WO2020200309A1 - 光学镜头及成像设备 - Google Patents

光学镜头及成像设备 Download PDF

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Publication number
WO2020200309A1
WO2020200309A1 PCT/CN2020/083224 CN2020083224W WO2020200309A1 WO 2020200309 A1 WO2020200309 A1 WO 2020200309A1 CN 2020083224 W CN2020083224 W CN 2020083224W WO 2020200309 A1 WO2020200309 A1 WO 2020200309A1
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WO
WIPO (PCT)
Prior art keywords
lens
optical
optical lens
object side
image side
Prior art date
Application number
PCT/CN2020/083224
Other languages
English (en)
French (fr)
Inventor
王东方
姚波
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 CN201910271134.XA external-priority patent/CN111781701B/zh
Priority claimed from CN201910822855.5A external-priority patent/CN112444941B/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 WO2020200309A1 publication Critical patent/WO2020200309A1/zh
Priority to US17/493,175 priority Critical patent/US20220026686A1/en

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    • 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 -
    • G02B9/60—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having five components only
    • 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
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/62—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having six components only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof

Definitions

  • the present application relates to an optical lens and an imaging device including the optical lens. More specifically, the present application relates to an optical lens and an imaging device including five or six lenses.
  • the requirements for certain aspects of optical parameters of optical lenses for vehicle-mounted applications are generally more stringent, especially for the resolution performance of optical lenses.
  • the chip size is also increasing, so the resolution capability of the automotive lens used with it needs to be improved.
  • the peripheral brightness requirements of the lens are also higher.
  • the present application provides an optical lens that is suitable for vehicle installation and can at least overcome or partially overcome at least one of the above-mentioned defects in the prior art.
  • an optical lens which may include a first lens, a second lens, a third lens, a fourth lens, and a fifth lens in order from the object side to the image side along the optical axis .
  • the first lens may have positive refractive power or negative refractive power, and its object side surface is convex, and the image side surface is concave;
  • the second lens may have positive refractive power, and its object side and image side surfaces are both convex;
  • the third lens may With positive refractive power, the object side and image side are both convex;
  • the fourth lens may have negative refractive power, and both the object and image side surfaces are concave;
  • the fifth lens may have positive refractive power, and the object side is convex , The image side is concave.
  • the first lens may be an aspheric lens.
  • the second lens may be an aspheric lens.
  • the third lens and the fourth lens may be cemented with each other to form a cemented lens.
  • the optical lens may further include an additional lens, and the additional lens may have a negative refractive power, and the object side surface is convex and the image side surface is concave.
  • the additional lens may be provided between the first lens and the second lens.
  • the total optical length TTL of the optical lens and the focal length value F of the entire group of the optical lens may satisfy the following: TTL/F ⁇ 3.
  • the relationship between the optical back focus BFL of the optical lens and the lens group length TL of the optical lens may satisfy: BFL/TL ⁇ 0.1.
  • the center distance T23 between the second lens and the third lens on the optical axis and the total optical length TTL of the optical lens may satisfy: T23/TTL ⁇ 0.01.
  • the distance between the centers of the fourth lens and the fifth lens on the optical axis T45 and the total optical length TTL of the optical lens may satisfy: T45/TTL ⁇ 0.1.
  • the maximum field angle FOV of the optical lens, the maximum clear aperture D of the object side of the first lens corresponding to the maximum field angle of the optical lens, and the image height corresponding to the maximum field angle of the optical lens H can be satisfied: D/H/FOV ⁇ 0.06.
  • the focal length value F5 of the fifth lens and the entire group focal length value F of the optical lens may satisfy: F5/F ⁇ 4.
  • the central curvature radius r1 of the object side surface of the first lens, the central curvature radius r2 of the image side surface of the first lens, and the central thickness d1 of the first lens can satisfy: 0.5 ⁇
  • the radius of curvature r2 of the image side surface of the first lens and the radius of curvature r3 of the object side surface of the additional lens may satisfy: -0.15 ⁇ (r2-r3)/(r2+r3) ⁇ 1.
  • the center distance T1x between the first lens and the additional lens on the optical axis and the center distance T12 between the first lens and the second lens on the optical axis may satisfy: 0.01 ⁇ T1x/T12 ⁇ 0.15.
  • an optical lens which may include a first lens, a second lens, a third lens, a fourth lens, and a fifth lens in order from the object side to the image side along the optical axis.
  • the first lens may have positive refractive power or negative refractive power
  • the second lens, the third lens and the fifth lens may all have positive refractive power
  • the fourth lens may have negative refractive power
  • the third lens and the fourth lens may have negative refractive power.
  • the lenses can be cemented with each other to form a cemented lens; and the total optical length TTL of the optical lens and the entire focal length value F of the optical lens can satisfy: TTL/F ⁇ 3.
  • the object side surface of the first lens may be a convex surface
  • the image side surface may be a concave surface
  • both the object side surface and the image side surface of the second lens can be convex.
  • both the object side surface and the image side surface of the third lens can be convex.
  • both the object side surface and the image side surface of the fourth lens can be concave.
  • the object side surface of the fifth lens may be a convex surface, and the image side surface may be a concave surface.
  • the optical lens may further include an additional lens, and the additional lens may have a negative refractive power, and the object side surface is convex and the image side surface is concave.
  • the additional lens may be provided between the first lens and the second lens.
  • the first lens may be an aspheric lens.
  • the second lens may be an aspheric lens.
  • the relationship between the optical back focus BFL of the optical lens and the lens group length TL of the optical lens may satisfy: BFL/TL ⁇ 0.1.
  • the center distance T23 between the second lens and the third lens on the optical axis and the total optical length TTL of the optical lens may satisfy: T23/TTL ⁇ 0.01.
  • the distance between the centers of the fourth lens and the fifth lens on the optical axis T45 and the total optical length TTL of the optical lens may satisfy: T45/TTL ⁇ 0.1.
  • the maximum field angle FOV of the optical lens, the maximum clear aperture D of the object side of the first lens corresponding to the maximum field angle of the optical lens, and the image height corresponding to the maximum field angle of the optical lens H can be satisfied: D/H/FOV ⁇ 0.06.
  • the focal length value F5 of the fifth lens and the entire group focal length value F of the optical lens may satisfy: F5/F ⁇ 4.
  • the central curvature radius r1 of the object side surface of the first lens, the central curvature radius r2 of the image side surface of the first lens, and the central thickness d1 of the first lens can satisfy: 0.5 ⁇
  • the radius of curvature r2 of the image side surface of the first lens and the radius of curvature r3 of the object side surface of the additional lens may satisfy: -0.15 ⁇ (r2-r3)/(r2+r3) ⁇ 1.
  • the center distance T1x between the first lens and the additional lens on the optical axis and the center distance T12 between the first lens and the second lens on the optical axis may satisfy: 0.01 ⁇ T1x/T12 ⁇ 0.15.
  • an imaging device which may include the optical lens according to the above-mentioned embodiment and an imaging element for converting an optical image formed by the optical lens into an electrical signal.
  • an optical lens which includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens in order from the object side to the image side along the optical axis ,
  • the first lens has negative refractive power;
  • the second lens has positive refractive power, its object side surface is convex, and its image side surface is convex;
  • the third lens has positive refractive power, and its object side surface is convex,
  • the image side surface is convex;
  • the fourth lens has negative refractive power, the object side surface is concave, and the image side surface is concave; and the fifth lens has refractive power.
  • the object side surface of the first lens is convex, and the image side surface is concave.
  • the object side surface of the first lens is concave, and the image side surface is convex.
  • the object side surface of the fifth lens is convex, and the image side surface is concave.
  • the object side surface of the fifth lens is concave, and the image side surface is convex.
  • the third lens and the fourth lens are cemented to form a cemented lens.
  • a diaphragm is provided between the first lens and the second lens.
  • At least one of the first lens, the second lens, and the fifth lens is an aspheric lens.
  • each lens in the optical lens is made of glass material.
  • the total length TTL of the optical lens and the total effective focal length F of the optical lens satisfy: TTL/F ⁇ 2.2.
  • the distance SL from the object side surface of the second lens to the imaging surface of the optical lens and the total length TTL of the optical lens satisfy: 0.66 ⁇ SL/TTL ⁇ 1.24.
  • the central thickness CT2 of the second lens on the optical axis and the distance T12 from the image side surface of the first lens to the object side surface of the second lens on the optical axis satisfy: CT2/T12 ⁇ 1.26.
  • the effective focal length F2 of the second lens and the total effective focal length F of the optical lens satisfy: 0.5 ⁇ F2/F ⁇ 1.5.
  • the effective focal length F4 of the fourth lens and the effective focal length F3 of the third lens satisfy:
  • the total effective focal length F of the optical lens and the combined focal length F34 of the third lens and the fourth lens satisfy:
  • the sum of the central thickness ⁇ CT of all lenses in the optical lens on the optical axis and the total length TTL of the optical lens satisfy: ⁇ CT/TTL ⁇ 0.67.
  • the effective focal length F3 of the third lens and the total effective focal length F of the optical lens satisfy: 0.1 ⁇ F3/F ⁇ 1.3.
  • the total length TTL of the optical lens, the image height H corresponding to the maximum field angle of the optical lens, and the maximum field angle FOV of the optical lens satisfy: TTL/H/FOV ⁇ 0.30.
  • the maximum field of view FOV of the optical lens, the total effective focal length F of the optical lens, and the image height H corresponding to the maximum field of view of the optical lens satisfy: (FOV ⁇ F)/H ⁇ 65.
  • the distance T23 from the image side surface of the second lens to the object side surface of the third lens on the optical axis and the total length TTL of the optical lens satisfy: T23/TTL ⁇ 0.03.
  • the image height H corresponding to the total effective focal length F of the optical lens and the maximum field angle of the optical lens satisfies: F/H ⁇ 1.5.
  • the distance DSR3 from the diaphragm to the second lens and the distance T12 from the image side surface of the first lens to the object side surface of the second lens on the optical axis satisfy: DSR3/ T12 ⁇ 0.42.
  • the distance BFL from the image side surface of the fifth lens to the imaging surface of the optical lens and the distance TL from the object side surface of the first lens to the image side surface of the fifth lens satisfy: BFL/ TL ⁇ 0.10.
  • the refractive index Nd2 of the second lens satisfies: 1.5 ⁇ Nd2.
  • the refractive index Nd3 of the third lens and the refractive index Nd4 of the fourth lens satisfy: Nd3/Nd4 ⁇ 1.5.
  • the Abbe number Vd4 of the fourth lens and the Abbe number Vd3 of the third lens satisfy: Vd4/Vd3 ⁇ 1.1.
  • an optical lens which includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens in order from the object side to the image side along the optical axis ,
  • the first lens has negative refractive power;
  • the second lens has positive refractive power;
  • the third lens has positive refractive power;
  • the fourth lens has negative refractive power;
  • the fifth lens has Optical power, wherein: the total length TTL of the optical lens and the total effective focal length F of the optical lens satisfy: TTL/F ⁇ 2.2.
  • the object side surface of the first lens is convex, and the image side surface is concave.
  • the object side surface of the first lens is concave, and the image side surface is convex.
  • the object side surface of the second lens is convex, and the image side surface is convex.
  • the object side surface of the third lens is convex, and the image side surface is convex.
  • the object side surface of the fourth lens is concave, and the image side surface is concave.
  • the object side surface of the fifth lens is convex, and the image side surface is concave.
  • the object side surface of the fifth lens is concave, and the image side surface is convex.
  • the third lens and the fourth lens are cemented to form a cemented lens.
  • a diaphragm is provided between the first lens and the second lens.
  • At least one of the first lens, the second lens, and the fifth lens is an aspheric lens.
  • each lens in the optical lens is made of glass material.
  • the distance SL from the object side surface of the second lens to the imaging surface of the optical lens and the total length TTL of the optical lens satisfy: 0.66 ⁇ SL/TTL ⁇ 1.24.
  • the central thickness CT2 of the second lens on the optical axis and the distance T12 from the image side surface of the first lens to the object side surface of the second lens on the optical axis satisfy: CT2/T12 ⁇ 1.26.
  • the effective focal length F2 of the second lens and the total effective focal length F of the optical lens satisfy: 0.5 ⁇ F2/F ⁇ 1.5.
  • the effective focal length F4 of the fourth lens and the effective focal length F3 of the third lens satisfy:
  • the total effective focal length F of the optical lens and the combined focal length F34 of the third lens and the fourth lens satisfy:
  • the sum of the central thickness ⁇ CT of all lenses in the optical lens on the optical axis and the total length TTL of the optical lens satisfy: ⁇ CT/TTL ⁇ 0.67.
  • the effective focal length F3 of the third lens and the total effective focal length F of the optical lens satisfy: 0.1 ⁇ F3/F ⁇ 1.3.
  • the total length TTL of the optical lens, the image height H corresponding to the maximum field angle of the optical lens, and the maximum field angle FOV of the optical lens satisfy: TTL/H/FOV ⁇ 0.30.
  • the maximum field of view FOV of the optical lens, the total effective focal length F of the optical lens, and the image height H corresponding to the maximum field of view of the optical lens satisfy: (FOV ⁇ F)/H ⁇ 65.
  • the distance T23 from the image side surface of the second lens to the object side surface of the third lens on the optical axis and the total length TTL of the optical lens satisfy: T23/TTL ⁇ 0.03.
  • the image height H corresponding to the total effective focal length F of the optical lens and the maximum field angle of the optical lens satisfies: F/H ⁇ 1.5.
  • the distance DSR3 from the diaphragm to the second lens and the distance T12 from the image side surface of the first lens to the object side surface of the second lens on the optical axis satisfy: DSR3/ T12 ⁇ 0.42.
  • the distance BFL from the image side surface of the fifth lens to the imaging surface of the optical lens and the distance TL from the object side surface of the first lens to the image side surface of the fifth lens satisfy: BFL/ TL ⁇ 0.10.
  • the refractive index Nd2 of the second lens satisfies: 1.5 ⁇ Nd2.
  • the refractive index Nd3 of the third lens and the refractive index Nd4 of the fourth lens satisfy: Nd3/Nd4 ⁇ 1.5.
  • the Abbe number Vd4 of the fourth lens and the Abbe number Vd3 of the third lens satisfy: Vd4/Vd3 ⁇ 1.1.
  • Another aspect of the present application provides an electronic device, which may include the optical lens according to the above embodiment.
  • an optical lens which includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens in order from the object side to the image side along the optical axis ,
  • the first lens has negative refractive power, the object side is concave, and the image side is convex;
  • the second lens has positive refractive power;
  • the third lens has refractive power;
  • the fourth lens has refractive power; and the fifth lens has Optical power.
  • the third lens and the fourth lens are cemented to form a cemented lens.
  • the object side surface of the second lens is convex, and the image side surface is convex.
  • the object side surface of the second lens is concave, and the image side surface is convex.
  • the object side surface of the third lens is convex, and the image side surface is convex.
  • the object side surface of the third lens is concave, and the image side surface is concave.
  • the object side surface of the fourth lens is convex, and the image side surface is convex.
  • the object side surface of the fourth lens is concave, and the image side surface is concave.
  • the object side surface of the fifth lens is convex, and the image side surface is concave.
  • the object side surface of the fifth lens is concave, and the image side surface is convex.
  • the object side surface of the fifth lens is concave, and the image side surface is concave.
  • both the first lens and the fifth lens are aspheric lenses.
  • the combined focal length F34 of the third lens and the fourth lens and the total effective focal length F of the optical lens satisfy: 0.2 ⁇
  • the distance TTL from the object side of the first lens to the imaging surface of the optical lens on the optical axis and the total effective focal length F of the optical lens satisfy: TTL/F ⁇ 3.
  • the distance BFL from the image side surface of the fifth lens to the imaging surface of the optical lens on the optical axis and the distance from the object side surface of the first lens to the imaging surface of the optical lens on the optical axis TTL satisfy: BFL/TTL ⁇ 0.10.
  • the maximum field of view FOV of the optical lens, the maximum clear aperture D of the object side of the first lens corresponding to the maximum field of view FOV, and the image height H corresponding to the maximum field of view FOV satisfy: D /H/FOV ⁇ 0.08.
  • the effective focal length F3 of the third lens and the effective focal length F4 of the fourth lens satisfy: 0.6 ⁇
  • the effective focal length F1 of the first lens and the total effective focal length F of the optical lens satisfy: 4 ⁇
  • the ratio of the center thickness of any two lenses on the optical axis of the first lens to the fifth lens is not greater than 3.5.
  • the effective focal length F1 of the first lens and the effective focal length F2 of the second lens satisfy: 4 ⁇
  • the curvature radius R4 of the object side surface of the second lens and the curvature radius R5 of the image side surface of the second lens satisfy:
  • the curvature radius R1 of the object side surface of the first lens and the curvature radius R2 of the image side surface of the first lens satisfy: 0.5 ⁇
  • the distance T12 between the first lens and the second lens on the optical axis and the distance from the object side of the first lens to the imaging surface of the optical lens on the optical axis TTL satisfies: 0.02 ⁇ T12/TTL ⁇ 0.33 .
  • the distance T45 between the fourth lens and the fifth lens on the optical axis and the distance between the object side of the first lens and the imaging surface of the optical lens on the optical axis TTL satisfies: 0.10 ⁇ T45/TTL ⁇ 0.60 .
  • an optical lens which includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens in order from the object side to the image side along the optical axis, and is characterized in :
  • the first lens has negative refractive power;
  • the second lens has positive refractive power;
  • the third lens has refractive power;
  • the fourth lens has refractive power;
  • the fifth lens has refractive power, wherein: the object of the first lens
  • the distance from the side to the imaging surface of the optical lens on the optical axis TTL and the total effective focal length F of the optical lens satisfy: TTL/F ⁇ 3.
  • an electronic device which may include the optical lens according to the above embodiment and an imaging element for converting an optical image formed by the optical lens into an electrical signal.
  • This application uses five lenses.
  • the optical lens has high resolution, miniaturization, low cost, small CRA (Chief Ray Angle), and temperature adaptation. At least one beneficial effect such as good performance.
  • FIG. 1 is a schematic diagram showing the structure of an optical lens according to Embodiment 1 of the present application.
  • FIG. 2 is a schematic diagram showing the structure of an optical lens according to Embodiment 2 of the present application.
  • FIG. 3 is a schematic diagram showing the structure of an optical lens according to Embodiment 3 of the present application.
  • FIG. 4 is a schematic diagram showing the structure of an optical lens according to Embodiment 4 of the present application.
  • FIG. 5 is a schematic diagram showing the structure of an optical lens according to Embodiment 5 of the present application.
  • FIG. 6 is a schematic diagram showing the structure of an optical lens according to Embodiment 6 of the present application.
  • FIG. 7 is a schematic diagram showing the structure of an optical lens according to Embodiment 7 of the present application.
  • FIG. 8 is a schematic diagram showing the structure of an optical lens according to Embodiment 8 of the present application.
  • FIG. 9 is a schematic diagram showing the structure of an optical lens according to Embodiment 9 of the present application.
  • FIG. 10 is a schematic diagram showing the structure of an optical lens according to Embodiment 10 of the present application.
  • FIG. 11 is a schematic diagram showing the structure of an optical lens according to Embodiment 11 of the present application.
  • FIG. 12 is a schematic diagram showing the structure of an optical lens according to Embodiment 12 of the present application.
  • FIG. 13 is a schematic diagram showing the structure of an optical lens according to Embodiment 13 of the present application.
  • FIG. 14 is a schematic diagram showing the structure of an optical lens according to Embodiment 14 of the present application.
  • Embodiment 15 is a schematic diagram showing the structure of an optical lens according to Embodiment 15 of the present application.
  • FIG. 16 is a schematic diagram showing the structure of an optical lens according to Embodiment 16 of the present application.
  • first, second, third, etc. are only used to distinguish one feature from another feature, and do not represent any restriction on the feature. Therefore, without departing from the teachings of the present application, the first lens discussed below may also be referred to as a second lens or a third lens.
  • the thickness, size, and shape of the lens have been slightly exaggerated for ease of description.
  • the shape of the spherical or aspherical surface shown in the drawings is shown by way of example. That is, the shape of the spherical surface or the aspheric surface is not limited to the shape of the spherical surface or the aspheric surface shown in the drawings.
  • the drawings are only examples and are not drawn strictly to scale.
  • the paraxial area refers to the area near the optical axis. If the lens surface is convex and the position of the convex surface is not defined, it means that the lens surface is convex at least in the paraxial region; if the lens surface is concave and the position of the concave surface is not defined, it means that the lens surface is at least in the paraxial region. Concave. The surface of each lens closest to the object is called the object side, and the surface of each lens closest to the imaging surface is called the image side.
  • the optical lens according to the exemplary embodiment of the present application may include, for example, five lenses having refractive power, namely, a first lens, a second lens, a third lens, a fourth lens, and a fifth lens.
  • the five lenses are arranged in order from the object side to the image side along the optical axis.
  • the optical lens according to the exemplary embodiment of the present application may further include a photosensitive element provided on the imaging surface.
  • the photosensitive element provided on the imaging surface may be a photosensitive coupling element (CCD) or a complementary metal oxide semiconductor element (CMOS).
  • CCD photosensitive coupling element
  • CMOS complementary metal oxide semiconductor element
  • the first lens may have a positive refractive power or a negative refractive power
  • the object side surface may be a convex surface
  • the image side surface may be a concave surface.
  • the first lens can be arranged in a meniscus shape with a convex surface facing the object side, and is arranged in a special shape of the first lens to facilitate collection of light and improve imaging quality.
  • the meniscus shape with the convex surface facing the object side is conducive to the sliding of water droplets and reduces the impact on imaging.
  • the second lens can have a positive refractive power, and both the object side and the image side can be convex.
  • the second lens is set as a positive lens, and an aspheric lens is selected to correct the chromatic aberration of the first lens and improve the resolution ability.
  • the light collected by the first lens is concentrated and transmitted to the rear lens.
  • the third lens can have a positive refractive power, and both the object side and the image side can be convex.
  • the fourth lens can have negative refractive power, and both the object side and the image side can be concave.
  • the fifth lens may have positive refractive power, the object side surface may be convex, and the image side surface may be concave.
  • the fifth lens can further converge the light collected by the third lens, adjust the light, and make the light trend smoothly transition to the imaging surface.
  • a diaphragm for restricting the light beam may be provided between, for example, the first lens and the second lens.
  • the diaphragm When the diaphragm is arranged between the first lens and the second lens, it can effectively shrink the incident light and increase the brightness ratio between the periphery and the center.
  • the position of the diaphragm disclosed here is only an example and not a limitation; in an alternative embodiment, the diaphragm may also be set in other positions according to actual needs.
  • the optical lens may further include an additional lens, the additional lens may have a negative refractive power, the object side surface may be a convex surface, and the image side surface may be a concave surface.
  • the additional lens may be disposed between the first lens and the second lens.
  • the optical lens according to the present application may further include a filter disposed between the fifth lens and the imaging surface to filter light having different wavelengths; and may also include The protective glass between the filter and the imaging surface to prevent the internal components (for example, chips) of the optical lens from being damaged.
  • cemented lenses can be used to minimize or eliminate chromatic aberration.
  • the use of cemented lenses in optical lenses can improve image quality and reduce the reflection loss of light energy, thereby enhancing the clarity of lens imaging.
  • the use of cemented lenses can also simplify the assembly procedures in the lens manufacturing process.
  • the third lens and the fourth lens can be combined into a cemented lens by cementing the image side surface of the third lens and the object side surface of the fourth lens, so as to improve the resolution, correct aberrations, Shorten the total optical length TTL.
  • the third lens arranged in the front has positive refractive power
  • the fourth lens arranged in the rear has negative refractive power. This arrangement can further smooth the light passing through the first lens/second lens Transition to the imaging surface to reduce the total length of the system.
  • the double cemented lens group itself can be achromatic, reduce tolerance sensitivity, and can also leave some chromatic aberration to balance the chromatic aberration of the system.
  • the total optical length TTL of the optical lens and the focal length value F of the entire group of the optical lens may satisfy: TTL/F ⁇ 3, and more ideally, TTL/F ⁇ 2.5 may be further satisfied. Satisfy the conditional TTL/F ⁇ 3, which can ensure the miniaturization characteristics.
  • the relationship between the optical back focus BFL of the optical lens and the lens group length TL of the optical lens can satisfy: BFL/TL ⁇ 0.1, and more ideally, can further satisfy BFL/TL ⁇ 0.12.
  • BFL/TL ⁇ 0.1 the back focal length can be realized on the basis of miniaturization, which is beneficial to the assembly of the optical lens.
  • the distance between the centers of the second lens and the third lens on the optical axis T23 and the total optical length TTL of the optical lens may satisfy: T23/TTL ⁇ 0.01, and more ideally, T23/ TTL ⁇ 0.005. Satisfying the conditional formula T23/TTL ⁇ 0.01 can make the structure of the optical lens compact and help reduce the overall length of the lens.
  • the distance between the centers of the fourth lens and the fifth lens on the optical axis T45 and the total optical length TTL of the optical lens may satisfy: T45/TTL ⁇ 0.1, and more ideally, it may further satisfy T45/ TTL ⁇ 0.05. Satisfying the conditional formula T45/TTL ⁇ 0.1 can make the structure of the optical lens compact and help reduce the overall length of the lens.
  • the maximum field of view FOV of the optical lens, the maximum clear aperture D of the object side of the first lens corresponding to the maximum field of view of the optical lens, and the image height corresponding to the maximum field of view of the optical lens H can satisfy: D/H/FOV ⁇ 0.06, more ideally, it can further satisfy D/H/FOV ⁇ 0.05. Satisfy the conditional formula D/H/FOV ⁇ 0.06, which can realize the characteristics of small diameter at the front end.
  • the focal length value F5 of the fifth lens and the entire group focal length value F of the optical lens may satisfy: F5/F ⁇ 4, and more ideally, F5/F ⁇ 3.8 may be further satisfied.
  • the short focal length setting of the fifth lens helps to collect light and ensure the amount of light passing.
  • the central curvature radius r1 of the object side surface of the first lens, the central curvature radius r2 of the image side surface of the first lens, and the central thickness d1 of the first lens may satisfy: 0.5 ⁇
  • the special shape design of the lens can help to collect light and improve the image quality.
