WO2021186851A1 - Dispositif électroluminescent - Google Patents

Dispositif électroluminescent Download PDF

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Publication number
WO2021186851A1
WO2021186851A1 PCT/JP2021/000160 JP2021000160W WO2021186851A1 WO 2021186851 A1 WO2021186851 A1 WO 2021186851A1 JP 2021000160 W JP2021000160 W JP 2021000160W WO 2021186851 A1 WO2021186851 A1 WO 2021186851A1
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WO
WIPO (PCT)
Prior art keywords
light emitting
emitting elements
row
annular
light
Prior art date
Application number
PCT/JP2021/000160
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English (en)
Japanese (ja)
Inventor
督教 鈴木
和昭 齋藤
Original Assignee
ミネベアミツミ株式会社
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Publication of WO2021186851A1 publication Critical patent/WO2021186851A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources
    • F21Y2113/10—Combination of light sources of different colours
    • F21Y2113/13—Combination of light sources of different colours comprising an assembly of point-like light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to a light emitting device.
  • the shape of the irradiation light is also rectangular.
  • the shape of the irradiation light may be required to be close to a round shape (including not only a circular shape but also an elliptical shape, the same applies hereinafter). ..
  • miniaturization is required, and the number of light emitting elements that can be used may be limited. However, when the number of light emitting elements is small, the shape of the irradiation light tends to be square.
  • the number of light emitting elements actually used is reduced when only one type of light emitting element is emitted, and the shape of the irradiation light is changed. It tends to be square.
  • an object of the present invention is to provide a light emitting device capable of making the shape of the irradiation light closer to a round shape.
  • the light emitting device of the present invention has an annular light emitting portion in which light emitting elements of a plurality of colors are arranged along a circle or an ellipse on a substrate, and a plurality of light emitting portions of the same color as the annular light emitting portion in a region inside the annular light emitting portion.
  • An inner light emitting unit in which the elements are arranged is provided, the light emitting intensity of the plurality of color light emitting elements is controlled for each color, and the plurality of color light emitting elements are arranged in the annular light emitting unit so as to repeat a predetermined order. It is characterized by that.
  • the inner light emitting portion is a first row portion formed by at least one row of element rows in which a plurality of the light emitting elements are arranged in a predetermined direction, and the plurality of the light emitting elements intersect with the first row portion. It is preferable to have a second row portion composed of at least one row of element rows arranged in such a manner.
  • the annular light emitting portion is at least one said in an intermediate portion located between a position where the element row of the first row portion is extended and a position where the element row of the second row portion is extended. It is preferable to have a light emitting element.
  • light emitting elements of a plurality of colors are arranged so as to repeat a predetermined order in each of the element rows of the first row portion and the second row portion.
  • the first row portion and the second row portion each include a plurality of rows of the element rows
  • the electrical connection portion includes an electrical connection portion for connecting the light emitting elements of the same color in series. It is preferable to have a connecting line connecting the light emitting elements arranged in a direction inclined with respect to the direction of the element row among the first row portion and the second row portion.
  • the inner light emitting portion has an inner annular portion in which the light emitting elements of a plurality of colors are arranged along the inside of the annular light emitting portion so as to repeat a predetermined order.
  • the square-shaped light emitting element is arranged along the circle, and the light emitting element is orthogonal to a line segment extending in the radial direction from the center of the circle and along the circle. It is preferable to have an orthogonal side.
  • FIG. 1 is an exploded perspective view of a light emitting device 1 according to an embodiment of the present invention
  • FIG. 2 is a plan view of a light emitting device main body 10 of the light emitting device 1.
  • the light emitting device 1 includes a light emitting device main body 10 and an accommodating portion 20 for accommodating the light emitting device main body 10.
  • the light emitting device main body 10 includes a flat plate-shaped substrate 2, a plurality of light emitting elements 3 and 4 provided on the substrate 2, and an electrical connection portion 5 formed on the substrate 2.
  • the accommodating portion 20 includes a cylindrical case body 200, a lens 201 provided at one end of the case body 200, and a heat sink 202 that closes the other end side of the case body 200 and contacts the light emitting device body 10. ..
