What is claimed is:
1. An image display device, comprising:
an image display section for displaying an image in accordance with an input of a chrominance signal; and
a chrominance signal converter for converting the chrominance signal to be inputted into the image display section, in accordance with light characteristics of external light that strikes onto the image display section.
2. An image display device as set forth in claim 1, further comprising:
a sensor for sensing the light characteristics of the external light,
wherein the chrominance signal converter converts the chrominance signal into a chrominance signal of a color suitable for an output of the sensor.
3. The image display device as set forth in claim 2, wherein:
the chrominance signal converter includes a target display color setting section for setting a color to display as an image agreeable with chromatic adaptation characteristics of human, according to the output of the sensor, the chrominance signal converter converting the chrominance signal into a chrominance signal of a target display color that has been set by the target display color setting section.
4. The image display device as set forth in claim 2, wherein:
the chrominance signal converter includes a color reproduction section for reproducing a color to display as an image agreeable with chromatic adaptation characteristics of human by using three primary colors having chromaticities suitable for the output of the sensor, the chrominance signal converter converting the chrominance signal into a chrominance signal of a color reproduced by the color reproduction section.
5. The image display device as set forth in claim 2, wherein:
the chrominance signal converter includes (1) a target display color setting section for setting a color to display as an image agreeable with chromatic adaptation characteristics of human, according to the output of the sensor, and (2) a color reproduction section for reproducing a target display color that has been set by the target display color setting section, by using three primary colors having chromaticities suitable for the output of the sensor, the chrominance signal converter converting the chrominance signal into a chrominance signal of a target display color reproduced by the color reproduction section.
6. The image display device as set forth in claim 2, wherein:
the chrominance signal converter includes (1) a color correction coefficient generator for generating color correction coefficient, in accordance with the output of the sensor, and (2) color correction section for correcting the chrominance signal by using the color correction coefficient generated by the color correction coefficient generator.
7. The image display device as set forth in claim 6, wherein:
the color correction coefficient generator includes (1) a target display color setting coefficient generator for generating a target display color setting coefficient as a first color correction coefficient used for setting a target display color, and (2) a color reproduction coefficient generator for generating a color reproduction coefficient as a second color correction coefficient used for color reproduction, based on the output of the sensor, and the color correction section includes (1) a multiplier for calculating a product of (a) the target display color setting coefficient generated by the target display color setting coefficient generator, and (b) the color reproduction coefficient generated by the color reproduction coefficient generator, and (2) a target display color correction section for performing color correction of a chrominance signal, based on a value obtained by the multiplier.
8. The image display device as set forth in claim 2, wherein:
the sensor has a function to resolve wavelength characteristics into at least two different types of wavelength regions, and measures wavelength characteristics of the external light, based on output values in the respective wavelength regions.
9. An image display device as set forth in claim 1, further comprising:
a memory for storing in advance the light characteristics of a plurality of types of the external light,
wherein the chrominance signal converter converts the chrominance signal into a chrominance signal of a color suitable for the light characteristics of the external light that are selected and read out from the memory.
10. The image display device as set forth in claim 9, wherein:
the memory stores wavelength characteristics of more than two types of wavelength regions of the external light, and outputs the wavelength characteristics as the selected light characteristics of the external light, in accordance with a combination of the stored wavelength characteristics.
11. The image display device as set forth in claim 9, wherein:
the chrominance signal converter includes a target display color setting section for setting a color to display as an image agreeable with chromatic adaptation characteristics of human, based on the light characteristics of the external light selected from the memory, the chrominance signal converter converting the chrominance signal into a chrominance signal of a target display color that has been set by the target display color setting section.
12. The image display device as set forth in claim 9, wherein:
the chrominance signal converter includes a color reproduction section for reproducing a color to display as an image agreeable with chromatic adaptation characteristics of human, by using three primary colors having chromaticities suitable for the light characteristics of the external light selected from the memory, the chrominance signal converter converting the chrominance signal into a chrominance signal of a color reproduced by the color reproduction section.