  • the radius of curvature r2 of the image side surface of the first lens and the radius of curvature r3 of the object side surface of the additional lens may satisfy: -0.15 ⁇ (r2-r3)/(r2+r3) ⁇ 1, more ideally , Can further satisfy -0.1 ⁇ (r2-r3)/(r2+r3) ⁇ 0.5. Satisfying the conditional formula -0.15 ⁇ (r2-r3)/(r2+r3) ⁇ 1, the aberration of the optical system can be corrected and the light emitted from the first lens is incident on the first surface of the additional lens (ie, When the object side), the incident light is relatively gentle, thereby reducing the tolerance sensitivity of the optical system.
  • the center distance T1x between the first lens and the additional lens on the optical axis and the center distance T12 between the first lens and the second lens on the optical axis may satisfy: 0.01 ⁇ T1x/T12 ⁇ 0.15, More ideally, it can further satisfy 0.03 ⁇ T1x/T12 ⁇ 0.12.
  • the aperture number FNO of the optical lens may satisfy FNO ⁇ 2.0 to ensure the characteristics of a large aperture.
  • the peripheral illuminance REILL of the optical lens may satisfy: REILL ⁇ 70%.
  • the optical lens according to the present application may adopt a spherical lens or an aspheric lens.
  • the first lens and/or the second lens may be aspherical lenses to correct system aberrations and improve resolution.
  • the characteristic of aspherical lenses is that the curvature varies continuously from the center of the lens to the periphery. Unlike spherical lenses with constant curvature from the center of the lens to the periphery, aspheric lenses have better radius of curvature characteristics, and have the advantages of improving distortion and astigmatism.
  • the use of aspheric lenses can eliminate as much as possible the aberrations that occur during imaging, thereby improving the imaging quality of the lens. It should be understood that, in order to improve the imaging quality, the optical lens according to the present application can also increase the number of aspherical lenses.
  • the lens used in the optical lens may be a plastic lens or a glass lens.
  • the plastic lens has a large thermal expansion coefficient. When the temperature of the environment used by the lens changes greatly, the plastic lens will cause a large change in the optical back focus of the lens.
  • the use of glass lenses can reduce the impact of temperature on the optical back focus of the lens, but the cost is higher.
  • the optical lens according to the above-mentioned embodiment of the present application can achieve high resolution by using 5 or 6 lenses by reasonably distributing the refractive power, surface shape, center thickness of each lens, and on-axis distance between each lens. Image, taking into account the small size of the lens, low sensitivity, high production yield and low cost requirements. At the same time, the optical lens has the characteristics of long focal length, large aperture, high brightness and high image quality. Therefore, the optical lens according to the above-mentioned embodiments of the present application can have at least one of the beneficial effects of miniaturization, high resolution, large aperture, high brightness, etc., and can better meet the application requirements of, for example, a vehicle-mounted lens.
  • the total optical length TTL of the optical lens used above refers to the on-axis distance from the center of the object side of the first lens to the center of the imaging surface; the optical back focus BFL of the optical lens refers to the distance from the last lens The on-axis distance from the center of the image side surface of the fifth lens to the center of the image surface; and the lens group length TL of the optical lens refers to the on-axis distance from the center of the object side surface of the first lens to the center of the fifth lens side surface of the last lens.
  • the first lens may have negative refractive power and a meniscus shape, and it may have a convex object side surface and a concave image side surface, or a concave object side surface and a convex image side surface.
  • the optical power and surface configuration of the first lens can reduce the incident angle of incident light on the attack surface, which is beneficial to collect more light into the optical system, thereby increasing the luminous flux and achieving higher imaging quality.
  • the second lens may have positive refractive power, its object side surface may be convex, and its image side surface may be convex.
  • the third lens may have positive refractive power, its object side surface may be convex, and its image side surface may be convex.
  • the second lens and the third lens in the optical lens provided by this application are both double-convex lenses with positive refractive power, and both the object side and the image side are convex.
  • the use of the double-convex lens can compress the angle of the incident light and realize the smooth transition of light. , It is beneficial to reduce the aperture of the rear lens, so that the light can enter the rear optical system correctly and smoothly, and improve the resolution quality.
  • the fourth lens is a biconcave lens with negative refractive power, and both the object side and the image side are concave.
  • the combination of the surface shape and optical power of the third lens and the fourth lens can effectively converge the incident light from the front end to smoothly transition to the fifth lens, which is beneficial to reduce the aperture of the rear lens and increase the focal length of the lens.
  • the fifth lens is a meniscus lens with refractive power, which may have a convex object side surface and a concave image side surface, or a concave object side surface and a convex image side surface.
  • the fifth lens can correct the field curvature and astigmatism of the system and the high-order aberrations of the large-angle field of view.
  • a diaphragm for limiting the light beam is provided between the first lens and the second lens, which further improves the imaging quality of the optical lens.
  • the diaphragm When the diaphragm is arranged between the first lens and the second lens, it can effectively condense the light entering the optical system and reduce the lens aperture.
  • the diaphragm may be arranged near the image side surface of the first lens.
  • the position of the diaphragm disclosed here is only an example and not a limitation; in an alternative embodiment, the diaphragm may also be set in other positions according to actual needs.
  • the optical lens according to the present application may further include a filter disposed between the fifth lens and the imaging surface to filter light having different wavelengths; and may also include The protective glass between the filter and the imaging surface to prevent the internal components (for example, chips) of the optical lens from being damaged.
  • cemented lenses can be used to minimize or eliminate chromatic aberration.
  • the use of cemented lenses in optical lenses can improve image quality and reduce the reflection loss of light energy, thereby enhancing the clarity of lens imaging.
  • the use of cemented lenses can also simplify the assembly procedures in the lens manufacturing process.
  • the third lens and the fourth lens are cemented to form a cemented lens.
  • the third lens with positive refractive power is in front and the fourth lens with negative refractive power is in the back.
  • Adopting the cementing method can have at least one of the following advantages: reducing the air gap between the two lenses, thereby reducing the total system length ; Reduce the assembly parts between the third lens and the fourth lens, thereby reducing the process and reducing the cost; reduce the tolerance sensitivity of the lens unit due to the tilt/eccentricity during the assembly process, and improve the production yield; reduce The reflection between the lenses causes the loss of light and increases the illuminance; further reduces the field curvature and effectively corrects the off-axis point aberration of the optical lens.
  • Such a glued design shares the overall chromatic aberration correction of the system, effectively corrects aberrations to improve the resolution, and makes the optical system compact as a whole to meet the requirements of miniaturization.
  • the total length TTL of the optical lens and the total effective focal length F of the optical lens satisfy: TTL/F ⁇ 2.2, for example, TTL/F ⁇ 2.0.
  • Reasonable control of the proportional relationship between the total length of the optical lens and the total effective focal length is conducive to ensuring the miniaturization of the system.
  • the distance SL from the object side surface of the second lens to the imaging surface of the optical lens and the total length TTL of the optical lens satisfy: 0.66 ⁇ SL/TTL ⁇ 1.24, for example, 0.68 ⁇ SL/TTL ⁇ 1.22.
  • Properly controlling the ratio between the distance from the object side of the second lens to the imaging surface of the optical lens and the total length of the optical lens in the optical lens is beneficial to correct system distortion and coma and reduce system tolerance sensitivity.
  • the central thickness CT2 of the second lens on the optical axis and the distance T12 from the image side surface of the first lens to the object side surface of the second lens on the optical axis satisfy: CT2/T12 ⁇ 1.26, for example, CT2/ T12 ⁇ 1.22.
  • Reasonable distribution of the lens spacing is conducive to reducing the lens diameter and lens volume. It can effectively reduce the cost and realize the miniaturization of the system while improving the system's resolution and the overall brightness of the screen.
  • the effective focal length F2 of the second lens and the total effective focal length F of the optical lens satisfy: 0.5 ⁇ F2/F ⁇ 1.5, for example, 0.6 ⁇ F2/F ⁇ 1.0.
  • a reasonable distribution of the ratio between the effective focal length of the second lens and the total effective focal length of the optical lens can effectively improve the system's resolution and reduce the back focus drift of the optical lens in high and low temperature environments.
  • the effective focal length F4 of the fourth lens and the effective focal length F3 of the third lens satisfy:
  • ⁇ 2 Properly distribute the focal lengths of the fourth lens and the third lens in the cemented lens, and control the focal length ratio within a reasonable range, which is beneficial to correct system chromatic aberration and reduce lens tolerance sensitivity.
  • the total effective focal length F of the optical lens and the combined focal length F34 of the third lens and the fourth lens satisfy:
  • ⁇ 1.5 for example,
  • the sum of the central thickness ⁇ CT of all lenses on the optical axis of the optical lens and the total length TTL of the optical lens satisfy: ⁇ CT/TTL ⁇ 0.67, for example, ⁇ CT/TTL ⁇ 0.65.
  • ⁇ CT/TTL 0.07
  • the effective focal length F3 of the third lens and the total effective focal length F of the optical lens satisfy: 0.1 ⁇ F3/F ⁇ 1.3, for example, 0.2 ⁇ F3/F ⁇ 1.2. Controlling the ratio of the effective focal length of the third lens to the total effective focal length of the optical lens within a reasonable numerical range is beneficial to improve the system's resolution and realize the miniaturization of the optical lens.
  • the total length TTL of the optical lens, the image height H corresponding to the maximum field angle of the optical lens, and the maximum field angle FOV of the optical lens satisfy: TTL/H/FOV ⁇ 0.30, for example, TTL/H/ FOV ⁇ 0.20.
  • the maximum field of view FOV of the optical lens, the total effective focal length F of the optical lens, and the image height H corresponding to the maximum field of view of the optical lens satisfy: (FOV ⁇ F)/H ⁇ 65, for example, ( FOV ⁇ F)/H ⁇ 60.
  • Reasonable setting of the relationship between the above three can easily reduce system distortion.
  • the distance T23 from the image side surface of the second lens to the object side surface of the third lens on the optical axis and the total length TTL of the optical lens satisfy: T23/TTL ⁇ 0.03, for example, T23/TTL ⁇ 0.005.
  • Reasonable control of the ratio between the distance from the image side of the second lens to the object side of the third lens on the optical axis and the total length of the optical lens is conducive to reducing the aperture of the lens, reducing the volume of the lens, and improving the resolution of the system.
  • the overall brightness of the screen can effectively reduce costs and achieve system miniaturization.
  • the image height H corresponding to the total effective focal length F of the optical lens and the maximum field angle of the optical lens satisfies: F/H ⁇ 1.5, for example, F/H ⁇ 1.6.
  • the distance DSR3 from the diaphragm to the second lens and the distance T12 from the image side surface of the first lens to the object side surface of the second lens on the optical axis satisfy: DSR3/T12 ⁇ 0.42, for example, DSR3/T12 ⁇ 0.44.
  • Reasonable setting of the relationship between the above two is conducive to improving the resolution of the system and easy to achieve miniaturization of the optical lens.
  • the distance BFL from the image side surface of the fifth lens to the imaging surface of the optical lens and the distance TL from the object side surface of the first lens to the image side surface of the fifth lens satisfy: BFL/TL ⁇ 0.10, for example, BFL/ TL ⁇ 0.12.
  • Reasonable control of the ratio between the back focal length of the optical lens and the length of the lens group of the optical lens is conducive to the assembly of modules on the basis of miniaturization of the system.
  • the back focal length of the optical lens is BFL; the lens group length of the optical lens is TL.
  • the refractive index Nd2 of the second lens satisfies: 1.5 ⁇ Nd2, for example, 1.55 ⁇ Nd2.
  • Reasonable setting of the refractive index of the second lens is conducive to reducing lens aperture, improving imaging quality, reducing system tolerance sensitivity, improving production yield, and reducing production costs.
  • the refractive index Nd3 of the third lens and the refractive index Nd4 of the fourth lens satisfy: Nd3/Nd4 ⁇ 1.5, for example, Nd3/Nd4 ⁇ 1.2.
  • Reasonably setting the refractive index ratio of the third lens and the fourth lens in the cemented lens is beneficial to correct the chromatic aberration of the system, control the light direction, and reduce the diameter of the rear port of the lens.
  • the Abbe number Vd4 of the fourth lens and the Abbe number Vd3 of the third lens satisfy: Vd4/Vd3 ⁇ 1.1, for example, Vd4/Vd3 ⁇ 0.8.
  • Reasonable setting of the Abbe number ratio between the fourth lens and the third lens in the cemented lens is beneficial to correct the axial and vertical chromatic aberration of the optical lens and improve the resolution quality.
  • At least one of the first lens, the second lens, and the fifth lens is an aspheric lens.
  • the characteristic of an aspheric lens is that the curvature varies continuously from the center of the lens to the periphery. Unlike spherical lenses with constant curvature from the center to the periphery of the lens, aspheric lenses have better curvature radius characteristics, and have the advantages of improving distortion and astigmatism. After the aspheric lens is used, the aberrations that occur during imaging can be eliminated as much as possible, thereby improving the imaging quality of the lens. For example, the use of an aspheric lens for the first lens can further improve the resolution quality.
  • the first lens, the second lens, and the fifth lens may all adopt aspheric lenses. This helps correct system aberrations and improve resolution.
  • each lens in the optical lens is made of glass material.
  • the thermal expansion coefficient of the plastic lens is relatively large.
  • the plastic lens will cause a large change in the optical back focus of the lens.
  • the use of glass lenses can reduce the effect of temperature on the optical back focus of the lens.
  • the use of glass lenses can ensure the stability of the optical performance at different temperatures.
  • the optical lens of the above-mentioned embodiment of the present application by optimizing the lens shape, rationally distributing the optical power, and rationally selecting the lens material, high resolution (above 8M) can be achieved by using a five-element structure, and at the same time, the lens can be miniaturized and sensitive. Low temperature, high production yield, low cost and other requirements.
  • the optical lens has a small CRA, which prevents stray light from hitting the lens barrel when the rear end of the light exits, and can be well matched with, for example, automotive chips, without color cast and vignetting.
  • the optical lens has good temperature performance, small changes in imaging effects at high and low temperatures, and stable image quality, which is beneficial to most environments where vehicles are used. Therefore, the optical lens according to the foregoing embodiments of the present application can better meet the requirements of, for example, automotive applications.
  • the first lens has negative refractive power, the object side is concave, and the image side is convex; the second lens has positive refractive power; the third lens has refractive power; the fourth lens has refractive power; and
  • the fifth lens has optical power.
  • the first lens may have a negative refractive power and a meniscus shape facing the image side, the object side surface may be a concave surface, and the image side surface may be a convex surface.
  • the optical power and surface configuration of the first lens is not only conducive to light entering the rear optical system smoothly, improving the resolution of the lens, but also conducive to the optical system to collect incident light with a large field of view, ensuring that as much light enters as possible, thereby increasing Luminous flux, enhance illuminance.
  • the second lens may have a positive refractive power, and the object side surface and the image side surface may both be convex surfaces, or the object side surface may be concave, and the image side surface may be convex.
  • a diaphragm may be provided between the first lens and the second lens.
  • the second lens with positive refractive power can be arranged behind the diaphragm and cooperate with the diaphragm to facilitate light convergence, reduce the diameter and length of the optical lens barrel, and realize the miniaturization of the lens.
  • the third lens and the fourth lens can be arranged in cooperation.
  • the third lens may have a positive refractive power, and the object side surface and the image side surface may both be convex.
  • the fourth lens may have negative refractive power, and both the object side and the image side may be concave.
  • the third lens with positive refractive power is in front, and the fourth lens with negative refractive power is behind, which is beneficial to smoothly transition the light passing through the second lens to the fourth lens and reduce the overall length of the optical system.
  • the third lens may have a negative refractive power, and the object side surface and the image side surface may both be concave.
  • the fourth lens may have a positive refractive power, and the object side and the image side may both be convex.
  • the third lens with negative refractive power is in the front, and the fourth lens with positive refractive power is in the rear, which is beneficial to realize the effective convergence of the front diverging light by the fourth lens.
  • the fifth lens may have positive refractive power or negative refractive power.
  • the fifth lens has a positive refractive power
  • its object side surface can be convex
  • its image side surface can be concave
  • its object side surface can be concave
  • its image side surface can be concave
  • its object side and image side can be concave at the same time.
  • a diaphragm is provided between the first lens and the second lens to limit the light beam to further improve the imaging quality of the optical lens.
  • the diaphragm is beneficial to effectively converge the light entering the optical system, shorten the overall length of the system, and reduce the lens aperture.
  • the diaphragm may be arranged near the image side surface of the first lens or the diaphragm may be close to the image side surface of the first lens.
  • the position of the diaphragm disclosed here is only an example and not a limitation; in an alternative embodiment, the diaphragm may also be set in other positions according to actual needs.
  • the optical lens according to the present application may further include a filter provided between the fifth lens and the imaging surface to filter light having different wavelengths.
  • the optical lens according to the present application may further include a protective glass disposed between the fifth lens and the imaging surface to prevent internal elements (for example, chips) of the optical lens from being damaged.
  • cemented lenses can be used to minimize or eliminate chromatic aberration.
  • the use of cemented lenses in optical lenses can improve image quality and reduce the reflection loss of light energy, thereby enhancing the clarity of lens imaging.
  • the use of cemented lenses can also simplify the assembly procedures in the lens manufacturing process.
  • the third lens and the fourth lens are cemented to form a cemented lens.
  • the third lens with positive refractive power is combined with the fourth lens with negative refractive power, or the third lens with negative refractive power is combined with the fourth lens with positive refractive power.
  • the third lens and the fourth lens are cemented together, which can smoothly transition the light passing through the third lens to the imaging surface, reduce the overall length of the system, and correct various aberrations of the optical system. Under the premise of a compact system structure, Improve the lens resolution, optimize the optical performance such as distortion, CRA (Chief Ray Angle, chief ray angle).
  • CRA Choef Ray Angle, chief ray angle
  • the above-mentioned cementing method also has at least one of the following advantages: reducing its own chromatic aberration, reducing tolerance sensitivity, and balancing the overall chromatic aberration of the system through residual partial chromatic aberration; reducing the air gap between the two lenses, thereby reducing The total length of the system; reduce the assembly parts between the lenses, thereby reducing the process and reducing the cost; reduce the tolerance sensitivity of the lens unit due to the tilt/eccentricity during the assembly process, and improve the production yield; reduce the reflection between the lenses Loss of light, increasing illuminance; further reducing field curvature, effectively correcting the off-axis point aberration of the optical lens.
  • Such a bonding arrangement shares the overall chromatic aberration correction of the system, effectively corrects aberrations to improve the resolution, and makes the optical system compact as a whole to meet the requirements of miniaturization.
  • the combined focal length F34 of the third lens and the fourth lens and the total effective focal length F of the optical lens satisfy: 0.2 ⁇
  • the distance from the object side of the first lens to the imaging surface of the optical lens on the optical axis TTL and the total effective focal length F of the optical lens satisfy: TTL/F ⁇ 3, preferably, TTL/F ⁇ 2.5 .
  • the distance from the object side of the first lens to the imaging surface of the optical lens on the optical axis is also referred to as the total length of the optical lens.
  • Reasonable control of the proportional relationship between the total length of the optical lens and the total effective focal length is conducive to miniaturization of the system.
  • the distance BFL from the image side surface of the fifth lens to the imaging surface of the optical lens on the optical axis and the distance from the object side surface of the first lens to the imaging surface of the optical lens on the optical axis TTL satisfy: BFL/ TTL ⁇ 0.10, preferably, BFL/TTL ⁇ 0.12.
  • the distance from the image side surface of the fifth lens to the imaging surface of the optical lens on the optical axis is also referred to as the back focal length of the optical lens.
  • the proportional relationship between the back focal length of the optical lens and the total length of the optical lens is reasonably controlled, and the back focal length of the optical lens is reduced, which is conducive to the assembly of miniaturized modules.
  • the length of the lens group refers to the distance from the object side of the first lens to the image side of the fifth lens on the optical axis.
  • the maximum field of view FOV of the optical lens, the maximum clear aperture D of the object side of the first lens corresponding to the maximum field of view FOV, and the image height H corresponding to the maximum field of view FOV satisfy: D/H/FOV ⁇ 0.08, preferably, D/H/FOV ⁇ 0.10.
  • the effective focal length F3 of the third lens and the effective focal length F4 of the fourth lens satisfy: 0.6 ⁇
  • the effective focal length F1 of the first lens and the total effective focal length F of the optical lens satisfy: 4 ⁇
  • Reasonably setting the ratio of the effective focal length of the first lens to the total effective focal length of the optical lens is beneficial to more light entering the optical system smoothly and increasing the system illuminance.
  • the ratio of the center thickness of any two of the first lens to the fifth lens on the optical axis is not more than 3.5. Setting the maximum value of the ratio of the center thickness of any two lenses on the optical axis of the first lens to the fifth lens to be less than or equal to 3.5 is beneficial to uniform the center thickness of each lens, so that the function of each lens is stable, and the lens is at a height. The light change is small and the temperature performance is good in low temperature environment.
  • the effective focal length F1 of the first lens and the effective focal length F2 of the second lens satisfy: 4 ⁇
  • the radius of curvature R4 of the object side surface of the second lens and the radius of curvature R5 of the image side surface of the second lens satisfy:
  • Properly setting the relationship between the radius of curvature of the object side surface of the second lens and the radius of curvature of the image side surface of the second lens is not only beneficial to correct the aberration of the optical system, but also helps to ensure that light passes smoothly through the second lens, thereby reducing the optical system Tolerance sensitivity.
  • the curvature radius R1 of the object side surface of the first lens and the curvature radius R2 of the image side surface of the first lens satisfy: 0.5 ⁇
  • the separation distance T12 between the first lens and the second lens on the optical axis and the distance TTL from the object side of the first lens to the imaging surface of the optical lens on the optical axis satisfy: 0.02 ⁇ T12/TTL ⁇ 0.33, preferably, 0.05 ⁇ T12/TTL ⁇ 0.30.
  • the ratio between the distance between the first lens and the second lens on the optical axis and the total length of the optical lens to effectively control the distance between the first lens and the second lens on the optical axis, which is beneficial to improve the lens resolution.
  • the separation distance T45 between the fourth lens and the fifth lens on the optical axis and the distance TTL from the object side of the first lens to the imaging surface of the optical lens on the optical axis satisfy: T45/TTL ⁇ 0.20, Preferably, 0.05 ⁇ T45/TTL ⁇ 0.15.
  • T45 and TTL may also satisfy 0.10 ⁇ T45/TTL ⁇ 0.60, preferably 0.15 ⁇ T45/TTL ⁇ 0.55.
  • each of the first lens to the fifth lens may be an aspheric lens.
  • the characteristic of an aspheric lens is that the curvature varies continuously from the center of the lens to the periphery. Unlike spherical lenses with constant curvature from the center to the periphery of the lens, aspheric lenses have better curvature radius characteristics, and have the advantages of improving distortion and astigmatism. After the aspheric lens is used, the aberrations that occur during imaging can be eliminated as much as possible, thereby improving the imaging quality of the lens.
  • the setting of the aspheric lens helps correct system aberrations and improve the resolution.
  • both the first lens and the fifth lens are aspheric lenses.
  • the fifth lens is an aspheric lens, which is beneficial to smooth the light trend in the front optical system and improve the resolution.
  • the optical lens according to the above-mentioned embodiment of the present application realizes high-definition imaging by optimizing the lens shape, adopting the cemented lens setting, reasonably distributing the optical power, and appropriately setting the number of aspheric mirrors.
  • the above-mentioned optical lens can take into account the characteristics of miniaturization, high resolution, low cost, and good temperature adaptability, and meet the application requirements of miniaturization and high resolution of the vehicle rearview lens.
  • the number of lenses constituting the lens can be changed to obtain the various results and advantages described in this specification.
  • the optical lens is not limited to include five or six lenses. If necessary, the optical lens may also include other numbers of lenses.
  • FIG. 1 shows a schematic structural diagram of an optical lens according to Embodiment 1 of the present application.
  • the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 in order from the object side to the imaging side along the optical axis.
  • the first lens L1 is a meniscus lens with negative refractive power, and its object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens L2 is a biconvex lens with positive refractive power, and the object side surface S4 and the image side surface S5 are both convex.
  • the third lens L3 is a double-convex lens with positive refractive power, and the object side surface S6 and the image side surface S7 are both convex.
  • the fourth lens L4 is a biconcave lens with negative refractive power, and the object side surface S7 and the image side surface S8 are both concave. Among them, the third lens L3 and the fourth lens L4 are cemented with each other to form a cemented lens.
  • the fifth lens L5 is a meniscus lens with positive refractive power
  • the object side surface S9 is a convex surface
  • the image side surface S10 is a concave surface.
  • the first lens L1 and the second lens L2 are both aspherical lenses, and their respective object side and image side surfaces are both aspherical.
  • the optical lens may further include a filter L6 having an object side surface S11 and an image side surface S12 and/or a protective lens L7 having an object side surface S13 and an image side surface S14.
  • Filter L6 can be used to correct color deviation.
  • the protective lens L7 can be used to protect the image sensor chip located on the imaging surface IMA. The light from the object sequentially passes through the surfaces S1 to S14 and is finally imaged on the imaging surface IMA.
  • a stop STO may be provided between the first lens L1 and the second lens L2 to improve the imaging quality.
  • Table 1 shows the radius of curvature R and thickness T of each lens of the optical lens of Example 1 (it should be understood that T 1 is the central thickness of the first lens L1, and T 2 is the distance between the first lens L1 and the second lens L2.
  • T 1 is the central thickness of the first lens L1
  • T 2 is the distance between the first lens L1 and the second lens L2.
  • refractive index Nd and Abbe number Vd where the units of the radius of curvature R and the thickness T are millimeters (mm).
  • This embodiment uses five lenses as an example.
  • the lens can be miniaturized, high resolution, and large aperture.
  • At least one of the beneficial effects such as high brightness.
  • Each aspheric surface type Z is defined by the following formula:
  • Z is the height of the distance vector from the vertex of the aspheric surface when the aspheric surface is at a height of h along the optical axis direction;
  • k is the conic coefficient conic;
  • A, B, C, D, and E are all higher-order coefficients.
  • Table 2 shows the conic coefficient k and higher order coefficients A, B, C, D, and E of the aspheric lens surfaces S1-S2 and S4-S5 that can be used in Example 1.