  • the light emitting device 1 is used to irradiate a spot-shaped irradiation light toward an object or a target area, for example, and the light emitting elements 3 and 4 are connected to a power source and supplied to each of the light emitting elements 3 and 4. Power can be controlled. That is, the emission intensities of the two-color light emitting elements 3 and 4 are controlled for each color, and the emission intensity and the emission color of the light emitting device 1 as a whole are variable.
  • the light emitting elements 3 and 4 emit light, the light is condensed by the lens 201 and irradiated with the light.
  • the substrate 2 is along the XY plane
  • the directions orthogonal to each other in the XY plane are the X direction and the Y direction
  • the direction orthogonal to the XY plane is the Z direction.
  • the left side in FIG. 2 is one side in the X direction
  • the right side is the other side in the X direction
  • the upper side is one side in the Y direction
  • the lower side is the other side in the Y direction.
  • the substrate 2 is, for example, a printed circuit board, and a metal electrical connection portion 5 is formed on the insulating substrate, and a plurality of arrangement portions on which the light emitting elements 3 and 4 can be arranged are formed on the surface.
  • the arrangement portion formed on the substrate 2 may be formed in a concave shape, for example, and may be capable of positioning the light emitting elements 3 and 4.
  • the light emitting elements 3 and 4 are all LEDs, and their light emitting colors are different from each other.
  • the light emitting element 3 is a warm color LED
  • the light emitting element 4 is a cold color LED. That is, the light emitting device 1 is provided with two color light emitting elements 3 and 4 which are white and have different color temperatures. That is, "different colors” includes cases where the color temperatures are different.
  • some of the plurality of light emitting elements 3 and 4 are designated by the reference numerals “3” and “4”, but the shaded light emitting elements 3 are also related to the other light emitting elements. It is assumed that the white one is the light emitting element 4.
  • the electrical connection unit 5 has a first connection line 51 that connects a plurality of light emitting elements 3 in series, and a second connection line 52 that connects a plurality of light emitting elements 4 in series. Further, the first connection line 51 and the second connection line 52 are independently connected to the power source, and the power supplied to the plurality of light emitting elements 3 and the power supplied to the plurality of light emitting elements 4 can be obtained. It is designed to be controlled independently.
  • the detailed arrangement of the light emitting elements 3 and 4 will be described below.
  • a total of four light emitting elements 3 and 4 are arranged in the X direction to form an element row L1.
  • a total of four light emitting elements 3 and 4 are arranged in the X direction to form an element row L2.
  • the first row portion 6 is formed by arranging the two rows of element rows L1 and L2 in the Y direction.
  • the light emitting elements 3 and the light emitting elements 4 are alternately arranged in the element row L1, and the light emitting elements 3 and the light emitting elements 4 are alternately arranged in the element row L2.
  • the light emitting element 3 is arranged at the position on one side of the element row L1 in the X direction, and the light emitting element 4 is arranged at the position on the most side of the element row L2 in the X direction. That is, in the first row portion 6, light emitting elements 3 and 4 having different light emitting colors are arranged in the Y direction.
  • a total of four light emitting elements 3 and 4 are arranged in the Y direction to form an element row L3. Similarly, a total of four light emitting elements 3 and 4 are arranged in the Y direction to form an element row L4.
  • the second row portion 7 is formed by arranging the two rows of element rows L3 and L4 in the X direction.
  • the element rows L3 and L4 of the second row portion 7 are orthogonal to the element rows L1 and L2 of the first row portion 6, and a total of four light emitting elements 3 and 4 are shared at the intersecting portions.
  • the light emitting element 3 and the light emitting element 4 are arranged alternately in the element row L3, and the light emitting element 3 and the light emitting element 4 are arranged alternately in the element row L4.
  • the light emitting element 3 is arranged at the position on one side of the element row L3 in the Y direction, and the light emitting element 4 is arranged at the position on the most side of the element row L4 in the Y direction. That is, in the second row portion 7, light emitting elements 3 and 4 having different light emitting colors are arranged in the X direction.
  • the inner light emitting portion 8 is formed by the first row portion 6 and the second row portion 7.
  • the light emitting element 4 is arranged at the position L11 extending the element train L1 on one side in the X direction, and the light emitting element 3 is arranged at the position L12 extending on the other side in the X direction.
