97results about How to "High relative illuminance" patented technology

The invention discloses an optical imaging lens, and the lens sequentially comprises a first lens, a second lens, a third lens and a fourth lens from the object space to the image space along an optical axis. The first lens has the negative focal power. The second lens has the positive focal power. At least one of the second lens and the fourth lens has the positive focal power. The central thickness CT2 of the second lens on the optical axis and the central thickness CT4 of the fourth lens on the optical axis meet a formula: CT2 / CT4<0.5.

The invention discloses an optical lens group. The optical lens group sequentially comprises from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens and a fifthlens. By designing the concave-convex configuration of the surfaces of the five lenses and controlling related parameters, the overall length of the optical lens group is shortened, the imaging quality is improved, and the optical lens group has good chromatic aberration correction and image bending capability.

The invention relates to a visual lens. The visual lens comprises a first lens group, a second lens group, a diaphragm and a third lens group which are sequentially arranged from an object side to animage side along an optical axis, and is characterized in that the first lens group form a fixed group, the second lens group, the diaphragm and the third lens group form a focusing group; the first lens group is a negative focal power lens group; the second lens group and the third lens group are positive focal power lens groups; the first lens group is formed by three lenses; the second lens group comprises at least three lenses; and the third lens group is formed by four lenses. The visual lens of the invention has the characteristics of high resolution, large view field angle, large aperture and short object distance.

The invention discloses an optical lens and an imaging device which comprises the optical lens. The optical lens comprises a first lens, a second lens, a third lens and a fourth lens in order from theobject side to the image side along an optical axis. The first lens is a meniscus lens with positive focal power or negative focal power. The second lens has positive focal power, and the object sideis a convex surface. The third lens has positive focal power, wherein the object side thereof is a concave surface, and the image side thereof is a convex surface. The fourth lens has negative focalpower, wherein the object side thereof is a convex surface, and the image side thereof is a concave surface. According to the optical lens provided by the invention, at least one of high effects suchas high resolution, miniaturization, good temperature performance, back focal length, small front end diameter and high contrast can be achieved.

The invention discloses an optical lens, comprising a first lens, a second lens and a third lens arranged coaxially. The surface of the first lens is a spherical surface; the surfaces of the second and the third lenses are non-spherical surfaces. The surfaces of the second and the third lenses meet the function (refer to the Figure): the optical lens satisfies the following relationship: 1.25<f / L<1.4, 0.5<f1 / f<0.8, f2<0 and 0.65<|f2 / f|<1, 1.3<f3 / f<1.6, in which f is the effective focus of the optical lens, f1 is the effective focus of the first lens, f2 is the effective focus of the second lens, f3 is the effective focus of the third lens and L is the total length of the optical lens with an air compensated distance. The optical lens of the invention has the advantages of good imaging quality, short total length, high illumination, large angle of field coverage, small emergence angle, minimum relative illumination over 50%, smart volume, light weight and nice optical performance.

The invention discloses optical lenses. The optical lenses may comprise a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens in order from an objectside to an image side along an optical axis; the first lens may have a positive refractive power, with an object side surface being a convex surface and an image-side surface being a concave surface;the second lens may have a negative refractive power, with an object side surface and an image side surface being concave surfaces; the third lens may have a positive refractive power, with an objectside surface and an image side surface being convex surfaces; the fourth lens may have a positive refractive power, with an object side surface being a concave surface and an image side surface beinga convex surface; the fifth lens may have a positive refractive power, with an object side surface and an image side surface being convex surfaces; the sixth lens may have a negative refractive power,with an object side surface being a convex surface and an image side surface being a concave surface; and the seventh lens may have a negative refractive power, with an object side surface being a concave surface. According to the optical lenses disclosed by the invention, at least one of the beneficial effects of miniaturization, high resolution, small caliber at a front end, high relative illumination and matching with a large-size chip can be implemented.

