1. A street lamp for providing safe driving information, the street lamp comprising:
a main illumination unit that illuminates a road;
a vehicle reception unit that receives an accident occurrence signal or a malfunction occurrence signal of a disabled vehicle;
a control unit that generates an accident recognition signal or a malfunction recognition signal depending on whether the accident occurrence signal is received or the malfunction occurrence signal is received, the accident recognition signal and the malfunction recognition signal being generated to be distinguishable from each other;
a vehicle transmission unit that selectively transmits the accident recognition signal or the malfunction recognition signal to vehicles positioned ahead of or behind an accident spot or a malfunction spot;
a street lamp transmission that selectively transmits the accident recognition signal or the malfunction recognition signal to neighboring street lamps ahead and behind with respect a vehicle running direction; and
a street lamp reception unit that receives the accident recognition signal or the malfunction recognition signal from the neighboring street lamps ahead and behind with respect a vehicle running direction,
wherein the accident recognition signal or the malfunction recognition signal received through the street lamp reception unit is selectively transmitted to the neighboring street lamps ahead and behind with respect to the running direction of the vehicle through the street lamp transmission unit after subtracting 1 from a value of the accident recognition signal or the malfunction recognition signal.
2. The street lamp of claim 1, further comprising:
an illumination control unit that outputs different driving signals depending on whether the accident occurrence signal is received or the malfunction occurrence signal is received; and
a warning lamp that emits light of a color corresponding with a driving signal output from the illumination control unit.
3. The street lamp of claim 1, wherein, when an emergency bell provided at a lower side of a street lamp post is pushed, the control unit transmits the accident recognition signal or the malfunction recognition signal through the vehicle transmission unit and the street lamp transmission unit.
4. The street lamp of claim 3, further comprising:
a control center communication unit that communicates with a traffic regulating center server to receive an audio signal and an emergency signal; and
an audio transmission unit that transmits the audio signal to the vehicles,
wherein according to the emergency signal, the warning lamp is caused to blink on and off with a color which is different from a color at the time of receiving the accident occurrence signal or the malfunction occurrence signal.
5. The street lamp of claim 1, further comprising:
a broadcast reception unit that receives an Internet broadcast or a radio frequency; and
a broadcast transmission unit that transmits the broadcast signal received through the broadcast reception unit to the vehicles to inform drivers of a traffic situation of the road where the vehicles currently run.
6. A system for providing safe driving information using a street lamp, the system comprising:
the street lamp for providing safe driving information; and
a vehicle equipment part,
wherein the vehicle equipment part comprises:
an accident sensing unit provided in a vehicle to sense accident occurrence;
an wireless transmission unit that, when the accident occurrence is sensed by the accident sensing unit, transmits an accident occurrence signal to the vehicle reception unit of the street lamp;
an wireless reception unit that receives an accident recognition signal transmitted through the vehicle transmission unit of the street lamp;
an alarm unit that, when the wireless reception unit receives the accident recognition signal, notifies a driver of the accident occurrence; and
an emergency button to be capable of being selected by a driver when a vehicle has malfunction, and
wherein, when the emergency button is pushed, a malfunction occurrence signal is transmitted to the vehicle reception unit of the street lamp for providing safe driving information through the wireless transmission unit.
7. The system of claim 6, wherein the vehicle equipment part further comprises:
an audio reception unit that notifies the traffic information of the corresponding road transmitted through the audio transmission unit of the street lamp for providing safe driving information; and
a speaker that reproduces the traffic information received through the audio reception unit.
8. The system of claim 7, wherein the vehicle equipment part further comprises:
a cancel button that is capable of cancelling the accident occurrence signal or the malfunction occurrence signal after receiving, through the audio reception unit, the confirmation audio signal received by the control unit.
9. The system of claim 8, wherein the vehicle equipment part further comprises:
an accident confirmation unit that outputs an audio signal to confirm whether the accident has occurred through the speaker when the signal sensed by the accident sensing unit is lower than a reference signal, senses whether the cancel button is pushed, and cancels the accident occurrence signal when the cancel button is selected.
10. A street lamp for providing safe driving information, the street lamp comprising:
a main illumination unit that illuminates a road;
a vehicle reception unit that receives an accident occurrence signal or a malfunction occurrence signal of a disabled vehicle;
a control unit that generates an accident recognition signal or a malfunction recognition signal depending on whether the accident occurrence signal is received or the malfunction occurrence signal is received, the accident recognition signal and the malfunction recognition signal being generated to be distinguishable from each other,
wherein the control unit transmits a confirmation audio signal that confirms whether the received accident signal or malfunction signal is true or false though the audio transmission unit, and when a cancel signal is received within a predetermined length of time after transmitting the confirmation audio signal, the control unit nullifies the received accident signal or malfunction signal; and
a vehicle transmission unit that selectively transmits the accident recognition signal or the malfunction recognition signal to vehicles positioned ahead of or behind an accident spot or a malfunction spot.
11. The street lamp of claim 10, wherein the accident signal or the malfunction signal is nullified before or after transmitting the accident recognition signal or the malfunction recognition signal.
This change was needed for a \u201crequirement\u201d by the PTO that a claim cannot depend from a subsequent claim.
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 pulsed polarimeter for conducting remote, non-perturbative diagnostic measurements of inducing fields of a medium demonstrating induced optical activity, the pulse polarimeter comprising:
a light source configured to emit a polarized light pulse having sufficiently narrow spatial extent and at a prescribed wavelength;
a light gathering optical system including:
a light gathering optic having a optic axis directed toward the medium and positioned so that a predetermined solid angle of an emission from the medium is collected and collimated into a collimated emission beam, wherein the light gathering optic preserves the polarization state of the emission;
a directional coupler configured to make coincident the propagation direction of the polarized light pulse with the optic axis of the light gathering optic and direct the polarized light pulse toward the medium; and
a polarization detection system configured to measure the intensity and determine the polarization state of the collimated emission beam continuously in time as the polarized light pulse transits the medium, wherein the intensity and polarization state can be used to determine the inducing fields.
