WO2019205944A1 - 光学镜头及成像设备 - Google Patents

光学镜头及成像设备 Download PDF

Info

Publication number
WO2019205944A1
WO2019205944A1 PCT/CN2019/082155 CN2019082155W WO2019205944A1 WO 2019205944 A1 WO2019205944 A1 WO 2019205944A1 CN 2019082155 W CN2019082155 W CN 2019082155W WO 2019205944 A1 WO2019205944 A1 WO 2019205944A1
Authority
WO
WIPO (PCT)
Prior art keywords
lens
optical
optical lens
object side
image side
Prior art date
Application number
PCT/CN2019/082155
Other languages
English (en)
French (fr)
Inventor
姚波
王东方
栾晓宇
Original Assignee
宁波舜宇车载光学技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201810403955.XA external-priority patent/CN110412727B/zh
Priority claimed from CN201810397674.8A external-priority patent/CN110412718B/zh
Priority claimed from CN201810840869.5A external-priority patent/CN110764223B/zh
Priority claimed from CN201811588530.7A external-priority patent/CN111367058B/zh
Application filed by 宁波舜宇车载光学技术有限公司 filed Critical 宁波舜宇车载光学技术有限公司
Publication of WO2019205944A1 publication Critical patent/WO2019205944A1/zh
Priority to US16/730,349 priority Critical patent/US20200142158A1/en
Priority to US18/306,290 priority patent/US20230258908A1/en

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/04—Reversed telephoto objectives
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/64—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having more than six components
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
    • G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
    • G02B13/006—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element at least one element being a compound optical element, e.g. cemented elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/16—Optical objectives specially designed for the purposes specified below for use in conjunction with image converters or intensifiers, or for use with projectors, e.g. objectives for projection TV

