Author: claimsbot

1. A silicate-based yellow-green phosphor having the formula A2SiO4:Eu2+D, wherein:
A is at least one of a divalent metal selected from the group consisting of Sr, Ca, Ba, Mg, Zn, and Cd; and
D is a dopant selected from the group consisting of F, Cl, Br, I, P, S and N, wherein D is present in the phosphor in an amount ranging from about 0.01 to 20 mole percent.
2. The silicate-based phosphor of claim 1, wherein the phosphor is configured to absorb radiation in a wavelength ranging from about 280 nm to 490 nm.
3. The silicate-based phosphor of claim 1, wherein the phosphor emits visible light having a wavelength ranging from about 460 nm to 590 nm.
4. The silicate-based phosphor of claim 1, wherein the phosphor has the formula (Sr1-x-yBaxMy)2 SiO4: Eu2+D, where M is at least one of an element selected from the group consisting of Ca, Mg, Zn, and Cd, and where
0\u2266x\u22661;
0\u2266y\u22661 when M is Ca;
0\u2266y\u22661 when M is Mg; and
0\u2266y\u22661 when M is selected from the group consisting of Zn and Cd.
5. The silicate-based phosphor of claim 1, wherein D is F.
6. The silicate-based phosphor of claim 1, wherein the phosphor has the formula (Sr1-x-yBaxMy)2 SiO4: Eu2+F, where M is at least one of an element selected from the group of Ca, Mg, Zn,Cd, and where
0\u2266x\u22660.3;
0\u2266y\u22660.5 when M is Ca;
0\u2266y\u22660.1 when M is Mg; and
0\u2266y\u22660.5 when M is selected from the group consisting of Zn and Cd.
7. The silicate-based phosphor of claim 6, wherein the phosphor emits light in the yellow region of the electromagnetic spectrum, and has a peak emission wavelength ranging from about 540 to 590 nm.
8. The silicate-based phosphor of claim 1, wherein the phosphor has the formula (Sr1-x-yBaxMy)2 SiO4: Eu2+F, where M is at least one of an element selected from the group consisting of Ca, Mg, Zn, and Cd, and where
0.3\u2266x\u22661;
0\u2266y\u22660.5 when M is Ca;
0\u2266y\u22660.1 when M is Mg; and
0\u2266y\u22660.5 when M is selected from the group consisting of Zn and Cd.
9. The silicate-based phosphor of claim 8, wherein the phosphor emits light in the green region of the electromagnetic spectrum, and has a peak emission wavelenth ranging from about 500 to 530 nm.
10. A white LED comprising:
a radiation source configured to emit radiation having a wavelength ranging from about 410 to 500 nm;
a yellow phosphor according to claim 7, the yellow phosphor configured to absorb at least a portion of the radiation from the radiation source and emit light with a peak intensity in a wavelength ranging from about 530 to 590 nm.
11. A white LED comprising:
a radiation source configured to emit radiation having a wavelength ranging from about 410 to 500 nm;
a yellow phosphor according to claim 7, the yellow phosphor configured to absorb at least a portion of the radiation from the radiation source and emit light with peak intensity in a wavelength ranging from about 530 to 590 nm; and
a green phosphor according to claim 9, the green phosphor configured to absorb at least a portion of the radiation from the radiation source and emit light with peak intensity in a wavelength ranging from about 500 to 540 nm.
12. A white LED comprising:
a radiation source configured to emit radiation having a wavelength ranging from about 410 to 500 nm;
a green phosphor according to claim 9, the green phosphor configured to absorb at least a portion of the radiation from the radiation source and emit light with peak intensity in a wavelength ranging from about 500 to 540 nm;
a red phosphor selected from the group consisting of CaS:Eu2+, SrS:Eu2+, MgO*MgF*GeO:Mn4+, and MxSiyNz:Eu+2 where M is selected from the group consisting of Ca, Sr, Ba, and Zn; Z=23x+43y, wherein the red phosphor is configured to absorb at least a portion of the radiation from the radiation source and emit light with peak intensity in a wavelength ranging from about 590 to 690 nm.
