1. A method for setting a preset white balance of a digital photographing apparatus in order to apply preset white balance data of the digital photographing apparatus, comprising:
setting non-flash white balance data when a flash light is not emitted; and
setting flash white balance data when the flash light is emitted.
2. The method of claim 1, wherein the setting of the non-flash white balance data comprises:
obtaining non-flash image data when the flash light is not emitted; and
using the obtained non-flash image data to set the non-flash white balance data.
3. The method of claim 1, wherein the setting of the flash white balance data comprises:
obtaining flash image data when flash light is emitted; and
using the obtained flash image data to set the white balance data.
4. A method for applying, when an object is photographed, the preset white balance data of a digital photographing apparatus wherein the preset white balance data is set by the method of claim 1, the method comprising:
if the flash light is not emitted, applying the non-flash white balance data as the preset white balance data; and
if the flash light is emitted, combining the flash white balance data and the non-flash white data with respect to a brightness level when the flash light is emitted and then applying the combined data as the preset white balance data.
5. The method of claim 4, wherein the combining the flash white balance data and the non-flash white data and then applying the combined data comprises:
obtaining a flash light brightness effect ratio and a surrounding illumination brightness effect ratio when the object is photographed; and
multiplying the flash light brightness effect ratio by the flash white balance data and adding a resultant value to a value that is obtained by multiplying the surrounding illumination brightness effect ratio by the non-flash white balance data.
6. A method for setting a preset white balance of a digital photographing apparatus in order to apply preset white balance data of the digital photographing apparatus, comprising:
obtaining non-flash image data when a flash light is not emitted;
using the non-flash image data to set non-flash white balance data;
obtaining flash image data when the flash light is emitted;
performing arithmetic calculation of the flash image data and non-flash image data; and
setting the flash white balance data when the flash light is emitted.
7. The method of claim 6, wherein the setting of the flash white balance data comprises:
obtaining a difference value from the non-flash image data and the flash image data; and
using the difference value to set the flash white balance data when flash light is emitted.
8. A method for applying, when an object is photographed, the preset white balance data of a digital photographing apparatus, wherein the preset white balance data is set by the method of claim 6, the method comprising:
if the flash light is not emitted, applying the non-flash white balance data as the preset white balance data; and
if the flash light is emitted, combining the flash white balance data and the non-flash white data with respect to a brightness level when the flash light is emitted and then applying the combined data as the preset white balance data.
9. The method of claim 8, wherein the combining the flash white balance data and the non-flash white data and then applying the combined data comprises:
obtaining a flash light brightness effect ratio and a surrounding illumination brightness effect ratio when the object is photographed; and
multiplying the flash light brightness effect ratio by the flash white balance data and adding a resultant value to a value that is obtained by multiplying the surrounding illumination brightness effect ratio by the non-flash white balance data.
10. A method for setting a preset white balance of a digital photographing apparatus in order to apply preset white balance data of the digital photographing apparatus, comprising:
obtaining flash image data when a flash light is emitted;
using the flash image data to set the flash white balance data;
obtaining non-flash image data when the flash light is not emitted;
performing arithmetic calculation of the flash image data and non-flash image data; and
setting non-flash white balance data when the flash light is not emitted.
11. The method of claim 10, wherein the setting of the non-flash white balance data comprises:
obtaining a difference value from the non-flash image data and the flash image data; and
using the difference value to set the non-flash white balance data when flash light is not emitted.
12. A method for applying, when an object is photographed, the preset white balance data of a digital photographing apparatus, wherein the preset white balance data is set by the method of claim 10, the method comprising:
if the flash light is not emitted, applying the non-flash white balance data as the preset white balance data; and
if the flash light is emitted, combining the flash white balance data and the non-flash white balance data with respect to a brightness level when the flash light is emitted and then applying the combined data as the preset white balance data.
13. The method of claim 12, wherein the combining of the flash white balance data and the non-flash white data and then applying the combined data comprises:
obtaining the flash light brightness effect ratio and the surrounding illumination brightness effect ratio when the object is photographed; and
multiplying the flash light brightness effect ratio by the flash white balance data and adding a resultant value to a value that is obtained by multiplying the surrounding illumination brightness effect ratio by the non-flash white balance data.
14. A digital photographing apparatus comprising:
a flash;
a flash controller;
means for setting more than one white balance data set; and
when an object is photographed, means for selecting and applying an appropriate preset white balance data set based upon a brightness level when the object is photographed.
15. The digital photographing apparatus of claim 14, wherein, when the apparatus is in a white balance adjusting mode,
if a flash light is not emitted when a shutter button is pressed, non-flash white balance data is set; and
if a flash light is emitted when the shutter button is pressed, flash white balance data is set.