Definitions

  • the present application relates to an optical lens, and more particularly, to an optical lens comprising seven lenses. Further, the present application relates to an image forming apparatus including an optical lens including seven lenses.
  • optical lenses are becoming more and more widely used in automobiles, and the pixel requirements for optical lenses are getting higher and higher, and more and more companies are also applying wide-angle lenses. Driving automatically.
  • plastic lenses are often used to achieve the effect of reducing cost and light weight.
  • the degree of high plasticization is difficult to overcome due to the thermal expansion and contraction characteristics of plastic lenses.
  • the combination of lens power and material selection makes the temperature performance A better implementation, but the overall still can not meet the increasingly stringent temperature requirements.
  • plastic lenses In order not to increase the cost significantly, the above objectives are generally achieved by adding plastic lenses.
  • plastic materials due to the limitation of plastic materials, the use of a large number of plastic lenses will make the vehicle lens unable to maintain high resolution in high and low temperature environments.
  • the present application provides an optical lens that can be adapted for in-vehicle installation that overcomes or at least partially overcomes at least one of the above-discussed deficiencies of the prior art.
  • the present application provides an optical lens that includes, in order from the object side to the image side along the optical axis, a first lens, a second lens, a third lens, a fourth lens, and a fifth a lens, a sixth lens, and a seventh lens.
  • the first lens may have a negative refractive power, the object side surface is a convex surface, the image side surface is a concave surface;
  • the second lens may have a negative refractive power, the object side surface is a convex surface, the image side surface is a concave surface;
  • the third lens may have a negative The power, the object side and the image side are concave;
  • the fourth lens may have positive power and the object side is convex;
  • the seventh lens may have positive power, and the object side and the image side are convex, wherein
  • the fifth lens and the sixth lens may be glued to form a cemented lens.
  • the image side of the fourth lens may be convex.
  • the image side of the fourth lens may be concave.
  • the fifth lens may have a positive power, and both the object side and the image side may be convex.
  • the sixth lens may have a negative power, and both the object side and the image side may be concave.
  • the refractive index of the material of the first lens may be greater than or equal to 1.65.
  • At least three of the optical lenses may be aspherical lenses.
  • the seventh lens can be an aspherical lens.
  • At least one of the optical lenses may be a glass lens.
  • conditional expression D/h/FOV ⁇ 0.025, wherein the FOV is the maximum angle of view of the optical lens; and D is the maximum of the side of the first lens corresponding to the maximum angle of view of the optical lens.
  • the aperture diameter; and h is the image height corresponding to the maximum angle of view of the optical lens.
  • conditional expression can be satisfied: TTL/h/FOV ⁇ 0.025, where TTL is the distance from the center of the object side of the first lens to the imaging surface of the optical lens on the optical axis; h is the maximum view of the optical lens The image height corresponding to the field angle; and the FOV is the maximum angle of view of the optical lens.
  • conditional expression BFL/TTL ⁇ 0.1, wherein the BFL is the distance from the center of the image side of the seventh lens to the imaging surface of the optical lens on the optical axis; and the TTL is the first lens The distance from the center of the side to the imaging surface of the optical lens on the optical axis.
  • the radius of curvature r31 of the object side surface of the third lens, the radius of curvature r32 of the image side surface of the third lens, and the center thickness d3 of the third lens may satisfy: (
  • the present application provides an optical lens that includes, in order from the object side to the image side along the optical axis, a first lens, a second lens, a third lens, a fourth lens, and a fifth a lens, a sixth lens, and a seventh lens.
  • first lens, the second lens, the third lens and the sixth lens may each have a negative power; the fourth lens, the fifth lens and the seventh lens may each have a positive power; and the fifth lens and the sixth lens
  • the lens may be glued to form a cemented lens, wherein the distance from the center of the object side of the first lens to the imaging surface of the optical lens on the optical axis, the image height h corresponding to the maximum field of view of the optical lens, and the maximum field of view of the optical lens.
  • the conditional expression can be satisfied between the corner FOVs: TTL/h/FOV ⁇ 0.025.
  • the object side of the first lens may be a convex surface, and the image side may be a concave surface.
  • the object side of the second lens may be convex, and the image side may be concave.
  • the object side and the image side of the third lens may both be concave.
  • the object side and the image side of the fourth lens may both be convex.
  • the object side of the fourth lens may be a convex surface, and the image side may be a concave surface.
  • the object side and the image side of the fifth lens may both be convex.
  • the object side and the image side of the sixth lens may both be concave.
  • the object side and the image side of the seventh lens may both be convex.
  • the refractive index of the material of the first lens may be greater than or equal to 1.65.
  • At least three of the optical lenses may be aspherical lenses.
  • the seventh lens can be an aspherical lens.
  • At least one of the optical lenses may be a glass lens.
  • conditional expression D/h/FOV ⁇ 0.025, wherein the FOV is the maximum angle of view of the optical lens; and D is the maximum of the side of the first lens corresponding to the maximum angle of view of the optical lens.
  • the aperture diameter; and h is the image height corresponding to the maximum angle of view of the optical lens.
  • conditional expression BFL/TTL ⁇ 0.1, wherein the BFL is the distance from the center of the image side of the seventh lens to the imaging surface of the optical lens on the optical axis; and the TTL is the first lens The distance from the center of the side to the imaging surface of the optical lens on the optical axis.
  • the radius of curvature r31 of the object side surface of the third lens, the radius of curvature r32 of the image side surface of the third lens, and the center thickness d3 of the third lens may satisfy: (
  • the present application provides an optical lens including, in order from the object side to the image side along the optical axis, a first lens, a second lens, a third lens, a fourth lens, and a fifth lens. a sixth lens and a seventh lens, wherein the first lens has a negative power, and the object side of the first lens is a convex surface, the image side of the first lens is a concave surface; the second lens has a negative power, and the The object side surface of the two lens is a convex surface, the image side surface of the second lens is a concave surface; the third lens has a negative refractive power, and the object side surface of the third lens is a concave surface, the image side surface of the third lens is a convex surface; and the fourth lens has a positive light Power, and the object side of the fourth lens is convex, the image side of the fourth lens is concave; the fifth lens and the sixth lens are glued together; and the seventh lens has positive power, and
  • the fifth lens has a positive power, and the object side and the image side of the fifth lens are both convex; and the sixth lens has a negative power, and the object side and the image of the sixth lens The sides are all concave.
  • the second lens, the third lens, and the seventh lens are aspherical lenses.
  • At least four of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, and the seventh lens are aspherical lenses.
  • the fourth lens of the optical lens satisfies the conditional expression: 0.4 ⁇ ( ⁇ r41 ⁇ +d4)/ ⁇ r42 ⁇ 0.8, where r41 is the curvature of the object side of the fourth lens of the optical lens. Radius; d4 is the center thickness of the fourth lens of the optical lens; and r42 is the radius of curvature of the image side of the fourth lens of the optical lens.
  • the optical lens satisfies the conditional expression: D/h/FOV ⁇ 0.02, where D is the maximum clear aperture of the object side of the first lens corresponding to the maximum angle of view of the optical lens; The image height corresponding to the maximum angle of view of the optical lens; and the FOV is the maximum angle of view of the optical lens.
  • the optical lens satisfies the conditional expression: TTL/h/FOV ⁇ 0.025, wherein TTL is the distance from the center of the object side of the first lens of the optical lens to the imaging surface of the optical lens; h is The image height corresponding to the maximum field of view of the optical lens; and the FOV is the maximum angle of view of the optical lens.
  • the optical lens satisfies the conditional expression: BFL/TTL ⁇ 0.1, wherein the BFL is the distance from the center of the image side of the seventh lens of the optical lens to the imaging surface of the optical lens; and the TTL is from The distance from the center of the object side of the first lens of the optical lens to the imaging surface of the optical lens.
  • the first lens of the optical lens satisfies the conditional expression: Nd1 ⁇ 1.7, wherein Nd1 is the refractive index of the material of the first lens forming the optical lens.
  • the present application provides an optical lens including, in order from the object side to the image side along the optical axis, a first lens, a second lens, a third lens, a fourth lens, and a fifth lens. a sixth lens and a seventh lens, wherein the first lens, the second lens, and the third lens have negative power; the fourth lens and the seventh lens have positive power; and the optical lens satisfies a conditional expression: TTL/h /FOV ⁇ 0.025, where TTL is the distance from the center of the object side of the first lens of the optical lens to the imaging surface of the optical lens, h is the image height corresponding to the maximum angle of view of the optical lens, and the FOV is the optical lens The maximum field of view.
  • the object side of the first lens is convex, and the image side of the first lens is concave.
  • the object side of the second lens is convex and the image side of the second lens is concave.
  • the object side of the third lens is concave and the image side of the third lens is convex.
  • the object side of the fourth lens is convex and the image side of the fourth lens is concave.
  • the fifth lens and the sixth lens are glued together.
  • the object side and the image side of the seventh lens are both convex.
  • the fifth lens has a positive power, and the object side and the image side of the fifth lens are both convex; and the sixth lens has a negative power, and the object side and the image of the sixth lens The sides are all concave.
  • the second lens, the third lens, and the seventh lens are aspherical lenses.
  • At least four of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, and the seventh lens are aspherical lenses.
  • the fourth lens of the optical lens satisfies the conditional expression: 0.4 ⁇ ( ⁇ r41 ⁇ +d4)/ ⁇ r42 ⁇ 0.8, where r41 is the curvature of the object side of the fourth lens of the optical lens Radius; d4 is the center thickness of the fourth lens of the optical lens; and r42 is the radius of curvature of the image side of the fourth lens of the optical lens.
  • the optical lens satisfies the conditional expression: D/h/FOV ⁇ 0.02, where D is the maximum clear aperture of the object side of the first lens corresponding to the maximum angle of view of the optical lens; The image height corresponding to the maximum angle of view of the optical lens; and the FOV is the maximum angle of view of the optical lens.
  • the optical lens satisfies the conditional expression: BFL/TTL ⁇ 0.1, wherein the BFL is the distance from the center of the image side of the seventh lens of the optical lens to the imaging surface of the optical lens; and the TTL is from The distance from the center of the object side of the first lens of the optical lens to the imaging surface of the optical lens.
  • the first lens of the optical lens satisfies the conditional expression: Nd1 ⁇ 1.7, wherein Nd1 is the refractive index of the material of the first lens forming the optical lens.
  • the present application provides an optical lens that includes, in order from the object side to the image side along the optical axis, a first lens, a second lens, a third lens, a fourth lens, and a fifth a lens, a sixth lens, and a seventh lens.
  • the first lens may have negative power, the object side is convex, the image side is concave; the second lens may have negative power, the image side is concave; the third lens may have negative power, The side surface of the object is a concave surface, and the side surface is a convex surface; the fourth lens may have a positive power, and the object side surface and the image side surface are both convex surfaces; the fifth lens may have a negative power, the object side surface is a convex surface, and the image side surface is a concave surface; The sixth lens may have positive refractive power, and both the object side and the image side surface are convex; and the seventh lens may have positive refractive power, and the object side surface is convex.
  • the fifth lens and the sixth lens may be glued to each other to form a cemented lens.
  • the object side of the second lens may be convex.
  • the object side of the second lens may be concave.
  • the image side of the seventh lens may be convex.
  • the image side of the seventh lens may be concave.
  • the optical lens can have at least 4 aspherical lenses.
  • the second lens, the third lens, and the seventh lens may each be an aspherical lens.
  • conditional expression d2 / TTL ⁇ 0.2, wherein d2 is the air gap between the first lens and the second lens; and TTL is the center of the object side of the first lens to the imaging of the optical lens The distance on the optical axis.
  • the maximum field of view angle FOV of the optical lens, the entire set of focal length values F of the optical lens, and the image height h corresponding to the maximum angle of view of the optical lens can satisfy: (FOV ⁇ F)/h ⁇ 45.
  • the refractive index of the material of the first lens may be greater than or equal to 1.65.
  • the maximum angle of view FOV of the optical lens, the maximum aperture diameter D of the object side of the first lens corresponding to the maximum angle of view of the optical lens, and the image height corresponding to the maximum angle of view of the optical lens h It can be satisfied: D/h/FOV ⁇ 0.02.
  • the distance from the center of the object side of the first lens to the imaging surface of the optical lens on the optical axis is between the center of the image side of the seventh lens and the distance BFL of the imaging surface of the optical lens on the optical axis.
  • the distance from the center of the object side of the first lens to the imaging surface of the optical lens on the optical axis TTL, the maximum field of view angle FOV of the optical lens, and the image height corresponding to the maximum field of view of the optical lens h can be satisfied: TTL / h / FOV ⁇ 0.025.
  • the present application provides an optical lens that includes, in order from the object side to the image side along the optical axis, a first lens, a second lens, a third lens, a fourth lens, and a fifth a lens, a sixth lens, and a seventh lens.
  • the first lens, the second lens, the third lens and the fifth lens may each have a negative power
  • the fourth lens, the sixth lens and the seventh lens may each have a positive power
  • the fifth lens may be the sixth Lens bonding
  • the maximum field of view angle FOV of the optical lens, the entire set of focal length value F of the optical lens and the image height h corresponding to the maximum angle of view of the optical lens can satisfy: (FOV ⁇ F) / h ⁇ 45.
  • the object side of the first lens may be a convex surface, and the image side may be a concave surface.
  • the object side of the second lens may be convex, and the image side may be concave.
  • both the object side and the image side of the second lens may be concave.
  • the object side of the third lens may be a concave surface, and the image side may be a convex surface.
  • the object side and the image side of the fourth lens may both be convex.
  • the object side of the fifth lens may be convex, and the image side may be concave.
  • the object side and the image side of the sixth lens may both be convex.
  • the object side and the image side of the seventh lens may both be convex.
  • the object side of the seventh lens may be a convex surface, and the image side may be a concave surface.
  • the optical lens can have at least 4 aspherical lenses.
  • the second lens, the third lens, and the seventh lens may each be an aspherical lens.
  • conditional expression d2 / TTL ⁇ 0.2, wherein d2 is the air gap between the first lens and the second lens; and TTL is the center of the object side of the first lens to the imaging of the optical lens The distance on the optical axis.
  • the refractive index of the material of the first lens may be greater than or equal to 1.65.
  • the maximum angle of view FOV of the optical lens, the maximum aperture diameter D of the object side of the first lens corresponding to the maximum angle of view of the optical lens, and the image height corresponding to the maximum angle of view of the optical lens h It can be satisfied: D/h/FOV ⁇ 0.02.
  • the distance from the center of the object side of the first lens to the imaging surface of the optical lens on the optical axis is between the center of the image side of the seventh lens and the distance BFL of the imaging surface of the optical lens on the optical axis.
  • the distance from the center of the object side of the first lens to the imaging surface of the optical lens on the optical axis TTL, the maximum field of view angle FOV of the optical lens, and the image height corresponding to the maximum field of view of the optical lens h can be satisfied: TTL / h / FOV ⁇ 0.025.
  • an aspect of the present application provides an optical lens that includes, in order from the object side to the image side along the optical axis, a first lens, a second lens, a third lens, and a fourth lens. a fifth lens, a sixth lens, and a seventh lens.
  • the first lens may have a negative refractive power, the object side surface is a convex surface, the image side surface is a concave surface;
  • the second lens may have a negative refractive power, the object side surface is a convex surface, the image side surface is a concave surface;
  • the third lens may have a negative
  • the power is a concave surface, the image side is a convex surface, the fourth lens may have a positive power, and the object side surface and the image side surface are convex surfaces;
  • the fifth lens may have a positive power, and both the object side and the image side surface
  • the sixth lens may have a negative power, and both the object side and the image side are concave; and the seventh lens may have a positive power, and both the object side and the image side are convex.
  • the fifth lens and the sixth lens may be glued to each other to form a first cemented lens.
  • the optical lens can have at least three aspherical lenses.
  • the third lens, the fourth lens, and the seventh lens may each be an aspherical lens.
  • the maximum field of view angle FOV of the optical lens, the maximum aperture aperture D of the object side of the first lens corresponding to the maximum angle of view of the optical lens, and the image height corresponding to the maximum angle of view of the optical lens Between h can be satisfied: D / h / FOV ⁇ 0.025.
  • the maximum field of view angle FOV of the optical lens, the entire set of focal length values F of the optical lens, and the image height h corresponding to the maximum angle of view of the optical lens can satisfy: (FOV ⁇ F)/h ⁇ 50.
  • the focal length value F2 of the second lens and the focal length value F3 of the third lens may satisfy: F3/F2 ⁇ 1.6.
  • the optical back focus BFL of the optical lens and the optical total length TTL of the optical lens can satisfy: BFL/TTL ⁇ 0.05.
  • the optical total length TTL of the optical lens, the maximum field of view angle FOV of the optical lens, and the image height h corresponding to the maximum angle of view of the optical lens are satisfied: TTL/h/FOV ⁇ 0.025.
  • the material refractive index Nd1 of the first lens may satisfy: Nd1 ⁇ 1.65.
  • the air gap d12 between the sixth lens and the seventh lens and the optical total length TTL of the optical lens may satisfy: d12/TTL ⁇ 0.035.
  • the focal length value F7 of the seventh lens and the entire set of focal length values F of the optical lens may satisfy: F7/F ⁇ 3.
  • the combined focal length value F56 of the fifth lens and the sixth lens and the entire set of focal length values F of the optical lens may satisfy: F56/F ⁇ -10.
  • the present application provides an optical lens that includes, in order from the object side to the image side along the optical axis, a first lens, a second lens, a third lens, a fourth lens, and a fifth a lens, a sixth lens, and a seventh lens.
  • the first lens, the second lens, the third lens and the sixth lens may each have a negative power; the fourth lens, the fifth lens and the seventh lens may each have a positive power; the fifth lens and the sixth lens Can be glued together to form a cemented lens; and the maximum field of view angle FOV of the optical lens, the entire set of focal length value F of the optical lens, and the image height h corresponding to the maximum field of view of the optical lens can satisfy: (FOV ⁇ F) / H ⁇ 50.
  • the object side of the first lens may be a convex surface, and the image side may be a concave surface.
  • the object side of the second lens may be convex, and the image side may be concave.
  • the object side of the third lens may be a concave surface, and the image side may be a convex surface.
  • the object side and the image side of the fourth lens may both be convex.
  • the object side and the image side of the fifth lens may both be convex.
  • the object side and the image side of the sixth lens may both be concave.
  • the object side and the image side of the seventh lens may both be convex.
  • the optical lens can have at least three aspherical lenses.
  • the third lens, the fourth lens, and the seventh lens may each be an aspherical lens.
  • the maximum field of view angle FOV of the optical lens, the maximum aperture aperture D of the object side of the first lens corresponding to the maximum angle of view of the optical lens, and the image height corresponding to the maximum angle of view of the optical lens Between h can be satisfied: D / h / FOV ⁇ 0.025.
  • the focal length value F2 of the second lens and the focal length value F3 of the third lens may satisfy: F3/F2 ⁇ 1.6.
  • the optical back focus BFL of the optical lens and the optical total length TTL of the optical lens can satisfy: BFL/TTL ⁇ 0.05.
  • the optical total length TTL of the optical lens, the maximum field of view angle FOV of the optical lens, and the image height h corresponding to the maximum angle of view of the optical lens are satisfied: TTL/h/FOV ⁇ 0.025.
  • the material refractive index Nd1 of the first lens may satisfy: Nd1 ⁇ 1.65.
  • the air gap d12 between the sixth lens and the seventh lens and the optical total length TTL of the optical lens may satisfy: d12/TTL ⁇ 0.035.
  • the focal length value F7 of the seventh lens and the entire set of focal length values F of the optical lens may satisfy: F7/F ⁇ 3.
  • the combined focal length value F56 of the fifth lens and the sixth lens and the entire set of focal length values F of the optical lens may satisfy: F56/F ⁇ -10.
  • the present application also provides an image forming apparatus, which may include an optical lens according to some of the above embodiments and an imaging element for converting an optical image formed by the optical lens into an electrical signal.
  • Some of the above embodiments of the present application may employ, for example, seven lenses, and the optical lens may have high resolution, miniaturization, low cost, and good performance by optimizing the shape of the lens, rationally distributing the power of each lens, and the like. At least one of the beneficial effects of temperature performance, small front port diameter, and the like.
  • some or other embodiments of the above-described embodiments of the application may also enable the optical lens to achieve at least one of miniaturization, high resolution, low cost, and the like.
  • some or other embodiments of the above-described embodiments of the application may also enable the optical lens to achieve at least one of a front end small aperture, a high pixel, a miniaturization, a large field of view, and the like.
  • some or other embodiments of the above-described embodiments of the application may also enable the optical lens to achieve at least one of high resolution, miniaturization, large angular resolution, stable temperature performance, small aperture, low cost, and the like.
  • FIG. 1 is a schematic structural view showing an optical lens according to Embodiment 1 of the present application.
  • FIG. 2 is a schematic structural view showing an optical lens according to Embodiment 2 of the present application.
  • FIG. 3 is a schematic structural view showing an optical lens according to Embodiment 3 of the present application.
  • FIG. 4 is a schematic structural view showing an optical lens according to Embodiment 4 of the present application.
  • FIG. 5 is a schematic structural view showing an optical lens according to Embodiment 5 of the present application.
  • FIG. 6 is a schematic structural view showing an optical lens according to Embodiment 6 of the present application.
  • FIG. 7 is a schematic structural view showing an optical lens according to Embodiment 7 of the present application.
  • Embodiment 8 is a schematic structural view showing an optical lens according to Embodiment 8 of the present application.
  • Embodiment 9 is a schematic structural view showing an optical lens according to Embodiment 9 of the present application.
  • FIG. 10 is a schematic structural view showing an optical lens according to Embodiment 10 of the present application.
  • FIG. 11 is a schematic structural view showing an optical lens according to Embodiment 11 of the present application.
  • first, second, third, etc. are used to distinguish one feature from another, and do not represent any limitation of the feature.
  • first lens discussed below may also be referred to as a second lens or a third lens without departing from the teachings of the present application, and the first cemented lens may also be referred to as a second cemented lens.
  • the thickness, size, and shape of the lens have been somewhat exaggerated for convenience of explanation.
  • the spherical or aspherical shape shown in the drawings is shown by way of example. That is, the shape of the spherical surface or the aspherical surface is not limited to the spherical or aspherical shape shown in the drawings.
  • the drawings are only examples and are not to scale.
  • a paraxial region refers to a region near the optical axis. If the surface of the lens is convex and the position of the convex surface is not defined, it indicates that the surface of the lens is convex at least in the paraxial region; if the surface of the lens is concave and the position of the concave surface is not defined, it indicates that the surface of the lens is at least in the paraxial region. Concave.
  • the surface closest to the object in each lens is referred to as the object side, and the surface of each lens closest to the image plane is referred to as the image side.
  • An optical lens according to an exemplary embodiment of the present application includes, for example, seven lenses having powers, that is, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. These seven lenses are sequentially arranged from the object side to the image side along the optical axis.
  • the optical lens according to an exemplary embodiment of the present application may further include a photosensitive element disposed on the imaging surface.
  • the photosensitive element disposed on the imaging surface may be a photosensitive coupling element (CCD) or a complementary oxidized metal semiconductor element (CMOS).
  • CCD photosensitive coupling element
  • CMOS complementary oxidized metal semiconductor element
  • the first lens may have a negative power
  • the object side may be a convex surface
  • the image side may be a concave surface.
  • the first lens is arranged such that the meniscus shape on the convex side can collect large field of view light as much as possible, allowing light to enter the rear optical system.
  • the shape of the meniscus on the convex object side is more suitable for environments such as rain and snow, which is conducive to the falling of water droplets and the accumulation of water. Dust, so as to reduce the impact of the external environment on imaging.
  • the second lens may have a negative power, the object side may be a convex surface, and the image side may be a concave surface.
  • the second lens compresses the light collected by the first lens to smoothly transition the light to the rear optical system.
  • the image side surface of the second lens is disposed as a concave surface, which is advantageous for reducing the distance between the first lens and the second lens, and is more likely to shorten the physical length of the lens and achieve miniaturization characteristics.
  • the third lens may have a negative power, and both the object side and the image side may be concave.
  • the third lens can diverge light, make the light transition to the rear optical system, balance the aberration caused by the front and rear lenses, and the shape of the third lens biconcave can reduce the overall length of the lens, while the third lens adopts a negative focal length lens to facilitate the lens. It compensates for the back focus shift of the whole lens at high and low temperatures, so that the lens has good resolution at high and low temperatures.
  • the fourth lens may have a positive power and the object side may be a convex surface.
  • the fourth lens can converge light, allowing the light to transition smoothly to the rear optical system.
  • the fifth lens may have a positive power, and both the object side and the image side may be convex.
  • the sixth lens may have a negative power, and both the object side and the image side may be concave.
  • the seventh lens may have a positive power, and both the object side and the image side may be convex.
  • the seventh lens is a converging lens, and the light can be appropriately concentrated.
  • a cemented lens can be used to minimize chromatic aberration or eliminate chromatic aberration.
  • the use of a cemented lens in an optical lens improves the image quality and reduces the reflection loss of light energy, thereby improving the sharpness of the lens image.
  • the use of cemented lenses also simplifies assembly procedures during lens manufacturing.
  • the fifth lens and the sixth lens may be combined into a cemented lens by gluing the image side of the fifth lens with the object side of the sixth lens.
  • a cemented lens composed of a fifth lens and a sixth lens it is possible to help eliminate the influence of chromatic aberration, reduce curvature of field, and correct coma; and at the same time, the cemented lens can still partially chromatic aberration to balance the overall chromatic aberration of the optical system.
  • the gluing of the lens omits the air separation between the two lenses, making the optical system as compact as possible, meeting the system miniaturization needs.
  • the gluing of the lens reduces the tolerance sensitivity of the lens unit due to tilt/eccentricity generated during assembly.
  • the fifth lens near the object side has a positive power
  • the sixth lens near the image side has a negative power.
  • Such an arrangement is advantageous for further concentrating the light passing through the fourth lens and then transitioning to the rear optical.
  • the system helps to reduce the port diameter/size of the lens and reduce the total length of the system to achieve short TTL.
  • the light will diverge slightly after passing through the sixth lens, which helps the lens to match larger sized chips.
  • a stop for limiting the light beam may be disposed between, for example, the fourth lens and the fifth lens to further improve the imaging quality of the lens.
  • the diaphragm is disposed between the four lenses and the fifth lens, the front and rear light rays can be effectively collected, the total length of the optical system is shortened, and the apertures of the front and rear lens groups are reduced.
  • the maximum angle of view FOV of the optical lens, the maximum clear aperture D of the first lens side corresponding to the maximum angle of view of the optical lens, and the image height h corresponding to the maximum angle of view of the optical lens The ratio can be satisfied: D/h/FOV ⁇ 0.025, and more desirably, D, h, and FOV can further satisfy D/h/FOV ⁇ 0.02.
  • the conditional formula D/h/FOV ⁇ 0.025 is satisfied, and the front end of the lens is small.
  • the optical back focus BFL of the optical lens and the optical total length TTL of the optical lens may satisfy BFL/TTL ⁇ 0.1, and further, the BFL and TTL may further satisfy BFL/TTL ⁇ 0.13.
  • the BFL/TTL ⁇ 0.1 back focus setting can be used to facilitate the assembly of the optical lens.
  • the optical total length TTL of the optical lens, the maximum field of view angle FOV of the optical lens, and the image height h corresponding to the maximum angle of view of the optical lens can satisfy TTL/h/FOV ⁇ 0.025, which is more desirable.
  • Ground, TTL, FOV and h can further meet TTL / h / FOV ⁇ 0.02.
  • the conditional TTL/h/FOV ⁇ 0.025 is satisfied, and the TTL of the same imaging plane of the same field of view is shorter than that of other lenses, and the lens can be miniaturized.
  • the radius of curvature r31 of the side surface of the third lens object, the radius of curvature r32 of the side surface of the third lens image, and the center thickness d3 of the third lens may satisfy: (
  • the shape design of the third lens is advantageous for improving the image quality and shortening the total optical length of the system.
  • the first lens may use a high refractive index material, specifically, for example, the refractive index of the first lens material may be greater than or equal to 1.65, and more desirably, the refractive index of the first lens material is greater than or equal to 1.7.
  • a high refractive index material specifically, for example, the refractive index of the first lens material may be greater than or equal to 1.65, and more desirably, the refractive index of the first lens material is greater than or equal to 1.7.
  • At least three of the optical lenses according to the present application are aspherical lenses.
  • Aspherical lenses are characterized by a continuous change in curvature from the center of the lens to the periphery. Unlike spherical lenses with constant curvature from the center of the lens to the periphery, aspherical lenses have better curvature radius characteristics, which have the advantage of improving distortion and improving astigmatic aberrations. With the aspherical lens, the aberrations that occur during imaging can be eliminated as much as possible, thereby improving the image quality of the lens.
  • the first lens may employ an aspherical lens, which may be advantageous for improving the resolution quality.
  • the seventh lens can adopt an aspherical lens to reduce the optical path of the peripheral light reaching the imaging surface, correct the off-axis point aberration of the system, and optimize the distortion, CRA and the like.
  • the seventh lens adopts an aspherical surface, which enables the light to be effectively and smoothly concentrated at the end, thereby reducing the overall weight and cost of the system.
  • the lens used in the optical lens may be a plastic lens or a glass lens. Since the thermal expansion coefficient of the plastic material lens is large, when the ambient temperature used by the lens changes greatly, the plastic lens has a great influence on the overall performance of the lens.
  • the use of glass lenses reduces the effect of temperature on lens performance.
  • At least one of the optical lenses according to the present application is a glass lens to reduce the influence of the environment on the overall system and improve the overall performance of the optical lens.
  • the first lens can be a glass lens. More desirably, the first lens may employ a glass aspherical lens to further improve image quality and reduce front port diameter.
  • the lens shape is optimally arranged, the optical power is properly distributed, the front port diameter can be reduced, the TTL can be shortened, and the resolution of the lens can be reduced while the resolution is improved.
  • the optical lens according to the application does not need to use a glass aspherical surface to achieve the same requirement and reduce the cost.
  • This application uses 7 lenses to maintain high resolution at high and low temperatures, and is well suited for use in automotive environments.
  • the first lens may have a negative refractive power, and the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface.
  • the first lens By designing the first lens to have a meniscus shape with a convex surface facing the object side, it is possible to collect large field of view light into the rear optical system as much as possible.
  • the wide-angle lens since the wide-angle lens may be installed outside the vehicle, it may encounter a bad weather environment; the convex shape of the first lens according to the present application is less likely to accumulate water and dust, and can reduce the external environment. The impact on imaging.
  • the refractive index Nd1 of the material of the first lens forming the optical lens satisfies the conditional expression: Nd1 ⁇ 1.7, for example, the conditional formula: Nd1 ⁇ 1.76 can be further satisfied.
  • Nd1 ⁇ 1.7 it is advantageous to reduce the front port diameter of the optical system and improve the imaging quality of the optical system.
  • the first lens is made of a material having a high refractive index.
  • the first lens may be a glass aspherical lens.
  • the second lens may have a negative power, and the object side of the second lens is a convex surface, and the image side of the second lens is a concave surface.
  • the second lens compresses the light collected by the first lens to make the light transition smoothly.
  • the third lens may have a negative power, and the object side of the third lens is a concave surface, and the image side of the third lens is a convex surface.
  • the third lens is capable of diverging light and allowing the diverged light to smoothly enter the rear while balancing the spherical aberration introduced by the first two sets of lenses (specifically, the first lens and the second lens) and the positional chromatic aberration.
  • the fourth lens may have a positive power, and the object side of the fourth lens is a convex surface, and the image side of the fourth lens is a concave surface. In this way, the fourth lens can compress the light to make the light transition smoothly; at the same time, the shape of the lens can greatly shorten the total length of the lens and improve the lens chromatic aberration.
  • the radius of curvature r41 of the object side of the fourth lens of the optical lens, the center thickness d4 of the fourth lens of the optical lens, and the radius of curvature r42 of the image side of the fourth lens of the optical lens satisfy the conditional formula: 0.4 ⁇ ( ⁇ r41 ⁇ +d4)/ ⁇ r42 ⁇ 0.8, for example, the conditional formula: 0.5 ⁇ ( ⁇ r41 ⁇ +d4)/ ⁇ r42 ⁇ 0.7 can be further satisfied.
  • the special shape of the fourth lens it satisfies the conditional expression 0.4 ⁇ ( ⁇ r41 ⁇ +d4)/ ⁇ r42 ⁇ 0.8, which can improve the image quality and shorten the total length of the optical lens.
  • the fifth lens and the sixth lens may be glued together.
  • gluing the fifth lens and the sixth lens it is possible to achromatic and reduce the tolerance sensitivity, and at the same time, a part of the chromatic aberration can be left to balance the chromatic aberration of the system.
  • the fifth lens may have a positive power, and the object side and the image side of the fifth lens are both convex; and the sixth lens may have a negative power, and the object side and the image of the sixth lens The sides are all concave.
  • the front light can be further concentrated and then transitioned to the rear, so that the rear port diameter/size can be reduced and the total length of the optical system can be reduced.
  • the seventh lens may have a positive power, and the object side and the image side of the seventh lens are both convex.
  • the seventh lens may be an aspherical lens.
  • the optical path of the peripheral light reaching the imaging surface can be reduced, and the off-axis point aberration of the system can be corrected, and the optical performance such as distortion and CRA can be optimized.
  • the seventh lens enables the light to be efficiently and smoothly concentrated at the end, thereby reducing the overall weight and cost.
  • At least four of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, and the seventh lens are aspherical lenses. Further optionally, the second lens, the third lens and the seventh lens are aspherical lenses.
  • a stop is disposed between the fourth lens and the glue formed by the fifth lens and the sixth lens.
  • the aperture can be used to reduce the total length of the optical system and reduce the aperture of the front and rear lens groups.
  • the setting position of the diaphragm here is merely an example and not a limitation; for example, the diaphragm may be set at other positions as needed.
  • the optical lens may further include a filter disposed between the seventh lens and the imaging surface to filter light having different wavelengths, as needed. Additionally, optionally, the optical lens according to the present application may further include a cover glass disposed between the filter and the imaging surface.
  • the maximum aperture angle D of the object side of the first lens corresponding to the maximum angle of view of the optical lens, the image height h corresponding to the maximum angle of view of the optical lens, and the maximum field of view of the optical lens The angular FOV satisfies the conditional expression: D/h/FOV ⁇ 0.02, for example, the conditional expression can be further satisfied: D/h/FOV ⁇ 0.016.
  • D/h/FOV ⁇ 0.02 the front port diameter of the optical lens can be made small.
  • the optical length of the optical lens (ie, the distance from the center of the object side of the first lens of the optical lens to the imaging surface of the optical lens) TTL, the image height corresponding to the maximum angle of view of the optical lens h and the maximum field of view FOV of the optical lens satisfy the conditional formula: TTL/h/FOV ⁇ 0.025, for example, the conditional formula can be further satisfied: TTL/h/FOV ⁇ 0.020.
  • the optical lens can be miniaturized. More specifically, compared with other lenses, the optical length TTL of the optical lens can be shorter under the same imaging plane of the same viewing angle.
  • the optical back focus BFL of the optical lens ie, the distance from the center of the image side of the seventh lens of the optical lens to the imaging surface of the optical lens
  • the optical length TTL of the optical lens ie, from the optical The distance from the center of the object side of the first lens of the lens to the imaging surface of the optical lens satisfies the conditional expression: BFL/TTL ⁇ 0.1, for example, the conditional formula: BFL/TTL ⁇ 0.14 can be further satisfied.
  • the back focus setting facilitates assembly.
  • the optical lens of the above embodiment of the present application by appropriately designing and arranging a plurality of lenses, for example, the above seven lenses, the optical power can be properly distributed, the front port diameter can be reduced, and the optical total length of the optical lens can be shortened, thereby ensuring the lens. Miniaturization can improve resolution.
  • the optical lens according to the above embodiment of the present application has a lower cost and can reach more than 4M in the case of lifting up to the same resolution with respect to an optical lens that achieves high resolution by using a glass aspherical surface. Solution.
  • the first lens can have a negative power
  • the object side can be a convex surface
  • the image side surface can be a concave surface.
  • the first lens is arranged such that the meniscus shape on the convex side can collect large field of view light as much as possible, allowing light to enter the rear optical system. In practical applications, considering the outdoor installation environment of the vehicle lens, it will be in bad weather such as rain and snow.
  • the shape of the meniscus on the convex object side is beneficial to the drop of water droplets and reduce the influence on imaging.
  • the first lens may be made of a high refractive index material, for example, the refractive index Nd1 ⁇ 1.65 of the first lens, ideally, Nd1 ⁇ 1.7, in order to reduce the front port diameter and improve the image quality.
  • the second lens may have a negative power, the object side of which may alternatively be convex or concave, and the image side may be concave.
  • the second lens can properly compress the light collected by the first lens to smoothly transition the light to the rear optical system.
  • the image side surface of the second lens is disposed as a concave surface, which is advantageous for reducing the distance between the first lens and the second lens, and is more likely to shorten the physical length of the lens and achieve miniaturization.
  • the third lens may have a negative power
  • the object side may be a concave surface
  • the image side may be a convex surface.
  • the third lens having a negative power balances the spherical aberration introduced by the first two sets of lenses and the positional chromatic aberration, and the meniscus shape design convex toward the image side is advantageous for reducing the total length of the optical system.
  • the fourth lens may have a positive power, and both the object side and the image side may be convex.
  • the fourth lens concentrates the light so that the divergent light enters the rear optical system smoothly, compressing the light, and smoothly transitioning to the rear optical system.
  • the fifth lens may have a negative power
  • the object side may be a convex surface
  • the image side may be a concave surface
  • the sixth lens may have a positive power, and both the object side and the image side may be convex.
  • the seventh lens may have a positive power, the object side may be a convex surface, and the image side may optionally be a convex or concave surface.
  • the seventh lens is a converging lens, so that the light can be effectively and smoothly concentrated at the end, so that the light reaches the imaging surface smoothly, and the overall weight and cost of the optical system are alleviated.
  • a stop for limiting the light beam may be disposed between, for example, the fourth lens and the fifth lens to further improve the imaging quality of the lens.
  • the diaphragm is disposed between the fourth lens and the fifth lens, the light before and after the beam can be bundled, thereby effectively reducing the total length of the optical system and reducing the diameter of the front and rear lenses.
  • the position of the aperture disclosed herein is merely an example and not a limitation; in an alternative embodiment, the aperture may be placed at other locations as desired.
  • the optical lens according to the present application may further include a filter disposed between the seventh lens and the imaging surface to filter light having different wavelengths, as needed, and may further include A protective glass between the filter and the imaging surface to prevent damage to internal components (eg, chips) of the optical lens.
  • a cemented lens can be used to minimize chromatic aberration or eliminate chromatic aberration.
  • the use of a cemented lens in an optical lens improves the image quality and reduces the reflection loss of light energy, thereby improving the sharpness of the lens image.
  • the use of cemented lenses also simplifies assembly procedures during lens manufacturing.
  • the fifth lens and the sixth lens may be combined into a cemented lens by gluing the image side of the fifth lens with the object side of the sixth lens.
  • a cemented lens composed of a fifth lens and a sixth lens it is possible to help eliminate the influence of chromatic aberration, reduce curvature of field, and correct coma; and at the same time, the cemented lens can still partially chromatic aberration to balance the overall chromatic aberration of the optical system.
  • the gluing of the lens omits the air separation between the two lenses, making the optical system as compact as possible, meeting the system miniaturization needs.
  • the gluing of the lens reduces the tolerance sensitivity of the lens unit due to tilt/eccentricity generated during assembly.
  • the fifth lens near the object side has a negative power
  • the sixth lens near the image side has a positive power.
  • the air gap d2 between the first lens and the second lens and the optical total length TTL of the optical lens may satisfy: d2 / TTL ⁇ 0.2, and more desirably, d2 / TTL ⁇ may be further satisfied 0.18.
  • the maximum angle of view FOV of the optical lens, the entire set of focal length values F of the optical lens, and the image height h corresponding to the maximum angle of view of the optical lens may satisfy: (FOV ⁇ F)/h ⁇ 45, more desirably, can further satisfy (FOV ⁇ F) / h ⁇ 50.
  • a large angle resolution can be achieved by satisfying the conditional expression (FOV ⁇ F) / h ⁇ 45.
  • the maximum angle of view FOV of the optical lens, the maximum aperture aperture D of the object side of the first lens corresponding to the maximum angle of view of the optical lens, and the image height corresponding to the maximum angle of view of the optical lens Between h can be satisfied: D / h / FOV ⁇ 0.02, more desirably, D / h / FOV ⁇ 0.018 can be further satisfied.
  • the conditional formula D/h/FOV ⁇ 0.02 is satisfied, and the small diameter of the lens front end can be realized.
  • the optical back focus BFL of the optical lens and the optical total length TTL of the optical lens may satisfy: BFL/TTL ⁇ 0.1, and more desirably, BFL/TTL ⁇ 0.11 may be further satisfied.
  • the optical total length TTL of the optical lens, the maximum field of view angle FOV of the optical lens, and the image height h corresponding to the maximum field of view of the optical lens are satisfied: TTL/h/FOV ⁇ 0.025, Ideally, TTL/h/FOV ⁇ 0.02 can be further satisfied.
  • the conditional TTL/h/FOV ⁇ 0.025 is satisfied, and miniaturization can be achieved, and compared with other lenses, the TTL with the same field of view and the same image height is shorter.
  • an optical lens according to the present application may have at least 4 aspherical lenses.
  • Aspherical lenses are characterized by a continuous change in curvature from the center of the lens to the periphery. Unlike spherical lenses that have a constant curvature from the center of the lens to the periphery, aspherical lenses have better curvature radius characteristics, have the advantage of improving distortion and improving astigmatic aberrations. With the aspherical lens, the aberrations that occur during imaging can be eliminated as much as possible, thereby improving the image quality of the lens.
  • the seventh lens may be an aspherical lens to reduce the optical path of the peripheral light reaching the imaging surface, and at the same time, correct the off-axis point aberration of the system, and optimize optical properties such as distortion and CRA.
  • the second lens, the third lens, and the seventh lens are both aspherical lenses to effectively enhance the imaging quality of the lens.
  • one or more of the first lens, the fifth lens, and the sixth lens may also employ an aspherical lens to improve image quality. It should be understood that in order to improve image quality, the optical lens according to the present application may increase the number of aspherical lenses.
  • the lens used in the optical lens may be a plastic lens or a glass lens.
  • the lens of plastic material has a large thermal expansion coefficient. When the ambient temperature used by the lens changes greatly, the lens of plastic material causes a large amount of optical back focus change of the lens.
  • the use of glass lenses reduces the effect of temperature on the optical back focus of the lens.
  • the first lens of the optical lens according to the present application may employ a glass lens to reduce the influence of the environment on the overall system and improve the overall performance of the optical lens.
  • the first lens may be a glass aspherical lens to further enhance image quality and reduce front port diameter.
  • the optical lens according to the above embodiment of the present application optimizes the shape of the lens, reasonably distributes the power, and reasonably selects the lens material, thereby reducing the front port diameter, shortening the TTL, ensuring the miniaturization of the lens, and achieving high resolution and large size.
  • This application effectively reduces the tolerance sensitivity by setting the position of the positive and negative lenses of the glued lens.
  • the optical lens according to the above embodiment of the present application can better conform to the requirements of the vehicle lens.
  • the first lens can have a negative power
  • the object side can be a convex surface
  • the image side can be a concave surface.
  • the first lens is arranged such that the meniscus shape with the convex surface facing the object side can collect large field of view light as much as possible, so that the light enters the rear optical system.
  • the first lens may be a glass aspherical lens to further improve the image quality and reduce the front port diameter.
  • the first lens can also use a high refractive index material, for example, Nd1 ⁇ 1.65, and more desirably, Nd1 ⁇ 1.7 can be further satisfied to reduce the front port diameter and improve the image quality.
