Abstract:
A portable telephone with a camera is disclosed, in which a functionality of a camera being rotated to an object in any desired rotational angle without a main body turned around. The portable telephone comprises a main body having a control panel installed on a front face of the main body and a rotation-support part formed in an upper end of the main body, a folder having a display panel and a speaker installed on a front face of the folder and having a connecting part formed in a low end of the folder, the connecting part being rotatably coupled to outer sides of the rotation-support part, and a camera module being rotatably coupled to inner sides of the rotation-support parts.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
   This application claims the benefit of Korean Application No. P2001-32865, filed on Jun. 12, 2001, which is hereby incorporated by reference as if fully set forth herein. 
   BACKGROUND OF THE INVENTION 
   1. Field of the Invention 
   The present invention relates to a portable telephone with a built-in camera, and more particularly, to a portable telephone with a camera having a rotatable lens which enables users to aim an object in a desired rotational angle as wide as possible. 
   2. Discussion of the Related Art 
   In general, Portable telephones include cellular phones or Personal Communication Systems (PCS) having wireless communication capabilities. Nowadays as the need of video/image communication emerges, as well as voice communication, a portable telephone with a camera can be suggested to satisfy this demand. 
   By considering  FIG. 1 , a conventional portable telephone with a camera can be described as follows. Inside of a main body  1  of the portable telephone, a camera  3  is mounted on the fixed location of an upper body. This type of portable telephone with a camera is unable to aim an object with any various angles without rotating a whole body, since the camera lens is formed into an embody of a portable telephone. For instance, since the camera lens is always facing out in the same direction of a LCD from the main body  1 , users cannot aim a lens toward an object on the other side while they&#39;re looking at the LCD. Therefore in order to shoot an object on the other side (in the opposite direction of a LCD face), the main body  1  of a portable telephone needs to be turned around. Afterwards, users cannot check an aiming position of the camera lens, since not being able to look at the LCD on the main body. In short, by facing the main body out of users&#39; side, they&#39;re unable to look at the image of pictures through the LCD panel such as a viewfinder of a camera. And also once it is turned around, it is hard to use function keys on a control panel. This leads to one of drawbacks. 
     FIG. 2  illustrates another example of conventional portable telephones with a camera. In an upper end of a main body  1  of this portable telephone, a camera lens  3   a  is installed separated from the main body  1 . In this case, this camera can only rotate with limited angles, for instance rotating up and down in a sense. This type of portable telephone with a camera gives a limitation such that it rotates in narrow angles. Since even the camera lens is exposed and sticks out on the edge of the main body  1 , it is quite easy to be damaged and contaminated. 
     FIG. 3  illustrates another example of conventional portable telephones. In  FIG. 3 , a camera is mounted on an upper end of a main body. This camera rotates only on a horizontal axis. In this case, not being capable of rotating on a vertical axis (front to back of the main body  1 ), the horizontal rotational movement of camera doesn&#39;t give enough angles to shoot an object in a desired position. Unfortunately this type of camera on a portable telephone could not solve the problem in the previous example, such as easily damaged and contaminated of a camera lens. 
   SUMMARY OF THE INVENTION 
   Accordingly, the present invention is directed to a portable telephone with camera that substantially obviates one or more problems due to limitations and disadvantages of the related art above. 
   An object of the present invention is to provide a portable telephone with a camera having a wide rotational angle of shooting an object in a front to back side of the portable telephone. 
   Another object of the present invention is to provide a portable telephone with camera whose installation is more protective from the damage and contamination. 
   In order to achieve the purpose of this invention mentioned above, a portable telephone with a camera includes a main body having a control panel installed on a front face of the main body and a rotation-support part formed in an upper end of the main body, a folder having a display panel and a speaker installed on a front face of the folder and having a connecting part formed in a low end of the folder, the connecting part being rotatably coupled to outer sides of the rotation-support part, and a camera module being rotatably coupled to inner sides of the rotation-support part. 
   Also, a rotation axis of the camera module is not placed on a rotational axis of the folder, the rotational axes not overlapping each other. 
   A hole for the folder, fitting a connecting part of the folder, is formed outside of the rotation-support part and A hole for fitting the camera module is formed inside of the rotation-support part for rotational movements. Herein, inside of the rotation-support part and the connecting part are formed by air gap wherein flexible cables are installed. In addition, the camera module is formed as a cylindrical shape having 360-degree rotational movements. Both sides of the camera module are formed by a rotation axis, desirable, having at least one of those rotation axes an air gap. 
