WO2020258324A1 - 光学镜头 - Google Patents

光学镜头 Download PDF

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Publication number
WO2020258324A1
WO2020258324A1 PCT/CN2019/093905 CN2019093905W WO2020258324A1 WO 2020258324 A1 WO2020258324 A1 WO 2020258324A1 CN 2019093905 W CN2019093905 W CN 2019093905W WO 2020258324 A1 WO2020258324 A1 WO 2020258324A1
Authority
WO
WIPO (PCT)
Prior art keywords
lens
image side
optical
object side
horizontal plane
Prior art date
Application number
PCT/CN2019/093905
Other languages
English (en)
French (fr)
Inventor
马杰
Original Assignee
瑞声光学解决方案私人有限公司
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
Application filed by 瑞声光学解决方案私人有限公司 filed Critical 瑞声光学解决方案私人有限公司
Priority to PCT/CN2019/093905 priority Critical patent/WO2020258324A1/zh
Priority to CN201921032850.4U priority patent/CN210090807U/zh
Priority to US16/914,374 priority patent/US20200409111A1/en
Priority to JP2020111020A priority patent/JP6909905B2/ja
Publication of WO2020258324A1 publication Critical patent/WO2020258324A1/zh

Links

Classifications

    • 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
    • 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
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0018—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for preventing ghost images
    • 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
    • G02B7/026—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using retaining rings or springs
    • 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
    • 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
    • G02B13/004—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 four lenses