  • the second lens may have a negative power, the object side may be a convex surface, and the image side may be a concave surface.
  • the second lens can properly compress the light collected by the first lens to make the light transition smoothly.
  • the image side surface of the second lens is disposed as a concave surface, which is advantageous for reducing the distance between the first lens and the second lens, and is more likely to shorten the physical length of the optical lens and achieve miniaturization.
  • the third lens may have a negative power, the object side may be a concave surface, and the image side may be a convex surface.
  • the third lens has a negative power which balances the spherical aberration introduced by the first two sets of lenses and the positional chromatic aberration, while the concave surface is disposed toward the shape of the meniscus on the object side, which is advantageous for reducing the total length of the optical system.
  • the fourth lens may have a positive power, and both the object side and the image side may be convex.
  • the fourth lens can converge the light, so that the divergent light can smoothly enter the rear optical system, and the light can be compressed to make the light transition smoothly.
  • the fifth lens may have a positive power, and both the object side and the image side may be convex.
  • the sixth lens may have a negative power, and both the object side and the image side may be concave.
  • the seventh lens may have a positive power, and both the object side and the image side may be convex.
  • the seventh lens is a converging lens, so that the light can be effectively and smoothly concentrated at the end, so that the light reaches the imaging surface smoothly, reducing the overall weight and cost; and the seventh lens of the last lens has a short focal length, which can help to collect light and ensure The amount of light passing through the system.
  • a stop for limiting the light beam may be disposed between, for example, the fourth lens and the fifth lens to further improve the imaging quality of the lens.
  • the set aperture can have effective beam before and after the beam, shorten the total length of the optical system, and reduce the aperture of the front and rear lens groups.
  • the position of the aperture disclosed herein is merely an example and not a limitation; in an alternative embodiment, the aperture may be placed at other locations as desired.
  • the optical lens according to the present application may further include a filter disposed between the seventh lens and the imaging surface to filter light having different wavelengths, as needed, and may further include A protective glass between the filter and the imaging surface to prevent damage to internal components (eg, chips) of the optical lens.
  • a cemented lens can be used to minimize chromatic aberration or eliminate chromatic aberration.
  • the use of a cemented lens in an optical lens improves the image quality and reduces the reflection loss of light energy, thereby improving the sharpness of the lens image.
  • the use of cemented lenses also simplifies assembly procedures during lens manufacturing.
  • the fifth lens and the sixth lens may be combined into a cemented lens by gluing the image side of the fifth lens with the object side of the sixth lens.
  • the fifth lens of the positive lens is arranged in front
  • the sixth lens of the negative lens is arranged rearward.
  • Such an arrangement can further converge the front light and then transition to the rear.
  • the positive and negative lens double-glued lens combination can achromatize itself, reduce tolerance sensitivity, and can also partially chromatic aberration to balance the chromatic aberration of the system.
  • the maximum angle of view FOV of the optical lens, the maximum aperture aperture D of the first lens side corresponding to the maximum angle of view of the optical lens, and the image height corresponding to the maximum angle of view of the optical lens Between h can be satisfied: D / h / FOV ⁇ 0.025, more desirably, D / h / FOV ⁇ 0.02 can be further satisfied.
  • the conditional formula D/h/FOV ⁇ 0.025 is satisfied, and the front end small diameter can be ensured.
  • the maximum field of view angle FOV of the optical lens, the entire set of focal length values F of the optical lens, and the image height h corresponding to the maximum field of view of the optical lens may satisfy: (FOV ⁇ F)/h ⁇ 50, more desirably, can further satisfy (FOV ⁇ F) / h ⁇ 55.
  • a large angle resolution can be achieved by satisfying the conditional expression (FOV ⁇ F) / h ⁇ 50.
  • the focal length value F2 of the second lens and the focal length value F3 of the third lens may satisfy: F3/F2 ⁇ 1.6, and more desirably, F3/F2 ⁇ 1.4 may be further satisfied.
  • the optical back focus BFL of the optical lens and the optical total length TTL of the optical lens may satisfy: BFL/TTL ⁇ 0.05, and more desirably, BFL/TTL ⁇ 0.08 may be further satisfied.
  • BFL/TTL ⁇ 0.05 When the conditional expression BFL/TTL ⁇ 0.05 is satisfied, the long back focus can be achieved on the basis of miniaturization, which is advantageous for assembly of the optical module.
  • the optical total length TTL of the optical lens, the maximum field of view angle FOV of the optical lens, and the image height h corresponding to the maximum angle of view of the optical lens are satisfied: TTL/h/FOV ⁇ 0.025, More desirably, TTL/h/FOV ⁇ 0.02 can be further satisfied.
  • TTL/h/FOV ⁇ 0.025 the miniaturization characteristic can be realized. Compared with other lenses, the TTL is shorter under the same imaging plane at the same angle of view.
  • the air interval d12 between the sixth lens and the seventh lens and the optical total length TTL of the optical lens may satisfy: d12/TTL ⁇ 0.035, and more desirably, d12/TTL ⁇ may be further satisfied. 0.03. Satisfying the conditional expression d12/TTL ⁇ 0.035 helps to smoothly transition the light diverging through the fifth lens and the sixth lens (glued lens) to the rear lens.
  • the focal length value F7 of the seventh lens and the entire set of focal length values F of the optical lens may satisfy: F7/F ⁇ 3, and more desirably, F7/F ⁇ 2.8 may be further satisfied.
  • the combined focal length value F56 of the fifth lens and the sixth lens and the entire set of focal length value F of the optical lens may satisfy: F56/F ⁇ -10, and more desirably, F56/F may be further satisfied. ⁇ -12.
  • an optical lens according to the present application may have at least three aspherical lenses.
  • Aspherical lenses are characterized by a continuous change in curvature from the center of the lens to the periphery. Unlike spherical lenses that have a constant curvature from the center of the lens to the periphery, aspherical lenses have better curvature radius characteristics, have the advantage of improving distortion and improving astigmatic aberrations. With the aspherical lens, the aberrations that occur during imaging can be eliminated as much as possible, thereby improving the image quality of the lens.
  • the first lens may employ an aspherical lens to improve image quality.
  • the seventh lens may employ an aspherical lens to reduce the optical path of the peripheral light reaching the imaging surface, while correcting the off-axis point aberration of the system, and optimizing optical properties such as distortion and CRA.
  • the optical lens according to the present application may increase the number of aspherical lenses.
  • the lens used in the optical lens may be a plastic lens or a glass lens.
  • the lens of plastic material has a large thermal expansion coefficient. When the ambient temperature used by the lens changes greatly, the lens of plastic material causes a large amount of optical back focus change of the lens.
  • the use of glass lenses reduces the effect of temperature on the optical back focus of the lens, but at a higher cost.
  • the first lens can be a glass lens.
  • the first lens to the seventh lens may each use a glass lens to make the optical lens have more stable temperature performance under high and low temperature use environments.
  • the lens shape is optimally arranged, the optical power is properly distributed, the front port diameter can be reduced, the TTL can be shortened, and the resolution of the lens can be reduced while the resolution is improved.
  • the optical lens has a pixel size of more than four megapixels for higher resolution.
  • the optical lens has a longer focal length than a conventional wide-angle lens, and the central region has a large angular resolution, which can improve the recognition of environmental objects and specifically increase the central portion detection area.
  • the optical lens according to the present application can adopt a full glass structure, has more stable thermal performance in a high and low temperature use environment, and greatly improves the safety of automatic driving. Therefore, the optical lens according to the above embodiment of the present application can better conform to requirements such as an in-vehicle application.
  • optical lens is not limited to including seven lenses.
  • the optical lens can also include other numbers of lenses if desired.
  • FIG. 1 is a schematic view showing the structure of an optical lens according to Embodiment 1 of the present application.
  • the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixth lens L6 from the object side to the imaging side along the optical axis. And a seventh lens L7.
  • the first lens L1 is a meniscus lens having a negative refractive power
  • the object side surface S1 is a convex surface
  • the image side surface S2 is a concave surface.
  • the second lens L2 is a meniscus lens having a negative refractive power
  • the object side surface S3 is a convex surface
  • the image side surface S4 is a concave surface.
  • the third lens L3 is a biconcave lens having a negative refractive power, and both the object side surface S5 and the image side surface S6 are concave.
  • the third lens L3 is an aspherical lens, and both the object side surface S5 and the image side surface S6 are aspherical.
  • the fourth lens L4 is a lenticular lens having positive refractive power, and both the object side surface S7 and the image side surface S8 are convex.
  • the fifth lens L5 is a lenticular lens having positive refractive power, and both the object side surface S10 and the image side surface S11 are convex. Further, the fifth lens L5 is an aspherical lens, and both the object side surface S10 and the image side surface S11 are aspherical.
  • the sixth lens L6 is a biconcave lens having a negative refractive power, and both the object side surface S11 and the image side surface S12 are concave.
  • the sixth lens L6 is an aspherical lens, and both the object side surface S11 and the image side surface S12 are aspherical.
  • the fifth lens L5 and the sixth lens L6 are glued to each other to form a cemented lens.
  • the seventh lens L7 is a lenticular lens having positive refractive power, and both the object side surface S13 and the image side surface S14 are convex. Further, the seventh lens L7 is an aspherical lens, and both the object side surface S13 and the image side surface S14 are aspherical.
  • the optical lens may further include a filter L8 having an object side surface S15 and an image side surface S16 and a protective lens L9 having an object side surface S17 and an image side surface S18.
  • Filter L8 can be used to correct color deviations.
  • the protective lens L9 can be used to protect the image sensing chip located on the imaging surface IMA. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the image plane IMA.
  • the stop STO can be disposed between the fourth lens L4 and the fifth lens L5 (i.e., between the fourth lens L4 and the cemented lens) to improve the image quality.
  • Table 1 shows the curvature radius R, the thickness T, the refractive index Nd, and the Abbe number Vd of each lens of the optical lens of Example 1, wherein the units of the radius of curvature R and the thickness T are all millimeters (mm).
  • each lens is used as an example.
  • the lens can be miniaturized, high-resolution, and low-cost. At least one of the beneficial effects such as small diameter at the front end and good temperature performance.
  • Each aspherical surface type Z is defined by the following formula:
  • Z is the position of the aspherical surface at height h in the optical axis direction, the distance vector from the aspherical vertex is high;
  • k is the conic coefficient conic;
  • A, B, C, D, E are high order coefficients.
  • Table 2 shows the conic coefficient k and the high order coefficient A, B, C, D, and E which can be used for the aspherical lens surfaces S5, S6, S10-S14 in Embodiment 1.
  • Table 3 below shows the entire set of focal length values F of the optical lens of Example 1, the refractive index Nd of the material of the first lens L1, the radius of curvature r31 of the object side surface S5 of the third lens L3, and the image side of the third lens L3.
  • the length TTL i.e., the distance from the center of the object side S1 of the first lens L1 to the on-axis of the imaging plane S19).
  • the radius of curvature r31 of the object side surface S5 of the third lens L3, the radius of curvature r32 of the image side surface S6 of the third lens L3, and the center thickness d3 of the third lens L3 satisfy (
  • the maximum field of view angle FOV of the optical lens the maximum aperture diameter D of the object side surface S1 of the first lens L1 corresponding to the maximum angle of view of the optical lens, and the image corresponding to the maximum angle of view of the optical lens
  • FIG. 2 is a schematic view showing the structure of an optical lens according to Embodiment 2 of the present application.
  • the optical lens includes, in order from the object side to the imaging side along the optical axis, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixth lens.
  • L6 and seventh lens L7 are examples of lens L7.
  • the first lens L1 is a meniscus lens having a negative refractive power
  • the object side surface S1 is a convex surface
  • the image side surface S2 is a concave surface.
  • the second lens L2 is a meniscus lens having a negative refractive power
  • the object side surface S3 is a convex surface
  • the image side surface S4 is a concave surface.
  • the third lens L3 is a biconcave lens having a negative refractive power, and both the object side surface S5 and the image side surface S6 are concave.
  • the third lens L3 is an aspherical lens, and both the object side surface S5 and the image side surface S6 are aspherical.
  • the fourth lens L4 is a meniscus lens having positive refractive power, and the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface.
  • the fifth lens L5 is a lenticular lens having positive refractive power, and both the object side surface S10 and the image side surface S11 are convex. Further, the fifth lens L5 is an aspherical lens, and both the object side surface S10 and the image side surface S11 are aspherical.
  • the sixth lens L6 is a biconcave lens having a negative refractive power, and both the object side surface S11 and the image side surface S12 are concave.
  • the sixth lens L6 is an aspherical lens, and both the object side surface S11 and the image side surface S12 are aspherical.
  • the fifth lens L5 and the sixth lens L6 are glued to each other to form a cemented lens.
  • the seventh lens L7 is a lenticular lens having positive refractive power, and both the object side surface S13 and the image side surface S14 are convex. Further, the seventh lens L7 is an aspherical lens, and both the object side surface S13 and the image side surface S14 are aspherical.
  • the optical lens may further include a filter L8 having an object side surface S15 and an image side surface S16 and a protective lens L9 having an object side surface S17 and an image side surface S18.
  • Filter L8 can be used to correct color deviations.
  • the protective lens L9 can be used to protect the image sensing chip located on the imaging surface IMA. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the image plane IMA.
  • the stop STO can be disposed between the fourth lens L4 and the fifth lens L5 (i.e., between the fourth lens L4 and the cemented lens) to improve the image quality.
  • the lens By properly distributing the power and surface of each lens, the center thickness of each lens, and the air gap between the lenses, the lens can be miniaturized, high-resolution, and low-cost. At least one of the beneficial effects such as small diameter at the front end and good temperature performance.
  • Table 4 shows the radius of curvature R, the thickness T, the refractive index Nd, and the Abbe number Vd of each lens of the optical lens of Example 2, wherein the units of the radius of curvature R and the thickness T are both millimeters (mm).
  • Table 5 shows the conic coefficient k and the high order coefficient A, B, C, D and E which can be used for the aspherical lens surfaces S5, S6, S10-S14 in the second embodiment.
  • each aspherical surface type can be defined by the formula (1) given in the above embodiment 1.
  • Table 6 below shows the entire set of focal length values F of the optical lens of Example 2, the refractive index Nd of the material of the first lens L1, the radius of curvature r31 of the object side surface S5 of the third lens L3, and the image side of the third lens L3.
  • the length TTL i.e., the distance from the center of the object side S1 of the first lens L1 to the on-axis of the imaging plane S19).
  • the radius of curvature r31 of the object side surface S5 of the third lens L3, the radius of curvature r32 of the image side surface S6 of the third lens L3, and the center thickness d3 of the third lens L3 satisfy (
  • the maximum field of view angle FOV of the optical lens the maximum aperture diameter D of the object side surface S1 of the first lens L1 corresponding to the maximum angle of view of the optical lens, and the image corresponding to the maximum angle of view of the optical lens
  • FIG. 3 is a schematic view showing the structure of an optical lens according to Embodiment 3 of the present application.
  • the optical lens includes, in order from the object side to the imaging side along the optical axis, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixth lens.
  • L6 and seventh lens L7 are examples of lens L7.
  • the first lens L1 is a meniscus lens having a negative refractive power
  • the object side surface S1 is a convex surface
  • the image side surface S2 is a concave surface
  • the second lens L2 is a meniscus lens having a negative refractive power
  • the object side surface S3 is a convex surface
  • the image side surface S4 is a concave surface.
  • the second lens L2 is an aspherical lens
  • both the object side surface S3 and the image side surface S4 are aspherical third lenses L3 which are biconcave lenses having negative refractive power
  • both the object side surface S5 and the image side surface S6 are concave surfaces.
  • the third lens L3 is an aspherical lens, and both the object side surface S5 and the image side surface S6 are aspherical.
  • the fourth lens L4 is a meniscus lens having positive refractive power, and the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface.
  • the fifth lens L5 is a lenticular lens having positive refractive power, and both the object side surface S10 and the image side surface S11 are convex. Further, the fifth lens L5 is an aspherical lens, and both the object side surface S10 and the image side surface S11 are aspherical.
  • the sixth lens L6 is a biconcave lens having a negative refractive power, and both the object side surface S11 and the image side surface S12 are concave. Further, the sixth lens L6 is an aspherical lens, and both the object side surface S11 and the image side surface S12 are aspherical. The fifth lens L5 and the sixth lens L6 are glued to each other to form a cemented lens.
  • the seventh lens L7 is a lenticular lens having positive refractive power, and both the object side surface S13 and the image side surface S14 are convex. Further, the seventh lens L7 is an aspherical lens, and both the object side surface S13 and the image side surface S14 are aspherical.
  • the optical lens may further include a filter L8 having an object side surface S15 and an image side surface S16 and a protective lens L9 having an object side surface S17 and an image side surface S18.
  • Filter L8 can be used to correct color deviations.
  • the protective lens L9 can be used to protect the image sensing chip located on the imaging surface IMA. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the image plane IMA.
  • the stop STO can be disposed between the fourth lens L4 and the fifth lens L5 (i.e., between the fourth lens L4 and the cemented lens) to improve the image quality.
  • the lens By properly distributing the power and surface of each lens, the center thickness of each lens, and the air gap between the lenses, the lens can be miniaturized, high-resolution, and low-cost. At least one of the beneficial effects such as small diameter at the front end and good temperature performance.
  • Table 7 below shows the radius of curvature R, the thickness T, the refractive index Nd, and the Abbe number Vd of each lens of the optical lens of Example 3, wherein the units of the radius of curvature R and the thickness T are all millimeters (mm).
  • Table 8 below shows the conic coefficient k and the high order coefficient A, B, C, D, and E which can be used for the aspherical lens surfaces S3-S6, S10-S14 in Embodiment 3.
  • each aspherical surface type can be defined by the formula (1) given in the above embodiment 1.
  • Table 9 below shows the entire set of focal length value F of the optical lens of Example 3, the refractive index Nd of the material of the first lens L1, the radius of curvature r31 of the object side surface S5 of the third lens L3, and the image side of the third lens L3.
  • the length TTL i.e., the distance from the center of the object side S1 of the first lens L1 to the on-axis of the imaging plane S19).
  • the radius of curvature r31 of the object side surface S5 of the third lens L3, the radius of curvature r32 of the image side surface S6 of the third lens L3, and the center thickness d3 of the third lens L3 satisfy (
  • the maximum field of view angle FOV of the optical lens the maximum aperture diameter D of the object side surface S1 of the first lens L1 corresponding to the maximum angle of view of the optical lens, and the image corresponding to the maximum angle of view of the optical lens
  • FIG. 4 is a schematic view showing the structure of an optical lens according to Embodiment 4 of the present application.
  • the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixth lens L6 from the object side to the imaging side along the optical axis. And a seventh lens L7.
  • the first lens L1 is a meniscus lens having a convex surface having a negative refractive power facing the object side, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens L2 is a meniscus lens having a convex surface having a negative refractive power facing the object side, and the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens L3 is a meniscus lens having a convex surface having a negative refractive power facing the image side, and the object side surface S5 is a concave surface, and the image side surface S6 is a convex surface.
  • the fourth lens L4 is a meniscus lens having a convex surface having a positive refractive power facing the object side, and the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface.
  • the fifth lens L5 is a lenticular lens having positive refractive power, and both the object side surface S10 and the image side surface S11 are convex.
  • the sixth lens L6 is a biconcave lens having a negative refractive power, and both the object side surface S11 and the image side surface 12 are concave.
  • the seventh lens L7 is a lenticular lens having positive refractive power, and both the object side surface S13 and the image side surface S14 are convex.
  • the second lens L2, the third lens L3, the fifth lens L5, the sixth lens L6, and the seventh lens L7 are aspherical lenses.
  • the fifth lens L5 and the sixth lens L6 are glued together, and therefore, the image side surface S11 of the fifth lens L5 and the object side surface S11 of the sixth lens L6 are the same surface.
  • a filter L8 is provided behind the seventh lens L7, and has a material side surface S15 and an image side surface S16.
  • a protective glass L9 having an object side surface S17 and an image side surface S18 is disposed behind the filter L8.
  • An image plane IMA ie, an image plane S19 is disposed behind the cover glass L9 to receive an image formed by the optical system.
  • a stop STO is disposed between the fourth lens L4 and the glue member formed by the fifth lens L5 and the sixth lens L6 to close the front and rear light, shorten the total length of the optical system, and reduce the diameter of the front and rear lens groups. Improve image quality.
  • Table 10 shows surface parameters of each lens of the optical lens of Example 4, including a radius of curvature R, a thickness T, a refractive index Nd, and an Abbe number Vd, wherein the units of the radius of curvature R and the thickness T are each mm (mm). ).
  • Table 11 shows the conic coefficient K and the high-order coefficient A, B, C of the surfaces S3, S4, S5, S6, S10, S11, S12, S13, and S14 applicable to the respective aspherical lenses in the present embodiment.
  • each aspherical surface type can be defined by the formula (1) given in the above embodiment 1.
  • Table 12 shows the entire set of focal length values F of the optical lens of the present embodiment, the refractive index Nd of the material of the first lens forming the optical lens, the radius of curvature r41 of the object side of the fourth lens of the optical lens, and the optical lens
  • the radius of curvature r42 of the image side surface of the four lens, the center thickness d4 of the fourth lens of the optical lens, the maximum light passing diameter D of the object side of the first lens corresponding to the maximum angle of view of the optical lens, and the maximum field of view of the optical lens The image height h corresponding to the angle, the maximum angle of view FOV of the optical lens, and the optical back focus BFL of the optical lens (ie, the distance from the center of the image side S14 of the seventh lens L7 of the optical lens to the imaging surface IMA of the optical lens) And the optical length TTL of the optical lens (ie, the distance from the center of the object side surface S1 of the first lens L1 of the optical lens to the imaging surface IMA of the optical
  • FIG. 5 is a block diagram showing the structure of an optical lens according to Embodiment 5 of the present application.
  • the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixth lens L6 from the object side to the imaging side along the optical axis. And a seventh lens L7.
  • the first lens L1 is a meniscus lens having a convex surface having a negative refractive power facing the object side, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens L2 is a meniscus lens having a convex surface having a negative refractive power facing the object side, and the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens L3 is a meniscus lens having a convex surface having a negative refractive power facing the image side, and the object side surface S5 is a concave surface, and the image side surface S6 is a convex surface.
  • the fourth lens L4 is a meniscus lens having a convex surface having a positive refractive power facing the object side, and the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface.
  • the fifth lens L5 is a lenticular lens having positive refractive power, and both the object side surface S10 and the image side surface S11 are convex.
  • the sixth lens L6 is a biconcave lens having a negative refractive power, and both the object side surface S11 and the image side surface 12 are concave.
  • the seventh lens L7 is a lenticular lens having positive refractive power, and both the object side surface S13 and the image side surface S14 are convex.
  • the second lens L2, the third lens L3, the fifth lens L5, the sixth lens L6, and the seventh lens L7 are aspherical lenses.
  • the fifth lens L5 and the sixth lens L6 are glued together, and therefore, the image side surface S11 of the fifth lens L5 and the object side surface S11 of the sixth lens L6 are the same surface.
  • a filter L8 is provided behind the seventh lens L7, and has a material side surface S15 and an image side surface S16.
  • a protective glass L9 having an object side surface S17 and an image side surface S18 is disposed behind the filter L8.
  • An image plane IMA ie, an image plane S19 is disposed behind the cover glass L9 to receive an image formed by the optical system.
  • a stop STO is disposed between the fourth lens L4 and the glue member formed by the fifth lens L5 and the sixth lens L6 to close the front and rear light, shorten the total length of the optical system, and reduce the diameter of the front and rear lens groups. Improve image quality.
  • Table 13 shows surface parameters of each lens of the optical lens of Example 5, including a radius of curvature R, a thickness T, a refractive index Nd, and an Abbe number Vd, wherein the units of the radius of curvature R and the thickness T are each mm (mm). ).
  • Table 14 shows the conic coefficient K and the high-order coefficient A, B, C of the surfaces S3, S4, S5, S6, S10, S11, S12, S13, and S14 applicable to the respective aspherical lenses in the present embodiment.
  • each aspherical surface type can be defined by the formula (1) given in the above embodiment 1.
  • Table 15 shows the entire set of focal length values F of the optical lens of the present embodiment, the refractive index Nd of the material of the first lens forming the optical lens, the radius of curvature r41 of the object side of the fourth lens of the optical lens, and the optical lens
  • the radius of curvature r42 of the image side surface of the four lens, the center thickness d4 of the fourth lens of the optical lens, the maximum light passing diameter D of the object side of the first lens corresponding to the maximum angle of view of the optical lens, and the maximum field of view of the optical lens The image height h corresponding to the angle, the maximum angle of view FOV of the optical lens, and the optical back focus BFL of the optical lens (ie, the distance from the center of the image side S14 of the seventh lens L7 of the optical lens to the imaging surface IMA of the optical lens)
  • the optical length TTL of the optical lens ie, the distance from the center of the object side surface S1 of the first lens L1 of the optical lens to the imaging surface IMA of the
  • FIG. Fig. 6 is a view showing the structure of an optical lens according to Embodiment 6 of the present application.
  • the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixth lens L6 from the object side to the imaging side along the optical axis. And a seventh lens L7.
  • the first lens L1 is a meniscus lens having a convex surface having a negative refractive power facing the object side, and the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens L2 is a meniscus lens having a convex surface having a negative refractive power facing the object side, and the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface.
  • the third lens L3 is a meniscus lens having a convex surface having a negative refractive power facing the image side, and the object side surface S5 is a concave surface, and the image side surface S6 is a convex surface.
  • the fourth lens L4 is a meniscus lens having a convex surface having a positive refractive power facing the object side, and the object side surface S7 is a convex surface, and the image side surface S8 is a concave surface.
  • the fifth lens L5 is a lenticular lens having positive refractive power, and both the object side surface S10 and the image side surface S11 are convex.
  • the sixth lens L6 is a biconcave lens having a negative refractive power, and both the object side surface S11 and the image side surface 12 are concave.
  • the seventh lens L7 is a lenticular lens having positive refractive power, and both the object side surface S13 and the image side surface S14 are convex.
  • the second lens L2, the third lens L3, the fifth lens L5, the sixth lens L6, and the seventh lens L7 are aspherical lenses.
  • the fifth lens L5 and the sixth lens L6 are glued together, and therefore, the image side surface S11 of the fifth lens L5 and the object side surface S11 of the sixth lens L6 are the same surface.
  • a filter L8 is provided behind the seventh lens L7, and has a material side surface S15 and an image side surface S16.
  • a protective glass L9 having an object side surface S17 and an image side surface S18 is disposed behind the filter L8.
  • An image plane IMA ie, an image plane S19 is disposed behind the cover glass L9 to receive an image formed by the optical system.
  • a stop STO is disposed between the fourth lens L4 and the glue member formed by the fifth lens L5 and the sixth lens L6 to close the front and rear light, shorten the total length of the optical system, and reduce the diameter of the front and rear lens groups. Improve image quality.
  • Table 16 shows surface parameters of each lens of the optical lens of Example 6, including a radius of curvature R, a thickness T, a refractive index Nd, and an Abbe number Vd, wherein the units of the radius of curvature R and the thickness T are each mm (mm). ).
  • Table 17 shows the conic coefficient K and the high-order coefficient A, B, C of the surfaces S3, S4, S5, S6, S10, S11, S12, S13, and S14 applicable to the respective aspherical lenses in the present embodiment.
  • each aspherical surface type can be defined by the formula (1) given in the above embodiment 1.
  • Table 18 shows the entire set of focal length values F of the optical lens of the present embodiment, the refractive index Nd of the material of the first lens forming the optical lens, the radius of curvature r41 of the object side of the fourth lens of the optical lens, and the optical lens
  • the radius of curvature r42 of the image side surface of the four lens, the center thickness d4 of the fourth lens of the optical lens, the maximum light passing diameter D of the object side of the first lens corresponding to the maximum angle of view of the optical lens, and the maximum field of view of the optical lens The image height h corresponding to the angle, the maximum angle of view FOV of the optical lens, and the optical back focus BFL of the optical lens (ie, the distance from the center of the image side S14 of the seventh lens L7 of the optical lens to the imaging surface IMA of the optical lens) And the optical length TTL of the optical lens (ie, the distance from the center of the object side surface S1 of the first lens L1 of the optical lens to the imaging surface IMA of the optical
  • FIG. 7 is a block diagram showing the structure of an optical lens according to Embodiment 7 of the present application.
  • the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixth lens L6 from the object side to the imaging side along the optical axis. And a seventh lens L7.
  • the first lens L1 is a meniscus lens having a negative refractive power
  • the object side surface S1 is a convex surface
  • the image side surface S2 is a concave surface.
  • the second lens L2 is a meniscus lens having a negative refractive power
  • the object side surface S3 is a convex surface
  • the image side surface S4 is a concave surface.
  • the third lens L3 is a meniscus lens having a negative refractive power
  • the object side surface S5 is a concave surface
  • the image side surface S6 is a convex surface.
  • the fourth lens L4 is a lenticular lens having positive refractive power, and both the object side surface S7 and the image side surface S8 are convex.
  • the fifth lens L5 is a meniscus lens having a negative refractive power
  • the object side surface S10 is a convex surface
  • the image side surface S11 is a concave surface.
  • the sixth lens L6 is a lenticular lens having positive refractive power, and both the object side surface S11 and the image side surface S12 are convex.
  • the fifth lens L5 and the sixth lens L6 are glued to each other to form a cemented lens.
  • the seventh lens L7 is a lenticular lens having positive refractive power, and both the object side surface S13 and the image side surface S14 are convex.
  • the second lens L2, the third lens L3, the fifth lens L5, the sixth lens L6, and the seventh lens L7 are all aspherical lenses, and their respective object side faces and image side faces are aspherical surfaces.
  • the optical lens may further include a filter L8 having an object side surface S15 and an image side surface S16, and a protective lens L9 having an object side surface S17 and an image side surface S18.
  • Filter L8 can be used to correct color deviations.
  • the protective lens L9 can be used to protect the image sensing chip located on the imaging surface IMA. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the image plane IMA.
  • the stop STO can be provided between the fourth lens L4 and the fifth lens L5 to improve the image quality.
  • Table 19 shows the curvature radius R, the thickness T, the refractive index Nd, and the Abbe number Vd of each lens of the optical lens of Example 7, wherein the units of the radius of curvature R and the thickness T are each mm (mm).
  • the lens can have a small diameter at the front end, miniaturization, and high solution. At least one of advantageous effects such as a super large field of view.
  • Table 20 below shows the conic coefficient k and the high order coefficient A, B, C, D, and E which can be used for the aspherical lens surfaces S3-S6, S10-S14 in the seventh embodiment.
  • each aspherical surface type can be defined by the formula (1) given in the above embodiment 1.
  • Table 21 below shows the material refractive index Nd of the first lens L1 of the optical lens of Embodiment 7, the maximum light passing diameter D of the object side surface S1 of the first lens L1 corresponding to the maximum angle of view of the optical lens, and the optical lens.
  • the image height h corresponding to the maximum angle of view, the maximum angle of view FOV of the optical lens, and the optical back focus BFL of the optical lens ie, the center of the image side S14 of the last lens seventh lens L7 to the axis of the imaging plane IMA
  • the upper distance the total optical length TTL of the optical lens (ie, the distance from the center of the object side S1 of the first lens L1 to the on-axis of the imaging plane IMA), the entire set of focal length values F of the optical lens, and the first lens L1 and The air gap d2 between the two lenses L2.
  • FIG. 8 is a block diagram showing the structure of an optical lens according to Embodiment 8 of the present application.
  • the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixth lens L6 from the object side to the imaging side along the optical axis. And a seventh lens L7.
  • the first lens L1 is a meniscus lens having a negative refractive power
  • the object side surface S1 is a convex surface
  • the image side surface S2 is a concave surface.
  • the second lens L2 is a biconcave lens having a negative refractive power, and both the object side surface S3 and the image side surface S4 are concave.
  • the third lens L3 is a meniscus lens having a negative refractive power
  • the object side surface S5 is a concave surface
  • the image side surface S6 is a convex surface.
  • the fourth lens L4 is a lenticular lens having positive refractive power, and both the object side surface S7 and the image side surface S8 are convex.
  • the fifth lens L5 is a meniscus lens having a negative refractive power
  • the object side surface S10 is a convex surface
  • the image side surface S11 is a concave surface.
  • the sixth lens L6 is a lenticular lens having positive refractive power, and both the object side surface S11 and the image side surface S12 are convex.
  • the fifth lens L5 and the sixth lens L6 are glued to each other to form a cemented lens.
  • the seventh lens L7 is a meniscus lens having positive refractive power
  • the object side surface S13 is a convex surface
  • the image side surface S14 is a concave surface.
  • the second lens L2, the third lens L3, the fifth lens L5, the sixth lens L6, and the seventh lens L7 are all aspherical lenses, and their respective object side faces and image side faces are aspherical surfaces.
  • the optical lens may further include a filter L8 having an object side surface S15 and an image side surface S16, and a protective lens L9 having an object side surface S17 and an image side surface S18.
  • Filter L8 can be used to correct color deviations.
  • the protective lens L9 can be used to protect the image sensing chip located on the imaging surface IMA. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the image plane IMA.
  • the stop STO can be provided between the fourth lens L4 and the fifth lens L5 to improve the image quality.
  • the lens can have a small diameter at the front end, miniaturization, and high solution. At least one of advantageous effects such as a super large field of view.
  • Table 22 below shows the radius of curvature R, the thickness T, the refractive index Nd, and the Abbe number Vd of each lens of the optical lens of Example 8, wherein the units of the radius of curvature R and the thickness T are each mm (mm).
  • Table 23 below shows the conic coefficient k and the high order coefficient A, B, C, D, and E which can be used for the aspherical lens surfaces S3-S6, S10-S14 in Embodiment 8.
  • each aspherical surface type can be defined by the formula (1) given in the above embodiment 1.
  • Table 24 below shows the material refractive index Nd of the first lens L1 of the optical lens of Example 8, the maximum light passing diameter D of the object side surface S1 of the first lens L1 corresponding to the maximum angle of view of the optical lens, and the optical lens.
  • the image height h corresponding to the maximum angle of view, the maximum angle of view FOV of the optical lens, and the optical back focus BFL of the optical lens ie, the center of the image side S14 of the last lens seventh lens L7 to the axis of the imaging plane IMA
  • the total optical length TTL of the optical lens ie, the distance from the center of the object side S1 of the first lens L1 to the on-axis of the imaging plane IMA
  • the entire set of focal length values F of the optical lens and the first lens L1 and The air gap d2 between the two lenses L2.
  • FIG. 9 is a block diagram showing the structure of an optical lens according to Embodiment 9 of the present application.
  • the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixth lens L6 from the object side to the imaging side along the optical axis. And a seventh lens L7.
  • the first lens L1 is a meniscus lens having a negative refractive power
  • the object side surface S1 is a convex surface
  • the image side surface S2 is a concave surface.
  • the second lens L2 is a biconcave lens having a negative refractive power, and both the object side surface S3 and the image side surface S4 are concave.
  • the third lens L3 is a meniscus lens having a negative refractive power
  • the object side surface S5 is a concave surface
  • the image side surface S6 is a convex surface.
  • the fourth lens L4 is a lenticular lens having positive refractive power, and both the object side surface S7 and the image side surface S8 are convex.
  • the fifth lens L5 is a meniscus lens having a negative refractive power
  • the object side surface S10 is a convex surface
  • the image side surface S11 is a concave surface.
  • the sixth lens L6 is a lenticular lens having positive refractive power, and both the object side surface S11 and the image side surface S12 are convex.
  • the fifth lens L5 and the sixth lens L6 are glued to each other to form a cemented lens.
  • the seventh lens L7 is a meniscus lens having positive refractive power
  • the object side surface S13 is a convex surface
  • the image side surface S14 is a concave surface.
  • the second lens L2, the third lens L3, the fifth lens L5, the sixth lens L6, and the seventh lens L7 are all aspherical lenses, and their respective object side faces and image side faces are aspherical surfaces.
  • the optical lens may further include a filter L8 having an object side surface S15 and an image side surface S16, and a protective lens L9 having an object side surface S17 and an image side surface S18.
  • Filter L8 can be used to correct color deviations.
  • the protective lens L9 can be used to protect the image sensing chip located on the imaging surface IMA. Light from the object sequentially passes through the respective surfaces S1 to S18 and is finally imaged on the image plane IMA.
  • the stop STO can be provided between the fourth lens L4 and the fifth lens L5 to improve the image quality.
  • the lens can have a small diameter at the front end, miniaturization, and high solution. At least one of advantageous effects such as a super large field of view.
  • Table 25 below shows the radius of curvature R, the thickness T, the refractive index Nd, and the Abbe number Vd of each lens of the optical lens of Example 9, wherein the units of the radius of curvature R and the thickness T are all millimeters (mm).
  • Table 26 below shows the conic coefficient k and the higher order coefficients A, B, C, D, and E which can be used for the aspherical lens surfaces S3-S6, S10-S14 in the ninth embodiment.
  • each aspherical surface type can be defined by the formula (1) given in the above embodiment 1.
  • Table 27 shows the material refractive index Nd of the first lens L1 of the optical lens of Example 9, the maximum light passing diameter D of the object side surface S1 of the first lens L1 corresponding to the maximum angle of view of the optical lens, and the optical lens.
  • the image height h corresponding to the maximum angle of view, the maximum angle of view FOV of the optical lens, and the optical back focus BFL of the optical lens (ie, the center of the image side S14 of the last lens seventh lens L7 to the axis of the imaging plane IMA)
  • the total optical length TTL of the optical lens ie, the distance from the center of the object side S1 of the first lens L1 to the on-axis of the imaging plane IMA
  • the entire set of focal length values F of the optical lens and the first lens L1 and The air gap d2 between the two lenses L2.
  • FIG. 10 is a block diagram showing the structure of an optical lens according to Embodiment 10 of the present application.
  • the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixth lens L6 from the object side to the imaging side along the optical axis. And a seventh lens L7.
  • the first lens L1 is a meniscus lens having a negative refractive power
  • the object side surface S1 is a convex surface
  • the image side surface S2 is a concave surface.
  • the second lens L2 is a meniscus lens having a negative refractive power
  • the object side surface S3 is a convex surface
  • the image side surface S4 is a concave surface.
  • the third lens L3 is a meniscus lens having a negative refractive power
  • the object side surface S5 is a concave surface
  • the image side surface S6 is a convex surface.
  • the fourth lens L4 is a lenticular lens having positive refractive power, and both the object side surface S7 and the image side surface S8 are convex.
  • the fifth lens L5 is a lenticular lens having positive refractive power, and both the object side surface S10 and the image side surface S11 are convex.
  • the sixth lens L6 is a biconcave lens having a negative refractive power, and both the object side surface S11 and the image side surface S12 are concave. Among them, the fifth lens L5 and the sixth lens L6 are glued to each other to form a cemented lens.
  • the seventh lens L7 is a lenticular lens having positive refractive power, and both the object side surface S13 and the image side surface S14 are convex.
  • the third lens L3, the fourth lens L4, and the seventh lens L7 are all aspherical lenses, and their respective side faces and image side faces are aspherical.
  • the optical lens may further include a filter L8 and/or a protective lens L8' having an object side S15 and an image side S16.
  • Filter L8 can be used to correct color deviations.
  • the protective lens L8' can be used to protect the image sensing chip located on the imaging surface IMA. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the image plane IMA.
  • the stop STO can be provided between the fourth lens L4 and the fifth lens L5 to improve the image quality.
  • Table 28 shows the curvature radius R, the thickness T, the refractive index Nd, and the Abbe number Vd of each lens of the optical lens of Example 10, wherein the units of the radius of curvature R and the thickness T are each mm (mm).
  • the lens can have high resolution, miniaturization, and large angle resolution. At least one of a benefit of rate, stable temperature performance, small diameter, low cost, and the like.
  • Table 29 below shows the conic coefficient k and the high order coefficient A, B, C, D, and E which can be used for the aspherical lens surfaces S5-S8 and S13-S14 in the embodiment 10.
  • each aspherical surface type can be defined by the formula (1) given in the above embodiment 1.
  • Table 30 below shows the maximum aperture diameter D of the object side surface S1 of the first lens L1 corresponding to the maximum angle of view of the optical lens of the embodiment 10, the image height h corresponding to the maximum angle of view of the optical lens, and the optical The maximum field of view angle FOV of the lens, the optical back focus BFL of the optical lens (ie, the axial distance from the center of the image side S14 of the last lens seventh lens L7 to the imaging surface IMA), and the optical total length TTL of the optical lens (ie, , the distance from the center of the object side surface S1 of the first lens L1 to the on-axis of the imaging plane IMA), the entire set of focal length values F of the optical lens, the focal length value F2-F3 of the second lens L2 and the third lens L3, and the fifth lens
  • the maximum angle of view FOV of the optical lens, the maximum aperture angle D of the object side surface S1 of the first lens L1 corresponding to the maximum angle of view of the optical lens, and the maximum angle of view of the optical lens correspond to
  • FIG. Fig. 11 is a view showing the structure of an optical lens according to Embodiment 11 of the present application.
  • the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixth lens L6 from the object side to the imaging side along the optical axis. And a seventh lens L7.
  • the first lens L1 is a meniscus lens having a negative refractive power
  • the object side surface S1 is a convex surface
  • the image side surface S2 is a concave surface.
  • the second lens L2 is a meniscus lens having a negative refractive power
  • the object side surface S3 is a convex surface
  • the image side surface S4 is a concave surface.
  • the third lens L3 is a meniscus lens having a negative refractive power
  • the object side surface S5 is a concave surface
  • the image side surface S6 is a convex surface.
  • the fourth lens L4 is a lenticular lens having positive refractive power, and both the object side surface S7 and the image side surface S8 are convex.
  • the fifth lens L5 is a lenticular lens having positive refractive power, and both the object side surface S10 and the image side surface S11 are convex.
  • the sixth lens L6 is a biconcave lens having a negative refractive power, and both the object side surface S11 and the image side surface S12 are concave. Among them, the fifth lens L5 and the sixth lens L6 are glued to each other to form a cemented lens.
  • the seventh lens L7 is a lenticular lens having positive refractive power, and both the object side surface S13 and the image side surface S14 are convex.
  • the third lens L3, the fourth lens L4, and the seventh lens L7 are all aspherical lenses, and their respective side faces and image side faces are aspherical.
  • the optical lens may further include a filter L8 and/or a protective lens L8' having an object side S15 and an image side S16.
  • Filter L8 can be used to correct color deviations.
  • the protective lens L8' can be used to protect the image sensing chip located on the imaging surface IMA. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the image plane IMA.
  • the stop STO can be provided between the fourth lens L4 and the fifth lens L5 to improve the image quality.
  • the lens can have high resolution, miniaturization, and large angle resolution. At least one of a benefit of rate, stable temperature performance, small diameter, low cost, and the like.
  • Table 31 below shows the radius of curvature R, the thickness T, the refractive index Nd, and the Abbe number Vd of each lens of the optical lens of Example 11, wherein the units of the radius of curvature R and the thickness T are each mm (mm).
  • Table 32 below shows the conic coefficient k and the high order coefficient A, B, C, D, and E which can be used for the aspherical lens surfaces S5-S8 and S13-S14 in Embodiment 11.
  • each aspherical surface type can be defined by the formula (1) given in the above embodiment 1.
  • Table 33 below shows the maximum aperture diameter D of the object side surface S1 of the first lens L1 corresponding to the maximum angle of view of the optical lens of Example 11, the image height h corresponding to the maximum angle of view of the optical lens, and the optical The maximum field of view angle FOV of the lens, the optical back focus BFL of the optical lens, the optical total length TTL of the optical lens, the entire set of focal length values F of the optical lens, the focal length value F2-F3 of the second lens L2 and the third lens L3, The combined focal length value F56 of the fifth lens L5 and the sixth lens L6, the focal length value F7 of the seventh lens L7, the air interval d12 between the sixth lens L6 and the seventh lens L7, and the material refractive index Nd1 of the first lens L1.
  • the maximum angle of view FOV of the optical lens, the maximum aperture angle D of the object side surface S1 of the first lens L1 corresponding to the maximum angle of view of the optical lens, and the maximum angle of view of the optical lens correspond to
  • Embodiments 1 to 11 respectively satisfy the relationships shown in Table 34 below.
  • the present application also provides an imaging apparatus that can include an optical lens according to some of the above-described embodiments of the present application and an imaging element for converting an optical image formed by the optical lens into an electrical signal.
  • the imaging element can be a photosensitive coupling element (CCD) or a complementary oxidized metal semiconductor element (CMOS).
  • CMOS complementary oxidized metal semiconductor element
  • the imaging device may be a stand-alone imaging device such as a proximity range camera, or an imaging module integrated on a device such as a probing distance device.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Abstract

