JPH0448587A - Toning control device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Industrial application field]

The present invention is a color adjustment control device used in ordinary living spaces such as houses and offices, which includes a light emitting section equipped with a plurality of light sources emitting different colors, and which adjusts the mixing ratio of the emitted colors. This invention relates to a color adjustment control device that enables lighting at a desired color temperature.

[Conventional technology]

This type of color adjustment control device is, for example, provided with a light emitting section equipped with light sources of three colors, red, green, and blue, and by adjusting the brightness of each light source in the light emitting section, a light emitting section obtained as a color mixture is provided. It is conceivable to adjust the color temperature of the illumination light. That is, as shown in FIG. 4, a color selection section 1 selects the color temperature of the illumination light emitted from the light emitting section 4. A mixture ratio setting section 2 that stores the mixing ratio of each color necessary to obtain the selected color temperature is provided, and the brightness of each light source of the light emitting section 4 is adjusted by the output of the mixture ratio setting section 2. The mixture ratio setting section 2 is refined in a ROM or the like, and stores the mixture ratio necessary to obtain the color temperature selected by the color selection section 1 for the emission color of each light source of the light emitting section 4. , when the desired color temperature is selected in the color selection section 1, the mixture ratio setting section 2
It outputs the data stored at the corresponding address. The data regarding the mixing ratio outputted from the mixing ratio setting section 2 is input to the toning signal generating section 5 to give a dimming amount for each light source of the light emitting section 4, and the lighting time n6 is input to the toning signal generating section 5. Each light source is turned on according to the amount of dimming obtained in step 6.

[Question H that the invention attempts to solve]

Incidentally, depending on the configuration of the device, the number of light sources for each luminescent color may be changed. For example, there may be one red light source and one edge light source, and two blue light sources. Assuming that the amount of dimming of each light source (red, green, and blue) of the light emitting unit 4 necessary to obtain the desired color temperature when each light source is one is 1:1:1, the liability is If only two light sources are used, it is necessary to set the amount of light adjustment to 1:1:0.5. Alternatively, even if there is only one light source, if light sources with different luminous efficiencies are used, it is necessary to adjust the amount of light control. According to the conventional configuration, it is necessary to rewrite the data in the mixture ratio setting section 2 to adjust the amount of dimming in the case described above, and it is necessary to adjust the data in the mixing ratio setting section 2 to correspond to changes in the state (conditions) of the light source of the light emitting section. It was difficult. The present invention aims to solve the above-mentioned problems, and provides a color adjustment that allows the required amount of light adjustment to be obtained in response to changes in the state of the light source of the light emitting section without rewriting the data in the mixture ratio setting section. It is intended to provide control equipment.

[Means to solve the problem]

In order to achieve the above object, the present invention includes a light emitting unit including a plurality of light sources emitting light of different colors, a color selection unit that selects the color temperature of light emitted from the light emitting unit, and a color selection unit that selects the color temperature of light emitted from the light emitting unit. A mixing ratio setting section in which the mixing ratio necessary to obtain the color temperature selected in the color selection section for the emitted color is stored in advance, and the above mixing ratio is set according to the state of the light source for each emitted color in the light emitting section. It also includes a light emission amount correction section that corrects the amount of light and inputs it to the light emission section.

[Effect]

According to the above configuration, since the light emission amount correction section corrects the mixture ratio set in the mixture ratio setting section according to the state of the light source for each emission color in the light emitting section, the mixture ratio stored in the mixture ratio setting section is corrected. By performing correction in the light emission amount correction section according to the state B (condition) of the light source in the light emitting section without changing the ratio, it is possible to correspond to the state of the light source in the light emitting section.