13. A white LED comprising:
a radiation source configured to emit radiation having a wavelength ranging from about 410 to 500 nm;
a yellow phosphor according to claim 7, the yellow phosphor configured to absorb at least a portion of the radiation from the radiation source and emit light with a peak intensity in a wavelength ranging from about 540 to 590 nm;
a red phosphor selected from the group consisting of CaS:Eu2+, SrS:Eu2+, MgO*MgF*GeO:Mn4+, and MxSiyNz:Eu+2 where M is selected from the group consisting of Ca, Sr, Ba, and Zn; and Z=23x+43y, wherein the red phosphor is configured to absorb at least a portion of the radiation from the radiation source and emit light with peak intensity in a wavelength ranging from about 590 to 690 nm.
14. A composition comprising:
a silicate-based yellow phosphor having the formula A2SiO4:Eu2+D, wherein A is at least one divalent metal selected from the group consisting of Sr, Ca, Ba, Mg, Zn, and Cd; and D is an ion that is present in the yellow phosphor in an amount ranging from about 0.01 to 20 mole percent; and
a blue phosphor;
wherein the yellow phosphor is configured to emit visible light with a peak intensity in a wavelength ranging from about 540 nm to 590 nm; and the blue phosphor is configured to emit visible light with a peak intensity in a wavelength ranging from about 440 to 510 nm.
15. The composition of claim 14, wherein the blue phosphor is selected from the group consisting of silicate-based phosphors and aluminate-based phosphors.
16. The composition of claim 15, wherein the silicate-based blue phosphor has the formula Sr1-x-yMgxBaySiO4:Eu2+F; and where
0.5\u2266x\u22661.0; and
0\u2266y\u22660.5.
17. The composition of claim 15, wherein the aluminate-based blue phosphor has the formula (SrxBa1-x)1-yMggEuyAl10O17; and where
0.01<y<0.99; 0.01<y\u22661.0.
18. A composition comprising:
a silicate-based green phosphor having the formula A2SiO4:Eu2+H, wherein A is at least one of a divalent metal selected from the group consisting of Sr, Ca, Ba, Mg, Zn, and Cd; and H is a negatively charged halogen ion that is present in the yellow phosphor in an amount ranging from about 0.01 to 20 mole percent;
a blue phosphor; and
a red phosphor;
wherein the green phosphor is configured to emit visible light with a peak intensity in a wavelength ranging from about 500 nm to 540 nm; the blue phosphor is configured to emit visible light with a peak intensity in a wavelength ranging from about 480 to 510 nm; and the red phosphor is configured to emit visible light with a peak intensity in a wavelength ranging from about 775 to 620 nm.
19. A method of preparing a silicate-based yellow phosphor having the formula A2SiO4:Eu2+D, wherein A is at least one of a divalent metal selected from the group consisting of Sr, Ca, Ba, Mg, Zn, and Cd; and D is a dopant selected from the group consisting of F, Cl, Br, I, P, S and N, wherein D is present in the phosphor in an amount ranging from about 0.01 to 20 mole percent, the method selected from the group consisting of a sol-gel method and a solid reaction method.
20. The method of claim 19, wherein the sol-gel method comprises:
a) dissolving a desired amount of an alkaline earth nitrate selected from the group consisting of Mg, Ca, Sr, and Ba-containing nitrates with a compound selected from the group consisting of Eu2O3 and BaF2 or other alkaline metal halides, in an acid, to prepare a first solution;
b) dissolving corresponding amount of a silica gel in de-ionized water to prepare a second solution;
c) stirring together the solutions produced in steps a) and b), and then adding ammonia to generate a gel from the mixture solution;
d) adjusting the pH of the solution produced in step c) to a value of about 9, and then stirring the solution continuously at about 60\xb0 C. for about 3 hours;
e) drying the gelled solution of step d) by evaporation, and then decomposing the resulting dried gel at 500 to 700\xb0 C. for about 60 minutes to decompose and acquire product oxides;
f) cooling and grinding the gelled solution of step e) with NH4F or other ammonia halides when alkaline earth metal halides are not used in step a) to produce a powder;
g) calciningsintering the powder of step f) in a reduced atmosphere for about 6 to 10 hours, the sintering temperature ranging from about 1200 to 1400\xb0 C.