一种光学镜头，沿着光轴由物侧至像侧依序可包括：第一透镜（L1）、第二透镜(L2)、第三透镜(L3)、第四透镜(L4)、第五透镜(L5)、第六透镜(L6)和第七透镜(L7)。其中，第一透镜可具有负光焦度，其物侧面(S1)为凸面，像侧面(S2)为凹面；第二透镜可具有负光焦度，其物侧面(S3)为凸面，像侧面(S4)为凹面；第三透镜可具有负光焦度，其物侧面(S5)和像侧面(S6)均为凹面；第四透镜可具有正光焦度，其物侧面(S7)为凸面；以及第七透镜可具有正光焦度，其物侧面(S13)和像侧面(S14)均为凸面，其中，第五透镜和第六透镜可胶合组成胶合透镜。根据本申请的光学镜头，可实现小型化、高解像、低成本、良好温度性能、前端小口径等中的至少一个有益效果。

Description

光学镜头及成像设备
相关申请的交叉引用
本申请要求于2018年4月28日向中国专利局提交的、发明名称为“光学镜头”的第201810403955.X号发明专利申请、于2018年4月28日向中国专利局提交的、发明名称为“光学镜头”的第201810397674.8号发明专利申请、于2018年7月27日向中国专利局提交的、发明名称为“光学镜头”的第201810840869.5号发明专利申请以及于2018年12月25日向中国专利局提交的、发明名称为“光学镜头及成像设备”的第201811588530.7号发明专利申请的优先权，上述专利申请的全部内容通过引用整体并入本文中。
技术领域
本申请涉及一种光学镜头，更具体地，本申请涉及一种包括七片透镜的光学镜头。此外，本申请还涉及一种包括含有七片透镜的光学镜头的成像设备。
背景技术
得益于近年来汽车辅助驾驶系统的高速发展，光学镜头在汽车上得到越来越广泛的应用，而且对光学镜头的像素要求越来越高，同时越来越多的公司也将广角镜头应用于自动驾驶中。
当前车载行业对于车载镜头的要求涉及小型化、低成本、高解像。同时因汽车行驶环境比较多变，装载在车外的镜头必须具备在各种恶劣环境中仍保持较高解像的能力。但随着大尺寸、高像素芯片逐步的使用，车载镜头的原有像素已无法匹配这些芯片，急需开发新的更高像素的镜头去替换市场上已有的低像素镜头。镜头要达到更高像素的目的必须通过增加镜片数量或是采用非球面镜片，这样的做法又受低成本及小型化这两个要求的限制。
随着光学镜头使用的普及化，市场上对车载镜头的图像的高清晰度、画面舒适度要求日益突出。目前广角镜头为达到百万像素的清晰度，通常采用非球面来矫正包含色差在内的像差，通过增加透镜数量至6枚以上来获得高解像，但是这也导致镜头体积以及重量相应地增大，从而不利于镜头小型化，并且会同时引起成本上升。
目前多采用塑料镜片来达到降低成本、轻便化的效果，然而高塑化程度，因为塑料镜片的热胀冷缩特性难以克服，虽通过镜片光焦度的搭配，材料的选取，使得温度性能有了较好的实现，但整体仍不能满足现有愈发严苛的温度要求。当然，也可通过采用玻璃非球面透镜来提高成像质量，满足温度性能要求，但是玻璃非球面制造工艺较难，成本较高。
为了不大幅度增加成本，一般通过增加塑料镜片达成上述目标。但受到塑料这种材质的限制，大量塑料镜片的使用会使得车载镜头无法在高低温环境中仍保持高解像能力。
发明内容
本申请提供了可适用于车载安装的、可至少克服或部分克服现有技术中的上述至少一个缺陷的光学镜头。
第一方面，本申请提供了这样一种光学镜头，该光学镜头沿着光轴由物侧至像侧依序可包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜和第七透镜。其中，第一透镜可具有负光焦度，其物侧面为凸面，像侧面为凹面；第二透镜可具有负光焦度，其物侧面为凸面，像侧面为凹面；第三透镜可具有负光焦度，其物侧面和像侧面均为凹面；第四透镜可具有正光焦度，其物侧面为凸面；以及第七透镜可具有正光焦度，其物侧面和像侧面均为凸面，其中，第五透镜和第六透镜可胶合组成胶合透镜。
在一个实施方式中，第四透镜的像侧面可为凸面。
在另一实施方式中，第四透镜的像侧面可为凹面。
在一个实施方式中，第五透镜可具有正光焦度，其物侧面和像侧面均可为凸面。
在一个实施方式中，第六透镜可具有负光焦度，其物侧面和像侧面均可为凹面。
在一个实施方式中，第一透镜的材料的折射率可大于等于1.65。
在一个实施方式中，光学镜头中的至少三个透镜可以是非球面镜片。
在一个实施方式中，第七透镜可以是非球面镜片。
在一个实施方式中，光学镜头中的至少一个可以是玻璃镜片。
在一个实施方式中，可满足条件式：D/h/FOV≤0.025，其中，FOV为光学镜头的最大视场角；D为光学镜头的最大视场角所对应的第一透镜物侧面的最大通光口径；以及h为光学镜头的最大视场角所对应的像高。
在一个实施方式中，可满足条件式：TTL/h/FOV≤0.025，其中，TTL为第一透镜的物侧面的中心至光学镜头的成像面在光轴上的距离；h为光学镜头最大视场角所对应的像高；以及FOV为光学镜头的最大视场角。
在一个实施方式中，可满足条件式：BFL/TTL≥0.1，其中，BFL为第七透镜的像侧面的中心至光学镜头的成像面在光轴上的距离；以及TTL为第一透镜的物侧面的中心至光学镜头的成像面在光轴上的距离。
在一个实施方式中，第三透镜的物侧面的曲率半径r31、第三透镜的像侧面的曲率半径r32与第三透镜的中心厚度d3之间可满足：(|r31|+d3)/|r32|≤12。
第二方面，本申请提供了这样一种光学镜头，该光学镜头沿着光轴由物侧至像侧依序可包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜和第七透镜。其中，第一透镜、第二透镜、第三透镜和第六透镜均可具有负光焦度；第四透镜、第五透镜和第七透镜均可具有正光焦度；以及第五透镜和第六透镜可胶合组成胶合透镜，其中，第一透镜的物侧面的中心至光学镜头的成像面在光轴上的距离TTL、光学镜头最大视场角所对应的 像高h与光学镜头的最大视场角FOV之间可满足条件式：TTL/h/FOV≤0.025。
在一个实施方式中，第一透镜的物侧面可为凸面，像侧面可为凹面。
在一个实施方式中，第二透镜的物侧面可为凸面，像侧面可为凹面。
在一个实施方式中，第三透镜的物侧面和像侧面均可为凹面。
在一个实施方式中，第四透镜的物侧面和像侧面均可为凸面。
在另一个实施方式中，第四透镜的物侧面可为凸面，像侧面可为凹面。
在一个实施方式中，第五透镜的物侧面和像侧面均可为凸面。
在一个实施方式中，第六透镜的物侧面和像侧面均可为凹面。
在一个实施方式中，第七透镜的物侧面和像侧面均可为凸面。
在一个实施方式中，第一透镜的材料的折射率可大于等于1.65。
在一个实施方式中，光学镜头中的至少三个透镜可以是非球面镜片。
在一个实施方式中，第七透镜可以是非球面镜片。
在一个实施方式中，光学镜头中的至少一个可以是玻璃镜片。
在一个实施方式中，可满足条件式：D/h/FOV≤0.025，其中，FOV为光学镜头的最大视场角；D为光学镜头的最大视场角所对应的第一透镜物侧面的最大通光口径；以及h为光学镜头的最大视场角所对应的像高。
在一个实施方式中，可满足条件式：BFL/TTL≥0.1，其中，BFL为第七透镜的像侧面的中心至光学镜头的成像面在光轴上的距离；以及TTL为第一透镜的物侧面的中心至光学镜头的成像面在光轴上的距离。
在一个实施方式中，第三透镜的物侧面的曲率半径r31、第三透镜的像侧面的曲率半径r32与第三透镜的中心厚度d3之间可满足：(|r31|+d3)/|r32|≤12。
第三方面，本申请提供了这样一种光学镜头，该光学镜头沿着光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜和第七透镜，其中，第一透镜具有负光焦度，并且第一透镜的物侧面为凸面，第一透镜的像侧面为凹面；第二透镜具有负光焦度，并且第二透镜的物侧面为凸面，第二透镜的像侧面为凹面；第三透镜具有负光焦度，并且第三透镜的物侧面为凹面，第三透镜的像侧面为凸面；第四透镜具有正光焦度，并且第四透镜的物侧面为凸面，第四透镜的像侧面为凹面；第五透镜和第六透镜胶合在一起；以及第七透镜具有正光焦度，并且第七透镜的物侧面和像侧面均为凸面。
在某些可选实施方式中，第五透镜具有正光焦度，并且第五透镜的物侧面和像侧面均为凸面；以及第六透镜具有负光焦度，并且第六透镜的物侧面和像侧面均为凹面。
在某些可选实施方式中，第二透镜、第三透镜和第七透镜为非球面镜片。
在某些可选实施方式中，第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜和第七透镜中的至少四枚透镜为非球面镜片。
在某些可选实施方式中，光学镜头的第四透镜满足条件式：0.4≤(∣r41∣+d4)/∣r42∣≤ 0.8，其中，r41为光学镜头的第四透镜的物侧面的曲率半径；d4为光学镜头的第四透镜的中心厚度；以及r42为光学镜头的第四透镜的像侧面的曲率半径。
在某些可选实施方式中，光学镜头满足条件式：D/h/FOV≤0.02，其中，D为光学镜头的最大视场角所对应的第一透镜的物侧面的最大通光口径；h为光学镜头的最大视场角所对应的像高；以及FOV为光学镜头的最大视场角。
在某些可选实施方式中，光学镜头满足条件式：TTL/h/FOV≤0.025，其中，TTL为从光学镜头的第一透镜的物侧面的中心到光学镜头的成像面的距离；h为光学镜头的最大视场角所对应的像高；以及FOV为光学镜头的最大视场角。
在某些可选实施方式中，光学镜头满足条件式：BFL/TTL≥0.1，其中，BFL为从光学镜头的第七透镜的像侧面的中心到光学镜头的成像面的距离；以及TTL为从光学镜头的第一透镜的物侧面的中心到光学镜头的成像面的距离。
在某些可选实施方式中，光学镜头的第一透镜满足条件式：Nd1≥1.7，其中，Nd1为形成光学镜头的第一透镜的材料的折射率。
第四方面，本申请提供了这样一种光学镜头，该光学镜头沿着光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜和第七透镜，其中，第一透镜、第二透镜和第三透镜具有负光焦度；第四透镜和第七透镜具有正光焦度；以及光学镜头满足条件式：TTL/h/FOV≤0.025，其中，TTL为从光学镜头的第一透镜的物侧面的中心到光学镜头的成像面的距离，h为光学镜头的最大视场角所对应的像高，以及FOV为光学镜头的最大视场角。
在某些可选实施方式中，第一透镜的物侧面为凸面，第一透镜的像侧面为凹面。
在某些可选实施方式中，第二透镜的物侧面为凸面，第二透镜的像侧面为凹面。
在某些可选实施方式中，第三透镜的物侧面为凹面，第三透镜的像侧面为凸面。
在某些可选实施方式中，第四透镜的物侧面为凸面，第四透镜的像侧面为凹面。
在某些可选实施方式中，第五透镜和第六透镜胶合在一起。
在某些可选实施方式中，第七透镜的物侧面和像侧面均为凸面。
在某些可选实施方式中，第五透镜具有正光焦度，并且第五透镜的物侧面和像侧面均为凸面；以及第六透镜具有负光焦度，并且第六透镜的物侧面和像侧面均为凹面。
在某些可选实施方式中，第二透镜、第三透镜和第七透镜为非球面镜片。
在某些可选实施方式中，第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜和第七透镜中的至少四枚透镜为非球面镜片。
在某些可选实施方式中，光学镜头的第四透镜满足条件式：0.4≤(∣r41∣+d4)/∣r42∣≤0.8，其中，r41为光学镜头的第四透镜的物侧面的曲率半径；d4为光学镜头的第四透镜的中心厚度；以及r42为光学镜头的第四透镜的像侧面的曲率半径。
在某些可选实施方式中，光学镜头满足条件式：D/h/FOV≤0.02，其中，D为光学镜头的最大视场角所对应的第一透镜的物侧面的最大通光口径；h为光学镜头的最大视场角所对应的像高；以及FOV为光学镜头的最大视场角。
在某些可选实施方式中，光学镜头满足条件式：BFL/TTL≥0.1，其中，BFL为从光学镜头的第七透镜的像侧面的中心到光学镜头的成像面的距离；以及TTL为从光学镜头的第一透镜的物侧面的中心到光学镜头的成像面的距离。
在某些可选实施方式中，光学镜头的第一透镜满足条件式：Nd1≥1.7，其中，Nd1为形成光学镜头的第一透镜的材料的折射率。
第五方面，本申请提供了这样一种光学镜头，该光学镜头沿着光轴由物侧至像侧依序可包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜和第七透镜。其中，第一透镜可具有负光焦度，其物侧面为凸面，像侧面为凹面；第二透镜可具有负光焦度，其像侧面为凹面；第三透镜可具有负光焦度，其物侧面为凹面，像侧面为凸面；第四透镜可具有正光焦度，其物侧面和像侧面均为凸面；第五透镜可具有负光焦度，其物侧面为凸面，像侧面为凹面；第六透镜可具有正光焦度，其物侧面和像侧面均为凸面；以及第七透镜可具有正光焦度，其物侧面为凸面。
在一个实施方式中，第五透镜和第六透镜可互相胶合形成胶合透镜。
在一个实施方式中，第二透镜的物侧面可为凸面。
在另一实施方式中，第二透镜的物侧面可为凹面。
在一个实施方式中，第七透镜的像侧面可为凸面。
在另一实施方式中，第七透镜的像侧面可为凹面。
在一个实施方式中，光学镜头可具有至少4个非球面镜片。
在一个实施方式中，第二透镜、第三透镜和第七透镜均可为非球面镜片。
在一个实施方式中，可满足条件式：d2/TTL≤0.2，其中，d2为第一透镜与第二透镜之间的空气间隔；以及TTL为第一透镜的物侧面的中心至光学镜头的成像面在光轴上的距离。
在一个实施方式中，光学镜头的最大视场角FOV、光学镜头的整组焦距值F与光学镜头的最大视场角所对应的像高h之间可满足：(FOV×F)/h≥45。
在一个实施方式中，第一透镜的材料的折射率可大于等于1.65。
在一个实施方式中，光学镜头的最大视场角FOV、光学镜头的最大视场角所对应的第一透镜的物侧面的最大通光口径D以及光学镜头最大视场角所对应的像高h之间可满足：D/h/FOV≤0.02。
在一个实施方式中，第一透镜的物侧面的中心至光学镜头的成像面在光轴上的距离TTL与第七透镜的像侧面中心至光学镜头的成像面在光轴上的距离BFL之间可满足BFL/TTL≥0.1。
在一个实施方式中，第一透镜的物侧面的中心至光学镜头的成像面在光轴上的距离 TTL、光学镜头的最大视场角FOV以及光学镜头的最大视场角所对应的像高h之间可满足：TTL/h/FOV≤0.025。
第六方面，本申请提供了这样一种光学镜头，该光学镜头沿着光轴由物侧至像侧依序可包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜和第七透镜。其中，第一透镜、第二透镜、第三透镜和第五透镜均可具有负光焦度；第四透镜、第六透镜和第七透镜均可具有正光焦度；第五透镜可与第六透镜胶合；以及光学镜头的最大视场角FOV、光学镜头的整组焦距值F与光学镜头的最大视场角所对应的像高h之间可满足：(FOV×F)/h≥45。
在一个实施方式中，第一透镜的物侧面可为凸面，像侧面可为凹面。
在一个实施方式中，第二透镜的物侧面可为凸面，像侧面可为凹面。
在另一实施方式中，第二透镜的物侧面和像侧面均可为凹面。
在一个实施方式中，第三透镜的物侧面可为凹面，像侧面可为凸面。
在一个实施方式中，第四透镜的物侧面和像侧面均可为凸面。
在一个实施方式中，第五透镜的物侧面可为凸面，像侧面可为凹面。
在一个实施方式中，第六透镜的物侧面和像侧面均可为凸面。
在一个实施方式中，第七透镜的物侧面和像侧面均可为凸面。
在另一实施方式中，第七透镜的物侧面可为凸面，像侧面可为凹面。
在一个实施方式中，光学镜头可具有至少4个非球面镜片。
在一个实施方式中，第二透镜、第三透镜和第七透镜均可为非球面镜片。
在一个实施方式中，可满足条件式：d2/TTL≤0.2，其中，d2为第一透镜与第二透镜之间的空气间隔；以及TTL为第一透镜的物侧面的中心至光学镜头的成像面在光轴上的距离。
在一个实施方式中，第一透镜的材料的折射率可大于等于1.65。
在一个实施方式中，光学镜头的最大视场角FOV、光学镜头的最大视场角所对应的第一透镜的物侧面的最大通光口径D以及光学镜头最大视场角所对应的像高h之间可满足：D/h/FOV≤0.02。
在一个实施方式中，第一透镜的物侧面的中心至光学镜头的成像面在光轴上的距离TTL与第七透镜的像侧面中心至光学镜头的成像面在光轴上的距离BFL之间可满足BFL/TTL≥0.1。
在一个实施方式中，第一透镜的物侧面的中心至光学镜头的成像面在光轴上的距离TTL、光学镜头的最大视场角FOV以及光学镜头的最大视场角所对应的像高h之间可满足：TTL/h/FOV≤0.025。
第七方面，本申请的一个方面提供了这样一种光学镜头，该光学镜头沿着光轴由物侧至像侧依序可包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜和第 七透镜。其中，第一透镜可具有负光焦度，其物侧面为凸面，像侧面为凹面；第二透镜可具有负光焦度，其物侧面为凸面，像侧面为凹面；第三透镜可具有负光焦度，其物侧面为凹面，像侧面为凸面；第四透镜可具有正光焦度，其物侧面和像侧面均为凸面；第五透镜可具有正光焦度，其物侧面和像侧面均为凸面；第六透镜可具有负光焦度，其物侧面和像侧面均为凹面；以及第七透镜可具有正光焦度，其物侧面和像侧面均为凸面。
在一个实施方式中，第五透镜与第六透镜可互相胶合形成第一胶合透镜。
在一个实施方式中，光学镜头可具有至少三个非球面镜片。
在一个实施方式中，第三透镜、第四透镜和第七透镜均可为非球面镜片。
在一个实施方式中，光学镜头的最大视场角FOV、光学镜头的最大视场角所对应的第一透镜的物侧面的最大通光口径D以及光学镜头的最大视场角所对应的像高h之间可满足：D/h/FOV≤0.025。
在一个实施方式中，光学镜头的最大视场角度FOV、光学镜头的整组焦距值F以及光学镜头的最大视场角所对应的像高h之间可满足：(FOV×F)/h≥50。
在一个实施方式中，第二透镜的焦距值F2与第三透镜的焦距值F3之间可满足：F3/F2≤1.6。
在一个实施方式中，光学镜头的光学后焦BFL与光学镜头的光学总长度TTL之间可满足：BFL/TTL≥0.05。
在一个实施方式中，光学镜头的光学总长度TTL、光学镜头的最大视场角FOV以及光学镜头的最大视场角所对应的像高h之间可满足：TTL/h/FOV≤0.025。
在一个实施方式中，第一透镜的材料折射率Nd1可满足：Nd1≥1.65。
在一个实施方式中，第六透镜和第七透镜之间的空气间隔d12与光学镜头的光学总长度TTL之间可满足：d12/TTL≤0.035。
在一个实施方式中，第七透镜的焦距值F7与光学镜头的整组焦距值F之间可满足：F7/F≤3。
在一个实施方式中，第五透镜和第六透镜的组合焦距值F56与光学镜头的整组焦距值F之间可满足：F56/F≤-10。
第八方面，本申请提供了这样一种光学镜头，该光学镜头沿着光轴由物侧至像侧依序可包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜和第七透镜。其中，第一透镜、第二透镜、第三透镜和第六透镜均可具有负光焦度；第四透镜、第五透镜和第七透镜均可具有正光焦度；第五透镜和第六透镜可互相胶合形成胶合透镜；以及光学镜头的最大视场角度FOV、光学镜头的整组焦距值F以及光学镜头的最大视场角所对应的像高h之间可满足：(FOV×F)/h≥50。
在一个实施方式中，第一透镜的物侧面可为凸面，像侧面可为凹面。
在一个实施方式中，第二透镜的物侧面可为凸面，像侧面可为凹面。
在一个实施方式中，第三透镜的物侧面可为凹面，像侧面可为凸面。
在一个实施方式中，第四透镜的物侧面和像侧面均可为凸面。
在一个实施方式中，第五透镜的物侧面和像侧面均可为凸面。
在一个实施方式中，第六透镜的物侧面和像侧面均可为凹面。
在一个实施方式中，第七透镜的物侧面和像侧面均可为凸面。
在一个实施方式中，光学镜头可具有至少三个非球面镜片。
在一个实施方式中，第三透镜、第四透镜和第七透镜均可为非球面镜片。
在一个实施方式中，光学镜头的最大视场角FOV、光学镜头的最大视场角所对应的第一透镜的物侧面的最大通光口径D以及光学镜头的最大视场角所对应的像高h之间可满足：D/h/FOV≤0.025。
在一个实施方式中，第二透镜的焦距值F2与第三透镜的焦距值F3之间可满足：F3/F2≤1.6。
在一个实施方式中，光学镜头的光学后焦BFL与光学镜头的光学总长度TTL之间可满足：BFL/TTL≥0.05。
在一个实施方式中，光学镜头的光学总长度TTL、光学镜头的最大视场角FOV以及光学镜头的最大视场角所对应的像高h之间可满足：TTL/h/FOV≤0.025。
在一个实施方式中，第一透镜的材料折射率Nd1可满足：Nd1≥1.65。
在一个实施方式中，第六透镜和第七透镜之间的空气间隔d12与光学镜头的光学总长度TTL之间可满足：d12/TTL≤0.035。
在一个实施方式中，第七透镜的焦距值F7与光学镜头的整组焦距值F之间可满足：F7/F≤3。
在一个实施方式中，第五透镜和第六透镜的组合焦距值F56与光学镜头的整组焦距值F之间可满足：F56/F≤-10。
第九方面，本申请还提供了一种成像设备，该成像设备可包括根据上述实施方式中的一些的光学镜头及用于将光学镜头形成的光学图像转换为电信号的成像元件。
本申请的上述实施方式中的一些可采用了例如七片透镜，可通过优化设置镜片的形状，合理分配各镜片的光焦度等，使光学镜头具有高解像、小型化、低成本、良好的温度性能、前端口径小等有益效果中的至少一个。另外，申请的上述实施方式中的一些或其他其它实施方式还可使光学镜头实现小型化、高解像、低成本等有益效果中的至少一个。此外，申请的上述实施方式中的一些或其他其它实施方式还可使光学镜头实现前端小口径、高像素、小型化、超大视场角等有益效果中的至少一个。此外，申请的上述实施方式中的一些或其他其它实施方式还可使光学镜头实现高解像、小型化、大角分辨率、稳定温度性能、小口径、低成本等有益效果中的至少一个。
附图说明
结合附图，通过以下非限制性实施方式的详细描述，本申请的其他特征、目的和优点将变得更加明显。在附图中：
图1为示出根据本申请实施例1的光学镜头的结构示意图；
图2为示出根据本申请实施例2的光学镜头的结构示意图；
图3为示出根据本申请实施例3的光学镜头的结构示意图；
图4为示出根据本申请实施例4的光学镜头的结构示意图；
图5为示出根据本申请实施例5的光学镜头的结构示意图；
图6为示出根据本申请实施例6的光学镜头的结构示意图；
图7为示出根据本申请实施例7的光学镜头的结构示意图；
图8为示出根据本申请实施例8的光学镜头的结构示意图；
图9为示出根据本申请实施例9的光学镜头的结构示意图；
图10为示出根据本申请实施例10的光学镜头的结构示意图；以及
图11为示出根据本申请实施例11的光学镜头的结构示意图。
具体实施方式
为了更好地理解本申请，将参考附图对本申请的各个方面做出更详细的说明。应理解，这些详细说明只是对本申请的示例性实施方式的描述，而非以任何方式限制本申请的范围。在说明书全文中，相同的附图标号指代相同的元件。表述“和/或”包括相关联的所列项目中的一个或多个的任何和全部组合。
应注意，在本说明书中，第一、第二、第三等的表述仅用于将一个特征与另一个特征区分开来，而不表示对特征的任何限制。因此，在不背离本申请的教导的情况下，下文中讨论的第一透镜也可被称作第二透镜或第三透镜，第一胶合透镜也可被称作第二胶合透镜。
在附图中，为了便于说明，已稍微夸大了透镜的厚度、尺寸和形状。具体来讲，附图中所示的球面或非球面的形状通过示例的方式示出。即，球面或非球面的形状不限于附图中示出的球面或非球面的形状。附图仅为示例而并非严格按比例绘制。
在本文中，近轴区域是指光轴附近的区域。若透镜表面为凸面且未界定该凸面位置时，则表示该透镜表面至少于近轴区域为凸面；若透镜表面为凹面且未界定该凹面位置时，则表示该透镜表面至少于近轴区域为凹面。每个透镜中最靠近物体的表面称为物侧面，每个透镜中最靠近成像面的表面称为像侧面。
还应理解的是，用语“包括”、“包括有”、“具有”、“包含”和/或“包含有”，当在本说明书中使用时表示存在所陈述的特征、元件和/或部件，但不排除存在或附加有一个或多个其它特征、元件、部件和/或它们的组合。此外，当诸如“...中的至少一个”的表述出现在所列特征的列表之后时，修饰整个所列特征，而不是修饰列表中的单独元件。此外，当描述本申请的实施方 式时，使用“可”表示“本申请的一个或多个实施方式”。并且，用语“示例性的”旨在指代示例或举例说明。
除非另外限定，否则本文中使用的所有用语(包括技术用语和科学用语)均具有与本申请所属领域普通技术人员的通常理解相同的含义。还应理解的是，用语(例如在常用词典中定义的用语)应被解释为具有与它们在相关技术的上下文中的含义一致的含义，并且将不被以理想化或过度正式意义解释，除非本文中明确如此限定。
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本申请。
以下对本申请的特征、原理和其他方面进行详细描述。
根据本申请示例性实施方式的光学镜头包括例如七个具有光焦度的透镜，即第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜和第七透镜。这七个透镜沿着光轴从物侧至像侧依序排列。
根据本申请示例性实施方式的光学镜头还可进一步包括设置于成像面的感光元件。可选地，设置于成像面的感光元件可以是感光耦合元件(CCD)或互补性氧化金属半导体元件(CMOS)。
一方面，根据本申请的实施方式，第一透镜可具有负光焦度，其物侧面可为凸面、像侧面可为凹面。第一透镜设置为凸向物侧的弯月形状能够尽可能地收集大视场光线，使光线进入后方光学系统。在实际应用中，考虑到车载镜头室外安装使用环境，会处于雨雪等恶劣天气，这样的凸向物侧的弯月形状设计，更加适用雨雪等环境，有利于水滴的滑落，不易积水、积尘、从而减小外界环境对成像的影响。
第二透镜可具有负光焦度，其物侧面可为凸面，像侧面可为凹面。第二透镜可将第一透镜收集的光线进行压缩，使光线走势平稳过渡至后方光学系统。第二透镜的像侧面设置为凹面，可有利于减少第一透镜与第二透镜之间的距离，更易缩短镜头的物理总长，实现小型化特性。
第三透镜可具有负光焦度，其物侧面和像侧面均可为凹面。第三透镜可以发散光线，使光线过渡至后方光学系统，平衡前后镜片引起的像差，且第三透镜双凹的形状设计可减小镜头的整体长度，同时第三透镜采取负焦距镜片可利于补偿整体镜头在高低温下的后焦偏移，使镜头在高低温下具有良好的解像力。
第四透镜可具有正光焦度，其物侧面可为凸面。第四透镜可以汇聚光线，使光线平缓过渡至后方光学系统。
第五透镜可具有正光焦度，其物侧面和像侧面均可为凸面。
第六透镜可具有负光焦度，其物侧面和像侧面均可为凹面。
第七透镜可具有正光焦度，其物侧面和像侧面均可为凸面。第七透镜为汇聚透镜，可以适当汇聚光线。
如本领域技术人员已知的，胶合透镜可用于最大限度地减少色差或消除色差。在光学镜头中使用胶合透镜能够改善像质、减少光能量的反射损失，从而提升镜头成像的清晰度。另外，胶合透镜的使用还可简化镜头制造过程中的装配程序。
在示例性实施方式中，可通过将第五透镜的像侧面与第六透镜的物侧面胶合，而将第五透镜和第六透镜组合成胶合透镜。通过引入由第五透镜和第六透镜组成的胶合透镜，可有助于消除色差影响，减小场曲，校正慧差；同时，胶合透镜还可以残留部分色差以平衡光学系统的整体色差。镜片的胶合省略了两镜片之间的空气间隔，使得光学系统整体紧凑，满足系统小型化需求。并且，镜片的胶合会降低镜片单元因在组立过程中产生的倾斜/偏芯等公差敏感度问题。
在胶合透镜中，靠近物侧的第五透镜具有正光焦度，靠近像侧的第六透镜具有负光焦度，这样的设置有利于将经过第四透镜的光线进一步汇聚后再过渡至后方光学系统，有利于减小镜头后端口径/尺寸，减小系统总长，以实现短TTL。另外，光线在经过第六透镜之后会稍稍发散，这有利于镜头匹配更大尺寸的芯片。
在示例性实施方式中，可在例如第四透镜与第五透镜之间设置用于限制光束的光阑，以进一步提高镜头的成像质量。当将光阑设置于四透镜与第五透镜之间时，可有效收束前后光线，缩短光学系统总长，减小前后镜片组的口径。
在示例性实施方式中，光学镜头的最大视场角FOV、光学镜头最大视场角所对应的第一透镜物侧面的最大通光口径D以及光学镜头最大视场角所对应的像高h之间可满足：D/h/FOV≤0.025，更理想地，D、h和FOV进一步可满足D/h/FOV≤0.02。满足条件式D/h/FOV≤0.025，可保证镜头的前端小口径。
在示例性实施方式中，光学镜头的光学后焦BFL与光学镜头的光学总长度TTL之间可满足BFL/TTL≥0.1，更进一步地，BFL和TTL进一步可满足BFL/TTL≥0.13。结合该光学镜头的整体架构，满足BFL/TTL≥0.1的后焦设置，可有利于光学镜头的组装。
在示例性实施方式中，光学镜头的光学总长度TTL、光学镜头的最大视场角FOV与光学镜头最大视场角所对应的像高h之间可满足TTL/h/FOV≤0.025，更理想地，TTL、FOV和h进一步可满足TTL/h/FOV≤0.02。满足条件式TTL/h/FOV≤0.025，相比于其他镜头，同一视场角的同一成像面下TTL更短，可实现镜头的小型化特性。
在示例性实施方式中，第三透镜物侧面的曲率半径r31、第三透镜像侧面的曲率半径r32与第三透镜的中心厚度d3之间可满足：(|r31|+d3)/|r32|≤12，更理想地，可进一步满足(|r31|+d3)/|r32|≤8。第三透镜这样的形状设计，有利于提升成像质量，缩短系统光学总长。
在示例性实施方式中，第一透镜可以使用高折射率材料，具体地，例如第一透镜材料的折射率可大于等于1.65，更理想地，第一透镜材料的折射率大于等于1.7。这样的设置，有利于减小镜头的前端口径，提高成像质量。
在示例性实施方式中，根据本申请的光学镜头中的至少三个为非球面镜片。非球面镜片的特点是：从镜片中心到周边曲率是连续变化的。与从镜片中心到周边有恒定曲率的球面镜 片不同，非球面镜片具有更佳的曲率半径特性，具有改善歪曲像差及改善像散像差的优点。采用非球面镜片后，能够尽可能地消除在成像的时候出现的像差，从而提升镜头的成像质量。例如，第一透镜可采用非球面镜片，可有利于提高解像质量。第七透镜可采用非球面镜片，以减小周边光线到达成像面的光程，矫正系统的轴外点像差，优化畸变、CRA等性能。另外，第七透镜采用非球面，可使得光线在最后可以有效平稳的汇聚，减轻系统的整体重量和成本。
在示例性实施方式中，光学镜头所采用的镜片可以是塑料材质的镜片，还可以是玻璃材质的镜片。由于塑料材质的镜片热膨胀系数较大，当镜头所使用的环境温度变化较大时，塑料材质的透镜会对镜头的整体性能造成较大影响。而采用玻璃材质的镜片，可减小温度对镜头性能的影响。根据本申请的光学镜头中的至少一个透镜为玻璃镜片，以减小环境对系统整体的影响，提升光学镜头的整体性能。例如，第一透镜可以为玻璃镜片。更理想地，第一透镜可采用玻璃非球面镜片，以进一步提高成像质量和减小前端口径。
根据本申请的上述实施方式的光学镜头通过优化设置镜片形状，合理分配光焦度，可减小前端口径，缩短TTL，保证镜头小型化的同时，提升解像力。同时在提升相同解像能力的情况下，相对于必须采用玻璃非球面的光学镜头来说，根据申请的光学镜头不需采用玻璃非球面，即可达到相同要求，降低了成本。本申请使用7枚镜片能够在高低温下保持高解像能力稳定，很好的适用车载环境的使用需求。
另一方面，根据本申请的实施方式，第一透镜可具有负光焦度，并且第一透镜的物侧面为凸面，第一透镜的像侧面为凹面。
通过将第一透镜设计成凸面朝向物侧的弯月形状，能够尽可能地收集大视场光线进入后方光学系统。另外，在实际使用过程中，由于广角镜头可能装在车外，因此可能会遇到恶劣的天气环境；根据本申请的第一透镜所采用的凸面形状不易积水、积尘，能够减小外界环境对成像的影响。
在可选实施方式中，形成光学镜头的第一透镜的材料的折射率Nd1满足条件式：Nd1≥1.7，例如，可进一步满足条件式：Nd1≥1.76。通过满足条件式Nd1≥1.7，有利于减小光学系统的前端口径以及提高光学系统的成像质量。
可选地，为了进一步减小前端口径以及提高成像质量，第一透镜由具有高折射率的材料制成。进一步可选地，第一透镜可采用玻璃非球面镜片。
第二透镜可具有负光焦度，并且第二透镜的物侧面为凸面，第二透镜的像侧面为凹面。第二透镜将由第一透镜收集的光线进行压缩，使得光线走势平稳过渡。通过将第二透镜的像侧面设计为凹面，有利于减少第一透镜和第二透镜之间的距离，使得更容易缩短光学镜头的物理总长，实现小型化。
第三透镜可具有负光焦度，并且第三透镜的物侧面为凹面，第三透镜的像侧面为凸面。如此一来，第三透镜能够发散光线并且使得经发散的光线顺利进入后方，同时能够平衡由前 两组镜片(具体地，第一透镜和第二透镜)引入的球差以及位置色差。
第四透镜可具有正光焦度，并且第四透镜的物侧面为凸面，第四透镜的像侧面为凹面。如此一来，第四透镜能够将光线进行压缩使得光线走势平稳过渡；同时该镜片的弯月形状可使得镜头总长大大缩短，改善镜头色差。
在可选实施方式中，光学镜头的第四透镜的物侧面的曲率半径r41、光学镜头的第四透镜的中心厚度d4以及光学镜头的第四透镜的像侧面的曲率半径r42满足条件式：0.4≤(∣r41∣+d4)/∣r42∣≤0.8，例如，可进一步满足条件式：0.5≤(∣r41∣+d4)/∣r42∣≤0.7。通过第四透镜的特殊形状，使其满足条件式0.4≤(∣r41∣+d4)/∣r42∣≤0.8，可有利于提升成像质量，缩短光学镜头的总长。
第五透镜和第六透镜可胶合在一起。通过使第五透镜和第六透镜胶合，可以自身消色差、减小公差敏感度，同时可以残留部分色差以平衡系统的色差。
在可选实施方式中，第五透镜可具有正光焦度，并且第五透镜的物侧面和像侧面均为凸面；以及第六透镜可具有负光焦度，并且第六透镜的物侧面和像侧面均为凹面。
通过使第五透镜和第六透镜以正片在前负片在后的布置进行胶合，可将前方光线进一步汇聚后再过渡到后方，使得能够减小镜头后端口径/尺寸以及减小光学系统的总长。
第七透镜可具有正光焦度，并且第七透镜的物侧面和像侧面均为凸面。通过将第七透镜设计成具有正光焦度的双凸透镜，能够进一步会聚光线。
可选地，第七透镜可为非球面镜片。如此一来，可以减小周边光线到达成像面的光程，并且可以矫正系统的轴外点像差，优化畸变、CRA等光学性能。另外，通过采用非球面，第七透镜可使得光线在最后能够有效平稳地汇聚，从而减轻整体重量与成本。
在可选实施方式中，第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜和第七透镜中的至少四枚透镜为非球面镜片。进一步可选地，第二透镜、第三透镜和第七透镜为非球面镜片。
在可选实施方式中，在第四透镜与由第五透镜和第六透镜形成的胶合件之间设置有光阑。光阑可收束前后光线，缩短光学系统的总长，减小前后镜片组口径。然而，应注意，此处光阑的设置位置仅是示例而非限制；例如，光阑也可根据需要设置在其他位置。
根据需要，该光学镜头还可包括设置在第七透镜和成像面之间的滤光片，以对具有不同波长的光线进行过滤。另外，可选地，根据本申请的光学镜头还可包括设置在滤光片和成像面之间的保护玻璃。
在可选实施方式中，光学镜头的最大视场角所对应的第一透镜的物侧面的最大通光口径D、光学镜头的最大视场角所对应的像高h以及光学镜头的最大视场角FOV满足条件式：D/h/FOV≤0.02，例如，可进一步满足条件式：D/h/FOV≤0.016。通过满足条件式D/h/FOV≤0.02，可实现光学镜头的前端口径小。
在可选实施方式中，光学镜头的光学长度(即，从光学镜头的第一透镜的物侧面的中 心到光学镜头的成像面的距离)TTL、光学镜头的最大视场角所对应的像高h以及光学镜头的最大视场角FOV满足条件式：TTL/h/FOV≤0.025，例如，可进一步满足条件式：TTL/h/FOV≤0.020。通过满足条件式TTL/h/FOV≤0.025，可实现光学镜头的小型化，更具体地，对比其他镜头，在同一视场角的同一成像面下光学镜头的光学长度TTL可更短。
在可选实施方式中，光学镜头的光学后焦BFL(即，从光学镜头的第七透镜的像侧面的中心到光学镜头的成像面的距离)、光学镜头的光学长度TTL(即，从光学镜头的第一透镜的物侧面的中心到光学镜头的成像面的距离)满足条件式：BFL/TTL≥0.1，例如，可进一步满足条件式：BFL/TTL≥0.14。通过满足条件式BFL/TTL≥0.1，结合整体架构，后焦设置可便于组装。
根据本申请上述实施方式的光学镜头通过合理地设计和布置多个镜片，例如，上述七枚镜片，能够合理分配光焦度，减小前端口径，缩短光学镜头的光学总长，从而既能保证镜头小型化又能提升解像力。同时，相对于采用玻璃非球面才能达到高解像的光学镜头来说，根据本申请上述实施方式的光学镜头在提升到相同的解像力的情况下，具有更低的成本，且能够达到4M以上的解像。
又一方面，第一透镜可具有负光焦度，其物侧面可为凸面、像侧面可为凹面。第一透镜设置为凸向物侧的弯月形状能够尽可能地收集大视场光线，使光线进入后方光学系统。在实际应用中，考虑到车载镜头室外安装使用环境，会处于雨雪等恶劣天气，这样的凸向物侧的弯月形状设计，有利于水滴的滑落，减小对成像的影响。可选地，第一透镜可采用高折射率材料制成，例如第一透镜的折射率Nd1≥1.65，理想地，Nd1≥1.7，以有利于减小前端口径，提高成像质量。
第二透镜可具有负光焦度，其物侧面可选地为凸面或凹面，像侧面可为凹面。第二透镜可将第一透镜收集的光线进行适当压缩，使光线平稳过渡至后方光学系统。第二透镜的像侧面设置为凹面，有利于减小第一透镜与第二透镜之间的距离，更易缩短镜头的物理总长，实现小型化。
第三透镜可具有负光焦度，其物侧面可为凹面，像侧面可为凸面。具有负光焦度的第三透镜可平衡由前两组镜片引入的球差以及位置色差，并且凸向像侧的弯月形状设计，有利于减小光学系统总长。
第四透镜可具有正光焦度，其物侧面和像侧面均可为凸面。第四透镜可汇聚光线，使发散的光线顺利进入后方光学系统，将光线进行压缩，使平稳过渡至后方光学系统。
第五透镜可具有负光焦度，其物侧面可为凸面，像侧面可为凹面。
第六透镜可具有正光焦度，其物侧面和像侧面均可为凸面。
第七透镜可具有正光焦度，其物侧面可为凸面，像侧面可选地可为凸面或凹面。第七透镜为汇聚透镜，使得光线在最后可以有效平稳的汇聚，使光线平稳到达成像面，减轻光学系 统的整体重量和成本。
在示例性实施方式中，可在例如第四透镜与第五透镜之间设置用于限制光束的光阑，以进一步提高镜头的成像质量。当将光阑设置于第四透镜与第五透镜之间时，可收束前后光线，有效缩短光学系统总长，减小前后镜片的口径。然而，应注意，此处公开的光阑的位置仅是示例而非限制；在替代的实施方式中，也可根据实际需要将光阑设置在其他位置。
在示例性实施方式中，根据需要，根据本申请的光学镜头还可包括设置在第七透镜与成像面之间的滤光片，以对具有不同波长的光线进行过滤；以及还可包括设置在滤光片与成像面之间的保护玻璃，以防止光学镜头的内部元件(例如，芯片)被损坏。
如本领域技术人员已知的，胶合透镜可用于最大限度地减少色差或消除色差。在光学镜头中使用胶合透镜能够改善像质、减少光能量的反射损失，从而提升镜头成像的清晰度。另外，胶合透镜的使用还可简化镜头制造过程中的装配程序。
在示例性实施方式中，可通过将第五透镜的像侧面与第六透镜的物侧面胶合，而将第五透镜和第六透镜组合成胶合透镜。通过引入由第五透镜和第六透镜组成的胶合透镜，可有助于消除色差影响，减小场曲，校正慧差；同时，胶合透镜还可以残留部分色差以平衡光学系统的整体色差。镜片的胶合省略了两镜片之间的空气间隔，使得光学系统整体紧凑，满足系统小型化需求。并且，镜片的胶合会降低镜片单元因在组立过程中产生的倾斜/偏芯等公差敏感度问题。
在胶合透镜中，靠近物侧的第五透镜具有负光焦度，靠近像侧的第六透镜具有正光焦度，这样的设置有利于将前方光线发散并快速汇聚后再过渡到后方，更有利于后方光线光程的减小，实现短TTL，同时降低系统的公差敏感度。
在示例性实施方式中，第一透镜与第二透镜之间的空气间隔d2与光学镜头的光学总长度TTL之间可满足：d2/TTL≤0.2，更理想地，可进一步满足d2/TTL≤0.18。
在示例性实施方式中，光学镜头的最大视场角FOV、光学镜头的整组焦距值F与光学镜头最大视场角所对应的像高h之间可满足：(FOV×F)/h≥45，更理想地，可进一步满足(FOV×F)/h≥50。满足条件式(FOV×F)/h≥45，可实现大角分辨率。
在示例性实施方式中，光学镜头的最大视场角FOV、光学镜头的最大视场角所对应的第一透镜的物侧面的最大通光口径D以及光学镜头最大视场角所对应的像高h之间可满足：D/h/FOV≤0.02，更理想地，可进一步满足D/h/FOV≤0.018。满足条件式D/h/FOV≤0.02，可实现镜头前端小口径。
在示例性实施方式中，光学镜头的光学后焦BFL与光学镜头的光学总长度TTL之间可满足：BFL/TTL≥0.1，更理想地，可进一步满足BFL/TTL≥0.11。满足条件式BFL/TTL≥0.1的后焦设置，结合光学镜头的整体架构，可有利于光学系统的组装。
