WO2024140350A1 - 镜头组件、摄像头模组及电子设备 - Google Patents
镜头组件、摄像头模组及电子设备 Download PDFInfo
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- WO2024140350A1 WO2024140350A1 PCT/CN2023/140022 CN2023140022W WO2024140350A1 WO 2024140350 A1 WO2024140350 A1 WO 2024140350A1 CN 2023140022 W CN2023140022 W CN 2023140022W WO 2024140350 A1 WO2024140350 A1 WO 2024140350A1
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- lens
- lens assembly
- camera module
- focal length
- lenses
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
-
- 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
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
- G02B9/64—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having more than six components
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/02—Diaphragms
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/04—Bodies collapsible, foldable or extensible, e.g. book type
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
Definitions
- the camera module includes a lens assembly and an image sensor. After passing through the lens assembly, the light is projected to the image sensor to realize photoelectric conversion, and then used for imaging.
- the lens assembly is usually formed by a plurality of lens lenses arranged in sequence along the optical axis direction, and the performance of the lens assembly directly determines the imaging performance of the camera module.
- the lens assembly With people's pursuit of imaging quality, the lens assembly is gradually developing in the direction of large aperture and large target surface imaging. For example, the user's requirements for capturing the details of the scene are gradually increasing, making the design of large aperture particularly important.
- the aperture of the camera module also directly affects the core functions of the camera such as night scene, video, and background blur.
- the large aperture and large target surface have a great influence on the improvement of brightness and resolution. Therefore, there is an urgent need for a lens assembly with both large aperture and large target surface characteristics to improve the imaging quality of the camera module.
- the embodiments of the present application provide a lens assembly, a camera module and an electronic device.
- the lens assembly implements a large aperture design to meet the requirements of infinite distance shooting scenes, and implements a macro shooting function with high magnification and resolution, and has a small size and low cost.
- a first aspect of an embodiment of the present application provides a lens assembly, comprising a plurality of lenses arranged in sequence from the object side to the image side along the optical axis, wherein there is a gap between any two adjacent lenses, wherein the gap between two adjacent lenses with the shortest length along the direction parallel to the optical axis is a first gap, and the largest length among the plurality of first gaps is a maximum gap.
- the lens assembly satisfies the condition: 0.35 ⁇ (TTL-Dgap)/(2*IMH) ⁇ 0.53, wherein IMH is the half-image height of the lens assembly, TTL is the total optical length of the lens assembly, and Dgap is the length of the maximum interval, so that the lens assembly has a smaller total optical length and a larger half-image height.
- some of the multiple lenses are located on the side of the maximum interval facing the object side, and some of the lenses can be moved along the optical axis to compress the maximum interval, thereby reducing the total optical length of the lens assembly and realizing miniaturization of the lens assembly.
- the part of the lenses located on the side of the maximum interval facing the object side can be moved along the optical axis toward the image side, thereby compressing the maximum interval, thereby significantly reducing the total optical length of the lens assembly, reducing the size of the camera module and the space occupied, and realizing an ultra-thin architecture of the camera module.
- the camera module 101 may further include a filter 30, which may be located between the lens assembly 10 and the image sensor 20.
- the light passing through the lens assembly 10 is irradiated onto the photosensitive surface of the image sensor 20 after passing through the filter 30.
- the filter 30 has a filtering effect, and can allow light within a specific wavelength range to pass through, thereby filtering stray light that is not conducive to imaging, which is conducive to improving imaging quality.
- the lens assembly 10 may include a plurality of lenses, each of which may have an optical power.
- the plurality of lenses may be arranged in sequence from the object side to the image side along the optical axis, and the optical axis of the lens assembly 10 may coincide with the central axis of the lens barrel.
- the focal length of the sixth lens 16 is f6, and the focal length of the sixth lens 16 and the focal length EFL of the lens assembly 10 can satisfy the condition: -1 ⁇ EFL/f6 ⁇ 0.1, which reasonably distributes the focal lengths of the first lens 11, the second lens 12, the fourth lens 14, the fifth lens 15, and the sixth lens 16, thereby enabling the lens assembly 10 to achieve a design with a large aperture and a large target surface, thereby improving the imaging quality.
- the above-mentioned combination of focal lengths can also achieve the correction of aberrations, which is further conducive to improving the imaging quality.
- the portion of the lens located on the side of the maximum interval facing the object side can be moved along the optical axis toward the image side, thereby compressing the maximum interval, thereby significantly reducing the total optical length of the lens assembly 10, reducing the size and occupied space of the camera module 101, and realizing an ultra-thin structure of the camera module 101.
- the part of the lens located on the side with the largest interval facing the object side can be moved along the optical axis toward the object side, so as to meet the imaging requirements of the lens assembly 10, so that the lens assembly 10 can achieve a large aperture and a high imaging quality with a large target surface, and the total optical length of the lens assembly 10 is relatively small at this time.
