CN101490592A - Imaging apparatus - Google Patents

Imaging apparatus Download PDF

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Publication number
CN101490592A
CN101490592A CNA2007800261739A CN200780026173A CN101490592A CN 101490592 A CN101490592 A CN 101490592A CN A2007800261739 A CNA2007800261739 A CN A2007800261739A CN 200780026173 A CN200780026173 A CN 200780026173A CN 101490592 A CN101490592 A CN 101490592A
Authority
CN
China
Prior art keywords
elastic component
camera head
retaining member
imaging apparatus
ring element
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CNA2007800261739A
Other languages
Chinese (zh)
Inventor
藤原将郎
工藤宪一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Precision Inc
Original Assignee
Seiko Precision Inc
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 Seiko Precision Inc filed Critical Seiko Precision Inc
Publication of CN101490592A publication Critical patent/CN101490592A/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
    • 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
    • H04N23/51—Housings
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lens Barrels (AREA)
  • Studio Devices (AREA)
  • Camera Bodies And Camera Details Or Accessories (AREA)

Abstract

An imaging apparatus (1) is provided with a substrate (70) for mounting an imaging element (60); a sealing frame (50) fixed to the substrate (70) to surround the imaging element (60); a lens holder (30) and a ring member (40), which are movably arranged on the sealing frame (50) in an optical axis direction and are provided with lenses (11, 12) for forming an image on the imaging element (60); a cover member (20), which is arranged to face the lens holder (30) and the ring member (40), on the opposite side to the side whereupon the sealing frame (50) for the lens holder (30) and the ring member (40) is arranged; and an elastic member (90), which is arranged in a space formed by the lens holder (30), the ring member (40) and the cover member (20), and urges the holding member (30) toward the sealing frame (50). The elastic member (90) is formed in a shape for blocking a space formed by the lens holder (30), the ring member (40) and the cover member (20).

