Patent Application
20080304249
1. Field of Invention
The present invention is related to light sources in general and, more particularly, to light sources wherein the source can be controlled to emit light according to the user's preferences and achieves greater durability through the addition of cooling and self-repair features.
2. Description of Prior Inventions
The common light bulb used in most households comprise threads at a narrower portion for inserting and securing in connection with a power source, a filament through which electricity is conducted and light is produced, a glass bulb filled with an inert gas or vacuum through which the light is emitted. This light bulb is very inexpensive and has enjoyed popular status for nearly 120 years. However, it is fragile in that the glass outer bulb breaks fairly easily. In addition, it is not highly durable since it “burns” out fairly quickly. The bulb becomes quite hot which limits not only its lifetime but its applications, as well.
Other light sources have been developed including lights employing fluorescent tubes, and neon lights. Because fluorescent lights contain mercury, the lights can be a health hazard. Further, light emitting diodes and organic light emitting diodes have been developed and are used in a variety of lighting applications. More recent developments include light sources comprising an array of light emitting diodes (LEDs) mounted on a substrate. These are sometimes employed in the automotive industry as they can be mounted on curved surfaces or on a substrate that is flexible. Some applications of an array of LEDs include the ability to independently light certain diodes relative to others, mixing colors of lights, etc. See, for example, U.S. Pat. Nos. 6,520,669 and 7,075,226.
In addition to the on-off modes for most light bulbs, the more sophisticated light sources may include controllers so that a light ‘show’ can be provided. Other more mundane applications of a controlled light source may include varying wavelengths, of emitted light, dimming or brightening, and on-off. See for example U.S. Pat. No. 6,520,669; 6,050,702. Different wavelength of light are commonly referred to as color temperature derived from the wavelength associated with black body radiation.
Although many different ways exist to provide light, some problems are prevalent and certain challenges continue to exist. For example, the lifetimes of many light sources are relatively short. Some of the life expectancy issues are due to the lack of heat dissipating mechanisms in the source. Others are due to the fragility of the materials with which the sources are made.
What was needed was a light source that included cooling features allowing the light source to expand its life expectancy beyond that of other standard bulbs. Further, a light source that included means of wireless control of color temperature or color patterns was desirable. Moreover, a light source that could replace the typical household bulb that included a much extended light life as well as a more durable construction was desired. Finally, a light source that could serve as a multi-purpose appliance by allowing high-powered light use on demand or serving as a wireless internet router was also desirable.
The first objective of the present invention is to replace the ‘glass bulb’ model with a source wherein the basic structure was of material far stronger than glass;
The second objective is to provide a light source wherein the source can be wirelessly controlled to provide any of a wide range of colored light;
The third objective is to provide a light source using the highly adaptable LED to provide the light;
The fourth objective is to provide a light source wherein the heat generated is dissipated in such a way as to allow the source a longer lifetime;
The fifth objective is to provide a controllable light source wherein the light source could be in the form of a standard light bulb yet be controlled wirelessly without the appearance and presence of an outer controller;
The sixth objective is to create a light source that can function as a high power source as well as a standard light source;
The seventh objective is to create a light source with multiple functions such as serving as a wireless internet router; and
The eighth objective is to create a bulb with built in emergency lighting and fiber optic transmission of light.
The present invention is a self cooling light effects device having an adaptor for use in a standard light bulb socket. A surface of a housing with an upper portion is embedded with LEDs serving as means to generate light effects. The device further includes means to control light effects and means for cooling. Fiber optic cables and an associated light source provide further means for generating light effects.
Means to control light effects may include an electronic circuit and a logic board. The logic board is programmable for different light effects and may be removed and upgradeable. Including a wireless adaptor allows the logic board to be updated or controlled by any computer system via a preprogrammed web browser based interface.