21. The method of claim 19, wherein the solid reaction method comprises:
a) wet mixing desired amounts of alkaline earth oxides or carbonates (Mg, Ca, Sr, Ba), dopants of Eu2O3 andor BaF2 or other alkaline earth metal halides, corresponding SiO2 andor NH4F or other ammonia halides with a ball mill; and
b) after drying and grinding, calcining andor sintering the resulting powder was in a reduced atmosphere for about 6 to 10 hours, wherein the calciningsintering temperature ranged from about 1200 to 1400\xb0 C.
22. A silicate-based yellow-green phosphor having the formula A2SiO4:Eu2+D, wherein:
A is at least one of a divalent metal selected from the group consisting of Sr, Ca, Ba, Mg, Zn, and Cd; and
D is a dopant selected from the group consisting of F, Cl, Br, I, S and N, wherein D is present in the phosphor in an amount ranging from about 0.01 to 20 mole percent.
23. A method of preparing a silicate-based yellow phosphor having the formula A2SiO4:Eu2+D, wherein A is at least one of a divalent metal selected from the group consisting of Sr, Ca, Ba, Mg, Zn, and Cd; and D is a dopant selected from the group consisting of F, Cl, Br, I, S and N, wherein D is present in the phosphor in an amount ranging from about 0.01 to 20 mole percent, the method selected from the group consisting of a sol-gel method and a solid reaction method.
24. A silicate-based yellow-green phosphor having the formula A2SiO4:Eu2+D, wherein:
A is at least one of a divalent metal selected from the group consisting of Sr, Ca, Ba, Mg, Zn, and Cd; and
D is a dopant selected from the group consisting of F, Cl, Br, I, S and N, wherein D is present in the phosphor in an amount ranging from about 0.01 to 20 mole percent;
subject to the proviso that compositions of the formula (2-x-y) SrO\xb7x(Bau, Cav)O\xb7(1-a-b-c-d)SiO2\xb7aP2O5 bAl2O3 cB2O3 dGeO2: yEu2+ are specifically excluded, where 0\u2266x<1.6; 0.005<y<0.5; x+y\u22661.6; 0\u2266a,b,c,d<0.5; and u+v=1.
25. A silicate-based yellow-green phosphor having the formula A2SiO4:Eu2+D, wherein:
A is at least one of a divalent metal selected from the group consisting of Sr, Ca, Ba, Mg, Zn, and Cd; and
D is a dopant selected from the group consisting of F, Cl, Br, I, S and N, wherein D is present in the phosphor in an amount ranging from about 0.01 to 20 mole percent;
subject to the proviso that compositions of the formula (2-x-y) BaO\xb7x(Sru, Cav)O\xb7(1-a-b-c-d)SiO2\xb7aP2O5 bAl2O3 cB2O3 dGeO2: yEu2+ are specifically excluded, where 0.1\u2266x<1.6; 0.005<y<0.5; 0\u2266a,b,c,d<0.5; u+v=1; and u\xb7v\u22670.4.
26. A silicate-based yellow-green phosphor having the formula (A1-xEux)2Si(O1-yDy)4, wherein:
A is at least one of a divalent metal selected from the group consisting of Sr, Ca, Ba, Mg, Zn, and Cd; and
D is a dopant selected from the group consisting of F, Cl, Br, I, S and N;
And, 0.001<x<0.10; 0.01<y<0.2
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 fan assembly comprising a nozzle and a system for creating a primary air flow through the nozzle, the nozzle comprising at least one outlet for emitting the primary air flow, the nozzle defining an opening through which a secondary air flow from outside the fan assembly is drawn by the primary air flow emitted from said at least one outlet, wherein the nozzle has an adjustable configuration.
