JP2010062101A - Light source device for illumination, and illumination device equipped with it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light source device for illumination carrying out changing colors of illumination light rapidly, gradually, and smoothly, and an illumination device equipped with this. <P>SOLUTION: The light source device for illumination 1 includes a light-emitting diode row 2 in which red light-emitting diode 2a are electrically connected and arranged mutually, a light-emitting diode row 3 in which white light-emitting diode 3a of emitted light different from that of the red light-emitting diode 2a are electrically connected and arranged mutually, the light-emitting diode row 4 in which green light-emitting diode 4a of emitted light different from that of the white light-emitting diode 3a are electrically connected and mutually arranged, and an insulator 5 in which the light-emitting diode rows 2, 3, 4 are juxtaposed. Light emission of the plurality of light-emitting diodes 2a of the light-emitting diode row 2 is separately and independently controlled against light emission of the plurality of light-emitting diodes 3a of another light-emitting diode row 3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an illumination light source device suitable for use in an illumination device such as a spotlight for illuminating a television studio, a photo studio, a stage, or the like, and an illumination device including the illumination light source device.

JP 2008-91305 A JP 2007-52957 A

  In general, an illumination device such as a spotlight using an incandescent bulb as a light source is known. However, since the incandescent bulb has a short life and generates a large amount of heat, for example, in Patent Documents 1 and 2, An illuminating device using a light emitting diode (LED) as a light source has been proposed. In Patent Document 1, all LEDs that emit light of the same color, such as white, can be used, or a white LED that emits white and a colored LED that emits red, blue, or other colored light. It is described that they can be used together.

  By the way, since the color change of the illumination light in such an illuminating device is performed by the light source through the color filter, it is difficult to quickly change the color of the illumination light, and it is also difficult to change the color of the illumination light gradually and smoothly. is there.

  The present invention has been made in view of the above-described points, and an object of the present invention is to provide an illumination light source device that makes it possible to quickly and gradually change the color of illumination light quickly and gradually. Another object is to provide a lighting device.

  The illumination light source device according to the present invention includes a light emitting diode array in which a plurality of light emitting diodes are electrically connected to each other, and a plurality of light emission colors different from the light emission colors of the plurality of light emitting diodes in the light emitting diode array. A plurality of light-emitting diodes in the light-emitting diode array, comprising: another light-emitting diode array in which diodes are electrically connected to each other; and an insulator in which the light-emitting diode array and the other light-emitting diode arrays are juxtaposed. The light emission is controlled independently of the light emission of the plurality of light emitting diodes in the other light emitting diode rows.

  According to the illumination light source device of the present invention, in particular, a light emitting diode array in which a plurality of light emitting diodes are electrically connected to each other, and a light emitting color different from the light emitting colors of the plurality of light emitting diodes in the light emitting diode array The plurality of light emitting diodes are juxtaposed with each other in a state in which they are insulated from each other by an insulator. Since the light emission of the plurality of light emitting diodes of the other light emitting diode rows is controlled separately and independently, the light emission colors of the light emitting diode rows and the other light emitting diode rows can be harmonized as desired. The color of the light emitted from the illumination light source device can be freely changed, and the color change of the illumination light can be changed quickly and gradually smoothly. It makes it possible.

  In a preferred example of the illumination light source device of the present invention, the plurality of light emitting diodes of the light emitting diode row and the other light emitting diode row are arranged in the radiation direction, and each of the light emitting diode row and the other light emitting diode row is Are juxtaposed with each other in the circumferential direction.

  In a preferred example of the illumination light source device of the present invention, one of the two poles of the light-emitting diode array and the other light-emitting diode array is composed of a common pole located in the center with respect to the radiation direction. The other of the two poles of the LED array consists of separate and independent poles located radially away from the common pole. According to such a preferable example, it is possible to arrange light emitting diode rows and other light emitting diode rows that can be controlled independently from each other in a dense manner, and thus it is possible to secure a sufficient amount of light emission and a light source for illumination. The device can be made compact.

  In a preferred example of the illumination light source device of the present invention, the first light emitting diode row as the light emitting diode row, the second light emitting diode row as the other light emitting diode row with respect to the first light emitting diode row, and the other light emitting diode row with respect to the second light emitting diode row. A third light emitting diode line is provided as a light emitting diode line, and the first light emitting diode line has a light emission color different from that of the third light emitting diode line. According to such a preferable example, more various emission colors can be obtained. For example, an additive color mixture in which three primary colors of red, green, and blue are mixed can be realized.

  In a preferred example of the illumination light source device of the present invention, the second light emitting diode array is disposed between the first light emitting diode array and the third light emitting diode array.