  • the light emitting element 3 is arranged at a position L21 extending the element train L2 on one side in the X direction, and the light emitting element 4 is arranged at a position L22 extending on the other side in the X direction.
  • the light emitting element 4 is arranged at a position L31 extending the element train L3 on one side in the Y direction, and the light emitting element 3 is arranged at a position L32 extending on the other side in the Y direction.
  • the light emitting element 3 is arranged at a position L41 extending the element train L4 on one side in the Y direction, and the light emitting element 4 is arranged at a position L42 extending on the other side in the Y direction.
  • a light emitting element 4 is provided in the intermediate portion PM23 located between the position L21 and the position L32, and a light emitting element 3 is provided in the intermediate portion PM42 located between the position L42 and the position L22.
  • the light emitting element 4 is provided in the intermediate portion PM14 located between the positions, and the light emitting element 3 is provided in the intermediate portion PM31 located between the positions L31 and the position L11.
  • the annular light emitting portion 9 is formed by a total of 12 light emitting elements 3 and 4 provided at the positions L11, L12, L21, L22, L31, L32, L41, L42 and the intermediate portions PM23, PM42, PM14, and PM31.
  • the plurality of light emitting elements 3 and 4 forming the annular light emitting portion 9 are arranged along the circumference of the circle C0 passing through each position and each intermediate portion, and the light emitting elements 3 and the light emitting elements 4 are alternately arranged ( That is, they are arranged so as to repeat a predetermined order).
  • the inner light emitting unit 8 is formed by arranging light emitting elements 3 and 4 having the same color as the light emitting elements 3 and 4 constituting the annular light emitting unit 9 in the inner region of the annular light emitting unit 9.
  • two-color light emitting elements 3 and 4 are alternately arranged in the X direction or the Y direction, including the light emitting elements 3 and 4 arranged at positions extended in the X direction or the Y direction, respectively. ..
  • the intermediate portion PM23 is adjacent to the light emitting element 4 at one end in the X direction of the element train L2 on the other side in the Y direction, and is X with respect to the light emitting element 4 at the other end in the Y direction of the element row L3. It is located closer to the circumference of the circle C0 than the virtual adjacent portion PN23 adjacent to one side in the direction. Further, the intermediate portion PM23 is provided with a light emitting element 4 having the same color as the light emitting element 4 located closest to the element rows L2 and L3.
  • the intermediate portions PM42, PM14, and PM31 are also located closer to the circumference of the circle C0 than the virtual adjacent portions PN42, PN14, and PN31, and are located closest to the element trains L1 to L4.
  • Light emitting elements 3 and 4 having the same color as the elements 3 and 4 are provided.
  • All the light emitting elements 3 and 4 are formed in a square shape (square shape).
  • the square shape of the light emitting elements 3 and 4 means that the shape of the light emitting surface is square, that is, the shape of the light emitting element means the shape of the light emitting surface.
  • all the light emitting elements 3 and 4 are arranged so that a pair of sides extend along the X direction and the other pair of sides extend along the Y direction.
  • the light emitting elements 3 and 4 at positions L11, L12, L21, L22, L31, L32, L41 and L42 have a pair of sides extending along the X direction and the other pair of sides extending in the Y direction.
  • the light emitting elements 3 and 4 of the intermediate portions PM23, PM42, PM14, and PM31 are arranged so as to extend along the sides, and their sides are inclined with respect to the X direction and the Y direction (for example, having an inclination angle of 45 °). ) Have been placed. That is, the light emitting elements 3 and 4 of the intermediate portions PM23, PM42, PM14, and PM31 have sides along the circumference of the circle C0.
  • the first connecting line 51 for connecting the light emitting elements 3 has connecting portions 511 to 514 for connecting the light emitting elements 3 arranged in the directions inclined in the X direction and the Y direction.
  • the connecting portion 511 connects the light emitting element 3 at the position L32 and the light emitting element 3 at the position L21.
  • the connection portion 512 is a light emitting element 3 at the other end in the Y direction of the element row L4, a light emitting element 3 shared by the element row L2 and the element row L3, and light emitting at one end in the X direction of the element row L1.
  • the element 3 and the light emitting element 3 of the intermediate portion PM31 are connected.