  • Table 3 below shows the maximum field angle FOV of the optical lens of Example 1, the maximum field of view of the object side S1 of the first lens L1 corresponding to the maximum field angle of the optical lens, and the maximum field of view of the optical lens
  • the image height H corresponding to the angle, the central radius of curvature r1 of the object side surface S1 of the first lens L1, the central thickness d1 of the first lens L1, the central radius of curvature r2 of the image side surface S2 of the first lens L1, the second lens L2, and The distance between the centers of the third lens L3 on the optical axis T23, the distance between the centers of the fourth lens L4 and the fifth lens L5 on the optical axis T45, and the total optical length TTL of the optical lens (ie, from the object side S1 of the first lens L1)
  • the on-axis distance from the center of the optical lens to the imaging surface IMA), the optical back focus BFL of the optical lens that is, the on-axis distance from the center of the image side surface
  • FIG. 2 shows a schematic structural diagram of an optical lens according to Embodiment 2 of the present application.
  • the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 in order from the object side to the imaging side along the optical axis.
  • the first lens L1 is a meniscus lens with negative refractive power, and its object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens L2 is a biconvex lens with positive refractive power, and the object side surface S4 and the image side surface S5 are both convex.
  • the third lens L3 is a double-convex lens with positive refractive power, and the object side surface S6 and the image side surface S7 are both convex.
  • the fourth lens L4 is a biconcave lens with negative refractive power, and the object side surface S7 and the image side surface S8 are both concave. Among them, the third lens L3 and the fourth lens L4 are cemented with each other to form a cemented lens.
  • the fifth lens L5 is a meniscus lens with positive refractive power
  • the object side surface S9 is a convex surface
  • the image side surface S10 is a concave surface.
  • the first lens L1 and the second lens L2 are both aspherical lenses, and their respective object side and image side surfaces are both aspherical.
  • the optical lens may further include a filter L6 having an object side surface S11 and an image side surface S12 and/or a protective lens L7 having an object side surface S13 and an image side surface S14.
  • Filter L6 can be used to correct color deviation.
  • the protective lens L7 can be used to protect the image sensor chip located on the imaging surface IMA. The light from the object sequentially passes through the surfaces S1 to S14 and is finally imaged on the imaging surface IMA.
  • a stop STO may be provided between the first lens L1 and the second lens L2 to improve the imaging quality.
  • Table 4 shows the radius of curvature R, thickness T, refractive index Nd, and Abbe number Vd of each lens of the optical lens of Example 2, where the units of the radius of curvature R and the thickness T are millimeters (mm).
  • Table 5 shows the conic coefficient k and the higher order coefficients A, B, C, D, and E that can be used for the aspheric lens surfaces S1-S2 and S4-S5 in Example 2.
  • Table 6 below shows the maximum field angle FOV of the optical lens of Example 2, the maximum field of view of the object side S1 of the first lens L1 corresponding to the maximum field angle of the optical lens, and the maximum field of view of the optical lens
  • the image height H corresponding to the angle, the central radius of curvature r1 of the object side surface S1 of the first lens L1, the central thickness d1 of the first lens L1, the central radius of curvature r2 of the image side surface S2 of the first lens L1, the second lens L2, and The center distance of the third lens L3 on the optical axis T23, the center distance of the fourth lens L4 and the fifth lens L5 on the optical axis T45, the optical total length of the optical lens TTL, the optical back focus of the optical lens BFL, the optical lens
  • the lens group length TL the entire group focal length value F of the optical lens, the focal length value F5 of the fifth lens L5, the aperture number FNO of the optical lens, the central thickness d2-d5 of the second lens L
  • FIG. 3 shows a schematic structural diagram of an optical lens according to Embodiment 3 of the present application.
  • the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 in order from the object side to the imaging side along the optical axis.
  • the first lens L1 is a meniscus lens with negative refractive power, and its object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens L2 is a biconvex lens with positive refractive power, and the object side surface S4 and the image side surface S5 are both convex.
  • the third lens L3 is a double-convex lens with positive refractive power, and the object side surface S6 and the image side surface S7 are both convex.
  • the fourth lens L4 is a biconcave lens with negative refractive power, and the object side surface S7 and the image side surface S8 are both concave. Among them, the third lens L3 and the fourth lens L4 are cemented with each other to form a cemented lens.
  • the fifth lens L5 is a meniscus lens with positive refractive power
  • the object side surface S9 is a convex surface
  • the image side surface S10 is a concave surface.
  • the first lens L1 and the second lens L2 are both aspherical lenses, and their respective object side and image side surfaces are both aspherical.
  • the optical lens may further include a filter L6 having an object side surface S11 and an image side surface S12 and/or a protective lens L7 having an object side surface S13 and an image side surface S14.
  • Filter L6 can be used to correct color deviation.
  • the protective lens L7 can be used to protect the image sensor chip located on the imaging surface IMA. The light from the object sequentially passes through the surfaces S1 to S14 and is finally imaged on the imaging surface IMA.
  • a stop STO may be provided between the first lens L1 and the second lens L2 to improve the imaging quality.
  • Table 7 shows the radius of curvature R, thickness T, refractive index Nd, and Abbe number Vd of each lens of the optical lens of Example 3, where the units of the radius of curvature R and the thickness T are millimeters (mm).
  • Table 8 shows the conic coefficient k and higher order coefficients A, B, C, D, and E that can be used for the aspheric lens surfaces S1-S2 and S4-S5 in Example 3.
  • Table 9 below shows the maximum field of view FOV of the optical lens of Example 3, the maximum clear aperture D of the object side S1 of the first lens L1 corresponding to the maximum field 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 central radius of curvature r1 of the object side surface S1 of the first lens L1, the central thickness d1 of the first lens L1, the central radius of curvature r2 of the image side surface S2 of the first lens L1, the second lens L2, and The center distance of the third lens L3 on the optical axis T23, the center distance of the fourth lens L4 and the fifth lens L5 on the optical axis T45, the optical total length of the optical lens TTL, the optical back focus of the optical lens BFL, the optical lens
  • the lens group length TL the entire group focal length value F of the optical lens, the focal length value F5 of the fifth lens L5, the aperture number FNO of the optical lens, the central thickness d2-d5 of the second
  • FIG. 4 shows a schematic structural diagram of an optical lens according to Embodiment 4 of the present application.
  • the optical lens includes a first lens L1, an additional lens Lx, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 in order from the object side to the imaging side along the optical axis.
  • the first lens L1 is a meniscus lens with positive refractive power, and its object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the first lens L1 is an aspheric lens, and both the object side and the image side are aspheric.
  • the additional lens Lx is a meniscus lens with 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 a biconvex lens with positive refractive power, and the object side surface S6 and the image side surface S7 are both convex.
  • the third lens L3 is a biconvex lens with positive refractive power, and the object side surface S8 and the image side surface S9 are both convex.
  • the fourth lens L4 is a biconcave lens with negative refractive power, and the object side surface S9 and the image side surface S10 are both concave. Among them, the third lens L3 and the fourth lens L4 are cemented with each other to form a cemented lens.
  • the fifth lens L5 is a meniscus lens with positive refractive power, and its object side surface S11 is a convex surface, and the image side surface S12 is a concave surface.
  • the optical lens may further include a filter L6 having an object side surface S13 and an image side surface S14 and/or a protective lens L7 having an object side surface S15 and an image side surface S16.
  • Filter L6 can be used to correct color deviation.
  • the protective lens L7 can be used to protect the image sensor chip located on the imaging surface IMA. The light from the object sequentially passes through the surfaces S1 to S16 and is finally imaged on the imaging surface IMA.
  • a stop STO may be provided between the additional lens Lx and the second lens L2 to improve imaging quality.
  • Table 10 shows the radius of curvature R, thickness T, refractive index Nd, and Abbe number Vd of each lens of the optical lens of Example 4, where the units of the radius of curvature R and the thickness T are millimeters (mm).
  • Table 11 shows the conic coefficient k and the higher order term coefficients A, B, C, D, and E that can be used for the aspheric lens surfaces S1-S2 in Example 4.
  • the following table 12 shows the maximum field of view FOV of the optical lens of Example 4, the maximum clear aperture D of the object side S1 of the first lens L1 corresponding to the maximum field 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 central curvature radius r1 of the object side surface S1 of the first lens L1, the central curvature radius r2 of the image side surface S2 of the first lens L1, the central curvature radius r3 of the object side surface S3 of the additional lens Lx, and the The center thickness d1 of a lens L1, the center distance T12 between the first lens L1 and the second lens L2 on the optical axis, the center distance T23 between the second lens L2 and the third lens L3 on the optical axis, the fourth lens L4 and the first lens
  • FIG. 5 shows a schematic structural diagram of an optical lens according to Embodiment 5 of the present application.
  • the optical lens includes a first lens L1, an additional lens Lx, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 in order from the object side to the imaging side along the optical axis.
  • the first lens L1 is a meniscus lens with positive refractive power, and its object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the first lens L1 is an aspheric lens, and both the object side and the image side are aspheric.
  • the additional lens Lx is a meniscus lens with 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 a biconvex lens with positive refractive power, and the object side surface S6 and the image side surface S7 are both convex.
  • the third lens L3 is a biconvex lens with positive refractive power, and the object side surface S8 and the image side surface S9 are both convex.
  • the fourth lens L4 is a biconcave lens with negative refractive power, and the object side surface S9 and the image side surface S10 are both concave. Among them, the third lens L3 and the fourth lens L4 are cemented with each other to form a cemented lens.
  • the fifth lens L5 is a meniscus lens with positive refractive power, and its object side surface S11 is a convex surface, and the image side surface S12 is a concave surface.
  • the optical lens may further include a filter L6 having an object side surface S13 and an image side surface S14 and/or a protective lens L7 having an object side surface S15 and an image side surface S16.
  • Filter L6 can be used to correct color deviation.
  • the protective lens L7 can be used to protect the image sensor chip located on the imaging surface IMA. The light from the object sequentially passes through the surfaces S1 to S16 and is finally imaged on the imaging surface IMA.
  • a stop STO may be provided between the additional lens Lx and the second lens L2 to improve imaging quality.
  • Table 13 below shows the radius of curvature R, thickness T, refractive index Nd, and Abbe number Vd of each lens of the optical lens of Example 5, wherein the units of the radius of curvature R and the thickness T are millimeters (mm).
  • Table 14 below shows the conic coefficient k and the higher order term coefficients A, B, C, D, and E that can be used for the aspheric lens surface S1-S2 in Example 5.
  • Table 15 below shows the maximum field of view FOV of the optical lens of Example 5, the maximum clear aperture D of the object side S1 of the first lens L1 corresponding to the maximum field 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 central curvature radius r1 of the object side surface S1 of the first lens L1, the central curvature radius r2 of the image side surface S2 of the first lens L1, the central curvature radius r3 of the object side surface S3 of the additional lens Lx, and the The center thickness d1 of a lens L1, the center distance T12 between the first lens L1 and the second lens L2 on the optical axis, the center distance T23 between the second lens L2 and the third lens L3 on the optical axis, the fourth lens L4 and the first lens
  • FIG. 6 shows a schematic structural diagram of an optical lens according to Embodiment 6 of the present application.
  • the optical lens includes a first lens L1, an additional lens Lx, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 in order from the object side to the imaging side along the optical axis.
  • the first lens L1 is a meniscus lens with positive refractive power, and its object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the first lens L1 is an aspheric lens, and both the object side and the image side are aspheric.
  • the additional lens Lx is a meniscus lens with 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 a biconvex lens with positive refractive power, and the object side surface S6 and the image side surface S7 are both convex.
  • the third lens L3 is a biconvex lens with positive refractive power, and the object side surface S8 and the image side surface S9 are both convex.
  • the fourth lens L4 is a biconcave lens with negative refractive power, and the object side surface S9 and the image side surface S10 are both concave. Among them, the third lens L3 and the fourth lens L4 are cemented with each other to form a cemented lens.
  • the fifth lens L5 is a meniscus lens with positive refractive power, and its object side surface S11 is a convex surface, and the image side surface S12 is a concave surface.
  • the optical lens may further include a filter L6 having an object side surface S13 and an image side surface S14 and/or a protective lens L7 having an object side surface S15 and an image side surface S16.
  • Filter L6 can be used to correct color deviation.
  • the protective lens L7 can be used to protect the image sensor chip located on the imaging surface IMA. The light from the object sequentially passes through the surfaces S1 to S16 and is finally imaged on the imaging surface IMA.
  • a stop STO may be provided between the additional lens Lx and the second lens L2 to improve imaging quality.
  • Table 16 below shows the radius of curvature R, thickness T, refractive index Nd, and Abbe number Vd of each lens of the optical lens of Example 6, wherein the units of the radius of curvature R and the thickness T are millimeters (mm).
  • Table 17 below shows the conic coefficient k and the higher order coefficients A, B, C, D, and E that can be used for the aspheric lens surfaces S1-S2 and S6-S9 in Example 6.
  • Table 18 below shows the maximum field of view FOV of the optical lens of Example 6, the maximum clear aperture D of the object side S1 of the first lens L1 corresponding to the maximum field 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 central curvature radius r1 of the object side surface S1 of the first lens L1, the central curvature radius r2 of the image side surface S2 of the first lens L1, the central curvature radius r3 of the object side surface S3 of the additional lens Lx, and the The center thickness d1 of a lens L1, the center distance T12 between the first lens L1 and the second lens L2 on the optical axis, the center distance T23 between the second lens L2 and the third lens L3 on the optical axis, the fourth lens L4 and the first lens
  • Example 1 to Example 6 respectively satisfy the relationships shown in Table 19 below.
  • FIG. 7 shows a schematic structural diagram of an optical lens according to Embodiment 7 of the present application.
  • the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 in order from the object side to the image side along the optical axis.
  • the first lens L1 is a meniscus lens with negative refractive power, and its object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens L2 is a biconvex lens with positive refractive power, the object side surface S4 is a convex surface, and the image side surface S5 is a convex surface.
  • the third lens L3 is a biconvex lens with positive refractive power, the object side surface S6 is a convex surface, and the image side surface S7 is a convex surface.
  • the fourth lens L4 is a biconcave lens with negative refractive power
  • the object side surface S7 is a concave surface
  • the image side surface S8 is a concave surface.
  • the fifth lens L5 is a meniscus lens with negative refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface.
  • the third lens L3 and the fourth lens L4 may be cemented to form a cemented lens.
  • the optical lens may further include a stop ST0, and the stop ST0 may be disposed between the first lens L1 and the second lens L2 to improve imaging quality.
  • the stop ST0 may be arranged close to the image side surface S2 of the first lens L1.
  • the object side surface S1 and the image side surface S2 of the first lens L1 and the object side surface S4 and the image side surface S5 of the second lens L2 may be aspherical.
  • the optical lens may further include a filter OF having an object side surface S11 and an image side surface S12, and a protective glass CG having an object side surface S13 and an image side surface S14.
  • the filter OF can be used to correct color deviation
  • the protective glass CG can be used to protect the image sensor chip IMA located at the imaging surface S15. The light from the object sequentially passes through each surface S1 to S14 and is finally imaged on the imaging surface S15.
  • Table 20 shows the radius of curvature R and thickness T of each lens of the optical lens of Example 7 (it should be understood that the thickness T in the row of S1 is the center thickness of the first lens L1, and the thickness T in the row of S2 is the first lens.
  • Table 21 shows the conic coefficient K and the higher order coefficients A, B, C, D, and E of the aspheric lens surfaces S1, S2, S4, and S5 that can be used in Example 7.
  • FIG. 8 shows a schematic structural diagram of an optical lens according to Embodiment 8 of the present application.
  • the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 in order from the object side to the image side along the optical axis.
  • the first lens L1 is a meniscus lens with negative refractive power, and its object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens L2 is a biconvex lens with positive refractive power, the object side surface S4 is a convex surface, and the image side surface S5 is a convex surface.
  • the third lens L3 is a biconvex lens with positive refractive power, the object side surface S6 is a convex surface, and the image side surface S7 is a convex surface.
  • the fourth lens L4 is a biconcave lens with negative refractive power
  • the object side surface S7 is a concave surface
  • the image side surface S8 is a concave surface.
  • the fifth lens L5 is a meniscus lens with positive refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface.
  • the third lens L3 and the fourth lens L4 may be cemented to form a cemented lens.
  • the optical lens may further include a stop ST0, and the stop ST0 may be disposed between the first lens L1 and the second lens L2 to improve imaging quality.
  • the stop ST0 may be arranged close to the object side S4 of the second lens L2.
  • the object side S1 and the image side S2 of the first lens L1, the object side S4 and the image side S5 of the second lens L2, and the object side S9 and the image side S10 of the fifth lens L5 may all be aspherical.
  • the optical lens may further include a filter OF having an object side surface S11 and an image side surface S12, and a protective glass CG having an object side surface S13 and an image side surface S14.
  • the filter OF can be used to correct color deviation
  • the protective glass CG can be used to protect the image sensor chip IMA located at the imaging surface S15. The light from the object sequentially passes through each surface S1 to S14 and is finally imaged on the imaging surface S15.
  • Table 22 shows the radius of curvature R, thickness T, refractive index Nd, and Abbe number Vd of each lens of the optical lens of Example 8.
  • Table 23 below shows the conic coefficients K and higher order coefficients A, B, C, D, and E that can be used for the aspheric lens surfaces S1, S2, S4, S5, S9, and S10 in Example 8.
  • FIG. 9 shows a schematic structural diagram of an optical lens according to Embodiment 9 of the present application.
  • the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 in order from the object side to the image side along the optical axis.
  • the first lens L1 is a meniscus lens with negative refractive power, and its object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens L2 is a biconvex lens with positive refractive power, the object side surface S4 is a convex surface, and the image side surface S5 is a convex surface.
  • the third lens L3 is a biconvex lens with positive refractive power, the object side surface S6 is a convex surface, and the image side surface S7 is a convex surface.
  • the fourth lens L4 is a biconcave lens with negative refractive power
  • the object side surface S7 is a concave surface
  • the image side surface S8 is a concave surface.
  • the fifth lens L5 is a meniscus lens with negative refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface.
  • the third lens L3 and the fourth lens L4 may be cemented to form a cemented lens.
  • the optical lens may further include a stop ST0, and the stop ST0 may be disposed between the first lens L1 and the second lens L2 to improve imaging quality.
  • the stop ST0 may be arranged close to the image side surface S2 of the first lens L1.
  • the object side surface S1 and the image side surface S2 of the first lens L1 and the object side surface S9 and the image side surface S10 of the fifth lens L5 may be aspherical.
  • the optical lens may further include a filter OF having an object side surface S11 and an image side surface S12, and a protective glass CG having an object side surface S13 and an image side surface S14.
  • the filter OF can be used to correct color deviation
  • the protective glass CG can be used to protect the image sensor chip IMA located at the imaging surface S15. The light from the object sequentially passes through each surface S1 to S14 and is finally imaged on the imaging surface S15.
  • Table 24 shows the radius of curvature R, thickness T, refractive index Nd, and Abbe number Vd of each lens of the optical lens of Example 9.
  • Table 25 shows the conic coefficient K and the higher order coefficients A, B, C, D, and E that can be used for the aspheric lens surfaces S1, S2, S9, and S10 in Example 9.
  • FIG. 10 shows a schematic structural diagram of an optical lens according to Embodiment 10 of the present application.
  • the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 in order from the object side to the image side along the optical axis.
  • the first lens L1 is a meniscus lens with negative refractive power, and its object side surface S1 is a convex surface, and the image side surface S2 is a concave surface.
  • the second lens L2 is a biconvex lens with positive refractive power, the object side surface S4 is a convex surface, and the image side surface S5 is a convex surface.
  • the third lens L3 is a biconvex lens with positive refractive power, the object side surface S6 is a convex surface, and the image side surface S7 is a convex surface.
  • the fourth lens L4 is a biconcave lens with negative refractive power
  • the object side surface S7 is a concave surface
  • the image side surface S8 is a concave surface.
  • the fifth lens L5 is a meniscus lens with positive refractive power
  • the object side surface S9 is a convex surface
  • the image side surface S10 is a concave surface.
  • the third lens L3 and the fourth lens L4 may be cemented to form a cemented lens.
  • the optical lens may further include a stop ST0, and the stop ST0 may be disposed between the first lens L1 and the second lens L2 to improve imaging quality.
  • the stop ST0 may be arranged close to the image side surface S2 of the first lens L1.
  • the object side surface S1 and the image side surface S2 of the first lens L1 and the object side surface S4 and the image side surface S5 of the second lens L2 may be aspherical.
  • the optical lens may further include a filter OF having an object side surface S11 and an image side surface S12, and a protective glass CG having an object side surface S13 and an image side surface S14.
  • the filter OF can be used to correct color deviation
  • the protective glass CG can be used to protect the image sensor chip IMA located at the imaging surface S15. The light from the object sequentially passes through the respective surfaces S1 to S14 and is finally imaged on the imaging surface S15.
  • Table 26 shows the radius of curvature R, thickness T, refractive index Nd, and Abbe number Vd of each lens of the optical lens of Example 10.
  • Table 27 shows the conic coefficient K and the higher order coefficients A, B, C, D, and E that can be used for the aspheric lens surfaces S1, S2, S4, and S5 in Example 10.
  • FIG. 11 shows a schematic structural diagram of an optical lens according to Embodiment 11 of the present application.
  • the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 in order from the object side to the image side along the optical axis.
  • the first lens L1 is a meniscus lens with negative refractive power
  • the object side surface S1 is a concave surface
  • the image side surface S2 is a convex surface.
  • the second lens L2 is a biconvex lens with positive refractive power
  • the object side surface S4 is a convex surface
  • the image side surface S5 is a convex surface.
  • the third lens L3 is a biconvex lens with positive refractive power
  • the object side surface S6 is a convex surface
  • the image side surface S7 is a convex surface.
  • the fourth lens L4 is a biconcave lens with negative refractive power
  • the object side surface S7 is a concave surface
  • the image side surface S8 is a concave surface.
  • the fifth lens L5 is a meniscus lens with positive refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface.
  • the third lens L3 and the fourth lens L4 may be cemented to form a cemented lens.
  • the optical lens may further include a stop ST0, and the stop ST0 may be disposed between the first lens L1 and the second lens L2 to improve imaging quality.
  • the stop ST0 may be arranged close to the image side surface S2 of the first lens L1.
  • the object side S1 and the image side S2 of the first lens L1 and the object side S9 and the image side S10 of the fifth lens L5 may be aspherical.
  • the optical lens may further include a filter OF having an object side surface S11 and an image side surface S12, and a protective glass CG having an object side surface S13 and an image side surface S14.
  • the filter OF can be used to correct color deviation
  • the protective glass CG can be used to protect the image sensor chip IMA located at the imaging surface S15. The light from the object sequentially passes through each surface S1 to S14 and is finally imaged on the imaging surface S15.
  • Table 28 shows the radius of curvature R, thickness T, refractive index Nd, and Abbe number Vd of each lens of the optical lens of Example 11.
  • Table 29 shows the conic coefficient K and the higher order coefficients A, B, C, D, and E that can be used for the aspheric lens surfaces S1, S2, S9, and S10 in Example 11.
  • Example 7 to Example 11 respectively satisfy the relationships shown in Table 30 below.
  • Table 11 the unit of SL, TTL, F, BFL, TL, H, F2-F4, F34, ⁇ CT, DSR3 is millimeter (mm), and the unit of FOV is degree (°).
  • Example Example 1 Example 2
  • Example 3 Example 4
  • Example 5 SL 22.9923 19.4742 20.5137 19.3421 21.0438 TTL 29.7086 24.9374 29.1204 27.7677 28.4036
  • BFL 3.5514 3.5514 4.2553 4.0514 6.3385 TL 26.1573 21.3861
  • 23.7163 22.0650 H 9.0020 9.0020 9.0020 7.7860 8.9320 FOV 31.2000 31.2000 31.2000 31.2000 31.2000 DSR3 3.9173 4.7599 4.7599 4.5332 4.8271 F2 12.9379 10.0130 14.9330 10.3878 15.0070 F 16.4190 16.0490 16.6324 14.0183 16.0040
  • FIG. 12 shows a schematic structural diagram of an optical lens according to Embodiment 12 of the present application.
  • the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 in order from the object side to the image side along the optical axis.
  • the first lens L1 is a meniscus lens with negative refractive power
  • the object side surface S1 is a concave surface
  • the image side surface S2 is a convex surface.
  • the second lens L2 is a biconvex lens with positive refractive power
  • the object side surface S4 is a convex surface
  • the image side surface S5 is a convex surface.
  • the third lens L3 is a biconvex lens with positive refractive power
  • the object side surface S6 is a convex surface
  • the image side surface S7 is a convex surface.
  • the fourth lens L4 is a biconcave lens with negative refractive power
  • the object side surface S7 is a concave surface
  • the image side surface S8 is a concave surface.
  • the fifth lens L5 is a meniscus lens with positive refractive power
  • the object side surface S9 is a convex surface
  • the image side surface S10 is a concave surface.
  • the third lens L3 and the fourth lens L4 may be cemented to form a cemented lens.
  • the optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2 to improve imaging quality.
  • the stop STO may be arranged close to the image side surface S2 of the first lens L1.
  • both the object side surface and the image side surface of the first lens L1 and the fifth lens L5 may be aspherical.
  • the optical lens may further include a filter L6 having an object side surface S11 and an image side surface S12 or a protective glass L6' (not shown), and the filter L6 can be used to correct color deviation and the protective glass L6' It can be used to protect the image sensor chip IMA located at the imaging surface.
  • the light from the object sequentially passes through each surface S1 to S12 and is finally imaged on the image sensor chip IMA.
  • Table 31 shows the radius of curvature R and thickness T of each lens of the optical lens of Example 12 (it should be understood that the thickness T in the row of S1 is the center thickness of the first lens L1, and the thickness T in the row of S2 is the first lens The air gap d12 between L1 and the second lens L2, and so on), refractive index Nd, and Abbe number Vd.
  • Table 32 shows the conic coefficient K and the higher-order coefficients A, B, C, D, and E of the aspheric lens surfaces S1, S2, S9, and S10 that can be used in Embodiment 12.
  • FIG. 13 shows a schematic structural diagram of an optical lens according to Embodiment 13 of the present application.
  • the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 in order from the object side to the image side along the optical axis.
  • the first lens L1 is a meniscus lens with negative refractive power
  • the object side surface S1 is a concave surface
  • the image side surface S2 is a convex surface.
  • the second lens L2 is a biconvex lens with positive refractive power
  • the object side surface S4 is a convex surface
  • the image side surface S5 is a convex surface.
  • the third lens L3 is a biconvex lens with positive refractive power
  • the object side surface S6 is a convex surface
  • the image side surface S7 is a convex surface.