2. The pulsed polarimeter claim 1 wherein the light gathering optical system further comprises a collimating optic configured to collimate the emission from the light gathering optic into the collimated emission beam.
3. The pulsed polarimeter of claim 1 wherein the light source further comprises one or more of:
a laser;
a coherent laser; and
an incoherent light source.
4. The pulsed polarimeter of claim 1 wherein the polarized light pulse emitted from the light source further comprises one or more of:
linearly polarized light;
circularly polarized light; and
elliptically polarized light.
5. The pulsed polarimeter of claim 1 wherein the polarized light pulse emitted from the light source is frequency modulated.
6. The pulsed polarimeter of claim 1 wherein the directional coupler further comprises one of:
a curved or planar reflective surface;
a plane mirror with a hole;
a non-polarizing beamsplitter; and
a frequency selective reflecting surface.
7. The pulsed polarimeter of claim 1 wherein the light gathering optical system further comprises:
a reflecting light gathering optic having a hole on axis with the optic axis and is configured to focus the emission; and
a reflecting collimating optic positioned to receive and collimate the emission into the collimated emission beam that is transmitted through the hole of the light gathering optic.
8. The pulsed polarimeter of claim 1 wherein the light gathering optical system further comprises:
a light gathering optic lens configured to focus the emission; and
a light collimating optic lens positioned to receive and collimate the focused light pulse induced emission into the collimated emission beam.
9. The pulsed polarimeter of claim 1 wherein the polarization preserving optical system further comprises:
a reflecting light gathering optic configured to focus the emission; and
a light collimating optic lens positioned to receive and collimate the focused light pulse induced emission into the collimated emission beam.
10. The pulsed polarimeter of claim 1 wherein the polarization detection system further comprises:
a polarizing beam splitter configured to analyze and separate the collimated emission beam into a first collimated polarized beam and a second collimated polarized beam polarized orthogonally to the first collimated polarized beam;
a first focusing lens configured to receive and focus the first collimated polarized beam;
a second focusing lens configured to receive and focus the second collimated polarized beam;
a first detector positioned to detect the focused first collimated polarized beam and produce an electrical signal that is proportional to the intensity of the first collimated polarized beam; and
a second detector positioned to detect the focused second collimated polarized beam and produce electrical signal that is proportional to the intensity of the second collimated polarized beam.
11. The pulsed polarimeter of claim 1 wherein the optically active medium demonstrating induced optical activity further comprises one of:
a magnetized laboratory plasma and the magneto-optical Faraday effect;
an optically transparent medium demonstrating the magneto-optical Faraday effect;
an optically transparent medium demonstrating the electro-optical Kerr effect; and
an optically transparent medium demonstrating the electro-optic Pockels effect.
12. The pulsed polarimeter of claim 1 wherein the intensity and polarization state can be used to determine the inducing fields further comprises one of:
determine a spatial distribution of an magnetic field along the trajectory of the polarized light pulse when the medium is in a magneto-optically active medium with location given by time-of-flight; and
determine a spatio-temporal development of an electric field along the trajectory of the polarized light pulse when the medium is an electro-optically active medium with location given by time-of-flight.
13. A method of conducting remote, non-perturbative diagnostic measurements of the inducing fields of a medium demonstrating induced optical activity, the method comprising:
generating a polarized light pulse having sufficiently narrow spatial extent and at a prescribed wavelength;
collecting a predetermined solid angle of an emission from the medium along a optic axis of a light gathering optic and collimating the emission into a collimated emission beam while preserving the polarization state of the emission;
making coincident the propagation path of the polarized light pulse with the optic axis of the light gathering optic and directing the polarized light pulse toward the medium; and
determining the inducing fields based on measuring the intensity and determining the polarization state of the collimated emission beam continuously in time as the polarized light pulse transits the medium.
14. The method of claim 13 wherein the polarized light pulse further comprises one or more of:
linearly polarized light;
circularly polarized light; and
elliptically polarized light.
15. The method of claim 13 wherein generating the polarized light pulse further comprises frequency modulating the polarized light pulse.
16. The method of claim 13 wherein directing the polarized light pulse toward the optically active medium along the axis of the solid angle further comprises reflecting the polarized light pulse off of a reflective surface.
17. The method of claim 13 wherein collimating the polarized light pulse induced emission further comprises:
gathering the light pulse induced emission; and
reflecting the gathered light pulse induced emission into the collimated emission beam.
18. The method of claim 13 wherein determining the intensity and the polarization state of the collimated emission beam further comprises spatially separating and resolving the collimated emission beam into a first collimated polarized beam and a second collimated polarized beam, wherein the polarization state of the first collimated polarize beam is orthogonal to the polarization state of the second collimated polarized beam.
19. The method of claim 13 wherein the optically active medium further comprises one of:
a magnetized laboratory plasma and the magneto-optical Faraday effect;
an optically transparent medium demonstrating the magneto-optic Faraday effect
an optically transparent medium demonstrating the electro-optical Kerr effect; and
an optically transparent medium demonstrating the electro-optic Pockels effect
20. The method of claim 13 wherein determining the inducing fields further comprises one of:
determining a spatial distribution of an magnetic field along the propagation path of the polarized light pulse when the medium is a magneto-optically active medium with location given by time-of-flight; and
determining a spatio-temporal development of an electric field along the propagation path of the polarized light pulse when the medium is an electro-optically active medium with location given by time-of-flight.