  • the connection portion 513 includes a light emitting element 3 of the intermediate portion PM42, a light emitting element 3 at the other end of the element row L2 in the X direction, a light emitting element 3 shared by the element row L1 and the element row L4, and an element row L3. Is connected to the light emitting element 3 at one end on one side in the Y direction.
  • the connecting portion 514 connects the light emitting element 3 at the position L12 and the light emitting element 3 at the position L41.
  • the first connecting wire 51 is composed of one continuous connecting wire (metal thin film), the connecting portions 511 to 514 are connected in series, and all the light emitting elements 3 in the annular light emitting portion 9 and the inner light emitting portion 8 are connected in series. Connected to. In the illustrated example, the connecting portions 511 to 514 are in series in this order, and extend so as to meander (reciprocate) in the directions inclined in the X direction and the Y direction when the position L21 is set as the start position. ..
  • the first connection line 51 is connected to the power supply with the connection portion 511 as one end side, the connection portion 514 as the other end side, and is connected to the power supply via a crossover portion 515 straddling the connection portion 523 described later.
  • the second connecting line 52 that connects the light emitting elements 4 to each other has connecting portions 521 to 523 that connect the light emitting elements 4 that are arranged mainly in the directions inclined in the X direction and the Y direction.
  • the connection portion 521 includes a light emitting element 4 at position L42, a light emitting element 4 at the other end of the element row L3 in the Y direction, a light emitting element 4 of the intermediate portion PM23, and one of the element rows L2 in the X direction.
  • the light emitting element 4 at the side end and the light emitting element 4 at the position L11 are connected.
  • the connection unit 522 connects the light emitting element 4 shared by the element row L4 and the element row L2 and the light emitting element 4 shared by the element row L3 and the element row L1.
  • the connection portion 523 emits light from the light emitting element 4 at the position L22, the light emitting element 4 at the other end in the X direction of the element row L1, the light emitting element 4 from the intermediate PM14, and the light emitting element 4 at the one end in the Y direction of the element row L4.
  • the element 4 and the light emitting element 4 at the position L31 are connected.
  • connection portion 521 and the connection portion 522 are connected by a crossover portion 524 that straddles the connection portion 512, and the connection portion 522 and the connection portion 523 are connected by a crossover portion 525 that straddles the connection portion 513.
  • the connecting portions 521 to 523 are connected in this order, and when the position L11 is set as the starting position, the connecting portions 521 to 523 extend so as to meander (reciprocate) in the directions inclined in the X direction and the Y direction.
  • the second connection line 52 is connected to the power supply with the connection portion 521 on one end side and the crossover portion 526 straddling the connection portion 512, and is connected to the power supply with the connection portion 523 on the other end side.
  • the light emitting intensity of the two color light emitting elements 3 and 4 is controlled for each color, and the light emitting color is variable (color matching is controlled). It may be used to make only the light emitting element 4 emit light.
  • the two-color light emitting elements 3 and 4 are alternately arranged in the annular light emitting unit 9, the shape of the irradiation light is rounded even when only one of the light emitting elements 3 and 4 is made to emit light. It is easy to keep in shape.
  • a configuration in which light emitting elements 3 and 4 are arranged in adjacent portions PN23, PN42, PN14, and PN31 instead of the intermediate portions PM23, PM42, PM14, and PM31 is used as a comparative example, and the first embodiment and the comparative example are compared. ..
  • this comparative example light emitting elements 3 and 4 having a color different from that of the light emitting elements 3 and 4 located closest to the element trains L1 to L4 are arranged in the adjacent portions PN23, PN42, PN14, and PN31 (that is,).
  • the light emitting element 4 is arranged in the adjacent portions PN31 and 42, and the light emitting element 3 is arranged in the adjacent portions PN23 and PN14).
  • the light emitting elements 3 and 4 when focusing on only one of the light emitting elements 3 and 4, it has a rectangular arrangement having four sides in the directions inclined in both the X direction and the Y direction, and the light emitting elements 3 and 4 have a rectangular arrangement. When only one of them is made to emit light, the shape of the irradiation light tends to be rectangular.
  • the annular light emitting portion 9 in which the two color light emitting elements 3 and 4 are alternately arranged along the circumference of the circle C0 is formed, only one of the light emitting elements 3 and 4 is formed. Even when the light is emitted, it is easy to keep the shape of the irradiation light in a round shape. Further, the annular light emitting unit 9 can suppress color unevenness of the emitted color.
