WO2020073735A1 - 一体式镜筒、光学镜头、摄像模组及组装方法 - Google Patents

一体式镜筒、光学镜头、摄像模组及组装方法 Download PDF

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Publication number
WO2020073735A1
WO2020073735A1 PCT/CN2019/101274 CN2019101274W WO2020073735A1 WO 2020073735 A1 WO2020073735 A1 WO 2020073735A1 CN 2019101274 W CN2019101274 W CN 2019101274W WO 2020073735 A1 WO2020073735 A1 WO 2020073735A1
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WO
WIPO (PCT)
Prior art keywords
lens
lens group
optical
segment
inner extension
Prior art date
Application number
PCT/CN2019/101274
Other languages
English (en)
French (fr)
Inventor
陈振宇
周凯伦
褚水佳
蒋恒
刘林
Original Assignee
宁波舜宇光电信息有限公司
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 CN201811171784.9A external-priority patent/CN111025513A/zh
Priority claimed from CN201821631668.6U external-priority patent/CN209387954U/zh
Application filed by 宁波舜宇光电信息有限公司 filed Critical 宁波舜宇光电信息有限公司
Priority to EP19870780.4A priority Critical patent/EP3848740B1/en
Priority to US17/283,681 priority patent/US20210352196A1/en
Publication of WO2020073735A1 publication Critical patent/WO2020073735A1/zh

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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
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/022—Mountings, adjusting means, or light-tight connections, for optical elements for lenses lens and mount having complementary engagement means, e.g. screw/thread
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/023—Mountings, adjusting means, or light-tight connections, for optical elements for lenses permitting adjustment
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/025—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using glue
    • 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
    • G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/026—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using retaining rings or springs

