JP2006011127A - Lens cover - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lens cover capable of repeating adhesion/peeling a plurality of times and preventing the generation of deterioration due to chemical changes in plasticity or the like which may be generated by the adhesion of adhesives to a non-sucking object which is an object to be stuck. <P>SOLUTION: The lens cover is provided with a sucker part 31 having a micro sucker layer 41 forming fine recessed parts on the surface so as to be sucked to an objective lens and a cover part 32 which can be attachably/detachably stuck to one surface of the sucker part 31. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a lens cover for protecting a camera lens such as a mobile phone with a camera function.

In recent years, mobile phones and personal digital assistants equipped with a digital camera function (hereinafter abbreviated as a camera function) have been supplied. For example, a mobile phone with a camera function can easily shoot a subject by pointing a camera lens toward the subject and pressing a shutter button. At this time, the image of the subject is obtained as a still image or a moving image.
In order to protect such a camera lens from scratches and dirt, a lens cover has been proposed that has adhesiveness on one side and forms a protective layer on the camera lens by sticking to the camera lens in a peelable manner. .

  However, the following problems remain in the conventional lens cover. That is, since the conventional lens cover is stuck to the lens cover by its adhesive force, the adhesive adheres to the camera lens even if it is a minute amount when peeled off. There is a problem that the camera lens is altered by a chemical change such as plasticity caused by the adhered adhesive, and the optical system of the camera lens is changed.

  The present invention has been made in view of the above-described problems, and can be repeatedly pasted and peeled multiple times, and can be subjected to chemicals such as plasticity caused by the adhesive adhering to the non-adsorbed material to be pasted. An object of the present invention is to provide a lens cover that does not deteriorate due to changes.

  The present invention employs the following configuration in order to solve the above problems. That is, the lens cover of the present invention includes a suction cup portion having a micro suction cup layer that is formed with a minute concave portion on the surface and adsorbs to a non-adsorbed substance, and a cover portion formed on one surface of the suction cup portion. It is characterized by.

According to the lens cover according to the present invention, the suction part is pressed against the camera lens which is a non-adsorbed material, whereby the inside of the concave part of the micro suction layer becomes negative pressure. Thereby, this recessed part functions as a suction cup and is attracted to the camera lens. And since the micro sucker layer is detachably attached to the camera lens without using an adhesive such as glue, the adhesive to the camera lens when the sucker part is peeled off from the camera lens. Will not adhere.
Therefore, the camera lens is prevented from being deteriorated by a chemical change such as plasticity, and the optical system of the camera lens is stabilized.

In the lens cover according to the present invention, it is preferable that the suction cup portion and the cover layer are detachably bonded.
According to the lens cover according to the present invention, when the sucker portion and the cover portion are detachably bonded, the suction force due to the concave portion is reduced due to dirt attached to the micro sucker layer. The suction force between the micro suction layer and the non-adsorbed material is maintained by peeling the cover part and bonding the new suction part and the cover part. Since the suction force with the non-adsorbed material is maintained by replacing the suction cup in this way, there is no need to replace the cover, and it is more economical than replacing the entire lens cover with the cover. .

  According to the lens cover of the present invention, by pressing the suction cup portion against the non-adsorbed camera lens, the concave portion functions as a suction cup and sucks the camera lens. And since the micro sucker layer is detachably attached to the camera lens without using an adhesive such as glue, the adhesive to the camera lens when the sucker part is peeled off from the camera lens. Will not adhere. Therefore, the camera lens is prevented from being deteriorated by a chemical change such as plasticity, and the optical system of the camera lens is stabilized.

Hereinafter, an embodiment of a lens cover according to the present invention will be described with reference to FIGS.
The lens cover 1 according to the present embodiment is a lens cover used for an objective lens 3 of a mobile phone with a camera function (hereinafter abbreviated as a mobile phone) 2, for example.
As shown in FIG. 1, the mobile phone 2 includes a first housing 11 and a second housing 13 that can be folded via the first housing 11 and the hinge mechanism 12.

The first housing 11 is provided with an operation key unit 16 including a first shutter key 15 made of numeric keys and a microphone 17 for inputting a transmission voice on the inner surface side when folded. .
Further, the first housing 11 is provided with an objective lens 3 used for photographing and a light 18 for irradiating illumination light to a photographing range by the objective lens 3 on the outer surface side when folded. A strap attachment hole 11A to which a string 54 such as a hand strap can be attached is formed.

The objective lens 3 is a member constituting an objective optical system of the built-in camera, and is configured to form an image from a subject on an image sensor (not shown) provided in the first housing 11. Yes. A lens cover 1 is detachably attached to the surface of the objective lens 3 as shown in FIG.
The light 18 is composed of, for example, an LED (light emitting diode), and is used as illumination light when photographing with the built-in camera, and is configured to notify an incoming call or a charging state.