Definitions

  • This application relates to the field of optical imaging technology, and in particular to an optical lens.
  • optical lenses have been widely used in various electronic products, such as mobile phones and tablets. With the development of camera technology and people's higher and higher requirements for electronic products, optical lenses are constantly becoming more compact.
  • the purpose of the present application is to provide an optical lens, which aims to solve the problem of difficulty in lens molding of traditional optical lenses.
  • An optical lens including:
  • the lens assembly includes a first lens and a second lens arranged on the image side of the first lens.
  • the first lens includes a first object side surface, a first image side surface and connecting the first object side surface and the first
  • the circumferential surface of the image side, at least part of the first object side is located outside the lens barrel, the first image side includes a first inclined surface directly connected to the circumferential surface, and the second lens is located at the In the lens barrel, the second lens includes a second object side surface, the second object side surface includes a first horizontal plane and a second inclined plane extending obliquely from the first horizontal plane in the image side direction, the second inclined plane and The first inclined surface abuts; and
  • a pressure ring abuts against the first horizontal plane, the pressure ring includes an inner ring surface and an outer ring surface that are opposed to each other, the inner ring surface is connected to the circumferential surface, and the outer ring surface is connected to the mirror ⁇ Tube connection.
  • the included angle between the first inclined surface and the optical axis of the optical lens is 30°-60°.
  • the first object side surface includes a first curved surface and a second curved surface bent and extended from the first curved surface, and both the first curved surface and the second curved surface are located on the first lens From the object side to the image side of the optical zone, the second curved surface is inclined in a direction away from the optical axis of the optical lens.
  • the inner ring surface is glued to the circumferential surface, and a glue containing groove is formed between the inner ring surface and the circumferential surface, and the outer ring surface is connected to the mirror Tube glued.
  • the lens assembly includes a first shading sheet, and the first shading sheet is provided between the first lens and the second lens.
  • the first image side surface further includes a first bearing surface connected to the first inclined surface
  • the second object side surface further includes a second bearing surface connected to the second inclined surface
  • the first shading sheet is sandwiched between the first bearing surface and the second bearing surface.
  • the lens assembly further includes a third lens arranged on the image side of the second lens and a second shading plate arranged between the second lens and the third lens, the The outer diameter of the third lens is smaller than the outer diameter of the second lens.
  • the second lens further includes a second image side surface, and the second image side surface includes a second horizontal plane, a third inclined surface, and a third bearing surface connected in sequence, and the third inclined surface is
  • the second horizontal surface extends obliquely in the image side direction
  • the third lens includes a third object side surface
  • the third object side surface includes a third horizontal plane, a fourth inclined surface, and a fourth bearing surface that are sequentially connected.
  • the fourth inclined surface extends obliquely from the third horizontal plane in the image side direction, the second horizontal plane abuts on the third horizontal plane, the third inclined plane abuts on the fourth inclined plane, and the second light shielding sheet It is sandwiched between the third bearing surface and the fourth bearing surface.
  • the lens assembly further includes a fourth lens and a fifth lens.
  • the third lens, the fourth lens, and the fifth lens are arranged in sequence And the outer diameter gradually decreases;
  • the lens assembly further includes a third shading sheet and a fourth shading sheet, the third shading sheet is arranged between the third lens and the fourth lens, and the fourth shading sheet is arranged on the fourth lens. Between the lens and the fifth lens.
  • the first lens is a plastic lens
  • the second lens is a plastic lens
  • the circumferential surface of the first lens is directly connected to the first inclined surface.
  • This design greatly reduces the outer diameter of the first lens, which can well improve the appearance problems such as flow marks and trapped air.
  • the first lens is formed by injection molding, the height of the gate can be increased, the difficulty of forming the first lens is reduced, and the surface shape of the first lens is greatly improved.
  • FIG. 1 is a schematic structural diagram of an optical lens according to an embodiment of the application.
  • FIG. 2 is a schematic diagram of the structure of the lens barrel in the optical lens shown in FIG. 1;
  • FIG. 3 is a schematic diagram of the structure of the first lens in the optical lens shown in FIG. 1;
  • FIG. 4 is a schematic structural diagram of a second lens in the optical lens shown in FIG. 1;
  • FIG. 5 is a schematic structural diagram of a third lens in the optical lens shown in FIG. 1;
  • FIG. 6 is a schematic diagram of the structure of the pressure ring in the optical lens shown in FIG. 1;
  • FIG. 7 is a schematic diagram of the structure of the first lens in a conventional optical lens.
  • the optical lens of an embodiment can be applied to electronic products such as mobile phones and tablets.