Definitions

  • the present application relates to the field of optical imaging technology. Specifically, the present application relates to an integrated lens barrel, optical lens, camera module, and assembly method.
  • the factors that affect the lens resolution come from the errors of each component and its assembly, the error of the thickness of the lens spacing element, the error of the assembly of each lens, and the change in the refractive index of the lens material. Because there are many factors that affect the resolution of the lens, it exists in multiple components, and the control of each factor has the limit of manufacturing accuracy. If it is only to improve the accuracy of each component, the lifting capacity is limited, the cost is high, and it cannot meet the increasing market The demand for improved imaging quality.
  • This solution can improve the process capability index (CPK) of mass-produced optical lenses or camera modules; it can enable the various components of materials (such as sub-lenses or photosensitive components used to assemble optical lenses or camera modules)
  • the requirements for precision and assembly accuracy become looser, thereby reducing the overall cost of the optical imaging lens and the camera module; it can adjust various aberrations of the camera module in real time during the assembly process, reduce the defect rate, reduce the production cost, and improve Image quality.
  • the present application provides a solution capable of overcoming at least one drawback of the prior art.
  • an integrated lens barrel including: a cylindrical body having an inner side and a central axis; and an inner extension portion, the inner extension portion extending from the inner side toward the central axis and The middle portion of the inner extension portion has a light through hole, the inner extension portion divides the inner side surface into a first segment and a second segment, and the top surface of the inner extension portion and the first segment constitute an appropriate For accommodating the first groove of the first lens group, the bottom surface of the inner extension and the second segment form a second groove suitable for accommodating the second lens group.
  • the first segment has a closed ring shape when viewed from above.
  • the first segment has a concave segment, and the concave segment is recessed from the inner side of the cylindrical body toward the outer side of the cylindrical body.
  • the first segment has a notched ring shape when viewed from above.
  • the top surface of the inner extension is suitable for arranging glue.
  • the second section has a multi-step, the multi-step is suitable for sequentially embedding a plurality of second lenses to assemble the second lens group; the bottom surface of the inner extension is suitable for bearing the In the second lens group, the top surface of the inner extension is suitable for arranging glue to bond the first lens group.
  • an optical lens including: an integrated lens barrel including a cylindrical body having an inner side and a central axis; and an inner extension, the inner An extension portion extends inward from the inner side surface and a central portion of the inner extension portion has a light through hole, the inner extension portion divides the inner side surface into a first segment and a second segment, wherein the inner extension portion
  • the top surface of the first segment and the first segment form a first groove, the bottom surface of the inner extension and the second segment form a second groove;
  • a first lens group which includes a single first lens or rely on the lens A plurality of first lenses assembled together by fitting or bonding between them;
  • the cured first adhesive material supports and fixes the first lens group and the integrated lens barrel, so that the relative positions of the first lens group and the second lens group are maintained based on the The relative position determined by the active calibration of the imaging results of the optical system.
  • the first segment has a closed ring shape when viewed from above.
  • the first segment has a concave segment, and the concave segment is recessed from the inner side of the cylindrical body toward the outer side of the cylindrical body.
  • the top surface of the cylindrical body is bonded with a shading plate, the shading plate forms an aperture, and no glue material is filled between the shading plate and the first lens group.
  • the first lens group includes an optical zone and a structural zone surrounding the optical zone, the top surface of the structural zone is bonded with a shading plate, the shading plate forms an aperture, and the shading plate and the barrel No glue material is filled between the top surfaces of the shaped body.
  • the first segment has a notched ring shape when viewed from above.
  • the top surface of the cylindrical body is bonded with a shading plate to form an aperture
  • the shading plate has a side baffle adapted to the notch, and there is no gap between the shading plate and the first lens group Fill the plastic.
  • the first lens group includes an optical zone and a structural zone surrounding the optical zone, the top surface of the structural zone is bonded with a shading plate to form an aperture, and the shading plate has a side adapted to the notch
  • the baffle is not filled with glue material between the shading plate and the top surface of the cylindrical body.
  • the shading plate is made of metal or suitable for the appearance surface.
  • the material of the shading plate and the integrated lens barrel are the same, and the material of the glue for bonding the shading plate is the same as the material of the first glue material.
  • the first lens group includes an optical zone and a structural zone surrounding the optical zone, a light shielding layer is attached to an outer surface of the structural zone, and a top surface of the structural zone is higher than a top surface of the integrated lens barrel .
  • the shading layer blocks visible light and transmits non-visible light in a specific wavelength band, and the non-visible light in the specific wavelength band is light that triggers a curing reaction of the first glue material.
  • the second segment has multiple steps, and the multiple steps are suitable for embedding multiple second lenses in sequence to form the second lens group.
  • cylindrical body and the inner extension are integrally formed.
  • a camera module which includes any of the foregoing optical lenses.
  • an optical lens assembling method comprising: mounting a second lens group on the integrated lens barrel to form a second lens component, wherein the integrated lens barrel includes a barrel Shaped body and an inner extension, the cylindrical body has an inner side and a central axis, the inner extension extends inward from the inner side and the middle of the inner extension has a light through hole, the inner extension will The inner side is divided into a first segment and a second segment, wherein the top surface of the inner extension and the first segment form a first groove, and the bottom surface of the inner extension and the second Segments form a second groove, the second lens group includes at least one second lens, the second lens group bears against the bottom surface of the inner extension and is placed in the second groove; The first lens group is placed in the first groove, wherein the first lens group includes a single first lens or a plurality of first lenses grouped together by interaction of the lenses themselves; for the first lens The lens group and the second lens component are pre-positioned so that the first A lens group
  • the first segment has a closed ring shape when viewed from above; in the predetermined position and the active calibration, the first lens group is moved by a clamp, and the first segment is There is a gap between the sides of the first lens group to accommodate the jig.
  • the first segment has a notched ring shape when viewed from above; in the pre-positioning and the active calibration, the first lens group is moved with a clamp, and the clamp passes through the gap Reach into the integrated lens barrel and clamp the first lens group.
  • the second segment has a multi-step; installing the second lens group on the integrated lens barrel includes: embedding the at least one second lens in the multi-step in order to form the step
  • the second lens group constitutes the second lens component.
  • the first glue material is only arranged on the bottom surface and the inner extension of the first lens group Between the top surfaces of the first lens group; or the first adhesive material is arranged both between the bottom surface of the first lens group and the top surface of the inner extension, as well as the side surfaces of the first lens group and the Between the first segment.
  • the first lens group includes an optical zone and a structural zone surrounding the optical zone; the method of assembling the optical lens further includes: adhering a shading plate on the top surface of the structural zone, and the shading plate and the lens No glue material is filled between the top surfaces of the cylindrical body.
  • the method for assembling the optical lens further includes: adhering a light shielding plate on the top surface of the cylindrical body, and no glue material is filled between the light shielding plate and the top surface of the first lens group.
  • the light shielding plate is adhered.
  • the bonding of the first lens group and the first groove through the first glue material includes the steps of cloth glue, exposure and baking performed in sequence; the step of adhering the shading plate is after exposure 1. Execute before baking.
  • a method for assembling a camera module which includes: assembling an optical lens by using any of the foregoing optical lens assembling methods; and assembling a camera module based on the optical lens.
  • This application can reduce the source of variation of the optical lens based on the active calibration process, thereby improving imaging quality and yield.
  • an integrated lens barrel can be used instead of a split lens barrel, which provides high mechanical reliability of the optical lens based on active calibration, and can suppress optical performance variations caused by baking, high temperature and high humidity.
  • the exposure can be transmitted from directly above when the adhesive is cured. Helps to improve the imaging quality of optical lenses.
  • a metal shading plate can be used to reduce the height of the optical lens or camera module.
  • the shading plate can be used as the appearance surface, thereby reducing the height of the optical lens or the camera module and reducing the assembly process.
  • FIG. 1 shows a schematic cross-sectional view of an optical lens 1000 according to an embodiment of the present application
  • FIG. 2 shows a schematic cross-sectional view of an optical lens 1000 in another embodiment of the present application
  • FIG. 3 shows an optical lens based on active calibration using a split lens barrel in a comparative example
  • FIG. 4 shows a schematic top view of an integrated lens barrel 300 according to an embodiment of the present application
  • FIG. 5 shows a schematic cross-sectional view of the integrated lens barrel 300 shown in FIG. 4;
  • FIG. 6 shows a schematic top view of an integrated lens barrel 300 according to another embodiment of the present application.
  • FIG. 7 shows a schematic cross-sectional view of the integrated lens barrel 300 shown in FIG. 6;
  • FIG. 8 is a schematic diagram of an optical lens using the integrated lens barrel 300 shown in FIG. 6 according to an embodiment of the present application;
  • FIG. 11 shows a schematic top view of an integrated lens barrel 300 according to a modified embodiment of the present application.
  • FIG. 14B shows the rotation adjustment in active calibration according to another embodiment of the present application.
  • FIG. 14C shows a relative position adjustment manner in which adjustments in the v and w directions are added in active calibration according to yet another embodiment of the present application.
  • first, second, etc. are only used to distinguish one feature from another feature, and do not represent any limitation on the feature. Therefore, without departing from the teachings of the present application, the first body discussed below may also be referred to as the second body.
  • the terms “substantially”, “approximately”, and similar terms are used as an approximation term, not as a degree term, and indicate that the measurement value or The inherent deviation in the calculated value.
  • FIG. 1 shows a schematic cross-sectional view of an optical lens 1000 according to an embodiment of the present application.
  • the optical lens 1000 of this embodiment includes an integrated lens barrel 300, a first lens group 100, a second lens group 200 and a first glue 400.
  • the integrated lens barrel 300 includes a cylindrical body 301 and an inner extension 302 extending from the inner surface of the cylindrical body 301.
  • the cylindrical body 301 and the inner extension 302 are integrally formed.
  • the cylindrical body 301 has an inner side and a central axis.
  • the inner extension 302 extends from the inner side toward the central axis and has a light hole 302a in the middle, the inner extension 302 divides the inner side into a first segment 3011 and a second segment 3012, wherein the The top surface of the inner extension 302 and the first segment 3011 form a first groove, and the bottom surface of the inner extension 302 and the second segment 3012 form a second groove.
  • the first lens group 100 is composed of a single first lens. It should be noted that the present application is not limited to this.
  • FIG. 2 shows a schematic cross-sectional view of an optical lens 1000 in another embodiment of the present application.
  • the first lens group 100 may be composed of a plurality of first lenses assembled together by virtue of the interaction of the lenses themselves (for example, a plurality of first lenses that are fitted or bonded to each other).
  • the second lens group 200 includes at least one second lens.
  • the second lens group 200 rests on the bottom surface of the inner extension 302 and is placed in the second groove.
  • the first lens group 100 and the lens The second lens group 200 together constitute an imageable optical system.
  • the first glue 400 is located between the first lens group 100 and the first groove.
  • the first adhesive 400 is suitable for supporting and fixing the first lens group 100 and the integrated lens barrel 300 after curing, so that the relative positions of the first lens group 100 and the second lens group 200 are maintained The relative position determined by active calibration based on the imaging result of the optical system.
  • the integrated lens barrel 300 is used instead of the split lens barrel, which provides high mechanical reliability of the optical lens based on active calibration, and can suppress the optical performance variation caused by baking, high temperature and high humidity (because of Reduced sources of variation under conditions such as baking).
  • FIG. 3 shows an optical lens based on active calibration using a split lens barrel in a comparative example.
  • the optical lens includes a first lens component and a second lens component, wherein the first lens component includes a first lens barrel 800 and a first lens mounted in the first lens barrel 800, and the second lens component includes a second The lens barrel 900 and a plurality of second lenses mounted in the second lens barrel 900.
  • the first lens component and the second lens component are each actively calibrated as a whole and the relative position between the two is determined, and then the first lens component and the second lens component are bonded with the first adhesive 400 to support and fix the first lens component A lens component and a second lens component.
  • the structural strength of the lens barrel (especially the first lens barrel 800) is relatively insufficient, resulting in a low mechanical reliability.
  • the first glue 400 and the lens barrel (especially the first lens barrel 800) may mutate, causing the relative position of the first lens and the second lens to change, thereby losing ( Or reduce) the optical performance (ie optical performance variation) obtained by active calibration.
  • the integrated lens barrel 300 used in this application can overcome the above-mentioned problems.
  • FIG. 4 shows a schematic top view of the integrated lens barrel 300 according to an embodiment of the present application.
  • the first segment 3011 has a closed ring shape when viewed from above.
  • the first section 3011 has a concave section 3011a, which is recessed in a direction from the inner side of the cylindrical body 301 to the outer side of the cylindrical body 301.
  • FIG. 5 shows a schematic cross-sectional view of the integrated lens barrel 300 shown in FIG. 4. Referring to FIGS.
  • the first segment 3011 on the inner side of the integrated lens barrel 300 has a concave segment 3011 a between the outer side of the first lens group 100 and the concave segment 3011 a
  • the gap can accommodate the clamping jaws so that the clamping jaws clamp the first lens group 100 in the first groove 303 for active calibration.
  • the second lens group 200 has been embedded in the second groove 304 of the integrated lens barrel 300.
  • FIG. 6 shows a schematic top view of an integrated lens barrel 300 according to another embodiment of the present application.
  • the first segment 3011 has a notched ring shape when viewed from above. Since the first segment 3011 has a notch 3011b, the integrated lens barrel 300 can avoid the clamping jaws, so that the clamping jaws clamp the first lens group 100 to perform active calibration in the first groove.
  • FIG. 7 shows a schematic cross-sectional view of the integrated lens barrel 300 shown in FIG. 6.
  • FIG. 8 shows a schematic diagram of an optical lens using the integrated lens barrel 300 shown in FIG. 6 according to an embodiment of the present application.
  • the second segment 3012 has a multi-step, the multi-step is suitable for sequentially embedding a plurality of second lenses to form the second Lens group 200.
  • the integrated lens and the plurality of second lenses form an integral second lens component, and the first lens group 100 separately constitutes the first lens component.
  • the active calibration described above is the first The relative positions of the lens component and the second lens component are calibrated.
  • the surface of the structure area 103 of the first lens group 100 (including the top surface and side surfaces of the structure area 103, and sometimes may further include the bottom surface of the structure area 103 ) Attach the light-shielding layer 101.
  • the structure area 103 is an area surrounding the optical area 102.
  • the optical zone 102 is an area of the lens group for optical imaging.