2. The fan assembly of claim 1, wherein the configuration of the nozzle is adjustable between a number of settings.
3. The fan assembly of claim 1, wherein the nozzle comprises a first part and a second part which is moveable relative to the first part.
4. The fan assembly of claim 3, wherein the second part of the nozzle is moveable relative to the opening.
5. The fan assembly of claim 3, wherein the second part of the nozzle is moveable relative to the at least one outlet.
6. The fan assembly of claim 3, wherein the second part of the nozzle is located downstream of the at least one outlet.
7. The fan assembly of claim 3, wherein the second part of the nozzle is rotatable relative to the first part of the nozzle.
8. The fan assembly of claim 3, wherein the second part of the nozzle is slidably moveable relative to the first part of the nozzle.
9. The fan assembly of claim 3, wherein the second part of the nozzle is mounted on an external surface of the nozzle.
10. The fan assembly of claim 3, wherein the second part of the nozzle is moveable relative to the first part of the nozzle between a stowed position and a deployed position.
11. The fan assembly of claim 10, wherein, in the stowed position, the second part of the nozzle is shielded from the primary air flow.
12. The fan assembly of claim 10, wherein the first part of the nozzle is maintained in a fixed position relative to the at least one outlet as the second part of the nozzle is moved between the stowed position and the deployed position.
13. The fan assembly of claim 10, wherein, in the deployed position, the second part of the nozzle is located downstream from the first part of the nozzle.
14. The fan assembly of claim 3, wherein the first part of the nozzle is located downstream from the at least one outlet.
15. The fan assembly of claim 3, wherein the second part of the nozzle comprises a flow guiding member.
16. The fan assembly of claim 15, wherein at least one of the position and the orientation of the flow guiding member relative to the at least one air outlet is adjustable.
17. The fan assembly of claim 3, wherein the first part of the nozzle comprises a surface over which the at least one outlet is arranged to direct the primary air flow.
18. The fan assembly of claim 17, wherein said surface comprises a cutaway portion, and wherein the second part of the nozzle is moveable relative to said surface to at least partially cover said cutaway portion.
19. The fan assembly of claim 18, wherein said surface comprises a plurality of cutaway portions, and wherein the second part of the nozzle is moveable relative to said surface to at least partially cover at least one of the cutaway portions.
20. The fan assembly of claim 19, wherein the second part of the nozzle is moveable relative to said surface to at least partially cover simultaneously each of the cutaway portions.
21. The fan assembly of claim 19, wherein the cutaway portions are regularly spaced about the nozzle.
22. The fan assembly of claim 18, wherein the, or each, cutaway portion is located at or towards a front edge of the nozzle.
23. The fan assembly of claim 17, wherein the second part of the nozzle is moveable between a stowed position and a deployed position in which the second part of the nozzle is located downstream from said surface.
24. The fan assembly of claim 23, wherein, in the stowed position, the second part of the nozzle extends about said surface.
25. The fan assembly of claim 23, wherein, in the stowed position, at least part of the second part of the nozzle is located within the nozzle.
26. The fan assembly of claim 23, wherein the second part of the nozzle tapers inwardly relative to the surface over which the at least one outlet is arranged to direct the air flow.
27. The fan assembly of claim 3, wherein the second part of the nozzle is generally annular in shape.
28. The fan assembly of claim 1, wherein at least one of the size and the shape of the opening is fixed.
29. The fan assembly of claim 1, wherein at least one of the size, the shape and the position of the at least one outlet is fixed.
30. The fan assembly of cl aim 1, wherein the nozzle is in the form of a loop extending about the opening.
31. The fan assembly of claim 1, wherein said at least one outlet extends about the opening.
32. The fan assembly of claim 1, wherein said at least one outlet is substantially annular in shape.
33. The fan assembly of claim 1, wherein the nozzle is mounted on a base housing said system for creating a primary air flow.