- the lens assembly 10 can meet the high imaging quality requirements of large aperture and large target surface.
- the first lens 11, the second lens 12, the third lens 13, the fourth lens 14 and the fifth lens 15 can move along the optical axis and compress the maximum interval.
- the entire lens assembly 10 is in a compressed state, further effectively reducing the total optical length of the lens assembly 10.
- the maximum interval that allows the lens to move to the maximum compression length can more effectively reduce the total optical length of the lens assembly 10 after compression, so that the lens assembly 10 has a smaller length as a whole.
- the part of the lens on the side of the maximum spacer can be moved along the optical axis, for example, along the optical axis toward the object side or toward the image side, and the distance between the lenses can be adjusted, for example, the distance between the part of the lens and other lenses is adjusted, such as the distance between the first lens 11, the second lens 12, the third lens 13, the fourth lens 14 and the fifth lens 15 and the sixth lens 16, the seventh lens 17 in FIG3, thereby changing the focal length of the lens assembly 10, realizing the focusing function, satisfying the normal focusing of different object distances, and further improving the imaging quality.
- the maximum interval with the largest length can also provide a larger moving space for the lens movement to meet a larger focusing demand.
- the number of lenses located on the side with the maximum interval facing the object side can be one, for example, when the first lens 11 and the second lens 12 have the maximum interval, the lens located on the side with the maximum interval facing the object side is the first lens 11, and only the first lens 11 moves.
- the number of lenses located on the side with the maximum interval facing the object side can be multiple, for example, when the second lens 12 and the third lens 13, or the third lens 13 and the fourth lens 14, or the fourth lens 14 and the fifth lens 15, or the sixth lens 16 and the seventh lens 17 have the maximum interval, the number of lenses located on the side with the maximum interval facing the object side is greater than or equal to two.
- the movement of the lenses can be an overall movement.
- the first lens 11, the second lens 12, the third lens 13, the fourth lens 14 and the fifth lens 15 can be used as a lens group, such as the first lens group
- the sixth lens 16 and the seventh lens 17 can be used as a lens group, such as the second lens group
- the first lens group as a whole can be moved relative to the second lens group along the optical axis to achieve compression of the maximum interval and focusing function.
- the lenses may be moved separately.
- the first lens 11, the second lens 12, the third lens 13, the fourth lens 14 and the fifth lens 15 may be moved toward the image side or toward the object side respectively to achieve compression of the maximum interval and focusing function.
- the camera module 101 is applied to an electronic device, and the arrangement direction of the lenses in the lens assembly 10, that is, the optical axis direction, can be consistent with the thickness direction of the electronic device.
- some lenses of the lens assembly 10 can be located outside the housing, so that the lens assembly 10 can achieve the design requirements of a large aperture and a large target surface.
- the portion of the lens on the side with the maximum interval facing the object side can be entirely located outside the shell, or only a portion of the lens on the side with the maximum interval facing the object side can be located outside the shell.
- the lenses on the side with the maximum interval facing the object side and part of the lenses on the side with the maximum interval facing the image side may be located outside the housing.
- the lens located on the side of the maximum interval facing the object side moves toward the image side, that is, moves toward the inside of the shell, compressing the maximum interval and making the lens assembly 10 compressed, thereby reducing the thickness of the camera module 101 in the non-working state and reducing the space occupied by the camera module 101 in the thickness direction of the electronic device, thereby meeting the thinning design of the electronic device and improving the aesthetics of the electronic device.
- all the lenses in the lens assembly 10 may be located inside the housing, or, in some other examples, part of the lenses in the lens assembly 10 may be located outside the housing.
- the lens assembly 10 can be made to satisfy the conditional formula: 0.7 ⁇ (TTL-Dgap)*TTL/IMH 2 ⁇ 1.7. It can be understood that the total optical length TTL of the lens assembly 10 minus the length of the maximum interval is the total optical length of the lens assembly 10 when it is not in operation.
- the lens assembly 10 satisfies the above conditional formula, which further ensures that the lens assembly 10 can take into account the design requirements of a large aperture and a large target surface.
- the lens assembly 10 has a smaller total optical length, which significantly reduces the length dimension of the camera module 101 when it is not in operation, and facilitates the thinning design of the electronic device 100.
- the range of the aperture number F# of the lens assembly 10 is: 1.4 ⁇ F# ⁇ 2.2.
- the aperture number F# is small, and a large aperture design of the lens assembly 10 is realized.
- the half field of view angle of the lens assembly 10 is in the range of 35° ⁇ HFOV ⁇ 49°.