  • each of the element rows L1 to L4 of the first row portion 6 and the second row portion 7 the two color light emitting elements 3 and 4 are alternately arranged, so that the light emitting color is emitted inside the annular light emitting portion 9. Color unevenness can be suppressed.
  • the connecting portions 511 to 514 and 521 to 523 connect the light emitting elements 3 and 4 which are arranged in the directions inclined with respect to both the X direction and the Y direction among the first row portion 6 and the second row portion 7. As a result, it is possible to prevent the wiring from becoming redundant and to connect the light emitting elements 3 and 4 to each other in a space-saving manner.
  • FIG. 3 shows the light emitting device main body 10B of the light emitting device of the second embodiment.
  • the arrangement of the light emitting elements 3 and 4 in the annular light emitting unit 9B is different from that of the first embodiment.
  • the two color light emitting elements 3 and 4 are alternately arranged along the circumference of the circle C0, and the distance between the two adjacent light emitting elements 3 and 4 is constant.
  • the light emitting elements 3 and 4 are provided at the positions L11, L12, L21, L22, L31, L32, L41, and L42 extending the element trains L1 to L4, respectively, whereas in the second embodiment, the light emitting elements 3 and 4 are provided.
  • the light emitting elements 3 and 4 are provided at positions closer to the intermediate portions PM23, PM42, PM14, and PM31 than the positions L11, L12, L21, L22, L31, L32, L41, and L42.
  • the light emitting elements 3 and 4 forming the annular light emitting portion 9B all have a pair of sides orthogonal to a line segment extending in the radial direction from the center of the circle C0. Of the pair of sides, the side located on the outside extends along the circumference of the circle C0.
  • the electrical connection unit 5 that connects the light emitting elements 3 and 4 has a third connection line 53 that connects the light emitting elements 3 to each other and a fourth connection line 54 that connects the light emitting elements 4 to each other.
  • the third connection line 53 has connection portions 531 to 533.
  • the connection portion 531 includes a light emitting element 3 near the position L41, a light emitting element 3 at the Y-direction one-sided end of the element train L3, a light-emitting element 3 at the intermediate PM31, and an X-direction one-sided end of the element train L1.
  • the light emitting element 3 and the light emitting element 3 near the position L21 are connected.
  • the connection portion 532 includes a light emitting element 3 near the position L12, a light emitting element 3 shared by the element row L1 and the element row L4, a light emitting element 3 shared by the element row L2 and the element row L3, and a position L32. A light emitting element 3 in the vicinity is connected.
  • the connecting portion 533 connects the light emitting element 3 of the intermediate portion PM42, the light emitting element 3 at the other end of the element row L2 in the X direction, and the light emitting element 3 at the other end of the element row L4 in the Y direction.
  • the third connecting line 53 is composed of one continuous connecting line (metal thin film), the connecting portions 531 to 533 are connected in series, and all the light emitting elements 3 in the annular light emitting unit 9B and the inner light emitting unit 8 are connected in series. Connected to. In the illustrated example, the connecting portions 531 to 533 are in series in this order, and extend so as to meander (reciprocate) in the directions inclined in the X direction and the Y direction.
  • the third connection line 53 is connected to the power supply with the connection portion 531 as one end side and is connected to the power supply with the connection portion 533 as the other end side.
  • the fourth connection line 54 has connection portions 541 to 543.
  • the connecting portion 541 connects the light emitting element 4 near the position L31 and the light emitting element 4 near the position L11.
  • the connection portion 542 includes a light emitting element 4 of the intermediate portion PM14, a light emitting element 4 at one end of the element row L4 in the Y direction, a light emitting element 4 shared by the element row L1 and the element row L3, and an element row L2.
  • the light emitting element 4 at one end on one side in the X direction and the light emitting element 4 at the intermediate portion PM23 are connected.
  • the connection portion 543 includes a light emitting element 4 near the position L22, a light emitting element 4 at the other end of the element row L1 in the X direction, a light emitting element 4 shared by the element row L2 and the element row L4, and an element row L3.
  • the light emitting element 4 at the other end in the Y direction and the light emitting element 4 near the position L42 are connected.
