CN104865675B - Miniature camera module - Google Patents

Miniature camera module Download PDF

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Publication number
CN104865675B
CN104865675B CN201510262905.0A CN201510262905A CN104865675B CN 104865675 B CN104865675 B CN 104865675B CN 201510262905 A CN201510262905 A CN 201510262905A CN 104865675 B CN104865675 B CN 104865675B
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CN
China
Prior art keywords
lens
aspherical
radius
spacer ring
optical axis
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Expired - Fee Related
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CN201510262905.0A
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Chinese (zh)
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CN104865675A (en
Inventor
凌永康
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Nanjing Lianhexun Optoelectronics Technology Co Ltd
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Nanjing Lianhexun Optoelectronics Technology Co Ltd
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Priority to CN201510262905.0A priority Critical patent/CN104865675B/en
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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
    • G02B13/003—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 two 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

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

Abstract

A miniature camera module is characterized in that the module comprises a lens cone (1), a first space ring (2), a first lens (3), a second space ring (4), a second lens (5), a third space ring (6) and a filter (7); the first space ring (2), the first lens (3), the second space ring (4), the second lens (5), the third space ring (6) and the filter (7) are successively arranged in the lens cone (1); an overall length (TTL) of a camera lens is 2.35 millimeters. The miniature camera module adopts two aspherical lenses. The miniature camera module has advantages of miniaturization and high optical performance. The miniature camera module can be conveniently installed in digital equipment which has a high requirement to a camera size.