  • the light-shielding layer 101 may be a coating that does not transmit visible light but only transmits ultraviolet light. In this way, the first glue material 400 can be selected from glue materials triggered by ultraviolet light.
  • the coating that is, the light-shielding layer 101 does not transmit visible light to block stray light or serve as an aperture.
  • the first adhesive material 400 may also be an adhesive material whose curing is triggered by other wavelength bands.
  • the light shielding layer 101 does not transmit visible light and only transmits the light of the wavelength band that triggers the curing of the first adhesive material 400.
  • FIG. 9 shows an optical lens of a modified embodiment of the present application.
  • This embodiment is based on the embodiment of FIG. 1, and a light shield 500 is added.
  • the first lens or the first lens group 100
  • the shading plate 500 may be adhered to the top surface of the integrated lens barrel 300 (referring to the top surface of the cylindrical body 301).
  • the light-shielding plate 500 is not in contact with the first lens (the gap is maintained between the two, and adhesive is not used).
  • the shading mechanism (that is, the shading plate 500) does not participate in the assembly process involving active calibration, so there is no need for height measurement, the surface roughness does not need to be made small to ensure high accuracy, and the number of scratches is reduced (the smoother the more Easy to scratch).
  • the shading mechanism can be separated from the lens (for comparison, the first lens barrel 800 realizes the shading function in the aforementioned comparative example), since it is no longer bonded to the lens, the choice of its material is no longer affected by the lower group of mirrors Limitation of the barrel (ie, the second lens barrel) (In comparison, in the aforementioned comparative example, due to the fact that the coefficient of linear expansion of the material on both sides of the adhesive material is close to the consideration of reducing the performance variation of the optical system under baking and other conditions). Therefore, the material of the shading plate 500 can be metal, so that the shading plate 500 can be made thinner.
  • the material of the shading plate 500 can also be PET polyester, which has stable mechanochemical properties and can be directly used as the appearance surface.
  • the final optical lens product needs a PET polyester sheet on the outermost surface of the lens as the appearance surface.
  • FIG. 10 shows an optical lens of another modified embodiment of the present application.
  • This embodiment is also based on the embodiment of FIG. 1, and a light shield 500 is added.
  • the first lens (or the first lens group 100) may not be attached to the light shielding layer.
  • the shading plate 500 is adhered to the top surface of the structural area 103 of the first lens (or the first lens group 100). An air gap is maintained between the light shielding plate 500 and the top surface of the cylindrical body 301, that is, no glue is arranged between the two.
  • the shading mechanism (that is, the shading plate 500) does not participate in the assembly process involving active calibration, so there is no need for height measurement, the surface roughness does not need to be made small to ensure high accuracy, and the number of scratches is reduced (the smoother the more Easy to scratch).
  • the shading mechanism is preferably the same material as the integrated lens barrel 300, and the glue material is also the same material as the integrated lens barrel and the upper group of lenses, that is, the glue material 501 for bonding the shading mechanism and the first glue material 400 the same.
  • the purpose of the first lens group 100 is to make the variation of the adhesive materials on both sides consistent under baking and other conditions, and to minimize the degradation of the performance of the optical system.
  • FIG. 11 shows a schematic plan view of the integrated lens barrel 300 according to a modified embodiment of the present application.
  • the first segment 3011 of the integrated lens barrel 300 has a ring shape and no concave segment is provided.
  • the diameter of the first segment 3011 may be larger than the diameter of the outer side of the first lens (or the first lens group 100), so as to be outside the first segment 3011 and the first lens (or the first lens group 100)
  • a space for accommodating the clamping jaws is formed between the sides, so as to avoid the clamping jaws from being clamped.
  • the outer surface of the first lens (or the first lens group 100) is optionally applied with glue to bond with the integrated lens barrel 300.
  • FIG. 12 shows an optical lens of another modified embodiment of the present application.
  • this embodiment is different in that a light shield 500 is added, and the light shield 500 has a side baffle 502 adapted to the notch of the first segment 3011.
  • the first lens or the first lens group 100
  • the light blocking plate 500 may be adhered to the top surface of the cylindrical body 301. The light-shielding plate 500 is not in contact with the first lens (the gap is maintained between the two, and adhesive is not used).
  • the shading mechanism (that is, the shading plate 500) does not participate in the assembly process involving active calibration, so there is no need for height measurement, and the surface roughness does not need to be made small to ensure high measurement accuracy, and the number of scratches is reduced.
  • the shading mechanism since the shading mechanism can be separated from the lens, since it is no longer bonded to the lens, the selection of its material is no longer restricted by the lower group lens barrel (ie, the second lens barrel). Therefore, the material of the shading plate 500 can be metal, so that the shading plate 500 can be made thinner.
  • the material of the shading plate 500 can also be PET polyester, which has stable mechanochemical properties and can be directly used as the appearance surface.
  • the final optical lens product needs a PET polyester sheet on the outermost surface of the lens as the appearance surface.
  • FIG. 13 shows an optical lens of another modified embodiment of the present application.
  • this embodiment is different in that a light shield 500 is added, and the light shield 500 has a side baffle 502 adapted to the notch of the first segment 3011.
  • the first lens or the first lens group 100
  • the area of the embodiment shown in FIG. 12 is that in this embodiment, the light shielding plate 500 is adhered to the top surface of the structural area 103 of the first lens (or the first lens group 100).
  • the air shield 500 and the top surface of the cylindrical body 301 maintain an air gap, that is, no glue is arranged between the two.
  • the shading mechanism (that is, the shading plate 500) does not participate in the assembly process involving active calibration, so there is no need for height measurement, the surface roughness does not need to be made small to ensure high accuracy, and the number of scratches is reduced (the smoother the more Easy to scratch).
  • the adhesive shading mechanism is preferably the same material as the integrated lens barrel 300, and the adhesive material is also the same material as the integrated lens barrel and the upper group of lenses, that is, the adhesive material 501 for bonding the shading mechanism and the first adhesive material
  • the 400 material is the same.
  • the purpose of the first lens group 100 is to make the variation of the adhesive materials on both sides consistent under baking and other conditions, and to minimize the degradation of the performance of the optical system.
  • the top surface of the inner extension 302 is suitable for arranging glue, for example, the inner extension 302 has a certain dimension in a direction perpendicular to the central axis, so as to arrange the glue.
  • a camera module is further provided.
  • the camera module may include the optical lens of any one of the foregoing embodiments.
  • an optical lens assembling method including the following steps.
  • a second lens group is mounted on the integrated lens barrel to form a second lens component
  • the integrated lens barrel includes a cylindrical body and an inner extension
  • the cylindrical body has an inner side and a central axis
  • the inner extension portion extends inward from the inner surface and the middle portion of the inner extension portion has a light through hole
  • the inner extension portion divides the inner side surface into a first segment and a second segment, wherein The top surface of the inner extension and the first segment form a first groove, the bottom surface of the inner extension and the second segment form a second groove
  • the second lens group includes at least one first Two lenses, the second lens group rests on the bottom surface of the inner extension and is placed in the second groove;
  • the first segment 3011 has a closed ring shape when viewed from above, and the first lens group and the second lens component are pre-positioned in step S300 and based on actual measurement in S400 Imaging results:
  • the first lens group 100 is clamped and moved with a jig, wherein the first segment 3011 and the first lens group A side of a lens group 100 has a gap for accommodating the jig.
  • the first segment 3011 has a notched ring shape when viewed from above, and in step S300, the first lens group and the second lens component are pre-positioned and based on S400.
  • the first lens group 100 is moved by a clamp, and the clamp extends into the The integrated lens barrel 300 sandwiches the first lens group 100.
  • the second segment 3012 when performing step S100, has multiple steps, and when the second lens group 200 is mounted on the integrated lens barrel 300, the at least A second lens is sequentially embedded in the multi-step to form the second lens group 200 and constitute the second lens component.
  • the first glue 400 when performing the step S500 of bonding the first lens group 100 and the first groove through the first glue 400, the first glue 400 is only arranged in Between the bottom surface of the first lens group 100 and the top surface of the inner extension 302. In another embodiment, in step S500, the first adhesive 400 is arranged between the bottom surface of the first lens group 100 and the top surface of the inner extension 302, and is also arranged on the first Between the side of the lens group 100 and the first segment 3011.
  • the assembly method further includes step S600.
  • a light shielding plate 500 is adhered to the top surface of the first lens group 100, and no glue material is filled between the light shielding plate 500 and the top surface of the cylindrical body 301.
  • the step of adhering the light shielding plate 500 (S600) may be performed after the step of bonding the first lens group 100 and the first groove through the first adhesive material 400 (S500) is completed ).
  • step S600 may be replaced with S600 '.
  • a light shielding plate 500 is adhered to the top surface of the cylindrical body 301, and no glue material is filled between the light shielding plate 500 and the top surface of the first lens group 100.
  • the step of adhering the light shielding plate 500 (S600) may be performed after the step of bonding the first lens group 100 and the first groove through the first adhesive material 400 (S500) is completed ').
  • step S500 may include sequentially performing cloth glue, exposure, and baking, and the adhesive shading plate 500 may be performed after exposure and before baking.
  • the cloth adhesive is to arrange the first adhesive material 400 on the top surface of the inner extension 302, and the exposure is to trigger the curing reaction of the first adhesive material 400 by ultraviolet rays (or light of other wavelengths), so that the first adhesive material 400 can be temporarily supported and
  • the relative positions of the first lens component and the second lens component are fixed (that is, the relative positions of the first lens group 100 and the integrated lens barrel 300).
  • Baking is to place the temporarily supported and fixed optical lens into an oven (or other equipment) for baking, so as to permanently cure the first adhesive 400, thereby improving the structural strength and reliability of the optical lens.
  • a camera module assembly method which includes assembling the optical lens using the optical lens assembly method of any of the foregoing embodiments, and then mounting the assembled optical lens on the photosensitive component To get the finished camera module.
  • lens barrel integrated lens barrel, first lens barrel, and second lens barrel all refer to lens barrels that are black objects, and these lens barrels all have a shading effect.
  • the integrated lens barrel 300 may be installed in an optical actuator (for example, a motor).
  • the integrated lens barrel 300 may be mounted on the inner side of the motor carrier to form an integral body with the motor.
  • the first lens group 100 serves as one component (can be regarded as the first lens component)
  • the second lens group 200, the integrated lens barrel 300 and the motor serve as another component (can be regarded as the second lens component)
  • Active calibration is performed between these two lens components.
  • FIG. 14A shows a relative position adjustment method in active calibration in an embodiment of the present application.
  • the first lens component 100 (which may also be the first lens 101) may move in the x, y, and z directions relative to the second lens component 200 (ie, the relative position in this embodiment Adjustment has three degrees of freedom).
  • the z direction is along the optical axis, and the x and y directions are perpendicular to the optical axis.
  • the x and y directions are in an adjustment plane P, and the translation in the adjustment plane P can be decomposed into two components in the x and y directions.
  • FIG. 14B shows the rotation adjustment in active calibration according to another embodiment of the present application.
  • the relative position adjustment in addition to the three degrees of freedom of FIG. 14A, the relative position adjustment also increases the rotation degree of freedom, that is, the adjustment in the r direction.
  • the adjustment in the r direction is rotation in the adjustment plane P, that is, rotation around an axis perpendicular to the adjustment plane P.
  • FIG. 14C shows a relative position adjustment manner in which adjustments in the v and w directions are added in active calibration according to yet another embodiment of the present application.
  • the v direction represents the rotation angle of the xoz plane
  • the w direction represents the rotation angle of the yoz plane
  • the rotation angles of the v direction and the w direction can be combined into a vector angle
  • the vector angle represents the total tilt state. That is to say, by adjusting the v direction and the w direction, the tilt attitude of the first lens component relative to the second lens component can be adjusted (that is, the optical axis of the first lens component relative to the optical axis of the second lens component Of the tilt).
  • the above six degrees of freedom adjustments of x, y, z, r, v, and w may all affect the imaging quality of the optical system (eg, affect the resolution).
  • the relative position adjustment method may be to adjust only any one of the above six degrees of freedom, or a combination of any two or more of them.
  • the adjustment of the relative positions of the first lens component and the second lens component includes translation on the adjustment plane, that is, movement in the x and y directions.
  • the adjustment of the relative positions of the first lens component 100 and the second lens component further includes: adjusting and determining the first lens component's The angle of the axis with respect to the axis of the second lens component, that is, the adjustment in the w and v directions.
  • an angle between the axis of the first lens component and the axis of the second lens component may be non-zero.
  • the adjustment of the relative positions of the first lens component and the second lens component further includes: moving the first lens component (ie, z) in a direction perpendicular to the adjustment plane Adjustment in the direction), according to the measured resolution of the optical system, to determine the relative position between the first lens component and the second lens component in the direction perpendicular to the adjustment plane.
  • the first lens component may not have a first lens barrel.
  • the first lens component may be composed of a single first lens. Before active calibration, first correspond to a predetermined position so that there is a gap between the bottom surface of the first lens and the top surface of the second lens component; Allow the glue to cure.
  • the first lens may be formed by a plurality of sub-lenses that are fitted or bonded to each other to form an integrated body.
  • the light shielding layer 101 may be formed on the side surface and top surface of the non-optical surface of the first lens that are not used for imaging.
  • the light-shielding layer 101 may be formed by screen-printing a light-shielding material on the side and top surfaces of the first lens.
  • this embodiment can reduce the size of the camera module head (object side) that originally invaded the mobile phone screen, thereby making the camera module installed on the mobile phone In the middle, it can be closer to the side wall (or other frame) of the mobile phone to achieve a higher screen ratio.
  • the top surface of the structural area 103 of the first lens group 100 is higher than the top surface of the integrated lens barrel 300.
  • the top surface refers to the end surface on the object side.
  • This design can make the top surface of the lens barrel lower than the top surface of the lens, so that when the camera module is installed in the mobile phone, the lens barrel as a structural component has a smaller protrusion, and the size of the invading screen is smaller, which is conducive to increasing the screen occupation ratio.
  • the lower top surface of the lens barrel helps to avoid the screen components, so that the screen extends to a position closer to the frame of the mobile phone, thereby increasing the screen ratio.
  • the second lens component in the active calibration step, can be fixed, the first lens component can be clamped by a clamp, and the first lens component can be moved by the six-axis motion mechanism connected to the clamp to achieve the first The relative movement between the lens component and the second lens component in the above six degrees of freedom.
  • the clamp can bear or partly bear on the side surface of the first lens component, so as to clamp the first lens component and perform position adjustment with multiple degrees of freedom.