1. A piezoelectric speaker, comprising:
a membrane;
an actuating layer comprising at least one a piezoelectric element mounted to said membrane, which at least one piezoelectric element is adapted to, when actuated, cause said membrane to vibrate in order to generate sound, and
variation means for varying the fraction of the actuating layer that is actuated depending on the sound frequency to be generated.
2. A piezoelectric speaker according to claim 1, wherein a reduced fraction of said actuating layer is actuated for higher sound frequencies.
3. A piezoelectric speaker according to claim 1, wherein said actuating layer comprises a single piezoelectric element.
4. A piezoelectric speaker according to claim 3, wherein said variation means is adapted to selectively actuate a number of different portions of said piezoelectric element by means of an electric input signal representative of the sound to be generated, wherein the number of actuated portions depends on the frequency of said input signal.
5. A piezoelectric speaker according to claim 4, wherein said variation means comprises a segmented electrode provided on one side of the piezoelectric element, said segmented electrode having individually activable segments corresponding to the portions of said piezoelectric element, whereby said portions can be individually actuated by supplying said input signal to a number of said electrode segments.
6. A piezoelectric speaker according to claim 5, wherein said segmented electrode is provided on one side of the piezoelectric element, while an unstructured electrode is provided on the opposite side of the piezoelectric element.
7. A piezoelectric speaker according to claim 5, wherein said variation means comprises a plurality of parallel frequency filters, each filter being adapted to receive said input signal and being connected to at least one of said electrode segments.
8. A piezoelectric speaker according to claim 5, wherein said variation means comprises a switch being connected to a frequency detector and having several output ports each connected to at least one of said electrode segments, wherein said switch is adapted to transfer said input signal to a number of said output ports depending on the frequency of said input signal as detected by said frequency detector.
9. A piezoelectric speaker according to claim 1, said speaker being a flat panel speaker.
10. A method for driving a piezoelectric speaker having a membrane and an actuating layer comprising at least one piezoelectric element mounted to said membrane, which at least one piezoelectric element is adapted to, when actuated, cause said membrane to vibrate in order to generate sound, the method including the step of:
varying the fraction of the piezoelectric element that is actuated depending on the sound frequency to be generated.
11. A piezoelectric speaker according to claim 2, wherein said actuating layer comprises a single piezoelectric 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.

1. An image processing apparatus comprising:
one or more processors configured to:
correct a geometric mismatch of optical noise of a left eye image and a right eye image, wherein the geometric mismatch of a first striation and a first light ray occurring in the left eye image and a second striation and a second light ray occurring in the right eye image is corrected, the correction of the geometric mismatch comprising:
performing a noise removal process remove separately generated optical noise on the left eye image and the right eye image, wherein the left eye image and the right eye image are captured by a two-lens type stereoscopic image capturing camera;

detect a striation region comprising a light source, a striation and a light ray, and a striation background region adjacent to the detected striation region from each of the left eye image and the right eye image; and
replace the striation region and the striation background region of one of the left eye image and the right eye image with the striation region and the striation background region of other of the left eye image and the right eye image.
2. The image processing apparatus according to claim 1, wherein the one or more processors are configured to:
divide each of the left eye image and the right eye image into a plurality of regions; and
correlate regions comprising the same subject with each other, or regions of images which are generated by an optically identical cause with each other, of the divided regions of the left eye image and the right eye image;
detect a striation region including a light source, a striation, and a light ray and a striation background region adjacent to the detected striation region from the divided regions of the left eye image and the right eye image; and
replace the striation region and the striation background region of one of the left eye image and the right eye image with the striation region and the striation background region of the other of the left eye image and the right eye image based on the correlation.