  • the connecting portion 542 and the connecting portion 543 are connected by a crossover portion 544 that straddles the connecting portion 532.
  • the connecting portions 541 to 543 are connected in this order and extend so as to meander (reciprocate) in the directions inclined in the X direction and the Y direction.
  • the fourth connection line 54 is connected to the power supply with the connection portion 541 as one end side and is connected to the power supply with the connection portion 543 as the other end side.
  • the annular light emitting portion 9B in which the two color light emitting elements 3 and 4 are alternately arranged along the circumference of the circle C0 is formed, so that the irradiation light is emitted. It is easy to keep the shape of.
  • the light emitting elements 3 and 4 are arranged at equal intervals in the annular light emitting unit 9B, it is easy to keep the shape of the irradiation light in a round shape. Further, it is possible to suppress color unevenness of the emitted color in the annular light emitting unit 9B.
  • the light emitting elements 3 and 4 forming the annular light emitting portion 9B are orthogonal to the line segment extending in the radial direction from the center of the circle C0 and have a side along the circumference of the circle C0. It is easy to make the outer peripheral edge of 9B a shape along the circumference of the circle C0, and it is easy to keep the shape of the irradiation light in a round shape.
  • the light emitting device 1 of the present invention has been described above with reference to preferred embodiments, the light emitting device of the present invention is not limited to the configuration of the above embodiment.
  • the light emitting elements 3 and 4 forming the annular light emitting portion 9B have sides orthogonal to a line segment extending in the radial direction from the center of the circle C0.
  • the sides of all the light emitting elements 3 and 4 may extend along the X direction or the Y direction.
  • only the orientations of the light emitting elements 3 and 4 provided in the intermediate portions PM23, PM42, PM14, and PM31 are different from those of the first embodiment.
  • one light emitting element 3 or 4 is provided in each of the intermediate portions PM23, PM42, PM14, and PM31, but two or more light emitting elements may be provided in each intermediate portion.
  • two light emitting elements 3 and 4 are provided in each of the intermediate portions PM31 and PM42, and one light emitting element 3 and 4 are provided in each of the intermediate portions PM23 and PM14. ..
  • light emitting elements 3 and 4 are provided at positions shifted to the other side in the Y direction with respect to the positions L11 and L21, and light is emitted at positions shifted to one side in the X direction with respect to the positions L32 and L42.
  • Elements 3 and 4 are provided, and light emitting elements 3 and 4 are provided at positions shifted to one side in the Y direction with respect to positions L12 and L22, respectively, and light emitting elements 3 and 4 are provided on the other side in the X direction with respect to positions L31 and L41. Light emitting elements 3 and 4 are provided at each of the positions shifted to.
  • the modified example 3 shown in FIG. 6 differs from the modified example 2 in that the sides of the light emitting elements 3 and 4 provided in the intermediate portions PM23, PM42, PM14, and PM31 extend along the X direction or the Y direction. There is.
  • the inner light emitting portion 8 has the first row portion 6 and the second row portion 7, but the configuration is not limited to this.
  • the inner light emitting portion has an inner annular portion in which two color light emitting elements 3 and 4 are alternately arranged along the inside of the annular light emitting portion.
  • the inner annular portion 81 is formed by the four light emitting elements 3 and 4.
  • the light emitting element 3 is arranged inside the inner annular portion 81, and the inner light emitting portion 8B is formed by the inner annular portion 81 and the inner light emitting element 3.
  • Five light emitting elements 3 and 4 are arranged in the X direction, the light emitting element 3 is arranged in the center, and all the others are light emitting elements 4.
  • Five light emitting elements 3 and 4 are arranged in the Y direction, light emitting elements 4 are arranged at both ends, and all others are light emitting elements 3.
  • One light emitting element 3 is arranged between the end of the row of the light emitting elements 3 and 4 arranged in the X direction and the end of the row of the light emitting elements 3 and 4 arranged in the Y direction.
  • the position and orientation of the light emitting element 3 of the above are the same as those of the light emitting elements 3 and 4 provided in the intermediate portions PM23, PM42, PM14, and PM31 in the first embodiment.
  • the annular light emitting portion 9C is formed along the circumference of the circle C0.
