Abstract:
A radiation protector is disclosed for protecting against radiation having a wavelength, which may include a front panel portion that includes a flexible carbon fiber layer having an outer edge and a back panel portion that includes a base layer mobile device having an outer edge. The outer edges of each of the flexible carbon fiber layer and base layer extend from edges of an electronic device having an antenna and removably positioned within a device housing on the base layer by a width w, wherein the width w is a fraction of a the wavelength of the radiation emitted by the antenna, and wherein the width w is between 0.5 and 2.5 centimeters from each of front, back, top and bottom sides of the electronic device.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    This application is a continuation-in-part of U.S. application Ser. No. 13/672,695 entitled “Radiation Protector For Mobile Devices”, filed on Nov. 8, 2012, which is also a continuation-in-part of U.S. application Ser. No. 13/668,284 entitled “Radiation Protector For Mobile Devices”, filed on Nov. 4, 2012, which is a non-provisional of Provisional Application Ser. No. 61/585,600, entitled “Hood and Garment That Protects Against Cellular Phone and Microwave Energy”, filed on Jan. 11, 2012, and is a non-provisional of Provisional Application Ser. No. 61/560,490, entitled “Fabric That Protects Against Cellular Phone Energy”, filed on Nov. 16, 2011, and claims priority from those applications and incorporates them by reference. 
     
    
     FIELD OF THE INVENTION 
       [0002]    The present invention generally relates to a radiation protector for mobile devices and the like. More specifically, the invention relates to a radiation protector that may be customized to the wavelength of an electronic device emitting potentially harmful radiation to provide maximum protection. 
       BACKGROUND OF THE INVENTION 
       [0003]    Cell phones and other mobile devices are extremely prevalent nowadays, being used not only for communications but also for entertainment purposes. However, the effect of mobile phone radiation on human health is the subject of recent interest and study, as a result of the enormous increase in mobile phone usage throughout the world (as of November 2011, there were more than 5.981 billion subscriptions worldwide). Mobile phones use electromagnetic radiation in the microwave range. Other digital wireless systems, such as data communication networks, produce similar radiation. It is noted that the electromagnetic radiation is a non-ionizing radiation as well as sunlight, however, both of them can cause cancer. 
         [0004]    The World Health Organization (WHO) has classified mobile phone radiation on the International Agency for Cancer Research (IARC) scale into Group 2B—possibly carcinogenic. That means that there could be some risk of carcinogenicity, so additional research into the long-term, heavy use of mobile phones needs to be conducted. Some national radiation advisory authorities have recommended measures to minimize exposure to their citizens as a precautionary approach. 
         [0005]    In February 2009, the telecom company Bouygues Telecom was ordered to take down a mobile phone mast due to uncertainty about its effect on health. Residents in the commune Charbonnieres in the Rhône department had sued the company claiming adverse health effects from the radiation emitted by the 19 meter tall antenna. The milestone ruling by the Versailles Court of Appeal reversed the burden of proof which is usual in such cases by emphasizing the extreme divergence between different countries in assessing safe limits for such radiation. The court stated, considering that, while the reality of the risk remains hypothetical, it becomes clear from reading the contributions and scientific publications produced in debate and the divergent legislative positions taken in various countries, that uncertainty over the harmlessness of exposure to the waves emitted by relay antennas persists and can be considered serious and reasonable. 
         [0006]    In October 2012, Italian high court (Corte suprema di cassazione) granted an Italian businessman, Innocente Marcoloni a pension for occupational disease, as they found a causal link with his benign brain tumor to mobile phones and cordless phones, that the businessman had used for six hours a day during twelve years. As it takes time to develop cancer, the court disregarded short-term studies. The Court also disregarded studies that were even partially funded by the mobile phone industry such as the INTERPHONE. 
         [0007]    To counter the effects of this harmful radiation, metallic shields have been developed. Unfortunately, these metallic shields alone are insufficient to absorb the harmful radiation emitted by these electronic devices to the point where it would not harm the body. Therefore, there is still a need for a shield that can absorb the harmful radiation emitted by these mobile devices to allow users to use these devices without harm. 
       SUMMARY OF THE INVENTION 
       [0008]    It is an object of the present invention to provide a radiation protector for mobile devices that can substantially reduce the radiation emitted by the mobile devices. 
         [0009]    It is another object of the present invention to provide a “book style” radiation protector for mobile devices, wherein the mobile device can be disposed on one side of the inner portion of the protector, and a shielding unit can be disposed on the other side thereof. 
