Laser diode devices
View Patent ↗A laser diode device including a housing having a mounting area in a cavity of the housing, at least one laser diode chip that emits electromagnetic radiation through a radiation exit area during operation, at least one covering element which is transmissive, at least in places, to the electromagnetic radiation generated by the laser diode chip during operation, and a deflection element, that directs at least part of the electromagnetic radiation generated by the laser diode chip during operation in a direction of the covering element, wherein the radiation exit area of the laser diode chip runs substantially transversely or substantially perpendicularly with respect to the mounting area and/or with respect to the covering element, the covering element connects to the housing, and the covering element tightly closes the housing.
1. A laser diode device comprising:
a housing having a mounting area in a cavity of the housing,
at least one laser diode chip that emits electromagnetic radiation through a radiation exit area during operation,
at least one covering element which is transmissive, at least in places, to the electromagnetic radiation generated by the laser diode chip during operation, and
a deflection element, that directs at least part of the electromagnetic radiation generated by the laser diode chip during operation in a direction of the covering element,
wherein the radiation exit area of the laser diode chip runs substantially transversely or substantially perpendicularly with respect to the mounting area and/or with respect to the covering element,
the covering element connects to the housing and tightly closes the housing such that a leakage rate is at most 5*10^(−8) (Pa*m^3)/s.
2. The laser diode device according to claim 1 , wherein the at least one laser diode chip is not potted.
3. The laser diode device according to claim 1 , wherein the covering element has an enclosure surrounding a window element in a frame-like manner, and the window element is transmissive at least to part of the electromagnetic radiation generated by the laser diode chip during operation.
4. The laser diode device according to claim 3 , wherein the enclosure is formed with a metal and the window element comprises at least one of or consists of at least one of glass, sapphire and ceramic.
5. The laser diode device according to claim 3 , wherein the enclosure connects to the housing by soldering or welding.
6. The laser diode device according to claim 1 , wherein at least one optical element of luminescence conversion element, lens or diffusing element is fixed to the covering element.
7. The laser diode device according to claim 1 , wherein the deflection element is formed by one of or comprises one of a mirror or a prism.
8. The laser diode device according to claim 1 , further comprising at least one heat-conducting element arranged between the mounting area and the at least one laser diode chip.
9. The laser diode device according to claim 8 , wherein a heat-conducting element is assigned one-to-one to each laser diode chip.
10. The laser diode device according to claim 1 , wherein the housing is formed with a metallic material.
11. The laser diode device according to claim 1 , wherein the housing has at least one side wall which runs substantially obliquely or substantially perpendicularly with respect to the mounting area, and the side wall has at least one opening through which is led an electrical connection element to which the laser diode chip is electrically conductively connected.
12. The laser diode device according to claim 1 , wherein a beam shaping optical element is arranged between the radiation exit area of the at least one laser diode chip and the deflection element.
13. The laser diode device according to claim 1 , further comprising at least two laser diode chips, wherein radiation exit areas of two of the laser diode chips face one another and at least one deflection element is arranged between the two radiation exit areas.
14. The laser diode device according to claim 13 , comprising exactly one deflection element.
15. Laser diode device comprising:
a housing having a mounting area in a cavity of the housing,
at least two laser diode chips which emit electromagnetic radiation through a radiation exit area during operation,
at least one covering element which is transmissive, at least in places, to the electromagnetic radiation generated by the laser diode chips during operation,
a deflection element, which directs at least part of the electromagnetic radiation generated by the laser diode chips during operation in the direction of the covering element,
the radiation exit areas of the laser diode chips run transversely or perpendicularly with respect to the mounting area and/or with respect to the covering element,
the covering element is connected to the housing, and
the covering element tightly closes the housing,
wherein the radiation exit areas of two of the laser diode chips face one another and at least one deflection element is arranged between the two radiation exit areas.
16. The laser diode device according to claim 2 , wherein the covering element has an enclosure surrounding a window element in a frame-like manner, and the window element is transmissive at least to part of the electromagnetic radiation generated by the laser diode chip during operation.
17. The laser diode device according to claim 15 , wherein the covering element has an enclosure surrounding a window element in a frame-like manner, and the window element is transmissive at least to part of the electromagnetic radiation generated by the laser diode chip during operation.
18. The laser diode device according to claim 15 , wherein the covering element tightly closes the housing such that a leakage rate is at most 5*10^(−8) (Pa*m^3)/s.
19. The laser diode device according to claim 15 , comprising exactly one deflection element.
20. The laser diode device according to claim 15 , wherein a heat-conducting element is assigned one-to-one to each laser diode chip.