Means for cooling may be any combination of fans, heat sinks, heat pipes, thermoelectric cooling, and a heat conductive filler. Use of a fan requires one or more apertures in the housing. The housing is preferably made of a heat conductive material to aid in the transfer of heat from heat sinks or filler. Because the logic board is the most likely source of excess heat, it is preferable that means for cooling be conductively associated with the logic board. Heat can also be transferred to the housing or outside of the housing via a heat pipe.
Other objects, features, and advantages of the present invention will be readily appreciated from the following description. The description makes reference to the accompanying drawings, which are provided for illustration of the preferred embodiment. However, such embodiment does not represent the full scope of the invention. The subject matter which the inventor does regard as his invention is particularly pointed out and distinctly claimed in the claims at the conclusion of this specification.
The present invention is a self cooling light effects device 10 formed to serve as a replacement for a standard light bulb. As shown in
The LEDs 20 may be embedded in the exterior surface 18 of the housing 12. Alternatively, as shown in
The number of LEDs 20 depend upon the desired lumens to be produced by the device 10. Means for generating light effects 24 necessarily includes the LEDs 20. For this reason, the LEDs 20 are preferably a mixture LEDs producing light of various wavelengths. The number and diversity of LEDs 20 will correspond to the number and diversity of lighting effects that can be produced by the device 10. The preferred means for generating light effects 24 also includes a plurality of illuminated fiber optic cables 30 extending from within said housing 12 to said exterior surface 18 of said housing 12. The fiber optic cables 30 are preferably illuminated by a light source 31 within said housing 12. In all preferred embodiments, a translucent or generally transparent film overlays means for generating light effects 24 to provide additional protection.
To transmit light from the fiber optic cables 30 through the housing 12, the housing 12 defines a plurality of holes 32 and each of the cables 30 is positioned to emit light from one of said holes 32. It is preferable that each of the cables 30 terminate with an optical diffuser lens 33. In the preferred embodiment, each diffuser lens 33 serves to anchor each of the cables 30 to the housing 12. Also in the preferred embodiment, the diameter of the holes are about 0.015 to about 0.025 inches and the fiber optic cables 30 terminate into diffuser lenses 33 having a diameter of 0.040 inches. It should be understood that the holes 32 and the diffuser lenses 33 may be of any diameter consistent with the diameter of the fiber optic cables 30.
The LEDs 20, light source 31, and any other means for generating light effects 24, such as, for example, a laser, are controlled by means for controlling light effects 28. The preferred means 28 includes an electronic circuit 34 having a logic board 36. The logic board 36 is programmable with at least one light effects program. In executing the at least one light effects program, the logic board 36 controls the activation of each of said LEDs 20, said light source 31, and/or other mean for generating light effects 24. The logic board 36 can execute any number of programs limited only by the number of possible light effects.
In a first embodiment, referring again to
Components of the device 10 such as the electronic circuit 34 and its connections to other components, the logic board 36, the light source 31, and the adaptor 22 produce heat. Excess heat increases the failure rate and lowers the longevity of light sources including the device 10. To decrease the amount of heat, the device 10 includes means for cooling 26 to remove heat from within the housing 12. Means for cooling 26 in the first embodiment includes a fan 40 mounted inside the housing 12. The fan 40 exchanges heated air from within the housing 12 with cooler air outside of the housing 12. To assist in transferring heat, the housing 12 of the first embodiment defines an aperture 42. It should be understood that the housing can include any number of fans and apertures necessary to sufficiently cool the device 10.
In a second embodiment of the preferred invention, shown in
In a third embodiment of the preferred embodiment, shown in
Referring again to the first embodiment in
In the first preferred embodiment seen in
In a fourth preferred embodiment shown in
Thus, the present invention has been described in an illustrative manner. It is to be understood that the terminology that has been used is intended to be in the nature of words of description rather than of limitation. Many modifications and variations of the present invention are possible in light of the above teachings. For example, the various means for cooling 26 may supplement each other or stand alone. Therefore, within the scope of the appended claims, the present invention may be practiced otherwise than as specifically described.
