CN202769565U - Light-emitting device and lighting device - Google Patents

Abstract

The utility model provides a light emitting device and an illuminating device. The light emitting device can simplify the connection of light emitting elements, has good color mixing and can realize uniformity improvement. The utility model relates to a light-emitting device, comprising: a substrate (21); and light-emitting elements (22) with the same number of light-emitting colors, which are installed on the substrate (21) and have a plurality of light-emitting colors, and each light-emitting color has multiple colors. They are arranged in rows on the periphery of substantially concentric circles with different radii or polygons with different sizes but with substantially the same center, and these rows are arranged with positions shifted in the circumferential direction. The utility model can simplify the connection of the light-emitting elements, and the color mixing is good and the uniformity can be improved.

Description

Lighting device and lighting device

technical field

Embodiments of the present invention relate to a light-emitting device using a light-emitting element such as a light-emitting diode (hereinafter referred to as an LED (Light Emitting Diode)) as a light source, and a lighting device provided with the light-emitting device.

Background technique

Recently, along with higher output and higher efficiency of LEDs, lighting devices using LEDs as light sources that can be used indoors or outdoors and can be expected to have a longer life have been developed. In this lighting device, a plurality of LEDs are mounted on a substrate to obtain predetermined brightness, and are used as base lighting mounted on a ceiling surface or the like, for example.

On the other hand, with the diversification of lifestyles, as a function required for these lighting devices, it is expected not only to simply illuminate the surroundings, but also to consider the surrounding environment or the impact of light on the living body, etc. The light space of the life scene (scene) satisfies the user's comfort and so on.

Therefore, for example, it is attempted to arrange a plurality of LEDs of luminous colors on the circumference in sequence on the substrate, and to mix these luminous colors to improve the decoration.

prior art literature

non-patent literature

Non-Patent Document 1: Launch of LED Ceiling Lamp "EVERLEDS" Series | Press Release | News | Panasonic Corporate Information | .data/data.dir/jn110126-2/jn110126-2.html)

However, in the above case, there is a possibility that a wiring pattern (pattern) for connecting LEDs of a plurality of luminescent colors to each other on the substrate may be complicated.

Utility model content

The present invention is made in view of the above-mentioned problems, and an object thereof is to provide a light-emitting device that can simplify the connection of light-emitting elements, and can improve color mixing and uniformity, as well as a lighting device including the light-emitting device. .

The light-emitting device according to the embodiment of the present invention includes: a substrate; and the same number of light-emitting elements of each light-emitting color, which are mounted on the substrate and have a plurality of light-emitting colors, and each light-emitting color is arranged in a plurality of rows in approximately different radii. On the periphery of concentric circles or polygons having different sizes but having substantially the same center, these columns are arranged with positions shifted in the circumferential direction.

The light-emitting device includes light-emitting elements that emit white light, on the outside and inside of the rows of light-emitting elements of the plurality of light-emitting colors, and on the circumference of a circle or polygon whose center is the same as that of the circle or polygon. Arranged in rows and installed.

A lighting device according to an embodiment of the present invention includes the above-mentioned light emitting device and a lighting device, and the lighting device performs lighting control on the light emitting elements in the light emitting device.

The effect of utility model

According to the embodiments of the present invention, it is possible to provide a light emitting device and a lighting device including the light emitting device, the light emitting device can simplify the connection of light emitting elements, and can achieve good color mixing and uniformity improvement.

Description of drawings

FIG. 1 is a perspective view showing a lighting device according to an embodiment of the present invention.

Fig. 2 is an exploded perspective view showing the front side of the lighting device of the present invention.

Fig. 3 is an exploded perspective view showing the rear side of the lighting device of the present invention.

Fig. 4 is a plan view showing a shade and a light source cover (cover) removed from the lighting device of the present invention.

Fig. 5 is a perspective view showing the back side of the lighting device of the present invention.

Fig. 6 is a cross-sectional view showing a state in which the lighting device of the present invention is attached to a ceiling surface.

Fig. 7 is a plan view showing one substrate in the light source section.

8 is a plan view showing a part of a wiring pattern layer of the substrate of the present invention.

Fig. 9 is a connection diagram showing a connection state of light emitting elements.

