Surgical light having means for measuring distance

1. A surgical light comprising a light unit which has a plurality of light sources individually accommodated in a housing, wherein each light source is arranged and oriented in such way that the light source produces a light beam in an energized state, an anchoring element which is prepared for fastening to a ceiling, a wall or a floor of a room, a retaining arm system which connects the light unit slidably and/or pivotably to the anchoring element, and a position detection device that has a distance detection sensor is arranged and designed in such way that, in the operating state, the distance detection sensor determines a distance of a reference section of the light unit from the ceiling, wherein the housing has a curved extension, with the light sources producing light beams which are emitted toward a joint light emission side of the housing, and the distance detection sensor which is arranged on an upper side of the housing faces away from the light emission side.

2. The surgical light according to claim 1 , wherein the first distance detection sensor is arranged in the area of a pivot axis about which the light unit is pivoted relative to the retaining arm system.

3. The surgical light according to claim 2 , wherein the position detection device includes a second distance detection sensor provided on the retaining arm system.

4. The surgical light according to claim 1 , wherein the position detection device includes a second distance detection sensor provided on the retaining arm system.

5. The surgical light according to claim 4 , wherein the second distance detection sensor is arranged on a universal joint of the retaining arm system.

6. The surgical light according to claim 1 , wherein the position detection device includes an angle detection sensor which is designed and arranged such that it detects an angle of a supporting arm portion of the retaining arm system arranged pivotably relative to the anchoring element.

7. The surgical light according to claim 1 , wherein the position detection device is connected for data transmission to a control unit arranged in the housing of the light unit.

8. The surgical light according to claim 7 , wherein the control unit is coupled to the light sources to control the light sources such that at least one light characteristic of the light unit can be adjusted in response to a control instruction output by the control unit.

9. The surgical light according to claim 8 , wherein the control unit is programmed so that it adjusts the at least one light characteristic in response to the distance between the reference section and the ceiling determined by means of the position detection device in an operating state of the surgical light.

10. The surgical light according to claim 7 , wherein the control unit is programmed so that it adjusts the at least one light characteristic in response to the distance between the reference section and the ceiling determined by means of the position detection device in an operating state of the surgical light.

11. The surgical light according to claim 1 , wherein the position detection device includes an angle detection sensor which is designed and arranged such that it detects an angle of a supporting arm portion of the retaining arm system arranged pivotably relative to the anchoring element.

12. An apparatus comprising:

a light unit comprising a plurality of light sources individually accommodated in a housing, wherein each light source is arranged and oriented to produce a light beam in an energized state;

an anchoring element configured to be fastened to a surface;

a retaining arm system configured to connect the light unit slidably and/or pivotably to the anchoring element; and

a position detection device configured to determine a distance of a reference section of the light unit or of the retaining arm system from the surface,

wherein the housing has a curved extension, with the light sources producing light beams which are emitted toward a joint light emission side of the housing, and a distance detection sensor which determines a distance of a reference section of the light unit from the ceiling and is arranged on an upper side of the housing faces away from the light emission side.

13. The apparatus of claim 12 , wherein the position detection device comprises a second distance detection sensor provided on the retaining arm system, wherein the second distance detection sensor is configured to detect a second height adjustment of the light unit.

14. The apparatus of claim 13 , wherein the position detection device comprises an angle detection sensor configured to detect an angle of a supporting arm portion of the retaining arm system arranged pivotably relative to the anchoring element.

15. An apparatus comprising:

a light unit comprising a plurality of light sources individually accommodated in a housing;

an anchoring element configured to be fastened to a surface;

a retaining arm system configured to connect the light unit slidably and/or pivotably to the anchoring element; and

a position detection device configured to determine a distance of a reference section of the light unit from the surface,

wherein the housing has a curved extension, with the light sources producing light beams which are emitted toward a joint light emission side of the housing, and a distance detection sensor which determines a distance of a reference section of the light unit from the ceiling and is arranged on an upper side of the housing faces away from the light emission side.