在示例性实施方式中，光学镜头的光学总长度TTL、光学镜头的最大视场角FOV以及光学镜头最大视场角所对应的像高h之间可满足：TTL/h/FOV≤0.025，更理想地，可进一步满足TTL/h/FOV≤0.02。满足条件式TTL/h/FOV≤0.025，可实现小型化，并且对比于其 他镜头，相同视场角相同像高下的TTL更短。
在示例性实施方式中，根据本申请的光学镜头可具有至少4个非球面镜片。非球面镜片的特点是：从镜片中心到周边曲率是连续变化的。与从镜片中心到周边有恒定曲率的球面镜片不同，非球面镜片具有更佳的曲率半径特性，具有改善歪曲像差及改善像散像差的优点。采用非球面镜片后，能够尽可能地消除在成像的时候出现的像差，从而提升镜头的成像质量。例如，第七透镜可为非球面镜片，以减小周边光线到达成像面的光程，同时还可以矫正系统的轴外点像差，优化畸变、CRA等光学性能。理想地，第二透镜、第三透镜和第七透镜均为非球面镜片，以有效地提升镜头的成像质量。另外，第一透镜、第五透镜和第六透镜中的一个或多个还可采用非球面镜片，以提高成像质量。应理解的是，为了提高成像质量，根据本申请的光学镜头可增加非球面镜片的数量。
在示例性实施方式中，光学镜头所采用的镜片可以是塑料材质的镜片，还可以是玻璃材质的镜片。塑料材质的镜片热膨胀系数较大，当镜头所使用的环境温度变化较大时，塑料材质的透镜会引起镜头的光学后焦变化量较大。采用玻璃材质的镜片，可减小温度对镜头光学后焦的影响。根据本申请的光学镜头的第一透镜可采用玻璃镜片，以减小环境对系统整体的影响，提升光学镜头的整体性能。理想地，第一透镜可采用玻璃非球面镜片，以进一步提升成像质量，减小前端口径。
根据本申请的上述实施方式的光学镜头通过优化设置镜片形状，合理分配光焦度，合理选取镜片材料，可减小前端口径，缩短TTL，保证镜头的小型化的同时，实现高解像、超大视场角的特性；另外，根据本申请的镜头采用7枚镜片，可达到四百万像素以上，能够实现更高的清晰度；根据本申请的镜头相对常规广角镜头具有较长的焦距，中心区域具备大角分辨率，可以提高环境物体辨识度，针对性的增大中心部分探测区域；本申请通过设置胶合镜片正负镜片的位置，有效得降低公差敏感性。根据本申请的上述实施方式的光学镜头能够更好地符合车载镜头的要求。
再一方面，第一透镜可具有负光焦度，其物侧面可为凸面，像侧面可为凹面。第一透镜设置为凸面朝向物侧的弯月形状能够尽可能得收集大视场光线，使光线进入后方光学系统。在实际应用中，考虑到车载应用类镜头室外安装使用环境，会处于雨雪等恶劣天气，这样凸面朝向物侧的弯月形状，有利于水滴的滑落，减小对成像的影响。进一步地，第一透镜可采用玻璃非球面镜片，以进一步提高成像质量及减小前端口径。同时，第一透镜也可使用高折射率材料，例如，Nd1≥1.65，更理想地，可进一步满足Nd1≥1.7，以有利于减小前端口径，提高成像质量。
第二透镜可具有负光焦度，其物侧面可为凸面，像侧面可为凹面。第二透镜可将第一透镜收集的光线进行适当压缩，使光线走势平稳过渡。第二透镜的像侧面设置为凹面，可有利于减小第一透镜与第二透镜之间的距离，更易缩短光学镜头的物理总长，实现小型化。
第三透镜可具有负光焦度，其物侧面可为凹面，像侧面可为凸面。第三透镜具有负光焦 度，可平衡由前两组镜片引入的球差以及位置色差，同时凹面朝向物侧的弯月形状设置，可有利于减小光学系统总长。
第四透镜可具有正光焦度，其物侧面和像侧面均可为凸面。第四透镜可会聚光线，使发散的光线顺利进入后方光学系统，可将光线进行压缩，使光线走势平稳过渡。
第五透镜可具有正光焦度，其物侧面和像侧面均可为凸面。
第六透镜可具有负光焦度，其物侧面和像侧面均可为凹面。
第七透镜可具有正光焦度，其物侧面和像侧面均可为凸面。第七透镜为会聚透镜，使得光线在最后可有效平稳地汇聚，使光线平稳到达成像面，减轻整体重量与成本；而且最后一枚透镜第七透镜具有短焦距，可有助于收光，保证系统通光量。
在示例性实施方式中，可在例如第四透镜与第五透镜之间设置用于限制光束的光阑，以进一步提高镜头的成像质量。设置的光阑可有有效收束前后光线，缩短光学系统总长，减小前后镜片组口径。然而，应注意，此处公开的光阑的位置仅是示例而非限制；在替代的实施方式中，也可根据实际需要将光阑设置在其他位置。
在示例性实施方式中，根据需要，根据本申请的光学镜头还可包括设置在第七透镜与成像面之间的滤光片，以对具有不同波长的光线进行过滤；以及还可包括设置在滤光片与成像面之间的保护玻璃，以防止光学镜头的内部元件(例如，芯片)被损坏。
如本领域技术人员已知的，胶合透镜可用于最大限度地减少色差或消除色差。在光学镜头中使用胶合透镜能够改善像质、减少光能量的反射损失，从而提升镜头成像的清晰度。另外，胶合透镜的使用还可简化镜头制造过程中的装配程序。
在示例性实施方式中，可通过将第五透镜的像侧面与第六透镜的物侧面胶合，而将第五透镜和第六透镜组合成胶合透镜。在该胶合透镜中，正透镜第五透镜排布在前，负透镜第六透镜排布在后，这样的排布方式可将前方光线进一步汇聚后再过渡至后方。正负透镜双胶合的透镜组合，可以自身消色差，减小公差敏感度，也可以残留部分色差以平衡系统的色差。
在示例性实施方式中，光学镜头的最大视场角FOV、光学镜头的最大视场角所对应的第一透镜物侧面的最大通光口径D以及光学镜头的最大视场角所对应的像高h之间可满足：D/h/FOV≤0.025，更理想地，可进一步满足D/h/FOV≤0.02。满足条件式D/h/FOV≤0.025，可保证前端小口径。
在示例性实施方式中，光学镜头的最大视场角度FOV、光学镜头的整组焦距值F以及光学镜头最大视场角所对应的像高h之间可满足：(FOV×F)/h≥50，更理想地，可进一步满足(FOV×F)/h≥55。满足条件式(FOV×F)/h≥50，可实现大角分辨率。
在示例性实施方式中，第二透镜的焦距值F2与第三透镜的焦距值F3之间可满足：F3/F2≤1.6，更理想地，可进一步满足F3/F2≤1.4。通过合理设置相邻两镜片的光焦度，可有助于光线的平稳过渡。
在示例性实施方式中，光学镜头的光学后焦BFL与光学镜头的光学总长度TTL之间可满足：BFL/TTL≥0.05，更理想地，可进一步满足BFL/TTL≥0.08。满足条件式BFL/TTL≥ 0.05时，可在实现小型化的基础上，具有长后焦，有利于光学模组的组装。
在示例性实施方式中，光学镜头的光学总长度TTL、光学镜头的最大视场角FOV以及光学镜头的最大视场角所对应的像高h之间可满足：TTL/h/FOV≤0.025，更理想地，可进一步满足TTL/h/FOV≤0.02。满足条件式TTL/h/FOV≤0.025时，可实现小型化特性，对比于其它镜头，在相同视场角下的相同成像面下，TTL更短。
在示例性实施方式中，第六透镜和第七透镜之间的空气间隔d12与光学镜头的光学总长度TTL之间可满足：d12/TTL≤0.035，更理想地，可进一步满足d12/TTL≤0.03。满足条件式d12/TTL≤0.035，有助于使经过第五透镜和第六透镜(胶合透镜)发散后的光线平稳过渡至后方透镜。
在示例性实施方式中，第七透镜的焦距值F7与光学镜头的整组焦距值F之间可满足：F7/F≤3，更理想地，可进一步满足F7/F≤2.8。通过设置使得第七透镜具有短焦距，可有助于收光，以保证系统通光量。
在示例性实施方式中，第五透镜和第六透镜的组合焦距值F56与光学镜头的整组焦距值F之间可满足：F56/F≤-10，更理想地，可进一步满足F56/F≤-12。通过控制第四透镜和第七透镜之间的光线走势，可减小由于经第四透镜进入的大角度光线引起的像差。
在示例性实施方式中，根据本申请的光学镜头可具有至少三个非球面镜片。非球面镜片的特点是：从镜片中心到周边曲率是连续变化的。与从镜片中心到周边有恒定曲率的球面镜片不同，非球面镜片具有更佳的曲率半径特性，具有改善歪曲像差及改善像散像差的优点。采用非球面镜片后，能够尽可能地消除在成像的时候出现的像差，从而提升镜头的成像质量。如上所述，第一透镜可采用非球面镜片，以提高成像质量。例如，第七透镜可采用非球面镜片，以减小周边光线到达成像面的光程，同时矫正系统的轴外点像差，优化畸变、CRA等光学性能。应理解的是，为了提高成像质量，根据本申请的光学镜头可增加非球面镜片的数量。
在示例性实施方式中，光学镜头所采用的镜片可以是塑料材质的镜片，还可以是玻璃材质的镜片。塑料材质的镜片热膨胀系数较大，当镜头所使用的环境温度变化较大时，塑料材质的透镜会引起镜头的光学后焦变化量较大。采用玻璃材质的镜片，可减小温度对镜头光学后焦的影响，但是成本较高。如上所述，第一透镜可采用玻璃镜片。理想地，第一透镜至第七透镜均可采用玻璃镜片，以使光学镜头在高低温使用环境下具有更稳定的温度性能。
根据本申请的上述实施方式的光学镜头通过优化设置镜片形状，合理分配光焦度，可减小前端口径，缩短TTL，保证镜头小型化的同时，提升解像力。该光学镜头的像素可达到四百万像素以上，能够实现更高的清晰度。该光学镜头相对常规广角镜头具有较长的焦距，中心区域具备大角分辨率，可提高环境物体辨识度，针对性的增大中心部分探测区域。根据本申请的光学镜头可采用全玻架构，在高低温使用环境下具有更稳定的热性能，大大提高自动驾驶的安全性。因此，根据本申请上述实施方式的光学镜头能够更好地符合例如车载应用的要求。
然而，本领域的技术人员应当理解，在未背离本申请要求保护的技术方案的情况下，可改变构成镜头的透镜数量，来获得本说明书中描述的各个结果和优点。例如，虽然在实施方式中以七个透镜为例进行了描述，但是该光学镜头不限于包括七个透镜。如果需要，该光学镜头还可包括其它数量的透镜。
下面参照附图进一步描述可适用于上述实施方式的光学镜头的具体实施例。
实施例1
以下参照图1描述根据本申请实施例1的光学镜头。图1示出了根据本申请实施例1的光学镜头的结构示意图。
如图1所示，光学镜头沿着光轴从物侧至成像侧依序包括第一透镜L1、第二透镜L2、第三透镜L3、第四透镜L4、第五透镜L5、第六透镜L6和第七透镜L7。
第一透镜L1为具有负光焦度的弯月透镜，其物侧面S1为凸面，像侧面S2为凹面。第二透镜L2为具有负光焦度的弯月透镜，其物侧面S3为凸面，像侧面S4为凹面。第三透镜L3为具有负光焦度的双凹透镜，其物侧面S5和像侧面S6均为凹面。另外，第三透镜L3为非球面镜片，其物侧面S5和像侧面S6均为非球面。第四透镜L4为具有正光焦度的双凸透镜，其物侧面S7和像侧面S8均为凸面。第五透镜L5为具有正光焦度的双凸透镜，其物侧面S10和像侧面S11均为凸面。另外，第五透镜L5为非球面镜片，其物侧面S10和像侧面S11均为非球面。第六透镜L6为具有负光焦度的双凹透镜，其物侧面S11和像侧面S12均为凹面。另外，第六透镜L6为非球面镜片，其物侧面S11和像侧面S12均为非球面。其中，第五透镜L5和第六透镜L6相互胶合组成胶合透镜。第七透镜L7为具有正光焦度的双凸透镜，其物侧面S13和像侧面S14均为凸面。另外，第七透镜L7为非球面镜片，其物侧面S13和像侧面S14均为非球面。
可选地，该光学镜头还可包括具有物侧面S15和像侧面S16的滤光片L8和具有物侧面S17和像侧面S18的保护透镜L9。滤光片L8可用于校正色彩偏差。保护透镜L9可用于保护位于成像面IMA的图像传感芯片。来自物体的光依序穿过各表面S1至S18并最终成像在成像面IMA上。
在本实施例的光学镜头中，可在第四透镜L4与第五透镜L5之间(即，第四透镜L4与胶合透镜之间)设置光阑STO以提高成像质量。
表1示出了实施例1的光学镜头的各透镜的曲率半径R、厚度T、折射率Nd以及阿贝数Vd，其中，曲率半径R和厚度T的单位均为毫米(mm)。
表1
面号 曲率半径R 厚度T 折射率Nd 阿贝数Vd
1 10.2000 1.0000 1.77 49.61
2 3.8000 2.9200    
3 19.3000 0.5000 1.77 49.61
4 2.4000 1.3000    
5 -25.9000 0.8500 1.54 56.00
6 4.5000 0.4000    
7 4.7000 2.4000 1.92 20.88
8 -23.4000 0.2440    
STO 无穷 0.1740    
10 4.4000 2.1000 1.54 56.00
11 -1.8000 0.5800 1.64 23.53
12 10.0000 0.5580    
13 3.3000 2.5000 1.59 61.16
14 -4.7000 0.1000    
15 无穷 0.5500 1.52 64.21
16 无穷 0.5000    
17 无穷 0.4000 1.52 64.21
18 无穷 2.2000    
IMA 无穷      
本实施例采用了七片透镜作为示例，通过合理分配各个透镜的光焦度与面型，各透镜的中心厚度以及各透镜间的空气间隔，可使镜头具有小型化、高解像、低成本、前端小口径、温度性能良好等有益效果中的至少一个。各非球面面型Z由以下公式限定：
Figure PCTCN2019082155-appb-000001
其中，Z为非球面沿光轴方向在高度为h的位置时，距非球面顶点的距离矢高；c为非球面的近轴曲率，c＝1/R(即，近轴曲率c为上表1中曲率半径R的倒数)；k为圆锥系数conic；A、B、C、D、E均为高次项系数。下表2示出了可用于实施例1中的非球面透镜表面S5、S6、S10-S14的圆锥系数k以及高次项系数A、B、C、D和E。
表2
面号 K A B C D E
5 0.0000 -7.7679E-03 5.7406E-04 1.0166E-04 4.9333E-06 -3.3705E-07
6 -5.2609 -2.2839E-04 -2.3626E-03 1.7896E-03 -4.3271E-04 8.7120E-05
10 0.0000 1.7843E-03 -3.6582E-03 4.7222E-03 -1.9787E-03 1.5540E-04
11 0.0000 -6.9696E-02 2.7876E-02 -1.5212E-02 5.4528E-03 -1.7209E-03
12 0.0000 -3.0812E-02 1.0730E-02 -2.7698E-03 5.1930E-04 -2.0319E-05
13 -6.8067 -4.4136E-03 7.7472E-04 -3.8967E-04 7.9255E-05 -8.9638E-06
14 0.0000 2.0513E-03 -1.7451E-04 -3.3349E-05 2.0447E-06 3.5016E-07
下表3给出了实施例1的光学镜头的整组焦距值F、第一透镜L1的材料的折射率Nd1、第三透镜L3的物侧面S5的曲率半径r31、第三透镜L3的像侧面S6的曲率半径r32、第三透镜L3的中心厚度d3、光学镜头最大视场角所对应的第一透镜L1的物侧面S1的最大通光 口径D、光学镜头最大视场角所对应的像高h、光学镜头的最大视场角FOV、光学镜头的光学后焦BFL(即，从最后一个透镜第七透镜L7的像侧面S14的中心至成像面S19的轴上距离)以及光学镜头的光学总长度TTL(即，从第一透镜L1的物侧面S1的中心至成像面S19的轴上距离)。
表3
F(mm) 1.517 h(mm) 5.216
Nd1 1.77 FOV(°) 196
|r31|(mm) 25.900 BFL(mm) 3.750
|r32|(mm) 4.500 TTL(mm) 19.276
d3(mm) 0.850    
D(mm) 13.830    
在本实施例中，第三透镜L3的物侧面S5的曲率半径r31、第三透镜L3的像侧面S6的曲率半径r32与第三透镜L3的中心厚度d3之间满足(|r31|+d3)/|r32|＝5.944；光学镜头的最大视场角度FOV、光学镜头最大视场角所对应的第一透镜L1的物侧面S1的最大通光口径D以及光学镜头最大视场角所对应的像高h之间满足D/h/FOV＝0.014；光学镜头的光学后焦BFL与光学镜头的光学总长度TTL之间满足BFL/TTL＝0.195；以及光学镜头的光学总长度TTL、光学镜头最大视场角所对应的像高h与光学镜头的最大视场角度FOV之间满足TTL/h/FOV＝0.019。
实施例2
以下参照图2描述了根据本申请实施例2的光学镜头。在本实施例及以下实施例中，为简洁起见，将省略部分与实施例1相似的描述。图2示出了根据本申请实施例2的光学镜头的结构示意图。
如图2所示，光学镜头沿着光轴从物侧至成像侧依序包括包括第一透镜L1、第二透镜L2、第三透镜L3、第四透镜L4、第五透镜L5、第六透镜L6和第七透镜L7。
第一透镜L1为具有负光焦度的弯月透镜，其物侧面S1为凸面，像侧面S2为凹面。第二透镜L2为具有负光焦度的弯月透镜，其物侧面S3为凸面，像侧面S4为凹面。第三透镜L3为具有负光焦度的双凹透镜，其物侧面S5和像侧面S6均为凹面。另外，第三透镜L3为非球面镜片，其物侧面S5和像侧面S6均为非球面。第四透镜L4为具有正光焦度的弯月透镜，其物侧面S7为凸面，像侧面S8为凹面。第五透镜L5为具有正光焦度的双凸透镜，其物侧面S10和像侧面S11均为凸面。另外，第五透镜L5为非球面镜片，其物侧面S10和像侧面S11均为非球面。第六透镜L6为具有负光焦度的双凹透镜，其物侧面S11和像侧面S12均为凹面。另外，第六透镜L6为非球面镜片，其物侧面S11和像侧面S12均为非球面。其中，第五透镜L5和第六透镜L6相互胶合组成胶合透镜。第七透镜L7为具有正光焦度的 双凸透镜，其物侧面S13和像侧面S14均为凸面。另外，第七透镜L7为非球面镜片，其物侧面S13和像侧面S14均为非球面。
可选地，该光学镜头还可包括具有物侧面S15和像侧面S16的滤光片L8和具有物侧面S17和像侧面S18的保护透镜L9。滤光片L8可用于校正色彩偏差。保护透镜L9可用于保护位于成像面IMA的图像传感芯片。来自物体的光依序穿过各表面S1至S18并最终成像在成像面IMA上。
在本实施例的光学镜头中，可在第四透镜L4与第五透镜L5之间(即，第四透镜L4与胶合透镜之间)设置光阑STO以提高成像质量。
本实施例采用了七片透镜作为示例，通过合理分配各个透镜的光焦度与面型，各透镜的中心厚度以及各透镜间的空气间隔，可使镜头具有小型化、高解像、低成本、前端小口径、温度性能良好等有益效果中的至少一个。
下表4示出了实施例2的光学镜头的各透镜的曲率半径R、厚度T、折射率Nd以及阿贝数Vd，其中，曲率半径R和厚度T的单位均为毫米(mm)。下表5示出了可用于实施例2中非球面透镜表面S5、S6、S10-S14的圆锥系数k以及高次项系数A、B、C、D和E。其中，各非球面面型可由上述实施例1中给出的公式(1)限定。下表6给出了实施例2的光学镜头的整组焦距值F、第一透镜L1的材料的折射率Nd1、第三透镜L3的物侧面S5的曲率半径r31、第三透镜L3的像侧面S6的曲率半径r32、第三透镜L3的中心厚度d3、光学镜头最大视场角所对应的第一透镜L1的物侧面S1的最大通光口径D、光学镜头最大视场角所对应的像高h、光学镜头的最大视场角FOV、光学镜头的光学后焦BFL(即，从最后一个透镜第七透镜L7的像侧面S14的中心至成像面S19的轴上距离)以及光学镜头的光学总长度TTL(即，从第一透镜L1的物侧面S1的中心至成像面S19的轴上距离)。
表4
面号 曲率半径R 厚度T 折射率Nd 阿贝数Vd
1 9.0000 1.0000 1.80 46.57
2 3.5000 2.2500    
3 11.7000 0.6000 1.77 49.61
4 2.3000 1.5700    
5 -5.3000 0.8400 1.54 56.11
6 9.5000 0.4000    
7 4.0000 2.1000 1.92 20.88
8 54.7000 0.1000    
STO 无穷 0.1500    
10 3.5000 2.1000 1.54 56.11
11 -1.8000 0.5800 1.64 23.53
12 10.6000 0.5000    
13 3.3000 2.4000 1.59 61.16
14 -4.5000 0.1000    
15 无穷 0.5500 1.52 64.17
16 无穷 0.5000    
17 无穷 0.4000 1.52 64.17
18 无穷 1.8000    
IMA 无穷      
表5
面号 K A B C D E
5 0 -5.5352E-03 6.2754E-04 1.7277E-04 -6.0125E-06 -2.8063E-06
6 -31.188548 -1.4680E-03 -1.9551E-03 1.7968E-03 -4.2798E-04 8.7120E-05
10 0 -5.1674E-03 -3.0060E-03 4.5413E-03 -1.9708E-03 1.5540E-04
11 0 -6.7613E-02 2.0916E-02 -1.1965E-02 4.6629E-03 -4.3022E-04
12 0 -3.0587E-02 1.0840E-02 -2.7738E-03 5.0917E-04 -8.1275E-05
13 -7.161578 -4.5768E-03 8.3462E-04 -3.8943E-04 7.8644E-05 -8.9361E-06
14 0 1.7889E-03 -9.1603E-05 -3.9052E-05 1.7705E-06 4.2037E-07
表6
F(mm) 1.493 h(mm) 5.030
Nd1 1.8 FOV(°) 196
|r31|(mm) 5.300 BFL(mm) 3.350
|r32|(mm) 9.500 TTL(mm) 17.940
d3(mm) 0.840    
D(mm) 12.478    
在本实施例中，第三透镜L3的物侧面S5的曲率半径r31、第三透镜L3的像侧面S6的曲率半径r32与第三透镜L3的中心厚度d3之间满足(|r31|+d3)/|r32|＝0.646；光学镜头的最大视场角度FOV、光学镜头最大视场角所对应的第一透镜L1的物侧面S1的最大通光口径D以及光学镜头最大视场角所对应的像高h之间满足D/h/FOV＝0.013；光学镜头的光学后焦BFL与光学镜头的光学总长度TTL之间满足BFL/TTL＝0.187；以及光学镜头的光学总长度TTL、光学镜头最大视场角所对应的像高h与光学镜头的最大视场角度FOV之间满足TTL/h/FOV＝0.018。
实施例3
以下参照图3描述了根据本申请实施例3的光学镜头。在本实施例及以下实施例中，为简洁起见，将省略部分与实施例1相似的描述。图3示出了根据本申请实施例3的光学镜头的结构示意图。
如图3所示，光学镜头沿着光轴从物侧至成像侧依序包括包括第一透镜L1、第二透镜L2、第三透镜L3、第四透镜L4、第五透镜L5、第六透镜L6和第七透镜L7。
第一透镜L1为具有负光焦度的弯月透镜，其物侧面S1为凸面，像侧面S2为凹面。第二透镜L2为具有负光焦度的弯月透镜，其物侧面S3为凸面，像侧面S4为凹面。另外，第 二透镜L2为非球面镜片，其物侧面S3和像侧面S4均为非球面第三透镜L3为具有负光焦度的双凹透镜，其物侧面S5和像侧面S6均为凹面。另外，第三透镜L3为非球面镜片，其物侧面S5和像侧面S6均为非球面。第四透镜L4为具有正光焦度的弯月透镜，其物侧面S7为凸面，像侧面S8为凹面。第五透镜L5为具有正光焦度的双凸透镜，其物侧面S10和像侧面S11均为凸面。另外，第五透镜L5为非球面镜片，其物侧面S10和像侧面S11均为非球面。第六透镜L6为具有负光焦度的双凹透镜，其物侧面S11和像侧面S12均为凹面。另外，第六透镜L6为非球面镜片，其物侧面S11和像侧面S12均为非球面。其中，第五透镜L5和第六透镜L6相互胶合组成胶合透镜。第七透镜L7为具有正光焦度的双凸透镜，其物侧面S13和像侧面S14均为凸面。另外，第七透镜L7为非球面镜片，其物侧面S13和像侧面S14均为非球面。
可选地，该光学镜头还可包括具有物侧面S15和像侧面S16的滤光片L8和具有物侧面S17和像侧面S18的保护透镜L9。滤光片L8可用于校正色彩偏差。保护透镜L9可用于保护位于成像面IMA的图像传感芯片。来自物体的光依序穿过各表面S1至S18并最终成像在成像面IMA上。
在本实施例的光学镜头中，可在第四透镜L4与第五透镜L5之间(即，第四透镜L4与胶合透镜之间)设置光阑STO以提高成像质量。
本实施例采用了七片透镜作为示例，通过合理分配各个透镜的光焦度与面型，各透镜的中心厚度以及各透镜间的空气间隔，可使镜头具有小型化、高解像、低成本、前端小口径、温度性能良好等有益效果中的至少一个。
下表7示出了实施例3的光学镜头的各透镜的曲率半径R、厚度T、折射率Nd以及阿贝数Vd，其中，曲率半径R和厚度T的单位均为毫米(mm)。下表8示出了可用于实施例3中非球面透镜表面S3-S6、S10-S14的圆锥系数k以及高次项系数A、B、C、D和E。其中，各非球面面型可由上述实施例1中给出的公式(1)限定。下表9给出了实施例3的光学镜头的整组焦距值F、第一透镜L1的材料的折射率Nd1、第三透镜L3的物侧面S5的曲率半径r31、第三透镜L3的像侧面S6的曲率半径r32、第三透镜L3的中心厚度d3、光学镜头最大视场角所对应的第一透镜L1的物侧面S1的最大通光口径D、光学镜头最大视场角所对应的像高h、光学镜头的最大视场角FOV、光学镜头的光学后焦BFL(即，从最后一个透镜第七透镜L7的像侧面S14的中心至成像面S19的轴上距离)以及光学镜头的光学总长度TTL(即，从第一透镜L1的物侧面S1的中心至成像面S19的轴上距离)。
表7
面号 曲率半径R 厚度T 折射率Nd 阿贝数Vd
1 10.3000 1.0000 1.77 49.61
2 3.3000 2.3000    
3 36.4000 0.6000 1.54 56.11
4 2.0000 1.5600    
5 -3.4000 0.8400 1.54 56.00
6 26.0000 0.0700    
7 3.5000 1.5800 1.92 20.88
8 20.4000 0.1000    
STO 无穷 0.1500    
10 3.0000 2.1000 1.54 56.00
11 -1.6000 0.5800 1.64 23.53
12 12.3000 0.4600    
13 3.2000 2.4000 1.59 61.16
14 -4.0000 0.1000    
15 无穷 0.5500 1.52 64.21
16 无穷 0.1000    
17 无穷 0.4000 1.52 64.21
18 无穷 1.2000    
IMA 无穷      
表8
面号 K A B C D E
3 0.0000 2.4718E-03 -2.2737E-05 -9.0605E-06 -5.2396E-07 9.0088E-08
4 0.0000 1.2019E-03 -3.7074E-04 8.3937E-04 -1.1458E-04 -3.8856E-15
5 0.0000 1.4846E-03 1.6877E-03 -7.0954E-05 -6.8738E-05 9.3558E-06
6 -778.4501 2.1543E-03 -1.3294E-03 1.2485E-03 -3.3753E-04 4.3560E-05
10 0.0000 -1.2827E-02 -1.4919E-04 3.0007E-03 -3.1310E-03 3.1080E-04
11 0.0000 -5.2983E-02 3.9616E-03 -1.9028E-03 2.9815E-03 -4.3022E-04
12 0.0000 -2.9858E-02 1.0882E-02 -2.7895E-03 5.3184E-04 -9.0565E-05
13 -7.368392 -3.6104E-03 8.2765E-04 -3.9850E-04 3.8968E-05 -4.3137E-06
14 0.0000 3.7122E-03 -4.1116E-05 -5.3617E-05 6.7947E-07 2.1656E-06
表9
F(mm) 1.510 h(mm) 5.318
Nd1 1.77 FOV(°) 196
|r31|(mm) 3.400 BFL(mm) 2.350
|r32|(mm) 26.000 TTL(mm) 16.090
d3(mm) 0.840    
D(mm) 12.658    
在本实施例中，第三透镜L3的物侧面S5的曲率半径r31、第三透镜L3的像侧面S6的曲率半径r32与第三透镜L3的中心厚度d3之间满足(|r31|+d3)/|r32|＝0.163；光学镜头的最大视场角度FOV、光学镜头最大视场角所对应的第一透镜L1的物侧面S1的最大通光口径D以及光学镜头最大视场角所对应的像高h之间满足D/h/FOV＝0.012；光学镜头的光学后焦BFL与光学镜头的光学总长度TTL之间满足BFL/TTL＝0.146；以及光学镜头的光学总长度TTL、光学镜头最大视场角所对应的像高h与光学镜头的最大视场角度FOV之间满足TTL/h/FOV＝0.015。
实施例4
以下参照图4描述根据本申请实施例4的光学镜头。图4示出了根据本申请实施例4的光学镜头的结构示意图。
如图4所示，光学镜头沿着光轴从物侧至成像侧依序包括第一透镜L1、第二透镜L2、第三透镜L3、第四透镜L4、第五透镜L5、第六透镜L6和第七透镜L7。
第一透镜L1为具有负光焦度的凸面朝向物侧的弯月透镜，其物侧面S1为凸面，其像侧面S2为凹面。第二透镜L2为具有负光焦度的凸面朝向物侧的弯月透镜，其物侧面S3为凸面，其像侧面S4为凹面。第三透镜L3为具有负光焦度的凸面朝向像侧的弯月透镜，其物侧面S5为凹面，其像侧面S6为凸面。第四透镜L4为具有正光焦度的凸面朝向物侧的弯月透镜，其物侧面S7为凸面，其像侧面S8为凹面。第五透镜L5为具有正光焦度的双凸透镜，其物侧面S10和像侧面S11均为凸面。第六透镜L6为具有负光焦度的双凹透镜，其物侧面S11和像侧面12均为凹面。第七透镜L7为具有正光焦度的双凸透镜，其物侧面S13和像侧面S14均为凸面。
在本实施例中，第二透镜L2、第三透镜L3、第五透镜L5、第六透镜L6和第七透镜L7为非球面镜片。第五透镜L5和第六透镜L6胶合在一起，因此，第五透镜L5的像侧面S11和第六透镜L6的物侧面S11为同一表面。
第七透镜L7后方设置有滤光片L8，该滤光片L8具有物侧面S15和像侧面S16。滤光片L8后方设置有保护玻璃L9，该保护玻璃L9具有物侧面S17和像侧面S18。在保护玻璃L9后方设置有成像面IMA(即，成像面S19)，以接收通过光学系统所成的像。
可选地，在第四透镜L4与由第五透镜L5和第六透镜L6形成的胶合件之间设置有光阑STO，以收束前后光线，缩短光学系统的总长，减小前后镜片组口径，提升成像质量。
表10示出了实施例4的光学镜头的各透镜的表面参数，包括曲率半径R、厚度T、折射率Nd以及阿贝数Vd，其中，曲率半径R和厚度T的单位均为毫米(mm)。
表10
面号 曲率半径R 厚度T 折射率Nd 阿贝数Vd
1 11.0000 1.1000 1.77 49.6
2 3.0000 1.5620    
3 4.0000 0.7000 1.51 56.3
4 1.0000 1.8500    
5 -4.0000 0.7000 1.54 56.0
6 -21.0000 0.1000    
7 3.0000 1.8000 1.92 20.9
8 9.0000 0.0800    
STO 无穷大 0.0900    
10 3.0000 1.5500 1.54 56.0
11 -1.5000 0.6000 1.64 23.5
12 3.5000 0.1000    
13 2.0000 2.2000 1.54 56.0
14 -2.0000 0.1000    
15 无穷大 0.5500 1.52 64.2
16 无穷大 0.5000    
17 无穷大 0.4000 1.52 64.2
18 无穷大 1.0000    
IMA 无穷大      
表11示出了适用于本实施例中的各非球面镜片的表面S3、S4、S5、S6、S10、S11、S12、S13和S14的圆锥系数K以及高次项系数A、B、C、D、E。其中，各非球面面型可由上述实施例1中给出的公式(1)限定。
表11
面号 K A B C D E
3 -0.4480 5.7466E-03 -3.0682E-03 -1.0815E-05 5.2732E-06 -2.7859E-08
4 -0.8665 2.3826E-02 5.9123E-03 -3.5102E-03 1.0671E-03 -3.0260E-04
5 -4.7919 1.9931E-02 5.9832E-04 -1.5765E-03 6.0019E-04 -4.9021E-05
6 -463.0000 1.5663E-02 1.0425E-03 -1.7845E-03 3.0580E-04 1.5132E-05
10 4.7077 -3.0965E-02 -3.4241E-02 1.3344E-02 7.9788E-03 -2.8327E-02
11 0.2228 -6.9637E-02 -5.7548E-02 7.4466E-02 -2.7338E-02 -1.8730E-02
12 -68.2485 -1.6885E-02 1.8136E-02 -3.5157E-03 -6.2626E-04 1.3538E-04
13 -14.5433 -1.7594E-03 1.0558E-03 8.5322E-05 -3.7938E-05 2.3427E-06
14 -1.8063 -1.3947E-03 -1.3218E-03 3.2079E-04 -9.3842E-05 1.5849E-05
表12示出了本实施例的光学镜头的整组焦距值F、形成光学镜头的第一透镜的材料的折射率Nd1、光学镜头的第四透镜的物侧面的曲率半径r41、光学镜头的第四透镜的像侧面的曲率半径r42、光学镜头的第四透镜的中心厚度d4、光学镜头的最大视场角所对应的第一透镜的物侧面的最大通光口径D、光学镜头的最大视场角所对应的像高h、光学镜头的最大视场角FOV、光学镜头的光学后焦BFL(即，从光学镜头的第七透镜L7的像侧面S14的中心到光学镜头的成像面IMA的距离)以及光学镜头的光学长度TTL(即，从光学镜头的第一透镜L1的物侧面S1的中心到光学镜头的成像面IMA的距离)。
表12
参数 F(mm) Nd1 ∣r41∣(mm) ∣r42∣(mm) d4(mm)
数值 1.139 1.77 3.000 9.000 1.800
参数 D(mm) h(mm) FOV(°) BFL(mm) TTL(mm)
数值 10.528 3.986 194 2.550 14.982
在本实施例中，光学镜头的第四透镜的物侧面的曲率半径r41、光学镜头的第四透镜的像侧面的曲率半径r42以及光学镜头的第四透镜的中心厚度d4之间满足(∣r41∣+d4)/∣r42∣＝0.533；光学镜头的最大视场角所对应的第一透镜的物侧面的最大通光口径D、光学镜头的最大视场角所对应的像高h、光学镜头的最大视场角FOV之间满足D/h/FOV＝0.014；光学镜头的光学后焦BFL以及光学镜头的光学长度TTL之间满足BFL/TTL＝0.170；光学镜头的光学长度TTL、光学镜头的最大视场角所对应的像高h以及光学镜头的最大视场角FOV之间满足TTL/h/FOV＝0.019。
实施例5
以下参照图5描述根据本申请实施例5的光学镜头。图5示出了根据本申请实施例5的光学镜头的结构示意图。
如图5所示，光学镜头沿着光轴从物侧至成像侧依序包括第一透镜L1、第二透镜L2、第三透镜L3、第四透镜L4、第五透镜L5、第六透镜L6和第七透镜L7。
第一透镜L1为具有负光焦度的凸面朝向物侧的弯月透镜，其物侧面S1为凸面，其像侧面S2为凹面。第二透镜L2为具有负光焦度的凸面朝向物侧的弯月透镜，其物侧面S3为凸面，其像侧面S4为凹面。第三透镜L3为具有负光焦度的凸面朝向像侧的弯月透镜，其物侧面S5为凹面，其像侧面S6为凸面。第四透镜L4为具有正光焦度的凸面朝向物侧的弯月透镜，其物侧面S7为凸面，其像侧面S8为凹面。第五透镜L5为具有正光焦度的双凸透镜，其物侧面S10和像侧面S11均为凸面。第六透镜L6为具有负光焦度的双凹透镜，其物侧面S11和像侧面12均为凹面。第七透镜L7为具有正光焦度的双凸透镜，其物侧面S13和像侧面S14均为凸面。
在本实施例中，第二透镜L2、第三透镜L3、第五透镜L5、第六透镜L6和第七透镜L7为非球面镜片。第五透镜L5和第六透镜L6胶合在一起，因此，第五透镜L5的像侧面S11和第六透镜L6的物侧面S11为同一表面。
第七透镜L7后方设置有滤光片L8，该滤光片L8具有物侧面S15和像侧面S16。滤光片L8后方设置有保护玻璃L9，该保护玻璃L9具有物侧面S17和像侧面S18。在保护玻璃L9后方设置有成像面IMA(即，成像面S19)，以接收通过光学系统所成的像。
可选地，在第四透镜L4与由第五透镜L5和第六透镜L6形成的胶合件之间设置有光阑STO，以收束前后光线，缩短光学系统的总长，减小前后镜片组口径，提升成像质量。
表13示出了实施例5的光学镜头的各透镜的表面参数，包括曲率半径R、厚度T、折射率Nd以及阿贝数Vd，其中，曲率半径R和厚度T的单位均为毫米(mm)。
表13
面号 曲率半径R 厚度T 折射率Nd 阿贝数Vd
1 12.5000 1.1000 1.79 47.5
2 4.0000 2.6000    
3 4.0000 0.7500 1.51 57.0
4 1.0000 2.6000    
5 -3.5000 0.7500 1.51 57.0
6 -21.0000 0.1000    
7 3.0000 1.8400 1.92 20.9
8 7.5000 0.0400    
STO 无穷大 0.2000    
10 3.0000 1.5000 1.54 56.1
11 -1.5000 0.7600 1.64 23.5
12 3.5000 0.1300    
13 2.0000 2.0000 1.54 56.1
14 -2.5000 0.1000    
15 无穷大 0.5500 1.52 64.2
16 无穷大 0.5000    
17 无穷大 0.4000 1.52 64.2
18 无穷大 1.3000    
IMA 无穷大      
表14示出了适用于本实施例中的各非球面镜片的表面S3、S4、S5、S6、S10、S11、S12、S13和S14的圆锥系数K以及高次项系数A、B、C、D、E。其中，各非球面面型可由上述实施例1中给出的公式(1)限定。
表14
面号 K A B C D E
3 -0.4717 4.6273E-03 -1.0353E-03 -7.4783E-06 2.3617E-06 -2.2183E-09
4 -0.8333 2.2495E-02 3.8912E-03 -1.8828E-03 5.6859E-04 -1.2572E-04
5 -5.6092 1.4467E-02 -1.4289E-04 -8.3730E-04 2.8505E-04 -5.7600E-05
6 -313.4015 1.1565E-02 -6.8560E-05 -1.0871E-03 1.1942E-04 -6.2988E-06
10 4.5545 -3.0395E-02 -2.6845E-02 5.9662E-03 2.4265E-03 -5.2557E-02
11 -0.2766 -4.6398E-02 -6.6439E-03 3.8912E-02 -1.6296E-02 -9.4646E-04
12 -47.0427 -1.3764E-02 1.1874E-02 -1.9899E-03 -1.9750E-04 5.5985E-05
13 -12.1656 -1.5222E-03 5.4344E-04 1.7183E-05 -1.5218E-05 4.1142E-06
14 -1.9601 -1.2287E-03 -1.0152E-03 1.7267E-04 -4.2909E-05 6.7474E-06
表15示出了本实施例的光学镜头的整组焦距值F、形成光学镜头的第一透镜的材料的折射率Nd1、光学镜头的第四透镜的物侧面的曲率半径r41、光学镜头的第四透镜的像侧面的曲率半径r42、光学镜头的第四透镜的中心厚度d4、光学镜头的最大视场角所对应的第一透镜的物侧面的最大通光口径D、光学镜头的最大视场角所对应的像高h、光学镜头的最大视场角FOV、光学镜头的光学后焦BFL(即，从光学镜头的第七透镜L7的像侧面S14的中心到光学镜头的成像面IMA的距离)以及光学镜头的光学长度TTL(即，从光学镜头的第 一透镜L1的物侧面S1的中心到光学镜头的成像面IMA的距离)。
表15
参数 F(mm) Nd1 ∣r41∣(mm) ∣r42∣(mm) d4(mm)
