN115220183A (en) * | 2022-06-17 | 2022-10-21 | 广东省三目汽车电子有限公司 | On-vehicle panorama camera of super wide angle and CMS system |
| CN115220183B (en) * | 2022-06-17 | 2023-11-21 | 广东省三目汽车电子有限公司 | Ultra-wide-angle vehicle-mounted panoramic camera and CMS system |
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Denomination of utility model: High pixel optical system of low distortion of confocal wide angle of day night and camera lens of using thereof Effective date of registration: 20190108 Granted publication date: 20170315 Pledgee: China Co. truction Bank Corp Zhongshan branch Pledgor: GUANGDONG HONGJING OPTOELECTRONIC TECHNOLOGY Inc. Registration number: 2019990000021 |
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Date of cancellation: 20220622 Granted publication date: 20170315 Pledgee: China Co. truction Bank Corp Zhongshan branch Pledgor: GUANGDONG HONGJING OPTOELECTRONIC TECHNOLOGY Inc. Registration number: 2019990000021 |