Stage light fixture

1. Stage light fixture comprising:

a short arc lamp adapted to emit a light beam along an optical axis;

a reflector associated to the short arc lamp so as to concentrate light beam rays substantially at a work point;

an output optical assembly, arranged at the most downstream point along the optical axis, having a focal point arranged between the short arc lamp and the output optical assembly and coinciding with the work point;

at least one color assembly comprising a plurality of color discs configured to selectively color the light beam; the color assembly being arranged between the short arc lamp and the work point, wherein each color disc is rotatable about a same rotational axis;

wherein each color disc of the plurality of color discs comprises at least one first filter and at least one second filter, the first filter being a color filter configured to transmit light radiation having wavelengths comprised in at least one first respective band;

wherein the at least one second filter is selected in the group comprising:

a hot filter, configured to reduce the color temperature of the passing-through light beam,

a cold filter configured to increase the color temperature of the passing-through light beam,

a wood filter, and

diffusing filter, configured to diffuse the passing-through light beam.

2. Stage light fixture according to claim 1 , wherein the color discs are parallel.

3. Stage light fixture according to claim 1 , wherein at least one color disc is transversal to the optical axis so as to form a first angle with a plane perpendicular to the optical axis.

4. Stage light fixture according to claim 3 , wherein the first angle is a dihedral angle that is between 6° and 10°.

5. Stage light fixture according to claim 1 , wherein the color discs are independently moved.

6. Stage light fixture according to claim 1 , wherein rotational axis is inclined with respect to the optical axis of a second angle that is between 6° and 10°.

7. Stage light fixture according to claim 1 , wherein the color assembly is arranged so as, in use, at least one portion of each color disc intersects the optical axis.

8. Stage light fixture according to claim 1 , wherein the first filter is configured to create a progressive change of color in the beam passing through it during the rotation of the respective color disc.

9. Stage light fixture according to claim 8 , wherein the first filter is at least a portion of an annular filter.

10. Stage light fixture according to claim 1 , comprising a plurality of first filters arranged in succession along an annular path and configured to transmit respective light radiations so as to create a progressive change of color in the beam passing through them during the rotation of the respective color device.

11. Stage light fixture according to claim 1 , comprising at least one dimmer arranged between the short arc lamp and the color assembly.

12. Stage light fixture according to claim 1 , comprising at least one heat-shield filter arranged between the short arc lamp and the color assembly.

13. Stage light fixture according to claim 12 , wherein the heat-shield filter is transversal to the optical axis so as to form a third angle with a plane perpendicular to the optical axis, the third angle being between 6° and 10°.

14. Stage light fixture according to claim 12 , wherein the heat-shield filter is arranged along a plane which intersects a plane comprising at least one color disc device, so as to form a fourth angle, the fourth angle being between 12° and 20°.

15. Stage light fixture according to claim 1 , comprising at least one gobos device arranged at the work point.

16. Stage light fixture comprising:

a short arc lamp adapted to emit a light beam along an optical axis;

a reflector associated to the short arc lamp so as to concentrate light beam rays substantially at a work point;

an output optical assembly, arranged at the most downstream point along the optical axis, having a focal point arranged between the short arc lamp and the output optical assembly and coinciding with the work point;

at least one color assembly comprising at least a first color disc and a second color disc each of which is configured to selectively color the light beam; the color assembly being arranged between the short arc lamp and the work point;

wherein the first color disc comprises a plurality of discrete first filters and at least two second filters, each first filter being a color filter configured to transmit light radiation having wavelengths comprised in at least one first respective band;

wherein the at least two second filters are different types of filters relative to one another and are selected from the group comprising:

a hot filter, configured to reduce the color temperature of the passing-through light beam,

a cold filter configured to increase the color temperature of the passing-through light beam,

a wood filter, and

a diffusing filter, configured to diffuse the passing-through light beam;

wherein the plurality of discrete first filters are configured to create a progressive change of color in the beam passing through it during the rotation of the respective color disc; and

wherein the second color disc comprises a plurality of color filters and at least one second filter.

17. Stage light fixture according to claim 16 , wherein a number of first filters in the first color disc is different than a number of first filters in the second color disc.

18. Stage light fixture according to claim 16 , wherein the first color disc and the second color disc are rotatable about a same rotational axis.