The invention provides a photographing optical lens assembly, an image capturing apparatus and an electronic device. The photographing optical lens assembly includes seven lens elements, the seven lens elements being, in order from an object side to an image side: 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 a seventh lens element. The third lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The fourth lens element has an image-side surface being concave in a paraxial region thereof. The sixth lens element with positive refractive power has an object-side surface being concave in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof. The seventh lens element has an image-side surface being concave in a paraxial region thereof and having at least one critical point in an off-axis region thereof.The object-side surface and the image-side surface of the seventh lens element are both aspheric surfaces. It is easy to realize the miniaturization of a camera module, improve the relative contrast of the periphery, effectively improve the manufacturability and maintain the imaging quality.

The invention relates to the technical field of lenses. The invention discloses an optical imaging lens. The optical imaging lens sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a diaphragm, a fifth lens, a sixth lens and a seventh lens from an object side to an image side along an optical axis, wherein the first lens is a convexo-concave lens with a negative refractive index; the second lens is a concave lens with the negative refractive index; the third lens is a convex lens with a positive refractive index; the fourth lens is a convexo-plane lens with the positive refractive index; the fifth lens is a convex lens with the positive refractive index; the sixth lens is a convexo-concave lens with the negative refractive index; and the seventh lens is a convex lens with the positive refractive index. The optical imaging lens has the advantages of being good in infrared confocal performance, high in resolution and small in color difference.

The invention discloses a low-distortion optical system and a lens, and the optical system comprises a first lens having positive focal power, a second lens having negative focal power and arranged at intervals relative to the first lens, a third lens, a diaphragm, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and a photosensitive chip which are sequentially arranged from an object side to an image side, wherein the third lens has negative focal power, and the third lens and the second lens are arranged at intervals; the diaphragm and the third lens are arranged at intervals and the diaphragm is used for limiting the aperture of the light beam; the fourth lens has positive focal power, and the fourth lens and the diaphragm are arranged at intervals; the fifth lens has negative focal power, and the fifth lens and the fourth lens form a cemented lens; the sixth lens has positive focal power, and the sixth lens and the fifth lens are arranged at an interval; the seventh lens has positive focal power, and the seventh lens and the sixth lens are arranged at intervals; and the photosensitive chip and the seventh lens are arranged at intervals, and the photosensitive chip is used for capturing an imaging signal and forming an image. By arranging lens combinations of different structures and reasonably distributing the focal power of each lens, low distortion and high relative illumination of the optical system are realized while high-definition resolution is obtained.

The invention discloses an optical camera lens. The optical camera lens comprises a first lens, a second lens, a third lens and a fourth lens sequentially from an object side to an image side along anoptical axis, wherein the first lens has positive focal power, the object side surface is a convex surface and the image side surface is a concave surface; the second lens has negative focal power; and both the third lens and the fourth lens have positive focal power. According to the optical camera lens disclosed in the invention, the effects of miniaturization, high resolution, small distortion, and strong thermal stability and the like can be achieved.

The invention provides an optical system of a long-wave infrared Doppler differential interferometer. The long-wave infrared Doppler differential interferometer comprises a front camera, an interferometer, a fringe imaging lens and a refrigerated infrared detector; the refrigerated detector is subjected to cold shield matching in a complete matching manner; the fringe imaging lens is in thermal-free design in a mechanical active type thermal compensation manner; therefore, an interferometer system can be assembled at normal temperature and normal pressure (20 DEG C, 1atm), and can work in a low-temperature vacuum environment (160K, 0atm); and thus, influence of thermal radiation of an optical-mechanical structure itself on the detection sensitivity is reduced. By means of the long-wave infrared Doppler differential interferometer in the invention, application of the split Doppler differential interferometer in a long-wave infrared band is realized; simulated interference fringes obtained by the interferometer system in the working band have relatively high modulation degree; and precision requirements of 24-60 km atmospheric wind velocity inversion and ozone concentration inversioncan be satisfied.

The invention discloses an optical lens, a camera module, an electronic device and an automobile, the optical lens comprises a first lens with negative refractive power which is sequentially arranged from an object side to an image side along an optical axis, and the object side surface and the image side surface of the first lens are respectively a convex surface and a concave surface; a second lens element with negative refractive power having a concave image-side surface; the third lens element with positive refractive power has a convex object-side surface and a convex image-side surface. The fourth lens element with positive refractive power has a convex object-side surface and a convex image-side surface. The fifth lens element with negative refractive power has a concave object-side surface and a convex image-side surface, respectively. The sixth lens element with positive refractive power has a convex object-side surface and a convex image-side surface. The optical lens meets the requirement of 3mm lt; f * tan (FOV / 2) lt; 4 mm. According to the optical lens, the camera module, the electronic equipment and the automobile provided by the invention, the miniaturization of the optical lens can be realized, the characteristics of large aperture and wide angle can be realized, and the imaging definition is improved.