Abstract

一体式镜筒（300），包括：筒形主体（301），其具有内侧面和中轴线；以及内延伸部（302），其自内侧面向中轴线延伸且内延伸部（302）的中部具有通光孔（302a），内延伸部（302）将内侧面分割为第一分段（3011）和第二分段（3012），内延伸部（302）的顶面与第一分段（3011）构成适于容纳第一镜片群（100）的第一凹槽（303），内延伸部（302）的底面与第二分段（3012）构成适于容纳第二镜片群（200）的第二凹槽（304）。还提供了相应的光学镜头（1000）、摄像模组，以及光学镜头（1000）和摄像模组的组装方法。可以减少基于主动校准工艺的光学镜头（1000）的变异源，从而提升成像品质和良率。

Description

一体式镜筒、光学镜头、摄像模组及组装方法
相关申请的交叉引用
本申请要求于2018年10月9日递交于中国国家知识产权局(CNIPA)的、申请号为201811171784.9、发明名称为“一体式镜筒、光学镜头、摄像模组及组装方法”的中国发明专利申请以及2018年10月9日递交于CNIPA的、申请号为201821631668.6、发明名称为“一体式镜筒、光学镜头及摄像模组”的中国实用新型专利申请的优先权和权益，上述申请通过引用整体并入本文。
技术领域
本申请涉及光学成像技术领域，具体地说，本申请涉及一体式镜筒、光学镜头、摄像模组及组装方法。
背景技术
随着手机、电脑等终端的发展，用户对于各项需求都有着不小的提升，尤其随着手机的发展，用户对于拍摄质量的追求，使得厂商发展出了个性化，定制化的摄像模组，例如大光圈，大广角，解决像差而出现的数量较多的镜片的镜头等。一方面，这使得光学设计越来越复杂；另一方面，复杂的光学系统比较敏感，这对制造的良率和产品质量造成了不小的挑战。因为大光圈、大广角的摄像模组的光学系统会比较敏感，其制造过程和验证过程的可靠性都会比常规的设计更加脆弱，因此现在需要一种结构更优的光学镜头。
另一方面，为了满足越来越广泛的市场需求，高像素、小尺寸、大光圈是现有摄像模组不可逆转的发展趋势。然而，要在同一摄像模塑满足高像素、小尺寸、大光圈三个方面的需求是有很大难度的。例如，手机的紧凑型发展和手机屏占比的增加，让手机内部能够用于前置摄像模组的空间越来越小，而市场对摄像模组的成像质量又提出了 越来越高的需求。
在紧凑型摄像模组(例如用于手机的摄像模组)领域，往往需要考虑到光学成像镜头的品质和模组封装过程中的制造误差。具体来说，在光学成像镜头的制造过程中，影响镜头解像力因素来自于各元件及其装配的误差、镜片间隔元件厚度的误差、各镜片的装配配合的误差以及镜片材料折射率的变化等。因为影响镜头解像力的因素非常多，存在于多个元件中，每个因素的控制都存在制造精度的极限，如果只是单纯提升各个元件的精度，提升能力有限，提升成本高昂，而且不能满足市场日益提高的成像品质需求。
本申请人提出了一种基于主动校准工艺调整和确定上、下子镜头的相对位置，然后将上、下子镜头按照所确定的相对位置粘结在一起，进而制造出完整的光学镜头或摄像模组的组装方法。这种解决方案能够提升大批量生产的光学镜头或摄像模组的过程能力指数(CPK)；能够使得对物料(例如用于组装光学镜头或摄像模组的子镜头或感光组件)的各个元件的精度及其装配精度的要求变宽松，进而降低光学成像镜头以及摄像模组的整体成本；能够在组装过程中对摄像模组的各种像差进行实时调整，降低不良率，降低生产成本，提升成像品质。
然而，对镜头的光学系统本身进行主动校准是一种新的生产工艺，实际量产需要考虑光学镜头和摄像模组的可靠性、抗摔性、耐候性以及制作成本等诸多因素，有时还需要面对各种不可测因素而导致的良率下降。申请人认为，改善基于主动校准工艺制造的光学镜头的结构可靠性，是提升此类光学镜头的成像品质和良率的一个思考重要方向。因此，迫切需要能够改善基于主动校准工艺制造的光学镜头的结构可靠性解决方案。
发明内容
本申请提供一种能够克服现有技术的至少一个缺陷的解决方案。
根据本申请的一个方面，提供了一体式镜筒，包括：筒形主体，其具有内侧面和中轴线；以及内延伸部，所述内延伸部自所述内侧面向所述中轴线延伸且所述内延伸部的中部具有通光孔，所述内延伸部 将所述内侧面分割为第一分段和第二分段，所述内延伸部的顶面与所述第一分段构成适于容纳第一镜片群的第一凹槽，所述内延伸部的底面与所述第二分段构成适于容纳第二镜片群的第二凹槽。
其中，所述第一分段在俯视视角下呈闭合的环形。
其中，所述第一分段具有凹段，所述凹段从所述筒形主体的内侧面向所述筒形主体的外侧面的方向凹进。
其中，所述第一分段在俯视视角下呈带缺口的环形。
其中，所述内延伸部的顶面适于布置胶材。
其中，所述第二分段具有多级台阶，所述多级台阶适于依次嵌入多个第二镜片以组立所述第二镜片群；所述内延伸部的底面适于承靠所述第二镜片群，所述内延伸部的顶面适于布置胶材以粘结所述第一镜片群。
根据本申请的另一方面，还提供了一种光学镜头，包括：一体式镜筒，所述一体式镜筒包括筒形主体，其具有内侧面和中轴线；以及内延伸部，所述内延伸部自所述内侧面向内延伸且所述内延伸部的中部具有通光孔，所述内延伸部将所述内侧面分割为第一分段和第二分段，其中所述内延伸部的顶面与所述第一分段构成第一凹槽，所述内延伸部的底面与所述第二分段构成第二凹槽；第一镜片群，其包括单个第一镜片或依靠镜片间的嵌合或粘合而组立在一起的多个第一镜片；第二镜片群，其包括至少一个第二镜片，所述第二镜片群承靠于所述内延伸部的底面并置于所述第二凹槽内，所述第一镜片群和所述第二镜片群共同构成可成像的光学系统；以及第一胶材，其位于所述第一镜片群和所述第一凹槽之间。
其中，固化后的所述第一胶材支撑和固定所述第一镜片群与所述一体式镜筒，使得所述第一镜片群和所述第二镜片群的相对位置保持在基于所述光学系统的成像结果进行主动校准所确定的相对位置。
其中，所述第一分段在俯视视角下呈闭合的环形。
其中，所述第一分段具有凹段，所述凹段从所述筒形主体的内侧面向所述筒形主体的外侧面的方向凹进。
其中，所述筒形主体的顶面粘结遮光板，所述遮光板形成光阑， 并且所述遮光板与所述第一镜片群之间不填充胶材。
其中，所述第一镜片群包括光学区和围绕所述光学区的结构区，所述结构区的顶面粘结遮光板，所述遮光板形成光阑，并且所述遮光板与所述筒形主体的顶面之间不填充胶材。
其中，所述第一分段在俯视视角下呈带缺口的环形。
其中，所述筒形主体的顶面粘结遮光板以形成光阑，所述遮光板具有与所述缺口适配的侧挡板，并且所述遮光板与所述第一镜片群之间不填充胶材。
其中，所述第一镜片群包括光学区和围绕所述光学区的结构区，所述结构区的顶面粘结遮光板以形成光阑，所述遮光板具有与所述缺口适配的侧挡板，并且所述遮光板与所述筒形主体的顶面之间不填充胶材。
其中，所述遮光板为金属材质或者适于作为外观面的材质。
其中，所述遮光板与所述一体式镜筒材质相同，粘合所述遮光板的胶材与所述第一胶材的材质相同。
其中，所述第一镜片群包括光学区和围绕所述光学区的结构区，所述结构区的外表面附着遮光层，所述结构区的顶面高于所述一体式镜筒的顶面。
其中，所述遮光层遮挡可见光，透射特定波段的非可见光，所述特定波段的非可见光是触发第一胶材固化反应的光。
其中，所述第二分段具有多级台阶，所述多级台阶适于依次嵌入多个第二镜片以组立成所述第二镜片群。
其中，所述筒形主体与所述内延伸部是一体成型的。
根据本申请的另一方面，还提供了一种摄像模组，其包括前述任一光学镜头。
根据本申请的另一方面，还提供了一种光学镜头组装方法，包括：将第二镜片群安装于所述一体式镜筒以构成第二镜头部件，其中，所述一体式镜筒包括筒形主体和内延伸部，所述筒形主体具有内侧面和中轴线，所述内延伸部自所述内侧面向内延伸且所述内延伸部的中部具有通光孔，所述内延伸部将所述内侧面分割为第一分段和第二分段， 其中所述内延伸部的顶面与所述第一分段构成第一凹槽，所述内延伸部的底面与所述第二分段构成第二凹槽，所述第二镜片群包括至少一个第二镜片，所述第二镜片群承靠于所述内延伸部的底面并置于所述第二凹槽内；将所述第一镜片群置于所述第一凹槽，其中所述第一镜片群包括单个第一镜片或依靠镜片自身的相互作用而组立在一起的多个第一镜片；对所述第一镜片群和所述第二镜头部件进行预定位，使所述第一镜片群和所述第二镜片群构成可成像的光学系统；基于实测成像结果对所述第一镜片群和所述第二镜片群的相对位置进行主动校准；以及将所述第一镜片群与所述第一凹槽通过第一胶材粘合，并使所述第一镜片群和所述第二镜片群保持在主动校准所确定的相对位置，进而获得所述光学镜头。
其中，所述第一分段在俯视视角下呈闭合的环形；所述预定位和所述主动校准中，用夹具夹持所述第一镜片群进行移动，其中所述第一分段与所述第一镜片群的侧面之间具有容纳所述夹具的间隙。
其中，所述第一分段在俯视视角下呈带缺口的环形；所述预定位和所述主动校准中，用夹具夹持所述第一镜片群进行移动，其中所述夹具通过所述缺口伸入所述一体式镜筒并夹持所述第一镜片群。
其中，所述第二分段具有多级台阶；将所述第二镜片群安装于所述一体式镜筒包括：将所述至少一个第二镜片依次嵌入所述多级台阶以组立成所述第二镜片群，并构成所述第二镜头部件。
其中，所述将第一镜片群与所述第一凹槽通过第一胶材粘合的步骤中，所述第一胶材仅布置于所述第一镜片群的底面和所述内延伸部的顶面之间；或者所述第一胶材既布置于所述第一镜片群的底面和所述内延伸部的顶面之间，也布置于所述第一镜片群的侧面和所述第一分段之间。
其中，所述第一镜片群包括光学区和围绕所述光学区的结构区；所述光学镜头组装方法还包括：在所述结构区的顶面粘附遮光板，并且所述遮光板与所述筒形主体的顶面之间不填充胶材。
其中，所述光学镜头组装方法还包括：在所述筒形主体的顶面粘附遮光板，并且所述遮光板与所述第一镜片群的顶面之间不填充胶材。
其中，在将所述第一镜片群与所述第一凹槽通过所述第一胶材粘合后，粘附所述遮光板。
其中，将所述第一镜片群与所述第一凹槽通过所述第一胶材粘合包括依次执行的布胶、曝光和烘烤的步骤；粘附所述遮光板的步骤在曝光之后、烘烤之前执行。
根据本申请的另一方面，还提供了一种摄像模组组装方法，其包括：利用前述任一光学镜头组装方法组装光学镜头；以及基于所述光学镜头组装摄像模组。
与现有技术相比，本申请具有下列至少一个技术效果：
1、本申请可以减少基于主动校准工艺的光学镜头的变异源，从而提升成像品质和良率。
2、本申请可以采用一体式镜筒代替分体式镜筒，提供高了基于主动校准的光学镜头的机械可靠性，并且可以抑制烘烤、高温高湿等条件下引发的光学性能变异。
3、本申请可以通过在第一镜片群附着不透射可见光可投射特定波段非可见光的遮光层，可以使得胶材固化时曝光可以从正上方透射，这种曝光方式与侧曝光相比更均匀，有助于提升光学镜头的成像品质。
4、本申请可以采用金属材质的遮光板，从而减小光学镜头或摄像模组的高度。