- the lens assembly 10 has a large field of view angle, that is, the lens assembly 10 has a large field of view, realizing the wide-angle design of the lens assembly 10, enriching the functions of the lens assembly 10, and facilitating better shooting effects and imaging quality.
- the focal length EFL of the lens assembly 10 and the total optical length TTL of the lens assembly 10 can satisfy the conditional formula: 0 ⁇ EFL/TTL ⁇ 1. Under the condition of ensuring the imaging requirements of the lens assembly 10, the lens assembly 10 has a shorter total optical length, which facilitates the small-size design of the lens assembly 10.
- the Abbe number of the first lens 11 is vd1
- the Abbe number of the second lens 12 is vd2.
- the Abbe number vd1 of the first lens 11 and the Abbe number vd2 of the second lens 12 can satisfy the condition: vd1-vd2>25.
- the Abbe number of the second lens 12 can be smaller than the Abbe number of the first lens 11, and the refractive index of the second lens 12 can be higher than the refractive index of the first lens 11.
- the first lens 11 can be a lens with a low refractive index and a high Abbe number
- the second lens 12 can be a lens with a high refractive index and a low Abbe number.
- the difference in the Abbe number between the two is small, so that the first lens 11 and the second lens 12 can both be lenses with relatively small Abbe numbers, such as plastic lenses, which have relatively low costs, which helps to reduce the cost of the lens assembly 10.
- the Abbe numbers of the first lens 11 and the second lens 12 are relatively small.
- the first lens 11 and the second lens 12 can be thinner lenses with better performance. While taking into account the large aperture and large target surface performance, it helps to further reduce the thickness of the first lens 11 and the second lens 12, and can further reduce the total optical length of the lens assembly 10, which is conducive to the thinning of the camera module 101, so as to obtain a low-cost ultra-thin camera module 101 with good imaging quality.
- the curvature radius of the object side surface of the fifth lens 15 is R9, and the curvature radius of the image side surface of the fifth lens 15 is R10.
- the curvature radius R9 of the object side surface of the fifth lens 15 and the curvature radius R10 of the image side surface can satisfy the condition: R10/R9>-1.
- Reasonable allocation of the optical power of the fifth lens 15 is further conducive to achieving the design requirements of the lens assembly 10 with a large aperture and a large target surface.
- the multiple lenses in the lens assembly 10 can all be aspherical lenses, which can reduce or avoid the spherical aberration introduced by spherical lenses, have a good compensation effect on spherical aberration and distortion aberration, and are further conducive to achieving the large aperture performance of the lens assembly 10.
- FIG4 is a simulation schematic diagram of a camera module in working state provided in Embodiment 1 of the present application.
- the number of lenses N in the lens assembly can be 7, and along the direction of the optical axis, from the object side to the image side, they can be the first lens 11, the second lens 12, the third lens 13, the fourth lens 14, the fifth lens 15, the sixth lens 16 and the seventh lens 17, respectively.
- the fifth lens 15 and the sixth lens 16 have a maximum interval therebetween.
- the half image height IMH of the lens assembly 10 is 6.47 mm, the total optical length TTL of the lens assembly 10 is 7.86 mm, and the maximum interval Dgap is 2.06 mm.
- the first lens 11 has positive power, and the focal length f1 of the first lens 11 is 6.76 mm.
- the second lens 12 has negative optical power, and the focal length f2 of the second lens 12 is -28.39 mm.
- the fourth lens 14 has negative power, and the focal length f4 of the fourth lens 14 is -27.13 mm.
- the fifth lens 15 has positive refractive power, and the focal length f5 of the fifth lens 15 is 7.09 mm.
- the aperture number F# of the lens assembly 10 is 1.88.
- the half field of view angle HFOV of the lens assembly 10 is 43.29°.
- the Abbe number vd1 of the first lens 11 is 81.56
- the Abbe number vd2 of the second lens 12 is 18.82
- the curvature radius R9 of the object side surface of the fifth lens 15 is 15.29 mm, and the curvature radius R10 of the image side surface of the fifth lens 15 is -5.11 mm.
- Table 1 shows the optical parameters of each optical element in a camera module provided in Example 1 of the present application.
- L1 is the first lens 11
- L2 is the second lens 12
- L3 is the third lens 13
- L4 is the fourth lens 14
- L5 is the fifth lens 15
- L6 is the sixth lens 16
- L7 is the seventh lens 17
- S1 is the aperture 40
- IR is the filter 30.
- R is the radius of curvature of the optical element (such as a lens, filter, etc.) at the corresponding position of the optical axis.