  In a preferred example of the illumination light source device of the present invention, each of the plurality of light emitting diodes of the first light emitting diode row is made of a red light emitting diode, and each of the plurality of light emitting diodes of the second light emitting diode row is made of a white light emitting diode, Each of the plurality of light emitting diodes of the third light emitting diode row is formed of a green or blue light emitting diode. In such a preferable example, it is possible to obtain a natural light emission color with sufficient light quantity and without color unevenness.

  The illumination device of the present invention includes the above-described illumination light source device of the present invention in a light source section. According to such an illuminating device, the discoloration of the illumination light can be quickly and gradually discolored smoothly.

  ADVANTAGE OF THE INVENTION According to this invention, the light source device for illumination which makes it possible to change discoloration of illumination light quickly and gradually smoothly, and an illuminating device provided with the same can be provided.

  Next, the present invention will be described in more detail based on an example of a preferred embodiment shown in the drawings. The present invention is not limited to these examples.

  1 and 2, the illumination light source device 1 of this example includes a light emitting diode array 2 in which three red light emitting diodes 2a as a plurality of light emitting diodes are electrically connected to each other, and three light emitting diode rows 2 are arranged. A plurality of white light emitting diodes 3a as a plurality of light emitting diodes of light emission colors different from the light emission color of the red light emitting diode 2a, and three white light emitting diodes. A plurality of green or blue light emitting diodes of light emission color different from the light emission color of the diode 3a, in this example, three light emitting diodes 4a arranged in an electrically connected manner, and the light emitting diode row A front-view circular insulator 5 in which 2, 3 and 4 are juxtaposed, and an attachment member 6 to which the insulator 5 is attached and attached to the lighting device; That.

  As shown in FIGS. 1 and 2, the light emitting diode array 2 includes three red light emitting diodes 2 a arranged in the radiation direction B, one pole (electrode) 11 located at the center O, and the radiation direction B from the center O. It is the row | line | column which consists of the other pole (electrode) 12a which was distant. The three red light emitting diodes 2a are sandwiched between the poles 11 and 12a in the radiation direction B and are equally spaced from each other. Each of the three red light emitting diodes 2a has a power consumption of about 1 W to 2 W and has a planar light emitting surface 13.

  The light emitting diode row 3 is juxtaposed adjacent to the light emitting diode row 2 in the circumferential direction A. The light-emitting diode array 3 includes three white light-emitting diodes 3a arranged in the radiation direction B, a common pole 11 with the light-emitting diode array 2, and the other pole (electrode) 12b spaced from the center O in the radiation direction B. It is. The three white light emitting diodes 3a are sandwiched between the poles 11 and 12b in the radiation direction B and are equally spaced from each other. Each of the three white light emitting diodes 3a has a power consumption of about 1 W to 2 W and has a planar light emitting surface 13. The light emitting diode array 3 is arranged between the light emitting diode arrays 2 and 4 in the circumferential direction A.

  The light emitting diode rows 4 are juxtaposed adjacent to the light emitting diode rows 3 in the circumferential direction A. The light emitting diode row 4 includes three green light emitting diodes 4a arranged in the radiation direction B, a common pole 11 with the light emitting diode rows 2 and 3, and the other pole (electrode) 12c away from the center O in the radiation direction B. It is a column. The three green light emitting diodes 4a are sandwiched between the poles 11 and 12c in the radiation direction B and are equally spaced from each other. Each of the three green light emitting diodes 4a has a power consumption of about 1 W to 2 W and has a planar light emitting surface 13.

  Of the three red light emitting diodes 2a, the red light emitting diode 2a located on the inner side near the center O, of the three white light emitting diodes 3a, the white light emitting diode 3a located on the inner side near the center O, and the three green light emitting diodes The green light emitting diodes 4a located on the inner side of the light emitting diodes 4a near the center O are arranged side by side in the circumferential direction A, and outside the center O of the three red light emitting diodes 2a. The red light emitting diode 2a located, the white light emitting diode 3a located outside the center O of the three white light emitting diodes 3a, and the outside separated from the center O of the three green light emitting diodes 4a. The green light emitting diodes 4a are arranged side by side in the circumferential direction A, and are located in the middle of the three red light emitting diodes 2a. The red light emitting diode 2a to be placed, the white light emitting diode 3a located in the middle of the three white light emitting diodes 3a, and the green light emitting diode 4a located in the middle of the three green light emitting diodes 4a are arranged in the circumferential direction A. The poles 12a, 12b and 12c are arranged side by side in the circumferential direction A. In this example, the number of red light emitting diodes 2a, white light emitting diodes 3a, and green light emitting diodes 4a arranged in each of the light emitting diode rows 2, 3 and 4 is the same.

