Patent Publication Number: US-2005141221-A1

Title: LED bulb with remote controller

Description:
BACKGROUND OF THE INVENTION  
      (a) Field of the Invention  
      The present invention relates to a LED bulb, especially to a remote-controlled LED bulb.  
      (b) Description of the Prior Art  
      Compared to conventional lighting such as incandescent lamps, tungsten halogen Illuminator, fluorescence lights, the LED lighting technology has following advantages:  
      1. Low energy requirement: the LED light source, compared to the traditional light source with the same luminous efficiency, can save over 80% energy consumption. For example, lights on a 2000-meter-long bridge consume only 10 watt of electricity per hour so that several hundred thousands can be saved per year.  
      2. Reduced maintenance cost: LEDs do not require any special equipment or drivers, to deal with various environments. And there is no need to replace the light source frequently, the maintenance costs and replacement expenses are reduced dramatically.  
      3. Longer lifetime: the LED made of semiconductor can convert electric power into light energy. Sealed by epoxy, it can stand high shock and vibration. The LED illuminator normally works for at least twenty thousand hours, even lasts up to hundred thousand hours. Calculation based on 12 hours per day, the light source would be used over 5 years.  
      4. Higher energy efficiency: the luminous efficiency of the incandescent or halogen sources is 12-24 Im/W and that of the fluorescence lights is 50-120 Im/W. Incandescent or halogen sources, generates most of their light as heat and only produce 10% useful visible light. In order to have a single color, it is necessary to use a color filter to eliminate other colors thus causes the waste of energy. The luminous efficiency of the LED light is 50-200 Im/W with narrow spectrum and single color, no need to user a color filter. The useful visible light only consume 10% energy emitted from the light source.  
      5. Easy assembling with stableness: even with the temperature extremes, high shock and vibration environment, the LEDs driven by direct current still works stably.  
      6. Higher safety: the light strength of LED light is adjustable and stable, with lower glare, heat generation, and less ultraviolet light. As a cold light source, users can touch the lamp. No mercury content thus has no harm.  
      The LED illuminator based on new LED technology with features in low power waste, long life span, shock resistance, easiness of control.  
      Without the pollution of mercury or other gas emitted, it&#39;s environmental friendly.  
      The LED light source not only provide illumination but also provide better choice for landscaping design of cities. However, the LED illuminators available on the market all need complicated control flow and provide flat illumination. For aesthetic reason, the LED illuminator should have multiple colors.  
      The traditional way is to use a set or several set of LED lights controlled by control circuitry. Only the intensity scale capability can be used to produce different colors and the result is monotonous.  
      Therefore, there is a need to provide a LED bulb that can be controlled in an easy way and provides various combinations of different color lights.  
     SUMMARY OF THE INVENTION  
      It is a primary object of the present invention is to provide a remote-controlled colorful LED bulb made of a plurality of LED illuminators. Through a remote controller, various combinations of different color lights emitted from LED illuminators can be achieved.  
      A further object of the present invention is to provide a colorful LED bulb controlled by a simple control device and providing color lights. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
      The accomplishment of the above-mentioned object of the present invention will become apparent from the following description and its accompanying drawings which disclose illustrative an embodiment of the present invention, and are as follows:  
       FIG. 1 ( a )- 1 ( c ) is a perspective view of a LED illuminator in accordance with a preferred embodiment of the present invention.  
       FIG. 2  is a schematic drawing of remote circuitry of the present invention.  
       FIG. 3  shows the circuitry of the remote controller of the present invention.  
       FIG. 4  shows the circuitry of a light bulb in accordance with the present invention. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT  
      The present invention relates to a LED luminary with a remote controller with simple structure, easy for assembling, and having various control modes.  
      Refer  FIG. 1 ( a )- 1 ( c ), an LED bulb of the present invention is composed of a base  211  having a LED illuminator set  21 , a circuitry controller  22  and a decoder  23 , a globe  212  assembling with the base  211  to form a bulb for mixing the light emitted from the LED illuminator set  21 , a base casing  213  for housing the base  211 , a receiver  24  disposed on the surface of the base casing  213  for receiving signals from a remote controller  1 . The receiver  24  is connected to a plug  215  inserted in the base  211  by a wire  214  for receiving the coded signal sending from the remote controller  1 .  
      In actual applications, the LED illuminator set  21  includes at least one red, one blue, one green, one yellow LED or different combinations. The receiver  24  is an infra-red receiver. The light bulb  2  further includes a power supply as a power source for the LED illuminator set  21 , wherein the power supply further having a circuitry for AC to DC converter and power supply  25 . The circuitry controller  22  is a switching function circuitry  221  and further having an amplifier  222  for increasing the control signals.  
      Another embodiment of the present invention includes a remote controller  1  for generating signals in code, a base  211  having a LED illuminator set  21 , a circuitry controller  22  and a decoder  23 , a globe  212  combined with the base  211  to form a light bulb in which the light emitted from the LED illuminator set  21  is mixed, a base casing  213  for housing the base  211 , and a receiver  24  arranged on the base casing  213  for receiving the coded signal generated from the remote controller  1 .  
      Refer to  FIG. 2 , this figure discloses the schematic drawing of the remote circuitry. The LED luminary includes a remote controller  1  and a light bulb  2 . The remote controller  1  has at least one button set  11  with a plurality of buttons for inputting operation signals, an encoder  12  connected to the buttons for making the operation signals produced by the button set  11  in code. While the light bulb  2  includes at least a LED illuminator set  21  that is composed by a plurality of LED illuminator emitting various kind of colors respectively; a circuitry controller  22  is connected to the LED illuminator set  21  for making each of the LED illuminators emitting their light of color; a receiver  24  for receiving the signals in code transmitted from the remote controller  1 ; and a decoder  23  arranged between the circuitry controller  22  and the receiver  24  for receiving the signals in code and decoding for producing control signals so as to control the circuitry controller  22 . Each of the LED illuminator set  21  is controlled by the corresponding buttons of the remote controller  1  so as to emit light with necessary colors. The  FIG. 3  &amp;  FIG. 4  show the circuitry of the remote controller  1  and the light bulb  2  respectively.  
      Therefore, users&#39; can choose the color of the LED illuminator from remote end.  
      It should be noted that the above description and accompanying drawings are only used to illustrated some embodiments of the present invention, not intended to limit the scope thereof. Any modification of the embodiments should fall within the scope of the present invention.