  • the modified example 5 shown in FIG. 8 is different from the modified example 4 in that the sides of the light emitting elements 3 of the intermediate portions PM23, PM42, PM14, and PM31 are along the X direction or the Y direction.
  • the annular light emitting portion 9D is formed along the circumference of the circle C0.
  • the modified example 6 shown in FIG. 9 is different from the modified example 4 in that the light emitting element 3 is not provided inside the inner annular portion 81.
  • the modified example 7 shown in FIG. 10 is different from the modified example 5 in that the light emitting element 4 is not provided inside the inner annular portion 81.
  • the modified example 9 shown in FIG. 12 is different from the modified example 8 in that the sides of the light emitting elements 3 and 4 of the intermediate portions PM23, PM42, PM14, and PM31 are along the X direction or the Y direction.
  • the modified example 10 shown in FIG. 13 is different from the modified example 8 in that the light emitting element 3 is not provided inside the inner annular portion 81.
  • the modified example 11 shown in FIG. 14 is different from the modified example 9 in that the light emitting element 3 is not provided inside the inner annular portion 81.
  • the light emitting elements 3 and 4 are assumed to be square, but the shape of the light emitting element is not limited to a square shape, and may be another polygonal shape or a circular shape. It may be present, and it may be set appropriately.
  • the light emitting elements 3 and 4 of the annular light emitting unit 9 are arranged along the circumference of the circle C0, but the light emitting elements may be arranged along the ellipse in the annular light emitting unit. .. That is, the light emitting elements may be arranged in a circular or elliptical shape in the annular light emitting portion so that the desired irradiation light shape can be obtained by the light emitting device.
  • the light emitting device 1 uses two color light emitting elements 3 and 4, but the light emitting device may use three or more color light emitting elements.
  • the light emitting elements of three or more colors may be arranged so as to repeat a predetermined order (for example, red, blue, and green are repeated along the clockwise direction).

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Led Device Packages (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

L'invention concerne un dispositif électroluminescent capable de créer une lumière d'irradiation presque circulaire. Ledit dispositif électroluminescent (1) est pourvu d'une partie électroluminescente annulaire (9) dans laquelle des éléments électroluminescents (3, 4) d'une pluralité de couleurs sont disposés le long d'un cercle (C0) ou d'une ellipse sur un substrat (2), et d'une partie électroluminescente interne (8) qui est disposée dans une région à l'intérieur de la partie électroluminescente annulaire (9) et dans laquelle une pluralité d'éléments électroluminescents (3, 4) de mêmes couleurs que les couleurs de la partie électroluminescente annulaire (9) sont disposés. L'intensité d'émission de lumière des éléments électroluminescents (3, 4) de la pluralité de couleurs est commandée sur une base de couleur par couleur. Dans la partie électroluminescente annulaire (9), les éléments électroluminescents (3, 4) de la pluralité de couleurs sont disposés de façon à répéter une séquence prédéterminée.
PCT/JP2021/000160 2020-03-19 2021-01-06 Dispositif électroluminescent WO2021186851A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020048594A JP2021150469A (ja) 2020-03-19 2020-03-19 発光装置
JP2020-048594 2020-03-19

Publications (1)

Publication Number Publication Date
WO2021186851A1 true WO2021186851A1 (fr) 2021-09-23

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JP (1) JP2021150469A (fr)
WO (1) WO2021186851A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012113959A (ja) * 2010-11-24 2012-06-14 Panasonic Corp 発光装置
JP2013211198A (ja) * 2012-03-30 2013-10-10 Mitsubishi Chemicals Corp 照明装置
JP2019016780A (ja) * 2017-07-04 2019-01-31 日亜化学工業株式会社 発光装置
JP2019075297A (ja) * 2017-10-17 2019-05-16 日亜化学工業株式会社 ライトパイプおよび照明装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012113959A (ja) * 2010-11-24 2012-06-14 Panasonic Corp 発光装置
JP2013211198A (ja) * 2012-03-30 2013-10-10 Mitsubishi Chemicals Corp 照明装置
JP2019016780A (ja) * 2017-07-04 2019-01-31 日亜化学工業株式会社 発光装置
JP2019075297A (ja) * 2017-10-17 2019-05-16 日亜化学工業株式会社 ライトパイプおよび照明装置

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