5、本申请可以将遮光板作为外观面，从而减小光学镜头或摄像模组的高度以及减少组装工序。
附图说明
在参考附图中示出示例性实施例。本文中公开的实施例和附图应被视作说明性的，而非限制性的。
图1示出了本申请一个实施例的光学镜头1000的剖面示意图；
图2示出了本申请另一个实施例中的光学镜头1000的剖面示意图；
图3示出了一个比较例中的采用分体式镜筒的基于主动校准的光 学镜头；
图4示出了本申请一个实施例的一体式镜筒300的俯视示意图；
图5示出了图4所示的一体式镜筒300的剖面示意图；
图6示出了本申请另一个实施例的一体式镜筒300的俯视示意图；
图7示出了图6所示的一体式镜筒300的剖面示意图；
图8示出了本申请一个实施例的采用图6所示的一体式镜筒300的光学镜头的示意图；
图9示出了本申请一个变型的实施例的光学镜头；
图10示出了本申请另一个变型的实施例的光学镜头；
图11示出了本申请一个变型的实施例的一体式镜筒300的俯视示意图；
图12示出了本申请另一个变型的实施例的光学镜头；
图13示出了本申请另一个变型的实施例的光学镜头；
图14A示出了本申请一个实施例中的主动校准中相对位置调节方式；
图14B示出了本申请另一个实施例的主动校准中的旋转调节；
图14C示出了本申请又一个实施例的主动校准中的增加了v、w方向调节的相对位置调节方式。
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，下文中讨论的第一主体也可被称作第二主体。
在附图中，为了便于说明，已稍微夸大了物体的厚度、尺寸和形状。 附图仅为示例而并非严格按比例绘制。
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、整体、步骤、操作、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、整体、步骤、操作、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“可以”表示“本申请的一个或多个实施方式”。并且，用语“示例性的”指代示例或举例说明。
如在本文中使用的，用语“基本上”、“大约”以及类似的用语用作表近似的用语，而不用作表程度的用语，并且说明将由本领域普通技术人员认识到的、测量值或计算值中的固有偏差。
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。
图1示出了本申请一个实施例的光学镜头1000的剖面示意图。如图1所示，本实施例的光学镜头1000包括一体式镜筒300、第一镜片群100、第二镜片群200和第一胶材400。其中，一体式镜筒300包括筒形主体301和自筒形主体301内侧面延伸而形成的内延伸部302。所述筒形主体301与所述内延伸部302是一体成型的。进一步地，参考图1，筒形主体301具有内侧面和中轴线。内延伸部302自所述内侧面向所述中轴线延伸且中部具有通光孔302a，所述内延伸部302将所述内侧面分割为第一分段3011和第二分段3012，其中所述内延伸部302的顶面与所述第一分段3011构成第一凹槽，所述内延伸部302 的底面与所述第二分段3012构成第二凹槽。本实施例中，第一镜片群100由单个第一镜片构成。需注意，本申请并不限于此，例如图2示出了本申请另一个实施例中的光学镜头1000的剖面示意图。该实施例中，第一镜片群100可以由依靠镜片自身的相互作用而组立在一起的多个第一镜片构成(例如由多个互相嵌合或粘合的第一镜片构成)。第二镜片群200包括至少一个第二镜片，所述第二镜片群200承靠于所述内延伸部302的底面并置于所述第二凹槽内，所述第一镜片群100和所述第二镜片群200共同构成可成像的光学系统。第一胶材400位于所述第一镜片群100和所述第一凹槽之间。该第一胶材400适于在固化后支撑和固定所述第一镜片群100与所述一体式镜筒300，使得所述第一镜片群100和所述第二镜片群200的相对位置保持在基于所述光学系统的成像结果进行主动校准所确定的相对位置。
上述实施例中，采用一体式镜筒300代替分体式镜筒，提供高了基于主动校准的光学镜头的机械可靠性，并且可以抑制烘烤、高温高湿等条件下引发的光学性能变异(由于减少了烘烤等条件下的变异源)。进一步地，图3示出了一个比较例中的采用分体式镜筒的基于主动校准的光学镜头。参考图3，该光学镜头包括第一镜头部件和第二镜头部件，其中第一镜头部件包括第一镜筒800和安装于第一镜筒800内的第一镜片，第二镜头部件包括第二镜筒900和安装于第二镜筒900内的多个第二镜片。第一镜头部件和第二镜头部件各自作为一个整体进行主动校准并确定二者之间的相对位置，然后用第一胶材400粘合第一镜头部件和第二镜头部件，以支撑和固定第一镜头部件与第二镜头部件。这种方案下，镜筒(尤其是第一镜筒800)的结构强度相对不足，导致其机械可靠性较低。在烘烤、高温高湿等条件下，第一胶材400和镜筒(尤其是第一镜筒800)均可能发生变异，导致第一镜片与第二镜片的相对位置发生改变，从而丧失(或降低)主动校准所获得的光学性能(即光学性能变异)。而本申请采用的一体式镜筒300可以克服上述问题。
进一步地，图4示出了本申请一个实施例的一体式镜筒300的俯视示意图。参考图4，在本申请的一个实施例中，所述第一分段3011 在俯视视角下呈闭合的环形。所述第一分段3011具有凹段3011a，所述凹段3011a从所述筒形主体301的内侧面向所述筒形主体301的外侧面的方向凹进。图5示出了图4所示的一体式镜筒300的剖面示意图。参考图1、图4和图5，可以看出所述一体式镜筒300的内侧面的第一分段3011具有凹段3011a，该凹段3011a与第一镜片群100的外侧面之间具有间隙，该间隙可容纳夹爪，以便夹爪夹持第一镜片群100在第一凹槽303内进行主动校准。需注意图5中，第二镜片群200已嵌入所述一体式镜筒300的第二凹槽304。
进一步地，图6示出了本申请另一个实施例的一体式镜筒300的俯视示意图。参考图6，在本申请的另一个实施例中，所述第一分段3011在俯视视角下呈带缺口的环形。由于第一分段3011具有缺口3011b，该一体式镜筒300可以避让夹爪，以便夹爪夹持第一镜片群100在第一凹槽内进行主动校准。进一步地，图7示出了图6所示的一体式镜筒300的剖面示意图。图8示出了本申请一个实施例的采用图6所示的一体式镜筒300的光学镜头的示意图。
进一步地，仍然参考图1，在本申请的一个实施例中，所述第二分段3012具有多级台阶，所述多级台阶适于依次嵌入多个第二镜片以组立成所述第二镜片群200。换句话说，组立完成后，一体式镜头和多个第二镜片形成一个整体的第二镜头部件，第一镜片群100则单独构成第一镜头部件，前文所述的主动校准就是对第一镜头部件和第二镜头部件的相对位置进行校准。
进一步地，仍然参考图1，在本申请的一个实施例中，所述第一镜片群100的结构区103表面(包括结构区103的顶面和侧面，有时还可以进一步包括结构区103的底面)附着遮光层101。其中结构区103是围绕在光学区102外的区域。光学区102则是镜片群的用于进行光学成像的区域。所述遮光层101可以是不透射可见光而仅透射紫外光的涂层。这样，第一胶材400可以选用由紫外光触发固化的胶材。涂层(即遮光层101)不透射可见光可实现遮挡杂光或充当光阑，其结构紧凑，并且胶材固化时曝光可以从正上方透射(即从所述遮光层101透射紫外光)，与侧曝光相比更均匀。作为对比，在前述比较例的 分体式镜筒方案中，由于上方的第一镜筒800的阻挡，需要从侧边曝光来对第一胶材400进行固化。需注意，第一胶材400也可以是由其它波段来触发固化的胶材，此时，遮光层101不透射可见光仅透射触发第一胶材400固化的波段的光。
进一步地，图9示出了本申请一个变型的实施例的光学镜头。本实施例是在图1的实施例的基础上，增加了遮光板500。相应地，本实施例中，第一镜片(或第一镜片群100)可以不附着遮光层。具体来说，本实施例中，遮光板500可以粘合于一体式镜筒300的顶面(指筒形主体301顶面)。遮光板500不与第一镜片接触(二者间保留间隙，不使用胶材粘合)。本实施例中，遮光机构(即遮光板500)不参与涉及主动校准的组装过程，因此不需要测高，表面粗糙度不用做得很小以保证测高精度，划伤不良减少(越光滑越易划伤)。另一方面，由于遮光机构可以与镜片独立出来(作为对比，前述比较例中由第一镜筒800实现遮光功能)，由于其不再与镜片粘接，其材质的选取不再受下群镜筒(即第二镜筒)的限制(作为对比，前述比较例中，出于胶材粘接两侧的材质线膨系数接近可以减小光学系统在烘烤等条件下性能变异的考虑)。因此，遮光板500的材质可以采用金属，这样遮光板500可以做得更薄。遮光板500的材质还可以采用PET聚酯，其机械化学性质稳定，可以直接作为外观面。作为对比，前述比较例中，最终的光学镜头成品需要在镜头最外加一PET聚酯材质的薄片以作为外观面。
进一步地，图10示出了本申请另一个变型的实施例的光学镜头。本实施例同样是在图1的实施例的基础上，增加了遮光板500。并且，本实施例中第一镜片(或第一镜片群100)可以不附着遮光层。与图9所示实施例的区别在于，本实施例中，遮光板500粘合于第一镜片(或第一镜片群100)的结构区103的顶面。而遮光板500与筒形主体301的顶面间保留气隙，即二者间不布置胶材。本实施例中，遮光机构(即遮光板500)不参与涉及主动校准的组装过程，因此不需要测高，表面粗糙度不用做得很小以保证测高精度，划伤不良减少(越光滑越易划伤)。本实施例遮光机构优选与一体式镜筒300相同的材料，胶材也 选取与一体式镜筒和上群镜片间相同的材料，即粘合遮光机构的胶材501与第一胶材400材质相同。其目的在于使得第一镜片群100在烘烤等条件下，两侧胶材变异一致，尽可能减小光学系统性能劣化。
进一步地，图11示出了本申请一个变型的实施例的一体式镜筒300的俯视示意图。本实施例中，一体式镜筒300的第一分段3011呈环形且不设置凹段。本实施例中，第一分段3011的直径可以大于第一镜片(或第一镜片群100)外侧面的直径，以便在第一分段3011与第一镜片(或第一镜片群100)外侧面之间形成容纳夹爪的空间，从而避让夹爪夹持位。在不需要避让夹爪的位置，第一镜片(或第一镜片群100)的外侧面可选地施加胶材与一体式镜筒300粘接。