         [0010]    In another aspect, a radiation protector for mobile devices may include a mobile device housing and an inner surface having a first side and a second side. In one embodiment, the first side and second side are arranged in a horizontal manner, and the size of the first side and second side are substantially similar. The mobile device housing is disposed on a first side and a radiation shielding unit is disposed on the second side. In another embodiment, the inner surface and an outer surface can be made by leather, rubber, and/or the combination thereof, and the thickness of the protector is about 1 to 3 centimeters. 
         [0011]    In another embodiment, the radiation shielding unit is disposed to cover almost the entire second side, and the mobile device housing is disposed in a predetermined position on the first side, wherein a predetermined distance between an outer edge of the device housing and an outer edge of the first side is w, a predetermined distance between a top edge of the device housing and a top edge of the first side is w1, a predetermined distance between a bottom edge of the device housing and a bottom edge of the first side is w2, and a predetermined distance between an inner edge of the device housing and an inner edge of the first side is w3. In a preferred embodiment, the predetermined distances w, w1, w2 and w3 are between 0.5 cm to 2.5 cm 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0012]      FIG. 1  illustrates a schematic view of the radiation protector for mobile devices in the present invention. 
           [0013]      FIG. 1 a    illustrates a schematic view of one embodiment of the radiation protector for mobile devices in the present invention. 
           [0014]      FIG. 2  illustrates a schematic view of the radiation protector for mobile devices when it is folded in the present invention. 
           [0015]      FIG. 3  illustrates testing results of the radiation protector for mobile devices in the present invention. 
           [0016]      FIG. 4  is a front elevational view of the exemplary radiation protector of  FIG. 1  with a mobile phone shown inserted. 
           [0017]      FIG. 5  is diagrammatic side devotional view of the radiation protector with the mobile phone inserted according the embodiment of  FIG. 4 . 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0018]    The detailed description set forth below is intended as a description of the presently exemplary device provided in accordance with aspects of the present invention and is not intended to represent the only forms in which the present invention may be prepared or utilized. It is to be understood, rather, that the same or equivalent functions and components may be accomplished by different embodiments that are also intended to be encompassed within the spirit and scope of the invention. 
         [0019]    Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood to one of ordinary skill in the art to which this invention belongs. Although any methods, devices and materials similar or equivalent to those described can be used in the practice or testing of the invention, the exemplary methods, devices and materials are now described. 
         [0020]    All publications mentioned are incorporated by reference for the purpose of describing and disclosing, for example, the designs and methodologies that are described in the publications that might be used in connection with the presently described invention. The publications listed or discussed above, below and throughout the text are provided solely for their disclosure prior to the filing date of the present application. Nothing herein is to be construed as an admission that the inventors are not entitled to antedate such disclosure by virtue of prior invention. 
         [0021]    Broadly, embodiments of the present invention generally provide a radiation protector for mobile devices and the like. With reference to  FIG. 1 , a diagrammatic view of a radiation protector for mobile devices  200  that protects against cellular phone energy according to one embodiment is shown. The radiation protector  200  may be used to shield microwave energy transmitted to and from a portable electronic device such as a cell phone, other sources of radiation (e.g. sunlight, microwave ovens, etc.), or the like, so the user may make or receive calls without having to worry about radiation exposure to the body, eyes, or brain. 
         [0022]    In one aspect, the radiation protector for mobile devices  200  may include a mobile device housing  210  and an inner surface  220  having a first side  221  and a second side  222 . In one embodiment, the first side  221  and second side  222  are arranged in a horizontal manner, and the size of the first side  221  and second side  222  are substantially similar. The mobile device housing  210  is disposed on a first side  221  and a radiation shielding unit  230  is disposed on the second side  222 , as shown in  FIG. 1 . In another embodiment, the inner surface  220  and an outer surface  240  (see  FIG. 2 ) can be made by leather, rubber, and/or the combination thereof, and the thickness of the protector is about 1 to 3 centimeters. 