  • the optical lens includes a lens barrel 100 and a lens assembly 200.
  • the lens barrel 100 is used as the main mounting structure of the lens assembly 200. It can be a cylinder or a square cylinder.
  • the lens barrel 100 includes a bottom wall 110 and a side wall 120.
  • One end of the side wall 120 close to the object side is open.
  • the bottom wall 110 is disposed at an end of the side wall 120 close to the image side and extends inwardly from the side wall 120.
  • the bottom wall 110 and the side wall 120 are connected to form the accommodating cavity 102.
  • the side of the side wall 120 close to the accommodating cavity 102 is a multi-step surface 124, and from the object side to the image side, the inner diameter of the step surface 124 gradually increases .
  • the lens assembly 200 includes a plurality of lenses arranged in sequence from the object side to the image side, which are a first lens 210, a second lens 220, a third lens 230, a fourth lens 240, and a fifth lens 250, that is, In this embodiment, the lens assembly 200 includes 5 lenses in total.
  • the outer diameter of the first lens 210 is smaller than the outer diameter of the second lens 220, the outer diameter of the second lens 220, the outer diameter of the third lens 230, the outer diameter of the fourth lens 240, and the outer diameter of the fifth lens 250 gradually Therefore, it is not difficult to understand that among the plurality of lenses, the first lens 210 is closest to the object side, the fifth lens 250 is closest to the image side, and the outer diameter of the second lens 220 is the largest.
  • the second lens 220, the third lens 230, the fourth lens 240, and the fifth lens 250 are all disposed in the accommodating cavity 102, and the image side surface of the fifth lens 250 abuts the bottom wall 110.
  • the outer diameters of these lenses are compatible with the inner diameters of the corresponding stepped surfaces 124, so that the deviation of these lenses in the direction perpendicular to the optical axis 10 can be avoided.
  • the first lens 210 includes a first object side surface 212, a first image side surface 214, and a circumferential surface 216 connecting the first object side surface 212 and the first image side surface 214.
  • the first object side surface 212 is located outside the lens barrel 100, and the first object side surface 212 includes a first curved surface 2122 and a second curved surface 2124 bent from the first curved surface 2122, the first curved surface 2122 and the second curved surface 2124 They are all located in the optical zone of the first lens 210.
  • the second curved surface 2124 is inclined in a direction away from the optical axis 10.
  • the second curved surface 2124 is between the optical axis 10 The distance gradually increases. Since the first lens 210 is a plastic lens and is manufactured by an injection molding process, the design of the second curved surface 2124 can facilitate the drafting of the first lens 210. Of course, in other embodiments, the first lens 210 can also be a glass lens. In this case, the second curved surface 2124 can also be designed as a cylindrical surface with the optical axis 10 as the axis, that is, the generatrix of the second curved surface 2124 is parallel. A straight line on the optical axis 10.
  • the first image side surface 214 includes a first inclined surface 2142 directly connected to the circumferential surface 216. From the object side to the image side, the first inclined surface 2142 is inclined toward the direction close to the optical axis 10.
  • the circumferential surface 216 is a cylindrical surface with the optical axis 10 as an axis.
  • the second lens 220 includes a second object side surface 222.
  • the second object side surface 222 includes a first horizontal plane 2222 perpendicular to the optical axis 10 and a second inclined surface 2224 extending obliquely from the first horizontal plane 2222 toward the image side, and the second inclined surface 2224 Inclined in a direction approaching the optical axis 10, the second inclined surface 2224 abuts the first inclined surface 2142.
  • the included angle between the first inclined surface 2142 and the optical axis 10 is 30°-60°. In other embodiments, the included angle between the first inclined surface 2142 and the optical axis 10 may also be other angles. .
  • the first lens 210 and the second lens 220 buckle, and a part of the structure of the first lens 210 extends to the outside of the lens barrel 100. Therefore, the first lens 210 is located
  • the size A1 of this part of the structure outside the lens barrel 100 determines the head size of the entire optical lens.
  • the head size of the optical lens is no longer restricted by the wall thickness of the lens barrel 100, and the head size can be greatly reduced.
  • a horizontal extension surface 211a is connected between the circumferential surface 216a of the first lens 210a and the first inclined surface 2142a, so the outer diameter of the first lens 210a of the conventional optical lens is relatively
  • the thickness-to-thin ratio of the first lens 210a will be relatively small, which will cause the first lens 210a to be difficult to form, and it is difficult to ensure the surface shape of the first lens 210a. Appearance problems such as marks and trapped air.
  • the outer diameter of the first lens 210 in this embodiment is greatly reduced, which can well improve the appearance problems such as flow marks and trapped air.
  • the draft angle F of the first lens 210 can be increased, which is more convenient for demolding, and improves the manufacturing accuracy of the optical lens.
  • the increase of the draft angle F means that the head size A1 can be smaller than the A2 size of the traditional optical lens, and it will also make the head size of the optical lens smaller.