数值 1.213 1.79 3.000 7.500 1.840
参数 D(mm) h(mm) FOV(°) BFL(mm) TTL(mm)
数值 15.665 5.248 194 2.850 17.220
在本实施例中，光学镜头的第四透镜的物侧面的曲率半径r41、光学镜头的第四透镜的像侧面的曲率半径r42以及光学镜头的第四透镜的中心厚度d4之间满足(∣r41∣+d4)/∣r42∣＝0.645；光学镜头的最大视场角所对应的第一透镜的物侧面的最大通光口径D、光学镜头的最大视场角所对应的像高h、光学镜头的最大视场角FOV之间满足D/h/FOV＝0.015；光学镜头的光学后焦BFL以及光学镜头的光学长度TTL之间满足BFL/TTL＝0.166；光学镜头的光学长度TTL、光学镜头的最大视场角所对应的像高h以及光学镜头的最大视场角FOV之间满足TTL/h/FOV＝0.017。
实施例6
以下参照图6描述根据本申请实施例6的光学镜头。图6示出了根据本申请实施例6的光学镜头的结构示意图。
如图6所示，光学镜头沿着光轴从物侧至成像侧依序包括第一透镜L1、第二透镜L2、第三透镜L3、第四透镜L4、第五透镜L5、第六透镜L6和第七透镜L7。
第一透镜L1为具有负光焦度的凸面朝向物侧的弯月透镜，其物侧面S1为凸面，其像侧面S2为凹面。第二透镜L2为具有负光焦度的凸面朝向物侧的弯月透镜，其物侧面S3为凸面，其像侧面S4为凹面。第三透镜L3为具有负光焦度的凸面朝向像侧的弯月透镜，其物侧面S5为凹面，其像侧面S6为凸面。第四透镜L4为具有正光焦度的凸面朝向物侧的弯月透镜，其物侧面S7为凸面，其像侧面S8为凹面。第五透镜L5为具有正光焦度的双凸透镜，其物侧面S10和像侧面S11均为凸面。第六透镜L6为具有负光焦度的双凹透镜，其物侧面S11和像侧面12均为凹面。第七透镜L7为具有正光焦度的双凸透镜，其物侧面S13和像侧面S14均为凸面。
在本实施例中，第二透镜L2、第三透镜L3、第五透镜L5、第六透镜L6和第七透镜L7为非球面镜片。第五透镜L5和第六透镜L6胶合在一起，因此，第五透镜L5的像侧面S11和第六透镜L6的物侧面S11为同一表面。
第七透镜L7后方设置有滤光片L8，该滤光片L8具有物侧面S15和像侧面S16。滤光片L8后方设置有保护玻璃L9，该保护玻璃L9具有物侧面S17和像侧面S18。在保护玻璃L9后方设置有成像面IMA(即，成像面S19)，以接收通过光学系统所成的像。
可选地，在第四透镜L4与由第五透镜L5和第六透镜L6形成的胶合件之间设置有光阑 STO，以收束前后光线，缩短光学系统的总长，减小前后镜片组口径，提升成像质量。
表16示出了实施例6的光学镜头的各透镜的表面参数，包括曲率半径R、厚度T、折射率Nd以及阿贝数Vd，其中，曲率半径R和厚度T的单位均为毫米(mm)。
表16
面号 曲率半径R 厚度T 折射率Nd 阿贝数Vd
1 16.3783 1.4570 1.82 46.6
2 5.7559 3.3385    
3 24.1543 0.8742 1.54 56.1
4 2.6455 2.2693    
5 -4.8786 1.2289 1.54 56.1
6 -137.3179 0.1011    
7 5.5695 2.3029 1.92 20.9
8 15.0000 0.1457    
STO 无穷大 0.2173    
10 4.4565 3.0597 1.54 56.1
11 -2.2998 0.8451 1.64 23.5
12 18.5610 0.6702    
13 4.6118 3.4580 1.59 61.2
14 -5.5551 0.1457    
15 无穷大 0.5500 1.52 64.2
16 无穷大 1.8423    
17 无穷大 0.4000 1.52 64.2
18 无穷大 0.5000    
IMA 无穷大      
表17示出了适用于本实施例中的各非球面镜片的表面S3、S4、S5、S6、S10、S11、S12、S13和S14的圆锥系数K以及高次项系数A、B、C、D、E。其中，各非球面面型可由上述实施例1中给出的公式(1)限定。
表17
面号 K A B C D E
3 0.0000 7.9913E-04 8.4205E-06 -3.7147E-07 -3.5378E-08 1.4341E-09
4 0.0000 3.3306E-04 -1.4039E-04 5.5337E-05 3.5982E-06 -6.1855E-17
5 0.0000 4.7999E-04 2.5703E-04 -5.0903E-06 -2.3229E-06 1.4893E-07
6 -100.0000 -1.8793E-03 -2.6011E-05 6.4443E-05 -1.1900E-05 6.9342E-07
10 0.0000 -4.0510E-03 -3.0595E-06 2.1935E-04 -5.4714E-05 4.9476E-06
11 0.0000 -1.8189E-02 7.6887E-04 -1.4109E-04 1.4911E-04 -1.3697E-05
12 0.0000 -9.6677E-03 1.6647E-03 -1.9979E-04 1.7899E-05 -1.0813E-06
13 -7.3684 -1.1782E-03 1.2124E-04 -2.8780E-05 2.6460E-06 -6.8670E-08
14 0.0000 1.5256E-03 -7.9888E-06 -3.8422E-06 2.9943E-08 1.7237E-08
表18示出了本实施例的光学镜头的整组焦距值F、形成光学镜头的第一透镜的材料的折射率Nd1、光学镜头的第四透镜的物侧面的曲率半径r41、光学镜头的第四透镜的像侧面的曲率半径r42、光学镜头的第四透镜的中心厚度d4、光学镜头的最大视场角所对应的第一透镜的物侧面的最大通光口径D、光学镜头的最大视场角所对应的像高h、光学镜头的最大视场角FOV、光学镜头的光学后焦BFL(即，从光学镜头的第七透镜L7的像侧面S14的中心到光学镜头的成像面IMA的距离)以及光学镜头的光学长度TTL(即，从光学镜头的第一透镜L1的物侧面S1的中心到光学镜头的成像面IMA的距离)。
表18
参数 F(mm) Nd1 ∣r41∣(mm) ∣r42∣(mm) d4(mm)
数值 2.255 1.82 5.569 15.000 2.303
参数 D(mm) h(mm) FOV(°) BFL(mm) TTL(mm)
数值 19.351 7.254 194 3.438 23.406
在本实施例中，光学镜头的第四透镜的物侧面的曲率半径r41、光学镜头的第四透镜的像侧面的曲率半径r42以及光学镜头的第四透镜的中心厚度d4之间满足(∣r41∣+d4)/∣r42∣＝0.525；光学镜头的最大视场角所对应的第一透镜的物侧面的最大通光口径D、光学镜头的最大视场角所对应的像高h、光学镜头的最大视场角FOV之间满足D/h/FOV＝0.014；光学镜头的光学后焦BFL以及光学镜头的光学长度TTL之间满足BFL/TTL＝0.147；光学镜头的光学长度TTL、光学镜头的最大视场角所对应的像高h以及光学镜头的最大视场角FOV之间满足TTL/h/FOV＝0.017。
实施例7
以下参照图7描述根据本申请实施例7的光学镜头。图7示出了根据本申请实施例7的光学镜头的结构示意图。
如图7所示，光学镜头沿着光轴从物侧至成像侧依序包括第一透镜L1、第二透镜L2、第三透镜L3、第四透镜L4、第五透镜L5、第六透镜L6和第七透镜L7。
第一透镜L1为具有负光焦度的弯月透镜，其物侧面S1为凸面，像侧面S2为凹面。第二透镜L2为具有负光焦度的弯月透镜，其物侧面S3为凸面，像侧面S4为凹面。第三透镜L3为具有负光焦度的弯月透镜，其物侧面S5为凹面，像侧面S6为凸面。第四透镜L4为具有正光焦度的双凸透镜，其物侧面S7和像侧面S8均为凸面。第五透镜L5为具有负光焦度的弯月透镜，其物侧面S10为凸面，像侧面S11为凹面。第六透镜L6为具有正光焦度的双凸透镜，其物侧面S11和像侧面S12均为凸面。其中，第五透镜L5与第六透镜L6互相胶合形成胶合透镜。第七透镜L7为具有正光焦度的双凸透镜，其物侧面S13和像侧面S14均为凸面。
其中，第二透镜L2、第三透镜L3、第五透镜L5、第六透镜L6和第七透镜L7均为非球面镜片，它们各自的物侧面和像侧面均为非球面。
可选地，该光学镜头还可包括具有物侧面S15和像侧面S16的滤光片L8以及具有物侧面S17和像侧面S18的保护透镜L9。滤光片L8可用于校正色彩偏差。保护透镜L9可用于保护位于成像面IMA的图像传感芯片。来自物体的光依序穿过各表面S1至S18并最终成像在成像面IMA上。
在本实施例的光学镜头中，可在第四透镜L4与第五透镜L5之间设置光阑STO以提高成像质量。
表19示出了实施例7的光学镜头的各透镜的曲率半径R、厚度T、折射率Nd以及阿贝数Vd，其中，曲率半径R和厚度T的单位均为毫米(mm)。
表19
面号 曲率半径R 厚度T 折射率Nd 阿贝数Vd
1 16.6528 1.3000 1.78 49.61
2 5.8229 3.1638    
3 19.88 0.6700 1.52 56.98
4 2.4565 3.1552    
5 -5.2358 1.2400 1.54 56.11
6 -10.2055 0.1448    
7 9.3800 2.6000 1.85 23.79
8 -9.3800 -0.1024    
STO 无穷 0.2000    
10 9.7229 2.5200 1.64 23.53
11 1.2856 3.1700 1.54 56.11
12 -8.5820 0.2721    
13 9.3000 2.0000 1.54 56.11
14 -10.2313 1.0026    
15 无穷 0.5500 1.52 64.21
16 无穷 1.9962    
17 无穷 0.4000 1.52 64.21
18 无穷 0.2000    
IMA 无穷      
本实施例采用了七片透镜作为示例，通过合理分配各个透镜的光焦度与面型，各透镜的中心厚度以及各透镜间的空气间隔，可使镜头具有前端小口径、小型化、高解像、超大视场角等有益效果中的至少一个。
下表20示出了可用于实施例7中的非球面透镜表面S3-S6、S10-S14的圆锥系数k以及高次项系数A、B、C、D和E。其中，各非球面面型可由上述实施例1中给出的公式(1)限定。
表20
面号 K A B C D E
3 -120.0000 9.0719E-04 -1.9002E-05 7.5092E-07 -2.7227E-08 6.5158E-10
4 -1.3386 5.9715E-03 3.7850E-04 2.2685E-06 3.3608E-07 3.0604E-07
5 2.2546 -5.5400E-03 4.1069E-04 1.6756E-05 -2.9208E-06 1.0887E-06
6 5.4197 -7.0322E-03 6.3452E-04 -3.9466E-05 5.9219E-06 -1.0475E-07
10 -20.7513 -4.0939E-03 3.0297E-04 -7.4436E-05 4.6143E-05 -1.0335E-05
11 -1.0000 -2.1695E-04 1.8742E-03 -4.7320E-04 6.9285E-05 -4.1979E-06
12 -26.3752 -6.3853E-03 6.5068E-04 -3.7999E-05 3.2830E-06 -1.7631E-07
13 -16.8919 -1.3623E-03 2.2548E-05 4.2354E-06 3.4189E-07 -1.5655E-08
14 0.0000 -9.4350E-04 -5.0312E-05 5.2635E-06 -5.8811E-07 3.6735E-08
下表21给出了实施例7的光学镜头的第一透镜L1的材料折射率Nd1、光学镜头的最大视场角所对应的第一透镜L1的物侧面S1的最大通光口径D、光学镜头的最大视场角所对应的像高h、光学镜头的最大视场角FOV、光学镜头的光学后焦BFL(即，最后一个透镜第七透镜L7的像侧面S14的中心至成像面IMA的轴上距离)、光学镜头的光学总长度TTL(即，从第一透镜L1的物侧面S1的中心至成像面IMA的轴上距离)、光学镜头的整组焦距值F以及第一透镜L1与第二透镜L2之间的空气间隔d2。
表21
Nd1 1.78 TTL(mm) 24.4800
D(mm) 19.3597 F(mm) 2.1569
h(mm) 7.9520 d2(mm) 3.1638
FOV(°) 196    
BFL(mm) 4.1490    
在本实施例中，光学镜头的最大视场角FOV、光学镜头的最大视场角所对应的第一透镜L1的物侧面S1的最大通光口径D以及光学镜头最大视场角所对应的像高h之间满足D/h/FOV＝0.0124；光学镜头的光学后焦BFL与光学镜头的光学总长度TTL之间满足BFL/TTL＝0.1695；光学镜头的光学总长度TTL、光学镜头的最大视场角FOV以及光学镜头最大视场角所对应的像高h之间满足TTL/h/FOV＝0.0157；光学镜头的最大视场角FOV、光学镜头的整组焦距值F与光学镜头最大视场角所对应的像高h之间满足(FOV×F)/h＝53.1623；以及第一透镜L1与第二透镜L2之间的空气间隔d2与光学镜头的光学总长度TTL之间满足d2/TTL＝0.1292。
实施例8
以下参照图8描述了根据本申请实施例8的光学镜头。图8示出了根据本申请实施例8的光学镜头的结构示意图。
如图8所示，光学镜头沿着光轴从物侧至成像侧依序包括第一透镜L1、第二透镜L2、第三透镜L3、第四透镜L4、第五透镜L5、第六透镜L6和第七透镜L7。
第一透镜L1为具有负光焦度的弯月透镜，其物侧面S1为凸面，像侧面S2为凹面。第 二透镜L2为具有负光焦度的双凹透镜，其物侧面S3和像侧面S4均为凹面。第三透镜L3为具有负光焦度的弯月透镜，其物侧面S5为凹面，像侧面S6为凸面。第四透镜L4为具有正光焦度的双凸透镜，其物侧面S7和像侧面S8均为凸面。第五透镜L5为具有负光焦度的弯月透镜，其物侧面S10为凸面，像侧面S11为凹面。第六透镜L6为具有正光焦度的双凸透镜，其物侧面S11和像侧面S12均为凸面。其中，第五透镜L5与第六透镜L6互相胶合形成胶合透镜。第七透镜L7为具有正光焦度的弯月透镜，其物侧面S13为凸面，像侧面S14为凹面。
其中，第二透镜L2、第三透镜L3、第五透镜L5、第六透镜L6和第七透镜L7均为非球面镜片，它们各自的物侧面和像侧面均为非球面。
可选地，该光学镜头还可包括具有物侧面S15和像侧面S16的滤光片L8以及具有物侧面S17和像侧面S18的保护透镜L9。滤光片L8可用于校正色彩偏差。保护透镜L9可用于保护位于成像面IMA的图像传感芯片。来自物体的光依序穿过各表面S1至S18并最终成像在成像面IMA上。
在本实施例的光学镜头中，可在第四透镜L4与第五透镜L5之间设置光阑STO以提高成像质量。
本实施例采用了七片透镜作为示例，通过合理分配各个透镜的光焦度与面型，各透镜的中心厚度以及各透镜间的空气间隔，可使镜头具有前端小口径、小型化、高解像、超大视场角等有益效果中的至少一个。
下表22示出了实施例8的光学镜头的各透镜的曲率半径R、厚度T、折射率Nd以及阿贝数Vd，其中，曲率半径R和厚度T的单位均为毫米(mm)。下表23示出了可用于实施例8中非球面透镜表面S3-S6、S10-S14的圆锥系数k以及高次项系数A、B、C、D和E。其中，各非球面面型可由上述实施例1中给出的公式(1)限定。下表24给出了实施例8的光学镜头的第一透镜L1的材料折射率Nd1、光学镜头的最大视场角所对应的第一透镜L1的物侧面S1的最大通光口径D、光学镜头的最大视场角所对应的像高h、光学镜头的最大视场角FOV、光学镜头的光学后焦BFL(即，最后一个透镜第七透镜L7的像侧面S14的中心至成像面IMA的轴上距离)、光学镜头的光学总长度TTL(即，从第一透镜L1的物侧面S1的中心至成像面IMA的轴上距离)、光学镜头的整组焦距值F以及第一透镜L1与第二透镜L2之间的空气间隔d2。
表22
面号 曲率半径R 厚度T 折射率Nd 阿贝数Vd
1 18.5008 1.2600 1.78 49.61
2 5.8592 3.2384    
3 -187.07 0.7000 1.51 56.98
4 3.6970 3.1884    
5 -5.3519 2.2300 1.54 56.11
6 -6.3387 0.1517    
7 11.0187 2.8000 1.85 23.79
8 -11.0187 0.0984    
STO 无穷 0.2845    
10 15.8930 2.2500 1.64 23.53
11 1.2788 3.9510 1.52 56.11
12 -5.5071 0.2729    
13 9.3095 1.9420 1.53 56.11
14 55.2895 1.2064    
15 无穷 0.5500 1.52 64.21
16 无穷 1.3530    
17 无穷 0.4000 1.52 64.21
18 无穷 0.2000    
IMA 无穷      
表23
面号 K A B C D E
3 100.0000 1.0398E-03 -1.9738E-05 6.9556E-07 -2.4897E-08 3.3278E-10
4 -1.8257 5.3680E-03 1.0405E-04 2.3410E-05 -9.5314E-07 2.3354E-07
5 2.1739 -2.6553E-03 2.3112E-04 5.1904E-06 -2.0496E-06 4.3460E-07
6 0.2950 -3.2079E-03 2.6614E-04 -2.9186E-05 3.7586E-06 -1.9287E-07
10 -75.4200 -5.6252E-03 1.3515E-03 -4.4718E-04 9.0306E-05 -7.6471E-06
11 -1.6087 -2.6063E-03 2.0418E-03 -4.7481E-04 6.5525E-05 -2.0285E-06
12 -11.3200 -6.8123E-03 7.5354E-04 -6.2623E-05 3.4191E-06 -4.4273E-10
13 -3.3949 -8.6463E-04 1.8401E-05 7.8144E-06 3.8484E-07 -1.3099E-08
14 -100.0000 -1.9093E-03 1.0663E-04 6.0381E-06 -1.7304E-07 3.2425E-08
表24
Nd1 1.78 TTL(mm) 26.0767
D(mm) 18.4126 F(mm) 2.4840
h(mm) 7.8860 d2(mm) 3.2384
FOV(°) 196    
BFL(mm) 3.7094    
在本实施例中，光学镜头的最大视场角FOV、光学镜头的最大视场角所对应的第一透镜L1的物侧面S1的最大通光口径D以及光学镜头最大视场角所对应的像高h之间满足D/h/FOV＝0.0119；光学镜头的光学后焦BFL与光学镜头的光学总长度TTL之间满足BFL/TTL＝0.1423；光学镜头的光学总长度TTL、光学镜头的最大视场角FOV以及光学镜头最大视场角所对应的像高h之间满足TTL/h/FOV＝0.0169；光学镜头的最大视场角FOV、光学镜头的整组焦距值F与光学镜头最大视场角所对应的像高h之间满足(FOV×F)/h＝61.7373；以及第一透镜L1与第二透镜L2之间的空气间隔d2与光学镜头的光学总长度TTL之间满足d2/TTL＝0.1242。
实施例9
以下参照图9描述了根据本申请实施例9的光学镜头。图9示出了根据本申请实施例9的光学镜头的结构示意图。
如图9所示，光学镜头沿着光轴从物侧至成像侧依序包括第一透镜L1、第二透镜L2、第三透镜L3、第四透镜L4、第五透镜L5、第六透镜L6和第七透镜L7。
第一透镜L1为具有负光焦度的弯月透镜，其物侧面S1为凸面，像侧面S2为凹面。第二透镜L2为具有负光焦度的双凹透镜，其物侧面S3和像侧面S4均为凹面。第三透镜L3为具有负光焦度的弯月透镜，其物侧面S5为凹面，像侧面S6为凸面。第四透镜L4为具有正光焦度的双凸透镜，其物侧面S7和像侧面S8均为凸面。第五透镜L5为具有负光焦度的弯月透镜，其物侧面S10为凸面，像侧面S11为凹面。第六透镜L6为具有正光焦度的双凸透镜，其物侧面S11和像侧面S12均为凸面。其中，第五透镜L5与第六透镜L6互相胶合形成胶合透镜。第七透镜L7为具有正光焦度的弯月透镜，其物侧面S13为凸面，像侧面S14为凹面。
其中，第二透镜L2、第三透镜L3、第五透镜L5、第六透镜L6和第七透镜L7均为非球面镜片，它们各自的物侧面和像侧面均为非球面。
可选地，该光学镜头还可包括具有物侧面S15和像侧面S16的滤光片L8以及具有物侧面S17和像侧面S18的保护透镜L9。滤光片L8可用于校正色彩偏差。保护透镜L9可用于保护位于成像面IMA的图像传感芯片。来自物体的光依序穿过各表面S1至S18并最终成像在成像面IMA上。
在本实施例的光学镜头中，可在第四透镜L4与第五透镜L5之间设置光阑STO以提高成像质量。
本实施例采用了七片透镜作为示例，通过合理分配各个透镜的光焦度与面型，各透镜的中心厚度以及各透镜间的空气间隔，可使镜头具有前端小口径、小型化、高解像、超大视场角等有益效果中的至少一个。
下表25示出了实施例9的光学镜头的各透镜的曲率半径R、厚度T、折射率Nd以及阿贝数Vd，其中，曲率半径R和厚度T的单位均为毫米(mm)。下表26示出了可用于实施例9中非球面透镜表面S3-S6、S10-S14的圆锥系数k以及高次项系数A、B、C、D和E。其中，各非球面面型可由上述实施例1中给出的公式(1)限定。下表27给出了实施例9的光学镜头的第一透镜L1的材料折射率Nd1、光学镜头的最大视场角所对应的第一透镜L1的物侧面S1的最大通光口径D、光学镜头的最大视场角所对应的像高h、光学镜头的最大视场角FOV、光学镜头的光学后焦BFL(即，最后一个透镜第七透镜L7的像侧面S14的中心至成像面IMA的轴上距离)、光学镜头的光学总长度TTL(即，从第一透镜L1的物侧面S1的中心至成像面IMA的轴上距离)、光学镜头的整组焦距值F以及第一透镜L1与第二透镜L2之间的空气间隔d2。
表25
面号 曲率半径R 厚度T 折射率Nd 阿贝数Vd
1 18.2576 1.2500 1.80 49.62
2 5.6893 3.4220    
3 -82.33 0.8500 1.51 56.98
4 3.9652 3.0229    
5 -5.3459 2.3000 1.54 56.11
6 -6.3302 0.1509    
7 11.1044 2.4800 1.86 24.79
8 -11.1044 0.2979    
STO 无穷 0.1130    
10 15.1194 2.2500 1.64 23.53
11 1.2514 3.9600 1.53 56.11
12 -5.3924 0.2714    
13 9.2946 1.9300 1.54 56.11
14 34.6122 1.2000    
15 无穷 0.5500 1.52 64.21
16 无穷 1.3442    
17 无穷 0.4000 1.52 64.21
18 无穷 0.2000    
IMA 无穷      
表26
面号 K A B C D E
3 99.8929 1.0440E-03 -1.8063E-05 7.2351E-07 -2.8754E-08 2.6814E-10
4 -1.8257 4.9658E-03 1.4236E-04 2.4272E-05 -3.4668E-06 4.3339E-07
5 1.9739 -2.6444E-03 2.7604E-04 1.0090E-05 -2.9035E-06 4.1833E-07
6 0.3950 -3.4684E-03 3.3252E-04 -3.2779E-05 3.3806E-06 -1.6788E-07
10 -87.1001 -5.6492E-03 1.2478E-03 -4.4353E-04 1.1500E-04 -1.3375E-05
11 -1.6490 -1.8266E-03 1.8675E-03 -5.2627E-04 8.9241E-05 -6.1024E-06
12 -11.0217 -6.9034E-03 7.8786E-04 -6.4476E-05 3.8258E-06 -1.4232E-07
13 -2.3949 -1.0842E-03 2.5877E-05 1.0673E-05 4.2935E-07 -3.1761E-08
14 -100.0000 -2.1314E-03 1.2265E-04 7.4357E-06 -2.3808E-07 6.8168E-08
表27
Nd1 1.80 TTL(mm) 25.9922
D(mm) 18.3567 F(mm) 2.4200
h(mm) 7.8880 d2(mm) 3.4220
FOV(°) 196    
BFL(mm) 3.6942    
在本实施例中，光学镜头的最大视场角FOV、光学镜头的最大视场角所对应的第一透镜L1的物侧面S1的最大通光口径D以及光学镜头最大视场角所对应的像高h之间满足D/h/FOV＝0.0119；光学镜头的光学后焦BFL与光学镜头的光学总长度TTL之间满足 BFL/TTL＝0.1421；光学镜头的光学总长度TTL、光学镜头的最大视场角FOV以及光学镜头最大视场角所对应的像高h之间满足TTL/h/FOV＝0.0168；光学镜头的最大视场角FOV、光学镜头的整组焦距值F与光学镜头最大视场角所对应的像高h之间满足(FOV×F)/h＝60.1309；以及第一透镜L1与第二透镜L2之间的空气间隔d2与光学镜头的光学总长度TTL之间满足d2/TTL＝0.1317。
实施例10
以下参照图10描述根据本申请实施例10的光学镜头。图10示出了根据本申请实施例10的光学镜头的结构示意图。
如图10所示，光学镜头沿着光轴从物侧至成像侧依序包括第一透镜L1、第二透镜L2、第三透镜L3、第四透镜L4、第五透镜L5、第六透镜L6和第七透镜L7。
第一透镜L1为具有负光焦度的弯月透镜，其物侧面S1为凸面，像侧面S2为凹面。第二透镜L2为具有负光焦度的弯月透镜，其物侧面S3为凸面，像侧面S4为凹面。第三透镜L3为具有负光焦度的弯月透镜，其物侧面S5为凹面，像侧面S6为凸面。第四透镜L4为具有正光焦度的双凸透镜，其物侧面S7和像侧面S8均为凸面。第五透镜L5为具有正光焦度的双凸透镜，其物侧面S10和像侧面S11均为凸面。第六透镜L6为具有负光焦度的双凹透镜，其物侧面S11和像侧面S12均为凹面。其中，第五透镜L5和第六透镜L6互相胶合形成胶合透镜。第七透镜L7为具有正光焦度的双凸透镜，其物侧面S13和像侧面S14均为凸面。
另外，第三透镜L3、第四透镜L4和第七透镜L7均为非球面镜片，它们的相应物侧面和像侧面均为非球面。
可选地，该光学镜头还可包括具有物侧面S15和像侧面S16的滤光片L8和/或保护透镜L8’。滤光片L8可用于校正色彩偏差。保护透镜L8’可用于保护位于成像面IMA的图像传感芯片。来自物体的光依序穿过各表面S1至S16并最终成像在成像面IMA上。
在本实施例的光学镜头中，可在第四透镜L4与第五透镜L5之间设置光阑STO以提高成像质量。
表28示出了实施例10的光学镜头的各透镜的曲率半径R、厚度T、折射率Nd以及阿贝数Vd，其中，曲率半径R和厚度T的单位均为毫米(mm)。
表28
面号 曲率半径R 厚度T 折射率Nd 阿贝数Vd
1 16.0800 1.1000 1.77 49.61
2 5.8080 3.4645    
3 21.2900 0.9200 1.69 55.57
4 3.4840 3.4810    
5 -4.3273 2.3900 1.59 61.12
6 -70.4100 0.2500    
7 4.1000 3.2320 1.74 49.36
8 -21.6971 0.0181    
STO 无穷 0.3509    
10 4.3730 3.4100 1.50 81.59
11 -2.7057 0.7100 1.77 25.62
12 8.8400 0.4208    
13 7.4830 2.5500 1.56 61.12
14 -4.6658 0.1481    
15 无穷 0.5500 1.52 64.21
16 无穷 2.8222    
IMA 无穷      
本实施例采用了七片透镜作为示例，通过合理分配各个透镜的光焦度与面型，各透镜的中心厚度以及各透镜间的空气间隔，可使镜头具有高解像、小型化、大角分辨率、稳定温度性能、小口径、低成本等有益效果中的至少一个。
下表29示出了可用于实施例10中的非球面透镜表面S5-S8和S13-S14的圆锥系数k以及高次项系数A、B、C、D和E。其中，各非球面面型可由上述实施例1中给出的公式(1)限定。
表29
面号 K A B C D E
5 -7.2000 -8.2445E-03 8.5747E-04 -9.6265E-05 7.2569E-06 -1.7582E-06
6 182.2000 -3.9478E-04 1.9495E-05 6.4909E-06 -5.2342E-07 3.4039E-08
7 -0.6500 1.4043E-04 1.2451E-04 8.1853E-06 -9.1393E-07 1.1089E-07
8 -200.0000 1.3994E-03 4.7349E-04 -1.9176E-05 8.6092E-07 1.0239E-06
13 -8.0877 -2.1965E-03 8.4767E-05 2.6707E-05 -4.0491E-06 2.0031E-07
14 0.0193 7.4617E-04 -9.8830E-05 3.5837E-05 -4.5496E-06 2.8535E-07
下表30给出了实施例10的光学镜头的最大视场角所对应的第一透镜L1的物侧面S1的最大通光口径D、光学镜头的最大视场角所对应的像高h、光学镜头的最大视场角FOV、光学镜头的光学后焦BFL(即，最后一个透镜第七透镜L7的像侧面S14的中心至成像面IMA的轴上距离)、光学镜头的光学总长度TTL(即，从第一透镜L1的物侧面S1的中心至成像面IMA的轴上距离)、光学镜头的整组焦距值F、第二透镜L2和第三透镜L3的焦距值F2-F3、第五透镜L5与第六透镜L6的组合焦距值F56、第七透镜L7的焦距值F7、第六透镜L6与第七透镜L7之间的空气间隔d12以及第一透镜L1的材料折射率Nd1。
表30
D(mm) 19.3953 F3(mm) -7.8935
h(mm) 7.9980 F56(mm) -38.6484
FOV(°) 211 F7(mm) 5.5318
BFL(mm) 3.6550 d12(mm) 0.4208
TTL(mm) 25.8175 Nd1(mm) 1.77
F(mm) 2.2476    
F2(mm) -6.1440    
在本实施例中，光学镜头的最大视场角FOV、光学镜头的最大视场角所对应的第一透镜L1的物侧面S1的最大通光口径D以及光学镜头的最大视场角所对应的像高h之间满足D/h/FOV＝0.0115；光学镜头的光学后焦BFL与光学镜头的光学总长度TTL之间满足BFL/TTL＝0.1416；光学镜头的光学总长度TTL、光学镜头的最大视场角FOV以及光学镜头的最大视场角所对应的像高h之间满足TTL/h/FOV＝0.0153；光学镜头的最大视场角度FOV、光学镜头的整组焦距值F以及光学镜头最大视场角所对应的像高h之间满足(FOV×F)/h＝59.2942；第二透镜L2的焦距值F2与第三透镜L3的焦距值F3之间满足F3/F2＝1.2847；第五透镜L5和第六透镜L6的组合焦距值F56与光学镜头的整组焦距值F之间满足F56/F＝-17.1957；第七透镜L7的焦距值F7与光学镜头的整组焦距值F之间满足F7/F＝2.4612；以及第六透镜L6和第七透镜L7之间的空气间隔d12与光学镜头的光学总长度TTL之间满足d12/TTL＝0.0163。
实施例11
以下参照图11描述了根据本申请实施例11的光学镜头。图11示出了根据本申请实施例11的光学镜头的结构示意图。
如图11所示，光学镜头沿着光轴从物侧至成像侧依序包括第一透镜L1、第二透镜L2、第三透镜L3、第四透镜L4、第五透镜L5、第六透镜L6和第七透镜L7。
第一透镜L1为具有负光焦度的弯月透镜，其物侧面S1为凸面，像侧面S2为凹面。第二透镜L2为具有负光焦度的弯月透镜，其物侧面S3为凸面，像侧面S4为凹面。第三透镜L3为具有负光焦度的弯月透镜，其物侧面S5为凹面，像侧面S6为凸面。第四透镜L4为具有正光焦度的双凸透镜，其物侧面S7和像侧面S8均为凸面。第五透镜L5为具有正光焦度的双凸透镜，其物侧面S10和像侧面S11均为凸面。第六透镜L6为具有负光焦度的双凹透镜，其物侧面S11和像侧面S12均为凹面。其中，第五透镜L5和第六透镜L6互相胶合形成胶合透镜。第七透镜L7为具有正光焦度的双凸透镜，其物侧面S13和像侧面S14均为凸面。
另外，第三透镜L3、第四透镜L4和第七透镜L7均为非球面镜片，它们的相应物侧面和像侧面均为非球面。
可选地，该光学镜头还可包括具有物侧面S15和像侧面S16的滤光片L8和/或保护透镜L8’。滤光片L8可用于校正色彩偏差。保护透镜L8’可用于保护位于成像面IMA的图像传感芯片。来自物体的光依序穿过各表面S1至S16并最终成像在成像面IMA上。
在本实施例的光学镜头中，可在第四透镜L4与第五透镜L5之间设置光阑STO以提高成像质量。
本实施例采用了七片透镜作为示例，通过合理分配各个透镜的光焦度与面型，各透镜的中心厚度以及各透镜间的空气间隔，可使镜头具有高解像、小型化、大角分辨率、稳定温度性能、小口径、低成本等有益效果中的至少一个。
下表31示出了实施例11的光学镜头的各透镜的曲率半径R、厚度T、折射率Nd以及阿贝数Vd，其中，曲率半径R和厚度T的单位均为毫米(mm)。下表32示出了可用于实施例11中非球面透镜表面S5-S8和S13-S14的圆锥系数k以及高次项系数A、B、C、D和E。其中，各非球面面型可由上述实施例1中给出的公式(1)限定。下表33给出了实施例11的光学镜头的最大视场角所对应的第一透镜L1的物侧面S1的最大通光口径D、光学镜头的最大视场角所对应的像高h、光学镜头的最大视场角FOV、光学镜头的光学后焦BFL、光学镜头的光学总长度TTL、光学镜头的整组焦距值F、第二透镜L2和第三透镜L3的焦距值F2-F3、第五透镜L5与第六透镜L6的组合焦距值F56、第七透镜L7的焦距值F7、第六透镜L6与第七透镜L7之间的空气间隔d12以及第一透镜L1的材料折射率Nd1。
表31
面号 曲率半径R 厚度T 折射率Nd 阿贝数Vd
1 16.4000 1.1000 1.77 49.63
2 5.8127 3.3023    
3 19.7800 0.9100 1.69 54.57
4 3.5797 3.5856    
5 -4.2688 2.4200 1.59 61.16
6 -70.0000 0.1791    
7 4.1875 3.4500 1.74 49.34
8 -22.5930 0.0181    
STO 无穷 0.3509    
10 4.3731 3.4700 1.50 81.59
11 -2.8900 0.7100 1.77 25.72
12 8.7000 0.4652    
13 7.5602 3.3720 1.59 61.16
14 -4.7302 0.1481    
15 无穷 0.5500 1.52 64.21
16 无穷 2.4812    
IMA 无穷      
表32
面号 K A B C D E
5 -6.3000 -8.2994E-03 8.6621E-04 -9.7719E-05 6.9255E-06 -1.5023E-07
6 180.0000 -4.4028E-04 2.1103E-05 7.4236E-06 -5.2422E-07 4.8998E-08
7 -0.6592 5.8640E-05 1.2611E-04 8.3465E-06 -9.7213E-07 3.6970E-10
8 -150.0000 1.4356E-03 4.5836E-04 -2.0429E-05 1.9197E-06 9.9586E-07
13 -5.2200 -1.9882E-03 1.1805E-04 3.0623E-05 -4.3412E-06 2.5980E-07
14 -0.1607 1.1039E-03 -9.5380E-05 3.5686E-05 -3.7931E-06 1.6879E-07
表33
D(mm) 19.6014 F3(mm) -7.7932
h(mm) 8.1460 F56(mm) -51.3516
FOV(°) 211 F7(mm) 5.4708
BFL(mm) 3.1793 d12(mm) 0.4652
TTL(mm) 26.5124 Nd1(mm) 1.77
F(mm) 2.2959    
F2(mm) -6.4357    
在本实施例中，光学镜头的最大视场角FOV、光学镜头的最大视场角所对应的第一透镜L1的物侧面S1的最大通光口径D以及光学镜头的最大视场角所对应的像高h之间满足D/h/FOV＝0.0114；光学镜头的光学后焦BFL与光学镜头的光学总长度TTL之间满足BFL/TTL＝0.1199；光学镜头的光学总长度TTL、光学镜头的最大视场角FOV以及光学镜头的最大视场角所对应的像高h之间满足TTL/h/FOV＝0.0154；光学镜头的最大视场角度FOV、光学镜头的整组焦距值F以及光学镜头最大视场角所对应的像高h之间满足(FOV×F)/h＝59.4691；第二透镜L2的焦距值F2与第三透镜L3的焦距值F3之间满足F3/F2＝1.2109；第五透镜L5和第六透镜L6的组合焦距值F56与光学镜头的整组焦距值F之间满足F56/F＝-22.3667；第七透镜L7的焦距值F7与光学镜头的整组焦距值F之间满足F7/F＝2.3829；以及第六透镜L6和第七透镜L7之间的空气间隔d12与光学镜头的光学总长度TTL之间满足d12/TTL＝0.0175。
综上，实施例1至实施例11分别满足以下表34所示的关系。
表34
条件式/实施例 1 2 3 4 5 6
(|r31|+d3)/|r32| 5.944 0.646 0.163 / / /
(∣r41∣+d4)/∣r42∣ / / / 0.533 0.645 0.525
D/h/FOV 0.014 0.013 0.012 0.014 0.015 0.014
BFL/TTL 0.195 0.187 0.146 0.170 0.166 0.147
TTL/h/FOV 0.019 0.018 0.015 0.019 0.017 0.017
条件式/实施例 7 8 9 10 11  
D/h/FOV 0.0124 0.0119 0.0119 0.0115 0.0114  
BFL/TTL 0.1695 0.1423 0.1421 0.1416 0.1199  
TTL/h/FOV 0.0157 0.0169 0.0168 0.0153 0.0154  
(FOV×F)/h 53.1623 61.7373 60.1309 59.2942 59.4691  
d2/TTL 0.1292 0.1242 0.1317 / /  
d12/TTL / / / 0.0163 0.0175  
F3/F2 / / / 1.2847 1.2109  
F56/F / / / -17.1957 -22.3667  
F7/F / / / 2.4612 2.3829  
本申请还提供了一种成像设备，该成像设备可包括根据本申请上述实施方式中的一些的光学镜头和用于将光学镜头形成的光学图像转换为电信号的成像元件。该成像元件可以是感光耦合元件(CCD)或互补性氧化金属半导体元件(CMOS)。该成像设备可以是诸如探测距离相机的独立成像设备，也可以是集成在诸如探测距离设备上的成像模块。
以上描述仅为本申请的较佳实施例以及对所运用技术原理的说明。本领域技术人员应当理解，本申请中所涉及的发明范围，并不限于上述技术特征的特定组合而成的技术方案，同时也应涵盖在不脱离所述发明构思的情况下，由上述技术特征或其等同特征进行任意组合而形成的其它技术方案。例如上述特征与本申请中公开的(但不限于)具有类似功能的技术特征进行互相替换而形成的技术方案。

