Irradiation device

1. Irradiating apparatus for technical use, comprising a large number of stretched-out radiation sources emitting in or between UV and IR ranges and a large number of bent or folded sheet metal main reflector segments that each have a shape adapted to that of a respective one of the radiation sources, the main reflector segments are formed as separate main reflectors and are held, singly replaceable and independently of the radiation sources, in a radiation source housing.

2. Apparatus according to claim 1 , the main reflectors to have a length essentially corresponding to a length of a straight section of the radiation sources and socket segments of the radiation sources are arranged beyond ends of the main reflectors in the radiation source housing.

3. Apparatus according to claim 1 , wherein the main reflectors are secured in the radiation source housing, which can be opened without tools.

4. Apparatus according to claim 1 , wherein the main reflectors each have the form of a channel inscribed into a parallelepiped with a W or a V profile.

5. Apparatus according to claim 1 , wherein the radiation sources have socket segments at sides thereof opposite a line of longitudinal extension that are offset and vertical to this line and end reflector segments are assigned to the socket segments which, for a large number of radiation sources, are jointly formed by end reflectors bent or folded out of metal sheet that are secured separately from the main reflectors in the radiation source housing.

6. Apparatus according to claim 5 , wherein the radiation sources consist of NIR sources with a radiation source body bent towards the socket segment and the end reflectors have a matching trough shape with reflector walls at different heights or slanting angles.

7. Apparatus according to claim 5 , wherein outer walls of the radiation sources are shaped in such a way and the main reflectors held in such a way in the radiation source housing that initial cooling air passages are formed between them.

8. Apparatus according to claim 7 , wherein second cooling air passages are formed in the end reflectors to cool the radiation source ends.

9. Apparatus according to claim 1 , wherein the radiation source housing comprises a multiple-part radiation source housing, at least a major part of which is made of sheet metal, which has a radiation source holder part and an air cooler part linked thereto, which can be removed.

10. Apparatus according to claim 9 , wherein the radiation source holder part and the air cooler part are each formed as parallelepipeds having a same length and width.

11. Apparatus according to claim 9 , wherein the air cooler part accommodates a blower fan and has first and second main surfaces opposite one another, while the radiation source holder part is fitted on a first main surface thereof and an air filter plate is fitted on a second main surface thereof.

12. Apparatus according to claim 11 , wherein between the blower fan and the air filter plate there is a conical wall segment, or a wall segment that is shaped like a truncated pyramid that is funnelled towards the blower fan.

13. Apparatus according to claim 9 , wherein the air cooler part accommodates a funnel-shaped duct that supports at least one blower fan and has first and second main surfaces located opposite one another, while the radiation source holder part is fitted on the first main surface and the second main surface is closed.

14. Apparatus according to claim 9 , wherein holders are provided for sockets of the radiation sources in the radiation source holder part.