  • the fourth lens L4 is a biconcave lens with negative refractive power
  • the object side surface S7 is a concave surface
  • the image side surface S8 is a concave surface.
  • the fifth lens L5 is a meniscus lens with positive refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a convex surface.
  • the third lens L3 and the fourth lens L4 may be cemented to form a cemented lens.
  • the optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2 to improve imaging quality.
  • the stop STO may be arranged close to the image side surface S2 of the first lens L1.
  • both the object side surface and the image side surface of the first lens L1 and the fifth lens L5 may be aspherical.
  • the optical lens may further include a filter L6 having an object side surface S11 and an image side surface S12 or a protective glass L6' (not shown), and the filter L6 can be used to correct color deviation and the protective glass L6' It can be used to protect the image sensor chip IMA located at the imaging surface.
  • the light from the object sequentially passes through each surface S1 to S12 and is finally imaged on the image sensor chip IMA.
  • Table 33 shows the radius of curvature R, thickness T, refractive index Nd, and Abbe number Vd of each lens of the optical lens of Example 13.
  • Table 34 shows the conic coefficients K and higher order coefficients A, B, C, D, and E that can be used for the aspheric lens surfaces S1, S2, S9, and S10 in Example 13.
  • FIG. 14 shows a schematic structural diagram of an optical lens according to Embodiment 14 of the present application.
  • the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 in order from the object side to the image side along the optical axis.
  • the first lens L1 is a meniscus lens with negative refractive power
  • the object side surface S1 is a concave surface
  • the image side surface S2 is a convex surface.
  • the second lens L2 is a biconvex lens with positive refractive power
  • the object side surface S4 is a convex surface
  • the image side surface S5 is a convex surface.
  • the third lens L3 is a biconcave lens with negative refractive power
  • the object side surface S6 is a concave surface
  • the image side surface S7 is a concave surface.
  • the fourth lens L4 is a biconvex lens with positive refractive power, and its object side surface S7 is a convex surface, and the image side surface S8 is a convex surface.
  • the fifth lens L5 is a meniscus lens with negative refractive power, and its object side surface S9 is a convex surface, and the image side surface S10 is a concave surface.
  • the third lens L3 and the fourth lens L4 may be cemented to form a cemented lens.
  • the optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2 to improve imaging quality.
  • the stop STO may be arranged close to the image side surface S2 of the first lens L1.
  • both the object side surface and the image side surface of the first lens L1 and the fifth lens L5 may be aspherical.
  • the optical lens may further include a filter L6 having an object side surface S11 and an image side surface S12 or a protective glass L6' (not shown), and the filter L6 can be used to correct color deviation and the protective glass L6' It can be used to protect the image sensor chip IMA located at the imaging surface.
  • the light from the object sequentially passes through each surface S1 to S12 and is finally imaged on the image sensor chip IMA.
  • Table 35 shows the radius of curvature R, thickness T, refractive index Nd, and Abbe number Vd of each lens of the optical lens of Example 14.
  • Table 36 shows the conic coefficient K and the higher order coefficients A, B, C, D, and E that can be used for the aspheric lens surfaces S1, S2, S9, and S10 in Example 14.
  • FIG. 15 shows a schematic structural diagram of an optical lens according to Embodiment 15 of the present application.
  • the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 in order from the object side to the image side along the optical axis.
  • the first lens L1 is a meniscus lens with negative refractive power
  • the object side surface S1 is a concave surface
  • the image side surface S2 is a convex surface.
  • the second lens L2 is a meniscus lens with positive refractive power
  • the object side surface S4 is a concave surface
  • the image side surface S5 is a convex surface.
  • the third lens L3 is a biconvex lens with positive refractive power
  • the object side surface S6 is a convex surface
  • the image side surface S7 is a convex surface.
  • the fourth lens L4 is a biconcave lens with negative refractive power
  • the object side surface S7 is a concave surface
  • the image side surface S8 is a concave surface.
  • the fifth lens L5 is a meniscus lens with positive refractive power
  • the object side surface S9 is a convex surface
  • the image side surface S10 is a concave surface.
  • the third lens L3 and the fourth lens L4 may be cemented to form a cemented lens.
  • the optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2 to improve imaging quality.
  • the stop STO may be arranged close to the image side surface S2 of the first lens L1.
  • both the object side surface and the image side surface of the first lens L1 and the fifth lens L5 may be aspherical.
  • the optical lens may further include a filter L6 having an object side surface S11 and an image side surface S12 or a protective glass L6' (not shown), and the filter L6 can be used to correct color deviation and the protective glass L6' It can be used to protect the image sensor chip IMA located at the imaging surface.
  • the light from the object sequentially passes through each surface S1 to S12 and is finally imaged on the image sensor chip IMA.
  • Table 37 shows the radius of curvature R, thickness T, refractive index Nd, and Abbe number Vd of each lens of the optical lens of Example 15.
  • Table 38 shows the conic coefficients K and higher order coefficients A, B, C, D, and E that can be used for the aspheric lens surfaces S1, S2, S9, and S10 in Example 15.
  • FIG. 16 shows a schematic structural diagram of an optical lens according to Embodiment 16 of the present application.
  • the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 in order from the object side to the image side along the optical axis.
  • the first lens L1 is a meniscus lens with negative refractive power
  • the object side surface S1 is a concave surface
  • the image side surface S2 is a convex surface.
  • the second lens L2 is a biconvex lens with positive refractive power
  • the object side surface S4 is a convex surface
  • the image side surface S5 is a convex surface.
  • the third lens L3 is a biconvex lens with positive refractive power
  • the object side surface S6 is a convex surface
  • the image side surface S7 is a convex surface.
  • the fourth lens L4 is a biconcave lens with negative refractive power
  • the object side surface S7 is a concave surface
  • the image side surface S8 is a concave surface.
  • the fifth lens L5 is a biconcave lens with negative refractive power
  • the object side surface S9 is a concave surface
  • the image side surface S10 is a concave surface.
  • the third lens L3 and the fourth lens L4 may be cemented to form a cemented lens.
  • the optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2 to improve imaging quality.
  • the stop STO may be arranged close to the image side surface S2 of the first lens L1.
  • both the object side surface and the image side surface of the first lens L1 and the fifth lens L5 may be aspherical.
  • the optical lens may further include a filter L6 having an object side surface S11 and an image side surface S12 or a protective glass L6' (not shown), and the filter L6 can be used to correct color deviation and the protective glass L6' It can be used to protect the image sensor chip IMA located at the imaging surface.
  • the light from the object sequentially passes through each surface S1 to S12 and is finally imaged on the image sensor chip IMA.
  • Table 39 shows the radius of curvature R, thickness T, refractive index Nd, and Abbe number Vd of each lens of the optical lens of Example 16.
  • Table 40 shows the conic coefficient K and the higher order coefficients A, B, C, D, and E that can be used for the aspheric lens surfaces S1, S2, S9, and S10 in Example 16.
  • Example 12 to Example 16 respectively satisfy the relationships shown in Table 41 below.
  • the unit of TTL, F, BFL, D, H, T45, F1, F2, F3, F4, and F34 is millimeter (mm)
  • the unit of FOV is degree (°).
  • Example Example 1 Example 2
  • Example 3 Example 4
  • Example 5 TTL 27.9596 30.2928 25.5226 30.3923 31.4199 BFL 3.8244 5.6251 5.7725 4.8427 4.7846 F 13.9718 16.3884 15.6175 15.9083 15.8325 D 3.8127 4.4300 4.3104 4.5223 4.4333 H 3.6210 4.4060 4.2990 4.3060 4.2930 FOV 15.0000 15.0000 15.0000 15.0000 F1 -155.8291 -176.1316 -1046.5305 -219.1800 -80.9456 F2 17.8750 17.3076 11.8835 17.8592 16.1392 F3 11.7604 12.0420 -7.1478 11.3457 13.4863 F4 -7.7009 -7.7856 7.8634 -6.4077 -10.0498 F34 -68.6532 -61.8313 129.4313 -32.3871 -229.3325 TTL/F 2.0011 1.8484 1.6342 1.9105 1.9845 BFL/TT
  • the present application also provides an imaging device, which may include the optical lens according to the above-mentioned embodiment 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 metal oxide semiconductor element (CMOS).
  • CMOS complementary metal oxide semiconductor element
  • the imaging device may be an independent imaging device such as a detection range camera, or an imaging module integrated on the detection range device.

Abstract

公开了一种光学镜头和包括该光学镜头的成像设备。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、第四透镜和第五透镜。其中，第一透镜可具有正光焦度或负光焦度，其物侧面为凸面，像侧面为凹面；第二透镜可具有正光焦度，其物侧面和像侧面均为凸面；第三透镜可具有正光焦度，其物侧面和像侧面均为凸面；第四透镜可具有负光焦度，其物侧面和像侧面均为凹面；以及第五透镜可具有正光焦度，其物侧面为凸面，像侧面为凹面。根据本申请的光学镜头，可实现小型化、高解像、大光圈、高亮度等有益效果中的至少一个。

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2019年4月4日提交至中国国家知识产权局(CNIPA)的专利申请号为201910271134.X的中国专利申请、于2019年6月27日提交至中国国家知识产权局的专利申请号为201910567420.0的中国专利申请以及于2019年9月2日提交至中国国家知识产权局的专利申请号为201910822855.5的中国专利申请的优先权和权益，上述中国专利申请通过引用整体并入本文。
技术领域
本申请涉及光学镜头和包括该光学镜头的成像设备，更具体地，本申请涉及一种包括五片或六片透镜的光学镜头及成像设备。
背景技术
随着主动驾驶或辅助驾驶等新兴技术的发展与普及，市场对车载镜头的需求越来越多，尤其需要在恶劣环境中，成像质量高的镜头。一方面，业界对镜头的解像力要求越来越高；另一方面，随着设备集成度的提高以及车载应用类光学镜头因安装位置限制等因素，业界对镜头尺寸也要求越来越小。普通的小尺寸镜头解像较差。传统的提升解像的方法需要增加镜片数量，这会增加镜头的成本，同时也会使镜头体积增大，不利于在小型化的集成环境中使用。
另外，出于安全性的考虑，通常车载应用类光学镜头对某些方面的光学参数要求更为严格，尤其是对光学镜头的解像力性能要求越来越高。随着车载镜头类相机像素的提高，芯片尺寸也不断地增大，因此搭配使用的车载类镜头在解像能力方面需要提升。在实际使用过程中，对镜头的周边亮度要求也较高。
因此，目前市场上需要一款高解像兼顾小型化、大光圈和高亮度等特点的光学镜头。
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。
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、第四透镜和第五透镜。其中，第一透镜可具有正光焦度或负光焦度，其物侧面为凸面，像侧面为凹面；第二透镜可具有正光焦度，其物侧面和像侧面均为凸面；第三透镜可具有正光焦度，其物侧面和像侧面均为凸面；第四透镜可具有负光焦度，其物侧面和像侧面均为凹面；以及第五透镜可具有正光焦度，其物侧面为凸面，像侧面为凹面。
在一个实施方式中，第一透镜可为非球面镜片。
在一个实施方式中，第二透镜可为非球面镜片。
在一个实施方式中，第三透镜与第四透镜可互相胶合形成胶合透镜。
在一个实施方式中，该光学镜头还可包括附加透镜，附加透镜可具有负光焦度，其物侧面为凸面，像侧面为凹面。
在一个实施方式中，附加透镜可设置在第一透镜与第二透镜之间。
在一个实施方式中，光学镜头的光学总长度TTL与光学镜头的整组焦距值F之间可满 足：TTL/F≤3。
在一个实施方式中，光学镜头的光学后焦BFL与光学镜头的透镜组长度TL之间可满足：BFL/TL≥0.1。
在一个实施方式中，第二透镜和第三透镜在光轴上的中心间距T23与光学镜头的光学总长度TTL之间可满足：T23/TTL≤0.01。
在一个实施方式中，第四透镜和第五透镜在光轴上的中心间距T45与光学镜头的光学总长度TTL之间可满足：T45/TTL≤0.1。
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≤0.06。
在一个实施方式中，第五透镜的焦距值F5与光学镜头的整组焦距值F之间可满足：F5/F≤4。
在一个实施方式中，第二透镜至第五透镜中的任一透镜的中心厚度dn(n＝2、3、4、5)与第二透镜至第五透镜中的任一透镜的中心厚度dm(m＝2、3、4、5)之间可满足：max{dn/dm}≤3。
在一个实施方式中，在光学镜头包括五片透镜的情况下，第一透镜的物侧面的中心曲率半径r1、第一透镜的像侧面的中心曲率半径r2以及第一透镜的中心厚度d1之间可满足：0.5≤|(r2+d1)/r1|≤1.5。
在一个实施方式中，第一透镜的像侧面的曲率半径r2与附加透镜的物侧面的曲率半径r3之间可满足：-0.15≤(r2-r3)/(r2+r3)≤1。
在一个实施方式中，第一透镜和附加透镜在光轴上的中心间距T1x与第一透镜和第二透镜在光轴上的中心间距T12之间可满足：0.01≤T1x/T12≤0.15。
本申请的另一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、第四透镜和第五透镜。其中，第一透镜可具有正光焦度或负光焦度；第二透镜、第三透镜和第五透镜均可具有正光焦度；第四透镜可具有负光焦度；第三透镜与第四透镜可互相胶合形成胶合透镜；以及光学镜头的光学总长度TTL与光学镜头的整组焦距值F之间可满足：TTL/F≤3。
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，第二透镜的物侧面和像侧面均可为凸面。
在一个实施方式中，第三透镜的物侧面和像侧面均可为凸面。
在一个实施方式中，第四透镜的物侧面和像侧面均可为凹面。
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，该光学镜头还可包括附加透镜，附加透镜可具有负光焦度，其物侧面为凸面，像侧面为凹面。
在一个实施方式中，附加透镜可设置在第一透镜与第二透镜之间。
在一个实施方式中，第一透镜可为非球面镜片。
在一个实施方式中，第二透镜可为非球面镜片。
在一个实施方式中，光学镜头的光学后焦BFL与光学镜头的透镜组长度TL之间可满足：BFL/TL≥0.1。
在一个实施方式中，第二透镜和第三透镜在光轴上的中心间距T23与光学镜头的光学总长度TTL之间可满足：T23/TTL≤0.01。
在一个实施方式中，第四透镜和第五透镜在光轴上的中心间距T45与光学镜头的光学总 长度TTL之间可满足：T45/TTL≤0.1。
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≤0.06。
在一个实施方式中，第五透镜的焦距值F5与光学镜头的整组焦距值F之间可满足：F5/F≤4。
在一个实施方式中，第二透镜至第五透镜中的任一透镜的中心厚度dn(n＝2、3、4、5)与第二透镜至第五透镜中的任一透镜的中心厚度dm(m＝2、3、4、5)之间可满足：max{dn/dm}≤3。
在一个实施方式中，在光学镜头包括五片透镜的情况下，第一透镜的物侧面的中心曲率半径r1、第一透镜的像侧面的中心曲率半径r2以及第一透镜的中心厚度d1之间可满足：0.5≤|(r2+d1)/r1|≤1.5。
在一个实施方式中，第一透镜的像侧面的曲率半径r2与附加透镜的物侧面的曲率半径r3之间可满足：-0.15≤(r2-r3)/(r2+r3)≤1。
在一个实施方式中，第一透镜和附加透镜在光轴上的中心间距T1x与第一透镜和第二透镜在光轴上的中心间距T12之间可满足：0.01≤T1x/T12≤0.15。
本申请的又一方面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。
本申请的又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包括：第一透镜、第二透镜、第三透镜、第四透镜和第五透镜，所述第一透镜具有负光焦度；所述第二透镜具有正光焦度，其物侧面为凸面，其像侧面为凸面；所述第三透镜具有正光焦度，其物侧面为凸面，其像侧面为凸面；所述第四透镜具有负光焦度，其物侧面为凹面，其像侧面为凹面；以及所述第五透镜具有光焦度。
在一个实施方式中，所述第一透镜的物侧面为凸面，像侧面为凹面。
在一个实施方式中，所述第一透镜的物侧面为凹面，像侧面为凸面。
在一个实施方式中，所述第五透镜的物侧面为凸面，像侧面为凹面。
在一个实施方式中，所述第五透镜的物侧面为凹面，像侧面为凸面。
在一个实施方式中，所述第三透镜和所述第四透镜胶合形成胶合透镜。
在一个实施方式中，所述第一透镜和所述第二透镜之间设置有光阑。
在一个实施方式中，所述第一透镜、所述第二透镜和所述第五透镜中至少有一个透镜为非球面透镜。
在一个实施方式中，所述光学镜头中的各个透镜均由玻璃材料制成。
在一个实施方式中，所述光学镜头的总长度TTL与所述光学镜头的总有效焦距F满足：TTL/F≤2.2。
在一个实施方式中，所述第二透镜的物侧面到所述光学镜头的成像面的距离SL与所述光学镜头的总长度TTL满足：0.66≤SL/TTL≤1.24。
在一个实施方式中，所述第二透镜在所述光轴上的中心厚度CT2与所述第一透镜的像侧面至所述第二透镜的物侧面在所述光轴上的距离T12满足：CT2/T12≤1.26。
在一个实施方式中，所述第二透镜的有效焦距F2与所述光学镜头的总有效焦距F满足：0.5≤F2/F≤1.5。
在一个实施方式中，所述第四透镜的有效焦距F4与所述第三透镜的有效焦距F3满足： |F4/F3|≤2。
在一个实施方式中，所述光学镜头的总有效焦距F与所述第三透镜和所述第四透镜的组合焦距F34满足：|F/F34|≤1.5。