  • the B1 size of the first lens 210 will also be larger than the B2 size of the conventional optical lens.
  • the height of the gate can also be increased, thereby greatly reducing the difficulty of molding the first lens 210 and improving the surface shape of the first lens 210.
  • the second lens 220, the third lens 230, the fourth lens 240, and the fifth lens 250 are also plastic lenses.
  • the lens assembly 200 further includes a first shading sheet 260 arranged between the first lens 210 and the second lens 220.
  • the first image side surface 214 further includes a first supporting surface connected to the first inclined surface 2142.
  • the second object side surface 222 further includes a second bearing surface 2226 connected to the second inclined surface 2224.
  • the first bearing surface 2144 and the second bearing surface 2226 are both planes perpendicular to the optical axis 10, and the first light-shielding surface
  • the sheet 260 is sandwiched between the first bearing surface 2144 and the second bearing surface 2226.
  • the first shading sheet 260 has the function of blocking stray light, so as to prevent stray light from entering the imaging area and affecting the imaging quality.
  • the second lens 220 and the third lens 230 are also snapped together.
  • the second lens 220 further includes a second image side surface 224, and the second image side surface 224 includes sequential The second horizontal plane 2242, the third inclined plane 2244, and the third bearing surface 2246 are connected, the second horizontal plane 2242 is perpendicular to the optical axis 10, the third inclined plane 2244 extends obliquely from the second horizontal plane 2242 toward the image side, and the third inclined plane 2244 Inclined to the direction close to the optical axis 10, the third bearing surface 2246 is parallel to the second horizontal plane 2242.
  • the third lens 230 includes a third object side surface 232.
  • the third object side surface 232 includes a third horizontal plane 2322, a fourth inclined surface 2324, and a fourth bearing surface 2326 that are sequentially connected.
  • the third horizontal plane 2322 is perpendicular to the optical axis 10, and the fourth The inclined surface 2324 extends obliquely from the third horizontal plane 2322 toward the image side, and the fourth inclined surface 2324 is inclined toward the direction close to the optical axis 10, and the fourth bearing surface 2326 is parallel to the third horizontal plane 2322.
  • the second horizontal plane 2242 abuts against the third horizontal plane 2322, the third inclined surface 2244 abuts against the fourth inclined surface 2324, and the third bearing surface 2246 and the fourth bearing surface 2326 are disposed oppositely.
  • the lens assembly 200 further includes a second shading sheet 270 arranged between the second lens 220 and the third lens 230.
  • the second shading sheet 270 is sandwiched between the third bearing surface 2246 and the fourth bearing surface. Between the leaning surfaces 2326, it plays a role of blocking stray light, and prevents stray light from entering the imaging area and affecting the imaging quality.
  • the lens assembly 200 further includes a third shading sheet 280 and a fourth shading sheet 290, the third shading sheet 280 is provided between the third lens 230 and the fourth lens 240, and the fourth shading sheet 290 is provided Between the fourth lens 240 and the fifth lens 250. Both the third shading sheet 280 and the fourth shading sheet 290 can block stray light and improve the imaging effect.
  • the first shading sheet 260, the second shading sheet 270, the third shading sheet 280, and the fourth shading sheet 290 are all made of black plastic material through injection molding to improve dimensional accuracy. It will not reduce the effect of blocking stray light due to manufacturing errors, or block too much effective imaging light, which will affect the imaging quality.
  • these light-shielding sheets can also be made of black film through stamping.
  • the optical lens further includes a pressure ring 300.
  • the pressure ring 300 includes an inner ring surface 310 and an outer ring surface 320 that are opposed to each other, and the inner ring surface 310 is connected to the circumferential surface 216.
  • the outer ring surface 320 is connected with the side of the side wall 120 close to the accommodating cavity 102, so as to realize the connection between the pressing ring 300 and the lens barrel 100, thereby realizing the first lens 210 is fixed on the lens barrel 100 for the purpose.
  • the pressing ring 300 abuts against the first horizontal plane 2222, so that the pressing ring 300 can cooperate with the bottom wall 110 to realize the fixing of the second lens 220, the third lens 230, the fourth lens 240 and the fifth lens 250 to the lens barrel. Purpose on 100.
  • the outer ring surface 320 and the lens barrel 100 are glued together in the form of glue, and at the same time, a glue containing groove 106 is formed between the inner ring surface 310 and the circumferential surface 216.
  • the glue dispensing form realizes the glue connection between the inner ring surface 310 and the circumferential surface 216.
  • the pressure ring 300 may also be connected to the side wall 120 through a threaded connection, which is not exclusively limited herein.
  • the fifth lens 250, the fourth lens 240, the third lens 230, the second lens 220, and the first lens 210 are assembled in the order from the image side to the object side.
  • the lens assembly 200 is finally fixed by the pressing ring 300.
  • the number of lenses included in the lens assembly 200 is not limited to the embodiment shown in FIG. 1, and the number of lenses can be 2, 3, 4, or more than 6 lenses.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Lens Barrels (AREA)