The invention discloses an optical lens, a camera module and electronic equipment, and the optical lens comprises a first lens with refractive power, a second lens with refractive power, a third lens with refractive power, a fourth lens with refractive power, a fifth lens and a sixth lens which are sequentially arranged from an object side to an image side along an optical axis, the object side surface and the image side surface of the second lens are respectively a convex surface and a concave surface; a third lens element with negative refractive power having a concave image-side surface; the object side surface and the image side surface of the fourth lens are convex surfaces; the object side surface and the image side surface of the fifth lens are respectively a concave surface and a convex surface; the object side surface and the image side surface of the sixth lens are concave surfaces; a seventh lens element with refractive power having a concave object-side surface; the image side surface of the eighth lens is a convex surface; the object side surface and the image side surface of the ninth lens are respectively a convex surface and a concave surface; the optical lens satisfies 0.3 lt; sD < 12 > / IMGHlt; and 0.5. With the adoption of the scheme, while the imaging quality is ensured, the optical system has the characteristics of miniaturization and large field angle.

The invention belongs to the technical field of lenses and relates to an optical imaging lens. The invention discloses an optical imaging lens. The optical imaging lens comprises a first lens, a second lens, a third lens, a diaphragm, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens which are sequentially distributed from an object side to an image side along an opticalaxis; the first lens is a convex-concave lens with a negative refractive index; the second lens is a concave-concave lens with a negative refractive index; the third lens has a positive refractive index; the object side surface of the third lens is a convex surface; the fourth lens is a concave-concave lens with a negative refractive index; the fifth lens is a convex-convex lens with a positive refractive index; the sixth lens is a convex-convex lens with a positive refractive index; the seventh lens is a concave-convex lens with a negative refractive index; the eighth lens is a convex-concave lens with a positive refractive index; the second lens and the third lens are glued together; the fourth lens and the fifth lens are glued together; and the sixth lens and the seventh lens are gluedtogether. The optical imaging lens has the advantages of large image surface, good image quality, small infrared defocusing, small long in total length and unobvious blue-violet edge phenomena.

The invention provides a small fisheye lens with high resolution and application thereof. A first lens, a second lens, a third lens, a diaphragm, a fourth lens, a fifth lens, a sixth lens, a filter disc and an image plane IMA are sequentially arranged in the incident direction of an optical axis; the first lens has negative focal power, the object side surface is a convex surface, and the image side surface is a concave surface; the second lens has negative focal power, the object side surface of the second lens is a convex surface, and the image side surface is a concave surface; the third lens has positive focal power, the object side surface of the third lens is a convex surface, and the image side surface is a convex surface or a concave surface; the fourth lens has positive focal power, the object side surface of the fourth lens is a convex surface, and the image side surface is a convex surface or a concave surface; the fifth lens has negative focal power, the object side surface of the fifth lens is a concave surface, and the image side surface is a concave surface or a convex surface; the sixth lens has positive focal power, the object side surface of the sixth lens is a convex surface, and the image side surface is a convex surface; the structure is simple, miniaturization of the lens module is facilitated, the cost is low, the lens has high resolution and clear imaging, and meanwhile the lens has high relative illumination and better image illumination uniformity.

The invention relates to the technical field of lenses. The invention discloses an optical imaging lens. The optical imaging lens sequentially comprises a first lens, a second lens, a diaphragm, a third lens, a fourth lens and a fifth lens from an object side to an image side along an optical axis, the first lens is a convex-concave lens with negative refraction; the second lens is a convex planeor convex lens with positive refractive index; the third lens is a concave-convex lens with a positive refractive index; the fourth lens is a convex lens with positive refractive index; the fifth lensis a concave-convex lens with a negative refractive index, and the fourth lens and the fifth lens are glued with each other; and the refractive index temperature coefficient of the first lens is a positive value. The optical imaging lens has the advantages of high resolution, large light transmission, high relative illuminance, good chromatic aberration and aberration correction, small temperature drift and low cost.