Description

Camera head
Technical field
The present invention relates to camera head.
Background technology
In recent years, also can carry out the switching that close shot is taken (low power shooting) and common shooting even be installed to the camera head of portable phone.Such switching need be used to make camera lens in mechanism that optical axis direction moves.Camera head with this mechanism is for example disclosed in patent document 1.
Fig. 5 be illustrated in the portable phone adopt in the past have the camera head of the mechanism that is used to drive camera lens the time the figure of structure.This camera head is fixed to by elastic components such as sponge 210 on the inwall of housing 200 of portable phone in cover member 120.Camera head makes object light enter lens group 110 by the peristome of the housing 200 of portable phone and the peristome 131 of lens bracket 130, by optical filter 180, thus imaging on the shooting face of the imaging apparatus 160 that is installed on substrate 170.
This camera head has: the bar member 142 of the ring-type of lens barrel 143 that keep the lens bracket 130 of lens group 110, is screwed together with lens bracket 130 and imaging apparatus 160 sides that are configured in lens barrel 143 etc.
Lens barrel 143 and bar member 142 pass through level portion butt slidably, are formed with cam surface on its bearing surface mutually.And,, be configured to concentric volute spring 190 with lens barrel 143 lens barrel 143 pushed towards bar member 142 in order to suppress rocking and make the driving of cam stable between lens barrel 143 and the bar member 142.
Apply camming action to lens barrel 143 by making 142 rotations of bar member on optical axis direction, lens barrel 143 moves on optical axis direction with lens bracket 130 and lens group 110.By camera lens moving on optical direction, change the position of camera lens with respect to imaging apparatus 160, carry out the switching that close shot is taken and taken usually.In addition, bar member 142 and sealing frame 150 be butt slidably, and volute spring 190 is configured between lens barrel 143 and the cover member 120.
Patent document 1: TOHKEMY 2006-113168 communique
But for above-mentioned camera head, if be installed in portable phone etc., there are the following problems, that is, dust enters portable phone inside from the movable part of portable phone, and these dusts pass between volute spring 190 and are attached on the lens group 110.Therefore, because the long-term use of portable phone, the camera lens that can produce camera head has shade and the problem that can not take distinct image.
In addition, even patent document 1 disclosed camera head equally also may be owing to can shake changer lever, the dust that enters from the otch that is formed on the erecting bed passes between volute spring, through the gap on cover member and adjustment member top, thereby be attached on the camera lens.And,, therefore be unfavorable for the slimming of camera head because volute spring 190 makes wire-like members become spiral fashion and keeps elastic force, need space to a certain degree on thickness direction (optical axis direction).
Summary of the invention
Therefore, the objective of the invention is to, the camera head of the distinct image quality of a kind of slim energy long term maintenance is provided.
In order to achieve the above object, the invention provides a kind of camera head, have: substrate, it installs imaging apparatus; Support, it is fixed on the described substrate in the mode of surrounding described imaging apparatus; Retaining member, it can be arranged on the described support on the optical axis direction movably, and has the camera lens of imaging on described imaging apparatus; Fixed component, its on the opposition side of described support one side of disposing of described retaining member, dispose relative with described retaining member; And elastic component, it is configured between described retaining member and the described fixed component, and described retaining member is pushed towards described bracket side, and described elastic component forms the shape of blocking the gap between described retaining member and the described fixed component.
By this structure, can prevent dust between retaining member and fixed component the gap or elastic component in by entering inside.Therefore, can prevent dust, even long-term use also can be kept distinct image quality attached on the camera lens.
In addition, in said structure, can adopt described elastic component to form the structure of U word shape towards the mode of external opening with cross sectional shape radially.
Become U word shape by the cross section that makes elastic component, guarantee to allow the elastic force of the degree that retaining member moves to optical axis direction, and guarantee that the contact area between elastic component and retaining member and the fixed component is bigger, thereby can provide camera head with outstanding dustproof effect.
In addition, in said structure, can adopt described elastic component is rubber structure.
By this structure, can make camera head at low cost.And, can realize the slimming of camera head.
In addition, the electronic equipment that above-described camera head is installed can be taken distinct image quality chronically.
According to the present invention, can provide the camera head of the distinct image quality of a kind of slim energy long term maintenance.
Description of drawings
Fig. 1 is the front view of camera head 1.
Fig. 2 is the A-A line cut-open view of Fig. 1.
Fig. 3 (a), 3 (b) are the figure that the structure of elastic component is shown.
Fig. 4 (a), 4 (b), 4 (c), 4 (d) be the cut-open view of the elastic component that adopts in the present embodiment and adopt beyond the present embodiment have the elastic component of different cross section shape the time key diagram.
Fig. 5 be illustrated in the portable phone adopt in the past have the camera head of the mechanism that is used to drive camera lens the time the figure of structure.
Embodiment
Below, with reference to description of drawings an embodiment of the invention.Fig. 1 is the vertical view of camera head 1, and Fig. 2 is the A-A line cut-open view of Fig. 1.
Camera head 1 has: lens bracket (retaining member) 30 and ring element (retaining member) 40, and its lens group 10 that will be made of 2 camera lenses of the 1st camera lens 11 and the 2nd camera lens 12 is held in freedom of movement on optical axis direction; Sealing frame (support) 50 is by applying the camming action of optical axis direction with the relative rotation of ring element 40 to ring element 40; Cover member (fixed component) 20, its on the opposition side that disposes sealing frame 50 1 sides with ring element 40 relative configurations; And elastic component 90, it is configured between ring element 40 and the cover member 20, ring element 40 is pushed towards sealing frame 50 sides, and driven lens group 10; Or the like.
Cover member 20 and pin described later (peen) portion 53 are chimeric and be fixed on the sealing frame 50, and wherein, described pin portion 53 extends at optical axis direction from sealing frame 50.And, the end of cover member 20 butt elastic component 90 on the surface of its imaging apparatus 60 sides.
Lens bracket 30 forms cylindric and maintains lens group 10 in the inboard.Imaging apparatus 60 sides at this camera lens 2 dispose optical filter 5.Lens bracket 30 forms peristome 31 at object side, object light imaging on the shooting face of imaging apparatus 60 by peristome 31.
