1. A method for manufacturing a light-emitting material comprising the steps of:
forming a first layer containing a first luminescence center element in a container;
forming a second layer containing a host material adjacent to the first layer in the container; and
doping the second layer with the first luminescence center element by performing heat treatment to the first layer and the second layer in the container.
2. The method for manufacturing a light-emitting material according to claim 1, wherein the heat treatment is performed at a temperature greater than or equal to 700\xb0 C. and less than or equal to 1500\xb0 C.
3. The method for manufacturing a light-emitting material according to claim 1, wherein the heat treatment is performed under a sulfidation-gas atmosphere.
4. The method for manufacturing a light-emitting material according to claim 1, wherein the first luminescence center element is at least one selected from the group consisting of copper, silver, gold, manganese, terbium, europium, thulium, cerium, praseodymium, samarium, erbium, aluminum, chlorine, and fluorine.
5. The method for manufacturing a light-emitting material according to claim 1, wherein the host material is at least one selected from the group consisting of zinc sulfide, cadmium sulfide, calcium sulfide, yttrium sulfide, gallium sulfide, strontium sulfide, barium sulfide, zinc oxide, yttrium oxide, aluminum nitride, gallium nitride, indium nitride, zinc selenide, zinc telluride, barium-aluminum sulfide, calcium-gallium sulfide, strontium-gallium sulfide, and barium-gallium sulfide.
6. The method for manufacturing a light-emitting material according to claim 1, wherein the first layer contains a second luminescence center element different from the first luminescence center element.
7. The method for manufacturing a light-emitting material according to claim 6, wherein a light-emission color from the first luminescence center element and a light-emission color from the second luminescence center element are in a relation of a complementary color.
8. A method for manufacturing a light-emitting material comprising the steps of:
forming a first layer containing a first luminescence center element in a container;
forming a second layer containing a host material over the first layer in the container; and
doping the second layer with the first luminescence center element by performing heat treatment to the first layer and the second layer in the container.
9. The method for manufacturing a light-emitting material according to claim 8, wherein the heat treatment is performed at a temperature greater than or equal to 700\xb0 C. and less than or equal to 1500\xb0 C.
10. The method for manufacturing a light-emitting material according to claim 8, wherein the heat treatment is performed under a sulfidation-gas atmosphere.
11. The method for manufacturing a light-emitting material according to claim 8, wherein the first luminescence center element is at least one selected from the group consisting of copper, silver, gold, manganese, terbium, europium, thulium, cerium, praseodymium, samarium, erbium, aluminum, chlorine, and fluorine.
12. The method for manufacturing a light-emitting material according to claim 8, wherein the host material is at least one selected from the group consisting of zinc sulfide, cadmium sulfide, calcium sulfide, yttrium sulfide, gallium sulfide, strontium sulfide, barium sulfide, zinc oxide, yttrium oxide, aluminum nitride, gallium nitride, indium nitride, zinc selenide, zinc telluride, barium-aluminum sulfide, calcium-gallium sulfide, strontium-gallium sulfide, and barium-gallium sulfide.
13. The method for manufacturing a light-emitting material according to claim 8, wherein the first layer contains a second luminescence center element different from the first luminescence center element.
14. The method for manufacturing a light-emitting material according to claim 13, wherein a light-emission color from the first luminescence center element and a light-emission color from the second luminescence center element are in a relation of a complementary color.
15. A method for manufacturing a light-emitting material comprising the steps of:
forming a first layer containing a first luminescence center element in a container;
forming a second layer containing a second luminescence center element and a host material adjacent to the first layer in the container; and
doping the second layer with the first luminescence center element by heating the first layer and the second layer in the container.
16. The method for manufacturing a light-emitting material according to claim 15, wherein the heat treatment is performed at a temperature greater than or equal to 700\xb0 C. and less than or equal to 1500\xb0 C.
17. The method for manufacturing a light-emitting material according to claim 15, wherein the heat treatment is performed under a sulfidation-gas atmosphere.
18. The method for manufacturing a light-emitting material according to claim 15, wherein the first luminescence center element is at least one selected from the group consisting of copper, silver, gold, manganese, terbium, europium, thulium, cerium, praseodymium, samarium, erbium, aluminum, chlorine, and fluorine.
19. The method for manufacturing a light-emitting material according to claim 15, wherein the host material is at least one selected from the group consisting of zinc sulfide, cadmium sulfide, calcium sulfide, yttrium sulfide, gallium sulfide, strontium sulfide, barium sulfide, zinc oxide, yttrium oxide, aluminum nitride, gallium nitride, indium nitride, zinc selenide, zinc telluride, barium-aluminum sulfide, calcium-gallium sulfide, strontium-gallium sulfide, and barium-gallium sulfide.
20. The method for manufacturing a light-emitting material according to claim 15, wherein the first layer contains a third luminescence center element different from the first luminescence center element.
21. The method for manufacturing a light-emitting material according to claim 20, wherein a light-emission color from the first luminescence center element, a light-emission color from the second luminescence center element and a light-emission color from the third luminescence center element are in a relation of a complementary color.