   According to an implementation of the present invention, a method of lock-in position is installed, between the camera module and the rotation-support part, fixing the camera module in a desired position. The method of lock-in position installed on one side of the camera module comprises an elastic sub-part producing an elasticity caused by being rotated simultaneously with the camera module; and a bushing fixed inside of the rotation-support part producing a strength to transform the elasticity when the camera module rotating. 
   A surface of the elastic sub-part has a shape of plate formed by a protrusion. And one side of the elastic sub-part is cut open in order to rotate with an embodied of the camera module. A circumference of the elastic sub-part is partially cut open for being rotated as an embodied with the camera module and one side of the camera module is formed by a first concave part fitting the elastic sub-part, the first concave part matched with a shape of the elastic sub-part. And also some area of the first concave is subsided more, desirably to form second concave part. 
   On the other hand, the bushing consists of: a contacting part of a plate and a boss as an embodied of the contacting part, the rotation-support part formed by a subsided connecting part, a contacting part of the bushing settled down in the connecting part, and the boss fit in a hole for the camera module. In addition, a contacting part of the bushing is desirable to form grooves fitting to the protrusion of the elastic sub-parts. And in order for the bushing to be fixed on the rotation support parts, both sides of the contacting part is cut open and a connecting part of the rotation-support part is supposed to be formed as roughly identical shape as the contacting part. Therefore according to the present invention, a camera module of this portable telephone can be rotated freely and set depending on the location of an object. And also it could prevent a camera lens from damage or contamination besides a wide rotational angle of the camera module. 
   It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
     The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention. In the drawings; 
       FIG. 1  to  FIG. 3  illustrate front views of conventional portable telephones with a camera; 
       FIG. 4  illustrates an explored perspective view of a portable telephone with a camera according to the present invention as a rough drawing; 
       FIG. 5  illustrates a cross-sectional view of the portable telephone shown in  FIG. 4 ; 
       FIG. 6  illustrates an exploded perspective of the camera module shown in  FIG. 4 ; 
       FIG. 7  illustrates a front view of a bushing shown in  FIG. 6 . 
       FIG. 8  illustrates a perspective view of the portable telephone with a camera having a folder closed according to the present invention; and 
       FIG. 9  shows a perspective view of the portable telephone with a camera having a folder open according to the present invention. 
   

   DETAILED DESCRIPTION OF THE INVENTION 
   Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts. 
   In the below this portable telephone with a camera is described to meet the objectives by using appropriate examples in attached figures. By considering  FIG. 4  to  FIG. 6 , a portable telephone according to the present invention includes a main body  10 , a folder  20  coupled with the upper main body  20 , and a rotatable camera module  30  mounted on the main body  10 . In  FIG. 4 , a front end of main body  10  has a control panel (buttons and function keys) placed on. In an upper end of main body  10 , there is a rotation-support part rotatably coupled to a camera module  30 . In a front end of the folder  20 , a speaker and a display panel such as LCD are installed. In a lower end of the folder  20 , a connecting part  26  is rotatably coupled to the rotation-support part  14 . And there is a rotational axis  32  inserted into both sides of the camera module  30 . Herein, it is desirable for rotation-support parts  14 , a connecting part  26  and a rotation axis  32  of camera module  30  being installed as a pair. 
   On the other hand, the folder  20  is coupled outside of the rotation-support part  14  on the main body  10 . The camera module  30  is coupled inside of the rotation-support part  14  rotating separated from the folder  20  to outside of the rotation-support part  14 . As seen in  FIG. 5 , it is desirable for folder  20  and camera module  30  to have two different alignments of rotation axes. The reason is that the general application of the folder  20  versus a camera module might need different rotational angle. Therefore, it is necessary that the folder  20  and the camera module  30  can rotate separately with respect to a main body  20 . Since the camera module  30  can rotate in 360 degrees angle on a rotational axis of the rotation-support part  14 , users can aim the camera module  30  in any desired angle to an object being shot. 