The interior week of the periphery of this lens bracket 30 and ring element 40 is screwed together by screwing togather partial L.
Ring element 40 forms cylindric, and Zhou Shangyu lens bracket 30 screws togather within it.And, screwing togather partial L and scribble bonding agent, lens bracket 30 is fixed on the ring element 40.
And on the periphery of ring element 40, bar 42 forms outstanding diametrically.By dwang 42, ring element 40 rotates in a predetermined direction.And, ring element 40 slidably rotatably with sealing frame 50 butts.On ring element 40 and imaging apparatus sides sealing frame 50 butts, be formed with cam surface highly different on optical axis direction 41, and, sealing frame 50 with the subject side ring element butt on, be formed with servo-actuated face 51 with cam surface 41 butts.
Therefore, by dwang 42 in a predetermined direction, apply camming action by cam surface 41 and servo-actuated face 51 to ring element 40, ring element 40 moves on optical axis direction.And, on ring element 40, be fixed with lens bracket 30.Therefore, ring element 40 is held in freedom of movement on optical axis direction with lens group 10.
The bottom surface of sealing frame 50 utilizes cementing agent to be fixed to substrate 70, is formed with the peristome 52 that allows object light to pass through at the central portion that seals frame 50.
Charge-coupled image sensor), CMOS (ComplementaryMetal Oxide Semiconductor: image output transducer such as imageing sensor complementary metal oxide semiconductor (CMOS)) imaging apparatus 60 for example adopts CCD (Change Couple Device:.Imaging apparatus 60 is connected on the Wiring pattern of substrate 70 by for example upside-down mounting welding (flipchip bonding).
Optical filter 80 adopts for example by ultrared IR-cut filter.
Fig. 3 (a), 3 (b) are the figure that the structure of elastic component 90 is shown.Fig. 3 (a) is the front view of elastic component 90, and Fig. 3 (b) is the side view of elastic component 90.
Elastic component 90 forms gapless ring-type, makes to block as the ring element 40 of retaining member with as the gap between the cover member 20 of fixed component, and surround lens bracket 30 as retaining member.And elastic component 90 has predetermined thickness and forms the cross section and is U word shape.And, for do not make dust etc. enter from the outer circumferential side of elastic component 90 in all sides, elastic component 90 forms gapless structure.And elastic component 90 utilizes rubber to form.
As depicted in figs. 1 and 2, elastic component 90 is configured to become concentric shape with lens bracket 30 with sealing frame 50 grades, and one end thereof is fixed on the imaging apparatus side of cover member 20, the subject side butt of another end and ring element 40.And elastic component 90 blocks the gap between ring element 40 and the cover member 20, forms the ring-type of surrounding lens bracket 30.
By this structure, the elastic component 90 that is used to drive camera lens can prevent that dust from entering the inside of camera head 1 from the gap between ring element 40 and the cover member 20.Therefore, can prevent to adhere to dust on the lens group 10, even long-term use also can be kept distinct image quality.
In addition, because elastic component 90 is a rubber, so can make camera head 1 at low cost.In addition, under helical spring situation, have elastic force in order to make wire-like members become spiral fashion, space to a certain degree need be arranged on thickness direction (optical axis direction), and under the situation of rubber, unlike volute spring, on thickness direction, need the space.Therefore, if elastic component 90 adopts rubber, then can make camera head 1 slimming.
Fig. 4 (a), 4 (b), 4 (c), 4 (d) be the cut-open view of the elastic component 90 that adopts in the present embodiment and adopt beyond the present embodiment have the elastic component of different cross section shape the time key diagram.
Shown in Fig. 4 (a), elastic component 90 forms U word shape with radially cross sectional shape towards the mode of external opening.
Fig. 4 (b) is the key diagram when adopting the elastic component 90a with the cross sectional shape that is different from present embodiment.
Therefore shown in Fig. 4 (b), if the radial thickness of elastic component 90a is thin excessively, then the pressure of elastic component 90a is little, may break down in the moving of optical axis direction at ring element 40.But, less and under the situation not pressure of elasticity of demand member, also can adopt the such elastic component 90a of Fig. 4 (b) at lens bracket etc.
For example, shown in Fig. 4 (c),, can increase the pressure of elastic component 90b by increasing the radial thickness of elastic component 90b.But so, elastic component 90b diminishes to the expansion and contraction of optical axis direction, and is excessive to the right power of optical axis direction mobile phase with ring element 40, is used to make the driving force of ring element 40 rotations to increase.But, during by the needs strong pressure, also can adopt the such elastic component of Fig. 4 (c) owing to something.
Shown in Fig. 4 (a), become U word shape by the cross section that makes elastic component 90, guarantee to allow the elastic force of the degree that ring element 40 moves to optical axis direction, and guarantee that the contact area between elastic component 90 and ring element 40 and the cover member 20 becomes big, thereby can prevent to produce the gap between elastic component 90 and ring element 40 and the cover member 20, a kind of camera head with outstanding dustproof effect can be provided.
In addition, Fig. 4 (d) is mode that elastic component 90c opens towards inside with the cross sectional shape radially enlarged drawing when forming U word shape.Forming in the mode of opening towards inside under the situation of U word shape, between elastic component 90c and ring element 40 and cover member 20, produce the gap easily, if the dust that enters from the outside etc. is deposited in this gap, then may become the obstacle that ring element 40 smoothly moves to optical axis direction.
Therefore, shown in Fig. 4 (a), more can prevent dust accretions when forming U word shape between elastic component 90 and ring element 40 and cover member 20, can guarantee that ring element 40 moves to the level and smooth of optical axis direction in mode towards external opening.
A preferred embodiment of the present invention more than has been described, but has been not limited to specific implementations of the present invention, in the purport scope of the present invention of claim record, can carry out various distortion and change.
For example, be installed on portable phone etc., a kind of portable phone that can take harsh image for a long time can be provided by the camera head that will illustrate in the foregoing description.In addition, can also be installed on the portable phone electronic equipment in addition.In addition, retaining member is made of the lens bracket 30 and the ring element 40 that keep camera lens, but is not limited thereto, and shown in the structure of Fig. 5, ring element 40 can also be divided into bar member that has bar and 2 members that keep the support retaining member of lens bracket.In this case, the cam that drives camera lens can be arranged between bar member and the support retaining member, perhaps is arranged between bar member and the fixed component.