  The insulator 5 has a disk-shaped main body 15 and a circular surface 16 exposed from the disk-shaped main body 15. In the present example, the planar surface 16 is provided with four aggregate portions each including the light emitting diode rows 2, 3, and 4, and one of the aggregate portions is arranged in a quarter region of the surface 16. The light emitting diode row 2 and the light emitting diode row 3 are juxtaposed side by side in the circumferential direction A at a portion where the collective portions are adjacent to each other. Thus, four light emitting diode rows 2, 3 and 4 are arranged on the surface 16, respectively. The surface 16 may be plated or the like so as to reflect light. The light emitting surfaces 13 of the red light emitting diode 2a, the white light emitting diode 3a, and the green light emitting diode 4a are flush with each other.

  Each of the pole 11 and the poles 12a, 12b, and 12c is connected to a conducting wire 20 extending from the back surface of the illumination light source device 1. The insulator 5 is covered with a cylindrical case 21. The case 21 may be equipped with a lens arranged so as to cover the surface 16, for example, an acrylic Fresnel lens. The substantially annular mounting member 6 is provided with an insulator 5 and a case 21.

  The light emission control of each of the red light emitting diode 2a, the white light emitting diode 3a, and the green light emitting diode 4a is performed by controlling the current supplied to them, for example, so-called PWM control. The three red light emitting diodes 2a in the light emitting diode row 2 are controlled in light emission based on increase / decrease in current supplied through the poles 11 and 12a, and the three white light emitting diodes 3a in the light emitting diode row 3 are The light emission is controlled based on the increase / decrease of the current supplied through 11 and 12b, and the three green light emitting diodes 4a of the light emitting diode row 4 are changed based on the increase / decrease of the current supplied through the poles 11 and 12c. Light emission is controlled. The light emission of the light-emitting diode arrays 2, 3 and 4 is controlled independently of each other, whereby the illumination light source device 1 can change the illumination light quickly and gradually smoothly. In addition, the illumination light source device 1 of this example includes a plurality of light emitting diode rows 2, a plurality of light emitting diode rows 3, and a plurality of light emitting diode rows 4. The light emission control of the plurality of light emitting diode arrays 2 may be performed in common with each other, but may be controlled independently of each other. The light emission control of the plurality of light emitting diode arrays 3 may be performed in common with each other, but may be controlled independently of each other. The light emission control of the plurality of light emitting diode arrays 4 may be performed in common with each other, but may be controlled independently of each other. In this example, the illumination light source device 1 has power consumption of about 36 W to 72 W, for example, about 60 W, but has a light amount equivalent to that of a light source device (not shown) with power consumption of about 500 W equipped with an incandescent bulb.

  In this example, the illumination light source device 1 includes a red light emitting diode 2a, a white light emitting diode 3a, and a green light emitting diode 4a. However, instead of or in addition to these, a blue light emitting diode is included. May be. In addition, the illumination light source device 1 may include a light emitting diode row having a green light emitting diode 3 a instead of the light emitting diode row 3 and a light emitting diode row having a blue light emitting diode instead of the light emitting diode row 4.

  The illumination light source device 1 of this example may be mounted on the light source unit 31 of the spotlight 30 as the illumination device shown in FIG. 3, for example, or a plurality of flat lights 40 as the illumination device shown in FIG. The light source unit 41 may be attached to at least one light source unit 41. 3 includes a front housing 33 provided with a focus lens 32, a rear housing 34 provided with a light source unit 31, and a front housing 33 and a rear housing 34. And a middle housing 35 that surrounds a rear portion of the front housing 33 and a front portion of the rear housing 34, and the front housing 33 is a middle housing 35. The rear casing 34 is movable in the front-rear direction relative to the middle casing 35.

  According to the illumination light source device 1 of this example, a plurality of light emitting diode rows 2 (3) in which a plurality of light emitting diodes 2a (3a) are electrically connected to each other and a plurality of light emitting diode rows 2 (3a) are arranged. A plurality of light emitting diodes 3a (4a) having a light emission color different from the light emission color of the light emitting diode 2a (3a), and another light emitting diode row 3 (4) in which the light emitting diode rows are electrically connected to each other 2 (3) and an insulator 5 in which another light emitting diode row 3 (4) is juxtaposed, and the light emission of the plurality of light emitting diodes 2a (3a) of the light emitting diode row 2 (3) Since the plurality of light emitting diodes 3a (4a) of the light emitting diode row 3 (4) are controlled separately and independently, the light emitting diode row 2 (3) and the other light emitting diode row 3 ( 4) each By controlling the light emission separately and independently, the light emission colors of the light-emitting diode array 2 (3) and the other light-emitting diode arrays 3 (4) can be harmonized as desired. Thus, it is possible to change the color of the illumination light quickly and gradually smoothly.