Abstract

一种光学镜头。光学镜头包括镜筒（100）、镜片组件（200）及压环（300），镜片组件（200）包括第一镜片（210）及第二镜片（220），第一镜片（210）的第一物侧面（212）的至少部分位于镜筒（100）外部，第一镜片（210）的第一像侧面（214）包括与周向面（216）直接连接的第一斜面（2142），第二镜片（220）的第二物侧面（222）包括第一水平面（2222）及自第一水平面（2222）向像侧方向倾斜延伸的第二斜面（2224），第二斜面（2224）与第一斜面（2142）抵接。压环（300）与第一水平面（2222）抵接，压环（300）的内环面（310）与周向面（216）连接，压环（300）的外环面（320）与镜筒（100）连接。该光学镜头的第一镜片（210）的周向面（216）与第一斜面（2142）直接连接，这样设计大大减小了第一镜片（210）的外径，从而能够很好地改善流痕、困气等外观问题，同时，在注塑形成第一镜片（210）时，能够增加浇口的高度，降低第一镜片（210）的成型难度，大大改善第一镜片（210）的面型。

Description

光学镜头 技术领域
本申请涉及光学成像技术领域，尤其涉及一种光学镜头。
 背景技术
现如今，光学镜头已被广泛地应用在各式电子产品中，例如手机、平板等。随着摄像技术的发展以及人们对电子产品的要求越来越高，光学镜头正不断地变得更加小型化。
 技术问题
但这也增加了镜片的成型难度，使得镜片的面型难以得到保证。
因此，有必要提供一种光学镜头来解决上述技术问题。
 技术解决方案
本申请的目的在于提供一种光学镜头，旨在解决传统的光学镜头的镜片成型难度大的问题。
本申请的技术方案如下：
一种光学镜头，包括：
镜筒；
镜片组件，包括第一镜片及设置在所述第一镜片像侧的第二镜片，所述第一镜片包括第一物侧面、第一像侧面及连接所述第一物侧面与所述第一像侧面的周向面，所述第一物侧面的至少部分位于所述镜筒外部，所述第一像侧面包括与所述周向面直接连接的第一斜面，所述第二镜片位于所述镜筒内，所述第二镜片包括第二物侧面，所述第二物侧面包括第一水平面及自所述第一水平面向像侧方向倾斜延伸的第二斜面，所述第二斜面与所述第一斜面抵接；以及
压环，与所述第一水平面抵接，所述压环包括相对设置的内环面与外环面，所述内环面与所述周向面连接，所述外环面与所述镜筒连接。
在其中一个实施例中，所述第一斜面与所述光学镜头的光轴之间的夹角为30°-60°。
在其中一个实施例中，所述第一物侧面包括第一曲面及自所述第一曲面弯折延伸的第二曲面，所述第一曲面与所述第二曲面均位于所述第一镜片的光学区，自物侧至像侧的方向上，所述第二曲面朝远离所述光学镜头的光轴的方向倾斜。
在其中一个实施例中，所述内环面与所述周向面胶接，且所述内环面与所述周向面之间形成有容胶槽，所述外环面与所述镜筒胶接。
在其中一个实施例中，所述镜片组件包括第一遮光片，所述第一遮光片设于所述第一镜片与所述第二镜片之间。
在其中一个实施例中，所述第一像侧面还包括与所述第一斜面连接的第一承靠面，所述第二物侧面还包括与所述第二斜面连接的第二承靠面，所述第一遮光片夹设在所述第一承靠面与所述第二承靠面之间。
在其中一个实施例中，所述镜片组件还包括设于所述第二镜片像侧的第三镜片及设于所述第二镜片与所述第三镜片之间的第二遮光片，所述第三镜片的外径小于所述第二镜片的外径。
在其中一个实施例中，所述第二镜片还包括第二像侧面，所述第二像侧面包括顺次连接的第二水平面、第三斜面及第三承靠面，所述第三斜面自所述第二水平面向像侧方向倾斜延伸，所述第三镜片包括第三物侧面，所述第三物侧面包括顺次连接的第三水平面、第四斜面及第四承靠面，所述第四斜面自所述第三水平面向像侧方向倾斜延伸，所述第二水平面与所述第三水平面抵接，所述第三斜面与所述第四斜面抵接，所述第二遮光片夹设在所述第三承靠面与所述第四承靠面之间。
在其中一个实施例中，所述镜片组件还包括第四镜片及第五镜片，在物侧至像侧的方向上，所述第三镜片、所述第四镜片及所述第五镜片依次设置且外径逐渐减小；
所述镜片组件还包括第三遮光片及第四遮光片，所述第三遮光片设于所述第三镜片与所述第四镜片之间，所述第四遮光片设于所述第四镜片与所述第五镜片之间。
在其中一个实施例中，所述第一镜片为塑料镜片，所述第二镜片为塑料镜片。
 有益效果
本申请的有益效果在于：