Reference signs:

1: Device body (chassis)

2: Light source department

3: lighting device

4: Central component

5: Mounting part (adapter guide part)

6: Light sensor

7: lampshade

7a: Decorative frame for lampshade

8: Cover member

9: Indirect light source department

10: Auxiliary parts unit

11, 35c, 41, 71: opening

12, 13: protrusion

21, 91: Substrate

21a: Wiring pattern layer

21b: reflective layer

22, 92: Light emitting element (LED)

25: Light source cover

35: Lighting device cover

35a: side wall

35b: Back wall

36: Elastic member

42: Department of Space

43: light receiving window

51: Snap-in port

74: Shade mounting metal parts

75: Shade accepts metal parts

81: Through the Ministry

93: Hood

101: Unit substrate

102: Infrared remote control signal receiving unit

103: Light-emitting elements for permanent lights

104: Channel setting switch

A: Adapter

Ae, Ce: electrode

B: blue

C: Device installation surface (ceiling surface)

Cb: wiring device (main body of ceiling lamp holder)

Cn: Connector

D: daylight color

G: green

i: Insulated area

L: bulb color

R: red

Rc: infrared remote control transmitter

r1, r2, r3: radius

Sa, Sc: area

Detailed ways

Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 9 . 1 to 6 show a lighting device, and FIGS. 7 and 8 show a part of a light source unit. Moreover, FIG. 9 shows the connection state of the light source part. In each figure, the illustration of the wiring connection relationship via wires and the like is omitted. In addition, the same code|symbol is attached|subjected to the same part, and repeated description is abbreviate|omitted.

The lighting device according to the present embodiment is a lighting device for ordinary houses that is used by being attached to a ceiling lamp holder main body that is installed on the device mounting surface and serves as an accessory, and illuminates the room by light radiated from a light source unit. In a line appliance, the light source part has a plurality of light emitting elements mounted on a substrate.

The lighting device includes a device main body 1 , a light source unit 2 , a lighting device 3 , a center member 4 , and a mounting unit 5 . Furthermore, the lighting device includes an optical sensor (sensor) 6 , a globe 7 , a cover member 8 , an indirect light source unit 9 , and an auxiliary component unit (unit) 10 . Moreover, the lighting device includes an adapter (adapter) A (refer to FIG. 6 ) and an infrared remote control (remote control) transmitter Rc electrically and mechanically connected to the ceiling lamp holder main body Cb provided on a device as a On the ceiling surface C of the installation surface. Such an illuminating device has a spherical or circular appearance, the front side is used as a light irradiation surface, and the back side is used as an attachment surface to the ceiling surface C. As shown in FIG. These constituent elements will be described in order below.

As shown in FIGS. 2 to 6 , the device body 1 is a thermally conductive chassis (chassis), which is formed in a circular shape from a flat plate of metal material such as cold-rolled steel plate, and is formed in a substantially central portion with a configuration that will be described later. The circular opening 11 of the mounting part 5. A part of the circular shape of the opening 11 protrudes outward and is formed in a shape substantially equal to the outer shape of the attachment portion 5 .

On the outer peripheral side of the opening 11 is formed a protruding portion 12 having a quadrangular shape with R-shaped corners and protruding toward the back side. Further, on the outer peripheral side of the device main body 1 , there is formed a circular ring-shaped protruding portion 13 protruding toward the back side, in other words, the protruding portion 13 forms a concave portion on the front side.

In the recess formed by the protruding part 13, the globe receiving metal fitting 75 to which the globe 7 is detachably attached is arrange|positioned. These protruding parts 12 and 13 mainly function as mounting parts for members mounted on the chassis, and also have a function of enhancing the strength of the chassis or increasing a heat dissipation area.

In addition, the device main body 1 corresponds to the chassis in this embodiment, but may be a member called a case, a reflector, or a bottom plate. In general, the light source unit 2 refers to a member or part that is directly or indirectly arranged, and is not interpreted in particular.

As shown in FIGS. 2 , 4 and 6 , the light source unit 2 includes a substrate 21 and a plurality of light emitting elements 22 mounted on the substrate 21 to constitute a light emitting device. In addition, in FIG. 2 , illustration of the light emitting element 22 is omitted. The substrate 21 has a substantially circular-arc fan shape with a predetermined width, and multiple, specifically, four substrates 21 of the same shape are spliced and arranged to form a substantially circular shape as a whole. That is, the substantially annular substrate 21 as a whole includes four divided substrates 21 .

