DE19653253A1 - Illuminated sports field with superimposed markings for several ball games - Google Patents

Abstract

This illuminated sports field for various ball games has a variety of superimposed markings for the different sports. In this new idea, the illumination can be varied or changed such that for each sport, the respective markings become predominantly visible. Preferably the illumination selectively emphasises markings of one colour. This is achieved by filters in front of the lights selectively absorbing or transmitting colours appropriate to the markings. The markings are fluorescent and the exciting wavelength can be changed. The fluorescence is resonant. Polarisation may be employed.

Description

The invention is directed to a playing field, in particular for the field different ball games, with different on the field markings associated with different types of game and a lighting arrangement is provided above the playing field.

Playing fields of the type under consideration can be found in particular in Multipurpose sports halls that are not limited to exercising a single, be certain sports are tailored, but the staging differed licher games, especially ball games. For example fin markings for volleyball fields, tennis Fields and basketball fields. To the individual markings below To make it divisible, it is known to have a specific color for every sport to choose.

In this way, the individual markings are theoretically good are distinguishable, this is a ge in fast game mode knowing irritation of the players and the referee. Through colors blind players or referees or only in the color differentiation weakened people can no longer or such markings can hardly be kept apart. Also poses for television broadcasts there is the problem that a sharp color separation is not always guaranteed is and therefore a clear line recognition is difficult.

Proceeding from this, the object of the invention is a playing field of the type in question to be provided with markings such that the The field has certain markings for different games points, but this individually according to the type of game being played can be emphasized.

This object is achieved in that the lighting is so changeable or switchable that depending on the each game played the corresponding field marking optically can be emphasized.

In particular, it is advantageously provided that the lighting changes in this way cash or reversible that field markings of different colors be selectively highlighted.

To achieve this, the lighting fixtures can be the lighting arrangement Filter arrangements must be arranged, which correspond to the wavelength areas of certain field marking colors selectively permeable or are absorbent.

This configuration ensures that the light from the lighting arrangement appears slightly tinted depending on the selected spectral range NEN, with the corresponding color markings strongly emphasize raised and the other color markings contrast sharply will.

It is particularly advantageous that the field markings are formed by fluorescent colors and the illuminants the lighting  arrangement according to the excitation wavelengths of the fluores zenzfarben are switchable or changeable.

It can advantageously work with resonance fluorescence the, d. H. the excitation takes place with the same wavelength as the abge emitted fluorescence wavelength.

However, it is also conceivable, for example for the suggestion Ul to use traviolet radiation and so the fluorescent color choose that it radiates in the visible spectral range.

Such fluorescent dyes come in the range of inorganic Compounds some uranium compounds and the salts of e.g. B. erbium, Didym, lanthanum, etc. into consideration.

In the area of organic dyes, benzene derivatives come into consideration. If several benzene nuclei are condensed, the fluorescent light can be like desirable for the present application, in the visible Range of the spectrum. Through substitutions in the benzene Molecules can change the fluorescence spectrum, e.g. B. can by the introduction of alkyl groups a shift to the long wavy red can be achieved.

Suitable fluorescent dyes are commercially available e.g. B. to apply Screen printing advertising available.

As an alternative to color differentiation, the Erfin dung also be provided that the field markings a pola  Show risky cover, or created with polarized dyes are and in front of the lighting fixtures pivotable polarization filters are ordered.

By aligning the polarization filters in front of the lighting fixtures pern parallel to the polarization direction of the field marking highlighted each marker, for example, while another, perpendicular to this "polarized" marking remains completely dark.

Claims (6)

1. Illuminated playing field, in particular for the staging of different ball games, different types of markings being assigned to one another on the playing field, and a lighting arrangement being provided above the playing field, characterized in that the lighting arrangement can be changed or switched so that depending on the respective playing field marking can be highlighted visually for the game being played. 2. Playing field according to claim 1, characterized in that the lighting is so changeable or reversible that field mark Different colors can be highlighted selectively. 3. Playing field according to claim 2, characterized in that the light bodies are arranged upstream of the lighting arrangement, that according to the wavelength ranges of certain playing field mark tion colors are selectively permeable or absorbent. 4. Playing field according to claim 2, characterized in that the game Field markings are formed by fluorescent colors and the light body of the lighting arrangement according to the excitation Wavelengths of the fluorescent colors are switchable or changeable. 5. Playing field according to claim 4, characterized in that with Reso fluorescence is worked.   6. Playing field according to claim 1, characterized in that the game Field markings have a polarizing cover or with pola dyes are created and in front of the lighting fixtures pivotable polarization filters are arranged.