1. A lighting device comprising:
a lamp tube having two open ends;
a light engine arranged in the lamp tube;
a carrier supporting the light engine; and
two end caps closing the open ends,
wherein the lighting device further comprises a diffuser, the carrier supporting the light engine is held on the diffuser, and the diffuser is held on the inner wall of the lamp tube.
2. The lighting device according to claim 1, wherein the diffuser is configured to be elastic and rests on the inner wall of the lamp tube in a predetermined stress.
3. The lighting device according to claim 2, wherein the diffuser is a tubular structure formed by bending an elastic plate-shaped part.
4. The lighting device according to claim 3, wherein the diffuser extends over the whole longitudinal length of the lamp tube.
5. The lighting device according to claim 1, wherein the lamp tube is a glass tube.
6. The lighting device according to claim 1, wherein the carrier is a heat sink.
7. The lighting device according to claim 6, wherein the heat sink is fixed on the diffuser.
8. The lighting device according to claim 7, wherein the light engine includes a circuit board and at least one LED chip arranged on the circuit board.
9. The lighting device according to claim 8, wherein the circuit board extends over the whole longitudinal length of the lamp tube.
10. The lighting device according to claim 8, wherein the light engine is arranged in a space defined by the heat sink and the diffuser, so that light emitted by the LED chip emerges through the diffuser.
11. The lighting device according to claim 1,
wherein the diffuser includes a plate-shaped base body, which is made of a transparent and elastic material.
12. The lighting device according to claim 11, wherein the material is PC or PET material.
13. The lighting device according to claim 11, wherein a microstructure is formed on the surface of the plate-shaped base body, and the microstructure is configured to enable light that emerges through the diffuser to have uniform light distribution performance.
14. The lighting device according to claim 11, wherein a diffusant is added to the material forming the plate-shaped base body, so that emergent light through the diffuser has uniform light distribution performance.
15. The lighting device according to claim 1,
wherein a pin for insertion into a socket is formed on the end cap, wherein the pin is in electrical connection with the light engine through a lead.
16. The lighting device according to claim 15, wherein the end cap is made of an insulating material.
17. The lighting device according to claim 1,
wherein the lighting device is configured as a T5, T8, and T10 retrofit lamp.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A surgical device comprising;
a housing having a proximal end and a distal end, the housing having a channel to hold a biocompatible mixture of an electrolytic fluid;
a ring electrode coupled to the housing;
an elongated electrode adapted to be longitudinally slidable within the housing, and
having a proximal portion and a distal portion wherein the distal end of the housing is associated with the distal portion of the elongated electrode; and
a separate and independent collar slidably assembled around the housing, such that, when the elongated electrode is advanced into an opening of a treatment site within a body of a patient, the collar has a dimension that may be placed against and remain outside of the opening of the treatment site independent of a target depth of the elongated electrode into a patient,
wherein the elongated electrode and the ring electrode are adapted to cooperate to electrically induce thrombosis within the treatment site.
2. The surgical device of claim 1 wherein the ring electrode is attached to the distal end of the housing.
3. The surgical device of claim 1 wherein the housing further comprises a biocompatible fluid to promote thrombosis within the treatment site.