By using the thus divided substrate 21 , thermal shrinkage can be absorbed by the divided portion of the substrate 21 to suppress deformation of the substrate 21 . In addition, the material of the substrate member can be efficiently taken out, which is advantageous in terms of cost, and the handling becomes easy due to the miniaturization of the member. Furthermore, the divided substrates 21 can be shared as parts.

In addition, it is preferable to use a substrate 21 divided into a plurality of pieces, but a single substrate integrally formed in a substantially annular shape may also be used.

The substrate 21 is a flat plate made of glass epoxy resin (FR-4) as an insulating material, and a wiring pattern layer is formed with copper foil on the surface side. The light emitting element 22 is electrically connected to the wiring pattern layer. Furthermore, on the wiring pattern layer, that is, on the surface of the substrate 21, a white resist (resist) layer functioning as a reflective layer is formed.

In addition, when the material of the substrate 21 is an insulating material, a ceramics material or a synthetic resin material can be applied. Furthermore, when made of metal, a metal base substrate in which an insulating layer is laminated on one surface of a base plate such as aluminum having good thermal conductivity and excellent heat dissipation is applicable.

The light emitting element 22 is an LED, and is a surface mount type LED package. The LED packages are mounted in multiple rows along the circumferential direction of the plurality of annular substrates 21 , and in the present embodiment are mounted in three rows on the circumference of substantially concentric circles with different radii. That is, it is attached over the row on the inner peripheral side, the row on the outer peripheral side, and the intermediate row between the row on the inner peripheral side and the row on the outer peripheral side.

The LED package generally includes: an LED chip (chip), which is arranged in a cavity (cavity) formed of ceramics or synthetic resin; Photoresin seals the LED chip.

For the LED packages mounted on the rows on the inner peripheral side and the row on the outer peripheral side, LED packages with light bulb color (L) and daylight color (D) are used, that is, so-called white LED packages are used. These LED packages are They are alternately arranged at substantially equal intervals on the circumference of substantially concentric circles. The LED chip is an LED chip that emits blue light. Phosphors are mixed into the light-transmitting resin, and yellow phosphors or red phosphors for supplementing red components are mainly used in order to emit white light of light bulb color (L) and daylight color (D). The phosphor emits yellow light having a complementary color relationship with blue light. In addition, the so-called white includes daylight color (D), day white (N), white (W), bulb color (L) and the like.

As the LED packages mounted on the middle column, LED packages emitting a plurality of luminescent colors, specifically, LED packages emitting red (R), green (G), and blue (B) light are used. Therefore, the LED chips are LED chips that respectively emit red light, green light, and blue light, and these LED chips are sealed with a translucent resin for molding.

The red (R), green (G) and blue (B) LED packages mounted on the middle row are sequentially arranged in red (R), green (G), blue ( In the order of B), the spaces are arranged continuously at substantially equal intervals. For these LED packages that emit red (R), green (G) and blue (B) light, the same number is used for each luminous color, and each divided substrate 21 is equipped with 11 LED packages of each luminous color. . Therefore, 44 LED packages of each light emission color are used as a whole.

In detail, as shown by referring to FIGS. The luminescent colors are arranged in a plurality of columns (three columns) on the circumference of substantially concentric circles with different radii, and the positions of these columns in the circumferential direction are shifted from each other.

FIG. 7 shows one of the divided substrates 21 , and FIG. 8 shows a part of the wiring pattern layer 12 a of the substrate 21 . In addition, in FIG. 8 , in order to show the positional relationship between the wiring pattern layer 12 a and the light emitting element 22 , a part of the light emitting element 22 is shown by a dotted line for description.

As shown in FIG. 7 , for LED packages that emit red (R), green (G) and blue (B) light, each luminous color is on the circumference of approximately concentric circles with different radii, that is, Red (R) light LEDs are packaged at radius r1, green (G) light-emitting LEDs are packaged at radius r2, and blue (B) light-emitting LEDs are packaged at roughly equal concentric circles with radius r3. configured at intervals. In addition, the light-emitting elements 22 in the rows of LED packages emitting red (R) light, the rows of LED packages emitting green (G) light, and the LED package rows emitting blue (B) light are aligned in the circumferential direction. The positions are staggered (indicated by d in the figure) and arranged.