13. The image display device as set forth in claim 9, wherein:
the chrominance signal converter includes (1) a target display color setting section for setting a color to display as an image agreeable with chromatic adaptation characteristics of human, based on the light characteristics of the external light selected from the memory, and (2) a color reproduction section for reproducing a target display color that has been set by the target display color setting section, by using three primary colors having chromaticities suitable for the output of the memory, the chrominance signal converter converting the chrominance signal into a chrominance signal of the target display color reproduced by the color reproduction section.
14. An image display device as set forth in claim 9, further comprising:
a sensor for sensing the light characteristics of the external light, wherein the chrominance signal converter selectively performs (1) conversion of a chrominance signal based on an output of the sensor, or (2) conversion of a chrominance signal based on the light characteristics of the external light selected from the memory.
15. The image display device as set forth in claim 14, wherein:
the chrominance signal converter performs the conversion of the chrominance signal based on the light characteristics of the external light selected from the memory, when an illuminance output, which is one of types of the outputs of the sensor, exceeds a certain value.
16. The image display device as set forth in claim 9, wherein:
the memory stores in advance a plurality of types of characteristics of the external light and a plurality of color correction coefficients that vary depending on the light characteristics of the external light; and
the chrominance signal converter includes (1) a color correction coefficient generator for reading out a color correction coefficient stored in the memory, based on the selected light characteristics of the external light, and (2) a color correction section for correcting the chrominance signal by using the color correction coefficient that is read out from the memory by the color correction coefficient generator.
17. An electronic apparatus, which has an image display device, comprising:
an image display section for displaying an image in accordance with an input of a chrominance signal; and
a chrominance signal converter for converting the chrominance signal to be inputted into the image display section, in accordance with light characteristics of external light that strikes onto the image display section.
18. An image display method comprising step of converting a chrominance signal to be inputted into an image display section, in accordance with light characteristics of external light that strikes onto the image display section that displays an image in accordance with an input of a chrominance signal.
19. The image display method as set forth in claim 18, wherein the chrominance signal is converted into a chrominance signal of a color suitable for the light characteristics of the external light that are detected by a sensor.
20. The image display method as set forth in claim 18, wherein the chrominance signal is converted into a chrominance signal of a color suitable for the light characteristics of the external light that are selected and read out from among light characteristics of a plurality of types of external light, which are stored in a memory in advance.
21. The image display method as set forth in claim 19, wherein the conversion of the chrominance signal is carried out based on a color to display, which has been set according to the light characteristics of the external light and in consideration of color adaptation characteristics of human.
22. The image display method as set forth in claim 19, wherein the conversion of the chrominance signal is carried out based on a color reproduced by using three primary colors having chromaticities suitable for the light characteristics of the external light.
23. The image display method as set forth in claim 19, wherein the conversion of the chrominance signal is carried out base on a reproduced color that is a color, according to the light characteristics of the external light, set as an image agreeable with chromatic adaptation characteristics of human, and reproduced by using three primary colors having chromaticities suitable for the light characteristics of the external light.
24. The image display method as set forth in claim 20, wherein the conversion of the chrominance signal is carried out based on a color to display, which is set according to the light characteristics of the external light and in consideration of color adaptation characteristics of human.
25. The image display method as set forth in claim 20, wherein the conversion of the chrominance signal is carried out based on a color reproduced by using three primary colors having chromaticities suitable for the light characteristics of the external light.
26. The image display method as set forth in claim 20, wherein a color is set, according to the light characteristics of the external light, as an image agreeable with chromatic adaptation characteristics of human, the color is reproduced by using three primary colors having chromaticities suitable for the light characteristics of the external light, and the conversion of the chrominance signal is carried out based on the reproduced color.
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 receptacle for holding fine powders, the receptacle comprising:
a receptacle body that defines an enclosed cavity, wherein the receptacle body has a top end and a bottom end, and wherein the bottom end of the receptacle body includes a raised central region that extends upwardly into the cavity.
2. A receptacle as in claim 1, wherein the receptacle body further comprises at least one curved wall that in combination with the raised central region forms a generally semi-toroidal geometry in the cavity.