3. The image processing apparatus according to claim 1, wherein the one or more processors are configured to:
detect a striation region comprising a light source, a striation, and a light ray and a striation background region adjacent to the detected striation region from each of the left eye image and the right eye image; and
remove the light source, the striation, and the light ray included in the striation region from the left eye image and the right eye image.
4. The image processing apparatus according to claim 3, wherein the one or more processors are configured to:
divide each of the left eye image and the right eye image into a plurality of regions;
detect a striation region from the divided regions of the left eye image and the right eye image; and
remove the light source, the striation, and the light ray included in the striation region from the left eye image and the right eye image.
5. The image processing apparatus according to claim 1, wherein the one or more processors are configured to determine whether the noise removal process is performed.
6. The image processing apparatus according to claim 5, further comprising an input terminal that receives the left eye image, the right eye image, and photographing setting information transmitted from a camera system as input, wherein the one or more processors determine whether the noise removal process is performed based on a diaphragm value included in the photographing setting information.
7. The image processing apparatus according to claim 5, wherein the optical noise is a striation or a light ray, and wherein the one or more processors are configured to determine whether the noise removal process is performed based on the radius of the first and second striations or the first and second light rays occurring in the left eye image and the right eye image.
8. The image processing apparatus according to claim 5, wherein the optical noise is a striation, and wherein the one or more processors are configured to determine whether the noise removal process is performed based on the number of the first and second striations occurring in the left eye image and the right eye image.
9. The image processing apparatus according to claim 5, wherein the optical noise is a striation, and wherein the one or more processors are configured to determine whether the noise removal process is performed based on information of a number of diaphragm blades of a camera lens of a camera used to obtain the left eye image and the right eye image.
10. The image processing apparatus according to claim 5, wherein the optical noise is a striation, and wherein one or more processors are configured to determine whether the noise removal process is performed based on a lasting period of the first and second striations or the first and second light rays occurring in the left eye image and the right eye image.
11. An image processing method comprising:
correcting a geometric mismatch of optical noise of a left eye image and a right eye image, wherein the geometric mismatch of a first striation and a first light ray occurring in the left eye image and a second striation and a second light ray occurring in the right eye image is corrected, the correction of the geometric mismatch comprising:
by performing a noise removal process to remove separately generated optical noise on the left eye image and the right eye image, wherein the left eye image and the right eye image are captured by a two-lens type stereoscopic image capturing camera;

detecting a striation region comprising a light source, a striation and a light ray, and a striation background region adjacent to the detected striation region from each of the left eye image and the right eye image; and
replacing the striation region and the striation background region of one of the left eye image and the right eye image with the striation region and the striation background region of other of the left eye image and the right eye image.
12. A non-transitory computer-readable storage medium having stored thereon, a computer program having at least one code section, the at least one code section being executable by one or more processors for causing a computer to perform steps comprising:
dividing each of the left eye image and the right eye image into a plurality of regions;
correlating regions comprising same subject with each other, or regions of images which are generated by an optically identical cause with each other, of the divided regions of the left eye image and the right eye image;
detecting a striation region comprising a light source, a striation, and a light ray and a striation background region adjacent to the detected striation region from the divided regions of the left eye image and the right eye image; and
replacing the striation region and the striation background region of one of the left eye image and the right eye image with the striation region and the striation background region of other of the left eye image and the right eye image based on the correlation.
13. A non-transitory computer-readable storage medium having stored thereon, a computer program having at least one code section, the at least one code section being executable by one or more processors for causing a computer to perform steps comprising:
dividing each of the left eye image and the right eye image into a plurality of regions;
detecting a striation region comprising a light source, a striation, and a light ray from the divided regions of the left eye image and the right eye image; and
removing the light source, the striation, and the light ray included in the striation region from the left eye image and the right eye image, and generating light source, striation and light ray effects having geometric correlation to view stereoscopic images for the left eye image and the right eye image, wherein generating the light source, striation, and light ray effects comprises:
creating a striation image based on light source information and a virtual optical system; and
synthesizing the striation image with the right eye image and the left eye image.