In addition, the LED package has a substantially rectangular parallelepiped shape in appearance, and an anode (anode) side electrode Ae is provided on one short side, and a cathode (cathode) side electrode Ce is provided on the other short side. In addition, in description, the short side of the electrode Ce side of a cathode side is shown with a thick line.

As shown in FIG. 8 , the substrate 21 is formed by laminating a wiring pattern layer 21 a on an insulating surface and further laminating a reflective layer 21 b thereon. Furthermore, on the substrate 21, a plurality of light emitting elements 22, that is, surface mount LED packages are mounted.

The wiring pattern layer 21 a is patterned with copper foil by etching (etching), and is formed so as to cover substantially the entire surface of the substrate 21 . The wiring pattern layer 21a is divided into a plurality of blocks by the linear insulating region i corresponding to the number of mounted light emitting elements 22, and the anode side electrode Ae and the cathode side electrode Ce of the light emitting element 22 straddle The blocks are connected by a relatively narrow linear insulating region i.

The wiring pattern layer 21 a is an electrical conduction path for supplying electric power to the light emitting element 22 , and functions as a heat spreader that diffuses heat generated from the light emitting element 22 . Therefore, by securing the large-area wiring pattern layer 21a, heat dissipation can be improved.

The reflective layer 21b is formed over substantially the entire surface except the portion where the light emitting elements 22 are mounted and connected to the electrodes Ae and Ce and the portion connected to the connector Cn. That is, the wiring pattern layer 21a is exposed on the surface of the portion where each light emitting element 22 is mounted and connected to the electrodes Ae, Ce and the portion connected to the connector, so that the light emitting element 22 and the connector are connected.

Specifically, the reflective layer 21b is formed using a white photo solder resist type (resist ink) material, and is a white resist layer with good light reflectance.

Each light emitting element 22 is formed by connecting the electrode Ae on the anode side and the electrode on the cathode side of the light emitting element 22 across a relatively narrow linear insulating region i between a plurality of blocks divided by the linear insulating region i. Ce is connected by soldering to the wiring pattern layer 21a.

More specifically, the area Sc of the wiring pattern layer 21a side to which the cathode side electrode Ce is connected is formed to be larger than the area Sa of the wiring pattern layer 21a side connected to the anode side electrode Ae of the light emitting element 22. bigger. That is, it is formed so as to satisfy the relationship of Sa<Sc.

When such a light emitting element 22 emits light, heat is mainly generated on the cathode side, and the temperature of the electrode Ce on the cathode side becomes high. Therefore, by enlarging the region Sc on the wiring pattern layer 21a side to which the electrode Ce on the cathode side is connected, the generated heat can be efficiently diffused and dissipated using a large area, thereby suppressing the temperature rise of the light emitting element 22 .

Therefore, in the LED package mounted on the inner peripheral side row with light bulb color (L) and daylight color (D), the orientation of the electrodes is alternately changed to ensure the wiring connected to the electrode Ce on the cathode side. The area Sc on the side of the pattern layer 21a is large.

On the other hand, in the LED packages with light bulb color (L) and daylight color (D) mounted on the row on the outer peripheral side, the electrodes Ce on the cathode side are arranged facing outward. Since the heat dissipation effect on the outside tends to be higher than that on the inside, by orienting the electrode Ce on the cathode side to the outside, improvement in heat dissipation can be expected.

Next, the red (R), green (G) and blue (B) LED packages mounted on the middle row are arranged on the circumference of substantially concentric circles with different radii as described above, and the These rows are arranged with positions shifted in the circumferential direction. Therefore, when LED packages having the same color of light emission are connected in series as in this embodiment, the connection can be simplified, specifically, the wiring pattern layer 21a between the connection electrodes can be simplified.

Assuming that red (R) light, green (G) light, and blue (B) light-emitting LED packages are arranged on the same circumference, wiring must be bent to avoid adjacent LED packages, and the formation of the wiring pattern layer will become complicated.

However, by arranging the LED packages of the respective luminescent colors on the periphery of substantially concentric circles with different radii by shifting their positions in the circumferential direction as in this embodiment, it is possible to basically form an arc shape (approximately LED packages of the same color can be connected in a straight line, so the connection can be simplified, and a predetermined margin can be provided in the area where the space is limited. For example, the wiring pattern layer 21a that functions as a heat sink can be ensured while The area is large, and the connection is realized on one side.