进一步地，图12示出了本申请另一个变型的实施例的光学镜头。本实施例与图6～8所示的实施例相比，区别在于增加了遮光板500，且该遮光板500具有适配第一分段3011的缺口的侧挡板502。本实施例中，第一镜片(或第一镜片群100)可以不附着遮光层。具体来说，本实施例中，遮光板500可以粘合于筒形主体301的顶面。遮光板500不与第一镜片接触(二者间保留间隙，不使用胶材粘合)。本实施例中，遮光机构(即遮光板500)不参与涉及主动校准的组装过程，因此不需要测高，表面粗糙度不用做得很小以保证测高精度，划伤不良减少。另一方面，由于遮光机构可以与镜片独立出来，由于其不再与镜片粘接，其材质的选取不再受下群镜筒(即第二镜筒)的限制。因此，遮光板500的材质可以采用金属，这样遮光板500可以做得更薄。遮光板500的材质还可以采用PET聚酯，其机械化学性质稳定，可以直接作为外观面。作为对比，前述比较例中，最终的光学镜头成品需要在镜头最外加一PET聚酯材质的薄片以作为外观面。
进一步地，图13示出了本申请另一个变型的实施例的光学镜头。本实施例与图6～8所示的实施例相比，区别在于增加了遮光板500，且该遮光板500具有适配第一分段3011的缺口的侧挡板502。本实施例中，第一镜片(或第一镜片群100)可以不附着遮光层。与图12所示实施例的区域在于，本实施例中，遮光板500粘合于第一镜片(或第一镜片群100)的结构区103的顶面。而遮光板500与筒形主体301 的顶面间保留气隙，即二者间不布置胶材。本实施例中，遮光机构(即遮光板500)不参与涉及主动校准的组装过程，因此不需要测高，表面粗糙度不用做得很小以保证测高精度，划伤不良减少(越光滑越易划伤)。本实施例粘合遮光机构优选与一体式镜筒300相同的材料，胶材也选取与一体式镜筒和上群镜片间相同的材料，即粘合遮光机构的胶材501与第一胶材400材质相同。其目的在于使得第一镜片群100在烘烤等条件下，两侧胶材变异一致，尽可能减小光学系统性能劣化。
进一步地，在一个实施例中，所述内延伸部302的顶面适于布置胶材，例如内延伸部302在垂直于所述中轴线的方向上具有一定尺寸，以便布置胶材。
根据本申请的另一实施例，还提供了一种摄像模组，该摄像模组可以包括前文任意一个实施例的光学镜头。
根据本申请的另一实施例，还提供了一种光学镜头组装方法，包括下列步骤。
S100，将第二镜片群安装于所述一体式镜筒以构成第二镜头部件，其中，所述一体式镜筒包括筒形主体和内延伸部，所述筒形主体具有内侧面和中轴线，所述内延伸部自所述内侧面向内延伸且所述内延伸部的中部具有通光孔，所述内延伸部将所述内侧面分割为第一分段和第二分段，其中所述内延伸部的顶面与所述第一分段构成第一凹槽，所述内延伸部的底面与所述第二分段构成第二凹槽，所述第二镜片群包括至少一个第二镜片，所述第二镜片群承靠于所述内延伸部的底面并置于所述第二凹槽内；
S200，将所述第一镜片群置于所述第一凹槽，其中所述第一镜片群包括单个第一镜片或依靠镜片自身的相互作用而组立在一起的多个第一镜片；
S300，对所述第一镜片群和所述第二镜头部件进行预定位，使所述第一镜片群和所述第二镜片群构成可成像的光学系统；
S400，基于实测成像结果对所述第一镜片群和所述第二镜片群的相对位置进行主动校准；以及
S500，将所述第一镜片群与所述第一凹槽通过第一胶材粘合，并 使所述第一镜片群和所述第二镜片群保持在主动校准所确定的相对位置，进而获得所述光学镜头。
进一步地，在一个实施例中，所述第一分段3011在俯视视角下呈闭合的环形，在步骤S300中对第一镜片群和所述第二镜头部件进行预定位和在S400中基于实测成像结果对所述第一镜片群和所述第二镜片群的相对位置进行主动校准时，用夹具夹持所述第一镜片群100进行移动，其中所述第一分段3011与所述第一镜片群100的侧面之间具有容纳所述夹具的间隙。
进一步地，在一个实施例中，所述第一分段3011在俯视视角下呈带缺口的环形，在步骤S300中对第一镜片群和所述第二镜头部件进行预定位和在S400中基于实测成像结果对所述第一镜片群和所述第二镜片群的相对位置进行主动校准时，用夹具夹持所述第一镜片群100进行移动，其中所述夹具通过所述缺口伸入所述一体式镜筒300并夹持所述第一镜片群100。
进一步地，在一个实施例中，在进行步骤S100中的所述第二分段3012具有多级台阶，所述将第二镜片群200安装于所述一体式镜筒300时，将所述至少一个第二镜片依次嵌入所述多级台阶以组立成所述第二镜片群200，并构成所述第二镜头部件。
进一步地，在一个实施例中，在进行步骤S500中的所述将第一镜片群100与所述第一凹槽通过第一胶材400粘合时，所述第一胶材400仅布置于所述第一镜片群100的底面和所述内延伸部302的顶面之间。在另一个实施例中，步骤S500中，所述第一胶材400既布置于所述第一镜片群100的底面和所述内延伸部302的顶面之间，也布置于所述第一镜片群100的侧面和所述第一分段3011之间。
进一步地，在一个实施例中，所述组装方法还包括步骤S600。
S600，在第一镜片群100的顶面粘附遮光板500，并且所述遮光板500与所述筒形主体301的顶面之间不填充胶材。本实施例中，可以在所述将第一镜片群100与所述第一凹槽通过第一胶材400粘合的步骤(S500)完成后，执行所述粘附遮光板500的步骤(S600)。
在另一实施例中，所述步骤S600可以用S600’替换。
S600’，在筒形主体301的顶面粘附遮光板500，并且所述遮光板500与所述第一镜片群100的顶面之间不填充胶材。本实施例中，可以在所述将第一镜片群100与所述第一凹槽通过第一胶材400粘合的步骤(S500)完成后，执行所述粘附遮光板500的步骤(S600’)。
进一步地，在一个实施例中，步骤S500可以包括依次执行的布胶、曝光和烘烤，所述粘附遮光板500可以在曝光之后、烘烤之前执行。其中布胶是在内延伸部302的顶面布置第一胶材400，曝光是通过紫外线(或其它波段的光)触发第一胶材400发生固化反应，使第一胶材400可以临时支撑和固定第一镜头部件和第二镜头部件的相对位置(即第一镜片群100和一体式镜筒300的相对位置)。烘烤是将获得临时支撑和固定的光学镜头放入烘箱(或其它设备)中进行烘烤，以使第一胶材400永久固化，从而提高光学镜头的结构强度和可靠性。
进一步地，根据本申请的另一实施例，还提供了一种摄像模组组装方法，其包括利用前述任意实施例的光学镜头组装方法组装光学镜头，然后将所组装的光学镜头安装于感光组件，得到摄像模组成品。
本文中，镜筒、一体式镜筒、第一镜筒、第二镜筒等概念均指作为黑物的镜筒，这些镜筒均具有遮光作用。
本申请中，一体式镜筒300可以安装于光学致动器(例如马达)内。例如，一体式镜筒300可以安装于马达载体的内侧面，从而与马达构成一个整体。在主动校准时，第一镜片群100作为一个部件(可视为第一镜头部件)，第二镜片群200、一体式镜筒300以及马达作为另一个部件(可视为第二镜头部件)，主动校准在这两个镜头部件之间进行。
以下将进一步地介绍光学镜头或摄像模组组装方法中所使用的主动校准工艺。
本申请中所述的主动校准可以在多个自由度上对第一镜头部件100和第二镜头部件200的相对位置进行调整。图14A示出了本申请一个实施例中的主动校准中相对位置调节方式。在该调节方式中，所述第一镜头部件100(也可以是第一镜片101)可以相对于所述第二镜 头部件200沿着x、y、z方向移动(即该实施例中的相对位置调整具有三个自由度)。其中z方向为沿着光轴的方向，x，y方向为垂直于光轴的方向。x、y方向均处于一个调整平面P内，在该调整平面P内平移均可分解为x、y方向的两个分量。
图14B示出了本申请另一个实施例的主动校准中的旋转调节。在该实施例中，相对位置调整除了具有图14A的三个自由度外，还增加了旋转自由度，即r方向的调节。本实施例中，r方向的调节是在所述调整平面P内的旋转，即围绕垂直于所述调整平面P的轴线的旋转。
进一步地，图14C示出了本申请又一个实施例的主动校准中的增加了v、w方向调节的相对位置调节方式。其中，v方向代表xoz平面的旋转角，w方向代表yoz平面的旋转角，v方向和w方向的旋转角可合成一个矢量角，这个矢量角代表总的倾斜状态。也就是说，通过v方向和w方向调节，可以调节第一镜头部件相对于第二镜头部件的倾斜姿态(也就是所述第一镜头部件的光轴相对于所述第二镜头部件的光轴的倾斜)。
上述x、y、z、r、v、w六个自由度的调节均可能影响到所述光学系的成像品质(例如影响到解像力的大小)。在本申请的其它实施例中，相对位置调节方式可以是仅调节上述六个自由度中的任一项，也可以其中任两项或者更多项的组合。
进一步地，在一个实施例中，主动校准步骤中，第一镜头部件和第二镜头部件相对位置的调整包括在所述调整平面上的平移，即x、y方向上的运动。
进一步地，在一个实施例中，主动校准步骤中，第一镜头部件100和第二镜头部件相对位置的调整还包括：根据所述光学系统的实测解像力，调节并确定所述第一镜头部件的轴线相对于所述第二镜头部件的轴线的夹角，即w、v方向上的调节。所组装的光学镜头或摄像模组中，所述第一镜头部件的轴线与所述第二镜头部件的轴线之间可以具有不为零的夹角。
进一步地，在一个实施例中，主动校准步骤中，第一镜头部件和第二镜头部件相对位置的调整还包括：沿着垂直于所述调整平面的方 向移动所述第一镜头部件(即z方向上的调节)，根据所述光学系统的实测解像力，确定所述第一镜头部件与所述第二镜头部件之间的在垂直于所述调整平面的方向上的相对位置。
进一步地，在一个实施例中，所述第一镜头部件可以不具有第一镜筒。例如第一镜头部件可以由单个第一镜片构成。在主动校准前，先对应预定位，使所述第一镜片的底面和所述第二镜头部件的顶面之间具有间隙；然后进行主动校准，再将所述胶材布置于所述间隙并使胶材固化。本实施例中，第一镜片可以由互相嵌合或粘合而形成一体的多个子镜片形成。本实施例中，第一镜片的不用于成像的非光学面的侧面和顶面可以形成遮光层101。该遮光层101可以通过在第一镜片的侧面和顶面丝网印刷遮光材料而形成。相比有上盖的实施例及分体式镜筒(黑物)的方案，本实施例可以削减摄像模组头部(物方的)原本侵占手机屏幕的尺寸，从而使得摄像模组安装在手机中时可以更靠近手机的侧壁(或其它边框)，达到更高的屏占比。
进一步地，仍然参考图1，在一个实施例中，第一镜片群100的结构区103的顶面高于一体式镜筒300的顶面。其中顶面是指物方一侧的端面。这种设计可以使镜筒的顶面低于镜片的顶面，这样，摄像模组安装在手机中时，作为结构件的镜筒凸出较小，侵占屏幕的尺寸较小，利于提高屏占比。例如当摄像模组作为前置摄像头时，较低的镜筒顶面有助于避让屏幕组件，从而使屏幕延伸至更靠近手机边框的位置，进而提高屏占比。
在一个实施例中，主动校准步骤中，可以固定第二镜头部件，通过夹具夹持第一镜头部件，在与夹具连接的六轴运动机构的带动下，移动第一镜头部件，从而实现第一镜头部件和第二镜头部件之间的上述六个自由度下的相对移动。其中，夹具可以承靠于或部分承靠于第一镜头部件的侧面，从而将第一镜头部件夹起并进行多自由度的位置调整。
以上描述仅为本申请的较佳实施方式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 (32)

