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Imitation flame generating apparatus and method
| Details |
Inventors: Nozawa, Hiroshi; Matsuo, Noriyuki;
Assignee: ChAotic Toys Factory Ltd. (Tokyo, JP) Honda Tsushin Kogyo Co., Ltd. (Tokyo, JP) Asiacorp International Limited (Kowloon, HK)
Primary Examiner: Vo; Tuyet Thi
Assistant Examiner:
Attorney, Agent or Firm: Dickstein Shapiro Morin & Oshinsky LLP
A space that closely approximates the state of an actual flame is reproduced without depending on temporal periods. Namely, by reproducing a spatiotemporal pattern of a flame, the light source can be caused to emit warm light, whereby a compact and inexpensive imitation flame generating apparatus is provided. The imitation flame generating apparatus 1 comprises a light source 10 and a control device 40 for controlling the output of electric current to the light source 10. The control device 40 comprises computation means 41 for computing a spatiotemporal pattern of the flame using a coupled map lattice, and output means 42 for outputting the electric current in accordance with the thus computed spatiotemporal pattern of the flame. |
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DETAILED DESCRIPTION The light produced by the lighting apparatus that emits light with periodicity is monotonous.
Randomly emitted illumination is quite dissimilar from the actual, flickering light produced by a lit candle.
The lighting apparatus that emits light with a 1/f fluctuation merely operates the light source at 1/f periods, which is a characteristic obtained by arranging the power spectrum using a temporal frequency component.
Thus, in this apparatus, it cannot be said that actual combustion is accurately represented.
Further, in the apparatus comprising a plurality of light sources that utilize the 1/f fluctuation, since the light sources are turned on with the same timing without mutually influencing one another, and since the flame is expressed in a virtual space, the peculiar warmth of a flame in a real space cannot be produced in the virtual space even if the light sources have different amounts of light.
In yet another example of an illuminating apparatus, a light source is operated in accordance with data based on physical property changes in natural phenomena (such as the flickering of flame or sound).
In this apparatus, since the captured data is used in a repetitive manner, the data is periodic in the long run such that it cannot be said that the flickering of a flame, which is irregular, is accurately reproduced.
Particularly, where chaotic analysis is employed, the analysis is based on a temporal topological space, which means that the light source is turned on using time as a variable.
In this case, only temporal fluctuation is expressed and a flame in a real space is not expressed.
Thus, when a plurality of light sources are turned on, although they vary in time, they cannot be turned on such that one light source influences another.
Further, in order to accurately simulate a flame, a large data storage volume must be provided, which would lead to an increase in the size of the apparatus and in manufacturing cost.
In view of the aforementioned problems of the prior art, it is the object of the invention to provide a compact and inexpensive imitation flame generating apparatus capable of emitting warm light by reproducing a space that is extremely close to an actual flame, i
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Light Fixtures 
