JP2012138238A - Color-tunable led luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a color-tunable LED luminaire capable of readily changing irradiation colors according to an irradiation object while eliminating the necessity of stocking a plurality of fluorescent lamps, and also having few problems due to heat generation.SOLUTION: The color-tunable LED luminaire includes a plurality of LED rows having different irradiation colors, and a volume-type variable resistor capable of changing a value of resistance is provided for each of the LED rows. The LED rows preferably have three rows, among which one may be a blue LED row, one may be a red LED row and the other may be a green LED row.

Description

  The present invention relates to an LED lighting device, and more particularly to an LED lighting device that can effectively illuminate food or the like.

Conventionally, in order to make food look delicious or fresh, the color to be irradiated is changed depending on the type of food. Specifically, for example, for meat, use a fluorescent light with a strong red color to emphasize the original red color of raw meat, and in the case of vegetables, use a fluorescent light with a slightly strong blue color to emphasize freshness, For the side dishes etc., fluorescent lamps with a strong orange color are used to emphasize the warmth of freshly made dishes.
In addition, fluorescent tanks of various colors, such as red and blue, are also prepared in the aquarium for breeding tropical fish and saltwater fish for production in the aquarium.
As described above, colored fluorescent lamps have been conventionally used for various scenes.
However, in order to enhance the production effect, a fluorescent lamp of a color suitable for the object is necessary as described above. For example, in the case of a fluorescent lamp for illuminating foods arranged on a display shelf, The problem arises that the fluorescent lamp must be changed every time the product placed on the shelf is changed.
Also, for example, even in the case of a fluorescent lamp for production in the aquarium, in order to change the atmosphere of the aquarium, prepare multiple-color fluorescent lamps, and change the fluorescent lamp each time the aquarium atmosphere is changed. There is a problem of having to.
As described above, when using colored fluorescent lamps, it is necessary to prepare fluorescent lamps of a plurality of colors, so there is a cost and a place to store unused fluorescent lamps. Since this is necessary, there is a problem in terms of space, and further, it is forced to perform the troublesome work of having to replace the fluorescent lamp as necessary.
In order to solve the above problems, a colored floodlight is fixed to a mounting bracket of a fluorescent lamp that illuminates an exhibition display such as a sample display window or a product display case of a vending machine, and the fluorescent lamp is passed through the floodlight. There has been proposed a display illumination device that can irradiate a display with color illumination light by irradiating the display with light (Patent Document 1).

JP 2003-178359 A

According to the display illumination device described above, since the light of the fluorescent lamp is colored through the light projection plate, there is an effect that it is not necessary to stock a plurality of colored fluorescent lamps.
However, even in the above-described illumination device, when changing the color, the color of the light projection plate has to be changed, so that there remains a problem that it takes time.
There is also a problem of heat generation of the fluorescent lamp itself. Specifically, for example, when the irradiation object is food, particularly fresh fish, raw meat, vegetables, etc., naturally the heat of the fluorescent lamp is not preferable, and even when the irradiation object is a water tank, Since the water temperature in the water tank rises due to the heat generated by the lamp, it is not preferable.
In view of the above-mentioned conventional problems, the applicant can easily change the irradiation color according to the irradiation object without having to stock a plurality of fluorescent lamps, and there are few problems due to heat generation. It aims at providing a color tone type | mold LED lighting fixture.

In order to achieve the above-described object, a color tone LED lighting device according to the present invention includes a plurality of LED rows of different colors, and a volume type variable resistor capable of changing a resistance value for each LED row. It is characterized by providing.
The LED rows are preferably three rows, one can be a blue LED row, one can be a red LED row, and the other can be a green LED row.

  The color tone LED lighting device according to the present invention includes a plurality of LED rows of different colors, and a volume type variable resistor that can change the resistance value for each LED row. Therefore, the user can change the irradiation color according to the irradiation object simply by adjusting the volume of the variable resistor, so there is no need to stock multiple fluorescent lamps. The irradiation color can be changed easily. Further, since the LED is used as the light source, there are few problems due to heat generation such as a fluorescent lamp, and power consumption can be suppressed.