- R0 is the radius of curvature of the aperture 40
- R1 and R2 are the radii of curvature of the first lens 11 on the object side and the image side, respectively
- R3 and R4 are the radii of curvature of the second lens 12 on the object side and the image side, respectively
- R5 and R6 are the radii of curvature of the third lens 13 on the object side and the image side, respectively
- R7 and R8 are the radii of curvature of the fourth lens 14 on the object side and the image side
- R9 and R10 are the radii of curvature of the fifth lens 15 on the object side and the image side, respectively
- R11 and R12 are the radii of curvature of the sixth lens 16 on the object side and the image side, respectively
- R13 and R14 are the radii of curvature of the seventh
- d is the thickness of the optical element along the optical axis or the thickness of the interval between the optical elements.
- d0 is the distance from the aperture 40 to the first lens 11.
- d9 is the distance between the fifth lens 15 and the object side of the sixth lens 16 along the optical axis
- d10 is the distance between the image side of the fifth lens 15 and the object side of the sixth lens 16 along the optical axis
- d11 is the thickness of the sixth lens 16 along the optical axis
- d12 is the distance between the image side of the sixth lens 16 and the object side of the seventh lens 17 along the optical axis
- d13 is the thickness of the seventh lens 17 along the optical axis
- d14 is the distance between the image side of the seventh lens 17 and the object side of the filter 30 along the optical axis
- d15 is the thickness of the filter along the optical axis
- d16 is the distance between the image side of the filter 30 and the photosensitive surface of the image sensor 20 along the optical axis.
- nd is the refractive index of the d-line irradiated to each optical element, wherein the d-line can be green light with a wavelength of 550nm.
- nd1 is the refractive index of the d-line of the first lens 11
- nd2 is the refractive index of the d-line of the second lens 12
- nd3 is the refractive index of the d-line of the third lens 13
- nd4 is the refractive index of the d-line of the fourth lens
- nd5 is the refractive index of the d-line of the fifth lens
- nd6 is the refractive index of the d-line of the sixth lens 16
- ndg is the refractive index of the d-line of the filter 30.
- vd is the Abbe number of the optical element.
- vd1 is the Abbe number of the first lens 11
- vd2 is the Abbe number of the second lens 12
- vd3 is the Abbe number of the third lens 13
- vd4 is the Abbe number of the fourth lens 14
- vd5 is the Abbe number of the fifth lens 15
- vd6 is the Abbe number of the sixth lens 16
- vdg is the Abbe number of the filter 30.
- Table 2 shows the aspheric coefficients of each lens in a lens assembly provided in Example 1 of the present application.
- each lens in the lens assembly 10 is an aspherical lens, that is, the lens assembly 10 includes 14 aspherical surfaces.
- the aspherical surface type z of each lens in the lens assembly 10 can be calculated by the following aspherical surface formula:
- each lens can be simulated to finally obtain the camera module 101 shown in FIG. 4 .
- optical parameters of the lens assembly 10 composed of the above lenses can be seen in Table 3 below.
- Table 3 shows the optical parameters of a lens assembly provided in Example 1 of the present application.
- FIG6 is an astigmatism field curvature diagram of a lens assembly provided in Example 1 of the present application, wherein FIG6 shows an astigmatism field curvature diagram of light with a wavelength of 555 nm after passing through the lens assembly 10, S is the field curvature in the sagittal direction, T is the field curvature in the meridional direction, the abscissa represents the magnitude of the field curvature, the lateral distance between T and S represents the magnitude of the astigmatism, and the ordinate represents the field of view.
- S is the field curvature in the sagittal direction
- T is the field curvature in the meridional direction
- the abscissa represents the magnitude of the field curvature
- the lateral distance between T and S represents the magnitude of the astigmatism
- the ordinate represents the field of view.
- the field curvature of the lens assembly 10 in both the sagittal and meridional directions is small, and has a high imaging quality.
- the number of lenses N in the lens assembly 10 may be 7, and along the direction of the optical axis, from the object side to the image side, the first lens 11, the second lens 12, the third lens 13, the fourth lens 14, the fifth lens 15, the sixth lens 16, the 16 and a seventh lens 17.
- the fifth lens 15 and the sixth lens 16 have a maximum interval therebetween.
- the fifth lens 15 has positive refractive power, and the focal length f5 of the fifth lens 15 is 7.61 mm.
- R is the radius of curvature of an optical element (such as a lens, a filter, etc.) at a position corresponding to the optical axis.
- the specific meanings of R0, R1, ..., R16 can be found in the first embodiment, and will not be repeated in the present embodiment.
- vd is the Abbe number of the optical element.
- the specific meanings of vd1, vd2, ..., vdg can be found in the first embodiment, and will not be repeated in the embodiments of the present application.
- Table 5 shows the aspheric coefficients of each lens in a lens assembly provided in Example 2 of the present application.
- Table 6 shows the optical parameters of a lens assembly provided in Example 2 of the present application.