  Further, a second shutter key 19 having the same function as the first shutter key 15 is provided on the side surface of the first housing 11, and an antenna (not shown) is provided inside the first housing 11. Built in.

The second housing 13 is provided with a first display 21 for displaying characters and images and a speaker 22 for outputting a received voice on the inner surface side when folded.
In addition, the second casing 13 has a second display 23 that displays characters and images on the outer surface side when folded, and a sounder 24 that outputs a ringtone and a warning sound, similarly to the first display 21. I have.

As shown in FIGS. 3 and 4, the lens cover 1 includes a disk-shaped suction cup 31 having a slightly smaller diameter than the objective lens 3 and a cover 32 that is detachably attached to the suction cup 31. Has been.
The sucker portion 31 has flexibility, and includes a micro sucker layer 41, a first support layer 42 formed on one surface of the micro sucker layer 41, and a second support formed on one surface of the first support layer 42. A support layer 43 and an adhesive layer 44 formed on one surface of the second support layer 43 to which the cover portion 32 is detachably attached are provided.

The micro sucker layer 41 is formed of a resin material, and as shown in FIG. 5, innumerable fine recesses 45 are formed on the surface thereof, and the recesses 45 function as suckers. Further, on the other surface of the micro sucker layer 41, a sucker release paper 46 for protecting the micro adsorbing layer 41 is attached.
The micro sucker layer 41 has a size of 3 × 10 cm, a temperature of 20 ° C., a pulling speed of 300 mm / min, and a holding force of 8900 g / 45 cm ² under a measuring condition of 180 ° pull and 180 ° In the peel measurement conditions, the polypropylene plate has an adsorption force of 20 g / 30 mm.
Further, the suction cup peeling paper 46 is formed with a slit 46A so that it can be easily peeled off from the micro suction cup layer 41.

The first support layer 42 is made of, for example, PET (polyethylene terephthalate) having a thickness of 50 μm, and is adhered to one surface of the micro sucker layer 41 by dry bonding.
The second support layer 43 is made of, for example, PET having a thickness of 125 μm, and is adhered to one surface of the first support layer 42. Here, by using PET as the second support layer 43, the printing suitability when printing by offset printing on the surface of the second support layer 42 is improved.
The first and second support layers 42 and 43 are each laminated one by one, but the thickness of the first support layer 42 may be 175 μm.

  The pressure-sensitive adhesive layer 44 is composed of, for example, a thin film sheet having adhesiveness on both sides, and is formed on one surface of the second support layer 43. A release paper 47 that protects the adhesive layer 44 is attached to one surface of the adhesive layer 44. Here, the adhesive force between the adhesive layer 44 and a mount 51 of the cover portion 32 described later is configured to be weaker than the attractive force between the micro suction cup layer 41 and the objective lens 3.

The cover portion 32 includes a mount 51 that is larger than the suction cup portion 31 and has a substantially egg shape, a print layer 52 formed on one surface of the mount 51, and a protective layer 53 formed on one surface of the print layer 52. A through hole 32A is formed through which a string 54 used for the hand strap can be inserted.
The mount 51 is made of, for example, PET having a thickness of 50 μm, and a printing layer 52 is formed on one surface by silk printing.
The protective layer 53 is a transparent film having adhesiveness on one side, and covers one side of the printing layer 52. And the printing layer 52 is protected by providing the protective layer 53 on the upper surface of the printing layer 52.

  The suction cup 31 and the cover 32 are bonded together by peeling the release paper 47 attached to one surface of the adhesive layer 44 of the suction cup 31 and adhering the adhesive layer 44 to the back surface of the mount 51 of the cover 32. ing. In addition, when the suction | attraction force by the suction cup part 31 falls, the suction cup part 31 and the cover part 32 can be peeled, and the new suction cup part 31 and the cover part 32 can be adhere | attached.

  When the lens cover 1 is attracted to the objective lens 3, the suction cup peeling paper 46 is peeled off, the micro suction cup layer 41 is brought into contact with the objective lens 3, and lightly pressed from above the cover portion 32 with a finger. Thus, since the inside of the recessed part 45 of the micro suction layer 41 becomes a negative pressure, the micro suction layer 41 functions as a suction cup and is attracted to the objective lens 3 as shown in FIG. Here, since the adhesive force between the adhesive layer 44 and the mount 51 is configured to be weaker than the attractive force between the micro suction cup layer 41 and the objective lens 3, the lens cover 1 is peeled from the objective lens 3. Sometimes, the backing paper 51 is prevented from peeling from the adhesive layer 44.