   Now, the details regarding an assembly structure of a main body  10 , a folder  20 , and a camera module  30  are explained explicitly as below. First of all, as described above, the lower end of the folder  20  has a pair of connecting parts  26 . Inside of a pair of the connecting parts  26 , an air gap  24  is placed as desirable. In at least one of a pair of connecting parts  26 , a hinge element  26   a  is installed to have an easy access on folding and unfolding the folder. And also the other air gap  24  of connecting part  26  becomes a space for cables from a circuitry. In short, the air gap  24  is used as a space for flexible cables  52  of data signal to be connected between the display panel and the main body  10 . 
   In camera module  30 , there are an image sensor  34  receiving image signals, flexible cables transmitting image signals to a main board of the main body  10  in the image sensor. And also there is a transparent window  36  installed on a surface of the camera module  30 . The camera module  30  has a cylindrical shape coordinated to rotate in full 360 degrees angle. It is desirable that at least one of rotation axes  32  could be made as an axis of an air gap placed on both sides of the camera module. Through the axis of an air gap, flexible cables  54  are connected from image sensor  34  to main board of the body  10 . 
   As described above regarding the main body  10 , there is a pair of the rotation-support parts. The rotation-support part  14  is placed either in parallel with or in a certain angle with respect to body  10 . In other words, a rotation axis of the rotation-support part  14  is located upward or downward with respect to a front side of the main body  10 . Outside of the rotation-support part  14 , there is a hole for the connecting part  16 . The hole for the connecting part  16  is a place wherein a rotation axis of the hinge element  26   a  is rotatably coupled. Inside of the rotation-support parts  14 , there is a hole for the camera module  18  wherein a rotation axis of the camera module  30  placed and assembled. In addition, an air gap of inside of rotation-support part  14  placing some widths of W 1  and W 2  is used as a space to connect flexible cables  52 ,  54  with a main board of the main body  10 . 
   On the other hand, it is desirable for camera module  30  not to be too loose to rotate itself. The camera module should be fixed firmly in any desired angle after users rotate it. Eventually, it is necessary to locate a camera module  30  being rotated in any aiming angle and fixed subsequently by users, which is a role of method of lock-in position. 
   A method of lock-in position can be described as below. The method of lock-in position is installed in the location between the rotation-support part  14  of the main body  10  and the camera module  30 . The method of lock-in position includes an elastic sub-part  44  producing an elasticity (latitudinal sustainability) transformed by a rotation of the camera module  30 , and a bushing  42  transforming the elastic sub-part  44  with fixed on inside of the rotation-support parts  14  of the main body  10 . 
   More details are explained as follows. A bushing  42  consists of a roughly plate shape of contacting part  41  and a boss  43  formed to a single body with the contacting part  41 . The rotation-support part  14  is formed by a subsided connecting part  41   a  and the contacting part  41  of the bushing  42  settles down in the connecting part  41   a . Then, the boss  43  is inserted and assembled in a hole for the camera module  18 . It is necessary that a rotation of the bushing  42  should not interfere with a rotational movement of the camera module  30 . Definitely, the bushing  42  could be fixed on the rotation-support part by using an adhesive, however the consideration of a convenient assembly should be taken into account. In order to overcome this hindrance, it is necessary for the contacting part  41  of bushing  42  to be a non-circular shape. For instance, both sides of the contacting part  41  of bushing  42  are cut open and connecting part  41   a  of the rotation-support part  14  is supposed to have such a shape that matches with a shape of cut-open bushing  42 . 
   On the other hand, an elastic sub-part  44  is desirable to have a rough circular-plate shape formed by a protrusion  44   a  toward the bushing  42 . With this set-up, the camera module cannot be rotated by itself due to the fact that the protrusion  44   a  of the elastic sub-part  44  compressed and transformed by bushing  22  producing an elasticity aside. However, even if it can prevent the camera module from rotating by itself, the camera module  30  is incapable of being fixed in a designated position defined by users. Therefore, it is desirable for the bushing  42  to form a few grooves matched to the protrusion  44   a  on the side of touching the elastic sub-part in a contacting part  41 . Once a few grooves are formed described above, the camera module  30  can be fixed firmly in the desired rotational angle where the protrusion  44   a  of the elastic sub-part  44  are fit into the grooves. 