The invention relates to the technical field of lenses, and discloses an optical lens for projecting light rays to a measured object from a light source. The direction facing the light source is an image side, and the direction facing the measured object is an object side. The optical lens sequentially comprises a first lens, a second lens and a third lens along an optical axis from the object side to the image side. Each of the first lens, the second lens and the third lens comprises an object side surface and an image side surface, wherein the object side surface facing the object side allows imaging light rays to pass through, and the image side surface facing the image side also allows the imaging light rays to pass through. The first lens made of a glass material is a convex-concave lens with a positive refractive index. The second lens is a concave-concave lens with a negative refractive index. The third lens is a convex-convex lens with a positive refractive index. The second lens and the third lens are aspherical lenses made of plastic materials. The optical lens has the advantages of small temperature-dependent variation in focal length and image quality, high system stability, small distortion, high relative illumination and small system size.

The invention discloses an ultra-wide-angle steering endoscope lens, and belongs to the field of optical lenses. The ultra-wide-angle steering endoscope lens comprises a first lens element (P1), a prism 1 (P2), a prism 2 (P3), a diaphragm (STO), a second lens element (P4), a third lens element (P5), a fourth lens element (P6) and a fifth lens element (P7) which are sequentially arranged along thelight propagation direction, wherein the first lens element (P1) is a positive lens, the prism 1 (P2) and the prism 2 (P3) are deflecting prisms which form an inclination angle of 30 degrees with thehorizontal direction, the two prisms do not need to be glued, the second lens element (P4) is a negative lens, the third lens element (P5) is a positive lens, the fourth lens element (P6) is a negative lens, the fifth lens element (P7) is a positive lens, and each lens and each prism are plastic lenses, and have the characteristics of large field angle, light weight, small size and the like. The invention provides the small steering endoscope lens with a size of 2 mm x 2 mm x 6 mm, and the high-image quality and low-aberration imaging and the low-cost production can be realized.

The invention discloses a high-resolution floating focusing system suitable for different object distances, and the system comprises a first lens with positive focal power, a second lens with negative focal power, a third lens with positive focal power and a fourth lens with negative focal power, which are sequentially arranged from the object side to the phase side. The second lens has positive focal power, and the second lens and the first lens are arranged at an interval; the third lens has negative focal power, and the third lens and the second lens form a cemented lens; a diaphragm; the fourth lens has negative focal power, and the fourth lens and the diaphragm are arranged at an interval; the fifth lens has positive focal power, and the fifth lens and the fourth lens are arranged at an interval; the sixth lens has positive focal power, and the sixth lens and the fifth lens are arranged at an interval; a seventh lens; the eighth lens has negative focal power, and the eighth lens and the seventh lens form a cemented lens; and the photosensitive chip is used for capturing the imaging signal and forming an image. By arranging lens combinations of different structures and reasonably distributing the focal power of each lens, high-resolution images under different object distances are obtained, and the lenses of the front group and the rear group of the system are separated by a certain distance in front of and behind the diaphragm, so that adjustment of a floating focusing mechanism in structure is facilitated.

The invention relates to a large-area array dynamic monitoring and measuring camera optical system. The large-area array dynamic monitoring and measuring camera optical system is composed of anti-radiation window glass, 12 spherical lenses and a large-area array receiver; surveying and mapping target radiation beams which fully fill the entrance pupil of the optical system enters the optical system through an anti-radiation window; and an approximate telecentric optical path inverted telephoto structure is adopted to obtain low-distortion and high-illumination image information at a focal plane. According to the invention, the approximate telecentric optical system is adopted, namely, the emergent main light ray angles of fields of view are approximately parallel, and gamma is approximately equal to 0.1; a designed transfer function can achieve diffraction limits, and at the same time, can satisfy requirements for low distortion and high illumination. The large-area array dynamic-monitoring measuring camera optical system of the invention has the advantages of wide angle, being approximately telecentric, low distortion, excellent relative illumination, high engineering feasibility, high integration degree of an optical machine structure, excellent temperature adaptability and the like. The focal power of four lens groups is reasonably optimized, so that large-format, high-resolution and image plane-uniform imaging of a target scene can be realized.