  The mobile phone 2 expands the first housing 11 and the second housing 13 and performs power operation by appropriately performing key operations. When used as a telephone, the telephone operation is performed in this state. When the call processing is started, a voice signal input to the microphone 17 is transmitted from the antenna as voice data by a call processing circuit (not shown) provided inside the first housing 11. Also, the voice data received from the antenna by the call processing circuit is output from the speaker 22 as a voice signal. Thus, it will be used as a telephone.

In order to use the mobile phone 2 as a camera, the first casing 11 and the second casing 13 are expanded as described above, and the power is turned on by appropriately performing key operations. Then, by performing a predetermined operation with the operation key unit 16, a shooting mode in which shooting with a built-in camera is possible is set. At this time, the lens cover 1 attached to the objective lens 3 is peeled off and attached to an appropriate position in the first housing 11 that does not interfere with shooting by the built-in camera, as shown in FIG.
Note that the sticking position in this case is not limited to the first housing 11 but may be the second housing 13. However, if the lens cover 1 is held by hand, dirt on the hand adheres to the surface of the micro suction cup layer 41, which causes a reduction in the suction force between the micro suction plate 41 and the objective lens 3. Therefore, it is not preferable.
Further, the string 54 may be inserted into the through hole 32A, and the string 54 may be attached to the strap hole 11A. By doing so, it is possible to use the string 54 as a hand strap and to prevent the lens cover 1 from being lost when the lens cover 1 is peeled from the objective lens 3. In addition to being used as a hand strap, the lens cover 1 is adsorbed to the first casing 11 or the second casing 13 of the mobile phone 2 by utilizing the original function of a suction cup that adsorbs to a flat solid such as a lens or glass. You may keep it. By doing in this way, even if the string 54 is not inserted through the through hole 32A, loss can be prevented and the function as an accessory can also be exhibited. Further, if the character's face or the like is printed on the front and back surfaces of the lens cover 1, the commercial value can be further increased.

Next, the photographer directs the objective lens 3 toward the subject to be photographed and presses the shutter key 16 so that the subject image is stored in a memory (not shown) provided therein.
Then, by performing a predetermined operation with the operation key unit 16, the photographing mode is ended, and the lens cover 1 is reattached to the objective lens 3.

  According to the lens cover 1 configured as described above, the concave portion 45 of the micro sucker layer 41 is adsorbed to the objective lens 3 which is a non-adsorbed object, and functions as a lens cover without using an adhesive. Since the close contact with the objective lens 3 is intended, the adhesive does not adhere to the objective lens 3 when the lens cover 1 is peeled off, and the objective due to a chemical change such as plasticity generated between the objective lens 3 and the adhesive. The deterioration of the lens 3 is suppressed.

  In addition, an adhesive layer 44 is formed on the suction cup portion 31, and the adhesive layer 44 and the mount 51 of the cover portion 32 are detachably bonded to each other. Even if the suction force due to the pressure decreases, the suction force between the micro suction cup layer 41 and the objective lens 3 is maintained by peeling the suction cup part 31 and the cover part 32 and bonding the new suction cup part 31 and the cover part 32 together. The Thus, since it is not necessary to replace the entire lens cover 1, it is more economical than the case where the lens cover 1 is replaced together.

In addition, this invention is not limited to the said embodiment, A various change can be added in the range which does not deviate from the meaning of this invention.
For example, in the above-described embodiment, the lens cover 1 is configured to be attached to the objective lens 3 of the mobile phone 2. However, the present invention is not limited to this, and other camera functions such as a portable information terminal and a digital still camera are possible. A lens cover that protects the camera lens may be provided.

BRIEF DESCRIPTION OF THE DRAWINGS It shows the mobile phone with a camera function in one Embodiment of this invention, (a) is a perspective view, (b) is the perspective view seen from the direction different from (a). FIGS. 2A and 2B show a mobile phone with a camera function in FIG. 1, in which FIG. 1A is a front view in a folded state, and FIG. 1B is a front view showing a camera photographing state in FIG. 1A and 1B show a lens cover according to an embodiment of the present invention, in which FIG. 1A is a plan view and FIG. In FIG. 1, (a) is a cross-sectional view of the suction portion, and (b) is a cross-sectional view of the cover portion. It is a perspective view which shows the micro suction cup layer in FIG. It is.

Explanation of symbols

3 Objective lens (non-adsorbent)
31 Suction cup part 32 Cover part 41 Micro sucker layer 45 Recessed part

Claims (2)

  A lens cover comprising: a suction cup portion having a micro suction cup layer that has a micro concave portion formed on the surface thereof and adsorbs to a non-adsorbed material; and a cover portion formed on one surface of the suction cup portion. The lens cover according to claim 1, wherein the suction cup portion and the cover portion are detachably bonded.

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