KR101027838B1 - Apparatus for opening and closing of camera lens used mobile phone - Google Patents

Apparatus for opening and closing of camera lens used mobile phone Download PDF

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Publication number
KR101027838B1
KR101027838B1 KR1020090014603A KR20090014603A KR101027838B1 KR 101027838 B1 KR101027838 B1 KR 101027838B1 KR 1020090014603 A KR1020090014603 A KR 1020090014603A KR 20090014603 A KR20090014603 A KR 20090014603A KR 101027838 B1 KR101027838 B1 KR 101027838B1
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KR
South Korea
Prior art keywords
slider
housing
opening
camera lens
mobile communication
Prior art date
Application number
KR1020090014603A
Other languages
Korean (ko)
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KR20100095674A (en
Inventor
강병길
김인수
Original Assignee
자화전자(주)
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Application filed by 자화전자(주) filed Critical 자화전자(주)
Priority to KR1020090014603A priority Critical patent/KR101027838B1/en
Publication of KR20100095674A publication Critical patent/KR20100095674A/en
Application granted granted Critical
Publication of KR101027838B1 publication Critical patent/KR101027838B1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G01J1/044—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using shutters
    • 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
    • G03B11/00—Filters or other obturators specially adapted for photographic purposes
    • G03B11/04—Hoods or caps for eliminating unwanted light from lenses, viewfinders or focusing aids
    • G03B11/043—Protective lens closures or lens caps built into cameras

Abstract

The present invention relates to a camera lens opening and closing device mounted on a mobile communication terminal, such as a camera phone, and more particularly, the lens surface by opening and closing the camera lens by translating the slider by the interaction of the electromagnetic force and rotating the blade associated with it It relates to a camera lens opening and closing device for a mobile communication terminal to prevent the adhesion of foreign substances.

Accordingly, the present invention provides a housing having an opening formed at the center thereof so that light can be incident thereon, a slider installed at the upper portion of the housing to allow translational movement, and a blade that opens and closes the opening as it rotates in conjunction with the translational movement of the slider. And, and provides a camera lens opening and closing device for a mobile communication terminal comprising a drive unit provided to translate the slider.

Camera, lens, opening and closing, cap, translation

Description

Camera lens opening and closing device for mobile communication terminal {APPARATUS FOR OPENING AND CLOSING OF CAMERA LENS USED MOBILE PHONE}

The present invention relates to a camera lens opening and closing device mounted on a mobile communication terminal, such as a camera phone, and more particularly, the lens surface by opening and closing the camera lens by translating the slider by the interaction of the electromagnetic force and rotating the blade associated with it It relates to a camera lens opening and closing device for a mobile communication terminal to prevent the adhesion of foreign substances.

Recently, with the development of digital camera manufacturing technology, a miniaturized and lightweight camera lens assembly has emerged. Accordingly, the camera can be mounted in a mobile communication terminal.

In the early days, cameras mounted on mobile communication terminals had significantly lower performance than general digital cameras. For example, when the performance of a general digital camera is mainstream of 4 million pixels, the camera mounted on the mobile communication terminal is 300,000 pixels, which is not very effective.

However, with the recent rapid development of digital camera manufacturing technology, the number of digital cameras mounted on mobile communication terminals has increased dramatically, resulting in clearer images.

However, unlike a general digital camera, a mobile communication terminal is not stored in a case, but is stored in a pants bag or a portable bag that is easy to carry, and thus foreign matters such as dust adhere to the lens surface and come into contact with other materials. This causes scratches on the surface of the lens.

In order to improve this problem, a mobile communication terminal equipped with an opening and closing device for protecting a lens has been released. However, as disclosed in Korean Patent Application Publication No. 10-2005-0075241, a component such as a hand roll is mounted and mechanically driven by an external force. Most of the opening and closing is performed.

In addition, such an opening and closing device is inconvenient to open and close by human power whenever the camera shooting mode is switched.

Therefore, the development of a lens protection switchgear for opening and closing the blade by the electric force is in progress, but there is a limit to miniaturization due to space constraints.

In addition, there is a problem that foreign matter penetrates into the gap because the blade is not completely closed when the blade is closed, the foreign matter is attached to the surface of the lens.

In order to solve the above problems, an object of the present invention is to move the camera to protect the camera lens by mechanically opening and closing the blade with the force of electrical energy, and to prevent the adhesion of foreign matter to the surface of the lens Provided is a camera lens opening and closing device for a communication terminal.

Another object of the present invention is to provide a camera lens opening and closing device for a mobile communication terminal that can be easily applied to a mobile communication terminal is more compact because the mechanical configuration is simple.