         [0023]    Still referring to  FIG. 1 , in another embodiment, the radiation shielding unit  230  is disposed to cover almost the entire second side  222 , and the mobile device housing  210  is disposed in a predetermined position on the first side  221 , wherein a predetermined distance between an outer edge of the device housing  210  and an outer edge of the first side  221  is w, a predetermined distance between a top edge of the device housing  210  and a top edge of the first side  221  is w1, a predetermined distance between a bottom edge of the device housing  210  and a bottom edge of the first side  221  is w2, and a predetermined distance between an inner edge of the device housing  210  and an inner edge of the first side  221  is w3. In one embodiment, width (w, w1, w2, w3) may relate to the wavelength of signals of the mobile device being used. For example, mobile phones make use of various bands of radio frequencies to communicate between the mobile phone to a base station for a cell and the base station to mobile phone. In a preferred embodiment, the predetermined distances w, w1, w2 and w3 are between 0.5 cm to 2.5 cm, which can be derived and illustrated as following: 
         [0024]    It is known that microwaves in activated mobile phones travel in the air almost at the speed of light. The relationship between the wavelength, the speed of light and the frequency follows the well-known formula: 
         [0000]      Wavelength (λ)=Speed of Light( C )/Frequency
   The speed of light (C)=3×10 10  cm/sec   The common frequency for cell phone here in the U.S.=1.9 to 2.1 GHz   So, the wavelength (λ) is between 14.3 cm and 15.8 cm.   
 
         [0028]    The electromagnetic energy is conducted by antennas, and it travels back and forth in any moment during wireless communication. Thus, the ideal length of an antenna is half of the wavelength by which it transmits. In a mobile phone, there are at least two antennas, so in order to effectively absorb the microwave of the mobile phone, the radiation protector has to comply with the following equation: 
         [0000]        D   AR   =WL/ 2 3      wherein D AR  is an effective distance to absorb radiation, WL is wavelength.     
         [0030]    As discussed above, the wavelength of the electromagnetic wave of the mobile phone is about 15 cm, so the effective length to absorb radiation is about 15 cm/ 2   3 , which equals 1.875 cm and falls within the range between 0.5 and 2.5 cm. 
         [0031]    In a further embodiment, the radiation shielding unit  230  is made by high pressure compressed carbon fiber leather, which may have a weight of 220 g/m 2 . The carbon fiber is like graphite, composed of “organic polymers,” which may be made by long strings of molecules bound together by carbon atoms with heat treatment at more than 2200° C., and then integrated into the leather composite with high pressure. In one embodiment, the radiation shielding unit  230  may include 3000 carbon fiber filaments per yarn. In another embodiment as shown in  FIG. 1   a,  the radiation shielding unit  230  can be inserted between two leather layers  240 . 
         [0032]    When in use, the radiation protector  200  can be folded as a book, so the outer surface  240  with the radiation shielding unit  230  can be disposed on top of the mobile device. When the phone call comes in, the user can accept the call and then put the outer surface  240  back to the top. It is important to note that when the protector  200  is folded, the size of the folded outer surface  240  is still 0.5 to 2.5 cm larger than the device housing  210  on four sides thereof, so that the radiation can be substantially reduced when the mobile device is in use. 
         [0033]      FIG. 3  shows a testing result of the radiation shielding effect of the radiation protector  200  in the present invention. The testing was conducted with an iphone 5C and the testing in three situations: the phone only (“Baseline iphone 5C”), the phone with a regular case (“iphone 5C with plastic shell”), and the phone with the protector in the present invention (“iphone 5C with plastic shell and cover”). According to the American and international government testing standard, the testing result shows that the radiation can be effectively shielded by about 90%. 
         [0034]    With reference to  FIG. 4 , a front elevational view of the exemplary radiation protector of  FIG. 1  is shown with a mobile phone  300  inserted and the protector is folded as a book. With reference to  FIG. 5 , a diagrammatic side elevational view of the radiation protector  200  with the mobile phone  300  inserted therein. Also shown in  FIG. 5  is an exemplary mobile tower  950  with which the mobile device  300  communicates giving off electromagnetic radiation  960 . 
         [0035]    As shown in  FIG. 5 , in the embodiment shown, the front side of the holder that is primarily of radiation shielding unit  230  within the outer cover  240  is configured at a height that may be higher (or longer) than the height of the phone  300 . As shown, this may allow for the signals between at least the top portion of the mobile phone  300  and the tower  950  to freely travel. An added benefit to this configuration takes advantage of the typical path of electromagnetic radiation  960  from a mobile device  300 , which usually occurs in a perpendicular direction of the path to the user&#39;s head, while the sound waves from the phone  300  typically have a parallel course with respect to the user&#39;s head and ears. Thus, the electromagnetic radiation  960  can absorbed more effectively by the radiation shielding unit  230  with the width (w, w1, w2, w3) surrounding the phone  300 . What is also advantages to the this configuration is the fact that many cell phones have internal antennas in the top portion of the phone  300  where the phone  300  may be exposed from the protector  200 , thereby enhancing reception for the phone  300 . 
         [0036]    Having described the invention by the description and illustrations above, it should be understood that these are exemplary of the invention and are not to be considered as limiting. Accordingly, the invention is not to be considered as limited by the foregoing description, but includes any equivalent.