1. A system comprising:
a first storage unit configured to store an authentication sequence;
a read-only memory unit configured to store an authentication algorithm; and
a microcontroller coupled to the first storage unit and the read-only memory unit, and configured to be coupled to and uncoupled from a host and configured to execute the authentication algorithm to verify a password with the authentication sequence;
the microcontroller further configured to send an access request to a web server via the host if the authentication algorithm has verified the password with the authentication sequence.
2. The system of claim 1, further comprising a universal serial bus (USB) connector for coupling the microcontroller to the host.
3. The system of claim 1, further comprising a second storage unit coupled to the microcontroller.
4. The system of claim 3, wherein the microcontroller enables the host to access data stored in the second storage unit upon verification of the password with the authentication sequence.
5. The system of claim 3, wherein the microcontroller is further configured to receive data from the web server via the host and to store the data from the web server in the second storage unit.
6. The system of claim 3, further comprising an encoder coupled to the microcontroller, the encoder configured to encrypt data received from the web server.
7. The system of claim 3, further comprising an encoder coupled to the microcontroller, the encoder configured to decrypt data received from the web server.
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. An image display apparatus comprising:
a laser source for emitting ultraviolet or blue display-use laser light having a wavelength of 420 nm or less; and
a display unit including a fluorescent light generating section for generating fluorescent light when irradiated with the display-use laser light, wherein said display unit displays an image using the fluorescent light generated by said fluorescent light generating section,
wherein said display unit further includes an extraneous light shielding section for shielding an extraneous light which is emitted from a back side of said display unit and which has a wavelength in a range where the fluorescent light is generated so as to prevent said extraneous light from entering in said fluorescent light generating section.
2. The image display apparatus according to claim 1, wherein:
said extraneous light shielding section includes a transparent plate formed on a back side of said fluorescent light generating section, said transparent plate containing a material which blocks the extraneous light which has the wavelength in a range where the fluorescent light is generated.
3. The image display apparatus according to claim 1, wherein:
said extraneous light shielding section includes an extraneous light filtering film formed on a back side of said fluorescent light generating section, said extraneous light filtering film containing a material which blocks the extraneous light which has the wavelength in a range where the fluorescent light is generated.
4. The image display apparatus according to claim 1, wherein:
said display unit further includes a light amount regulating film formed on a back side of said fluorescent light generating section for adjusting the amount of the extraneous light which reaches said fluorescent light generating section.
5. The image display apparatus according to claim 4 further comprising:
a controller for controlling said light amount regulating film; and
a light receiving element provided on the back side of said fluorescent light generating section;
wherein said controller controls said light amount regulating film based on the amount of the extraneous light received by said light receiving element, thereby adjusting the amount of the extraneous light to be transmitted through said light amount regulating film.
6. The image display apparatus according to claim 1, wherein:
said display unit further includes an antireflective film formed so as to cover at least an inside surface of said fluorescent light generating section.
7. The image display apparatus according to claim 6, wherein:
said antireflective film contains a material having a photocatalytic effect.
8. The image display apparatus according to claim 6, wherein:
said antireflective film has a single-layered or multi-layered structure.
9. The image display apparatus according to claim 1, wherein:
said laser source focuses the display-use laser light focuses within said fluorescent light generating section.
10. The image display apparatus according to claim 1 further comprising:
a scanning section for scanning the display-use laser light over said display unit,
wherein said fluorescent light generating section generates the fluorescent light for use in displaying the image by scanning the display-use laser light over said fluorescent light generating section by said scanning section.
11. The image display apparatus according to claim 1, wherein:
said laser source includes a semiconductor laser device having a plurality of striped active regions.
12. The image display apparatus according to claim 1, wherein:
the fluorescent light is green light.
13. The image display apparatus according to claim 1, wherein:
said laser source includes a semiconductor laser device which emits laser light components in at least three wavelength ranges having different central wavelengths so that said fluorescent light generating section generates red, green and blue components of the fluorescent light when irradiated with the display-use laser light.
14. The image display apparatus according to claim 1, wherein:
a transparent plate formed on a back side of said fluorescent light generating section constitutes part of a windshield of a vehicle, said image display apparatus further comprising:
a scanning section for scanning the display-use laser light over said display unit; and
an optical fiber for guiding the display-use laser light emitted from said laser source to said scanning section.
15. The image display apparatus according to claim 14, wherein:
said laser source is provided under a dash panel or a seat of the vehicle.
16. The image display apparatus according to claim 14, further comprising:
a display-use laser light shielding section for preventing the display-use laser light scanned by said scanning section from entering a visual space of a vehicle occupant.
17. The image display apparatus according to claim 14 further comprising:
a controller for controlling said image display apparatus to cut off power supply to said laser source under conditions where a seat belt for a vehicle occupant is not locked to a specific position.