Another object of the present invention is to install a guide in the housing to facilitate the translational movement of the slider to prevent the deformation of the slider to prevent the gap between the blades when the blade is closed in advance for the mobile communication terminal It provides a camera lens opening and closing device.

Another object of the present invention is to assemble the coil, yoke, magnet and printed circuit board in the drive unit cover to manufacture the assembly as a single part so that it can be determined in advance whether there is a failure of the driving characteristics in advance to screen the defective products It provides a camera lens opening and closing device for a mobile communication terminal that can minimize the loss cost.

It is still another object of the present invention to provide a camera lens opening and closing device for a mobile communication terminal which can prevent a foreign matter from being broken due to breakage of a contact part of a blade by allowing a stop wave to be installed on a line of an inner slider moving direction of a housing. .

The present invention provides a housing having an opening formed in the center to allow light to be incident thereon, a slider installed to allow translational movement on the upper portion of the housing, a blade for opening and closing the opening as the drive rotates in conjunction with the translational movement of the slider, It provides a camera lens opening and closing device for a mobile communication terminal including a drive unit provided to translate the slider.

In addition, in the present invention, the drive unit is accommodated inside the drive unit housing having a rotation axis formed in the vertical direction, the drive unit is formed with a drive pin on one side and rotatable on the rotation axis of the drive unit housing, and a coil is wound around It includes a printed circuit board for connecting a yoke and an external power source for generating an electromagnetic force to interact with the magnet, the drive unit is preferably modularized to enable independent driving.

In addition, the drive unit housing is preferably a groove formed in the edge portion, the lower portion of the housing is preferably formed with a protrusion to be fitted into the groove of the drive unit housing.

In addition, the guide is preferably formed in the inner or outer side of the slider in parallel with the direction of travel of the slider.

In addition, the housing is formed with a through hole so that the drive pin of the magnet can penetrate, the slider is formed in the arc-shaped drive hole into which the drive pin is inserted so that the translation drive as the drive pin of the magnet rotates, The slider is formed through a linkage hole, the blade is a linkage shaft is formed at a position corresponding to the linkage hole so as to rotate the translational movement of the slider, the blade is rotated spaced apart from the linkage shaft A center hole is formed, and the housing preferably has a rotation center axis formed at a position corresponding to the rotation center hole so as to be the rotation center of the blade.

In addition, it is preferable that a stop wave is provided on the inner slider traveling direction line of the housing.

The camera lens opening and closing device for a mobile communication terminal according to the present invention as described above has the effect of protecting the camera lens by mechanically opening and closing the blade with the force of electrical energy, and prevent the adhesion of foreign matter to the surface of the lens. .

In addition, the camera lens opening and closing device for a mobile communication terminal according to the present invention has an effect that can be easily applied to the mobile communication terminal is more compact since the mechanical configuration is simple.

In addition, the camera lens opening and closing device for a mobile communication terminal according to the present invention by installing a guide in the housing to facilitate the translational movement of the slider to prevent the deformation of the slider to prevent the gap between the blades in advance when the blade is closed. Can be.

In addition, the camera lens opening and closing device for a mobile communication terminal according to the present invention by assembling the coil and yoke, the magnet and the printed circuit board in the drive cover to make the assembly as a single part so that it can be determined in advance whether there is a poor driving characteristics Early screening of defective products minimizes process loss costs

In addition, the camera lens opening and closing device for a mobile communication terminal according to the present invention can prevent the generation of foreign matters by damaging the contact portion of the blade by installing a stop wave on the line of the inner slider moving direction of the housing.

Hereinafter, a description will be given of a preferred embodiment of the present invention with reference to the accompanying drawings.

1 is an exploded perspective view showing a camera lens opening and closing device according to an embodiment of the present invention, Figure 2 is an external perspective view showing a camera lens opening and closing device according to an embodiment of the present invention, Figure 3 is an embodiment of the present invention 8 is an external perspective view illustrating a camera lens opening and closing device according to another embodiment, and FIG. 8 is a perspective view separately showing a housing and a driving unit housing of the camera lens opening and closing device according to an embodiment of the present invention.

Camera lens opening and closing device according to an embodiment of the present invention is a housing 10, the opening is formed in the center, the slider 20 is installed to enable the translational movement on the upper portion of the housing 10, the translation of the slider 20 It includes a plurality of blades (30, 40) for opening and closing the opening (9) of the housing 10 by rotating in conjunction with the movement, and the drive unit 150 provided to translate the slider 20.

In addition, the housing cover 60 is formed on the upper portion of the housing 10 to accommodate the blades 30, 40 and the slider 20 together with the housing 10, and the housing cover 60 and the blades 30, The intermediate plate 50 is provided between the 40 to secure the rotation space of the blades (30, 40).