3. A receptacle as in claim 1, wherein a portion of the bottom end is flat in geometry.
4. A receptacle as in claim 1, wherein the receptacle body further includes a tab extending from the cavity
5. A receptacle as in claim 1, further comprising a central hole in the top end and multiple vents, and a cover removably attached to the top end to cover the hole and the vents.
6. A method for aerosolizing a powder, the method comprising:
providing a receptacle having a top end, a bottom end, and a cavity containing a powder;
inserting a bottom end of an extraction tube into the cavity such that the bottom end of the extraction tube is spaced above the bottom end of the receptacle;
forming at least one vent in the cavity;
forming a hole in the bottom end of the cavity; and
flowing a gas stream through the hole in the bottom end of the receptacle and through at least a portion of the extraction tube to cause air to be drawn through the vent and then through the cavity to move the powder in the cavity into the extraction tube where the powder is entrained in the high pressure gas stream to form an aerosol.
7. A method as in claim 6, wherein the bottom end of the receptacle includes a raised central region that extends upwardly into the cavity, and further comprising aligning the extraction tube with the raised central region such that the bottom end of the extraction tube is spaced apart from the raised central region.
8. A method as in claim 6, further comprising capturing the aerosolized powder in a capture chamber.
9. A method as in claim 6, further comprising forming multiple vents in the top end of the receptacle about a periphery of the cavity such that air is drawn through substantially all of the cavity to remove the powder.
10. A method as in claim 6, further comprising forming tabs in the top end of the receptacle body that extend into the cavity to create a vortex within the cavity as the air flows through the cavity.
11. A method as in claim 6, further comprising a patient inhaling to produce the gas stream.
12. A method as in claim 6, further comprising releasing an amount of pressurized gas to produce the gas stream.
13. A method for aerosolizing a powdered medicament, the method comprising:
providing a receptacle comprising a receptacle body that defines an enclosed cavity, wherein the receptacle body has a top end and a bottom end, and wherein the bottom end of the receptacle body includes a raised central region that extends upwardly into the cavity;
inserting a bottom end of an extraction tube into the cavity such that the bottom end of the extraction tube is aligned with the raised central region and is spaced above the bottom end of the receptacle;
forming vents in the top end of the receptacle about a periphery of the cavity; and
flowing a gas stream through a least a portion of the extraction tube to draw air through the vents and then through the cavity to move the powder in the cavity into the extraction tube where the powder is entrained in the gas stream to form an aerosol.
14. A method as in claim 13, wherein the receptacle includes a curved wall, and wherein the air flows along the wall to remove substantially all powder from the receptacle.
15. A method as in claim 13, wherein the air drawn by the gas stream flows through a flow area, and further comprising reducing the flow area as the air flows through the receptacle and the extraction tube to accelerate the flow of air through the receptacle.
16. A method as in claim 15, wherein the vents form a first flow area, wherein a gap between the extraction tube and the bottom end of the receptacle defines a second flow area, and wherein a cross section of the extraction tube defines a third flow area, and wherein the first flow area is greater than the second flow area, and wherein the second flow area is greater than the third flow area.
17. A method as in claim 16, wherein the ratio of the first flow area to the second flow area and to the third flow area is about 2.0:1.5:1.0.
18. A method as in claim 13, further comprising piercing a hole through the top end of the receptacle and inserting the extraction tube into the cavity through the hole in the top end.
19. A method as in claim 13, further comprising introducing the gas stream into the extraction tube at a location spaced apart from the bottom end of the extraction tube.
20. A method as in claim 13, further comprising forming a hole in the bottom end of the receptacle body, and flowing the gas stream through the hole in the bottom end.
