Abstract:
An optical access apparatus is provided. The optical access apparatus includes a mounting plate, characterized in that the mounting plate has a bent portion acting as a balance plate of the optical access apparatus.

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
   This Application claims the right of priority based on Taiwan Patent Application No. 93120116 entitled “AN ELECTRONIC APPARATUS HAVING A SHOCK ABSORBER” filed on Jul. 5, 2004, which is incorporated herein by reference. 
   FIELD OF THE INVENTION 
   The present invention relates to an electronic apparatus having a vibration absorber, and more particularly, to a vibration absorber having a plurality of deformation spaces. 
   BACKGROUND OF THE INVENTION 
   Mechanical vibrations are commonly generated from the electronic components in most electronic apparatuses, for example, computers or projectors with cooling fans, or recorder players, CD players or DVD players having motors used to rotate tapes or spin disks. Those undesirable mechanical vibrations propagating within the apparatuses generally turn into the sources of noises. Some of the vibrations become the electronic noises interfering with the intended operations of the apparatuses while some others are converted into undesirable sounds that make the users annoyed. 
   In order to weaken undesirable mechanical vibrations, the electronic devices are conventionally wrapped or padded with elastic materials, such as rubbers or corks, to absorb some of the vibrations and convert them into heat. However, such a traditional approach has gradually lost its advantages, as the trend of reducing size in electronic devices is ongoing. The smaller the electronic devices are, the more sensitive to any slight vibrations they become. Accordingly, there is a need to provide a more advantageous technology for reducing such vibrations effectively so as to fabricate more desirable electronic apparatuses. 
   SUMMARY OF THE INVENTION 
   The present invention provides an electronic apparatus including a housing, an electronic device generating vibrations during operations, and a vibration absorber. The vibration absorber, having a cavity and a plurality of deformation spaces, is positioned in the housing, wherein the cavity is inserted with the electronic device so as to reduce the vibrations and prevent the housing from the vibrations. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
       FIG. 1  shows an internal structure of an electronic apparatus in accordance with the present invention. 
       FIG. 2A  shows a vibration absorber and a cooling fan before assembling in accordance with the present invention. 
       FIG. 2B  shows a vibration absorber assembled with a cooling fan in accordance with the present invention. 
       FIG. 3  perspectively shows a vibration absorber in accordance with the present invention. 
       FIGS. 4A and 4B  show a vibration absorber in front and rear views respectively in accordance with the present invention. 
   

   DETAILED DESCRIPTION 
   In accordance with the present invention, the electronic apparatus and the electronic device are respectively described and illustrated by way of a projector and a cooling fan, resulted from certain of the preferred embodiments. As shown in  FIG. 1 , the projector  100  includes a housing  120 , a vibration absorber  160  positioned in the housing  120 , and a cooling fan  140  embedded into the vibration absorber  160 . 
   As shown in  FIGS. 2A-2B , the vibration absorber  160  includes a cavity  161  formed for fitting the contour  141  of the cooling fan  140  inserted thereinto. The vibration absorber  160  is made of elastic materials such as silicon rubber, polyurethane, and poly vinyl chloride etc., in which the silicon rubber exhibiting hardness of greater than 35 Shore is preferred. However, because merely using the elastic materials for absorbing vibrations is insufficient as the above described, the vibration absorber  160  of the present invention additionally provides a plurality of deformation spaces  162  in order to reduce the vibrations effectively and prevent the housing  120  from them as well as keeping other devices, also connected with the housing  120  in the electronic apparatus, unaffected thereby. The vibration absorber  160  specifically includes a blocking device  163  formed on the bottom portion of the cavity  161 , used to avoid the cooling fan  140  from disengaging the vibration absorber  160  during operations. The blocking device  163  further includes an air outlet  168  for discharging air through the cooling fan  140 . 
   The plurality of deformation spaces  162  are particularly described as below. As shown in  FIG. 3 , the vibration absorber  160  has a outer layer  164 , an inner layer  165  (i.e. the wall of the cavity  161 ), and a plurality of linking slices  166 , wherein each of the plurality of linking slices  166  is crossed to each other and connected with the outer layer  164  and the inner layer  165 , so as to create a plurality of deformation spaces  162  between the outer layer  164  and the inner layer  165 . 
     FIGS. 4A and 4B  showing the vibration absorber  160  in a front and rear views respectively according to one embodiment of the present invention are intended to demonstrate that, each deformation space  162  is an open-ended channel, i.e. each opening of the deformation space  162   a  in  FIG. 4A  has its corresponding opening of the same deformation space  162   b  as indicated in  FIG. 4B . Furthermore, the openings  162   a / 162   b  are polygonal-shaped and distributed in the vibration absorber  160  to form a net configuration, thereby creating a firm structure for holding the electronic device (i.e. the cooling fan  140 ) as well as absorbing vibrations effectively. 
   The present invention has been described above with reference to preferred embodiments. However, those skilled in the art can understand that the scope of the present invention need not be limited to the disclosed preferred embodiments. On the contrary, it is intended to cover various modifications and equivalent arrangements within the scope defined in the following appended claims. The scope of the claims should be accorded the broadest interpretation so as to encompass all such modifications and equivalent arrangements.