Here, the incident light passes through the center of the housing 10, the intermediate plate 50, and the housing cover 60 so as to reach the image sensor (not shown).

The center of rotation shaft (11a, 11b) is formed in the housing 10 upward, the through-hole 12 is formed spaced apart from the center of rotation shaft (11a, 11b).

In addition, the housing 10 is provided with a guide 18 parallel to the advancing direction in which the slider 20 translates, on both sides of the opening 9 so that the slider 20 moves along the guide 18. The guide 18 improves the reliability of the product by preventing the vertical movement and the left and right distortion phenomenon during the translational movement.

In addition, the housing 10 is provided with stoppers 16a and 16b, respectively, on both inner sides of the slider 20 in the moving direction of the translational movement to limit the moving range of the slider 20. The stoppers 16a and 16b may prevent the foreign substances from breaking due to the broken ends of the blades 30 and 40 generated due to the collision of the blades 30 and 40 during the closing operation of the blades 30 and 40. .

Slider 20 is a plate formed on both sides in parallel to enable the translational movement is open to allow light to pass through the inside.

In addition, the slider 20 has linkage holes 21a and 21b formed at positions corresponding to the linking shafts 32 and 42 of the blades 30 and 40 to be described later, and the driving pin 71 of the magnet 70 to be described later. An arc-shaped drive hole 22 is formed to be inserted therein.

Therefore, as the drive pin 71 rotates, the slider 20 translates and the linkage shaft 32 and 42, which the translational movement of the slider 20 is fitted into the linkage holes 21a and 21b, moves, and the linkage shaft ( As the 32 and 42 move, the blades 30 and 40 integrally formed thereon are rotated.

The blades 30 and 40 have interlocking shafts 32 and 42 formed at positions corresponding to the interlocking holes 21a and 21b of the slider 20, and the center of rotation shafts 11a and 11b of the housing 10 are formed. Rotation center holes 31 and 41 are formed at positions corresponding to the?

Therefore, when the slider 20 translates, the blades 30 and 40 integrally formed with the interlocking shafts 32 and 42 are rotated about the rotational center axes 11a and 11b to open the housing 10. (9) will be opened and closed.

The intermediate plate 50 is mounted on the upper portion of the housing 10 to form a space for rotation of the blades 30 and 40, as well as to prevent foreign substances from penetrating into the inside.

The driving unit 150 is accommodated in the driving unit housing 110. In addition, the drive unit housing 110 has a central axis 111 formed therein.

The driving unit 150 is a magnet 70 that is inserted into the central axis 111 of the driving unit housing 110 and rotates, and a coil 90 is wound around the yoke for generating an electromagnetic force to interact with the magnet 70. And 80.

In addition, a coil 90, a yoke 80, a magnet 70, and a printed circuit board 100 form an assembly in the driving unit housing 110, and supply power to the printed circuit board in an assembled state. It can reduce the process loss cost by determining whether the assembly is defective or not in advance.

In addition, the driving unit housing 110 has a fixing groove 115 is formed so that the fixing projection 15 of the lower portion of the housing 10 can be fitted.

In addition, if necessary, the ends of the fixing protrusions 15a and 15b may be fixed by heat fusion or fixed using epoxy to prevent breakage when the product falls.

Hereinafter will be described the operation of the camera lens opening and closing apparatus according to the embodiment of the present invention.

4 is a main perspective view showing an open state of the camera lens opening and closing apparatus according to an embodiment of the present invention, Figure 5 is a main part showing an open state of the camera lens opening and closing apparatus according to an embodiment of the present invention from another angle 6 is a perspective view showing a closed state of the camera lens opening and closing apparatus according to an embodiment of the present invention, Figure 7 is another angle of the closed state of the camera lens opening and closing apparatus according to an embodiment of the present invention It is a yabu perspective view shown in.

First, when power is applied to the coil 90 from the outside, electric force is generated in the yoke 80 passing through the coil inner diameter, and interacts with the magnetic force generated in the magnet 70 magnetized in the circumferential direction. According to the magnet 70 is driven forward or reverse rotation.

At this time, the driving pin 71 integrally formed in the magnet 70 passes through the through-hole 12 formed in the housing 10 and is inserted into the drive-hole 22 of the slider 20. When the magnet 70 rotates in the forward or reverse direction according to the polarity of the power source, the slider 20 linked to the driving pin 71 translates along the guide 18.

In addition, the interlocking shafts 32 and 42 of the blades 30 and 40 are inserted into the interlocking holes 21a and 21b of the slider 20, respectively, and the rotational center shafts formed in the housing 10 in accordance with the translational drive of the slider 20. The blades 30 and 40 rotate about the 11a and 11b, and the opening 9 is opened and closed.