- the aperture number F# of the lens assembly 10 is 1.59.
- the curvature radius R9 of the object side surface of the fifth lens 15 is 19.02 mm, and the curvature radius R10 of the image side surface of the fifth lens 15 is -5.04 mm.
- nd is the refractive index of each optical element irradiated by d-line, and the specific meanings of nd1, nd2, ..., ndg can be found in the first embodiment and will not be repeated in the embodiments of the present application.
- vd is the Abbe number of the optical element.
- the specific meanings of vd1, vd2, ..., vdg can be found in the first embodiment, and will not be repeated in the embodiments of the present application.
- Table 8 shows the aspheric coefficients of each lens in a lens assembly provided in Example 3 of the present application.
- each lens in the lens assembly 10 is an aspherical lens, that is, the lens assembly 10 includes 14 aspherical surfaces.
- the aspherical surface type z of each lens in the lens assembly 10 can be calculated by the following aspherical surface formula:
- optical parameters of the lens assembly composed of the above lenses can be seen in Table 9 below.
- Table 9 shows the optical parameters of a lens assembly provided in Example 3 of the present application.
- the lens assembly 10 provided in the third embodiment of the present application is a wide-angle lens having both large aperture and large target surface characteristics.
- FIG13 is an axial chromatic aberration curve diagram of a lens assembly provided in Example 3 of the present application, wherein the axial chromatic aberration illustrated in FIG13 is the axial chromatic aberration of light having wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, and 470 nm after passing through the lens assembly 10.
- the axial chromatic aberration of light after passing through the lens assembly 10 is small.
- Figure 14 is an astigmatism field curvature diagram of a lens assembly provided in Example 3 of the present application, wherein Figure 14 shows the astigmatism field curvature diagram after light with a wavelength of 555nm passes through the lens assembly 10. It can be seen from Figure 14 that the field curvature of the lens assembly 10 in both the sagittal direction and the meridional direction is small, and has a high imaging quality.
- Figure 15 is a distortion curve diagram of a lens assembly provided in Example 3 of the present application, wherein Figure 15 shows the distortion curve of light with a wavelength of 555nm after passing through the lens assembly 10. It can be seen from Figure 15 that the distortion amount of the image formed by the lens assembly 10 is small, and the difference between the image shape and the ideal shape is small, which meets the deformation difference requirement and has high imaging quality.
- FIG16 is a simulation schematic diagram of a camera module in working state provided in Embodiment 4 of the present application.
- the fifth lens 15 and the sixth lens 16 have a maximum interval therebetween.
- the half image height IMH of the lens assembly 10 is 6.47 mm, the total optical length TTL of the lens assembly 10 is 7.51 mm, and the maximum interval Dgap is 2.21 mm.
- the aperture number F# of the lens assembly 10 is 1.88.
- the Abbe number vd1 of the first lens 11 is 81.56
- the Abbe number vd2 of the second lens 12 is 18.12
- the curvature radius R9 of the object side surface of the fifth lens 15 is 18.55 mm, and the curvature radius R10 of the image side surface of the fifth lens 15 is -4.37 mm.
- each lens in the lens assembly 10 is an aspherical lens, that is, the lens assembly 10 includes 14 aspherical surfaces.
- the aspherical surface type z of each lens in the lens assembly 10 can be calculated by the following aspherical surface formula:
- optical parameters of the lens assembly composed of the above lenses can be seen in Table 12 below.
- FIG19 is a distortion curve diagram of a lens assembly provided in Example 4 of the present application, wherein FIG19 shows a distortion curve of light with a wavelength of 555 nm after passing through the lens assembly 10.
- the amount of distortion of the image formed by the lens assembly 10 is small, and the image shape is similar to the ideal image.
- the shape difference is small, which meets the deformation difference requirements and has high imaging quality.
- the number of lenses N in the lens assembly 10 can be 7, and along the direction of the optical axis, from the object side to the image side, they can be the first lens 11, the second lens 12, the third lens 13, the fourth lens 14, the fifth lens 15, the sixth lens 16 and the seventh lens 17, respectively.
- the half image height IMH of the lens assembly 10 is 6.45 mm, the total optical length TTL of the lens assembly 10 is 8.02 mm, and the maximum interval Dgap is 1.73 mm.
- the first lens 11 has positive power, and the focal length f1 of the first lens 11 is 7.46 mm.
- the aperture number F# of the lens assembly 10 is 1.77.
- the Abbe number vd1 of the first lens 11 is 56.04
- the Abbe number vd2 of the second lens 12 is 9.22
- the curvature radius R9 of the object side surface of the fifth lens 15 is -213.47 mm, and the curvature radius R10 of the image side surface of the fifth lens 15 is -5.45 mm.
- R is the radius of curvature of an optical element (such as a lens, a filter, etc.) at a position corresponding to the optical axis.