In addition, as a whole, the LED packages of each luminous color are arranged with a predetermined width in the radial direction and are arranged continuously in the circumferential direction, so that color mixing is good and uniformity can be improved. Furthermore, in the radial direction, the white light-emitting LED packages mounted on the inner row and the outer row are disposed close to each other, and thus an effect of improving light mixing with them can be expected.

Furthermore, a space is secured in the radial direction between the LED packages of each luminous color and the LED packages mounted on the inner and outer rows, and the connector Cn can be partially arranged in this region. and other parts to effectively utilize the space.

In addition, the region Sa on the wiring pattern layer 21a side to which the anode-side electrode Ae of the light-emitting element 22 is connected and the region Sc on the wiring pattern layer 21a side to which the cathode-side electrode Ce is connected should be such that the region Sc can be enlarged. If formed, the shape and the like are not particularly limited.

FIG. 9 shows the wiring state of each light emitting element 22 on one substrate 21 . Specifically, the light-emitting elements 22 mounted on the inner row and the outer row include two lines formed by connecting four series circuits. It is formed by connecting six light emitting elements 22 in series. Therefore, a total of 24 light emitting elements 22 are connected on one line. Furthermore, these series circuits are divided into a group of light-emitting elements whose light-emitting colors are bulb color (L) and a group of light-emitting elements of daylight color (D), and are connected. That is, in one series circuit, the light-emitting elements 22 of the light bulb color (L) and the daylight color (D) do not mix.

On the other hand, eleven light-emitting elements 22 each emitting red (R), green (G) and blue (B) light mounted on the middle row are connected in series. Also, in these series circuits, red (R), green (G), and blue (B) light-emitting elements 22 do not mix.

An end portion of such a connection circuit is connected to the connector Cn so as to be connectable to a connector on the adjacent substrate 21 or a connector on the power supply side.

As described above, in the light source unit 2, a plurality of light emitting elements 22 with different light emitting colors are arranged, that is, light bulb color (L) light, daylight color (D) light, red (R) light, green (G) light, and green (G) light are arranged. Light and blue (B) light-emitting elements 22, therefore, by mixing these light-emitting elements, a wide range of light colors can be expressed, and by adjusting the light output of the light-emitting elements 22, the light color can be adjusted.

In addition, LED chips can be directly mounted on the substrate 21 , and cannonball-shaped LEDs can also be mounted, and the mounting method or form is not particularly limited.

The light source unit 2 constructed in this way is representatively shown in FIGS. 4 and 6 , the substrate 21 is located on the front surface side of the device body 1 and around the opening 11, and the mounting surface of the light emitting element 22 faces the front surface side, that is, faces downward. It is configured according to the direction of irradiation. Then, the substrate 21 is attached by fixing means such as screws so that the back surface side of the substrate 21 is in close contact with the inner surface side of the device main body 1 . Therefore, the substrate 21 is thermally bonded to the device body 1, and the heat from the substrate 21 is conducted from the back side to the device body 1 and dissipated.

As shown in FIGS. 2 and 6 , a light source unit cover 25 is disposed on the front side of the light source unit 2 . The light source cover 25 is made of insulating transparent synthetic resin such as polycarbonate or acryl resin, and is integrally formed in a substantially annular shape along the arrangement of the light emitting elements 22. It is arranged to cover the entire surface of the substrate 21 including the light emitting element 22 .

Therefore, the light emitted from the light emitting element 22 passes through the light source cover 25 . Furthermore, since the entire surface of the substrate 21 is covered, the charging portion is covered by the light source portion cover 25 and insulation is ensured.

As shown in FIGS. 3 and 6 , the lighting device 3 includes a circuit board and circuit components such as a control integrated circuit (Integrated Circuit, IC), a transformer (transformer), and a capacitor (condenser) mounted on the circuit board. The circuit board is formed in a plate shape so as to surround the periphery of the central portion, and circuit components are mounted on the surface side.

The side of the adapter A is electrically connected to the circuit board, and is connected to a commercial AC power supply through the adapter A. Therefore, the lighting device 3 receives the AC power supply to generate a DC output, and supplies the DC output to the light emitting element 22 via a wire to control the lighting of the light emitting element 22 .

Such a lighting device 3 is attached to and covered with a lighting device cover 35 as shown with reference to FIG. 5 , and is disposed on the rear side of the device main body 1 . At this time, the circuit board is mounted with circuit components facing the front side (upper and lower sides in the drawing).