1 is an exploded perspective view showing a camera lens opening and closing apparatus according to an embodiment of the present invention.

Figure 2 is an external perspective view showing a camera lens opening and closing apparatus according to an embodiment of the present invention.

Figure 3 is an external perspective view showing the camera lens opening and closing apparatus according to an embodiment of the present invention from another direction.

4 is a main perspective view showing an open state of the camera lens opening and closing apparatus according to an embodiment of the present invention.

5 is a main portion perspective view showing the open state of the camera lens opening and closing apparatus according to an embodiment of the present invention from a different angle.

6 is a main perspective view showing a closed state of the camera lens opening and closing apparatus according to an embodiment of the present invention.

7 is a perspective view illustrating a closed state of the camera lens opening and closing apparatus according to an embodiment of the present invention at a different angle.

8 is a perspective view separately showing a housing and a driving unit housing of a camera lens opening and closing apparatus according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

10 housing 20 slider

30, 40: blade 50: middle plate

60: housing cover 70: magnet

80: yoke 90: coil

Claims (6)

A housing having an opening formed at a center thereof so that light can be incident thereon, and a guide extending parallel to both sides of the opening; A slider installed at the top of the housing to translate along the guide; A blade linked to the translational movement of the slider to open and close the opening; And a driving unit for translating the slider. The method of claim 1, The drive unit is accommodated in the drive unit housing having a rotation axis formed in the vertical direction, The driving unit has a driving pin formed at one side and rotatably mounted on a rotating shaft of the driving unit housing, and a coil wound around the printed circuit for connecting a yoke and an external power source to generate an electromagnetic force to interact with the magnet. Including a substrate, The driving unit is a camera lens opening and closing device for mobile communication terminal, characterized in that the modularized to enable independent driving. The method of claim 2, The driving unit housing has a groove formed in the edge portion, the camera lens opening and closing device for a mobile communication terminal, characterized in that the projection is formed in the lower portion of the housing to be fitted into the groove of the driving unit housing.       The method of claim 1,       The guide is a camera lens opening and closing device for a mobile communication terminal, characterized in that formed in the inner or outer side of the slider in parallel with the progress direction of the slider. The method of claim 2,        The housing has a through hole formed therein so that the driving pin of the magnet can be penetrated, the slider is formed with an arc-shaped driving hole into which the driving pin is inserted, the slider is formed with an interlocking hole therethrough, and the blade is the A linkage shaft is formed at a position corresponding to the linkage hole to translate the slider according to the translational movement. The blade is spaced apart from the linkage shaft to form a center hole of rotation, and the housing has a center of rotation of the blade. The camera lens opening and closing device for a mobile communication terminal, characterized in that the rotation center axis is formed in a position corresponding to the rotation center hole. The method of claim 5, A camera lens opening and closing device for a mobile communication terminal, characterized in that it comprises a stop wave provided on the line of the inner slider moving direction of the housing.
KR1020090014603A 2009-02-23 2009-02-23 Apparatus for opening and closing of camera lens used mobile phone KR101027838B1 (en)

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KR1020090014603A KR101027838B1 (en) 2009-02-23 2009-02-23 Apparatus for opening and closing of camera lens used mobile phone

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KR1020090014603A KR101027838B1 (en) 2009-02-23 2009-02-23 Apparatus for opening and closing of camera lens used mobile phone

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KR101027838B1 true KR101027838B1 (en) 2011-04-07

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050075241A (en) * 2004-01-16 2005-07-20 삼성전자주식회사 Camera door opening and shutting apparatus for mobile phone
KR20060102671A (en) * 2005-03-24 2006-09-28 주식회사 팬택 Apparatus for closing and opening camera door in mobile
KR20070091759A (en) * 2006-03-07 2007-09-12 파워옵틱스 주식회사 Lens barrier opening/closing apparatus of camera for mobile instrument, camera module for mobile instrument, and mobile instrument comprising the camera module
KR100927849B1 (en) * 2009-01-08 2009-11-23 동인하이텍주식회사 Actuator for lens door opening and closing device of camera

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050075241A (en) * 2004-01-16 2005-07-20 삼성전자주식회사 Camera door opening and shutting apparatus for mobile phone
KR20060102671A (en) * 2005-03-24 2006-09-28 주식회사 팬택 Apparatus for closing and opening camera door in mobile
KR20070091759A (en) * 2006-03-07 2007-09-12 파워옵틱스 주식회사 Lens barrier opening/closing apparatus of camera for mobile instrument, camera module for mobile instrument, and mobile instrument comprising the camera module
KR100927849B1 (en) * 2009-01-08 2009-11-23 동인하이텍주식회사 Actuator for lens door opening and closing device of camera

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