[Embodiment 1] The basic configuration of the present invention is as shown in FIG. 1, and is different from the conventional configuration shown in FIG.
The 0 light emission amount correction section 3 differs in that a light emission amount correction section 3 is inserted between the toning signal generation section 5 and the color adjustment signal generation section 5. The amount of light adjustment is corrected to match the state of the light source. FIG. 2 is a specific circuit diagram corresponding to the block diagram shown in FIG. The data stored in is output to the light emission amount correction section 3. The mixture ratio setting unit 2 stores as data the mixture ratio necessary to obtain the illumination color from the light emitting unit 4 as a color mixture of the emission colors of the light sources. For example, if the light emitting unit 4 is equipped with light sources of three colors: red, edge, and blue, the mixing ratio of red, green, and blue is required to achieve the desired color temperature of the light emitted from the light emitting unit 4. This is stored in the mixture ratio setting unit 2 as coordinate data of a chromaticity diagram. The light emission amount correction section 3 includes a divider 7. ,7. ,7. and divider 7. ,7G,7. Divisor setting switch for inputting the divisor for 8. ．． 8°, 8. It is made up of. That is,
The light emitting unit 4 includes one red light source 11o and one green light source 11G3.
．． 2 pieces of 11oz, blue light source 11. ,．． 11-2.11
-3, each divisor setting switch 8
11.8o, 8. Then, divide the numbers 1, 2, and 3 respectively.
[fi7. ．． 7° and 7□, and the data read from the mixing ratio setting section 2 is 1.2.3, respectively.
It will be divided by As a result, if the mixture ratio read from the mixture ratio setting section 2 is 1:1:l, the output of the light emission amount correction section 3 will be 1:0.5:0.33. Here, the mixture ratio setting section 2 may use a storage element other than the ROM, and the light emission amount correction section 3 may use a conversion table or the like based on the ROM of the divider. The output of the light emission amount correction section 3 is sent to a toning signal generation section 9 provided for each light emission color. , 9°79. The amount of dimming determined through the lighting circuits 10, 10.
．． 10. are input to each light source 11. of the light emitting unit 4. ~11s
, are turned on with a desired amount of light. Here, the configuration of the light emitting section 4 and the toning signal generating section 9 are explained. 9. Depending on the ellipse of 9@, the lighting circuit 10-. 10c
. The outputs of the toning signal generating sections 9m, 9a, 9m may be input directly to the light emitting section 4 without using the toning signal generating sections 97, 9°, 9.10. The toning signal generated from the toning signal may be a phase control signal, a duty ratio control signal (PWM control, etc.), an analog signal, etc., and the toning signal transmission form may be either serial transmission or parallel transmission. In addition, the light source 11. ．． At 11° and 11°, fluorescent lamps,
A combination of fluorescent lamps and color filters, colored light bulbs,
Any combination of a white light bulb and a color filter may be used. According to the above-mentioned configuration, when the number of light sources of each emission color of the light emitting unit 4 changes, the divisor setting switch 80.8°, 8. This can be done by changing the divisor set to . As a result, even if the state of the light emitting section 4 changes, it can be easily handled without rewriting the data in the mixture ratio setting section 2.