- the specific meanings of R0, R1, ..., R16 can be found in the first embodiment, and will not be repeated in the present embodiment.
- d is the thickness of the optical element along the optical axis or the thickness of the interval between the optical elements.
- the specific meanings of d0, d1, ..., d16 can be found in the first embodiment and will not be repeated in the embodiments of this application.
- each lens can be simulated to finally obtain the camera module 101 shown in FIG. 20.
- the lens assembly 10 provided in the fifth embodiment of the present application is a wide-angle lens having both large aperture and large target surface characteristics.
- FIG21 is an axial chromatic aberration curve diagram of a lens assembly provided in Example 5 of the present application, wherein the axial chromatic aberration illustrated in FIG21 is the axial chromatic aberration of light having wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, and 470 nm after passing through the lens assembly 10.
- the axial chromatic aberration of light after passing through the lens assembly 10 is small.
- Figure 24 is a simulation schematic diagram of a camera module in working state provided in Example 6 of the present application.
- the number N of lenses in the lens assembly 10 can be 7, and along the direction of the optical axis, from the object side to the image side, they can be the first lens 11, the second lens 12, the third lens 13, the fourth lens 14, the fifth lens 15, the sixth lens 16 and the seventh lens 17, respectively.
- the fifth lens 15 and the sixth lens 16 have a maximum interval therebetween.
- Table 18 shows the optical parameters of a lens assembly provided in Example 6 of the present application.
- the fifth lens 15 has positive refractive power, and the focal length f5 of the fifth lens 15 is 13.18 mm.
- the half field of view angle HFOV of the lens assembly 10 is 44.32°.
- the Abbe number vd1 of the first lens 11 is 56.04
- the Abbe number vd2 of the second lens 12 is 19.22
- L1 is the first lens 11
- L2 is the second lens 12
- L3 is the third lens 13
- L4 is the fourth lens 14
- L5 is the fifth lens 15
- L6 is the sixth lens 16
- L7 is the seventh lens 17
- S1 is the aperture 40
- IR is the filter 30.
- vd is the Abbe number of the optical element.
- the specific meanings of vd1, vd2, ..., vdg can be found in the first embodiment, and will not be repeated in the embodiments of the present application.
- Figure 31 is a distortion curve diagram of a lens assembly provided in Example 7 of the present application, wherein Figure 31 shows the distortion curve of light with a wavelength of 555nm after passing through the lens assembly 10. It can be seen from Figure 31 that the distortion amount of the image formed by the lens assembly 10 is small, and the difference between the image shape and the ideal shape is small, which meets the deformation difference requirement and has high imaging quality.
- Figure 32 is a simulation schematic diagram of a camera module in working state provided in Example 8 of the present application.
- the number of lenses N in the lens assembly 10 can be 7, and along the direction of the optical axis, from the object side to the image side, they can be the first lens 11, the second lens 12, the third lens 13, the fourth lens 14, the fifth lens 15, the sixth lens 16 and the seventh lens 17, respectively.
- the fourth lens 14 and the fifth lens 15 have a maximum interval therebetween.
- the first lens 11 has positive power, and the focal length f1 of the first lens 11 is 7.79 mm.
- the second lens 12 has negative optical power, and the focal length f2 of the second lens 12 is -24.59 mm.
- the fourth lens 14 has negative power, and the focal length f4 of the fourth lens 14 is -64.69 mm.
- the fifth lens 15 has positive refractive power, and the focal length f5 of the fifth lens 15 is 16.93 mm.
- the aperture number F# of the lens assembly 10 is 1.71.
- the half field of view angle HFOV of the lens assembly 10 is 47.51°.
- the Abbe number vd1 of the first lens 11 is 56.04
- the Abbe number vd2 of the second lens 12 is 19.22
- the curvature radius R9 of the object side surface of the fifth lens 15 is -6.78 mm, and the curvature radius R10 of the image side surface of the fifth lens 15 is -4.18 mm.
- Table 22 shows the optical parameters of each optical element in a camera module provided in Example 8 of the present application.
- L1 is the first lens 11
- L2 is the second lens 12
- L3 is the third lens 13
- L4 is the fourth lens 14
- L5 is the fifth lens 15
- L6 is the sixth lens 16
- L7 is the seventh lens 17
- S1 is the aperture 40
- IR is the filter 30.
- R is the radius of curvature of an optical element (such as a lens, a filter, etc.) at a position corresponding to the optical axis.
- the specific meanings of R0, R1, ..., R16 can be found in the first embodiment, and will not be repeated in the present embodiment.
- nd is the refractive index of each optical element irradiated by d-line, and the specific meanings of nd1, nd2, ..., ndg can be found in the first embodiment and will not be repeated in the embodiments of the present application.