The lighting device cover 35 is formed in a substantially quadrangular short cylindrical shape from a metal material such as a cold-rolled steel plate, the side wall 35a is inclined so as to expand toward the front side, and an opening 35c is formed in the center of the back wall 35b. .

As shown in FIGS. 5 and 6 , the lighting device cover 35 is mounted with a flange on the front side placed on the protruding portion 12 of the chassis and screwed.

Furthermore, an elastic member 36 is attached to the back side of the lighting device cover 35 . The elastic member 36 is attached to the vicinity of the plurality of indirect light source portions 9 corresponding to the installation positions thereof. And this elastic member 36 is attached so that the front-end|tip side may face a central part direction.

The elastic member 36 is a member arranged so as to be spaced from the ceiling surface C along with elastic deformation when the lighting device is installed on the ceiling surface C as the device installation surface, and functions to hold the lighting device The function of maintaining the ceiling surface C reliably.

As shown in FIGS. 2, 4 and 6, the central member 4 is made of a synthetic resin material such as polybutylene terephthalate (PBT) resin and formed into a substantially short cylindrical shape, and An opening 41 facing the ceiling socket main body Cb is provided at the center. Furthermore, an annular space portion 42 is formed around the opening 41 , and an optical sensor 6 to be described later is arranged in the space portion 42 . Furthermore, a light receiving window 43 facing the light receiving part of the photosensor 6 is formed on the front wall of the center member 4 .

As shown mainly in FIG. 6 , the central member 4 configured in this way has a flange on the back side screwed to the chassis via the light source cover 25 and attached thereto. In addition, the central component 4 can be directly or indirectly installed on the chassis, and its specific installation structure is not limited.

The attachment part 5 is an adapter guide part (adapter guide), a member through which the adapter A is inserted and engaged, and a member for attaching the lighting fixture to the ceiling surface C. As shown in FIG. As shown in FIGS. 3 and 6 , the adapter guide is formed in a substantially cylindrical shape, and an engaging opening 51 through which the adapter A is inserted and engaged is provided at the center. The adapter guide portion is arranged corresponding to the opening 11 formed in the central portion of the main body 1 .

In addition, the attachment part 5 does not necessarily have to be what is called an adapter guide part etc. FIG. For example, it may be an opening formed in the device main body 1 etc., and mainly refers to a member or a portion that faces the ceiling socket main body Cb as a wiring fixture and engages the adapter A.

The optical sensor 6 is mounted on the substrate 61 as shown in FIG. 6 , and is arranged so that the light receiving portion thereof faces the light receiving window 43 and is mounted in the space portion 42 of the center member 4 . The photosensor 6 is an illuminance sensor, includes a sensor element such as a photodiode, and operates to detect ambient brightness and output a detection signal. Thereby, when the surroundings are bright, the light source unit 2, which is the light emitting element 22, is controlled so as to be dimmed (dimmed) and turned on.

The shade 7 is formed in a substantially circular shape from a light-transmitting, milky-white, diffusible material such as acrylic resin, and has a circular opening 71 formed in the center. Further, a shade decorative frame 7 a formed of a transparent material including acrylic resin or the like is attached to the outer peripheral portion of the globe 7 .

Furthermore, the globe 7 is detachably attached to the outer peripheral portion of the main body 1 so as to cover the front side of the main body 1 including the light source unit 2 . Specifically, by rotating the lampshade 7, the lampshade mounting metal part 74 provided on the lampshade 7 is engaged with the lampshade receiving metal part 75, and the lampshade receiving metal part 75 is installed on the protruding part 13 of the device body 1. in the formed recess.

Moreover, when detaching the lampshade 7, turn the lampshade 7 in the direction opposite to that of installation to release the engagement between the lampshade mounting metal fittings 74 and the lampshade receiving metal fittings 75, so that the lampshade 7 can be detached.

The cover member 8 is formed in a circular shape from a material such as transparent acrylic resin. The cover member 8 is attached to the front wall of the center member 4 corresponding to the opening 71 of the globe 7 , and is arranged to cover and block the opening 41 of the center member 4 . Furthermore, a transmission portion 81 facing the light receiving window 43 of the optical sensor 6 is formed on the cover member 8 .