在一个实施方式中，所述光学镜头中所有透镜在所述光轴上的中心厚度之和ΣCT与所述光学镜头的总长度TTL满足：ΣCT/TTL≤0.67。
在一个实施方式中，所述第三透镜的有效焦距F3与所述光学镜头的总有效焦距F满足：0.1≤F3/F≤1.3。
在一个实施方式中，所述光学镜头的总长度TTL、所述光学镜头的最大视场角对应的像高H以及所述光学镜头的最大视场角FOV满足：TTL/H/FOV≤0.30。
在一个实施方式中，所述光学镜头的最大视场角FOV、所述光学镜头的总有效焦距F以及所述光学镜头的最大视场角对应的像高H满足：(FOV×F)/H≤65。
在一个实施方式中，所述第二透镜的像侧面至所述第三透镜的物侧面在所述光轴上的距离T23与所述光学镜头的总长度TTL满足：T23/TTL≤0.03。
在一个实施方式中，所述光学镜头的总有效焦距F与所述光学镜头的最大视场角对应的像高H满足：F/H≥1.5。
在一个实施方式中，所述光阑到所述第二透镜的距离DSR3与所述第一透镜的像侧面至所述第二透镜的物侧面在所述光轴上的距离T12满足：DSR3/T12≥0.42。
在一个实施方式中，所述第五透镜的像侧面至所述光学镜头的成像面的距离BFL与所述第一透镜的物侧面至所述第五透镜的像侧面的距离TL满足：BFL/TL≥0.10。
在一个实施方式中，所述第二透镜的折射率Nd2满足：1.5≤Nd2。
在一个实施方式中，所述第三透镜的折射率Nd3与所述第四透镜的折射率Nd4满足：Nd3/Nd4≤1.5。
在一个实施方式中，所述第四透镜的阿贝数Vd4与所述第三透镜的阿贝数Vd3满足：Vd4/Vd3≤1.1。
本申请的又一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包括：第一透镜、第二透镜、第三透镜、第四透镜和第五透镜，所述第一透镜具有负光焦度；所述第二透镜具有正光焦度；所述第三透镜具有正光焦度；所述第四透镜具有负光焦度；以及所述第五透镜具有光焦度，其中：所述光学镜头的总长度TTL与所述光学镜头的总有效焦距F满足：TTL/F≤2.2。
在一个实施方式中，所述第一透镜的物侧面为凸面，像侧面为凹面。
在一个实施方式中，所述第一透镜的物侧面为凹面，像侧面为凸面。
在一个实施方式中，所述第二透镜的物侧面为凸面，像侧面为凸面。
在一个实施方式中，所述第三透镜的物侧面为凸面，像侧面为凸面。
在一个实施方式中，所述第四透镜的物侧面为凹面，像侧面为凹面。
在一个实施方式中，所述第五透镜的物侧面为凸面，像侧面为凹面。
在一个实施方式中，所述第五透镜的物侧面为凹面，像侧面为凸面。
在一个实施方式中，所述第三透镜和所述第四透镜胶合形成胶合透镜。
在一个实施方式中，所述第一透镜和所述第二透镜之间设置有光阑。
在一个实施方式中，所述第一透镜、所述第二透镜和所述第五透镜中至少有一个透镜为非球面透镜。
在一个实施方式中，所述光学镜头中的各个透镜均由玻璃材料制成。
在一个实施方式中，所述第二透镜的物侧面到所述光学镜头的成像面的距离SL与所述 光学镜头的总长度TTL满足：0.66≤SL/TTL≤1.24。
在一个实施方式中，所述第二透镜在所述光轴上的中心厚度CT2与所述第一透镜的像侧面至所述第二透镜的物侧面在所述光轴上的距离T12满足：CT2/T12≤1.26。
在一个实施方式中，所述第二透镜的有效焦距F2与所述光学镜头的总有效焦距F满足：0.5≤F2/F≤1.5。
在一个实施方式中，所述第四透镜的有效焦距F4与所述第三透镜的有效焦距F3满足：|F4/F3|≤2。
在一个实施方式中，所述光学镜头的总有效焦距F与所述第三透镜和所述第四透镜的组合焦距F34满足：|F/F34|≤1.5。
在一个实施方式中，所述光学镜头中所有透镜在所述光轴上的中心厚度之和ΣCT与所述光学镜头的总长度TTL满足：ΣCT/TTL≤0.67。
在一个实施方式中，所述第三透镜的有效焦距F3与所述光学镜头的总有效焦距F满足：0.1≤F3/F≤1.3。
在一个实施方式中，所述光学镜头的总长度TTL、所述光学镜头的最大视场角对应的像高H以及所述光学镜头的最大视场角FOV满足：TTL/H/FOV≤0.30。
在一个实施方式中，所述光学镜头的最大视场角FOV、所述光学镜头的总有效焦距F以及所述光学镜头的最大视场角对应的像高H满足：(FOV×F)/H≤65。
在一个实施方式中，所述第二透镜的像侧面至所述第三透镜的物侧面在所述光轴上的距离T23与所述光学镜头的总长度TTL满足：T23/TTL≤0.03。
在一个实施方式中，所述光学镜头的总有效焦距F与所述光学镜头的最大视场角对应的像高H满足：F/H≥1.5。
在一个实施方式中，所述光阑到所述第二透镜的距离DSR3与所述第一透镜的像侧面至所述第二透镜的物侧面在所述光轴上的距离T12满足：DSR3/T12≥0.42。
在一个实施方式中，所述第五透镜的像侧面至所述光学镜头的成像面的距离BFL与所述第一透镜的物侧面至所述第五透镜的像侧面的距离TL满足：BFL/TL≥0.10。
在一个实施方式中，所述第二透镜的折射率Nd2满足：1.5≤Nd2。
在一个实施方式中，所述第三透镜的折射率Nd3与所述第四透镜的折射率Nd4满足：Nd3/Nd4≤1.5。
在一个实施方式中，所述第四透镜的阿贝数Vd4与所述第三透镜的阿贝数Vd3满足：Vd4/Vd3≤1.1。
本申请的又一方面提供了一种电子设备，该电子设备可包括根据上述实施方式的光学镜头。
本申请的又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包括：第一透镜、第二透镜、第三透镜、第四透镜和第五透镜，第一透镜具有负光焦度，其物侧面为凹面，像侧面为凸面；第二透镜具有正光焦度；第三透镜具有光焦度；第四透镜具有光焦度；以及第五透镜具有光焦度。
在一个实施方式中，第三透镜和第四透镜胶合形成胶合透镜。
在一个实施方式中，第二透镜的物侧面为凸面，像侧面为凸面。
在一个实施方式中，第二透镜的物侧面为凹面，像侧面为凸面。
在一个实施方式中，第三透镜的物侧面为凸面，像侧面为凸面。
在一个实施方式中，第三透镜的物侧面为凹面，像侧面为凹面。
在一个实施方式中，第四透镜的物侧面为凸面，像侧面为凸面。
在一个实施方式中，第四透镜的物侧面为凹面，像侧面为凹面。
在一个实施方式中，第五透镜的物侧面为凸面，像侧面为凹面。
在一个实施方式中，第五透镜的物侧面为凹面，像侧面为凸面。
在一个实施方式中，第五透镜的物侧面为凹面，像侧面为凹面。
在一个实施方式中，第一透镜和第五透镜均为非球面透镜。
在一个实施方式中，第三透镜和第四透镜的组合焦距F34与光学镜头的总有效焦距F满足：0.2≤|F34/F|≤6.8。
在一个实施方式中，第一透镜的物侧面至光学镜头的成像面在光轴上的距离TTL与光学镜头的总有效焦距F满足：TTL/F≤3。
在一个实施方式中，第五透镜的像侧面至光学镜头的成像面在光轴上的距离BFL与第一透镜的物侧面至光学镜头的成像面在光轴上的距离TTL满足：BFL/TTL≥0.10。
在一个实施方式中，光学镜头的最大视场角FOV、与最大视场角FOV对应的第一透镜的物侧面的最大通光口径D以及与最大视场角FOV对应的像高H满足：D/H/FOV≤0.08。
在一个实施方式中，第三透镜的有效焦距F3与第四透镜的有效焦距F4满足：0.6≤|F3/F4|≤2.2。
在一个实施方式中，第一透镜的有效焦距F1与光学镜头的总有效焦距F满足：4≤|F1/F|。
在一个实施方式中，第一透镜至第五透镜中任意两个透镜在光轴上的中心厚度的比值不大于3.5。
在一个实施方式中，第一透镜的有效焦距F1与第二透镜的有效焦距F2满足：4≤|F1/F2|。
在一个实施方式中，第二透镜的物侧面的曲率半径R4与第二透镜的像侧面的曲率半径R5满足：|(R4-R5)/(R4+R5)|≤8.5。
在一个实施方式中，第一透镜的物侧面的曲率半径R1与第一透镜的像侧面的曲率半径R2满足：0.5≤|R1/R2|≤1.5。
在一个实施方式中，第一透镜和第二透镜在光轴上的间隔距离T12与第一透镜的物侧面至光学镜头的成像面在光轴上的距离TTL满足：0.02≤T12/TTL≤0.33。
在一个实施方式中，第四透镜和第五透镜在光轴上的间隔距离T45与第一透镜的物侧面至光学镜头的成像面在光轴上的距离TTL满足：0.10≤T45/TTL≤0.60。
本申请的又一方面提供了一种光学镜头，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、第四透镜和第五透镜，其特征在于：第一透镜具有负光焦度；第二透镜具有正光焦度；第三透镜具有光焦度；第四透镜具有光焦度；以及第五透镜具有光焦度，其中：第一透镜的物侧面至光学镜头的成像面在光轴上的距离TTL与光学镜头的总有效焦距F满足：TTL/F≤3。
本申请的又一方面提供了一种电子设备，可包括根据上述实施方式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。
本申请采用了五片透镜，通过优化设置各透镜的形状、光焦度等，使光学镜头具有高解像、小型化、低成本、小CRA(Chief Ray Angle，主光线倾斜角)、温度适应性能佳等至少一个有益效果。
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；
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。
图12为示出根据本申请实施例12的光学镜头的结构示意图；
图13为示出根据本申请实施例13的光学镜头的结构示意图；
图14为示出根据本申请实施例14的光学镜头的结构示意图；
图15为示出根据本申请实施例15的光学镜头的结构示意图；以及
图16为示出根据本申请实施例16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。
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可包括例如五个具有光焦度的透镜，即第一透镜、第二透镜、第三透镜、第四透镜和第五透镜。这五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)。
第一透镜可具有正光焦度或负光焦度，其物侧面可为凸面，像侧面可为凹面。第一透镜可设置为凸面朝向物侧的弯月形形状，并通过第一透镜的特殊形状设置，以有利于收集光线，提高成像品质。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。
第二透镜可具有正光焦度，其物侧面和像侧面均可为凸面。第二透镜设置为正透镜，并选用非球面镜片，以修正第一透镜的色差，提高解像能力，同时将第一透镜收集进来的光线进行汇聚，传递至后方镜片。
第三透镜可具有正光焦度，其物侧面和像侧面均可为凸面。
第四透镜可具有负光焦度，其物侧面和像侧面均可为凹面。
第五透镜可具有正光焦度，其物侧面可为凸面，像侧面可为凹面。第五透镜可将第三透镜汇聚的光线进行进一步汇聚，调整光线，使光线走势平稳过渡至成像面。
在示例性实施方式中，可在例如第一透镜与第二透镜之间设置用于限制光束的光阑。当光阑设置于第一透镜与第二透镜之间时，可有效收缩入射光线，提高周边与中心的亮度比。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，该光学镜头还可包括一个附加透镜，该附加透镜可具有负光焦度，其物侧面可为凸面，像侧面可为凹面。
在示例性实施方式中，该附加透镜可设置在第一透镜与第二透镜之间。
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五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，可通过将第三透镜的像侧面与第四透镜的物侧面胶合，而将第三透镜和第四透镜组合成胶合透镜，以有利于提高解像，矫正像差、缩短光学总长度TTL。在该胶合透镜中，排布在前的第三透镜具有正光焦度，排布在后的第四透镜具有负光焦度，这样的设置可将经第一透镜/第二透镜的光线进一步平缓过渡至成像面，减小系统总长。另外，该双胶合的透镜组自身可以消色差，减小公差敏感度，也可残留部分色差以平衡系统的色差。
在示例性实施方式中，光学镜头的光学总长度TTL与光学镜头的整组焦距值F之间可满足：TTL/F≤3，更理想地，可进一步满足TTL/F≤2.5。满足条件式TTL/F≤3，可保证小型化特性。
在示例性实施方式中，光学镜头的光学后焦BFL与光学镜头的透镜组长度TL之间可满足：BFL/TL≥0.1，更理想地，可进一步满足BFL/TL≥0.12。通过满足条件式BFL/TL≥0.1，可在实现小型化的基础上，实现后焦长，有利于光学镜头的组装。
在示例性实施方式中，第二透镜和第三透镜在光轴上的中心间距T23与光学镜头的光学总长度TTL之间可满足：T23/TTL≤0.01，更理想地，可进一步满足T23/TTL≤0.005。满足条件式T23/TTL≤0.01，可使得光学镜头的结构紧凑，有利于减小镜头整体长度。
在示例性实施方式中，第四透镜和第五透镜在光轴上的中心间距T45与光学镜头的光学总长度TTL之间可满足：T45/TTL≤0.1，更理想地，可进一步满足T45/TTL≤0.05。满足条件式T45/TTL≤0.1，可使得光学镜头的结构紧凑，有利于减小镜头整体长度。
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≤0.06，更理想地，可进一步满足D/H/FOV≤0.05。满足条件式D/H/FOV≤0.06，可实现前端小口径的特性。
在示例性实施方式中，第五透镜的焦距值F5与光学镜头的整组焦距值F之间可满足：F5/F≤4，更理想地，可进一步满足F5/F≤3.8。通过第五透镜短焦距的设置，有助于收光，保证通光量。
在示例性实施方式中，第二透镜至第五透镜中的任一透镜的中心厚度dn(n＝2、3、4、5)与第二透镜至第五透镜中的任一透镜的中心厚度dm(m＝2、3、4、5)之间可满足：max{dn/dm}≤3，更理想地，可进一步满足max{dn/dm}≤2.5。通过设置使得第二透镜至第五透镜中的镜片的中心厚度相接近，可有助于高低温下整体光学镜头的光线偏折变化小，温度性能佳。
在示例性实施方式中，当镜头包括五个透镜时，第一透镜物侧面的中心曲率半径r1、第一透镜像侧面的中心曲率半径r2以及第一透镜的中心厚度d1之间可满足：0.5≤|(r2+d1)/r1|≤1.5，更理想地，可进一步满足0.7≤|(r2+d1)/r1|≤1.2。通过镜片的特殊形状设计，可有利于收集光线，提升成像品质。
在示例性实施方式中，第一透镜像侧面的曲率半径r2与附加透镜物侧面的曲率半径r3之间可满足：-0.15≤(r2-r3)/(r2+r3)≤1，更理想地，可进一步满足-0.1≤(r2-r3)/(r2+r3)≤0.5。满足条件式-0.15≤(r2-r3)/(r2+r3)≤1，可校正该光学系统的像差，并保证从第一透镜出射的光线入射到附加透镜的第一个面(即，物侧面)时，入射光线较为平缓，从而降低该光学系统的公差敏感度。
在示例性实施方式中，第一透镜和附加透镜在光轴上的中心间距T1x与第一透镜和第二透镜在光轴上的中心间距T12之间可满足：0.01≤T1x/T12≤0.15，更理想地，可进一步满足0.03≤T1x/T12≤0.12。通过设置使得附加透镜与第一透镜的距离较近，从而使得第一透镜与第二透镜之间的光线能够平缓过渡，且可进一步提高镜头解像能力。
在示例性实施方式中，光学镜头的光圈数FNO可满足FNO≥2.0，以保证大光圈的特性。
在示例性实施方式中，光学镜头的周边光照度REILL可满足：REILL≥70％。通过第一透镜采用非球面镜片，可增大光线的入射角，有利于提高周边光照度。
在示例性实施方式中，根据本申请的光学镜头可采用球面镜片或非球面镜片。例如，第一透镜和/或第二透镜可为非球面镜片，以矫正系统的像差，提高解像。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。应理解的是，为了提高成像质量，根据本申请的光学镜头还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。
根据本申请的上述实施方式的光学镜头通过合理分配各透镜光焦度、面型、各透镜的中心厚度以及各透镜之间的轴上间距等，使用5片或6片透镜就能够实现高解像，兼顾镜头体积小、敏感度低，生产良率高以及低成本的要求。同时该光学镜头具有长焦距、大光圈、高亮度、成像质量较高等特点。因此，根据本申请的上述实施方式的光学镜头能够具有小型化、高解像、大光圈、高亮度等有益效果中的至少一个，可更好地符合例如车载镜头的应用要求。
本领域技术人员应当理解，上文中使用的光学镜头的光学总长度TTL是指从第一透镜物侧面的中心至成像面中心的轴上距离；光学镜头的光学后焦BFL是指从最后一个透镜第五透镜像侧面的中心至成像面中心的轴上距离；以及光学镜头的透镜组长度TL是指从第一透镜物侧面的中心至最后一个透镜第五透镜像侧面中心的轴上距离。
根据另一方面，第一透镜具可有负光焦度并具有弯月形状，其可以具有凸出的物侧面和凹入的像侧面，或者具有凹入的物侧面和凸出的像侧面。第一透镜的这种光焦度和面型配置可减小入射光线在迎击面上的入射角，有利于将更多的光线收集进入光学系统，从而增加光通量，并实现较高的成像质量。
第二透镜可具有正光焦度，其物侧面可为凸面，并且其像侧面可为凸面。第三透镜可具有正光焦度，其物侧面可为凸面，并且其像侧面可为凸面。本申请提供的光学镜头中的第二透镜和第三透镜均为具有正光焦度的双凸透镜，其物侧面和像侧面均为凸面，双凸透镜的采用能够压缩入射光线的角度，实现光线平缓过渡，有利于减小后端透镜口径，使得光线能正确平稳地进入后方光学系统，提高解像质量。
第四透镜为具有负光焦度的双凹透镜，其物侧面和像侧面均为凹面。此外，第三透镜和第四透镜的面型和光焦度组合可将前端入射的光线进行有效汇聚，使其平缓过渡至第五透镜，有利于减小后端透镜口径并增大镜头焦距。
第五透镜为具有光焦度的弯月透镜，其可以具有凸出的物侧面和凹入的像侧面，或者具有凹入的物侧面和凸出的像侧面。第五透镜可矫正系统的场曲和像散以及大角度视场的高阶像差。
根据本申请实施方式，第一透镜和第二透镜之间设置有用于限制光束的光阑，进一步提高光学镜头的成像质量。当将光阑设置于第一透镜与第二透镜之间时，可有利于有效收束进入光学系统的光线，减小透镜口径。在本申请实施方式中，光阑可设置在第一透镜的像侧面附近处。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五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。
根据本申请实施方式，第三透镜和第四透镜胶合形成胶合透镜。具有正光焦度的第三透镜在前，负光焦度的第四透镜在后，采用胶合方式可具有以下优点中的至少一个：减小两个 透镜之间的空气间隔，从而减小系统总长；减少第三透镜与第四透镜之间的组立部件，从而减少工序，降低成本；降低透镜单元因在组立过程中产生的倾斜/偏芯等公差敏感度问题，提高生产良率；减少透镜间反射引起光量损失，提升照度；进一步减小场曲，有效矫正光学镜头的轴外点像差。这样的胶合设计分担了系统的整体色差矫正，有效校正像差，以提高解像力，且使得光学系统整体紧凑，满足小型化要求。
根据本申请实施方式，光学镜头的总长度TTL与光学镜头的总有效焦距F满足：TTL/F≤2.2，例如，TTL/F≤2.0。合理控制光学镜头的总长度与总有效焦距之间的比例关系，有利于保证系统的小型化特性。
根据本申请实施方式，第二透镜的物侧面到光学镜头的成像面的距离SL与光学镜头的总长度TTL满足：0.66≤SL/TTL≤1.24，例如0.68≤SL/TTL≤1.22。合理控制光学镜头中第二透镜的物侧面到光学镜头的成像面的距离与光学镜头的总长度之间的比例关系，有利于矫正系统畸变和慧差，降低系统公差敏感度。
根据本申请实施方式，第二透镜在光轴上的中心厚度CT2与第一透镜的像侧面至第二透镜的物侧面在光轴上的距离T12满足：CT2/T12≤1.26，例如，CT2/T12≤1.22。合理分配透镜间距，有利于减小透镜口径，减小镜头体积，在提升系统解像力和画面整体亮度的同时，可有效降低成本，实现系统小型化。
根据本申请实施方式，第二透镜的有效焦距F2与光学镜头的总有效焦距F满足：0.5≤F2/F≤1.5，例如，0.6≤F2/F≤1.0。合理分配第二透镜的有效焦距与光学镜头的总有效焦距之间的比例关系，可有效提升系统解像力，减小光学镜头在高低温环境下的后焦漂移。
根据本申请实施方式，第四透镜的有效焦距F4与第三透镜的有效焦距F3满足：|F4/F3|≤2，例如，|F4/F3|≤1。合理分配胶合透镜中第四透镜和第三透镜的焦距，控制焦距比值在合理范围内，有利于矫正系统色差，降低镜头公差敏感性。
根据本申请实施方式，光学镜头的总有效焦距F与第三透镜和第四透镜的组合焦距F34满足：|F/F34|≤1.5，例如，|F/F34|≤1.2。合理控制光学镜头的总有效焦距与第三透镜和第四透镜的组合焦距的比例关系，有助于减小系统的总体长度。
根据本申请实施方式，光学镜头中所有透镜在光轴上的中心厚度之和ΣCT与光学镜头的总长度TTL满足：ΣCT/TTL≤0.67，例如，ΣCT/TTL≤0.65。合理设置光学镜头中各个透镜的中心厚度，并控制所有透镜的中心厚度之和与光学镜头的总长度之间的比值在合理的数值范围内，有利于提高透镜的有效利用率。
根据本申请实施方式，第三透镜的有效焦距F3与光学镜头的总有效焦距F满足：0.1≤F3/F≤1.3，例如，0.2≤F3/F≤1.2。控制第三透镜的有效焦距与光学镜头的总有效焦距的比值在合理的数值范围内，有利于提升系统解像力，实现光学镜头小型化。
根据本申请实施方式，光学镜头的总长度TTL、光学镜头的最大视场角对应的像高H以及光学镜头的最大视场角FOV满足：TTL/H/FOV≤0.30，例如，TTL/H/FOV≤0.20。合理设置上述三者之间的相互关系，易于实现光学镜头小型化。
根据本申请实施方式，光学镜头的最大视场角FOV、光学镜头的总有效焦距F以及光学镜头的最大视场角对应的像高H满足：(FOV×F)/H≤65，例如，(FOV×F)/H≤60。合理设置上述三者之间的相互关系，易于减小系统畸变。
根据本申请实施方式，第二透镜的像侧面至第三透镜的物侧面在光轴上的距离T23与光学镜头的总长度TTL满足：T23/TTL≤0.03，例如，T23/TTL≤0.005。合理控制第二透镜的像侧面至第三透镜的物侧面在光轴上的距离与光学镜头的总长度之间的比例关系，有利于减小透镜口径，减小镜头体积，在提升系统解像力和画面整体亮度的同时，可有效降低成本，实 现系统小型化。
根据本申请实施方式，光学镜头的总有效焦距F与光学镜头的最大视场角对应的像高H满足：F/H≥1.5，例如，F/H≥1.6。合理增大透镜的焦距，有利于系统对远处物体清晰成像。
根据本申请实施方式，光阑到第二透镜的距离DSR3与第一透镜的像侧面至第二透镜的物侧面在光轴上的距离T12满足：DSR3/T12≥0.42，例如，DSR3/T12≥0.44。合理设置上述两者之间的相互关系，有利于提升系统解像力，易于实现光学镜头小型化。
根据本申请实施方式，第五透镜的像侧面至光学镜头的成像面的距离BFL与第一透镜的物侧面至第五透镜的像侧面的距离TL满足：BFL/TL≥0.10，例如，BFL/TL≥0.12。合理控制光学镜头的后焦长与光学镜头的透镜组长度的比例关系，在实现系统小型化的基础上，有利于模组的组装。其中，光学镜头的后焦长即BFL；光学镜头的透镜组长度即TL。
根据本申请实施方式，第二透镜的折射率Nd2满足：1.5≤Nd2，例如，1.55≤Nd2。合理设置第二透镜的折射率，有利于减小透镜口径、提高成像质量、降低系统公差敏感性、提高生产良率、降低生产成本。
根据本申请实施方式，第三透镜的折射率Nd3与第四透镜的折射率Nd4满足：Nd3/Nd4≤1.5，例如，Nd3/Nd4≤1.2。合理设置胶合透镜中第三透镜和第四透镜的折射率比例关系，有利于矫正系统色差，控制光线走向，减小镜头后端口径。
根据本申请实施方式，第四透镜的阿贝数Vd4与第三透镜的阿贝数Vd3满足：Vd4/Vd3≤1.1，例如，Vd4/Vd3≤0.8。合理设置胶合透镜中第四透镜和第三透镜的阿贝数比例关系，有利于矫正光学镜头的轴向色差和垂轴色差，提高解像质量。
根据本申请实施方式，第一透镜、第二透镜和第五透镜中至少有一个透镜为非球面透镜。非球面透镜的特点是：从透镜中心到周边曲率是连续变化的。与从透镜中心到周边有恒定曲率的球面透镜不同，非球面透镜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。采用非球面透镜后，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，第一透镜采用非球面透镜可进一步提高解像质量。此外，第一透镜、第二透镜和第五透镜可均采用非球面透镜。如此有助于矫正系统像差，提升解像力。
根据本申请实施方式，光学镜头中的各个透镜均由玻璃材料制成。通常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。此外，采用玻璃镜片可保证在不同温度下光学性能的稳定性。
根据本申请的上述实施方式的光学镜头通过优化设置透镜形状，合理分配光焦度，合理选取透镜材料，使用5片架构就能够实现高解像(8M以上)，同时能够兼顾镜头小型化、敏感度低，生产良率高、低成本等要求。该光学镜头CRA较小，避免光线后端出射时打到镜筒上产生杂光，又可以很好的匹配例如车载芯片，不会产生偏色和暗角现象。该光学镜头温度性能佳，高低温下成像效果变化小，像质稳定，有利于车辆使用的大部分环境。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。
根据又一方面，第一透镜具有负光焦度，其物侧面为凹面，像侧面为凸面；第二透镜具有正光焦度；第三透镜具有光焦度；第四透镜具有光焦度；以及第五透镜具有光焦度。如此通过合理配置各透镜的光焦度和面型，可提高光学镜头的成像品质。
第一透镜可具有负光焦度并具有朝向像方的弯月形状，其物侧面可为凹面，并且其像侧面可为凸面。第一透镜的这种光焦度和面型配置既有利于光线平稳进入后方光学系统，提高镜头解像力，又有利于光学系统收集大视场角的入射光线，保证尽量多的光线进入，从而增 加光通量，提升照度。
第二透镜可具有正光焦度，其物侧面和像侧面可均为凸面，或其物侧面可为凹面，同时其像侧面为凸面。根据本申请实施方式，第一透镜与第二透镜之间可设置有光阑。具有正光焦度的第二透镜可设置在光阑后，与光阑相配合，有利于光线汇聚，减小光学镜筒口径及镜筒长度，实现镜头小型化。
第三透镜和第四透镜可配合设置。例如，第三透镜可具有正光焦度，其物侧面和像侧面可均为凸面。与此同时，第四透镜可具有负光焦度，其物侧面和像侧面可均为凹面。具有正光焦度的第三透镜在前，具有负光焦度的第四透镜在后，有利于将经过第二透镜的光线平缓过渡至第四透镜，减小光学系统总体长度。
再例如，第三透镜可具有负光焦度，其物侧面和像侧面可均为凹面。与此同时，第四透镜可具有正光焦度，其物侧面和像侧面可均为凸面。具有负光焦度的第三透镜在前，具有正光焦度的第四透镜在后，有利于实现第四透镜对前方发散光线的有效汇聚。
第五透镜可具有正光焦度或负光焦度。当第五透镜具有正光焦度时，其物侧面可为凸面，同时其像侧面可为凹面，或其物侧面为凹面，同时其像侧面为凸面。当第五透镜具有负光焦度时，其物侧面可为凸面，同时其像侧面可为凹面，或其物侧面和像侧面同时为凹面。根据第一透镜至第四透镜的不同设置，选择第五透镜的光焦度和面型，以使得透镜间相配合，提高系统解像力。
在示例性实施方式中，光阑设置在第一透镜与第二透镜之间用于限制光束以进一步提高光学镜头的成像质量。光阑有利于有效收束进入光学系统的光线，缩短系统总体长度，减小透镜口径。在本申请实施方式中，光阑可设置在第一透镜的像侧面的附近处或光阑靠近第一透镜的像侧面。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五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。根据本申请的光学镜头还可包括设置在第五透镜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，第三透镜和第四透镜胶合形成胶合透镜。其中，具有正光焦度的第三透镜与具有负光焦度的第四透镜相组合，或具有负光焦度的第三透镜与具有正光焦度的第四透镜相组合。第三透镜和第四透镜相胶合，既可以将经过第三透镜的光线平缓过渡至成像面，减小系统总体长度，又可以矫正光学系统的各种像差，在系统结构紧凑的前提下，提高镜头分辨率，优化畸变、CRA(Chief Ray Angle，主光线倾斜角)等光学性能。上述透镜间采用胶合方式还具有以下优点中的至少一个：减少自身色差，降低公差敏感度，通过残留的部分色差以平衡系统的整体色差；减小两个透镜之间的空气间隔，从而减小系统总长；减少透镜之间的组立部件，从而减少工序，降低成本；降低透镜单元因在组立过程中产生的倾斜/偏芯等公差敏感度问题，提高生产良率；减少透镜间反射引起光量损失，提升照度；进一步减小场曲，有效矫正光学镜头的轴外点像差。这样的胶合设置分担了系统的整体色差矫正，有效校正像差，以提高解像力，且使得光学系统整体紧凑，满足小型化要求。
在示例性实施方式中，第三透镜和第四透镜的组合焦距F34与光学镜头的总有效焦距F满足：0.2≤|F34/F|≤6.8，优选地，0.5≤|F34/F|≤6.5。设置第三透镜和第四透镜的组合焦距与光学镜头的总有效焦距的比值在合理的数值范围内，有效控制第三透镜和第四透镜的组合焦距 的大小，有利于光学系统实现热补偿。
在示例性实施方式中，第一透镜的物侧面至光学镜头的成像面在光轴上的距离TTL与光学镜头的总有效焦距F满足：TTL/F≤3，优选地，TTL/F≤2.5。在本申请中，第一透镜的物侧面至光学镜头的成像面在光轴上的距离也称作光学镜头的总长度。合理控制光学镜头的总长度与总有效焦距之间的比例关系，有利于实现系统小型化。
在示例性实施方式中，第五透镜的像侧面至光学镜头的成像面在光轴上的距离BFL与第一透镜的物侧面至光学镜头的成像面在光轴上的距离TTL满足：BFL/TTL≥0.10，优选地，BFL/TTL≥0.12。在本申请中，第五透镜的像侧面至光学镜头的成像面在光轴上的距离也称作光学镜头的后焦长。合理控制光学镜头的后焦长与光学镜头的总长度的比例关系，减小光学镜头的后焦长，有利于对小型化模组的组装。减小光学镜头的总长度，尤其是减小透镜组长度，有利于光学系统结构紧凑，降低透镜对MTF(Modulation Transfer Function，调制传递函数)的敏感度，提高生产良率，降低生产成本。其中透镜组长度即第一透镜的物侧面至第五透镜的像侧面在光轴上的距离。
在示例性实施方式中，光学镜头的最大视场角FOV、与最大视场角FOV对应的第一透镜的物侧面的最大通光口径D以及与最大视场角FOV对应的像高H满足：D/H/FOV≤0.08，优选地，D/H/FOV≤0.10。合理设置上述三者之间的相互关系，易于减小光学镜头的前端口径，实现镜头小型化。
在示例性实施方式中，第三透镜的有效焦距F3与第四透镜的有效焦距F4满足：0.6≤|F3/F4|≤2.2，优选地，0.8≤|F3/F4|≤2.0。合理设置胶合透镜中第三透镜的有效焦距与第四透镜的有效焦距的比例关系，使得第三透镜的有效焦距和第四透镜的有效焦距相近，有利于光线平缓过渡，矫正系统色差。
在示例性实施方式中，第一透镜的有效焦距F1与光学镜头的总有效焦距F满足：4≤|F1/F|，优选地，5≤|F1/F|。合理设置第一透镜的有效焦距与光学镜头的总有效焦距的比例关系，有利于更多的光线平稳地进入光学系统，增加系统照度。
在示例性实施方式中，第一透镜至第五透镜中任意两个透镜在光轴上的中心厚度的比值不大于3.5。设置第一透镜至第五透镜中任意两个透镜在光轴上的中心厚度的比值中的最大值小于等于3.5，有利于均匀各透镜的中心厚度，使得各个透镜的作用稳定，实现镜头在高低温环境下光线变化小、温度性能佳。