- vd is the Abbe number of the optical element.
- the specific meanings of vd1, vd2, ..., vdg can be found in the first embodiment, and will not be repeated in the embodiments of the present application.
- Table 23 shows the aspheric coefficients of each lens in a lens assembly provided in Example 8 of the present application.
- each lens in the lens assembly 10 is an aspherical lens, that is, the lens assembly 10 includes 14 aspherical surfaces.
- the aspherical surface type z of each lens in the lens assembly 10 can be calculated by the following aspherical surface formula:
- optical parameters of the lens assembly composed of the above lenses can be seen in Table 24 below.
- the lens assembly 10 provided in Example 8 of the present application is a wide-angle lens with both large aperture and large target surface characteristics.
- FIG33 is an axial chromatic aberration curve diagram of a lens assembly provided in Example 8 of the present application, wherein the axial chromatic aberration illustrated in FIG33 is the axial chromatic aberration of light having wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, and 470 nm after passing through the lens assembly 10.
- the axial chromatic aberration of light after passing through the lens assembly 10 is small.
- Figure 34 is an astigmatism field curvature diagram of a lens assembly provided in Example 8 of the present application, wherein Figure 34 shows the astigmatism field curvature diagram of light with a wavelength of 555nm after passing through the lens assembly 10. It can be seen from Figure 34 that the field curvature of the lens assembly 10 in the sagittal direction and the meridional direction are small, and has a high imaging quality.
- Figure 35 is a distortion curve diagram of a lens assembly provided in Example 8 of the present application, wherein Figure 35 shows the distortion curve of light with a wavelength of 555nm after passing through the lens assembly 10. It can be seen from Figure 35 that the distortion amount of the image formed by the lens assembly 10 is small, and the difference between the image shape and the ideal shape is small, which meets the deformation difference requirement and has high imaging quality.
- the terms “installed”, “connected”, and “connected” should be understood in a broad sense.
- it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components.
- the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
- the terms “first”, “second”, “third”, “fourth”, etc. (if any) are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.
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Abstract
Description
Claims (13)
- 一种镜头组件,其特征在于,包括沿着光轴方向从物侧至像侧依次排列的多个镜片,任意相邻的两个镜片之间具有间隔,在两相邻镜片的所述间隔中沿平行于光轴方向上长度最小的为第一间隔,所述多个镜片之间的多个第一间隔中长度最大的为最大间隔;所述镜头组件满足条件式:0.35≤(TTL-Dgap)/(2*IMH)≤0.53,其中,IMH为所述镜头组件的半像高,TTL为所述镜头组件的光学总长,Dgap为所述最大间隔的长度;多个所述镜片至少包括从物侧至像侧排列的第一镜片、第二镜片、第三镜片、第四镜片、第五镜片、第六镜片和第七镜片;所述第一镜片、所述第五镜片分别具有正光焦度,所述第二镜片、所述第四镜片分别具有负光焦度,所述第一镜片的焦距f1与所述镜头组件的焦距EFL满足条件式:1<f1/EFL<3,所述第六镜片的焦距f6与所述镜头组件的焦距EFL满足条件式:-1<EFL/f6<0.1。
- 根据权利要求1所述的镜头组件,其特征在于,多个所述镜片中部分镜片位于所述最大间隔面向物侧的一侧,所述部分镜片可沿光轴方向移动,以压缩所述最大间隔。
- 根据权利要求1或2所述的镜头组件,其特征在于,所述镜头组件满足条件式:0.7≤(TTL-Dgap)*TTL/IMH2≤1.7。
- 根据权利要求1-3任一所述的镜头组件,其特征在于,所述镜片的数量N的范围为:7≤N≤10。
- 根据权利要求1-4任一所述的镜头组件,其特征在于,所述镜头组件的的光圈数F#的范围为:1.4≤F#≤2.2。
- 根据权利要求1-5任一所述的镜头组件,其特征在于,所述镜头组件的半视场角HFOV的范围为:35°<HFOV<49°。
- 根据权利要求1-6任一所述的镜头组件,其特征在于,所述镜头组件的焦距EFL和所述镜头组件的光学总长TTL满足条件式:0<EFL/TTL<1。