上述的光学镜头，第一镜片的周向面与第一斜面直接连接，这样设计大大减小了第一镜片的外径，从而能够很好地改善流痕、困气等外观问题，同时，在注塑形成第一镜片时，能够增加浇口的高度，降低第一镜片的成型难度，大大改善第一镜片的面型。
 附图说明
图1为本申请一实施方式的光学镜头的结构示意图；
图2为图1所示的光学镜头中镜筒的结构示意图；
图3为图1所示的光学镜头中第一镜片的结构示意图；
图4为图1所示的光学镜头中第二镜片的结构示意图；
图5为图1所示的光学镜头中第三镜片的结构示意图；
图6为图1所示的光学镜头中压环的结构示意图；
图7为传统光学镜头中第一镜片的结构示意图。
 本发明的实施方式
下面结合附图和实施方式对本申请作进一步说明。
如图1及图2所示，一实施方式的光学镜头能应用至手机、平板等电子产品中，光学镜头包括镜筒100及镜片组件200，镜筒100作为镜片组件200主要的安装结构，可以是圆筒也可以是方筒。
镜筒100包括底壁110及侧壁120，侧壁120靠近物侧的一端敞口设置，底壁110设置在侧壁120靠近像侧的一端，并自侧壁120向内弯折延伸。底壁110与侧壁120连接形成容置腔102，侧壁120靠近容置腔102的一面为多级阶梯面124，且自物侧至像侧的方向上，阶梯面124的内径逐渐增大。
镜片组件200包括自物侧至像侧的方向依次设置的多个镜片，分别为第一镜片210、第二镜片220、第三镜片230、第四镜片240及第五镜片250，也即，在本实施方式中，镜片组件200共包含5个镜片。其中，第一镜片210的外径小于第二镜片220的外径，第二镜片220的外径、第三镜片230的外径、第四镜片240的外径、第五镜片250的外径逐渐减小，因此，不难理解地是，在这多个镜片中，第一镜片210最靠近物侧，第五镜片250最靠近像侧，第二镜片220的外径是最大的。
而且，第二镜片220、第三镜片230、第四镜片240及第五镜片250均设置在容置腔102内，第五镜片250的像侧面与底壁110抵接。这几个镜片的外径与相对应的阶梯面124的内径是相适配的，从而能避免这些镜片在垂直于光轴10的方向上发生偏移。
请参考图1、图3和图4，第一镜片210包括第一物侧面212、第一像侧面214及连接第一物侧面212与第一像侧面214的周向面216。其中，第一物侧面212的至少部分位于镜筒100外部，且第一物侧面212包括第一曲面2122及自第一曲面2122弯折的第二曲面2124，第一曲面2122与第二曲面2124均位于第一镜片210的光学区。自物侧至像侧的方向上，第二曲面2124朝远离光轴10的方向倾斜，换句话说，也就是，自物侧至像侧的方向上，第二曲面2124与光轴10之间的距离逐渐增大。由于第一镜片210为塑料镜片，通过注塑工艺制作而成，第二曲面2124这样设计能够方便第一镜片210的拔模。当然，在其他实施方式中，第一镜片210还可以是玻璃镜片，此时，第二曲面2124也可以设计为以光轴10为轴线的圆柱面，也即，第二曲面2124的母线为平行于光轴10的直线。
第一像侧面214包括与周向面216直接连接的第一斜面2142，自物侧至像侧的方向上，第一斜面2142朝靠近光轴10的方向倾斜。周向面216为以光轴10为轴线的圆柱面。第二镜片220包括第二物侧面222，第二物侧面222包括垂直于光轴10的第一水平面2222及自第一水平面2222向像侧方向倾斜延伸的第二斜面2224，且第二斜面2224朝靠近光轴10的方向倾斜，第二斜面2224与第一斜面2142抵接。在本实施方式中，第一斜面2142与光轴10之间的夹角为30°-60°，在其他实施方式中，第一斜面2142与光轴10之间的夹角还可以为其他角度。
不难理解的是，对于本实施方式的光学镜头来说，第一镜片210与第二镜片220坎合，第一镜片210的部分结构延伸至镜筒100的外部，因此，第一镜片210位于镜筒100外部的这部分结构的尺寸A1决定了整个光学镜头的头部尺寸，光学镜头的头部尺寸不再受镜筒100壁厚的限制，头部尺寸得以大大减小。
在图7所示的传统第一镜片210a中，第一镜片210a的周向面216a与第一斜面2142a之间还连接有水平延伸面211a，所以传统光学镜头的第一镜片210a的外径较大，而受光学参数、生产制作等的影响，第一镜片210a的厚薄比会比较小，就会导致第一镜片210a成型困难，很难保证第一镜片210a的面型，同时还容易出现流痕、困气等外观问题。