The invention discloses a fixed-focus optical system, which comprises a first lens, a second lens, a third lens, a fourth lens, a diaphragm, a fifth lens, a sixth lens, a seventh lens and a hpotosensitive chip which are sequentially arranged from an object side to a phase side; the first lens has positive focal power; the second lens has negative focal power, and the second lens and the first lens are arranged at an interval; the third lens has positive focal power, and the third lens and the second lens are arranged at an interval; the fourth lens has positive focal power, and the fourth lens and the third lens are arranged at an interval; the diaphragm and the fourth lens are arranged at an interval and the diaphragm is used for limiting the aperture of the light beam; the fifth lens has negative focal power, and the fifth lens and the diaphragm are arranged at an interval; the sixth lens has positive focal power, and the sixth lens and the fifth lens form a cemented lens; the seventh lens has positive focal power, and the seventh lens and the sixth lens are arranged at an interval; and the photosensitive chip and the seventh lens are arranged at an interval, and the photosensitive chip is used for capturing an imaging signal and forming an image. By arranging lens combinations of different structures and reasonably distributing the focal power of each lens, low distortion and high relative illumination of the optical system are realized while high-definition resolution is obtained.

The invention relates to a wide-angle lens with low distortion and high relative illumination. A front mirror group A, a rear mirror group B and a fixed diaphragm between the front mirror group A andthe rear mirror group B are arranged in order from the left to the right in the incident direction of light. The front mirror group A comprises a first meniscus positive lens, a first meniscus negative lens, a first double convex positive lens, a first double concave negative lens and a second double convex positive lens. The rear mirror group B comprises a second meniscus positive lens, a secondmeniscus negative lens, a third double convex positive lens, a fourth double convex positive lens and a third meniscus negative lens. The invention further relates to a working method of the wide-angle lens with low distortion and high relative illumination. The wide-angle lens provided by the invention has the advantages of reasonable structure, simple operation, low distortion and high relativeillumination.

The invention provides an optical lens, a manufacturing method of the optical lens and an optical imaging device. The optical lens includes: a lens substrate; an anti-reflection film system which is arranged on at least one surface of the lens substrate, wherein the anti-reflection film system comprises a plurality of high-refractive-index film layers and a plurality of low-refractive-index film layers, the high-refractive-index film layers and the low-refractive-index film layers are alternately stacked and the low-refractive-index film layers are in contact with air, and the reflectivity ofthe optical lens to light with the wavelength larger than or equal to 600 nanometers and smaller than or equal to 730 nanometers is smaller than 2%. The problem that the optical lens in the prior artis poor in antireflection effect is solved.

The invention discloses a high-resolution ultralow-distortion optical system and a lens, and the optical system comprises a first lens which has negative focal power; the second lens has positive focal power, and the second lens and the first lens are arranged at an interval; the third lens has negative focal power, and the third lens and the second lens are arranged at an interval; the fourth lens has negative focal power; the fifth lens has positive focal power; the sixth lens has positive focal power; the seventh lens has negative focal power; a diaphragm; the eighth lens has negative focal power, and the eighth lens and the diaphragm are arranged at an interval; the ninth lens has positive focal power; the tenth lens has positive focal power; an eleventh lens having positive focal power; the twelfth lens has positive focal power; the thirteenth lens has negative focal power; and the photosensitive chip is used for capturing the imaging signal and forming an image. By arranging lens combinations of different structures and reasonably distributing the focal power of each lens, low distortion and high relative illumination of the optical system are realized while high-definition resolution is obtained.

The invention discloses a zoom projection optical system, which comprises the following components which are sequentially arranged from an object side to an image side: a first lens group G1 which is fixed during zooming and has negative focal power; a second lens group G2 which can move along the direction of the optical axis, has positive focal power and is used for focusing different object distances; a third lens group G3 which can move along the optical axis direction and has positive focal power; a fourth lens group G4 which can move along the optical axis direction and has positive focal power; a diaphragm group STO which can move along the optical axis direction; a fifth lens group G5 which can move along the direction of the optical axis and has negative focal power; a sixth lens group G6 which can move along the direction of the optical axis and has positive focal power; a seventh lens group G7 which is fixed during zooming and has positive focal power; the zoom projection optical system has a constant Fno, and on the premise that the Fno is constant in the zoom process, the focal length is 17.68 mm to 28.28 mm, the zoom ratio is 1.6 *, the optical distortion is smaller than 1.3%, and the relative illumination is larger than 70%.