- 根据权利要求1-7任一所述的镜头组件,其特征在于,所述第一镜片的阿贝数vd1与所述第二镜片的阿贝数vd2满足条件式:vd1-vd2>25。
- 根据权利要求1-8任一所述的镜头组件,其特征在于,所述第五镜片的物侧面的曲率半径R9与所述第五镜片像侧面的曲率半径R10满足条件式:R10/R9>-1。
- 根据权利要求1-9任一所述的镜头组件,其特征在于,所述镜片为非球面镜片。
- 一种摄像头模组,其特征在于,包括图像传感器和上述权利要求1-10任一所述的镜头组件,所述图像传感器位于所述镜头组件面向所述像侧的一侧。
- 一种电子设备,其特征在于,包括壳体和上述权利要求11所述的摄像头模组,所述摄像头模组设置在所述壳体上。
- 根据权利要求12所述的电子设备,其特征在于,当所述摄像头模组处于工作状态,所述镜头组件的部分所述镜片位于所述壳体外;当所述摄像头模组由工作状态向非工作状态切换时,位于所述最大间隔面向物侧一侧的所述部分镜片朝向所述壳体内移动。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP23910280.9A EP4603887A4 (en) | 2022-12-29 | 2023-12-19 | CAMERA LENS ASSEMBLY, CAMERA MODULE AND ELECTRONIC DEVICE |
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| CN202211711805.8 | 2022-12-29 | ||
| CN202211711805.8A CN118276285A (zh) | 2022-12-29 | 2022-12-29 | 镜头组件、摄像头模组及电子设备 |
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| PCT/CN2023/140022 Ceased WO2024140350A1 (zh) | 2022-12-29 | 2023-12-19 | 镜头组件、摄像头模组及电子设备 |
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| EP (1) | EP4603887A4 (zh) |
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| CN119439432A (zh) * | 2023-07-31 | 2025-02-14 | 华为技术有限公司 | 镜头组件、摄像头模组及电子设备 |
| CN121857175A (zh) * | 2024-10-11 | 2026-04-14 | 华为技术有限公司 | 光学镜头、摄像模组及电子设备 |
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| US20190212524A1 (en) * | 2017-08-10 | 2019-07-11 | Kantatsu Co., Ltd. | Imaging lens |
| US20190212532A1 (en) * | 2017-08-09 | 2019-07-11 | Kantatsu Co., Ltd. | Imaging lens |
| CN113589503A (zh) * | 2021-07-12 | 2021-11-02 | 浙江大华技术股份有限公司 | 一种镜头 |
| CN114047595A (zh) * | 2021-09-30 | 2022-02-15 | 华为技术有限公司 | 一种镜头组件、摄像头模组及电子设备 |
| CN114815137A (zh) * | 2021-01-27 | 2022-07-29 | 华为技术有限公司 | 一种光学镜头、摄像头模组及电子设备 |
| CN217561811U (zh) * | 2021-09-30 | 2022-10-11 | 华为技术有限公司 | 一种镜头组件、摄像头模组及电子设备 |
| CN115390219A (zh) * | 2021-05-25 | 2022-11-25 | 华为技术有限公司 | 光学镜头、镜头模组和电子设备 |
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| KR102662849B1 (ko) * | 2016-11-28 | 2024-05-03 | 삼성전기주식회사 | 촬상 광학계 |
| TWI651565B (zh) * | 2018-02-22 | 2019-02-21 | Largan Precision Co.,Ltd. | 成像光學鏡頭、取像裝置及電子裝置 |
| KR102609160B1 (ko) * | 2020-09-24 | 2023-12-05 | 삼성전기주식회사 | 촬상 광학계 |
| CN114815168B (zh) * | 2022-05-27 | 2024-04-19 | 浙江舜宇光学有限公司 | 光学成像镜头 |
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2022
- 2022-12-29 CN CN202211711805.8A patent/CN118276285A/zh active Pending
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2023
- 2023-12-19 WO PCT/CN2023/140022 patent/WO2024140350A1/zh not_active Ceased
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| US20190212532A1 (en) * | 2017-08-09 | 2019-07-11 | Kantatsu Co., Ltd. | Imaging lens |
| US20190212524A1 (en) * | 2017-08-10 | 2019-07-11 | Kantatsu Co., Ltd. | Imaging lens |
| CN114815137A (zh) * | 2021-01-27 | 2022-07-29 | 华为技术有限公司 | 一种光学镜头、摄像头模组及电子设备 |
| CN115390219A (zh) * | 2021-05-25 | 2022-11-25 | 华为技术有限公司 | 光学镜头、镜头模组和电子设备 |
| CN113589503A (zh) * | 2021-07-12 | 2021-11-02 | 浙江大华技术股份有限公司 | 一种镜头 |
| CN114047595A (zh) * | 2021-09-30 | 2022-02-15 | 华为技术有限公司 | 一种镜头组件、摄像头模组及电子设备 |
| CN217561811U (zh) * | 2021-09-30 | 2022-10-11 | 华为技术有限公司 | 一种镜头组件、摄像头模组及电子设备 |
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Also Published As
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| EP4603887A1 (en) | 2025-08-20 |
| EP4603887A4 (en) | 2026-01-14 |
| CN118276285A (zh) | 2024-07-02 |
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