Optics: motion pictures – Special effects
Patent
1995-12-12
1998-06-02
Perkey, W. B.
Optics: motion pictures
Special effects
422124, 422125, 2972173, G03B 2132, A62B 708, A47C 762
Patent
active
057608733
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a process and a device for adding odours or scents synchronously to visual and/or acoustic stimuli.
The invention relates to a process and a device for intensifying the sensorial perception of visual and/or acoustic presentations, in particular in cinemas, theaters, concert and conference halls, as well as during slide and video shows, television and radio broadcasts and the like, the audience being provided with scents corresponding to, and synchronous with, specific visual and/or acoustic events or scenes. A process and pertinent devices of this kind have been described in the applicant's German Patent Application No. P 41 35 796.5.
The present invention is primarily based on the object of improving a process and a device of this kind such that the characteristics of the scents used in the process can be perceived even better and are altered as little as possible.
SUMMARY OF THE INVENTION
This object is solved according to the invention by subjecting the scents to a scent-specific thermal treatment.
Thanks to the scent-specific thermal treatment, scents can be realized perfectly and true to nature for the first time.
Besides, it is possible by way of the invention to maintain the quality of the scents or odours used without any alteration and to avoid unwanted ageing and changes caused by the conduit system.
The invention provides a scent or aroma heating system as well as a conduit system for aroma cinemas and for projection apparatus used for cinematographic or other performances, which make it possible to provide scents exactly in correspondence with specific scenes.
SUMMARY OF THE INVENTION
According to a preferred embodiment of the process of the invention intended to intensify the sensorial perception of visual and/or acoustic presentations, the scents conveyed to the audience via a stream of carrier gas are heated to scent-specific temperatures before the carrier gas is released into the ambient air in the auditorium; said scent-specific temperatures are required in order that the perfumes and aromas may come to bear. Hence, certain scents which, after being produced, were impossible to realize because temperatures were too low can now be presented publicly for the first time.
In this process, the carrier gas is preferably heated to the scent-specific temperature, suitably before it gets into contact with the respective scent or aromatic substance. Alternatively, the carrier gas may be heated after contacting the aroma, which is preferably effected in the conduit system.
A temperature drop in the conduit system can be reliably prevented by heating the carrier gas to the scent-specific temperature just before it is released into the ambient air in the auditorium.
In order to prevent scents from adhering to the conduits and superimposing some other scent desired at that moment, the conduits are regularly purged, preferably by intermittently conveying the aroma-laden carrier gas and a purging gas through the ducts to the auditorium. The carrier gas charged with the aroma and the purging gas are suitably conveyed in pulse-like successive intervals so that a quasi permanent purging process is effected.
In a particularly favourable embodiment, the carrier gas contains helium or consists of helium. In this case, a film scent system is obtained in which helium heated to a temperature appropriate for the respective scent is used to develop the characteristics of said scent and in which the scent can also be quickly removed from the spectator's seat. In order to save helium, empty chairs in the aroma cinema are automatically cut off from the scent stream.
For reasons of cost, air--preferably compressed air--which may be additionally heated is used as purging gas.
It is important, particularly in a film scent system, to delay ageing of the aromatic substances in order to ensure the quality of the scent perceived by the audience. For this purpose, it is suggested that, in order to prevent ageing, the scents or aromas be cooled until they come into co
REFERENCES:
patent: 2540144 (1951-02-01), Stern
patent: 2562959 (1951-08-01), Stern
patent: 3628829 (1971-12-01), Heilig
patent: 3795438 (1974-03-01), Westenholz et al.
patent: 4603030 (1986-07-01), McCarthy
patent: 4629604 (1986-12-01), Spector
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