21. A method as in claim 13, further comprising a patient inhaling to produce the gas stream.
22. A method as in claim 13, further comprising releasing an amount of pressurized gas to produce the gas stream.
23. A method for aerosolizing a powdered medicament, the method comprising:
providing a receptacle comprising a receptacle body that defines an enclosed cavity, wherein the receptacle body has a top end and a bottom end;
inserting a bottom end of an extraction tube into the cavity such that the bottom end of the extraction tube is spaced above the bottom end of the receptacle;
forming vents in the top end of the receptacle about a periphery of the cavity; and
flowing a gas stream through a least a portion of the extraction tube to draw air through the vents and then through the cavity to move the powder in the cavity into the extraction tube where the powder is entrained in the gas stream to form an aerosol; and wherein the air drawn by the gas stream flows through a flow area, and further comprising reducing the flow area as the air flows through the receptacle and the extraction tube to accelerate the flow of air through the receptacle.
24. A method as in claim 23, further comprising a patient inhaling to produce the gas stream.
25. A method as in claim 23, further comprising releasing an amount of pressurized gas to produce the gas stream.
26. A method as in claim 23, wherein the vents form a first flow area, wherein a gap between the extraction tube and the bottom end of the receptacle defines a second flow area, and wherein a cross section of the extraction tube defines a third flow area, and wherein the first flow area is greater than the second flow area, and wherein the second flow area is greater than the third flow area.
27. A method as in claim 23, wherein the receptacle further comprises a curved wall, and wherein the bottom end of the receptacle body includes a raised central region that extends upwardly into the cavity to provide a generally laminar air flow along the wall.
28. An apparatus for aerosolizing a powdered medicament, the apparatus comprising:
a housing having a holder that is adapted to receive a receptacle having a cavity that holds a powder;
a piercing mechanism that is adapted to pierce a hole in a bottom end of the receptacle;
a vent forming mechanism for forming multiple vents in a top end of the receptacle; and
an extraction tube that is adapted to be placed into the cavity so as to be spaced above the bottom end of the receptacle and to be aligned with the hole in the bottom end.
29. An apparatus as in claim 28, further comprising a mouthpiece coupled to the housing that is adapted to receive a patient’s mouth to permit the patient to produce a gas stream that is flowed through the hole in the bottom end of the receptacle and into extraction tube to draw the powder from the cavity and into the extraction tube where the powder is entrained in the gas stream to form an aerosol
30. An apparatus as in claim 28, further comprising a flow insert to control spacing of the extraction tube relative to the receptacle.
31. A system for aerosolizing a powdered medicament, the system comprising:
at least one receptacle that comprises a receptacle body that defines an enclosed cavity, wherein the receptacle body has a top end and a bottom end, and wherein the bottom end of the receptacle body includes a raised central region that extends upwardly into the cavity; and
an aerosolizing apparatus having a holder for holding the receptacle, an extraction tube that is insertable into the cavity, a vent forming device to form multiple vents in the top end of the receptacle about a periphery of the cavity.
32. A system as in claim 32, further comprising a pressure source for producing a high pressure gas stream within at least a portion of the extraction tube to draw air through the vents to move the powder from the cavity and into the extraction tube where the powder is entrained in the high pressure gas stream to form an aerosol.
33. A system as in claim 32, further comprising a flow insert to control spacing of the extraction tube relative to the receptacle.
34. A system as in claim 32, wherein a portion of the bottom end of the receptacle is flat in geometry.
35. A powder extraction system, comprising:
at least one receptacle that defines an enclosed cavity that holds a powder, wherein the receptacle has a top end and a bottom end;
a holder to hold the receptacle;
an extraction tube that is insertable into the cavity;
a vent forming device to form vents in the top end of the receptacle, wherein the vents form a first flow area, wherein a gap between the extraction tube and the bottom end of the receptacle defines a second flow area, and wherein a cross section of the extraction tube defines a third flow area, and wherein the holder is configured to move the receptacle relative to the bottom end of the extraction tube such that the first flow area is greater than the second flow area, and wherein the second flow area is greater than the third flow area to accelerate a gas flowing through the receptacle.
36. A system as in claim 36, further comprising a pressure source for producing a high pressure gas stream within at least a portion of the extraction tube to draw air through the vents to move the powder from the cavity and into the extraction tube where the powder is entrained in the high pressure gas stream to form an aerosol
37. A system as in claim 36, wherein the receptacle includes a curved wall, and wherein the bottom end of the receptacle includes a raised central region that extends upwardly into the cavity.