1. A red fluorescence conversion medium comprising;
a light-transmitting medium,
a first perylene fluorescent dye that emits red fluorescence, and
a second fluorescent dye that absorbs light in a ultraviolet to blue region to emit fluorescence,
wherein the first perylene fluorescent dye absorbs light containing the fluorescence emitted by the second fluorescent dye to emit fluorescence.
2. The red fluorescence conversion medium according to claim 1, further comprising a third fluorescent dye of which the absorption edge of light is a longer wavelength than the absorption edge of light of the second fluorescent dye,
wherein the second fluorescent dye andor the third fluorescent dye areis a perylene fluorescent dye.
3. The red fluorescence conversion medium according to claim 1 or 2, wherein a relationship between a maximum value of an optical density OD1 in a wavelength region of 600 nm to 700 nm, and a maximum value of an optical density OD2 in a wavelength region of 400 nm to 500 nm is OD2OD1>1.5.
4. The red fluorescence conversion medium according to any one of claims 1 to 3, further comprising a light-scatteirng material.
5. A color conversion substrate comprising the red conversion fluorescence medium according to any one of claims 1 to 4 on a transparent substrate.
6. The color conversion substrate according to claim 5, further comprising a green fluorescence medium.
7. A light-emitting apparatus comprising the red fluorescence conversion medium according to any one of claims 1 to 4 and an exciting-light source,
wherein light emitted from the exciting-light source has one or more emission peaks in a wavelength region of 400 nm to 500 nm.
8. The light-emitting apparatus according to claim 7, wherein fluorescence emitted from the red fluorescence conversion medium and light emitted from the exciting-light source are mixed to emit white light.
9. The light-emitting apparatus according to claim 7 or 8, wherein the exciting-light source is a light source converting electric energy to light.
10. The light-emitting apparatus according to claim 7 or 8, wherein the exciting-light source is natural light.
11. A light-emitting apparatus comprising the exciting-light source and the color conversion substrate according to claim 5 or 6.
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 method of operating a mobile communication terminal for a handover rejection in a portable Internet system, said method comprising:
transmitting a handover request message to a serving base station and receiving a response message corresponding to the handover request message from the serving base station, said handover request message requesting a handover operation to at least one target base station;
checking whether the received response message includes contents regarding the handover rejection;
extracting at least one of terminal action instruction information and rejection reason information corresponding to the handover rejection from the response message according to a result of the checking step; and
executing an action according to the extracted information.
2. The method of claim 1, wherein at the least one of the terminal action instruction information and the rejection reason information are set in a reserved field of the response message.
3. The method of claim 1, wherein if the extracted information is the terminal action instruction information, the mobile communication terminal executes a specific action indicated by the terminal action instruction information.
4. The method of claim 1, wherein if the terminal action instruction information is a retransmission instruction of the handover request message, the mobile communication terminal transmits a handover request message in which a target base station different from that included in the transmitted handover request message is set with reference to former scan information.
5. The method of claim 1, wherein if the terminal action instruction information is a rescan instruction including the target base station set in the transmitted handover request message, the mobile communication terminal executes a scanning operation by including the target base station.
6. The method of claim 1, wherein if the terminal action instruction information is a rescan instruction excluding the target base station set in the transmitted handover request message, the mobile communication terminal executes a scanning operation by excluding the target base station.
7. The method of claim 1, wherein if the terminal action instruction information is a handover instruction into a random target base station, an initial network entry is executed via a target base station randomly selected by the mobile communication terminal.
8. The method of claim 1, wherein if the terminal action instruction information is a communication maintain instruction with the serving base station, the mobile communication terminal releases the handover request and maintains a data communication with the serving base station.
9. The method of claim 1, wherein the rejection reason information comprises at least one of a capacity excess of the target base station, an impossible communication between the base station and the target base station, and a capacity excess of all base stations due to an overload on an entire network.
10. A mobile communication terminal, comprising:
a transceiver configured to transmit a handover request message to a serving base station and to receive a response message corresponding to the transmitted handover request message, said handover request message requesting a handover operation to at least one target base station;
an information extracting unit configured to check whether the received response message includes contents regarding the handover rejection, and to extract at least one of terminal action instruction information and rejection reason information corresponding to the handover rejection from the response message according to a result of the checking; and
a control unit configured to output a control signal to execute an action according to the extracted information.
11. The mobile communication terminal of claim 10, wherein at least one of the terminal action instruction information and the rejection reason information are set in a reserved field of the response message.
12. The mobile communication terminal of claim 10, wherein if the extracted information is the terminal action instruction information, the control unit executes a specific action indicated by the terminal action instruction information.
13. The mobile terminal of claim 10, wherein if the terminal action instruction information is a retransmission instruction of the handover request message, the transceiver transmits a handover request message in which a target base station different from that included in the transmitted handover request message is set with reference to a former scanning operation.
14. The mobile communication terminal of claim 10, further comprising a scanning module configured to scan neighboring base stations according to the control signal of the control unit.
15. The mobile terminal of claim 14, wherein if the terminal action instruction information is a rescan instruction including the target base station set in the transmitted handover request message, the scanning module performs a scanning operation by including the target base station, and
wherein if the terminal action instruction information is a rescan instruction excluding the target base station set in the transmitted handover request message, the scanning module performs a scanning operation by excluding the target base station.
16. The mobile terminal of claim 10, wherein if the terminal action instruction information is a handover instruction into a random target base station, the control unit selects a random target base station and the transceiver transmits a handover request message to the random target base station, and
wherein if the terminal action instruction information is a communication maintain instruction with the serving base station, the control unit releases the handover request and maintains a data communication with the serving base station, and
17. The mobile terminal of claim 10, wherein the rejection reason information comprises at least one of a capacity excess of the target base station, an impossible communication between the base station and the target base station, and a capacity excess of all base stations due to an overload on an entire network.
18. A method of rejecting a handover in a portable Internet system, said method comprising:
receiving a handover request message from a mobile communication terminal, said handover request message requesting a handover to a target base station;
deciding whether or not the handover to the target base station is possible;
if the handover to the target base station is not possible and is to be rejected, generating a response message, which includes at least one of terminal action instruction information indicating an action to be taken by the mobile communication terminal and rejection reason information including at least one reason why the handover is rejected; and
transmitting the generated response message to the mobile terminal.
19. The method of claim 18, wherein the deciding step decides whether or not the handover to the target base station is possible based on at least one of previously stored information and information obtained from a communication with the target base station.
20. The method of claim 18, wherein at least one of the terminal action instruction information and the rejection reason information are set in a reserved field of the response message.