It is a partial cross section schematic bottom view of the color tone type | mold LED lighting fixture 1 which concerns on this invention. It is the schematic which shows the structure of the 2nd Example of the color tone type | mold LED lighting fixture which concerns on this invention.

  Hereinafter, embodiments of a color tone LED lighting device according to the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a partially sectional schematic bottom view of a first embodiment of a color tone LED lighting device 1 according to the present invention.
Reference numeral 2 in the drawing denotes a main body case.
On the bottom surface of the main body case 2, a red LED row 4 in which a plurality of red LEDs 3 are arranged in a straight line, a green LED row 6 in which a plurality of green LEDs 5 are arranged in a straight line, and a blue color in which a plurality of blue LEDs 7 are arranged in a straight line An LED array 8 is provided.
Further, a control device 9 for controlling the brightness of the LEDs 3, 5, 7 constituting the LED rows 4, 6, 8 is provided inside the main body case 2. The control device 9 includes a current driving circuit 10 that controls a current supplied to each LED 3 in the red LED row 4, a current driving circuit 11 that controls a current supplied to each LED 5 in the green LED row 6, and a blue LED row. A current driving circuit 12 that controls the current supplied to each of the eight LEDs 7 is provided. The LEDs 3, 5 and 7 are, for example, 5φ ultra-high brightness bullet type LEDs.
Each of the current drive circuits 10, 11, and 12 includes volume type variable resistors 10a, 11a, and 12a, and the resistance values are adjusted by these volume type variable resistors 10a, 11a, and 12a, whereby the LEDs 3, 5, and 7 are adjusted. Is configured to be adjustable for each of the LED rows 4, 6 and 8. 1 indicates a resistance adjustment dial of the volume type variable resistor 10a provided in the main body case 2, and reference numeral 11b indicates a resistance adjustment dial of the volume type variable resistor 11a provided in the main body case 2. Reference numerals 12b denote resistance adjustment dials of the volume type variable resistor 12a provided in the main body case 2, respectively.
Guide members 15 are provided on the left and right side walls of the main body case 2, and support members 16 are slidably provided on the respective guide members 15.
A terminal 17 that can be attached to a fluorescent lamp socket (not shown) of an existing road lamp for fluorescent lamps is provided at the tip of each support member 16.
Further, inside each support member 16, a power supply line 18 having one end connected to the terminal 17 passes, and these power supply lines 18 are connected to the current drive circuits 10, 11 and 12 in the control device 9. ing.
For example, an existing road lighting for a fluorescent lamp uses an applied voltage of 100 V or 200 V depending on the fluorescent lamp to be used, and is supplied to the LEDs 3, 5 and 7 by the current drive circuits 10, 11 and 12. The luminance according to the resistance value can be secured by setting the current to be constant.
Each guide member 15 is provided with a bolt 19 for fixing the support member 16 at a predetermined position.
According to the color tone type LED illuminator configured as described above, the LED rows 4, 6, and 8 including the three color LEDs 3, 5, and 7 are provided, and the brightness of each of the LED rows 4, 6, and 8 is independent. Therefore, it is not necessary to stock a plurality of fluorescent lamps, and the irradiation color can be easily changed according to the irradiation object. Further, since the LED is used as the light source, there are few problems due to heat generation such as a fluorescent lamp, and power consumption can be suppressed.
Moreover, since the color tone type LED lighting fixture which concerns on a present Example has provided the supporting member 16 in which the terminal 17 was provided in the guide member 15 of the main body case 2 so that sliding is possible, the position of the supporting member 16 is adjusted. Thus, the width of the entire LED lighting fixture can be adjusted to the width of the fluorescent lamp of the existing lighting fixture to be attached.
Therefore, regardless of the width between the lamp sockets of the existing fluorescent lamp luminaire, by adjusting the position of the support member 16, the width of the entire LED illuminator should be fixed. Since the width can be adjusted, the structure of the existing fluorescent lamp lighting fixture can be used as it is, and the lighting fixture can be changed from a fluorescent lamp to a color tone type LED lighting fixture capable of adjusting the color.