在示例性实施方式中，第一透镜的有效焦距F1与第二透镜的有效焦距F2满足：4≤|F1/F2|，优选地，5≤|F1/F2|。设置第一透镜的有效焦距与第二透镜的有效焦距的比值在较大的数值范围内，使得第一透镜和第二透镜的焦距相差较大，有利于光学系统集中光线，提升像质。
在示例性实施方式中，第二透镜的物侧面的曲率半径R4与第二透镜的像侧面的曲率半径R5满足：|(R4-R5)/(R4+R5)|≤8.5，优选地，|(R4-R5)/(R4+R5)|≤8。合理设置第二透镜的物侧面的曲率半径与第二透镜的像侧面的曲率半径的相互关系，既有利于校正光学系统的像差，又有利于保证光线平缓通过第二透镜，从而降低光学系统的公差敏感度。
在示例性实施方式中，第一透镜的物侧面的曲率半径R1与第一透镜的像侧面的曲率半径R2满足：0.5≤|R1/R2|≤1.5，优选地，0.6≤|R1/R2|≤1.0。设置第一透镜的物侧面的曲率半径与第一透镜的像侧面的曲率半径的比值在合理的数值范围内，使得第一透镜的物侧面的曲率半径与像侧面的曲率半径相近，有利于光线平缓进入光学系统，以提高镜头解像力。
在示例性实施方式中，第一透镜和第二透镜在光轴上的间隔距离T12与第一透镜的物侧面至光学镜头的成像面在光轴上的距离TTL满足：0.02≤T12/TTL≤0.33，优选地， 0.05≤T12/TTL≤0.30。合理设置第一透镜和第二透镜在光轴上的间隔距离与光学镜头的总长度的比例关系，以有效控制第一透镜和第二透镜在光轴上的间隔距离，有利于提高镜头解像力。
在示例性实施方式中，第四透镜和第五透镜在光轴上的间隔距离T45与第一透镜的物侧面至光学镜头的成像面在光轴上的距离TTL满足：T45/TTL≤0.20，优选地，0.05≤T45/TTL≤0.15。在另一些示例性实施方式中，T45和TTL也可以满足0.10≤T45/TTL≤0.60，优选地，0.15≤T45/TTL≤0.55。合理设置第四透镜和第五透镜在光轴上的间隔距离与光学镜头的总长度的比例关系，以有效控制第四透镜和第五透镜在光轴上的间隔距离，有利于提高镜头解像力。
在示例性实施方式中，第一透镜至第五透镜均可为非球面透镜。非球面透镜的特点是：从透镜中心到周边曲率是连续变化的。与从透镜中心到周边有恒定曲率的球面透镜不同，非球面透镜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。采用非球面透镜后，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。非球面透镜的设置有助于矫正系统像差，提升解像力。优选地，第一透镜和第五透镜均为非球面透镜。第五透镜为非球面透镜，有利于前方光学系统中的光线走势变平缓，提高解像力。
根据本申请的上述实施方式的光学镜头通过优化透镜形状，采用胶合透镜设置，合理分配光焦度，适当设置非球面镜面数量，实现高清成像。同时上述光学镜头能够兼顾小型化、高解像、低成本、温度适应性能好等特点，满足车载后视镜头小型化、高解像的应用要求。
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四个透镜为例进行了描述，但是该光学镜头不限于包括五个或六个透镜。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和第五透镜L5。
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为具有正光焦度的双凸透镜，其物侧面S4和像侧面S5均为凸面。
第三透镜L3为具有正光焦度的双凸透镜，其物侧面S6和像侧面S7均为凸面。第四透镜L4为具有负光焦度的双凹透镜，其物侧面S7和像侧面S8均为凹面。其中，第三透镜L3和第四透镜L4互相胶合形成胶合透镜。
第五透镜L5为具有正光焦度的弯月透镜，其物侧面S9为凸面，像侧面S10为凹面。
第一透镜L1和第二透镜L2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S11和像侧面S12的滤光片L6和/或具有物侧面S13和像侧面S14的保护透镜L7。滤光片L6可用于校正色彩偏差。保护透镜L7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S14并最终成像在成像面IMA上。
在本实施例的光学镜头中，可在第一透镜L1与第二透镜L2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(应理解，T 1为第一透 镜L1的中心厚度，T 2为第一透镜L1与第二透镜L2之间的空气间隔，以此类推)、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)。
面号 曲率半径R 厚度T 折射率Nd 阿贝数Vd
1 10.4964 3.4715 1.59 61.16
2 7.1246 6.7983    
STO 无穷 0.1000    
4 21.9898 4.9977 1.59 61.16
5 -12.5930 0.1000    
6 11.8571 2.8742 1.50 81.59
7 -21.6696 4.8000 1.67 32.18
8 7.0180 0.7613    
9 10.3460 5.2900 1.75 35.02
10 14.2351 0.5000    
11 无穷 0.5500 1.52 64.21
12 无穷 2.0000    
13 无穷 0.5000 1.52 64.21
14 无穷 1.1098    
IMA 无穷 -    
表1
本实施例采用了五片透镜作为示例，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、大光圈、高亮度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 PCTCN2020083224-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S1-S2和S4-S5的圆锥系数k以及高次项系数A、B、C、D和E。
面号 K A B C D E
1 -0.7753 -2.6132E-04 -5.0403E-06 5.4604E-08 -2.1957E-09 2.7354E-11
2 -0.5435 -5.0086E-04 -1.1586E-05 1.2826E-07 -5.8298E-09 1.1735E-10
4 0.0000 -2.0722E-04 -5.2275E-06 -1.3882E-07 1.3956E-09 -1.6988E-10
5 0.0000 -9.9322E-05 -2.7354E-06 -1.2137E-07 1.8727E-09 -4.6946E-11
表2
下表3给出了实施例1的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、光学镜头的最大视场角所对应的像高H、第一透镜L1的物侧面S1的中心曲率半径r1、第一透镜L1的中心厚度d1、第一透镜L1的像侧面S2的中心曲率半径r2、第二透镜L2与第三透镜L3在光轴上的中心间距T23、第四透镜L4与第五透镜L5在光轴上的中心间距T45、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)、光学镜头的光学后焦BFL(即，最后一个透镜第五透镜L5的像侧面S10的中心至成像面IMA的轴上距离)、光学镜头的透镜组长度TL(即，从第一透镜L1的物侧面S1中心至最后一个透镜第五透镜L5的像侧面S10中心的轴上 距离)、光学镜头的整组焦距值F、第五透镜L5的焦距值F5、光学镜头的光圈数FNO、第二透镜L2至第五透镜L5各自的中心厚度d2-d5以及光学镜头的周边光照度REILL。
D(mm) 11.8112 F(mm) 16.4803
H(mm) 31.2000 F5(mm) 31.6912
FOV(°) 9.0040 FNO 1.9983
r1(mm) 10.4964 d2(mm) 4.9977
d1(mm) 3.4715 d3(mm) 2.8742
r2(mm) 7.1246 d4(mm) 4.8000
T23(mm) 0.1000 d5(mm) 5.2900
T45(mm) 0.7613 REILL 0.8000
TTL(mm) 33.8529    
BFL(mm) 4.6598    
TL(mm) 29.1931    
表3
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第一透镜L1、第二透镜L2、第三透镜L3、第四透镜L4和第五透镜L5。
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为具有正光焦度的双凸透镜，其物侧面S4和像侧面S5均为凸面。
第三透镜L3为具有正光焦度的双凸透镜，其物侧面S6和像侧面S7均为凸面。第四透镜L4为具有负光焦度的双凹透镜，其物侧面S7和像侧面S8均为凹面。其中，第三透镜L3和第四透镜L4互相胶合形成胶合透镜。
第五透镜L5为具有正光焦度的弯月透镜，其物侧面S9为凸面，像侧面S10为凹面。
第一透镜L1和第二透镜L2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S11和像侧面S12的滤光片L6和/或具有物侧面S13和像侧面S14的保护透镜L7。滤光片L6可用于校正色彩偏差。保护透镜L7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S14并最终成像在成像面IMA上。
在本实施例的光学镜头中，可在第一透镜L1与第二透镜L2之间设置光阑STO以提高成像质量。
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S1-S2和S4-S5的圆锥系数k以及高次项系数A、B、C、D和E。下表6给出了实施例2的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、光学镜头的最大视场角所对应的像高H、第一透镜L1的物侧面S1的中心曲率半径r1、第一透镜L1的中心厚度d1、第一透镜L1的像侧面S2的中心曲率半径r2、第二透镜L2与第三透镜L3在光轴上的中心间距T23、第四透镜L4与第五透镜L5在光轴上的中心间距T45、光学镜头的光学总长度TTL、光学镜头的光学后焦BFL、光学 镜头的透镜组长度TL、光学镜头的整组焦距值F、第五透镜L5的焦距值F5、光学镜头的光圈数FNO、第二透镜L2至第五透镜L5各自的中心厚度d2-d5以及光学镜头的周边光照度REILL。
面号 曲率半径R 厚度T 折射率Nd 阿贝数Vd
1 10.4956 3.4377 1.59 61.16
2 7.1244 6.8007    
STO 无穷 0.1000    
4 22.1347 5.0000 1.59 61.16
5 -12.5192 0.1000    
6 11.8833 2.8782 1.50 81.59
7 -21.4162 4.8000 1.67 32.18
8 7.0570 0.7613    
9 10.4380 5.2900 1.75 35.02
10 14.3501 0.5000    
11 无穷 0.5500 1.52 64.21
12 无穷 2.0000    
13 无穷 0.5000 1.52 64.21
14 无穷 1.1323    
IMA 无穷 -    
表4
面号 K A B C D E
1 -0.7753 -2.6377E-04 -5.0004E-06 5.1806E-08 -2.3218E-09 3.2511E-11
2 -0.5435 -4.9580E-04 -1.1727E-05 1.2197E-07 -5.6165E-09 1.2706E-10
4 0.0000 -2.0567E-04 -5.1327E-06 -1.3783E-07 1.3012E-09 -1.6459E-10
5 0.0000 -9.7421E-05 -2.6929E-06 -1.1870E-07 2.0190E-09 -5.9585E-11
表5
D(mm) 11.8911 F(mm) 16.4703
H(mm) 31.2000 F5(mm) 32.1117
FOV(°) 8.9900 FNO 1.9952
r1(mm) 10.4956 d2(mm) 5.0000
d1(mm) 3.4377 d3(mm) 2.8782
r2(mm) 7.1244 d4(mm) 4.8000
T23(mm) 0.1000 d5(mm) 5.2900
T45(mm) 0.7613 REILL 0.7630
TTL(mm) 33.8502    
BFL(mm) 4.6823    
TL(mm) 29.1679    
表6
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。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第一透镜L1、第二透镜L2、第三透镜L3、第四透镜L4和第五透镜L5。
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为具有正光焦度的双凸透镜，其物侧面S4和像侧面S5均为凸面。
第三透镜L3为具有正光焦度的双凸透镜，其物侧面S6和像侧面S7均为凸面。第四透镜L4为具有负光焦度的双凹透镜，其物侧面S7和像侧面S8均为凹面。其中，第三透镜L3和第四透镜L4互相胶合形成胶合透镜。
第五透镜L5为具有正光焦度的弯月透镜，其物侧面S9为凸面，像侧面S10为凹面。
第一透镜L1和第二透镜L2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S11和像侧面S12的滤光片L6和/或具有物侧面S13和像侧面S14的保护透镜L7。滤光片L6可用于校正色彩偏差。保护透镜L7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S14并最终成像在成像面IMA上。
在本实施例的光学镜头中，可在第一透镜L1与第二透镜L2之间设置光阑STO以提高成像质量。
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S1-S2和S4-S5的圆锥系数k以及高次项系数A、B、C、D和E。下表9给出了实施例3的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、光学镜头的最大视场角所对应的像高H、第一透镜L1的物侧面S1的中心曲率半径r1、第一透镜L1的中心厚度d1、第一透镜L1的像侧面S2的中心曲率半径r2、第二透镜L2与第三透镜L3在光轴上的中心间距T23、第四透镜L4与第五透镜L5在光轴上的中心间距T45、光学镜头的光学总长度TTL、光学镜头的光学后焦BFL、光学镜头的透镜组长度TL、光学镜头的整组焦距值F、第五透镜L5的焦距值F5、光学镜头的光圈数FNO、第二透镜L2至第五透镜L5各自的中心厚度d2-d5以及光学镜头的周边光照度REILL。
面号 曲率半径R 厚度T 折射率Nd 阿贝数Vd
1 9.4775 1.6831 1.59 61.16
2 6.3033 5.3732    
STO 无穷 -0.1730    
4 10.7406 4.7164 1.59 61.16
5 -14.3999 0.1000    
6 20.5356 3.2947 1.50 81.59
7 -13.9256 4.6944 1.67 32.18
8 7.2325 0.7613    
9 9.8042 5.0000 1.75 35.02
10 13.3262 0.5000    
11 无穷 0.5500 1.52 64.21
12 无穷 2.5000    
13 无穷 0.5000 1.52 64.21
14 无穷 0.5021    
IMA 无穷 -    
表7
面号 K A B C D E
1 -4.1084 -7.3713E-04 -2.2276E-05 8.9991E-07 -2.3214E-08 2.9046E-10
2 -1.7756 -1.0961E-03 -2.0793E-05 1.5105E-06 -4.8231E-08 6.9288E-10
4 0.0000 -2.7953E-05 -2.6147E-07 4.9780E-09 6.7265E-10 6.5113E-12
5 0.0000 2.3960E-04 1.5436E-06 2.4560E-08 -5.5382E-10 3.4112E-11
表8
D(mm) 8.4973 F(mm) 16.2759
H(mm) 31.2000 F5(mm) 30.5514
FOV(°) 9.0500 FNO 2.0497
r1(mm) 9.4775 d2(mm) 4.7164
d1(mm) 1.6831 d3(mm) 3.2947
r2(mm) 6.3033 d4(mm) 4.6944
T23(mm) 0.1000 d5(mm) 5.0000
T45(mm) 0.7613 REILL 0.7057
TTL(mm) 30.0021    
BFL(mm) 4.5521    
TL(mm) 25.4500    
表9
实施例4
以下参照图4描述了根据本申请实施例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、附加透镜Lx、第二透镜L2、第三透镜L3、第四透镜L4和第五透镜L5。
第一透镜L1为具有正光焦度的弯月透镜，其物侧面S1为凸面，像侧面S2为凹面。其中，第一透镜L1为非球面镜片，其物侧面和像侧面均为非球面。
附加透镜Lx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。
第二透镜L2为具有正光焦度的双凸透镜，其物侧面S6和像侧面S7均为凸面。
第三透镜L3为具有正光焦度的双凸透镜，其物侧面S8和像侧面S9均为凸面。第四透镜L4为具有负光焦度的双凹透镜，其物侧面S9和像侧面S10均为凹面。其中，第三透镜L3和第四透镜L4互相胶合形成胶合透镜。
第五透镜L5为具有正光焦度的弯月透镜，其物侧面S11为凸面，像侧面S12为凹面。
可选地，该光学镜头还可包括具有物侧面S13和像侧面S14的滤光片L6和/或具有物侧面S15和像侧面S16的保护透镜L7。滤光片L6可用于校正色彩偏差。保护透镜L7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，可在附加透镜Lx与第二透镜L2之间设置光阑STO以提高成像质量。
下表10示出了实施例4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11示出了可用于实施例4中非球面透镜表面S1-S2的圆锥系数k以及高次项系数A、B、C、D和E。下表12给出了实施例4的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、光学镜头的最大视场角所对应的像高H、第一透镜L1的物侧面S1的中心曲率半径r1、第一透镜L1的像侧面S2的中心曲率半径r2、附加透镜Lx的物侧面S3的中心曲率半径r3、第一透镜L1的中心厚度d1、第一透镜L1与第二透镜L2在光轴上的中心间距T12、第二透镜L2与第三透镜L3在光轴上的中心间距T23、第四透镜L4与第五透 镜L5在光轴上的中心间距T45、第一透镜L1与附加透镜Lx在光轴上的中心间距T1x、光学镜头的光学总长度TTL、光学镜头的光学后焦BFL、光学镜头的透镜组长度TL、光学镜头的整组焦距值F、第五透镜L5的焦距值F5、光学镜头的光圈数FNO、第二透镜L2至第五透镜L5各自的中心厚度d2-d5以及光学镜头的周边光照度REILL。
面号 曲率半径R 厚度T 折射率Nd 阿贝数Vd
1 10.4956 3.5000 1.59 61.16
2 13.5248 0.5959    
3 20.3750 0.6520 1.65 33.84
4 8.0569 5.5063    
STO 无穷 0.0000    
6 27.2596 6.3974 1.74 44.90
7 -13.7841 0.1000    
8 9.5146 3.3054 1.50 81.59
9 -17.1735 3.2279 1.67 32.18
10 7.1010 0.7613    
11 13.9471 5.2316 1.59 61.25
12 20.3652 0.5000    
13 无穷 0.5500 1.52 64.21
14 无穷 2.0000    
15 无穷 0.5000 1.52 64.21
16 无穷 1.2397    
IMA 无穷      
表10
面号 K A B C D E
1 -0.0318 -1.4341E-04 -2.4664E-06 -2.9068E-08 -1.5591E-09 2.4521E-11
2 -0.0325 -1.3774E-04 -3.8464E-06 -1.1905E-07 1.5967E-09 3.4658E-11
表11
D(mm) 11.9037 BFL(mm) 4.7879
H(mm) 31.2000 TL(mm) 29.2796
FOV(°) 9.0140 F(mm) 16.4387
r1(mm) 10.4956 F5(mm) 57.4569
r2(mm) 13.5248 FNO 2.0037
r3(mm) 20.3750 d2(mm) 6.3974
d1(mm) 3.5000 d3(mm) 3.3054
T12(mm) 6.7542 d4(mm) 3.2279
T23(mm) 0.1000 d5(mm) 5.2316
T45(mm) 0.7613 REILL 0.8141
T1x(mm) 0.5959    
TTL(mm) 34.0675    
表12
实施例5
以下参照图5描述了根据本申请实施例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、附加透镜Lx、第二透镜L2、第三透镜L3、第四透镜L4和第五透镜L5。
第一透镜L1为具有正光焦度的弯月透镜，其物侧面S1为凸面，像侧面S2为凹面。其中，第一透镜L1为非球面镜片，其物侧面和像侧面均为非球面。
附加透镜Lx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。
第二透镜L2为具有正光焦度的双凸透镜，其物侧面S6和像侧面S7均为凸面。
第三透镜L3为具有正光焦度的双凸透镜，其物侧面S8和像侧面S9均为凸面。第四透镜L4为具有负光焦度的双凹透镜，其物侧面S9和像侧面S10均为凹面。其中，第三透镜L3和第四透镜L4互相胶合形成胶合透镜。
第五透镜L5为具有正光焦度的弯月透镜，其物侧面S11为凸面，像侧面S12为凹面。
可选地，该光学镜头还可包括具有物侧面S13和像侧面S14的滤光片L6和/或具有物侧面S15和像侧面S16的保护透镜L7。滤光片L6可用于校正色彩偏差。保护透镜L7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，可在附加透镜Lx与第二透镜L2之间设置光阑STO以提高成像质量。
下表13示出了实施例5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14示出了可用于实施例5中非球面透镜表面S1-S2的圆锥系数k以及高次项系数A、B、C、D和E。下表15给出了实施例5的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、光学镜头的最大视场角所对应的像高H、第一透镜L1的物侧面S1的中心曲率半径r1、第一透镜L1的像侧面S2的中心曲率半径r2、附加透镜Lx的物侧面S3的中心曲率半径r3、第一透镜L1的中心厚度d1、第一透镜L1与第二透镜L2在光轴上的中心间距T12、第二透镜L2与第三透镜L3在光轴上的中心间距T23、第四透镜L4与第五透镜L5在光轴上的中心间距T45、第一透镜L1与附加透镜Lx在光轴上的中心间距T1x、光学镜头的光学总长度TTL、光学镜头的光学后焦BFL、光学镜头的透镜组长度TL、光学镜头的整组焦距值F、第五透镜L5的焦距值F5、光学镜头的光圈数FNO、第二透镜L2至第五透镜L5各自的中心厚度d2-d5以及光学镜头的周边光照度REILL。
面号 曲率半径R 厚度T 折射率Nd 阿贝数Vd
1 10.4956 3.5000 1.59 61.2
2 13.1776 0.4610    
3 22.1628 1.6857 1.65 33.8
4 8.4036 5.9242    
STO 无穷 0.0000    
6 25.0004 4.7891 1.74 44.9
7 -14.9738 0.1000    
8 9.2999 3.3107 1.50 81.6
9 -18.7163 3.2584 1.67 32.2
10 6.8644 0.7613    
11 13.2091 5.2316 1.59 61.2
12 22.0033 0.5000    
13 无穷 0.5500 1.52 64.2
14 无穷 2.0000    
15 无穷 0.5000 1.52 64.2
16 无穷 1.0183    
IMA 无穷      
表13
面号 K A B C D E
1 0.0004 -1.3384E-04 -2.6712E-06 -1.7541E-08 -9.6131E-10 9.0607E-12
2 0.0004 -1.3375E-04 -3.7233E-06 -7.0089E-08 8.4213E-10 7.9111E-12
表14
D(mm) 12.4815 BFL(mm) 4.5683
H(mm) 31.2000 TL(mm) 29.0220
FOV(°) 9.0120 F(mm) 16.4930
r1(mm) 10.4956 F5(mm) 45.7838
r2(mm) 13.1776 FNO 2.0058
r3(mm) 22.1628 d2(mm) 4.7891
d1(mm) 3.5000 d3(mm) 3.3107
T12(mm) 8.0709 d4(mm) 3.2584
T23(mm) 0.1000 d5(mm) 5.2316
T45(mm) 0.7613 REILL 0.7912
T1x(mm) 0.4610    
TTL(mm) 33.5903    
表15
实施例6
以下参照图6描述了根据本申请实施例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、附加透镜Lx、第二透镜L2、第三透镜L3、第四透镜L4和第五透镜L5。
第一透镜L1为具有正光焦度的弯月透镜，其物侧面S1为凸面，像侧面S2为凹面。其中，第一透镜L1为非球面镜片，其物侧面和像侧面均为非球面。
附加透镜Lx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。
第二透镜L2为具有正光焦度的双凸透镜，其物侧面S6和像侧面S7均为凸面。
第三透镜L3为具有正光焦度的双凸透镜，其物侧面S8和像侧面S9均为凸面。第四透镜L4为具有负光焦度的双凹透镜，其物侧面S9和像侧面S10均为凹面。其中，第三透镜L3和第四透镜L4互相胶合形成胶合透镜。
第五透镜L5为具有正光焦度的弯月透镜，其物侧面S11为凸面，像侧面S12为凹面。
可选地，该光学镜头还可包括具有物侧面S13和像侧面S14的滤光片L6和/或具有物侧面S15和像侧面S16的保护透镜L7。滤光片L6可用于校正色彩偏差。保护透镜L7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，可在附加透镜Lx与第二透镜L2之间设置光阑STO以提高成像质量。
下表16示出了实施例6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17示出了可用于实施例6中非球面透镜表面S1-S2和S6-S9的圆锥系数k以及高次项系数A、B、C、D和E。下表18给出了实施例6的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、光学镜头的最大视场角所对应的像高H、第一透镜L1的 物侧面S1的中心曲率半径r1、第一透镜L1的像侧面S2的中心曲率半径r2、附加透镜Lx的物侧面S3的中心曲率半径r3、第一透镜L1的中心厚度d1、第一透镜L1与第二透镜L2在光轴上的中心间距T12、第二透镜L2与第三透镜L3在光轴上的中心间距T23、第四透镜L4与第五透镜L5在光轴上的中心间距T45、第一透镜L1与附加透镜Lx在光轴上的中心间距T1x、光学镜头的光学总长度TTL、光学镜头的光学后焦BFL、光学镜头的透镜组长度TL、光学镜头的整组焦距值F、第五透镜L5的焦距值F5、光学镜头的光圈数FNO、第二透镜L2至第五透镜L5各自的中心厚度d2-d5以及光学镜头的周边光照度REILL。
面号 曲率半径R 厚度T 折射率Nd 阿贝数Vd
1 10.4722 3.5186 1.59 61.2
2 13.2506 0.5946    
3 22.1551 1.3857 1.65 33.8
4 8.4083 5.8238    
STO 无穷 0.0000    
6 24.9496 5.3148 1.74 44.9
7 -14.9725 0.1000    
8 9.3020 3.3013 1.50 81.6
9 -18.3727 3.2505 1.67 32.2
10 6.8862 0.7613    
11 12.9631 5.2122 1.59 61.2
12 20.6728 0.5000    
13 无穷 0.5500 1.52 64.2
14 无穷 2.0000    
15 无穷 0.5000 1.52 64.2
16 无穷 1.0093    
IMA 无穷      
表16
面号 K A B C D E
1 0.0113 -1.3434E-04 -2.6808E-06 -1.6689E-08 -9.8452E-10 7.6969E-12
2 0.0187 -1.3446E-04 -3.8942E-06 -7.7239E-08 9.4557E-10 5.0344E-12
表17
D(mm) 12.4815 BFL(mm) 4.5593
H(mm) 31.2000 TL(mm) 29.2625
FOV(°) 9.0080 F(mm) 16.4845
r1(mm) 10.4722 F5(mm) 46.9918
r2(mm) 13.2506 FNO 2.0042
r3(mm) 22.1551 d2(mm) 5.3148
d1(mm) 3.5186 d3(mm) 3.3013
T12(mm) 7.8041 d4(mm) 3.2505
T23(mm) 0.1000 d5(mm) 5.2122
T45(mm) 0.7613 REILL 0.7954
T1x(mm) 0.5946    
TTL(mm) 33.8218    
表18
综上，实施例1至实施例6分别满足以下表19所示的关系。
条件式/实施例 1 2 3 4 5 6
D/H/FOV 0.0420 0.0424 0.0301 0.0423 0.0444 0.0444
(r2+d1)/r1 1.0095 1.0063 0.8427 / / /
T23/TTL 0.0030 0.0030 0.0033 0.0029 0.0030 0.0030
T45/TTL 0.0225 0.0225 0.0254 0.0223 0.0227 0.0225
TTL/F 2.0541 2.0552 1.8433 2.0724 2.0366 2.0517