Description

Minisize pick-up head module
Technical field
The present invention relates to optical technical field, especially a kind of minisize pick-up head module.
Background technology
With the requirement more and more higher of the portability of optical lens, digital image field is constantly brought forth new ideas, changes, is developed, Mobile phone, in succession, notebook computer it is also proposed miniaturization, high-resolution to camera all in lightening, miniaturization Requirement.
The content of the invention
It is an object of the invention to provide a kind of minisize pick-up head module, miniaturization and high performance requirement are met.
The technical scheme is that：
A kind of minisize pick-up head module, including lens barrel 1, the first spacer ring 2, the first lens 3, the second spacer ring 4, the second lens 5, 3rd spacer ring 6 and colour filter 7, first spacer ring 2, the first lens 3, the second spacer ring 4, the second lens 5, the 3rd spacer ring 6 and filter Color chips 7 is once arranged in lens barrel 1, and the overall length TTL of camera lens is 2.35 millimeters.
The thing side surface S1 of the first lens of first lens 3 is non-spherical surface, the first lens of the first lens 3 Image side surface S2 is non-spherical surface, and the thing side surface S3 of the second lens of the second lens 5 is non-spherical surface, the second lens 5 The second lens image side surface S4 be non-spherical surface.
The aspherical parameter below equation of the thing side surface S1 of first lens and the image side surface S2 of the first lens Represent：
； Wherein Z is the side-play amount using surface vertices as reference optical axis along optical axis A directions in the position that height is y, and C is osculating sphere The thing side surface S1 of the inverse of radius, that is, the radius of curvature close at optical axis A, i.e. the first lens, the image side of the first lens The inverse of the radius of curvature of surface S2, k represents quadratic surface coefficient, and y is aspherical height, i.e., from lens centre toward rims of the lens Height, be also the horizontal range away from aspherical symmetry axis, A2、A4、A6、A8、A10、A12、A14、A16It is asphericity coefficient；First The aspherical parameter of lens 3 is as shown in table 1：
The aspherical parameter of the lens of table 1. first
Aspherical parameter S1 faces S2 faces
Radius of curvature (millimeter) 1.577789 -0.3715324
Effective diameter (millimeter) R1=0.6205686 R2=0.90
k 0.039020568 -0.034822324
A2 -1.377972 -2.3041151
A4 17.393861 -18.76918
A6 -200.75317 769.34995
A8 553.51489 -10591.245
A10 0 72861.973
A12 0 -253013.55
A14 0 351467.39
A16 0 -3.818261
The aspherical parameter below equation of the thing side surface S3 of second lens and the image side surface S4 of the second lens Represent：
； Wherein Z is the side-play amount using surface vertices as reference optical axis along optical axis A directions in the position that height is Y, and C is osculating sphere The thing side surface S3 of the inverse of radius, that is, the radius of curvature close at optical axis A, i.e. the second lens, the image side of the second lens The inverse of the radius of curvature of surface S4, k represents quadratic surface coefficient, and y is aspherical height, i.e., from lens centre toward rims of the lens Height, be also the horizontal range away from aspherical symmetry axis, A2、A4、A6、A8、A10、A12、A14、A16It is asphericity coefficient；Second The aspherical parameter of lens 5 is as shown in table 2：
The aspherical parameter of the lens of table 2. second
Aspherical parameter S3 faces S4 faces
Radius of curvature (millimeter) -0.3842587 -0.7680068
Effective diameter (millimeter) R3=0.90 R4=1.20
k -0.45948208 -0.034039574
A2 -8.692342 -1.661266
A4 194.84553 26.148734
A6 -2400.6085 -205.98658
A8 17971.108 1062.5304
A10 -79851.108 -3369.8704
A12 190142.78 5877.8459
A14 -182669.47 -4282.4738
A16 -11.871003 -11.049573
It is 60 degree that the optics of first lens 3 is eccentric, and refractive index is 1.491756, and abbe number is 57.440791, mirror Piece thickness D1=0.65 ± 0.05 millimeter.
It is 60 degree that the optics of second lens 5 is eccentric, and refractive index is 1.585470, and abbe number is 29.909185, mirror Piece thickness D2=0.45 ± 0.05 millimeter.
The beneficial effects of the invention are as follows：
Minisize pick-up head module of the invention has small-sized using 2 aspherical lens, the micro-lens that the present invention is provided Change, the advantage of high optical property, be easily installed in the various digital equipments high to shooting area of bed requirement.
Brief description of the drawings
Fig. 1 is the assembling structure schematic diagram of minisize pick-up head module of the invention.
Fig. 2 is the cross section structure schematic diagram of the first lens of the invention.
Fig. 3 is the planar structure schematic diagram of the first lens of the invention.
Fig. 4 is the cross section structure schematic diagram of the second lens of the invention.
Fig. 5 is the planar structure schematic diagram of the second lens of the invention.