Next, a second embodiment of the color tone LED lighting device according to the present invention will be described with reference to FIG.
FIG. 2 is a schematic view showing the structure of a second embodiment of the color tone LED lighting device according to the present invention.
In the figure, reference numeral 21 denotes the entire color tone LED lighting device, and reference numeral 22 denotes a main body case.
The main body case 22 has a red LED row 24 in which a plurality of red LEDs 23 are arranged in a straight line, a green LED row 26 in which a plurality of green LEDs 25 are arranged in a straight line, and a blue LED row in which a plurality of blue LEDs 27 are arranged in a straight line. 28.
Further, a control device 29 that controls the brightness of the LEDs 23, 25, and 27 constituting the LED rows 24, 26, and 28 is provided outside the main body case 2. The control device 29 includes a current drive circuit 30 that controls a current supplied to each LED 23 of the red LED row 24, a current drive circuit 31 that controls a current supplied to each LED 25 of the green LED row 26, and a blue LED row. A current drive circuit 32 for controlling the current supplied to each of the 28 LEDs 27 is provided. The LEDs 23, 25 and 27 are, for example, 5φ ultra-high brightness bullet type LEDs.
Each of the current drive circuits 30, 31, and 32 includes volume type variable resistors 30a, 31a, and 32a, and the resistance values are adjusted by these volume type variable resistors 30a, 31a, and 32a, whereby the LEDs 23, 25, and 27 are adjusted. Is configured to be adjustable for each of the LED rows 24, 26, and 28.
2 indicates a resistance adjustment dial of a volume type variable resistor 30a provided in the control device 29. Reference numeral 31b indicates a resistance adjustment dial of the volume type variable resistor 31a provided in the control device 29. Reference numeral 32b denotes a resistance adjustment dial of a volume type variable resistor 32a provided in the control device 29.

  Further, in the above-described embodiment, the color tone type LED illuminator includes three LED arrays, that is, a red LED array, a blue LED array, and a green LED array. Without being limited, any color and any number can be set.

1 color tone LED lighting fixture 2 body case 3 red LED
4 Red LED row 5 Green LED
6 Green LED row 7 Blue LED
DESCRIPTION OF SYMBOLS 8 Blue LED row | line | column 9 Control apparatus 10 Current drive circuit 10a Volume type variable resistor 10b Resistance adjustment dial 11 Current drive circuit 11a Volume type variable resistor 11b Resistance adjustment dial 12 Current drive circuit 12a Volume type variable resistor 12b Resistance adjustment dial 15 Guide member 16 Support member 17 Terminal 18 Electrode supply line 19 Bolt 21 Color tone LED lighting device 22 Main body case 23 Red LED
24 Red LED row 25 Green LED
26 Green LED row 27 Blue LED
28 Blue LED array 29 Control device 30 Current drive circuit 30a Volume type variable resistor 30b Resistance adjustment dial 31 Current drive circuit 31a Volume type variable resistor 31b Resistance adjustment dial 32 Current drive circuit 32a Volume type variable resistor 32b Resistance adjustment dial

Claims (3)

A color tone LED illuminator comprising a plurality of LED rows of different colors, and a volume variable resistor capable of changing a resistance value for each LED row. A body case provided with the LED rows on the outer surface;
A plurality of current drive circuits including the volume type variable resistor provided inside the main body case and capable of adjusting the current value supplied to the LEDs of each LED row for each LED row;
A pair of left and right support members provided on both side surfaces of the main body case so as to be slidable in the width direction,
A terminal having a shape and a dimension that can be attached to a fluorescent lamp socket of an existing road illumination lamp is provided at the outer end of the support member,
Provided inside the support member is a power supply line for connecting the terminal and the current drive circuit,
The support member is slid in the width direction according to the width between the pair of left and right fluorescent lamp sockets of the lighting fixture to be attached, and the position of the support member can be fixed at an appropriate position. The color-type LED lighting device according to claim 1, wherein 3. The color LED lighting according to claim 1, wherein there are three LED rows, one is a blue LED row, one is a red LED row, and the other is a green LED row. Ingredients.

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