The invention relates to the technical field of optical lenses, and in particular relates to a high-pixel wide-angle lens. The high-pixel wide-angle lens is provided with a first lens 1, a second lens2, a third lens 3, a diaphragm 4, a fourth lens 5, a fifth lens 6 and a sixth lens 7 from the object side to the image side in sequence. The object side of the first lens 1 is a convex side, and theimage side is a concave side. The object side of the second lens 2 is a convex side, and the image side is a concave side. The object side and the image side of the third lens 3 are convex sides. Theobject side and the image side of the fourth lens 5 are convex sides. The object side and the image side of the fifth lens 6 are concave sides. The object side and the image side of the sixth lens 7 are convex sides. According to the invention, through concave and convex combination structure adopted by the lenses and reasonable focal power distributing, aberration correction can be realized, andthe imaging clarity is improved.

The invention relates to a near-infrared large-aperture lens. The lens comprises a first lens,a second lens,a third lens,a diaphragm,a fourth lens,a fifth lens,a sixth lens and a seventh lens which are sequentially arranged from the object side to the imaging side; the first lens,the fourth lens and the fifth lens are negative light focus lenses; the second lens,the third lens,the sixth lens and the seventh lens are positive light focus power lenses; in the direction from the object side to the image side,the first lens is a convex-concave lens; the fifth lens is a concave-convex lens; the sixth lens is a dual-convex lens; the seven lens is a convex-concave lens. The near-infrared large-aperture lens has the advantages of being large in view angle,low in deformation and small in size.

The invention discloses an optical lens, a camera module, an electronic device and an automobile. The optical lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens which are sequentially arranged along an optical axis from an object side to an image side. The first lens has positive refractive power, the object side surface and the image side surface of the first lens are a convex surface and a concave surface near the optical axis respectively. The second lens has negative refractive power, and an object-side surface and an image-side surface thereof are concave in a paraxial region. The third lens has positive refractive power, and an image-side surface thereof is convex in a paraxial region. The fourth lens has negative refractive power, and has a convex object-side surface and a concave image-side surface in paraxial regions, respectively. The fifth lens has positive refractive power, and an object-side surface and an image-side surface thereof are convex in a paraxial region. The sixth lens has refractive power, and has a convex object-side surface and a concave image-side surface in paraxial regions, respectively. According to the optical lens, the characteristics of small distortion and large aperture of the optical lens can be achieved, and the imaging quality requirement of the optical lens is effectively met.

The invention provides an optical imaging lens. The optical imaging lens sequentially comprises a first lens, a second lens, a third lens and a fourth lens from the object side to the image side of the optical imaging lens, wherein the object-side surface of the third lens is a concave surface, and the image-side surface of the third lens is a convex surface; the fourth lens has negative focal power; the maximum effective radius DT11 of the object-side surface of the first lens and the aperture value fno of the optical imaging lens meet the following condition: 0.3 mm < DT11 / fno < 0.5 mm; and the effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens meet the following condition: f / EPD < 2. The problem that a lens in the prior art is difficult to miniaturize is solved.

The present invention discloses an optical lens. The optical lens may include a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens in sequence from an object side to an image side along an optical axis, wherein, the first lens may have a positive focal power, a convex object side surface and a concave image side surface; the second lens may have a negative focalpower, a convex object side surface and a concave image side surface; the third lens may have a negative focal power, concave object side surface and image side surface; the fourth lens may have a positive power, convex object side surface and image side surface; the fifth lens may have a positive focal power; and the sixth lens may have a negative focal power, a concave object side surface and aconvex image side surface. The optical lens of the invention can realize at least one of beneficial effects of miniaturization, small FNO, good temperature performance, low cost, and high relative illuminance.