Illumination – Light source or light source support and luminescent material
Patent
1994-07-18
1997-01-28
Husar, Stephen F.
Illumination
Light source or light source support and luminescent material
362253, 362812, 40543, 116173, F21V 916
Patent
active
055972268
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a method for illuminating flags.
Flags are used to a large extent in order to mark the presence of hotels, gasoline stations, restaurants, etc. It is often desired to amplify the effect produced, by mounting several flags adjacent to one another, often hoisted on relatively high flagpoles. The intention is to make the car driver aware of the presence of a gasoline station or pull-in in good time before the car driver reaches the facility concerned. These flags can be seen relatively easily in daylight. However, it is relatively common to illuminate flags with lamps during the darker hours.
The effect of this illumination, however, is limited, because the lamps have a relatively wide angle of spread and because the flag takes-up a relatively small area of the light cone of the light beam.
Thus, the problem is that the flags are not made visible to a sufficient extent, and are therefore not noticed to a sufficient degree during the dark hours of the day.
This problem is solved by the present invention.
SUMMARY OF THE INVENTION
Accordingly, the present invention relates to a method of illuminating flags that are raised on flagpoles, particularly flags which have an advertising character and which are placed along roads and highways to advertise restaurants, hotels and gasoline stations. The method is characterized in that one or more flags which include ultralight fluorescent material is/are illuminated by one or more lamps which transmit a considerable proportion of ultraviolet light.
The invention also relates to an arrangement for illuminating flags raised on flagpoles, particularly advertisement flags of the kind placed along roads and highways adjacent restaurants, hotels, and gasoline stations. One or more flags are provided that include an ultralight fluorescent material, and one or more lamps are provided for illuminating the flags. The lamps are located in spaced relationship relative to the respective flags and are constructed to transmit a significant proportion of ultraviolet light.
BRIEF DESCRIPTION OF THE DRAWING
The invention will now be described in more detail with reference to an exemplifying embodiment thereof and also with reference to the accompanying drawing, the single FIGURE of which illustrates an illuminated flag.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
The drawing illustrative of the present invention illustrates a flag 1 which is raised on a flagpole 2 standing on the ground 3. The flags referred to are particularly of the kind which carry an advertisement and which are placed along roads in the neighbourhood of restaurants, hotels and gasoline stations. By advertisement is meant an emblem, a trademark, a so-called logotype, a name or the like which distinguishes or characterizes the facility at which the flag is raised, for instance a gasoline station or a restaurant available to the traveller.
However, the invention is not limited to flags which are erected along roads in the meaning of country roads, but can be applied to any flag which it is desired to illuminate during the dark hours.
According to the present method, one or more flags which include ultralight fluorescent material is/are illuminated by means of one or more lamps 4 which transmit a significant proportion of ultraviolet light. The lamps 4 are placed suitably on the ground, although they may also be placed on nearby buildings, so as to protect the fittings from damage, among other things.
Alternatively, the lamps may be mounted somewhat along the flagpole and be directed upwardly, or may be mounted at or close to the top of the flagpole and be directed downwards.
The lamps may suitably be of the kind which use a mercury bulb as a light source, this bulb coacting with a reflector in a manner to form a light cone 5 which is directed onto the flag or flags. The light cone 5 is shown in the drawing in broken lines. A further aspect of the invention pertains to providing the lamp or lamps located spaced apart and away from the respective flag and i
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patent: 4991537 (1991-02-01), Muramatsu
patent: 5043193 (1991-08-01), Ueda
patent: 5307251 (1994-04-01), Shaffer
Husar Stephen F.
Ultralux AB
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