   Whereas, the elastic sub-part  44  should rotate in a single body with the camera module  30 . So the elastic sub-part  44  can be fixed on the camera module  30  by using adhesives, but the consideration of a convenience in assembly should also be taken into account. That is, the elastic sub-part  44  should be a non-circular shape. For example, as described in  FIG. 7 , both sides of the elastic sub-part are cut open with some parts C. Then, one side of the camera module  30  is formed by a first concave part matching a shape of the elastic sub-part  44  to be fit in. Once this process is done, the elastic sub-part  44  can rotate in a single body with the camera module. Furthermore, some parts of the concave part  32   a  become much subsided, so that a second concave part  32   b  is formed being capable of transforming the elastic sub-part  44 . 
   The procedure of a described method of lock-in position is as follows. Once the protrusion  44   a  of an elastic sub-part  44  are initially fit into the grooves of bushing  42 , the camera module  30  is on a mode of a fixed rotational angular position. Afterwards, users might need to adjust a camera-aiming angle of shooting an object by rotating it. With this action, it makes the elastic sub-part and the camera module rotate in a single body simultaneously. As a result, the protrusion  44   a  of the elastic sub-part  44  results comes off from the grooves in the bushing  42 . And then, the protrusion  44   a  of the elastic sub-part  44  are moved on the flat plane area where there are no grooves on the bushing  42 , so that the protrusion  44   a  are compressed. As soon as they are compressed, an effect of transformation occurs. Then, the sustainability along a side can be generated as much as the transformation occurred. At this time, the second concave part  32   b , formed on the side of the camera module  30 , plays a role in keeping no resistance against the transformation of the elastic sub-part  44 . By rotating camera module  30  continuously, the protrusion  44   a  get fit into next adjacent grooves via flat plane area. This results in locking in a next desired rotational angular position. As mentioned above, camera module  30  does not rotate by itself due to being locked in a desired rotational angular position, when the protrusion  44   a  of the elastic sub-part gets fit into the grooves  42   a  of the bushing  42 . Considering rotational angular positions to be firmly locked in, it is desirable to have a corresponding number of grooves  42   a  to be formed. In addition, a pair of the protrusions  44   a  on the elastic sub-part  44  are formed in a symmetrical pattern described in  FIG. 7 . And also, the grooves  42   a  formed on the bushing  42  should have a corresponding number of pairs to match with the protrusion  44   a . And also, by spacing grooves on the bushing  44 , rotational angular movements between adjacent grooves can be varied for locking in rotational positions of the camera module  30 . 
     FIG. 6  and  FIG. 7  show one example of designing camera module. That is, a pair of the protrusions  44   a  are formed in the elastic sub-part  44  and three pairs of grooves are formed in the bushing  42 . Besides, an angle theta  1  between a reference groove and the next adjacent one in counterclockwise is approx. 30 degrees and an angle theta  2  between the reference and the next adjacent one in a clockwise is approx. 120 degrees. Therefore, a user can flip the folder and set the camera module  30  fixed on a first rotational position after rotating it in a 30 degree counterclockwise. In a clockwise direction, camera module  30  can be fixed on a first rotational position after being rotated in 120 degrees. A rotational angle of adjacent grooves on the bushing is varies by the number of grooves formed on it. Practically they can be modified for a design consideration. 
     FIG. 8  and  FIG. 9  illustrates a portable telephone with a camera by this present invention. First of all, according to this invention, since a camera module has full 360 degree rotational movements relatively with respect to a main body, users can shoot an object in any angular position by rotating the camera module itself, instead of turning a whole body of a portable telephone on an image calling or a regular picture-taking mode. Eventually, an image calling by this portable telephone becomes more handy and particularly in taking a picture. Since the camera module, aimed toward an object to be shot, can be rotated over the below of the flipped folder (the camera lens is facing out of a back side of the main body), a display panel on a front side can also be used as a- viewfinder of camera such as a conventional digital camera. Therefore, users can watch how a picture can be being taken through a display panel when they try to shoot an object at the same time. And secondly, the camera module is located between rotation-support parts of the main body. Precisely, both a left and a right side of the camera module, supported by the main body are more protective than others. Consequently the usage of this portable phone with camera is very durable and reliable against external impacts. Thirdly, according to the present invention, the camera module can be rotated in such an angle that the lens cannot be exposed from outside when users are carrying it or not using it. So this portable telephone has an advantage of resistances of damaged and contaminated on the camera lens, since it can be faced down into the main body. Therefore, it also prevents a picture quality from contaminated due to damage or scratch of a window of the camera module. 
   It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. Thus, it is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.