Claims (115)

  1. 光学镜头，沿着光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜和第七透镜，其特征在于，
    所述第一透镜具有负光焦度，其物侧面为凸面，像侧面为凹面；
    所述第二透镜具有负光焦度，其物侧面为凸面，像侧面为凹面；
    所述第三透镜具有负光焦度，其物侧面和像侧面均为凹面；
    所述第四透镜具有正光焦度，其物侧面为凸面；以及
    所述第七透镜具有正光焦度，其物侧面和像侧面均为凸面，
    其中，所述第五透镜和所述第六透镜胶合组成胶合透镜。
  2. 根据权利要求1所述的光学镜头，其特征在于，所述第四透镜的像侧面为凸面。
  3. 根据权利要求1所述的光学镜头，其特征在于，所述第四透镜的像侧面为凹面。
  4. 根据权利要求1所述的光学镜头，其特征在于，所述第五透镜具有正光焦度，其物侧面和像侧面均为凸面。
  5. 根据权利要求1所述的光学镜头，其特征在于，所述第六透镜具有负光焦度，其物侧面和像侧面均为凹面。
  6. 根据权利要求1所述的光学镜头，其特征在于，所述第一透镜的材料的折射率大于等于1.65。
  7. 根据权利要求1-6中任一项所述的光学镜头，其特征在于，所述光学镜头中的至少三个透镜为非球面镜片。
  8. 根据权利要求7所述的光学镜头，其特征在于，所述第七透镜为非球面镜片。
  9. 根据权利要求1-6中任一项所述的光学镜头，其特征在于，所述光学镜头中的至少一个为玻璃镜片。
  10. 根据权利要求1-6中任一项所述的光学镜头，其特征在于，满足条件式：D/h/FOV≤0.025，
    其中，FOV为所述光学镜头的最大视场角；
    D为所述光学镜头的最大视场角所对应的所述第一透镜物侧面的最大通光口径；以及
    h为所述光学镜头的最大视场角所对应的像高。
  11. 根据权利要求1-6中任一项所述的光学镜头，其特征在于，满足条件式：TTL/h/FOV≤0.025，
    其中，TTL为所述第一透镜的物侧面的中心至所述光学镜头的成像面在所述光轴上的距离；
    h为所述光学镜头最大视场角所对应的像高；以及
    FOV为所述光学镜头的最大视场角。
  12. 根据权利要求1-6中任一项所述的光学镜头，其特征在于，满足条件式：BFL/TTL ≥0.1，
    其中，BFL为所述第七透镜的像侧面的中心至所述光学镜头的成像面在所述光轴上的距离；以及
    TTL为所述第一透镜的物侧面的中心至所述光学镜头的成像面在所述光轴上的距离。
  13. 根据权利要求1-6中任一项所述的光学镜头，其特征在于，所述第三透镜的物侧面的曲率半径r31、所述第三透镜的像侧面的曲率半径r32与所述第三透镜的中心厚度d3之间满足：(|r31|+d3)/|r32|≤12。
  14. 光学镜头，沿着光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜和第七透镜，其特征在于，
    所述第一透镜、所述第二透镜、所述第三透镜和所述第六透镜均具有负光焦度；
    所述第四透镜、所述第五透镜和所述第七透镜均具有正光焦度；以及
    所述第五透镜和所述第六透镜胶合组成胶合透镜，
    其中，所述第一透镜的物侧面的中心至所述光学镜头的成像面在所述光轴上的距离TTL、所述光学镜头最大视场角所对应的像高h与所述光学镜头的最大视场角FOV之间满足条件式：TTL/h/FOV≤0.025。
  15. 根据权利要求14所述的光学镜头，其特征在于，所述第一透镜的物侧面为凸面，像侧面为凹面。
  16. 根据权利要求14所述的光学镜头，其特征在于，所述第二透镜的物侧面为凸面，像侧面为凹面。
  17. 根据权利要求14所述的光学镜头，其特征在于，所述第三透镜的物侧面和像侧面均为凹面。
  18. 根据权利要求14所述的光学镜头，其特征在于，所述第四透镜的物侧面和像侧面均为凸面。
  19. 根据权利要求14所述的光学镜头，其特征在于，所述第四透镜的物侧面为凸面，像侧面为凹面。
  20. 根据权利要求14所述的光学镜头，其特征在于，所述第五透镜的物侧面和像侧面均为凸面。
  21. 根据权利要求14所述的光学镜头，其特征在于，所述第六透镜的物侧面和像侧面均为凹面。
  22. 根据权利要求14所述的光学镜头，其特征在于，所述第七透镜的物侧面和像侧面均为凸面。
  23. 根据权利要求14-22中任一项所述的光学镜头，其特征在于，所述第一透镜的材料的折射率大于等于1.65。
  24. 根据权利要求14-22中任一项所述的光学镜头，其特征在于，所述光学镜头中的至 少三个透镜为非球面镜片。
  25. 根据权利要求24所述的光学镜头，其特征在于，所述第七透镜为非球面镜片。
  26. 根据权利要求14-22中任一项所述的光学镜头，其特征在于，所述光学镜头中的至少一个为玻璃镜片。
  27. 根据权利要求14-22中任一项所述的光学镜头，其特征在于，满足条件式：D/h/FOV≤0.025，
    其中，FOV为所述光学镜头的最大视场角；
    D为所述光学镜头的最大视场角所对应的所述第一透镜物侧面的最大通光口径；以及
    h为所述光学镜头的最大视场角所对应的像高。
  28. 根据权利要求14-22中任一项所述的光学镜头，其特征在于，满足条件式：BFL/TTL≥0.1，
    其中，BFL为所述第七透镜的像侧面的中心至所述光学镜头的成像面在所述光轴上的距离；以及
    TTL为所述第一透镜的物侧面的中心至所述光学镜头的成像面在所述光轴上的距离。
  29. 根据权利要求14-22中任一项所述的光学镜头，其特征在于，所述第三透镜的物侧面的曲率半径r31、所述第三透镜的像侧面的曲率半径r32与所述第三透镜的中心厚度d3之间满足：(|r31|+d3)/|r32|≤12。
  30. 光学镜头，沿着光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜和第七透镜，其特征在于，
    所述第一透镜具有负光焦度，其物侧面为凸面，像侧面为凹面；
    所述第二透镜具有负光焦度，其物侧面为凸面，像侧面为凹面；
    所述第三透镜具有负光焦度，其物侧面为凹面，像侧面为凸面；
    所述第四透镜具有正光焦度，其物侧面为凸面，像侧面为凹面；
    所述第五透镜和所述第六透镜胶合在一起；以及
    所述第七透镜具有正光焦度，其物侧面和像侧面均为凸面。
  31. 根据权利要求30所述的光学镜头，其特征在于，
    所述第五透镜具有正光焦度，其物侧面和像侧面均为凸面；以及
    所述第六透镜具有负光焦度，其物侧面和像侧面均为凹面。
  32. 根据权利要求30所述的光学镜头，其特征在于，所述第二透镜、所述第三透镜和所述第七透镜为非球面镜片。
  33. 根据权利要求30所述的光学镜头，其特征在于，所述第一透镜、所述第二透镜、所述第三透镜、所述第四透镜、所述第五透镜、所述第六透镜和所述第七透镜中的至少四枚透镜为非球面镜片。
  34. 根据权利要求30-33中任一项所述的光学镜头，其特征在于，所述光学镜头的第四 透镜满足条件式：0.4≤(∣r41∣+d4)/∣r42∣≤0.8，
    其中，r41为所述光学镜头的第四透镜的物侧面的曲率半径；
    d4为所述光学镜头的第四透镜的中心厚度；以及
    r42为所述光学镜头的第四透镜的像侧面的曲率半径。
  35. 根据权利要求30-33中任一项所述的光学镜头，其特征在于，所述光学镜头满足条件式：D/h/FOV≤0.02，
    其中，D为所述光学镜头的最大视场角所对应的第一透镜的物侧面的最大通光口径；
    h为所述光学镜头的最大视场角所对应的像高；以及
    FOV为所述光学镜头的最大视场角。
  36. 根据权利要求30-33中任一项所述的光学镜头，其特征在于，所述光学镜头满足条件式：TTL/h/FOV≤0.025，
    其中，TTL为从所述光学镜头的第一透镜的物侧面的中心到所述光学镜头的成像面的距离；
    h为所述光学镜头的最大视场角所对应的像高；以及
    FOV为所述光学镜头的最大视场角。
  37. 根据权利要求30-33中任一项所述的光学镜头，其特征在于，所述光学镜头满足条件式：BFL/TTL≥0.1，
    其中，BFL为从所述光学镜头的第七透镜的像侧面的中心到所述光学镜头的成像面的距离；以及
    TTL为从所述光学镜头的第一透镜的物侧面的中心到所述光学镜头的成像面的距离。
  38. 根据权利要求30-33中任一项所述的光学镜头，其特征在于，所述光学镜头的第一透镜满足条件式：Nd1≥1.7，
    其中，Nd1为形成所述光学镜头的第一透镜的材料的折射率。
  39. 光学镜头，沿着光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜和第七透镜，其特征在于，
    所述第一透镜、所述第二透镜和所述第三透镜具有负光焦度；
    所述第四透镜和所述第七透镜具有正光焦度；以及
    所述光学镜头满足条件式：TTL/h/FOV≤0.025，其中，TTL为从所述光学镜头的第一透镜的物侧面的中心到所述光学镜头的成像面的距离，h为所述光学镜头的最大视场角所对应的像高，以及FOV为所述光学镜头的最大视场角。
  40. 根据权利要求39所述的光学镜头，其特征在于，所述第一透镜的物侧面为凸面，像侧面为凹面。
  41. 根据权利要求39所述的光学镜头，其特征在于，所述第二透镜的物侧面为凸面，像侧面为凹面。
  42. 根据权利要求39所述的光学镜头，其特征在于，所述第三透镜的物侧面为凹面，像侧面为凸面。
  43. 根据权利要求39所述的光学镜头，其特征在于，所述第四透镜的物侧面为凸面，像侧面为凹面。
  44. 根据权利要求39所述的光学镜头，其特征在于，所述第五透镜和所述第六透镜胶合在一起。
  45. 根据权利要求39所述的光学镜头，其特征在于，所述第七透镜的物侧面和像侧面均为凸面。
  46. 根据权利要求39所述的光学镜头，其特征在于，
    所述第五透镜具有正光焦度，其物侧面和像侧面均为凸面；以及
    所述第六透镜具有负光焦度，其物侧面和像侧面均为凹面。
  47. 根据权利要求39所述的光学镜头，其特征在于，所述第二透镜、所述第三透镜和所述第七透镜为非球面镜片。
  48. 根据权利要求39所述的光学镜头，其特征在于，所述第一透镜、所述第二透镜、所述第三透镜、所述第四透镜、所述第五透镜、所述第六透镜和所述第七透镜中的至少四枚透镜为非球面镜片。
  49. 根据权利要求39所述的光学镜头，其特征在于，所述光学镜头的第四透镜满足条件式：0.4≤(∣r41∣+d4)/∣r42∣≤0.8，
    其中，r41为所述光学镜头的第四透镜的物侧面的曲率半径；
    d4为所述光学镜头的第四透镜的中心厚度；以及
    r42为所述光学镜头的第四透镜的像侧面的曲率半径。
  50. 根据权利要求39所述的光学镜头，其特征在于，所述光学镜头满足条件式：D/h/FOV≤0.02，
    其中，D为所述光学镜头的最大视场角所对应的第一透镜的物侧面的最大通光口径；
    h为所述光学镜头的最大视场角所对应的像高；以及
    FOV为所述光学镜头的最大视场角。
  51. 根据权利要求39所述的光学镜头，其特征在于，所述光学镜头满足条件式：BFL/TTL≥0.1，
    其中，BFL为从所述光学镜头的第七透镜的像侧面的中心到所述光学镜头的成像面的距离；以及
    TTL为从所述光学镜头的第一透镜的物侧面的中心到所述光学镜头的成像面的距离。
  52. 根据权利要求39所述的光学镜头，其特征在于，所述光学镜头的第一透镜满足条件式：Nd1≥1.7，
    其中，Nd1为形成所述光学镜头的第一透镜的材料的折射率。
  53. 光学镜头，沿着光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜和第七透镜，其特征在于，
    所述第一透镜具有负光焦度，其物侧面为凸面，像侧面为凹面；
    所述第二透镜具有负光焦度，其像侧面为凹面；
    所述第三透镜具有负光焦度，其物侧面为凹面，像侧面为凸面；
    所述第四透镜具有正光焦度，其物侧面和像侧面均为凸面；
    所述第五透镜具有负光焦度，其物侧面为凸面，像侧面为凹面；
    所述第六透镜具有正光焦度，其物侧面和像侧面均为凸面；以及
    所述第七透镜具有正光焦度，其物侧面为凸面。
  54. 根据权利要求53所述的光学镜头，其特征在于，所述第五透镜和所述第六透镜互相胶合形成胶合透镜。
  55. 根据权利要求53所述的光学镜头，其特征在于，所述第二透镜的物侧面为凸面。
  56. 根据权利要求53所述的光学镜头，其特征在于，所述第二透镜的物侧面为凹面。
  57. 根据权利要求53所述的光学镜头，其特征在于，所述第七透镜的像侧面为凸面。
  58. 根据权利要求53所述的光学镜头，其特征在于，所述第七透镜的像侧面为凹面。
  59. 根据权利要求53所述的光学镜头，其特征在于，所述光学镜头具有至少4个非球面镜片。
  60. 根据权利要求59所述的光学镜头，其特征在于，所述第二透镜、所述第三透镜和所述第七透镜均为非球面镜片。
  61. 根据权利要求53-60中任一项所述的光学镜头，其特征在于，满足条件式：d2/TTL≤0.2，
    其中，d2为所述第一透镜与所述第二透镜之间的空气间隔；以及
    TTL为所述第一透镜的物侧面的中心至所述光学镜头的成像面在所述光轴上的距离。
  62. 根据权利要求53-60中任一项所述的光学镜头，其特征在于，所述光学镜头的最大视场角FOV、所述光学镜头的整组焦距值F与所述光学镜头的最大视场角所对应的像高h之间满足：(FOV×F)/h≥45。
  63. 根据权利要求53-60中任一项所述的光学镜头，其特征在于，所述第一透镜的材料的折射率大于等于1.65。
  64. 根据权利要求53-60中任一项所述的光学镜头，其特征在于，所述光学镜头的最大视场角FOV、所述光学镜头的最大视场角所对应的所述第一透镜的物侧面的最大通光口径D以及所述光学镜头最大视场角所对应的像高h之间满足：D/h/FOV≤0.02。
  65. 根据权利要求53-60中任一项所述的光学镜头，其特征在于，所述第一透镜的物侧面的中心至所述光学镜头的成像面在所述光轴上的距离TTL与所述第七透镜的像侧面中心至所述光学镜头的成像面在所述光轴上的距离BFL之间满足BFL/TTL≥0.1。
  66. 根据权利要求53-60中任一项所述的光学镜头，其特征在于，所述第一透镜的物侧 面的中心至所述光学镜头的成像面在所述光轴上的距离TTL、所述光学镜头的最大视场角FOV以及所述光学镜头的最大视场角所对应的像高h之间满足：TTL/h/FOV≤0.025。
  67. 光学镜头，沿着光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜和第七透镜，其特征在于，
    所述第一透镜、所述第二透镜、所述第三透镜和所述第五透镜均具有负光焦度；
    所述第四透镜、所述第六透镜和所述第七透镜均具有正光焦度；
    所述第五透镜与所述第六透镜胶合；以及
    所述光学镜头的最大视场角FOV、所述光学镜头的整组焦距值F与所述光学镜头的最大视场角所对应的像高h之间满足：(FOV×F)/h≥45。
  68. 根据权利要求67所述的光学镜头，其特征在于，所述第一透镜的物侧面为凸面，像侧面为凹面。
  69. 根据权利要求67所述的光学镜头，其特征在于，所述第二透镜的物侧面为凸面，像侧面为凹面。
  70. 根据权利要求67所述的光学镜头，其特征在于，所述第二透镜的物侧面和像侧面均为凹面。
  71. 根据权利要求67所述的光学镜头，其特征在于，所述第三透镜的物侧面为凹面，像侧面为凸面。
  72. 根据权利要求67所述的光学镜头，其特征在于，所述第四透镜的物侧面和像侧面均为凸面。
  73. 根据权利要求67所述的光学镜头，其特征在于，所述第五透镜的物侧面为凸面，像侧面为凹面。
  74. 根据权利要求67所述的光学镜头，其特征在于，所述第六透镜的物侧面和像侧面均为凸面。
  75. 根据权利要求67所述的光学镜头，其特征在于，所述第七透镜的物侧面和像侧面均为凸面。
  76. 根据权利要求67所述的光学镜头，其特征在于，所述第七透镜的物侧面为凸面，像侧面为凹面。
  77. 根据权利要求67-76中任一项所述的光学镜头，其特征在于，所述光学镜头具有至少4个非球面镜片。
  78. 根据权利要求77所述的光学镜头，其特征在于，所述第二透镜、所述第三透镜和所述第七透镜均为非球面镜片。
  79. 根据权利要求67-76中任一项所述的光学镜头，其特征在于，满足条件式：d2/TTL≤0.2，
    其中，d2为所述第一透镜与所述第二透镜之间的空气间隔；以及
    TTL为所述第一透镜的物侧面的中心至所述光学镜头的成像面在所述光轴上的距离。
  80. 根据权利要求67-76中任一项所述的光学镜头，其特征在于，所述第一透镜的材料的折射率大于等于1.65。
  81. 根据权利要求67-76中任一项所述的光学镜头，其特征在于，所述光学镜头的最大视场角FOV、所述光学镜头的最大视场角所对应的所述第一透镜的物侧面的最大通光口径D以及所述光学镜头最大视场角所对应的像高h之间满足：D/h/FOV≤0.02。
  82. 根据权利要求67-76中任一项所述的光学镜头，其特征在于，所述第一透镜的物侧面的中心至所述光学镜头的成像面在所述光轴上的距离TTL与所述第七透镜的像侧面中心至所述光学镜头的成像面在所述光轴上的距离BFL之间满足BFL/TTL≥0.1。
  83. 根据权利要求67-76中任一项所述的光学镜头，其特征在于，所述第一透镜的物侧面的中心至所述光学镜头的成像面在所述光轴上的距离TTL、所述光学镜头的最大视场角FOV以及所述光学镜头的最大视场角所对应的像高h之间满足：TTL/h/FOV≤0.025。
  84. 光学镜头，沿着光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜和第七透镜，其特征在于，
    所述第一透镜具有负光焦度，其物侧面为凸面，像侧面为凹面；
    所述第二透镜具有负光焦度，其物侧面为凸面，像侧面为凹面；
    所述第三透镜具有负光焦度，其物侧面为凹面，像侧面为凸面；
    所述第四透镜具有正光焦度，其物侧面和像侧面均为凸面；
    所述第五透镜具有正光焦度，其物侧面和像侧面均为凸面；
    所述第六透镜具有负光焦度，其物侧面和像侧面均为凹面；以及
    所述第七透镜具有正光焦度，其物侧面和像侧面均为凸面。
  85. 根据权利要求84所述的光学镜头，其特征在于，所述第五透镜与所述第六透镜互相胶合形成第一胶合透镜。
  86. 根据权利要求84所述的光学镜头，其特征在于，所述光学镜头具有至少三个非球面镜片。
  87. 根据权利要求86所述的光学镜头，其特征在于，所述第三透镜、所述第四透镜和所述第七透镜均为非球面镜片。
  88. 根据权利要求84-87中任一项所述的光学镜头，其特征在于，所述光学镜头的最大视场角FOV、所述光学镜头的最大视场角所对应的所述第一透镜的物侧面的最大通光口径D以及所述光学镜头的最大视场角所对应的像高h之间满足：D/h/FOV≤0.025。
  89. 根据权利要求84-87中任一项所述的光学镜头，其特征在于，所述光学镜头的最大视场角度FOV、所述光学镜头的整组焦距值F以及所述光学镜头的最大视场角所对应的像高h之间满足：(FOV×F)/h≥50。
  90. 根据权利要求84-87中任一项所述的光学镜头，其特征在于，所述第二透镜的焦距 值F2与所述第三透镜的焦距值F3之间满足：F3/F2≤1.6。
  91. 根据权利要求84-87中任一项所述的光学镜头，其特征在于，所述光学镜头的光学后焦BFL与所述光学镜头的光学总长度TTL之间满足：BFL/TTL≥0.05。
  92. 根据权利要求84-87中任一项所述的光学镜头，其特征在于，所述光学镜头的光学总长度TTL、所述光学镜头的最大视场角FOV以及所述光学镜头的最大视场角所对应的像高h之间满足：TTL/h/FOV≤0.025。
  93. 根据权利要求84-87中任一项所述的光学镜头，其特征在于，所述第一透镜的材料折射率Nd1满足：Nd1≥1.65。
  94. 根据权利要求84-87中任一项所述的光学镜头，其特征在于，所述第六透镜和所述第七透镜之间的空气间隔d12与所述光学镜头的光学总长度TTL之间满足：d12/TTL≤0.035。
  95. 根据权利要求84-87中任一项所述的光学镜头，其特征在于，所述第七透镜的焦距值F7与所述光学镜头的整组焦距值F之间满足：F7/F≤3。
  96. 根据权利要求84-87中任一项所述的光学镜头，其特征在于，所述第五透镜和所述第六透镜的组合焦距值F56与所述光学镜头的整组焦距值F之间满足：F56/F≤-10。
  97. 光学镜头，沿着光轴由物侧至像侧依序包括：第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜和第七透镜，其特征在于，
    所述第一透镜、所述第二透镜、所述第三透镜和所述第六透镜均具有负光焦度；
    所述第四透镜、所述第五透镜和所述第七透镜均具有正光焦度；
    所述第五透镜和所述第六透镜互相胶合形成胶合透镜；以及
    所述光学镜头的最大视场角度FOV、所述光学镜头的整组焦距值F以及所述光学镜头的最大视场角所对应的像高h之间满足：(FOV×F)/h≥50。
  98. 根据权利要求97所述的光学镜头，其特征在于，所述第一透镜的物侧面为凸面，像侧面为凹面。
  99. 根据权利要求97所述的光学镜头，其特征在于，所述第二透镜的物侧面为凸面，像侧面为凹面。
  100. 根据权利要求97所述的光学镜头，其特征在于，所述第三透镜的物侧面为凹面，像侧面为凸面。
  101. 根据权利要求97所述的光学镜头，其特征在于，所述第四透镜的物侧面和像侧面均为凸面。
  102. 根据权利要求97所述的光学镜头，其特征在于，所述第五透镜的物侧面和像侧面均为凸面。
  103. 根据权利要求97所述的光学镜头，其特征在于，所述第六透镜的物侧面和像侧面均为凹面。
  104. 根据权利要求97所述的光学镜头，其特征在于，所述第七透镜的物侧面和像侧面均为凸面。
  105. 根据权利要求97-104中任一项所述的光学镜头，其特征在于，所述光学镜头具有至少三个非球面镜片。
  106. 根据权利要求105所述的光学镜头，其特征在于，所述第三透镜、所述第四透镜和所述第七透镜均为非球面镜片。
  107. 根据权利要求97-104中任一项所述的光学镜头，其特征在于，所述光学镜头的最大视场角FOV、所述光学镜头的最大视场角所对应的所述第一透镜的物侧面的最大通光口径D以及所述光学镜头的最大视场角所对应的像高h之间满足：D/h/FOV≤0.025。
  108. 根据权利要求97-104中任一项所述的光学镜头，其特征在于，所述第二透镜的焦距值F2与所述第三透镜的焦距值F3之间满足：F3/F2≤1.6。
  109. 根据权利要求97-104中任一项所述的光学镜头，其特征在于，所述光学镜头的光学后焦BFL与所述光学镜头的光学总长度TTL之间满足：BFL/TTL≥0.05。
  110. 根据权利要求97-104中任一项所述的光学镜头，其特征在于，所述光学镜头的光学总长度TTL、所述光学镜头的最大视场角FOV以及所述光学镜头的最大视场角所对应的像高h之间满足：TTL/h/FOV≤0.025。
  111. 根据权利要求97-104中任一项所述的光学镜头，其特征在于，所述第一透镜的材料折射率Nd1满足：Nd1≥1.65。
  112. 根据权利要求97-104中任一项所述的光学镜头，其特征在于，所述第六透镜和所述第七透镜之间的空气间隔d12与所述光学镜头的光学总长度TTL之间满足：d12/TTL≤0.035。
  113. 根据权利要求97-104中任一项所述的光学镜头，其特征在于，所述第七透镜的焦距值F7与所述光学镜头的整组焦距值F之间满足：F7/F≤3。
  114. 根据权利要求97-104中任一项所述的光学镜头，其特征在于，所述第五透镜和所述第六透镜的组合焦距值F56与所述光学镜头的整组焦距值F之间满足：F56/F≤-10。
  115. 一种成像设备，其特征在于，包括权利要求84或97所述的光学镜头及用于将所述光学镜头形成的光学图像转换为电信号的成像元件。
PCT/CN2019/082155 2018-04-28 2019-04-11 光学镜头及成像设备 WO2019205944A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US16/730,349 US20200142158A1 (en) 2018-04-28 2019-12-30 Optical lens assembly and imaging device
US18/306,290 US20230258908A1 (en) 2018-04-28 2023-04-25 Optical lens assembly and imaging device