Embodiment 2 In this embodiment, as shown in FIG. 3, an address setting switch AS is used in the color selection section 1. Since the mixture ratio setting section 2 uses an 8-bit ROM, the color selection section 1 uses two 4-bit address setting switches AS to specify the upper 4 bits and lower 4 bits, respectively. It is. The mixture ratio setting section 2 stores data necessary for setting the illumination color by the light emitting section 4 to a desired color temperature. For example, the light emitting unit 4 is a light source 11 with three colors of red, green, and blue. ．． 11o
, 11@, each light source 11.11. ．． 11 colors are (0,56840,3435), (0,3
577,0,5102), (0°1536.0.100
9). At this time, if the color temperature of the light emitting section 4 is to be 5000°K, each light source 11.
．． The light intensity ratio of 11° and 11♂ is 51:68:8, and if you want the color temperature to be 6500°K, it will be 46:69.8.
2, such a light 1 ratio is stored in the mixing ratio setting unit 2. Light emission amount correction unit 12M, 12°12, corresponding to each light emission color;
are connectors 13. and 13., respectively. ．． 1311+, which is removably connected via the 13 islands. Therefore, the light source 11 of each emission color of the light emitting unit 4. ．． 11°, 11. When the rated power and number of light sources 11. ．． 11. Light emission amount correction unit 12 according to the state of 11. ．． 12. . By connecting 126, it is possible to respond to changes in the state of the light emitting section 4. For example, light sources 11, . 11.
．． 11m, two red fluorescent lamps each emitting 560 lumens at 40W, and 1220 lumens at 20W.
One 40W green fluorescent lamp that produces a luminous flux of lumens.
1 blue fluorescent lamp that produces a luminous flux of 1020 lumens
In this case, if the color temperature of the illumination color from the light emitting unit 4 is set to 5000° and the total luminous flux is set to 1500 lumens, the luminous flux of red, green, and blue will be 600 lumens, SOO lumen, Since it is 100 lumens, the amount of light adjustment for each color must be set to 54%, 49%, and 10%. Therefore, the amount of light emission correction section 12. ．． 12o, 1
:L, the mixture ratio 51:68:8 stored in the mixture ratio setting unit 2 is set to the light source 11. ．． 11. ．． 11. The light emission amount correction unit 12. ．． 12c and 12m need only have a predetermined function table. Specifically, the light emission amount correction unit 12. ．． 12c, 12. are ovalized in ROM, for example, "51" for red.
The value "54" is stored at the address , and the value stored at the address designated by the output value from the mixture ratio setting section 2 is set as the output value. Further, each light source 1111.11°, 11. When only the light emission amount is changed without changing the emission color, the light emission amount correction section 12. ．． For example, if you change the green light source 11° from 20W to 40W and the luminous flux changes from 1220 lumens to 3070 lumens, you will get the same color temperature. For example, change the dimming amount from 49% to 26%.
%. Therefore, when using the light emitting section 4 with such a configuration, a function table that converts "68" to "26" should be created as the light emission amount correction section 12° corresponding to green. All you have to do is use what you have. At this time, other light emission amount correction units 12. . No changes are required for 12m. Light emission amount correction section 12. ．． 12a, 12. The data outputted by the toning signal generator 9. ,9. ．． 9@ is entered,
Each light source 11. with the specified dimming amount. , 11°, and 1111 are lit. In the case of this embodiment, since the mixing ratio setting section 2 is 8 bits, it is possible to select 64 color temperatures.
For example, if you prepare 10 types of mixing ratio setting sections 2, you can select up to 640 different color temperatures.As a configuration of 6 light emitting sections 4, 5FI!
If a similar device is prepared, the light emission amount correction section 12
．． ．． 12c, 12. It is only necessary to prepare 5 types of combinations. Therefore, in total, 50M combinations are possible by combining 15 types of elements1.
In the conventional configuration in which the light emission amount correction sections 12*, 12°, and 121 were not provided and the mixture ratio setting section 2 had data regarding the configuration of the light emitting section 4, it would take 50 types of mixture ratio setting sections 2 to obtain the same combination. This clearly leads to a reduction in cost compared to the previous version that would have been required. Effect of the Invention 1 As described above, the present invention corrects the mixture ratio set in the mixture ratio setting section according to the state of the light source for each emission color in the light emitting section by the light emission amount correction section. By performing correction in the light emission amount correction section in accordance with the state R (condition) of the light source in the light emitting section without changing the mixture ratio stored in the section, it is possible to make it correspond to the state of the light source in the light emitting section. There is an advantage.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing a first embodiment of the present invention, Fig. 2 is a circuit diagram of the same as above, Fig. 3 is a circuit diagram showing a second embodiment of the present invention, and Fig. 4 is a block diagram showing a conventional example. be. ]...Color selection section, 2...Mixing ratio setting section, 3...Emission amount setting section, 4...Light emission section. Agent Patent Attorney Ishi 1) Long 7 [[ 2nd Lj 1 Color selection section 2 Mixture ratio setting section 3-zu 1-) to 11j Toro 1 fixed section

Claims (1)

[Claims] (1) a light emitting unit including a plurality of light sources emitting light of different colors; a color selection unit that selects the color temperature of light emitted from the light emitting unit;
A mixing ratio setting section that stores in advance the mixing ratio necessary to obtain the color temperature selected in the color selection section for the emission color of each light source in the light emitting section, and a mixing ratio setting section that stores in advance the mixing ratio necessary to obtain the color temperature selected in the color selection section for the emission color of each light source in the light emitting section, and the state of the light source for each emission color in the light emitting section. A color toning control device comprising: a light emission amount correction unit that corrects the mixing ratio and inputs the mixture ratio to the light emission unit.