因此，与传统的光学镜头相比，本实施方式中的第一镜片210的外径得以大大减小，能够很好地改善流痕、困气等外观问题，而由于第一镜片210的外径减小，第一镜片210的拔模角F便能够增大，更加方便脱模，提高光学镜头的制作精度。拔模角F的增大也就意味着头部尺寸A1能够小于传统光学镜头的A2尺寸，也就会使得光学镜头的头部尺寸更小。同时，第一镜片210的B1尺寸也会相比于传统光学镜头的B2尺寸更大。
另外，在注塑形成第一镜片210时，还能够增加浇口的高度，从而会大大降低第一镜片210的成型难度，改善第一镜片210的面型。
顺便说一下，在本实施方式中，第二镜片220、第三镜片230、第四镜片240及第五镜片250也都是塑料镜片。
镜片组件200还包括设于第一镜片210与第二镜片220之间的第一遮光片260，具体到本实施方式中，第一像侧面214还包括与第一斜面2142连接的第一承靠面2144，第二物侧面222还包括与第二斜面2224连接的第二承靠面2226，第一承靠面2144与第二承靠面2226均为垂直于光轴10的平面，第一遮光片260夹设在第一承靠面2144与第二承靠面2226之间。第一遮光片260具有阻挡杂光的作用，以避免杂光进入成像区域而影响成像品质。
在本实施方式中，第二镜片220与第三镜片230也坎合，具体地，请结合图4及图5，第二镜片220还包括第二像侧面224，第二像侧面224包括顺次连接的第二水平面2242、第三斜面2244及第三承靠面2246，第二水平面2242与光轴10垂直，第三斜面2244自第二水平面2242向像侧方向倾斜延伸，且第三斜面2244向靠近光轴10的方向倾斜，第三承靠面2246平行于第二水平面2242。第三镜片230包括第三物侧面232，第三物侧面232包括顺次连接的第三水平面2322、第四斜面2324及第四承靠面2326，第三水平面2322与光轴10垂直，第四斜面2324自第三水平面2322向像侧方向倾斜延伸，且第四斜面2324向靠近光轴10的方向倾斜，第四承靠面2326平行于第三水平面2322。第二水平面2242与第三水平面2322抵接，第三斜面2244与第四斜面2324抵接，第三承靠面2246与第四承靠面2326相对设置。
请一并结合图1，镜片组件200还包括设于第二镜片220与第三镜片230之间的第二遮光片270，第二遮光片270夹设在第三承靠面2246与第四承靠面2326之间，以起到阻挡杂光的作用，避免杂光进入成像区域而影响成像品质。
进一步，在本实施方式中，镜片组件200还包括第三遮光片280及第四遮光片290，第三遮光片280设于第三镜片230与第四镜片240之间，第四遮光片290设于第四镜片240与第五镜片250之间。第三遮光片280及第四遮光片290均能起到阻挡杂光的作用，提高成像效果。
在本实施方式中，第一遮光片260、第二遮光片270、第三遮光片280及第四遮光片290均是由黑色塑胶材料通过射出成型的方式制成的，以提高尺寸精确度，不会因制作上的误差而降低阻挡杂光的效果，或阻挡过多的有效成像光线，而影响成像品质。在其他实施方式中，这些遮光片还可以由黑色薄膜经过冲压的方式制成。
如图1、图3、图4及图6所示，光学镜头还包括压环300，压环300包括相对设置的内环面310与外环面320，内环面310与周向面216连接，以实现压环300与第一镜片210的连接，外环面320与侧壁120靠近容置腔102的一面连接，以实现压环300与镜筒100的连接，从而实现了将第一镜片210固定在镜筒100上的目的。并且，压环300与第一水平面2222抵接，从而压环300又能与底壁110配合以实现将第二镜片220、第三镜片230、第四镜片240及第五镜片250固定在镜筒100上的目的。
在本实施方式中，外环面320与镜筒100以点胶的形式实现胶接，同时，内环面310与周向面216之间形成有容胶槽106，通过向容胶槽106内点胶的形式实现内环面310与周向面216的胶接。可以理解，在其他实施方式中，压环300还可以通过螺纹连接的方式与侧壁120连接，在此不做唯一限定。
在组装本实施方式的光学镜头时，按照第五镜片250、第四镜片240、第三镜片230、第二镜片220、第一镜片210的顺序，从像侧至物侧的方向依次组装至镜筒100上，最后再通过压环300实现对镜片组件200的固定。
另外，需要说明的是，镜片组件200包含的镜片数目并不限于图1所示的实施例，镜片数目可以为2个、3个、4个或6个以上。
以上所述的仅是本申请的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本申请创造构思的前提下，还可以做出改进，但这些均属于本申请的保护范围。