16. The digital photographing apparatus of claim 15, wherein
if a flash light is not emitted when a shutter button is pressed, non-flash white balance data is applied as the preset white balance data set; and
if the flash light is emitted when the shutter button is pressed, flash white balance data and non-flash white balance data are combined with respect to a brightness level when the flash light is emitted and then the combined data is applied as the preset white balance data set
17. The digital photographing apparatus of claim 14, further comprising:
a preset white balance adjusting key which is capable of transmitting a white balance adjusting mode control signal to a means for controlling operations of the apparatus.
18. The digital photographing apparatus of claim 17, wherein the means for controlling operations of the apparatus comprises a microcontroller.
19. The digital photographing apparatus of claim 15, wherein, when the apparatus is in a white balance adjusting mode, flash image data is obtained when a flash light is emitted;
flash white balance data is set;
non-flash image data is obtained when the flash light is not emitted;
non-flash white balance data is calculated from the flash image data and the non-flash image data; and
the non-flash white balance data is set.
20. The digital photographing apparatus of claim 15, wherein, when the apparatus is in a white balance adjusting mode,
non-flash image data is obtained when a flash light is not emitted;
non-flash white balance data is set;
flash image data is obtained when the flash light is emitted;
flash white balance data is calculated from the flash image data and the non-flash image data; and
the flash white balance data is set.
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 we claimed is:
1. A soldering flux for circuit board, which is designed to be employed on an occasion of soldering electronic parts on a circuit board, said soldering flux comprising; 0.1 to 30% by mass (based on the flux) of a rosin-based modified resin having an acid value of not less than 100, a nondissociative activator formed of a nondissociative halogenide, and an aqueous solvent containing a volatile basic agent.
2. The soldering flux for circuit board according to claim 1, wherein said nondissociative halogenide is alcohol halide.
3. The soldering flux for circuit board according to claim 2, wherein said alcohol halide is added to said flux at a ratio of 0.1 to 10% by mass (based on the flux).
4. The soldering flux for circuit board according to claim 1, wherein said volatile basic agent is at least one kind of compound selected from the group consisting of ammonia, an amine compound represented by the following general formula (1), hydrazine, polyamine, nitrogen atom-containing heterocyclic compounds, alicyclic amine and aromatic amine.
3
wherein R1, R2 and R3 may be the same or different and are individually hydrogen atom, alkyl group or alkanol group.
5. The soldering flux for circuit board according to claim 3, wherein said volatile basic agent is at least one kind of compound selected from the group consisting of ammonia, an amine compound represented by the following general formula (1), hydrazine, polyamine, nitrogen atom-containing heterocyclic compounds, alicyclic amine and aromatic amine.
4
where in R1, R2 and R3 may be the same or different and are individually hydrogen atom, alkyl group or alkanol group.
6. The soldering flux for circuit board according t o claim 5, wherein said volatile basic agent has a boiling point of less than 200 C., and included in the flux at a ratio of 0.1 to 20% by mass based on the flux.
7. The soldering flux for circuit board according to claim 1, where in said aqueous solvent is consisted of water and a water-soluble solvent, and the content of said water is less than 50% by mass based on the flux.
8. The soldering flux for circuit board according to claim 6, wherein said aqueous solvent is consisted of water and a water-soluble solvent, and the content of said water is less than 50% by mass based on the flux.
9. The soldering flux for circuit board according to claim 8, wherein said aqueous solvent is consisted solely of water.
10. A circuit board wherein the soldering lands thereof are protected by a coating of the soldering flux for circuit board according to claim 1, thereby making it ready for mounting electronic parts.
11. A circuit board wherein the soldering lands thereof are protected by a coating of the soldering flux for circuit board according to claim 3, thereby making it ready for mounting electronic parts.
12. A circuit board wherein the soldering lands thereof are protected by a coating of the soldering flux for circuit board according to claim 6, thereby making it ready for mounting electronic parts.
13. A circuit board wherein the soldering lands thereof are protected by a coating of the soldering flux for circuit board according to claim 8, thereby making it ready for mounting electronic parts.
14. A circuit board wherein the soldering lands thereof are protected by a coating of the soldering flux for circuit board according to claim 9, thereby making it ready for mounting electronic parts.
15. A circuit board wherein electronic parts are soldered onto the soldering lands thereof by making use of the soldering flux for circuit board according to claim 1.
16. A circuit board wherein electronic parts are soldered onto the soldering lands thereof by making use of the soldering flux for circuit board according to claim 3.
17. A circuit board wherein electronic parts are soldered onto the soldering lands thereof by making use of the soldering flux for circuit board according to claim 6.
18. A circuit board wherein electronic parts are soldered onto the soldering lands thereof by making use of the soldering flux for circuit board according to claim 8.
19. A circuit board wherein electronic parts are soldered onto the soldering lands thereof by making use of the soldering flux for circuit board according to claim 9.