Fig. 6 is the cross section structure diagram of lens barrel of the invention.
Fig. 7 is the left view structural representation of lens barrel of the invention.
Fig. 8 is the right side structural representation of lens barrel of the invention.
In figure：1 is lens barrel, 2 is the first spacer ring, 3 is the first lens, 4 is the second spacer ring, 5 is the second lens, 6 is the 3rd Spacer ring, 7 are colour filter, the thing side surface that S1 is the first lens, the image side surface that S2 is the first lens, the thing that S3 is the second lens Side surface, S4 be the image side surface of the second lens, A be optical axis.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings：
As Fig. 1 to 8, a kind of minisize pick-up head module, including lens barrel 1, the first spacer ring 2, the first lens 3, the second spacer ring 4, Second lens 5, the 3rd spacer ring 6 and colour filter 7, first spacer ring 2, the first lens 3, the second spacer ring 4, the second lens the 5, the 3rd Spacer ring 6 and colour filter 7 are once arranged in lens barrel 1, and the overall length TTL of camera lens is 2.35 millimeters.
The thing side surface S1 of the first lens of the first lens 3 is non-spherical surface, the image side of the first lens of the first lens 3 Surface S2 is non-spherical surface, and the thing side surface S3 of the second lens of the second lens 5 is non-spherical surface, the of the second lens 5 The image side surface S4 of two lens is non-spherical surface.
The aspherical parameter of the thing side surface S1 of the first lens and the image side surface S2 of the first lens is represented with below equation：
； Wherein Z is the side-play amount using surface vertices as reference optical axis along optical axis A directions in the position that height is y, and C is osculating sphere The thing side surface S1 of the inverse of radius, that is, the radius of curvature close at optical axis A, i.e. the first lens, the image side of the first lens The inverse of the radius of curvature of surface S2, k represents quadratic surface coefficient, and y is aspherical height, i.e., from lens centre toward rims of the lens Height, be also the horizontal range away from aspherical symmetry axis, A2、A4、A6、A8、A10、A12、A14、A16It is asphericity coefficient；First The aspherical parameter of lens 3 is as shown in table 1：
The aspherical parameter of the lens of table 1. first
Aspherical parameter S1 faces S2 faces
Radius of curvature (millimeter) 1.577789 -0.3715324
Effective diameter (millimeter) R1=0.6205686 R2=0.90
k 0.039020568 -0.034822324
A2 -1.377972 -2.3041151
A4 17.393861 -18.76918
A6 -200.75317 769.34995
A8 553.51489 -10591.245
A10 0 72861.973
A12 0 -253013.55
A14 0 351467.39
A16 0 -3.818261
The aspherical parameter of the thing side surface S3 of the second lens and the image side surface S4 of the second lens is represented with below equation：
； Wherein Z is the side-play amount using surface vertices as reference optical axis along optical axis A directions in the position that height is Y, and C is osculating sphere The thing side surface S3 of the inverse of radius, that is, the radius of curvature close at optical axis A, i.e. the second lens, the image side of the second lens The inverse of the radius of curvature of surface S4, k represents quadratic surface coefficient, and y is aspherical height, i.e., from lens centre toward rims of the lens Height, be also the horizontal range away from aspherical symmetry axis, A2、A4、A6、A8、A10、A12、A14、A16It is asphericity coefficient；Second The aspherical parameter of lens 5 is as shown in table 2：
The aspherical parameter of the lens of table 2. second
Aspherical parameter S3 faces S4 faces
Radius of curvature (millimeter) -0.3842587 -0.7680068
Effective diameter (millimeter) R3=0.90 R4=1.20
k -0.45948208 -0.034039574
A2 -8.692342 -1.661266
A4 194.84553 26.148734
A6 -2400.6085 -205.98658
A8 17971.108 1062.5304
A10 -79851.108 -3369.8704
A12 190142.78 5877.8459
A14 -182669.47 -4282.4738
A16 -11.871003 -11.049573
It is 60 degree that the optics of the first lens 3 is eccentric, and refractive index is 1.491756, and abbe number is 57.440791, and eyeglass is thick Degree D1=0.65 ± 0.05 millimeter.
It is 60 degree that the optics of the second lens 5 is eccentric, and refractive index is 1.585470, and abbe number is 29.909185, and eyeglass is thick Degree D2=0.45 ± 0.05 millimeter.
The focal length of the first lens 4 can be extrapolated according to its lens parameter by this area general equation.
The focal length of the second lens 6 can be extrapolated according to its lens parameter by this area general equation.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to structure of the invention Think and scope is defined, under the premise of design concept of the present invention is not departed from, ordinary skill technical staff is to this hair in this area The all variations and modifications that bright technical scheme is made, all should fall into protection scope of the present invention, claimed skill of the invention Art content has all been recorded in detail in the claims.