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
CN201810403955.XA CN110412727B (zh) 2018-04-28 2018-04-28 光学镜头
CN201810397674.8 2018-04-28
CN201810397674.8A CN110412718B (zh) 2018-04-28 2018-04-28 光学镜头
CN201810403955.X 2018-04-28
CN201810840869.5 2018-07-27
CN201810840869.5A CN110764223B (zh) 2018-07-27 2018-07-27 光学镜头
CN201811588530.7 2018-12-25
CN201811588530.7A CN111367058B (zh) 2018-12-25 2018-12-25 光学镜头及成像设备

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US16/730,349 Continuation US20200142158A1 (en) 2018-04-28 2019-12-30 Optical lens assembly and imaging device

Publications (1)

Publication Number Publication Date
WO2019205944A1 true WO2019205944A1 (zh) 2019-10-31

Family

ID=68293718

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/082155 WO2019205944A1 (zh) 2018-04-28 2019-04-11 光学镜头及成像设备

Country Status (2)

Country Link
US (2) US20200142158A1 (zh)
WO (1) WO2019205944A1 (zh)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200007219A (ko) 2018-07-12 2020-01-22 삼성전기주식회사 촬상 광학계
CN113472977B (zh) 2018-10-16 2024-05-14 华为技术有限公司 微距成像的方法及终端
CN111708158B (zh) * 2020-08-20 2020-11-17 江西联创电子有限公司 广角镜头及成像设备
CN111897106A (zh) * 2020-08-28 2020-11-06 东莞市宇瞳光学科技股份有限公司 一种广角镜头
CN112305722B (zh) * 2020-10-26 2022-09-02 南京信息职业技术学院 一种用于高温燃烧炉的大视场超长镜筒监控镜头
CN114442267B (zh) * 2020-11-06 2024-01-19 亚洲光学股份有限公司 成像镜头
CN112596210B (zh) * 2020-12-23 2022-05-27 江西晶超光学有限公司 光学系统、摄像模组及电子设备
CN113325548B (zh) * 2021-05-17 2024-04-12 浙江大华技术股份有限公司 一种镜头
TWI792749B (zh) * 2021-12-08 2023-02-11 紘立光電股份有限公司 光學取像透鏡組、成像裝置及電子裝置
CN115097597B (zh) * 2022-06-09 2024-03-12 江西特莱斯光学有限公司 一种玻塑混合热漂移稳定鱼眼镜头
TWI829508B (zh) * 2023-01-17 2024-01-11 紘立光電股份有限公司 光學攝像透鏡組、成像裝置及電子裝置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102388331A (zh) * 2009-04-24 2012-03-21 株式会社理光 广角透镜和成像装置
CN104793316A (zh) * 2014-01-21 2015-07-22 三星泰科威株式会社 广角镜头系统
CN106324797A (zh) * 2015-06-29 2017-01-11 佳能企业股份有限公司 光学镜头
CN106990509A (zh) * 2017-05-27 2017-07-28 深圳市东正光学技术有限公司 全景鱼眼镜头
CN207074298U (zh) * 2016-12-05 2018-03-06 三星电机株式会社 光学成像系统

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180015485A (ko) * 2016-08-03 2018-02-13 삼성전자주식회사 옵티칼 렌즈 어셈블리 및 이를 포함한 전자 장치
TWI650592B (zh) * 2018-04-18 2019-02-11 大立光電股份有限公司 攝像光學鏡組、取像裝置及電子裝置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102388331A (zh) * 2009-04-24 2012-03-21 株式会社理光 广角透镜和成像装置
CN104793316A (zh) * 2014-01-21 2015-07-22 三星泰科威株式会社 广角镜头系统
CN106324797A (zh) * 2015-06-29 2017-01-11 佳能企业股份有限公司 光学镜头
CN207074298U (zh) * 2016-12-05 2018-03-06 三星电机株式会社 光学成像系统
CN106990509A (zh) * 2017-05-27 2017-07-28 深圳市东正光学技术有限公司 全景鱼眼镜头

Also Published As

Publication number Publication date
US20230258908A1 (en) 2023-08-17
US20200142158A1 (en) 2020-05-07

Similar Documents

Publication Publication Date Title
WO2019205944A1 (zh) 光学镜头及成像设备
WO2020024599A1 (zh) 光学镜头
CN110412727B (zh) 光学镜头
CN110858028B (zh) 光学镜头
CN112180538B (zh) 光学镜头及成像设备
CN112147754B (zh) 光学镜头及电子设备
WO2020248877A1 (zh) 光学镜头及成像设备
CN111367058B (zh) 光学镜头及成像设备
CN111474673B (zh) 光学镜头及成像设备
WO2020107759A1 (zh) 光学镜头及成像设备
WO2019205875A1 (zh) 光学镜头
WO2022028625A1 (zh) 光学镜头及电子设备
CN111781701B (zh) 光学镜头及成像设备
CN111830672B (zh) 光学镜头及成像设备
CN112859289B (zh) 光学镜头及电子设备
CN114509859A (zh) 光学镜头及电子设备
CN109683291B (zh) 光学镜头及成像设备
CN111999863B (zh) 光学镜头及成像设备
WO2019205874A1 (zh) 光学镜头
CN111352214B (zh) 光学镜头及成像设备
CN112444938A (zh) 光学镜头及电子设备
CN111239962A (zh) 光学镜头及成像设备
CN111103672A (zh) 光学镜头
CN112014945B (zh) 光学镜头及成像设备
WO2022089603A1 (zh) 光学镜头及电子设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19791952

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19791952

Country of ref document: EP

Kind code of ref document: A1