22. A light-emitting element comprising:
a pair of electrodes;
a light-emitting layer between the pair of electrodes and comprising:
a binder; and
a plurality of particles of a light-emitting material which contains a first luminescence center element,
wherein the plurality of particles have different concentrations of the first luminescence center element.
23. The light-emitting element according to claim 22 further comprising an insulating layer between the pair of electrodes.
24. The light-emitting element according to claim 22, wherein the insulating layer comprises at least one selected from the group consisting of yttrium oxide, titanium oxide, aluminum oxide, hafnium oxide, tantalum oxide, silicon oxide, barium titanate, strontium titanate, lead titanate, silicon nitride, and zirconium oxide.
25. The light-emitting element according to claim 22, wherein the first luminescence center element is at least one selected from the group consisting of copper, silver, gold, manganese, terbium, europium, thulium, cerium, praseodymium, samarium, erbium, aluminum, chlorine, and fluorine.
26. The light-emitting element according to claim 22,
wherein the light-emitting material contains a second luminescence center element,
wherein the second luminescence center element is at least one selected from the group consisting of copper, silver, gold, manganese, terbium, europium, thulium, cerium, praseodymium, samarium, erbium, aluminum, chlorine, and fluorine, and
wherein the second luminescence center element is different from the first luminescence center element.
27. The light-emitting element according to claim 22, wherein the light-emitting material comprises a host material doped with the first luminescence center element.
28. The light-emitting element according to claim 27,
wherein the host material is at least one selected from the group consisting of zinc sulfide, cadmium sulfide, calcium sulfide, yttrium sulfide, gallium sulfide, strontium sulfide, barium sulfide, zinc oxide, yttrium oxide, aluminum nitride, gallium nitride, indium nitride, zinc selenide, zinc telluride, barium-aluminum sulfide, calcium-gallium sulfide, strontium-gallium sulfide, and barium-gallium sulfide.
29. A light-emitting device includes the light-emitting element according to claim 22, further comprising a control means for controlling light emission of the light-emitting element.
30. An electronic device comprising the light-emitting element according to claim 22, further comprising a control means for controlling light emission of the light-emitting element.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A pilot authentication system comprising:
a processor located in an aircraft and connected to an avionics computer of the aircraft;
a plurality of sensors connected to the processor and located proximal to the pilot; and
a transceiver connected to the processor,
wherein the processor monitors the plurality of sensors and the avionics computer, determines whether an alert condition is present, and sends an alert signal over the transceiver in response to the alert condition.
2. The system of claim 1, further comprising:
a base station;
a second transceiver connected to the base station; and
an alarm system connected to the base station,
wherein the second transceiver receives the alert signal, the base station processes the alert signal, and the base station activates the alarm system in response to the alert signal.
3. The system of claim 1, wherein the alert condition is triggered by an unauthorized pilot controlling the aircraft.
4. The system of claim 1, wherein the alert condition is triggered by physical distress experienced by the pilot.
5. The system of claim 1, wherein the alert condition is triggered by the aircraft flying unattended.
6. The system of claim 1, wherein the plurality of sensors includes at least one fingerprint sensor.
7. The system of claim 6, wherein the at least one fingerprint sensor scans at least one fingerprint of an individual controlling the aircraft.
8. The system of claim 7, wherein the at least one fingerprint is compared to a database of authorized fingerprints to determine if the pilot is authorized to control the aircraft, said database being located in the processor.
9. The system of claim 8, wherein the database of authorized fingerprints can be remotely updated to selectively add and delete digitized fingerprints of individuals authorized to control the aircraft.
10. The system of claim 1, wherein the plurality of sensors includes at least one biometric sensor.
11. The system of claim 10, wherein the at least one biometric sensor monitors the heart rate of the pilot.
12. The system of claim 10, wherein the at least one biometric sensor monitors the body temperature of the pilot.
13. The system of claim 1, wherein the processor contains a threshold value corresponding to a maximum time period for which the controls of the aircraft can be left unattended.
14. The system of claim 2, wherein the base station further comprises a master database of digitized fingerprints of individuals authorized to control at least one aircraft.
15. The system of claim 14, wherein the master database can be updated to selectively add or delete digitized fingerprints of additional individuals authorized to control at least one aircraft.
16. The system of claim 15, wherein the processor can be updated with records from the master database.
17. A method of authenticating a pilot comprising:
providing a fingerprint database of individuals authorized to control an aircraft;
scanning at least one fingerprint of the pilot at the controls of the aircraft;
comparing the at least one fingerprint to the database of individuals authorized to control the aircraft; and
in response to a negative comparison,
generating an alert signal in a processor in the aircraft; and
transmitting the alert signal from the aircraft to a ground-based monitoring system.
18. The method of claim 17 further comprising:
receiving the alert signal at the ground-based monitoring system;
processing the alert signal; and
activating an alert system in response to the alert signal.
19. The method of claim 17 further comprising:
receiving the alert signal at the ground-based monitoring system;
extracting at least one fingerprint of the pilot from the alert signal;
storing the at least one fingerprint in a storage means at the ground-based system; and
alerting law enforcement authorities.