  According to the illumination light source device 1, the plurality of light emitting diodes 2 a (3 a) in the light emitting diode array 2 (3) and the plurality of light emitting diodes 3 a (4 a) in the other light emitting diode array 3 (4) The light emitting diode row 2 (3) and the other light emitting diode row 3 (4) are juxtaposed in the circumferential direction A.

  According to the illumination light source device 1, one of the two poles of the light emitting diode row 2 (3) and the other light emitting diode row 3 (4) is from the common pole 11 located at the center O with respect to the radiation direction B. Thus, the other of the two poles of the light emitting diode row 2 (3) and the other light emitting diode row 3 (4) is a separate independent pole 12a (12b) located away from the common pole 11 in the radial direction B. ) And 12b (12c), the light emitting diode rows 2 (3) and the other light emitting diode rows 3 (4) that can be controlled independently of each other can be arranged densely, and thus more fully The light emission amount can be ensured and the illumination light source device 1 can be made compact.

  According to the illumination light source device 1, the light emitting diode row 2 as the first light emitting diode row, the light emitting diode row 3 as the second light emitting diode row, and the light emitting diode row 4 as the third light emitting diode row are provided. Since the LED array 2 has a different emission color from the LED array 4, more various emission colors can be obtained. For example, an additive color mixture that mixes three primary colors of red, green, and blue is realized. obtain.

  According to the illuminating light source device 1, each of the plurality of light emitting diodes of the light emitting diode array 2 includes the red light emitting diode 2a, and each of the plurality of light emitting diodes of the light emitting diode array 3 includes the white light emitting diode 3a. Since each of the four light emitting diodes is composed of a green light emitting diode 4a or a blue light emitting diode, a natural light emitting color having a sufficient amount of light and having no unevenness in color can be obtained particularly by the white light emitting diode 3a.

It is front view explanatory drawing of the example of embodiment of this invention. It is side view explanatory drawing of the example shown in FIG. It is explanatory drawing of the illuminating device in which the light source device for illumination of the example shown in FIG. 1 is used. It is explanatory drawing of the other illuminating device in which the light source device for illumination of the example shown in FIG. 1 is used.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Light source device 2, 3, 4 Light emitting diode row | line | column 5 Insulator 6 Mounting member 30 Spotlight 40 Flat light

Claims (7)

  A light-emitting diode array in which a plurality of light-emitting diodes are electrically connected to each other, and a plurality of light-emitting diodes having light emission colors different from those of the light-emitting diodes in the light-emitting diode array are electrically connected to each other. Another light emitting diode array arranged, and an insulator in which the light emitting diode array and the other light emitting diode array are juxtaposed, and the light emission of the plurality of light emitting diodes of the light emitting diode array A light source device for illumination that is controlled separately and independently for light emission of the plurality of light emitting diodes.   The plurality of light emitting diodes of each of the light emitting diode row and the other light emitting diode row are arranged in a radial direction, and each of the light emitting diode row and the other light emitting diode row is juxtaposed in the circumferential direction. The light source device for illumination according to 1.   One of each of the poles of the light emitting diode array and the other light emitting diode array is composed of a common pole located in the center with respect to the radiation direction, and the other of the two poles of the light emitting diode array and the other light emitting diode array is the other. The illumination light source device according to claim 2, wherein the illumination light source device is composed of separate and independent poles that are located in a radial direction away from the common pole.   A first light emitting diode row as a light emitting diode row, a second light emitting diode row as another light emitting diode row for the first light emitting diode row, and a third light emitting diode row as another light emitting diode row for the second light emitting diode row The illumination light source device according to any one of claims 1 to 3, wherein the first light-emitting diode array has a light emission color different from that of the third light-emitting diode array.   The illumination light source device according to claim 4, wherein the second light emitting diode row is disposed between the first light emitting diode row and the third light emitting diode row.   Each of the plurality of light emitting diodes of the first light emitting diode row is made of a red light emitting diode, each of the plurality of light emitting diodes of the second light emitting diode row is made of a white light emitting diode, and each of the plurality of light emitting diodes of the third light emitting diode row. The illumination light source device according to claim 4 or 5, comprising a green or blue light emitting diode.   The illuminating device provided with the light source device for illumination described in any one of Claim 1 to 6 in the light source part.

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