  1. 一体式镜筒，其特征在于，包括：
    筒形主体，其具有内侧面和中轴线；以及
    内延伸部，所述内延伸部自所述内侧面向所述中轴线延伸且所述内延伸部的中部具有通光孔，所述内延伸部将所述内侧面分割为第一分段和第二分段，所述内延伸部的顶面与所述第一分段构成适于容纳第一镜片群的第一凹槽，所述内延伸部的底面与所述第二分段构成适于容纳第二镜片群的第二凹槽。
  2. 根据权利要求1所述的一体式镜筒，其特征在于，所述第一分段在俯视视角下呈闭合的环形。
  3. 根据权利要求1所述的一体式镜筒，其特征在于，所述第一分段具有凹段，所述凹段从所述筒形主体的内侧面向所述筒形主体的外侧面的方向凹进。
  4. 根据权利要求3所述的一体式镜筒，其特征在于，所述第一分段在俯视视角下呈带缺口的环形。
  5. 根据权利要求1所述的一体式镜筒，其特征在于，所述内延伸部的顶面适于布置胶材。
  6. 根据权利要求1所述的一体式镜筒，其特征在于，所述第二分段具有多级台阶，所述多级台阶适于依次嵌入多个第二镜片以组立所述第二镜片群；所述内延伸部的底面适于承靠所述第二镜片群，所述内延伸部的顶面适于布置胶材以粘结所述第一镜片群。
  7. 光学镜头，其特征在于，包括：
    一体式镜筒，其包括：
    筒形主体，其具有内侧面和中轴线；以及
    内延伸部，所述内延伸部自所述内侧面向内延伸且所述内延伸部的中部具有通光孔，所述内延伸部将所述内侧面分割为第一分段和第二分段，其中所述内延伸部的顶面与所述第一分段构成第一凹槽，所述内延伸部的底面与所述第二分段构成第二凹槽；
    第一镜片群，其包括单个第一镜片或依靠镜片间的嵌合或粘合而组立在一起的多个第一镜片；
    第二镜片群，其包括至少一个第二镜片，所述第二镜片群承靠于所述内延伸部的底面并置于所述第二凹槽内，所述第一镜片群和所述第二镜片群共同构成可成像的光学系统；以及
    第一胶材，其位于所述第一镜片群和所述第一凹槽之间。
  8. 根据权利要求7所述的光学镜头，其特征在于，固化后的所述第一胶材支撑和固定所述第一镜片群与所述一体式镜筒，使得所述第一镜片群和所述第二镜片群的相对位置保持在基于所述光学系统的成像结果进行主动校准所确定的相对位置。
  9. 根据权利要求7所述的光学镜头，其特征在于，所述第一分段在俯视视角下呈闭合的环形。
  10. 根据权利要求9所述的光学镜头，其特征在于，所述第一分段具有凹段，所述凹段从所述筒形主体的内侧面向所述筒形主体的外侧面的方向凹进。
  11. 根据权利要求9所述的光学镜头，其特征在于，所述筒形主体的顶面粘结遮光板，所述遮光板形成光阑，并且所述遮光板与所述第一镜片群之间不填充胶材。
  12. 根据权利要求9所述的光学镜头，其特征在于，所述第一镜 片群包括光学区和围绕所述光学区的结构区，所述结构区的顶面粘结遮光板，所述遮光板形成光阑，并且所述遮光板与所述筒形主体的顶面之间不填充胶材。
  13. 根据权利要求7所述的光学镜头，其特征在于，所述第一分段在俯视视角下呈带缺口的环形。
  14. 根据权利要求13所述的光学镜头，其特征在于，所述筒形主体的顶面粘结遮光板以形成光阑，所述遮光板具有与所述缺口适配的侧挡板，并且所述遮光板与所述第一镜片群之间不填充胶材。
  15. 根据权利要求13所述的光学镜头，其特征在于，所述第一镜片群包括光学区和围绕所述光学区的结构区，所述结构区的顶面粘结遮光板以形成光阑，所述遮光板具有与所述缺口适配的侧挡板，并且所述遮光板与所述筒形主体的顶面之间不填充胶材。
  16. 根据权利要求11或14所述的光学镜头，其特征在于，所述遮光板为金属材质或者适于作为外观面的材质。
  17. 根据权利要求12或15所述的光学镜头，其特征在于，所述遮光板与所述一体式镜筒材质相同，粘合所述遮光板的胶材与所述第一胶材的材质相同。
  18. 根据权利要求7所述的光学镜头，其特征在于，所述第一镜片群包括光学区和围绕所述光学区的结构区，所述结构区的外表面附着遮光层，所述结构区的顶面高于所述一体式镜筒的顶面。
  19. 根据权利要求18所述的光学镜头，其特征在于，所述遮光层遮挡可见光，透射特定波段的非可见光，所述特定波段的非可见光是触发第一胶材固化反应的光。
  20. 根据权利要求7所述的光学镜头，其特征在于，所述第二分段具有多级台阶，所述多级台阶适于依次嵌入多个第二镜片以组立成所述第二镜片群。
  21. 根据权利要求7所述的光学镜头，其特征在于，所述筒形主体与所述内延伸部是一体成型的。
  22. 一种摄像模组，其特征在于，包括权利要求7-21中任意一项所述的光学镜头。
  23. 一种光学镜头组装方法，其特征在于，包括：
    将第二镜片群安装于所述一体式镜筒以构成第二镜头部件，其中，所述一体式镜筒包括筒形主体和内延伸部，所述筒形主体具有内侧面和中轴线，所述内延伸部自所述内侧面向内延伸且所述内延伸部的中部具有通光孔，所述内延伸部将所述内侧面分割为第一分段和第二分段，其中所述内延伸部的顶面与所述第一分段构成第一凹槽，所述内延伸部的底面与所述第二分段构成第二凹槽，所述第二镜片群包括至少一个第二镜片，所述第二镜片群承靠于所述内延伸部的底面并置于所述第二凹槽内；
    将所述第一镜片群置于所述第一凹槽，其中所述第一镜片群包括单个第一镜片或依靠镜片自身的相互作用而组立在一起的多个第一镜片；
    对所述第一镜片群和所述第二镜头部件进行预定位，使所述第一镜片群和所述第二镜片群构成可成像的光学系统；
    基于实测成像结果对所述第一镜片群和所述第二镜片群的相对位置进行主动校准；以及
    将所述第一镜片群与所述第一凹槽通过第一胶材粘合，并使所述第一镜片群和所述第二镜片群保持在主动校准所确定的相对位置，进而获得所述光学镜头。
  24. 根据权利要求23所述的光学镜头组装方法，其特征在于，所述第一分段在俯视视角下呈闭合的环形；
    所述预定位和所述主动校准中，用夹具夹持所述第一镜片群进行移动，其中所述第一分段与所述第一镜片群的侧面之间具有容纳所述夹具的间隙。
  25. 根据权利要求23所述的光学镜头组装方法，其特征在于，所述第一分段在俯视视角下呈带缺口的环形；
    所述预定位和所述主动校准中，用夹具夹持所述第一镜片群进行移动，其中所述夹具通过所述缺口伸入所述一体式镜筒并夹持所述第一镜片群。
  26. 根据权利要求23所述的光学镜头组装方法，其特征在于，所述第二分段具有多级台阶；
    将所述第二镜片群安装于所述一体式镜筒包括：将所述至少一个第二镜片依次嵌入所述多级台阶以组立成所述第二镜片群，并构成所述第二镜头部件。
  27. 根据权利要求23所述的光学镜头组装方法，其特征在于，所述第一胶材仅布置于所述第一镜片群的底面和所述内延伸部的顶面之间；或者所述第一胶材既布置于所述第一镜片群的底面和所述内延伸部的顶面之间，也布置于所述第一镜片群的侧面和所述第一分段之间。
  28. 根据权利要求23所述的光学镜头组装方法，其特征在于，所述第一镜片群包括光学区和围绕所述光学区的结构区；
    所述光学镜头组装方法还包括：
    在所述结构区的顶面粘附遮光板，并且所述遮光板与所述筒形主体的顶面之间不填充胶材。
  29. 根据权利要求23所述的光学镜头组装方法，其特征在于，所述光学镜头组装方法还包括：
    在所述筒形主体的顶面粘附遮光板，并且所述遮光板与所述第一镜片群的顶面之间不填充胶材。
  30. 根据权利要求28或29所述的光学镜头组装方法，其特征在于，在将所述第一镜片群与所述第一凹槽通过所述第一胶材粘合后，粘附所述遮光板。
  31. 根据权利要求28或29所述的光学镜头组装方法，其特征在于，将所述第一镜片群与所述第一凹槽通过所述第一胶材粘合包括依次执行的布胶、曝光和烘烤的步骤；
    粘附所述遮光板的步骤在曝光的步骤之后、烘烤的步骤之前执行。
  32. 一种摄像模组组装方法，其特征在于，包括：利用权利要求23-30中任意一项所述的光学镜头组装方法组装光学镜头；以及
    基于所述光学镜头组装摄像模组。
PCT/CN2019/101274 2018-10-09 2019-08-19 一体式镜筒、光学镜头、摄像模组及组装方法 WO2020073735A1 (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113126229A (zh) * 2021-04-30 2021-07-16 维沃移动通信有限公司 镜头模组及电子设备
CN113126229B (zh) * 2021-04-30 2024-05-03 维沃移动通信有限公司 镜头模组及电子设备