BFL/TL 0.1596 0.1605 0.1789 0.1635 0.1574 0.1558
F5/F 1.9230 1.9497 1.8771 3.4952 2.7760 2.8507
max{dn/dm} 1.8405 1.8379 1.5176 1.9819 1.6056 1.6351
(r2-r3)/(r2+r3) / / / -0.2021 -0.2542 -0.2515
T1x/T12 / / / 0.0882 0.0571 0.0762
表19
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，光学镜头沿着光轴由物侧至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和第五透镜L5。
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为具有正光焦度的双凸透镜，其物侧面S4为凸面，像侧面S5为凸面。第三透镜L3为具有正光焦度的双凸透镜，其物侧面S6为凸面，像侧面S7为凸面。第四透镜L4为具有负光焦度的双凹透镜，其物侧面S7为凹面，像侧面S8为凹面。第五透镜L5为具有负光焦度的弯月透镜，其物侧面S9为凹面，像侧面S10为凸面。第三透镜L3和第四透镜L4可胶合组成胶合透镜。
光学镜头还可包括光阑ST0，光阑ST0可设置在第一透镜L1与第二透镜L2之间，以提高成像质量。例如，光阑ST0可靠近第一透镜L1的像侧面S2设置。
在本实施例中，第一透镜L1的物侧面S1和像侧面S2以及第二透镜L2的物侧面S4和像侧面S5均可以是非球面的。
可选地，该光学镜头还可包括具有物侧面S11和像侧面S12的滤光片OF以及具有物侧面S13和像侧面S14的保护玻璃CG。滤光片OF可用于校正色彩偏差，保护玻璃CG可用于保护位于成像面S15处的图像传感芯片IMA。来自物体的光依序穿过各表面S1至S14并最终成像在成像面S15上。
表20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(应理解，S1所在行的厚度T为第一透镜L1的中心厚度，S2所在行的厚度T为第一透镜L1与第二透镜L2之间的空气间隔，以此类推)、折射率Nd以及阿贝数Vd。
Figure PCTCN2020083224-appb-000002
Figure PCTCN2020083224-appb-000003
表20
下表21示出了可用于实施例7中的非球面透镜表面S1、S2、S4和S5的圆锥系数K以及高次项系数A、B、C、D和E。
面号 K A B C D E
S1 0.1476 -1.1945E-03 -1.6293E-05 5.3488E-07 -1.3831E-08 2.0354E-10
S2 0.0325 -1.6669E-03 -2.3607E-05 9.5918E-07 -2.6409E-08 3.0588E-10
S4 0.3973 -1.2124E-04 -3.0830E-06 -1.6891E-07 3.0946E-09 -1.1695E-10
S5 0.0179 1.9149E-05 -1.7611E-06 -5.9220E-08 -5.9614E-10 -1.4531E-11
表21
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。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7相似的描述。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，光学镜头沿着光轴由物侧至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和第五透镜L5。
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为具有正光焦度的双凸透镜，其物侧面S4为凸面，像侧面S5为凸面。第三透镜L3为具有正光焦度的双凸透镜，其物侧面S6为凸面，像侧面S7为凸面。第四透镜L4为具有负光焦度的双凹透镜，其物侧面S7为凹面，像侧面S8为凹面。第五透镜L5为具有正光焦度的弯月透镜，其物侧面S9为凹面，像侧面S10为凸面。第三透镜L3和第四透镜L4可胶合组成胶合透镜。
光学镜头还可包括光阑ST0，光阑ST0可设置在第一透镜L1与第二透镜L2之间，以提高成像质量。例如，光阑ST0可靠近第二透镜L2的物侧面S4设置。
在本实施例中，第一透镜L1的物侧面S1和像侧面S2、第二透镜L2的物侧面S4和像侧面S5以及第五透镜L5的物侧面S9和像侧面S10均可以是非球面的。
可选地，该光学镜头还可包括具有物侧面S11和像侧面S12的滤光片OF以及具有物侧面S13和像侧面S14的保护玻璃CG。滤光片OF可用于校正色彩偏差，保护玻璃CG可用于保护位于成像面S15处的图像传感芯片IMA。来自物体的光依序穿过各表面S1至S14并最终成像在成像面S15上。
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。
Figure PCTCN2020083224-appb-000004
Figure PCTCN2020083224-appb-000005
表22
下表23给出了可用于实施例8中非球面透镜表面S1、S2、S4、S5、S9和S10的圆锥系数K以及高次项系数A、B、C、D和E。
面号 K A B C D E
S1 -0.1723 -1.6573E-03 -2.3491E-05 5.3021E-07 -4.3832E-09 6.3671E-11
S2 -0.1911 -3.0158E-03 -3.4045E-05 1.3726E-06 -1.7734E-08 -3.5995E-10
S4 -42.3238 3.9503E-03 -3.7269E-04 2.3639E-05 -8.1263E-07 1.1885E-08
S5 0.5336 4.2256E-04 -1.2620E-06 1.1565E-06 -7.0687E-08 2.2078E-09
S9 13.2218 -4.6476E-04 -1.4235E-05 3.6188E-06 -5.1263E-07 2.7988E-08
S10 2.6343 -3.6322E-04 -5.4850E-06 6.0978E-07 -4.0848E-08 1.4371E-09
表23
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，光学镜头沿着光轴由物侧至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和第五透镜L5。
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为具有正光焦度的双凸透镜，其物侧面S4为凸面，像侧面S5为凸面。第三透镜L3为具有正光焦度的双凸透镜，其物侧面S6为凸面，像侧面S7为凸面。第四透镜L4为具有负光焦度的双凹透镜，其物侧面S7为凹面，像侧面S8为凹面。第五透镜L5为具有负光焦度的弯月透镜，其物侧面S9为凹面，像侧面S10为凸面。第三透镜L3和第四透镜L4可胶合组成胶合透镜。
光学镜头还可包括光阑ST0，光阑ST0可设置在第一透镜L1与第二透镜L2之间，以提高成像质量。例如，光阑ST0可靠近第一透镜L1的像侧面S2设置。
在本实施例中，第一透镜L1的物侧面S1和像侧面S2以及第五透镜L5的物侧面S9和像侧面S10均可以是非球面的。
可选地，该光学镜头还可包括具有物侧面S11和像侧面S12的滤光片OF以及具有物侧面S13和像侧面S14的保护玻璃CG。滤光片OF可用于校正色彩偏差，保护玻璃CG可用于保护位于成像面S15处的图像传感芯片IMA。来自物体的光依序穿过各表面S1至S14并最终成像在成像面S15上。
表24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。
Figure PCTCN2020083224-appb-000006
表24
下表25给出了可用于实施例9中非球面透镜表面S1、S2、S9和S10的圆锥系数K以及高次项系数A、B、C、D和E。
面号 K A B C D E
S1 -0.1226 -9.3075E-04 -1.1729E-05 3.4568E-07 -1.0454E-08 1.9249E-10
S2 -0.0250 -1.4403E-03 -1.9229E-05 8.6547E-07 -3.5577E-08 6.1229E-10
S9 1.1787 -9.8037E-04 3.1404E-07 -1.8226E-06 2.1966E-07 -6.3914E-09
S10 -1.5195 -5.4474E-04 4.1466E-06 7.5017E-08 1.3295E-08 -3.7659E-10
表25
实施例10
以下参照图10描述了根据本申请实施例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，光学镜头沿着光轴由物侧至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和第五透镜L5。
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为具有正光焦度的双凸透镜，其物侧面S4为凸面，像侧面S5为凸面。第三透镜L3为具有正光焦度的双凸透镜，其物侧面S6为凸面，像侧面S7为凸面。第四透镜L4为具有负光焦度的双凹透镜，其物侧面S7为凹面，像侧面S8为凹面。第五透镜L5为具有正光焦度的弯月透镜，其物侧面S9为凸面，像侧面S10为凹面。第三透镜L3和第四透镜L4可胶合组成胶合透镜。
光学镜头还可包括光阑ST0，光阑ST0可设置在第一透镜L1与第二透镜L2之间，以提高成像质量。例如，光阑ST0可靠近第一透镜L1的像侧面S2设置。
在本实施例中，第一透镜L1的物侧面S1和像侧面S2以及第二透镜L2的物侧面S4和像侧面S5均可以是非球面的。
可选地，该光学镜头还可包括具有物侧面S11和像侧面S12的滤光片OF以及具有物侧面S13和像侧面S14的保护玻璃CG。滤光片OF可用于校正色彩偏差，保护玻璃CG可用于保护位于成像面S15处的图像传感芯片IMA。来自物体的光依序穿过各表面S1至S14并最 终成像在成像面S15上。
表26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。
Figure PCTCN2020083224-appb-000007
表26
下表27给出了可用于实施例10中非球面透镜表面S1、S2、S4和S5的圆锥系数K以及高次项系数A、B、C、D和E。
面号 K A B C D E
S1 -8.3387 1.1188E-04 -2.5878E-05 6.6601E-07 -1.9024E-08 2.9249E-10
S2 -0.4497 -7.2148E-04 -9.4785E-06 2.4955E-07 -1.0095E-08 2.2587E-10
S4 -0.0386 -8.9677E-05 2.1440E-07 -1.8017E-08 6.8690E-10 -5.0780E-12
S5 -1.2610 1.6358E-04 4.7916E-08 -1.2747E-08 7.1537E-10 -5.9593E-12
表27
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，光学镜头沿着光轴由物侧至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和第五透镜L5。
第一透镜L1为具有负光焦度的弯月透镜，其物侧面S1为凹面，像侧面S2为凸面。第二透镜L2为具有正光焦度的双凸透镜，其物侧面S4为凸面，像侧面S5为凸面。第三透镜L3为具有正光焦度的双凸透镜，其物侧面S6为凸面，像侧面S7为凸面。第四透镜L4为具有负光焦度的双凹透镜，其物侧面S7为凹面，像侧面S8为凹面。第五透镜L5为具有正光焦度的弯月透镜，其物侧面S9为凹面，像侧面S10为凸面。第三透镜L3和第四透镜L4可胶合组成胶合透镜。
光学镜头还可包括光阑ST0，光阑ST0可设置在第一透镜L1与第二透镜L2之间，以提高成像质量。例如，光阑ST0可靠近第一透镜L1的像侧面S2设置。
在本实施例中，第一透镜L1的物侧面S1和像侧面S2以及第五透镜L5的物侧面S9和 像侧面S10均可以是非球面的。
可选地，该光学镜头还可包括具有物侧面S11和像侧面S12的滤光片OF以及具有物侧面S13和像侧面S14的保护玻璃CG。滤光片OF可用于校正色彩偏差，保护玻璃CG可用于保护位于成像面S15处的图像传感芯片IMA。来自物体的光依序穿过各表面S1至S14并最终成像在成像面S15上。
表28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。
Figure PCTCN2020083224-appb-000008
表28
下表29给出了可用于实施例11中非球面透镜表面S1、S2、S9和S10的圆锥系数K以及高次项系数A、B、C、D和E。
面号 K A B C D E
S1 0.0002 1.4619E-04 6.6430E-06 -7.1023E-08 4.1090E-09 -9.6544E-11
S2 -0.1099 2.5803E-04 6.6405E-06 -1.0307E-07 6.7656E-09 -1.1955E-10
S9 -86.5500 -2.9169E-04 4.4067E-06 -2.7553E-06 2.3171E-07 -9.0968E-09
S10 -14.1873 -2.0187E-04 -7.3405E-06 -1.5609E-07 9.2933E-09 -3.5692E-10
表29
综上，实施例7至实施例11分别满足以下表30所示的关系。在表11中，SL、TTL、F、BFL、TL、H、F2-F4、F34、ΣCT、DSR3的单位为毫米(mm)，FOV的单位为度(°)。
条件式\实施例 实施例1 实施例2 实施例3 实施例4 实施例5
SL 22.9923 19.4742 20.5137 19.3421 21.0438
TTL 29.7086 24.9374 29.1204 27.7677 28.4036
BFL 3.5514 3.5514 4.2553 4.0514 6.3385
TL 26.1573 21.3861 24.8351 23.7163 22.0650
H 9.0020 9.0020 9.0020 7.7860 8.9320
FOV 31.2000 31.2000 31.2000 31.2000 31.2000
DSR3 3.9173 4.7599 4.7599 4.5332 4.8271
F2 12.9379 10.0130 14.9330 10.3878 15.0070
F 16.4190 16.0490 16.6324 14.0183 16.0040
F3 14.0058 11.5105 10.6212 14.1851 11.5713
F4 -9.6956 -5.2697 -7.6535 -5.8111 -6.2782
F34 -94.4358 -17.3849 -320.2005 -11.7866 -28.5232
ΣCT 18.0676 14.4908 15.2300 16.2670 15.3681
SL/TTL 0.7739 0.7809 0.7044 0.6966 0.7409
CT2/T12 0.7845 1.0334 0.4699 0.6895 0.6096
Nd2 1.6951 1.5976 1.6180 1.6363 1.6131
F2/F 0.7880 0.6239 0.8978 0.7410 0.9377
Nd3/Nd4 1.0484 0.8555 0.9335 0.9645 0.9335
Vd4/Vd3 0.4503 0.5975 0.5009 0.4304 0.5570
|F4/F3| 0.6923 0.4578 0.7206 0.6519 0.6661
|F/F34| 0.1739 0.9232 0.0519 1.1893 0.5611
ΣCT/TTL 0.6082 0.5811 0.5230 0.5858 0.5411
TTL/F 1.8094 1.5538 1.7508 1.9808 1.7748
F3/F 0.8530 0.7172 0.6386 1.0119 0.7230
TTL/H/FOV 0.0976 0.1012 0.0918 0.1047 0.1068
BFL/TL 0.1358 0.1661 0.1713 0.1708 0.2873
(FOV×F)/H 56.9065 55.6242 57.6462 56.1739 55.9030
T23/TTL 0.0162 0.0040 0.0034 0.0036 0.0035
F/H 1.8239 1.7828 1.8476 1.8004 1.7918
DSR3/T12 0.8050 1.4101 0.7100 0.6981 0.9925
表30
实施例12
以下参照图12描述根据本申请实施例12的光学镜头。图12示出了根据本申请实施例12的光学镜头的结构示意图。
如图12所示，光学镜头沿着光轴由物侧至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和第五透镜L5。
第一透镜L1为具有负光焦度的弯月透镜，其物侧面S1为凹面，像侧面S2为凸面。第二透镜L2为具有正光焦度的双凸透镜，其物侧面S4为凸面，像侧面S5为凸面。第三透镜L3为具有正光焦度的双凸透镜，其物侧面S6为凸面，像侧面S7为凸面。第四透镜L4为具有负光焦度的双凹透镜，其物侧面S7为凹面，像侧面S8为凹面。第五透镜L5为具有正光焦度的弯月透镜，其物侧面S9为凸面，像侧面S10为凹面。第三透镜L3和第四透镜L4可胶合组成胶合透镜。
光学镜头还可包括光阑STO，光阑STO可设置在第一透镜L1与第二透镜L2之间，以提高成像质量。例如，光阑STO可靠近第一透镜L1的像侧面S2设置。
在本实施例中，第一透镜L1和第五透镜L5的物侧面和像侧面均可以是非球面的。
可选地，该光学镜头还可包括具有物侧面S11和像侧面S12的滤光片L6或保护玻璃L6’(未示出)，该滤光片L6可用于校正色彩偏差以及该保护玻璃L6’可用于保护位于成像面处的图像传感芯片IMA。来自物体的光依序穿过各表面S1至S12并最终成像在图像传感芯片IMA上。
表31示出了实施例12的光学镜头的各透镜的曲率半径R、厚度T(应理解，S1所在行的厚度T为第一透镜L1的中心厚度，S2所在行的厚度T为第一透镜L1与第二透镜L2之间的空气间隔d12，以此类推)、折射率Nd以及阿贝数Vd。
Figure PCTCN2020083224-appb-000009
Figure PCTCN2020083224-appb-000010
表31
下表32示出了可用于实施例12中的非球面透镜表面S1、S2、S9和S10的圆锥系数K以及高次项系数A、B、C、D和E。
面号 K A B C D E
S1 1.1417 2.2659E-04 8.1071E-06 5.7623E-08 1.4335E-09 3.1912E-11
S2 0.4248 1.5838E-04 5.3593E-06 -4.6926E-08 3.5064E-09 -6.4820E-11
S9 16.9736 -2.9068E-04 -9.2706E-06 -6.8221E-07 3.8120E-08 -1.7576E-09
S10 42.9190 -1.5483E-04 -1.5656E-05 -3.0863E-07 1.1839E-08 -1.2314E-09
表32
实施例13
以下参照图13描述了根据本申请实施例13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12相似的描述。图13示出了根据本申请实施例13的光学镜头的结构示意图。
如图13所示，光学镜头沿着光轴由物侧至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和第五透镜L5。
第一透镜L1为具有负光焦度的弯月透镜，其物侧面S1为凹面，像侧面S2为凸面。第二透镜L2为具有正光焦度的双凸透镜，其物侧面S4为凸面，像侧面S5为凸面。第三透镜L3为具有正光焦度的双凸透镜，其物侧面S6为凸面，像侧面S7为凸面。第四透镜L4为具有负光焦度的双凹透镜，其物侧面S7为凹面，像侧面S8为凹面。第五透镜L5为具有正光焦度的弯月透镜，其物侧面S9为凹面，像侧面S10为凸面。第三透镜L3和第四透镜L4可胶合组成胶合透镜。
光学镜头还可包括光阑STO，光阑STO可设置在第一透镜L1与第二透镜L2之间，以提高成像质量。例如，光阑STO可靠近第一透镜L1的像侧面S2设置。
在本实施例中，第一透镜L1和第五透镜L5的物侧面和像侧面均可以是非球面的。
可选地，该光学镜头还可包括具有物侧面S11和像侧面S12的滤光片L6或保护玻璃L6’(未示出)，该滤光片L6可用于校正色彩偏差以及该保护玻璃L6’可用于保护位于成像面处的图像传感芯片IMA。来自物体的光依序穿过各表面S1至S12并最终成像在图像传感芯片IMA上。
表33示出了实施例13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。
面号 曲率半径R(mm) 厚度T(mm) 折射率Nd 阿贝数Vd
S1 -9.5055 2.5773 1.64 55.47
S2 -11.4787 -0.4026    
STO 无穷大 6.7944    
S4 36.0534 2.5237 1.62 63.41
S5 -14.8715 0.1229    
S6 10.1469 3.5290 1.62 63.41
S7 -24.5102 2.5312 1.67 32.18
S8 6.9964 2.6350    
S9 -75.5511 4.3567 1.74 28.25
S10 -246.5983 1.0087    
S11 无穷大 1.0500 1.52 64.21
S12 无穷大 3.5664    
IMA 无穷大      
表33
下表34给出了可用于实施例13中非球面透镜表面S1、S2、S9和S10的圆锥系数K以及高次项系数A、B、C、D和E。
面号 K A B C D E
S1 1.1556 2.2647E-04 9.1918E-06 6.8570E-08 3.3074E-09 -4.1232E-11
S2 0.3357 1.7024E-04 5.4228E-06 -3.4714E-08 3.6235E-09 -6.0890E-11
S9 -68.3375 -1.9147E-04 -1.0386E-06 -6.1328E-07 3.6869E-08 -8.2564E-10
S10 -200.0000 6.1190E-05 -7.8046E-07 -3.3757E-07 2.1435E-08 -3.7813E-10
表34
实施例14
以下参照图14描述了根据本申请实施例14的光学镜头。图14示出了根据本申请实施例14的光学镜头的结构示意图。
如图14所示，光学镜头沿着光轴由物侧至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和第五透镜L5。
第一透镜L1为具有负光焦度的弯月透镜，其物侧面S1为凹面，像侧面S2为凸面。第二透镜L2为具有正光焦度的双凸透镜，其物侧面S4为凸面，像侧面S5为凸面。第三透镜L3为具有负光焦度的双凹透镜，其物侧面S6为凹面，像侧面S7为凹面。第四透镜L4为具有正光焦度的双凸透镜，其物侧面S7为凸面，像侧面S8为凸面。第五透镜L5为具有负光焦度的弯月透镜，其物侧面S9为凸面，像侧面S10为凹面。第三透镜L3和第四透镜L4可胶合组成胶合透镜。
光学镜头还可包括光阑STO，光阑STO可设置在第一透镜L1与第二透镜L2之间，以提高成像质量。例如，光阑STO可靠近第一透镜L1的像侧面S2设置。
在本实施例中，第一透镜L1和第五透镜L5的物侧面和像侧面均可以是非球面的。
可选地，该光学镜头还可包括具有物侧面S11和像侧面S12的滤光片L6或保护玻璃L6’(未示出)，该滤光片L6可用于校正色彩偏差以及该保护玻璃L6’可用于保护位于成像面处的图像传感芯片IMA。来自物体的光依序穿过各表面S1至S12并最终成像在图像传感芯片IMA上。
表35示出了实施例14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。
面号 曲率半径R(mm) 厚度T(mm) 折射率Nd 阿贝数Vd
S1 -47.5994 2.8826 1.59 61.16
S2 -52.7269 0.5000    
STO 无穷大 1.3487    
S4 16.5369 2.6370 1.62 60.37
S5 -12.5699 0.5000    
S6 -14.4792 1.9289 1.65 33.84
S7 7.2294 4.5330 1.72 47.92
S8 -19.2769 2.4498    
S9 13.5148 2.9700 1.60 60.63
S10 5.3000 1.5127    
S11 无穷大 1.0500 1.52 64.21
S12 无穷大 3.2098    
IMA 无穷大      
表35
下表36给出了可用于实施例14中非球面透镜表面S1、S2、S9和S10的圆锥系数K以及高次项系数A、B、C、D和E。
面号 K A B C D E
S1 71.6939 -4.9603E-04 1.5165E-06 -4.7359E-08 5.9392E-09 -3.4119E-11
S2 99.0000 -3.1818E-04 4.5980E-06 1.5661E-07 -4.4997E-09 2.2727E-10
S9 5.3926 -1.6960E-03 -1.4345E-05 -5.2670E-07 4.0181E-08 -1.3345E-09
S10 0.0413 -1.9489E-03 -1.5998E-05 -7.3128E-07 8.1147E-08 -3.7743E-09
表36
实施例15
以下参照图15描述了根据本申请实施例15的光学镜头。图15示出了根据本申请实施例15的光学镜头的结构示意图。
如图15所示，光学镜头沿着光轴由物侧至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和第五透镜L5。
第一透镜L1为具有负光焦度的弯月透镜，其物侧面S1为凹面，像侧面S2为凸面。第二透镜L2为具有正光焦度的弯月透镜，其物侧面S4为凹面，像侧面S5为凸面。第三透镜L3为具有正光焦度的双凸透镜，其物侧面S6为凸面，像侧面S7为凸面。第四透镜L4为具有负光焦度的双凹透镜，其物侧面S7为凹面，像侧面S8为凹面。第五透镜L5为具有正光焦度的弯月透镜，其物侧面S9为凸面，像侧面S10为凹面。第三透镜L3和第四透镜L4可胶合组成胶合透镜。
光学镜头还可包括光阑STO，光阑STO可设置在第一透镜L1与第二透镜L2之间，以提高成像质量。例如，光阑STO可靠近第一透镜L1的像侧面S2设置。
在本实施例中，第一透镜L1和第五透镜L5的物侧面和像侧面均可以是非球面的。
可选地，该光学镜头还可包括具有物侧面S11和像侧面S12的滤光片L6或保护玻璃L6’(未示出)，该滤光片L6可用于校正色彩偏差以及该保护玻璃L6’可用于保护位于成像面处的图像传感芯片IMA。来自物体的光依序穿过各表面S1至S12并最终成像在图像传感芯片IMA上。
表37示出了实施例15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。
面号 曲率半径R(mm) 厚度T(mm) 折射率Nd 阿贝数Vd
S1 -10.7488 2.9733 1.74 44.90
S2 -12.8647 -0.4026    
STO 无穷大 5.5931    
S4 -150.0000 3.0000 1.60 60.63
S5 -10.1586 0.3908    
S6 10.3575 3.7877 1.62 63.41
S7 -18.8635 2.5381 1.67 32.18
S8 5.9409 4.1410    
S9 15.5613 3.5281 1.75 35.02
S10 22.2277 0.6389    
S11 无穷大 1.0500 1.52 64.21
S12 无穷大 3.1538    
IMA 无穷大      
表37
下表38给出了可用于实施例15中非球面透镜表面S1、S2、S9和S10的圆锥系数K以及高次项系数A、B、C、D和E。
面号 K A B C D E
S1 0.7933 3.0421E-04 1.0160E-05 -5.0428E-08 9.5409E-10 -3.4494E-11
S2 -1.0930 3.0023E-04 7.2448E-06 2.6079E-08 8.1206E-10 4.8022E-12
S9 5.5363 2.4654E-04 1.2168E-06 1.9132E-07 -9.8778E-09 2.2207E-10
S10 21.3948 3.3386E-04 1.5573E-06 1.0879E-07 -7.3063E-10 -2.6058E-10
表38
实施例16
以下参照图16描述了根据本申请实施例16的光学镜头。图16示出了根据本申请实施例16的光学镜头的结构示意图。
如图16所示，光学镜头沿着光轴由物侧至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和第五透镜L5。
第一透镜L1为具有负光焦度的弯月透镜，其物侧面S1为凹面，像侧面S2为凸面。第二透镜L2为具有正光焦度的双凸透镜，其物侧面S4为凸面，像侧面S5为凸面。第三透镜L3为具有正光焦度的双凸透镜，其物侧面S6为凸面，像侧面S7为凸面。第四透镜L4为具有负光焦度的双凹透镜，其物侧面S7为凹面，像侧面S8为凹面。第五透镜L5为具有负光焦度的双凹透镜，其物侧面S9为凹面，像侧面S10为凹面。第三透镜L3和第四透镜L4可胶合组成胶合透镜。
光学镜头还可包括光阑STO，光阑STO可设置在第一透镜L1与第二透镜L2之间，以提高成像质量。例如，光阑STO可靠近第一透镜L1的像侧面S2设置。
在本实施例中，第一透镜L1和第五透镜L5的物侧面和像侧面均可以是非球面的。
可选地，该光学镜头还可包括具有物侧面S11和像侧面S12的滤光片L6或保护玻璃L6’(未示出)，该滤光片L6可用于校正色彩偏差以及该保护玻璃L6’可用于保护位于成像面处的图像传感芯片IMA。来自物体的光依序穿过各表面S1至S12并最终成像在图像传感芯片IMA上。
表39示出了实施例16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。
面号 曲率半径R(mm) 厚度T(mm) 折射率Nd 阿贝数Vd
S1 -13.5249 3.0000 1.64 34.49
S2 -19.8528 -0.4026    
STO 无穷大 3.5638    
S4 98.0000 6.5224 1.62 63.41
S5 -10.8619 0.3316    
S6 11.2539 3.6102 1.62 63.41
S7 -28.5534 2.7202 1.67 32.18
S8 9.2777 2.8198    
S9 -78.7325 4.4697 1.73 28.32
S10 39.4192 0.6489    
S11 无穷大 1.0500 1.52 64.21
S12 无穷大 3.0857    