Claims (4)

1. a camera head is characterized in that, this camera head has:
Substrate, it installs imaging apparatus;
Support, it is fixed on the described substrate in the mode of surrounding described imaging apparatus;
Retaining member, it can be arranged on the described support on the optical axis direction movably, and has the camera lens of imaging on described imaging apparatus;
Fixed component, its on the opposition side of described support one side of disposing of described retaining member, dispose relative with described retaining member; And
Elastic component, it is configured between described retaining member and the described fixed component, and described retaining member is pushed towards described bracket side,
Described elastic component forms the shape of blocking the gap between described retaining member and the described fixed component.
2. camera head according to claim 1 is characterized in that,
Described elastic component forms U word shape with radially cross sectional shape towards the mode of external opening.
3. camera head according to claim 1 and 2 is characterized in that,
Described elastic component is a rubber.
4. an electronic equipment is characterized in that, any described camera head of claim 1～3 is installed.
CNA2007800261739A 2006-07-11 2007-06-28 Imaging apparatus Pending CN101490592A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP190253/2006 2006-07-11
JP2006190253A JP2008020523A (en) 2006-07-11 2006-07-11 Imaging apparatus

Publications (1)

Publication Number Publication Date
CN101490592A true CN101490592A (en) 2009-07-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2007800261739A Pending CN101490592A (en) 2006-07-11 2007-06-28 Imaging apparatus

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JP (1) JP2008020523A (en)
KR (1) KR20080110682A (en)
CN (1) CN101490592A (en)
WO (1) WO2008007558A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103365037A (en) * 2012-04-06 2013-10-23 宏达国际电子股份有限公司 Camera module and portable device
CN109938651A (en) * 2019-01-15 2019-06-28 尚科宁家(中国)科技有限公司 A kind of sweeping robot sensor module and the sweeping robot based on the sensor module

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100984338B1 (en) 2008-11-25 2010-09-30 주식회사 하이소닉 Image photographing module having spacer
US9307128B2 (en) * 2012-06-26 2016-04-05 Alex Ning Lens mount
KR102255446B1 (en) * 2014-08-04 2021-05-24 엘지이노텍 주식회사 Camera module for vehicle
EP3168682B1 (en) 2015-11-16 2017-12-27 Axis AB A lens arrangement and a monitoring camera comprising the lens arrangement

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005195678A (en) * 2003-12-26 2005-07-21 Seiko Precision Inc Camera module
JP4504097B2 (en) * 2004-05-26 2010-07-14 オリンパス株式会社 Camera lens frame device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103365037A (en) * 2012-04-06 2013-10-23 宏达国际电子股份有限公司 Camera module and portable device
CN103365037B (en) * 2012-04-06 2016-01-20 宏达国际电子股份有限公司 Camera module and portable apparatus
CN109938651A (en) * 2019-01-15 2019-06-28 尚科宁家(中国)科技有限公司 A kind of sweeping robot sensor module and the sweeping robot based on the sensor module

Also Published As

Publication number Publication date
WO2008007558A1 (en) 2008-01-17
JP2008020523A (en) 2008-01-31
KR20080110682A (en) 2008-12-18

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Open date: 20090722