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210270326U (zh) * 2019-08-15 2020-04-07 瑞声通讯科技(常州)有限公司 镜头模组
TWI804351B (zh) * 2022-06-17 2023-06-01 新鉅科技股份有限公司 光學透鏡

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201083870Y (zh) * 2007-08-21 2008-07-09 三星高新电机（天津）有限公司 镜筒一体化手机摄像头
JP2013205808A (ja) * 2012-03-29 2013-10-07 Hitachi Maxell Ltd レンズユニット、カメラモジュール
CN104363814A (zh) * 2012-05-28 2015-02-18 富士胶片株式会社 电子内窥镜装置及拍摄模块以及拍摄透镜模制方法
CN207249220U (zh) * 2017-03-24 2018-04-17 宁波舜宇光电信息有限公司 分体式镜头和摄像模组以及电子设备
CN207340018U (zh) * 2016-11-28 2018-05-08 宁波舜宇光电信息有限公司 摄像模组
CN207408652U (zh) * 2017-11-01 2018-05-25 信丰世嘉科技有限公司 一种立体显微镜的镜头模组

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6165212A (ja) * 1984-09-07 1986-04-03 Fuji Xerox Co Ltd 複写機の結像レンズ
TWI395987B (zh) * 2007-05-25 2013-05-11 Hon Hai Prec Ind Co Ltd 鏡頭模組
CN102023361A (zh) * 2009-09-10 2011-04-20 鸿富锦精密工业（深圳）有限公司 定焦镜头模组
KR20140076761A (ko) * 2012-12-13 2014-06-23 삼성전기주식회사 렌즈 모듈
CN205594216U (zh) * 2016-03-03 2016-09-21 宁波舜宇光电信息有限公司 摄像模组及其镜头
KR102211711B1 (ko) * 2017-02-23 2021-02-03 코어포토닉스 리미티드 폴디드 카메라 렌즈 설계
JP2018146878A (ja) * 2017-03-08 2018-09-20 カンタツ株式会社 レンズ素子および撮像レンズユニット
KR102433410B1 (ko) * 2017-03-24 2022-08-17 닝보 써니 오포테크 코., 엘티디. 분리식 카메라렌즈와 촬영모듈 및 전자설비
CN206906673U (zh) * 2017-06-30 2018-01-19 中山市众盈光学有限公司 一种塑胶镜筒
CN207051569U (zh) * 2017-08-30 2018-02-27 宁波恒烨泰科光电技术有限公司 扫描摄像镜头
CN207502788U (zh) * 2017-09-22 2018-06-15 浙江舜宇光学有限公司 镜筒及镜头
TWI647480B (zh) * 2018-01-30 2019-01-11 大立光電股份有限公司 具有雙色模造光學元件的成像鏡頭與電子裝置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201083870Y (zh) * 2007-08-21 2008-07-09 三星高新电机（天津）有限公司 镜筒一体化手机摄像头
JP2013205808A (ja) * 2012-03-29 2013-10-07 Hitachi Maxell Ltd レンズユニット、カメラモジュール
CN104363814A (zh) * 2012-05-28 2015-02-18 富士胶片株式会社 电子内窥镜装置及拍摄模块以及拍摄透镜模制方法
CN207340018U (zh) * 2016-11-28 2018-05-08 宁波舜宇光电信息有限公司 摄像模组
CN207249220U (zh) * 2017-03-24 2018-04-17 宁波舜宇光电信息有限公司 分体式镜头和摄像模组以及电子设备
CN207408652U (zh) * 2017-11-01 2018-05-25 信丰世嘉科技有限公司 一种立体显微镜的镜头模组

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3848740A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113126229A (zh) * 2021-04-30 2021-07-16 维沃移动通信有限公司 镜头模组及电子设备
CN113126229B (zh) * 2021-04-30 2024-05-03 维沃移动通信有限公司 镜头模组及电子设备

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