Actuating device for operating lamps

1. An actuating device for operating lamps, the device comprising:

light emitting diodes including actuatable first light-emitting diodes for generating a first white light and actuatable second light-emitting diodes for generating a blue light;

an actuator for actuating the first light-emitting diodes to generate said first white light, and also for actuating the second light-emitting diodes to generate said blue light such that only the first light-emitting diodes are switched on in a first operating state of the operating lamp and that the first light-emitting diodes and the second light-emitting diodes are switched on in a second operating state to generate a second white light, wherein the second light-emitting diodes are designed such that a general color rendering index R a and a color rendering index R 9 is greater than 70, and a color temperature in the second operating state is greater than a color temperature in the first operating state of the operating lamp.

2. An actuating device in accordance with claim 1 , wherein the first light-emitting diodes and the second light-emitting diodes are chosen to have said general color rendering index Ra greater than 90.

3. An actuating device in accordance with claim 1 , wherein:

said second light-emitting diodes radiate light in a spectral range with a maximum at 450 nm.

4. An operating lamp comprising:

light emitting diodes comprising an actuatable first set of light-emitting diodes for generating a first white light and an actuatable second set of light-emitting diodes for generating a blue light;

a light module accommodating the first set of light-emitting diodes and the second set of light-emitting diodes, and having a light exit area, said second light-emitting diodes being arranged distributed in an area of a circumferential edge of said light exit area;

an actuator means for actuating the first set of light-emitting diodes, and also for actuating the second set of light-emitting diodes such that only the first light-emitting diodes are switched on in a first operating state of the operating lamp and that the first light-emitting diodes and the second light-emitting diodes are switched on in a second operating state to generate a second white light, wherein the second light-emitting diodes are such that a general color rendering index R a and a color rendering index R 9 is greater than 70, and a color temperature in the second operating state is greater than a color temperature in the first operating state of the operating lamp.

5. An operating lamp in accordance with claim 4 , wherein the second light-emitting diodes are arranged uniformly distributed in the area of the circumferential edge of the light exit area.

6. An operating lamp in accordance with claim 4 , wherein the second light-emitting diodes are arranged adjacent to the outer, first light-emitting diodes in the circumferential direction of the light exit area, wherein two of the second light-emitting diodes are combined as twin light-emitting diodes in a common housing.

7. An operating lamp in accordance with claim 4 , wherein the first and second light-emitting diodes are commonly combined on one or more LED chips.

8. An operating lamp in accordance with claim 4 , wherein the actuator means comprises a control unit with a control selector element to set the first operating state and a control selector element to set the second operating state.

9. An operating lamp in accordance with claim 4 , wherein the first light-emitting diodes and the second light-emitting diodes are chosen for the lamp to provide said general color rendering index R a in the second operating state greater than 90.

10. An operating lamp in accordance with claim 4 , wherein:

said second light-emitting diodes radiate light in a spectral range with a maximum at 450 nm.

11. An operating lamp comprising:

a plurality of first light-emitting diodes for generating a first white light with a first general color rendering index;

a plurality of second light-emitting diodes generating a blue light, a combination of said first white light and said blue light creating a second white light, said first and second light emitting diodes being arranged to have said second white light have a second general color rendering index R a and a color rendering index R 9 that is greater than 70, said second white light having a color temperature greater than a color temperature of said first white light;

a light module accommodating said first light-emitting diodes and said second light-emitting diodes to emit the respective light in a similar direction;

an actuator for actuating said first light-emitting diodes, and also for actuating said second light-emitting diodes, said actuator selectively switching between a first operating state of the operating lamp with said first light-emitting diodes on and said second light-emitting diodes off, and a second operating state with said first light-emitting diodes and said second light-emitting diodes on.

12. An operating lamp in accordance with claim 11 , wherein:

said first and second white lights have a color temperature between 3739 and 5685.

13. An operating lamp in accordance with claim 11 , wherein:

said second light-emitting diodes radiate light in a spectral range with a maximum at 450 nm.

14. An operating lamp in accordance with claim 11 , wherein:

said second general color rendering index R a is greater than 90.