Claims (4)

1. a kind of minisize pick-up head module, it is characterized in that including lens barrel (1), the first spacer ring (2), the first lens (3), the second spacer ring (4), the second lens (5), the 3rd spacer ring (6) and colour filter (7), first spacer ring (2), the first lens (3), the second spacer ring (4), the second lens (5), the 3rd spacer ring (6) and colour filter (7) are once arranged in lens barrel (1), and the overall length (TTL) of camera lens is 2.35 millimeters；The thing side surface (S1) of the first lens of first lens (3) is non-spherical surface, the of the first lens (3) The image side surface (S2) of one lens is non-spherical surface, and the thing side surface (S3) of the second lens of the second lens (5) is aspherical Surface, the image side surface (S4) of the second lens of the second lens (5) is non-spherical surface；The thing side surface of first lens (S1) represented with below equation with the aspherical parameter on image side surface (S2) of the first lens：
Z = Cy 2 1 + 1 - ( 1 + k ) C 2 y 2 + A 2 y 2 + A 4 y 4 + A 6 y 6 + A 8 y 8 + A 10 y 10 + A 12 y 12 + A 14 y 14 + A 16 y 16 ；
Wherein Z is the side-play amount using surface vertices as reference optical axis along optical axis (A) direction in the position that height is y, and C is close The inverse of the radius of sphere, that is, close to thing side surface (S1), first of the radius of curvature at optical axis (A) place, i.e. the first lens The inverse of the radius of curvature on the image side surface (S2) of lens, k represents quadratic surface coefficient, and y is aspherical height, i.e., from lens The heart, toward the height of rims of the lens, is also the horizontal range away from aspherical symmetry axis, A2、A4、A6、A8、A10、A12、A14、A16It is aspheric Face coefficient；The aspherical parameter of the first lens (3) is as shown in table 1：
The aspherical parameter of the lens of table 1. first
2. minisize pick-up head module according to claim 1, it is characterised in that the thing side surface (S3) of second lens Aspherical parameter with the image side surface (S4) of the second lens is represented with below equation：
Z = Cy 2 1 + 1 - ( 1 + k ) C 2 y 2 + A 2 y 2 + A 4 y 4 + A 6 y 6 + A 8 y 8 + A 10 y 10 + A 12 y 12 + A 14 y 14 + A 16 y 16 ；
Wherein Z is the side-play amount using surface vertices as reference optical axis along optical axis (A) direction in the position that height is Y, and C is close The inverse of the radius of sphere, that is, close to thing side surface (S3), second of the radius of curvature at optical axis (A) place, i.e. the second lens The inverse of the radius of curvature on the image side surface (S4) of lens, k represents quadratic surface coefficient, and y is aspherical height, i.e., from lens The heart, toward the height of rims of the lens, is also the horizontal range away from aspherical symmetry axis, A2、A4、A6、A8、A10、A12、A14、A16It is aspheric Face coefficient；The aspherical parameter of the second lens (5) is as shown in table 2：
The aspherical parameter of the lens of table 2. second
3. minisize pick-up head module according to claim 1, it is characterised in that the optics bias of first lens (3) is 60 degree, refractive index is 1.491756, and abbe number is 57.440791, lens thickness D1=0.65 ± 0.05 millimeter.
4. minisize pick-up head module according to claim 1, it is characterised in that the optics bias of second lens (5) is 60 degree, refractive index is 1.585470, and abbe number is 29.909185, lens thickness D2=0.45 ± 0.05 millimeter.
CN201510262905.0A 2015-05-21 2015-05-21 Miniature camera module Expired - Fee Related CN104865675B (en)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105549182A (en) * 2016-02-19 2016-05-04 南京昂驰光电科技有限公司 Novel miniature optical lens set
CN105572846A (en) * 2016-02-19 2016-05-11 南京昂驰光电科技有限公司 Novel micro optical lens
CN105738983A (en) * 2016-04-13 2016-07-06 南京联河讯光电科技有限责任公司 Second lens for novel ultra-small optical lens group
CN105739062A (en) * 2016-04-13 2016-07-06 南京联河讯光电科技有限责任公司 Novel ultra-small optical lens group

Citations (4)

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Publication number Priority date Publication date Assignee Title
CN201540396U (en) * 2009-07-09 2010-08-04 凤凰光学(广东)有限公司 Camera lens
CN102023363A (en) * 2010-11-17 2011-04-20 泉州市东南光电有限公司 Lens fixing device for improving imaging quality of camera lens
CN102650719A (en) * 2011-02-25 2012-08-29 采钰科技股份有限公司 Image capture lens module and wafer level packaged image capture devices
CN204719302U (en) * 2015-05-21 2015-10-21 南京联河讯光电科技有限责任公司 Minisize pick-up head module

Family Cites Families (1)

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Publication number Priority date Publication date Assignee Title
JP2012042553A (en) * 2010-08-16 2012-03-01 Konica Minolta Opto Inc Image pickup lens and image pickup apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201540396U (en) * 2009-07-09 2010-08-04 凤凰光学(广东)有限公司 Camera lens
CN102023363A (en) * 2010-11-17 2011-04-20 泉州市东南光电有限公司 Lens fixing device for improving imaging quality of camera lens
CN102650719A (en) * 2011-02-25 2012-08-29 采钰科技股份有限公司 Image capture lens module and wafer level packaged image capture devices
CN204719302U (en) * 2015-05-21 2015-10-21 南京联河讯光电科技有限责任公司 Minisize pick-up head module

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