Claims (10)

  1. 一种光学镜头，其特征在于，包括：
    镜筒；
    镜片组件，包括第一镜片及设置在所述第一镜片像侧的第二镜片，所述第一镜片包括第一物侧面、第一像侧面及连接所述第一物侧面与所述第一像侧面的周向面，所述第一物侧面的至少部分位于所述镜筒外部，所述第一像侧面包括与所述周向面直接连接的第一斜面，所述第二镜片位于所述镜筒内，所述第二镜片包括第二物侧面，所述第二物侧面包括第一水平面及自所述第一水平面向像侧方向倾斜延伸的第二斜面，所述第二斜面与所述第一斜面抵接；以及
    压环，与所述第一水平面抵接，所述压环包括相对设置的内环面与外环面，所述内环面与所述周向面连接，所述外环面与所述镜筒连接。
  2. 根据权利要求1所述的光学镜头，其特征在于，所述第一斜面与所述光学镜头的光轴之间的夹角为30°-60°。
  3. 根据权利要求1所述的光学镜头，其特征在于，所述第一物侧面包括第一曲面及自所述第一曲面弯折延伸的第二曲面，所述第一曲面与所述第二曲面均位于所述第一镜片的光学区，自物侧至像侧的方向上，所述第二曲面朝远离所述光学镜头的光轴的方向倾斜。
  4. 根据权利要求1所述的光学镜头，其特征在于，所述内环面与所述周向面胶接，且所述内环面与所述周向面之间形成有容胶槽，所述外环面与所述镜筒胶接。
  5. 根据权利要求1所述的光学镜头，其特征在于，所述镜片组件包括第一遮光片，所述第一遮光片设于所述第一镜片与所述第二镜片之间。
  6. 根据权利要求5所述的光学镜头，其特征在于，所述第一像侧面还包括与所述第一斜面连接的第一承靠面，所述第二物侧面还包括与所述第二斜面连接的第二承靠面，所述第一遮光片夹设在所述第一承靠面与所述第二承靠面之间。
  7. 根据权利要求1所述的光学镜头，其特征在于，所述镜片组件还包括设于所述第二镜片像侧的第三镜片及设于所述第二镜片与所述第三镜片之间的第二遮光片，所述第三镜片的外径小于所述第二镜片的外径。
  8. 根据权利要求7所述的光学镜头，其特征在于，所述第二镜片还包括第二像侧面，所述第二像侧面包括顺次连接的第二水平面、第三斜面及第三承靠面，所述第三斜面自所述第二水平面向像侧方向倾斜延伸，所述第三镜片包括第三物侧面，所述第三物侧面包括顺次连接的第三水平面、第四斜面及第四承靠面，所述第四斜面自所述第三水平面向像侧方向倾斜延伸，所述第二水平面与所述第三水平面抵接，所述第三斜面与所述第四斜面抵接，所述第二遮光片夹设在所述第三承靠面与所述第四承靠面之间。
  9. 根据权利要求7所述的光学镜头，其特征在于，所述镜片组件还包括第四镜片及第五镜片，在物侧至像侧的方向上，所述第三镜片、所述第四镜片及所述第五镜片依次设置且外径逐渐减小；
    所述镜片组件还包括第三遮光片及第四遮光片，所述第三遮光片设于所述第三镜片与所述第四镜片之间，所述第四遮光片设于所述第四镜片与所述第五镜片之间。
  10. 根据权利要求1所述的光学镜头，其特征在于，所述第一镜片为塑料镜片，所述第二镜片为塑料镜片。
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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209525505U (zh) * 2018-11-19 2019-10-22 瑞声科技(新加坡)有限公司 玻璃镜片及使用该玻璃镜片的镜头模组
CN209525516U (zh) * 2018-12-29 2019-10-22 瑞声科技(新加坡)有限公司 镜头以及电子设备
CN112462481B (zh) * 2019-09-09 2022-07-15 玉晶光电(厦门)有限公司 支撑组件与可携式光学成像镜头
WO2021195878A1 (zh) * 2020-03-30 2021-10-07 南昌欧菲精密光学制品有限公司 压环、镜头、摄像模组及电子设备
WO2022126660A1 (zh) * 2020-12-18 2022-06-23 欧菲光集团股份有限公司 镜头组件、镜头模组及电子设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014156954A1 (ja) * 2013-03-27 2014-10-02 富士フイルム株式会社 レンズユニット、撮像モジュール、及び電子機器
CN207528984U (zh) * 2017-10-25 2018-06-22 瑞声科技(新加坡)有限公司 镜头组件
CN109358402A (zh) * 2018-12-17 2019-02-19 浙江舜宇光学有限公司 成像镜头
CN208636498U (zh) * 2018-08-03 2019-03-22 瑞声科技(新加坡)有限公司 镜头模组
CN208737073U (zh) * 2018-08-27 2019-04-12 浙江舜宇光学有限公司 成像镜头

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7088530B1 (en) * 2005-01-28 2006-08-08 Eastman Kodak Company Passively aligned optical elements
JP4959183B2 (ja) * 2005-12-12 2012-06-20 カンタツ株式会社 撮影レンズ及び撮影レンズを用いた光学機器
CN206339751U (zh) * 2016-12-10 2017-07-18 瑞声科技(新加坡)有限公司 一种光学镜头
CN207074290U (zh) * 2016-12-10 2018-03-06 瑞声科技(新加坡)有限公司 镜头模组

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014156954A1 (ja) * 2013-03-27 2014-10-02 富士フイルム株式会社 レンズユニット、撮像モジュール、及び電子機器
CN207528984U (zh) * 2017-10-25 2018-06-22 瑞声科技(新加坡)有限公司 镜头组件
CN208636498U (zh) * 2018-08-03 2019-03-22 瑞声科技(新加坡)有限公司 镜头模组
CN208737073U (zh) * 2018-08-27 2019-04-12 浙江舜宇光学有限公司 成像镜头
CN109358402A (zh) * 2018-12-17 2019-02-19 浙江舜宇光学有限公司 成像镜头

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