IMA 无穷大      
表39
下表40给出了可用于实施例16中非球面透镜表面S1、S2、S9和S10的圆锥系数K以及高次项系数A、B、C、D和E。
面号 K A B C D E
S1 1.6315 1.5814E-04 7.0835E-06 -1.1385E-07 6.5318E-09 -1.4427E-10
S2 -2.2306 2.4611E-04 6.6247E-06 -1.5863E-08 3.7605E-09 -5.5253E-11
S9 -100.0000 -1.9172E-04 2.8561E-06 -4.7182E-07 2.8999E-08 -6.8492E-10
S10 -81.3945 3.4188E-04 3.8673E-06 -5.2801E-07 3.8285E-08 -8.7513E-10
表40
综上，实施例12至实施例16分别满足以下表41所示的关系。在表41中，TTL、F、BFL、D、H、T45、F1、F2、F3、F4、F34的单位为毫米(mm)，FOV的单位为度(°)。
条件式\实施例 实施例1 实施例2 实施例3 实施例4 实施例5
TTL 27.9596 30.2928 25.5226 30.3923 31.4199
BFL 3.8244 5.6251 5.7725 4.8427 4.7846
F 13.9718 16.3884 15.6175 15.9083 15.8325
D 3.8127 4.4300 4.3104 4.5223 4.4333
H 3.6210 4.4060 4.2990 4.3060 4.2930
FOV 15.0000 15.0000 15.0000 15.0000 15.0000
F1 -155.8291 -176.1316 -1046.5305 -219.1800 -80.9456
F2 17.8750 17.3076 11.8835 17.8592 16.1392
F3 11.7604 12.0420 -7.1478 11.3457 13.4863
F4 -7.7009 -7.7856 7.8634 -6.4077 -10.0498
F34 -68.6532 -61.8313 129.4313 -32.3871 -229.3325
TTL/F 2.0011 1.8484 1.6342 1.9105 1.9845
BFL/TTL 0.1368 0.1857 0.2262 0.1593 0.1523
D/H/FOV 0.0702 0.0670 0.0668 0.0700 0.0688
|F3/F4| 1.5271 1.5467 0.9090 1.7706 1.3420
|F1/F| 11.1531 10.7473 67.0101 13.7777 5.1126
max{dn：dm} 2.2000 1.7212 2.3500 1.4924 2.3978
|F1/F2| 8.7177 10.1765 88.0659 12.2726 5.0155
|(R4-R5)/(R4+R5)| 4.2687 2.4042 7.3372 0.8731 1.2493
|F34/F| 4.9137 3.7729 8.2876 2.0359 14.4849
|R1/R2| 0.8322 0.8281 0.9028 0.8355 0.6813
T12/TTL 0.1986 0.2110 0.0724 0.1708 0.1006
T45/TTL 0.0945 0.0870 0.0960 0.1363 0.0897
表41
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 (139)

  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、第四透镜和第五透镜，其特征在于，
    所述第一透镜具有正光焦度或负光焦度，其物侧面为凸面，像侧面为凹面；
    所述第二透镜具有正光焦度，其物侧面和像侧面均为凸面；
    所述第三透镜具有正光焦度，其物侧面和像侧面均为凸面；
    所述第四透镜具有负光焦度，其物侧面和像侧面均为凹面；以及
    所述第五透镜具有正光焦度，其物侧面为凸面，像侧面为凹面。
  2. 根据权利要求1所述的光学镜头，其特征在于，所述第一透镜为非球面镜片。
  3. 根据权利要求1所述的光学镜头，其特征在于，所述第二透镜为非球面镜片。
  4. 根据权利要求1所述的光学镜头，其特征在于，所述第三透镜与所述第四透镜互相胶合形成胶合透镜。
  5. 根据权利要求1所述的光学镜头，其特征在于，所述光学镜头还包括附加透镜，所述附加透镜具有负光焦度，其物侧面为凸面，像侧面为凹面。
  6. 根据权利要求5所述的光学镜头，其特征在于，所述附加透镜设置在所述第一透镜与所述第二透镜之间。
  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，所述光学镜头的光学总长度TTL与所述光学镜头的整组焦距值F之间满足：TTL/F≤3。
  8. 根据权利要求1-6中任一项所述的光学镜头，其特征在于，所述光学镜头的光学后焦BFL与所述光学镜头的透镜组长度TL之间满足：BFL/TL≥0.1。
  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，所述第二透镜和所述第三透镜在所述光轴上的中心间距T23与所述光学镜头的光学总长度TTL之间满足：T23/TTL≤0.01。
  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，所述第四透镜和所述第五透镜在所述光轴上的中心间距T45与所述光学镜头的光学总长度TTL之间满足：T45/TTL≤0.1。
  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，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≤0.06。
  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，所述第五透镜的焦距值F5与所述光学镜头的整组焦距值F之间满足：F5/F≤4。
  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，所述第二透镜至所述第五透镜中的任一透镜的中心厚度dn(n＝2、3、4、5)与所述第二透镜至所述第五透镜中的任一透镜的中心厚度dm(m＝2、3、4、5)之间满足：max{dn/dm}≤3。
  14. 根据权利要求1-4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曲率半径r1、所述第一透镜的像侧面的中心曲率半径r2以及所述第一透镜的中心厚度d1之间满足：0.5≤|(r2+d1)/r1|≤1.5。
  15. 根据权利要求5或6所述的光学镜头，其特征在于，所述第一透镜的像侧面的曲率半径r2与所述附加透镜的物侧面的曲率半径r3之间满足：-0.15≤(r2-r3)/(r2+r3)≤1。
  16. 根据权利要求5或6所述的光学镜头，其特征在于，所述第一透镜和所述附加透镜在光轴上的中心间距T1x与所述第一透镜和所述第二透镜在光轴上的中心间距T12之间满足：0.01≤T1x/T12≤0.15。
  17. 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、第四透镜和第五透镜，其特征在于，
    所述第一透镜具有正光焦度或负光焦度；
    所述第二透镜、所述第三透镜和所述第五透镜均具有正光焦度；
    所述第四透镜具有负光焦度；
    所述第三透镜与所述第四透镜互相胶合形成胶合透镜；以及
    所述光学镜头的光学总长度TTL与所述光学镜头的整组焦距值F之间满足：TTL/F≤3。
  18. 根据权利要求17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。
  19. 根据权利要求17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凸面。
  20. 根据权利要求17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凸面。
  21. 根据权利要求17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凹面。
  22. 根据权利要求17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。
  23. 根据权利要求17所述的光学镜头，其特征在于，所述光学镜头还包括附加透镜，所述附加透镜具有负光焦度，其物侧面为凸面，像侧面为凹面。
  24. 根据权利要求17所述的光学镜头，其特征在于，所述附加透镜设置在所述第一透镜与所述第二透镜之间。
  25. 根据权利要求17-24中任一项所述的光学镜头，其特征在于，所述第一透镜为非球面镜片。
  26. 根据权利要求17-24中任一项所述的光学镜头，其特征在于，所述第二透镜为非球面镜片。
  27. 根据权利要求17-24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与所述光学镜头的透镜组长度TL之间满足：BFL/TL≥0.1。
  28. 根据权利要求17-24中任一项所述的光学镜头，其特征在于，所述第二透镜和所述第三透镜在所述光轴上的中心间距T23与所述光学镜头的光学总长度TTL之间满足：T23/TTL≤0.01。
  29. 根据权利要求17-24中任一项所述的光学镜头，其特征在于，所述第四透镜和所述第五透镜在所述光轴上的中心间距T45与所述光学镜头的光学总长度TTL之间满足：T45/TTL≤0.1。
  30. 根据权利要求17-24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≤0.06。
  31. 根据权利要求17-24中任一项所述的光学镜头，其特征在于，所述第五透镜的焦距值F5与所述光学镜头的整组焦距值F之间满足：F5/F≤4。
  32. 根据权利要求17-24中任一项所述的光学镜头，其特征在于，所述第二透镜至所述第五透镜中的任一透镜的中心厚度dn(n＝2、3、4、5)与所述第二透镜至所述第五透镜中的任一透镜的中心厚度dm(m＝2、3、4、5)之间满足：max{dn/dm}≤3。
  33. 根据权利要求17-22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曲率半径r1、所述第一透镜的像侧面的中心曲率半径r2以及所述第一透镜的中心厚度d1之间满足：0.5≤|(r2+d1)/r1|≤1.5。
  34. 根据权利要求23或24所述的光学镜头，其特征在于，所述第一透镜的像侧面的曲率半径r2与所述附加透镜的物侧面的曲率半径r3之间满足：-0.15≤(r2-r3)/(r2+r3)≤1。
  35. 根据权利要求23或24所述的光学镜头，其特征在于，所述第一透镜和所述附加透镜在光轴上的中心间距T1x与所述第一透镜和所述第二透镜在光轴上的中心间距T12之间满足：0.01≤T1x/T12≤0.15。
  36. 一种成像设备，其特征在于，包括权利要求1或17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。
  37. 一种光学镜头，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、第四透镜和第五透镜，其特征在于：
    所述第一透镜具有负光焦度；
    所述第二透镜具有正光焦度，其物侧面为凸面，像侧面为凸面；
    所述第三透镜具有正光焦度，其物侧面为凸面，像侧面为凸面；
    所述第四透镜具有负光焦度，其物侧面为凹面，像侧面为凹面；以及
    所述第五透镜具有光焦度。
  38. 根据权利要求37所述的光学透镜，其特征在于，所述第一透镜的物侧面为凸面，像侧面为凹面。
  39. 根据权利要求37所述的光学透镜，其特征在于，所述第一透镜的物侧面为凹面，像侧面为凸面。
  40. 根据权利要求37所述的光学透镜，其特征在于，所述第五透镜的物侧面为凸面，像侧面为凹面。
  41. 根据权利要求37所述的光学透镜，其特征在于，所述第五透镜的物侧面为凹面，像侧面为凸面。
  42. 根据权利要求37所述的光学镜头，其特征在于，所述第三透镜和所述第四透镜胶合形成胶合透镜。
  43. 根据权利要求37所述的光学镜头，其特征在于，所述第一透镜和所述第二透镜之间设置有光阑。
  44. 根据权利要求37所述的光学镜头，其特征在于，所述第一透镜、所述第二透镜和所述第五透镜中至少有一个透镜为非球面透镜。
  45. 根据权利要求37所述的光学镜头，其特征在于，所述光学镜头中的各个透镜均由玻璃材料制成。
  46. 根据权利要求37-45中任一项所述的光学镜头，其特征在于，所述光学镜头的总长度TTL与所述光学镜头的总有效焦距F满足：TTL/F≤2.2。
  47. 根据权利要求37-45中任一项所述的光学镜头，其特征在于，所述第二透镜的物侧面到所述光学镜头的成像面的距离SL与所述光学镜头的总长度TTL满足：0.66≤SL/TTL≤1.24。
  48. 根据权利要求37-45中任一项所述的光学镜头，其特征在于，所述第二透镜在所述光轴上的中心厚度CT2与所述第一透镜的像侧面至所述第二透镜的物侧面在所述光轴上的距离T12满足：CT2/T12≤1.26。
  49. 根据权利要求37-45中任一项所述的光学镜头，其特征在于，所述第二透镜的有效焦距F2与所述光学镜头的总有效焦距F满足：0.5≤F2/F≤1.5。
  50. 根据权利要求37-45中任一项所述的光学镜头，其特征在于，所述第四透镜的有效焦距F4与所述第三透镜的有效焦距F3满足：|F4/F3|≤2。
  51. 根据权利要求37-45中任一项所述的光学镜头，其特征在于，所述光学镜头的总有效焦距F与所述第三透镜和所述第四透镜的组合焦距F34满足：|F/F34|≤1.5。
  52. 根据权利要求37-45中任一项所述的光学镜头，其特征在于，所述光学镜头中所有透镜在所述光轴上的中心厚度之和ΣCT与所述光学镜头的总长度TTL满足：ΣCT/TTL≤0.67。
  53. 根据权利要求37-45中任一项所述的光学镜头，其特征在于，所述第三透镜的有效焦距F3与所述光学镜头的总有效焦距F满足：0.1≤F3/F≤1.3。
  54. 根据权利要求37-45中任一项所述的光学镜头，其特征在于，所述光学镜头的总长度TTL、所述光学镜头的最大视场角对应的像高H以及所述光学镜头的最大视场角FOV满足：TTL/H/FOV≤0.30。
  55. 根据权利要求37-45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、所述光学镜头的总有效焦距F以及所述光学镜头的最大视场角对应的像高H满足：(FOV×F)/H≤65。
  56. 根据权利要求37-45中任一项所述的光学镜头，其特征在于，所述第二透镜的像侧面至所述第三透镜的物侧面在所述光轴上的距离T23与所述光学镜头的总长度TTL满足：T23/TTL≤0.03。
  57. 根据权利要求37-45中任一项所述的光学镜头，其特征在于，所述光学镜头的总有效焦距F与所述光学镜头的最大视场角对应的像高H满足：F/H≥1.5。
  58. 根据权利要求43所述的光学镜头，其特征在于，所述光阑到所述第二透镜的距离DSR3与所述第一透镜的像侧面至所述第二透镜的物侧面在所述光轴上的距离T12满足：DSR3/T12≥0.42。
  59. 根据权利要求37-45中任一项所述的光学镜头，其特征在于，所述第五透镜的像侧面至所述光学镜头的成像面的距离BFL与所述第一透镜的物侧面至所述第五透镜的像侧面的距离TL满足：BFL/TL≥0.10。
  60. 根据权利要求37-45中任一项所述的光学镜头，其特征在于，所述第二透镜的折射率Nd2满足：1.5≤Nd2。
  61. 根据权利要求37-45中任一项所述的光学镜头，其特征在于，所述第三透镜的折射率Nd3与所述第四透镜的折射率Nd4满足：Nd3/Nd4≤1.5。
  62. 根据权利要求37-45中任一项所述的光学镜头，其特征在于，所述第四透镜的阿贝数Vd4与所述第三透镜的阿贝数Vd3满足：Vd4/Vd3≤1.1。
  63. 一种光学镜头，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、第四透镜和第五透镜，其特征在于：
    所述第一透镜具有负光焦度；
    所述第二透镜具有正光焦度；
    所述第三透镜具有正光焦度；
    所述第四透镜具有负光焦度；以及
    所述第五透镜具有光焦度，其中：
    所述光学镜头的总长度TTL与所述光学镜头的总有效焦距F满足：TTL/F≤2.2。
  64. 根据权利要求63所述的光学透镜，其特征在于，所述第一透镜的物侧面为凸面，像侧面为凹面。
  65. 根据权利要求63所述的光学透镜，其特征在于，所述第一透镜的物侧面为凹面，像侧面为凸面。
  66. 根据权利要求63所述的光学透镜，其特征在于，所述第二透镜的物侧面为凸面，像侧面为凸面。
  67. 根据权利要求63所述的光学透镜，其特征在于，所述第三透镜的物侧面为凸面，像侧面为凸面。
  68. 根据权利要求63所述的光学透镜，其特征在于，所述第四透镜的物侧面为凹面，像侧面为凹面。
  69. 根据权利要求63所述的光学透镜，其特征在于，所述第五透镜的物侧面为凸面，像侧面为凹面。
  70. 根据权利要求63所述的光学透镜，其特征在于，所述第五透镜的物侧面为凹面，像侧面为凸面。
  71. 根据权利要求63所述的光学镜头，其特征在于，所述第三透镜和所述第四透镜胶合形成胶合透镜。
  72. 根据权利要求63所述的光学镜头，其特征在于，所述第一透镜和所述第二透镜之间设置有光阑。
  73. 根据权利要求63所述的光学镜头，其特征在于，所述第一透镜、所述第二透镜和所述第五透镜中至少有一个透镜为非球面透镜。
  74. 根据权利要求63所述的光学镜头，其特征在于，所述光学镜头中的各个透镜均由玻璃材料制成。
  75. 根据权利要求63-74中任一项所述的光学镜头，其特征在于，所述第二透镜的物侧面到所述光学镜头的成像面的距离SL与所述光学镜头的总长度TTL满足：0.66≤SL/TTL≤1.24。
  76. 根据权利要求63-74中任一项所述的光学镜头，其特征在于，所述第二透镜在所述光轴上的中心厚度CT2与所述第一透镜的像侧面至所述第二透镜的物侧面在所述光轴上的距离T12满足：CT2/T12≤1.26。
  77. 根据权利要求63-74中任一项所述的光学镜头，其特征在于，所述第二透镜的有效焦距F2与所述光学镜头的总有效焦距F满足：0.5≤F2/F≤1.5。
  78. 根据权利要求63-74中任一项所述的光学镜头，其特征在于，所述第四透镜的有效焦距F4与所述第三透镜的有效焦距F3满足：|F4/F3|≤2。
  79. 根据权利要求63-74中任一项所述的光学镜头，其特征在于，所述光学镜头的总有效焦距F与所述第三透镜和所述第四透镜的组合焦距F34满足：|F/F34|≤1.5。
  80. 根据权利要求63-74中任一项所述的光学镜头，其特征在于，所述光学镜头中所有透镜在所述光轴上的中心厚度之和ΣCT与所述光学镜头的总长度TTL满足：ΣCT/TTL≤0.67。
  81. 根据权利要求63-74中任一项所述的光学镜头，其特征在于，所述第三透镜的有效焦距F3与所述光学镜头的总有效焦距F满足：0.1≤F3/F≤1.3。
  82. 根据权利要求63-74中任一项所述的光学镜头，其特征在于，所述光学镜头的总长度TTL、所述光学镜头的最大视场角对应的像高H以及所述光学镜头的最大视场角FOV满足：TTL/H/FOV≤0.30。
  83. 根据权利要求63-74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、所述光学镜头的总有效焦距F以及所述光学镜头的最大视场角对应的像高H满足：(FOV×F)/H≤65。
  84. 根据权利要求63-74中任一项所述的光学镜头，其特征在于，所述第二透镜的像侧面至所述第三透镜的物侧面在所述光轴上的距离T23与所述光学镜头的总长度TTL满足： T23/TTL≤0.03。
  85. 根据权利要求63-74中任一项所述的光学镜头，其特征在于，所述光学镜头的总有效焦距F与所述光学镜头的最大视场角对应的像高H满足：F/H≥1.5。
  86. 根据权利要求72所述的光学镜头，其特征在于，所述光阑到所述第二透镜的距离DSR3与所述第一透镜的像侧面至所述第二透镜的物侧面在所述光轴上的距离T12满足：DSR3/T12≥0.42。
  87. 根据权利要求63-74中任一项所述的光学镜头，其特征在于，所述第五透镜的像侧面至所述光学镜头的成像面的距离BFL与所述第一透镜的物侧面至所述第五透镜的像侧面的距离TL满足：BFL/TL≥0.10。
  88. 根据权利要求63-74中任一项所述的光学镜头，其特征在于，所述第二透镜的折射率Nd2满足：1.5≤Nd2。
  89. 根据权利要求63-74中任一项所述的光学镜头，其特征在于，所述第三透镜的折射率Nd3与所述第四透镜的折射率Nd4满足：Nd3/Nd4≤1.5。
  90. 根据权利要求63-74中任一项所述的光学镜头，其特征在于，所述第四透镜的阿贝数Vd4与所述第三透镜的阿贝数Vd3满足：Vd4/Vd3≤1.1。
  91. 一种电子设备，其特征在于，包括权利要求37或63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。
  92. 一种光学镜头，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、第四透镜和第五透镜，其特征在于：
    所述第一透镜具有负光焦度，其物侧面为凹面，像侧面为凸面；
    所述第二透镜具有正光焦度；
    所述第三透镜具有光焦度；
    所述第四透镜具有光焦度；以及
    所述第五透镜具有光焦度。
  93. 根据权利要求92所述的光学镜头，其特征在于，所述第三透镜和所述第四透镜胶合形成胶合透镜。
  94. 根据权利要求92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，像侧面为凸面。
  95. 根据权利要求92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，像侧面为凸面。
  96. 根据权利要求92所述的光学镜头，其特征在于，所述第三透镜的物侧面为凸面，像侧面为凸面。
  97. 根据权利要求92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，像侧面为凹面。
  98. 根据权利要求92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，像侧面为凸面。
  99. 根据权利要求92所述的光学镜头，其特征在于，所述第四透镜的物侧面为凹面，像侧面为凹面。
  100. 根据权利要求92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。
  101. 根据权利要求92所述的光学镜头，其特征在于，所述第五透镜的物侧面为凹面，像侧面为凸面。
  102. 根据权利要求92所述的光学镜头，其特征在于，所述第五透镜的物侧面为凹面，像侧面为凹面。
  103. 根据权利要求92所述的光学镜头，其特征在于，所述第一透镜和所述第五透镜均为非球面透镜。
  104. 根据权利要求92-103中任一项所述的光学镜头，其特征在于，所述第三透镜和所述第四透镜的组合焦距F34与所述光学镜头的总有效焦距F满足：0.2≤|F34/F|≤6.8。
  105. 根据权利要求92-103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至所述光学镜头的成像面在所述光轴上的距离TTL与所述光学镜头的总有效焦距F满足：TTL/F≤3。
  106. 根据权利要求92-103中任一项所述的光学镜头，其特征在于，所述第五透镜的像侧面至所述光学镜头的成像面在所述光轴上的距离BFL与所述第一透镜的物侧面至所述光学镜头的成像面在所述光轴上的距离TTL满足：BFL/TTL≥0.10。
  107. 根据权利要求92-103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、与所述最大视场角FOV对应的所述第一透镜的物侧面的最大通光口径D以及与所述最大视场角FOV对应的像高H满足：D/H/FOV≤0.08。
  108. 根据权利要求92-103中任一项所述的光学镜头，其特征在于，所述第三透镜的有效焦距F3与所述第四透镜的有效焦距F4满足：0.6≤|F3/F4|≤2.2。
  109. 根据权利要求92-103中任一项所述的光学镜头，其特征在于，所述第一透镜的有效焦距F1与所述光学镜头的总有效焦距F满足：4≤|F1/F|。
  110. 根据权利要求92-103中任一项所述的光学镜头，其特征在于，所述第一透镜至所述第五透镜中任意两个透镜在所述光轴上的中心厚度的比值不大于3.5。
  111. 根据权利要求92-103中任一项所述的光学镜头，其特征在于，所述第一透镜的有效焦距F1与所述第二透镜的有效焦距F2满足：4≤|F1/F2|。
  112. 根据权利要求92-103中任一项所述的光学镜头，其特征在于，所述第二透镜的物侧面的曲率半径R4与所述第二透镜的像侧面的曲率半径R5满足：|(R4-R5)/(R4+R5)|≤8.5。
  113. 根据权利要求92-103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曲率半径R1与所述第一透镜的像侧面的曲率半径R2满足：0.5≤|R1/R2|≤1.5。
  114. 根据权利要求92-103中任一项所述的光学镜头，其特征在于，所述第一透镜和所述第二透镜在所述光轴上的间隔距离T12与所述第一透镜的物侧面至所述光学镜头的成像面在所述光轴上的距离TTL满足：0.02≤T12/TTL≤0.33。
  115. 根据权利要求92-103中任一项所述的光学镜头，其特征在于，第四透镜和所述第五透镜在所述光轴上的间隔距离T45与所述第一透镜的物侧面至所述光学镜头的成像面在所述光轴上的距离TTL满足：0.10≤T45/TTL≤0.60。
  116. 一种光学镜头，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、第四透镜和第五透镜，其特征在于：
    所述第一透镜具有负光焦度；
    所述第二透镜具有正光焦度；
    所述第三透镜具有光焦度；
    所述第四透镜具有光焦度；以及
    所述第五透镜具有光焦度，其中：
    所述第一透镜的物侧面至所述光学镜头的成像面在所述光轴上的距离TTL与所述光学镜头的总有效焦距F满足：TTL/F≤3。
  117. 根据权利要求116所述的光学镜头，其特征在于，所述第三透镜和所述第四透镜胶合形成胶合透镜。
  118. 根据权利要求116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，像侧面为凸面。
  119. 根据权利要求116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，像侧面为凸面。
  120. 根据权利要求116所述的光学镜头，其特征在于，所述第三透镜的物侧面为凸面，像侧面为凸面。
  121. 根据权利要求116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，像侧面为凹面。
  122. 根据权利要求116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，像侧面为凸面。
  123. 根据权利要求116所述的光学镜头，其特征在于，所述第四透镜的物侧面为凹面，像侧面为凹面。
  124. 根据权利要求116所述的光学镜头，其特征在于，所述第五透镜的物9侧面为凸面，像侧面为凹面。
  125. 根据权利要求116所述的光学镜头，其特征在于，所述第五透镜的物侧面为凹面，像侧面为凸面。
  126. 根据权利要求116所述的光学镜头，其特征在于，所述第五透镜的物侧面为凹面，像侧面为凹面。
  127. 根据权利要求116所述的光学镜头，其特征在于，所述第一透镜和所述第五透镜均为非球面透镜。
  128. 根据权利要求116-127中任一项所述的光学镜头，其特征在于，第四透镜和所述第五透镜在所述光轴上的间隔距离T45与所述第一透镜的物侧面至所述光学镜头的成像面在所述光轴上的距离TTL满足：0.10≤T45/TTL≤0.60。
  129. 根据权利要求116-127中任一项所述的光学镜头，其特征在于，所述第五透镜的像侧面至所述光学镜头的成像面在所述光轴上的距离BFL与所述第一透镜的物侧面至所述光学镜头的成像面在所述光轴上的距离TTL满足：BFL/TTL≥0.10。
  130. 根据权利要求116-127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、与所述最大视场角FOV对应的所述第一透镜的物侧面的最大通光口径D以及与所述最大视场角FOV对应的像高H满足：D/H/FOV≤0.08。
  131. 根据权利要求116-127中任一项所述的光学镜头，其特征在于，所述第三透镜的有效焦距F3与所述第四透镜的有效焦距F4满足：0.6≤|F3/F4|≤2.2。
  132. 根据权利要求116-127中任一项所述的光学镜头，其特征在于，所述第一透镜的有效焦距F1与所述光学镜头的总有效焦距F满足：4≤|F1/F|。
  133. 根据权利要求116-127中任一项所述的光学镜头，其特征在于，所述第一透镜至所述第五透镜中任意两个透镜在所述光轴上的中心厚度的比值中的最大值不大于3.5。
  134. 根据权利要求116-127中任一项所述的光学镜头，其特征在于，所述第一透镜的有效焦距F1与所述第二透镜的有效焦距F2满足：4≤|F1/F2|。
  135. 根据权利要求116-127中任一项所述的光学镜头，其特征在于，所述第二透镜的物侧面的曲率半径R4与所述第二透镜的像侧面的曲率半径R5满足：|(R4-R5)/(R4+R5)|≤8.5。
  136. 根据权利要求116-127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曲率半径R1与所述第一透镜的像侧面的曲率半径R2满足：0.5≤|R1/R2|≤1.5。
  137. 根据权利要求116-127中任一项所述的光学镜头，其特征在于，所述第一透镜和所述第二透镜在所述光轴上的间隔距离T12与所述第一透镜的物侧面至所述光学镜头的成像面在所述光轴上的距离TTL满足：0.02≤T12/TTL≤0.33。
  138. 根据权利要求116-127中任一项所述的光学镜头，其特征在于，所述第三透镜和所述第四透镜的组合焦距F34与所述光学镜头的总有效焦距F满足：0.2≤|F34/F|≤6.8。
  139. 一种电子设备，其特征在于，包括根据权利要求92或116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。
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