The indirect light source unit 9 is arranged on the back side of the device main body 1 and mainly has a function of illuminating the ceiling surface. As shown in FIGS. 3 , 5 , and 6 , a plurality of indirect light source units 9 are arranged around the mounting portion 5 and include a substrate 91 and a plurality of light emitting elements 92 mounted on the substrate 91 .

The substrate 91 is formed as a substantially rectangular flat plate, and the light emitting elements 92 are linearly arranged and mounted along the longitudinal direction of the substrate 91 .

The substrate 91 on which the light emitting element 92 is mounted is mounted on four places on the side wall 35 a of the lighting device cover 35 . At this time, the lighting device cover 35 is formed in a substantially quadrangular shape, and the substrate 91 is attached to the linear flat surface on the side wall 35a, so that the attachment can be performed stably.

Moreover, the side wall 35a constituting the mounting portion of the substrate 91 is formed in an inclined shape that expands toward the front surface side, so the substrate 91 faces obliquely upward, that is, toward the ceiling surface, and the light emitted from the light emitting element 92 is effectively directed toward the ceiling surface. to irradiate.

Furthermore, as mainly shown in FIG. 6 , each indirect light source unit 9 is covered with a translucent cover 93 whose cross section is formed in an inclined shape expanding toward the rear side. Therefore, the elastic member 36 attached to the back side of the lighting device cover 35 can be made difficult to see when the side of the lighting device is viewed from below with the lighting device attached to the ceiling surface C.

Furthermore, the cover 93 is formed in an inclined shape and arranged so as not to cover the part of the device main body 1 corresponding to the rear surface side of the substrate 21 from the outside. Therefore, it is possible to suppress the phenomenon of hindering the heat dissipation from the device main body 1 .

The light emitting element 92 is an LED similar to the light source unit 2 , and a surface mount type LED package is used, and an LED package whose light emission color is light bulb color (L). In addition, the light emitting element 92 is a light emitting element having the same specifications as the light emitting element 22 that emits light in the light source unit 2 (L). The light-emitting element 92 is connected to the lighting device 3 and subjected to lighting control.

As shown in FIGS. 2 to 4 and 6 , the auxiliary component unit 10 includes a unit substrate 101 and a plurality of electrical auxiliary components mounted on the substrate 101 . The electrical auxiliary parts in this embodiment are an infrared remote control signal receiving unit 102, a light emitting element 103 for a pilot lamp, a channel setting switch (switch) 104, and the like. The auxiliary component unit 10 is disposed inside the light source unit 2 on the front side of the device main body 1 .

In addition, the unit substrate 101 of the auxiliary component unit 10 is another substrate for the aforementioned substrate 61 on which the photosensor 6 is installed. On the substrate 61 on which the photosensor 6 is installed, the infrared remote control signal receiving part 102, The light emitting element 103 etc. for an always-on lamp. The reason is that the light sensor 6 has the function of detecting the surrounding brightness and automatically controlling the light-emitting state of the light-emitting element 22, so that it is convenient to provide two types of lighting devices with this function and those without this function.

That is, when developing a lighting device that does not have the function of automatically controlling the light-emitting state, it can be easily realized without the photosensor 6 and the center member 4 .

As shown in FIG. 6, the adapter A is a part electrically and mechanically connected to the ceiling lamp holder main body Cb provided on the ceiling surface C through a hook provided on the upper surface side, and has a substantially cylindrical shape. A pair of locking portions A1 are provided on both sides so as to always protrude toward the outer peripheral side by built-in springs. This locking part A1 is sunk by operating the lever (lever) provided in the lower surface side. And, from this adapter A, an unshown power cord (cord) connected to the lighting device 3 is drawn out, and is connected to the lighting device 3 via a connector.

The infrared remote control transmitter Rc, for example, sends a pulse-shaped specific coded infrared remote control control signal with a frequency of 38 kHz, for example, a mode (mode) switching button (button), a full-light lighting button, a dimming lighting button, a permanent light button, and a light-off button are provided. button etc. By operating the remote control transmitter Rc toward the infrared remote control signal receiving unit 102 which is the accessory unit 10 , the lighting states of the light source unit 2 and the indirect light source unit 9 can be controlled.

Next, an attached state of the lighting fixture attached to the ceiling surface C will be described with reference to FIG. 6 . First, the adapter A is electrically and mechanically connected to the ceiling lamp holder main body Cb provided on the ceiling surface C in advance. In the state where the cover member 8 of the lighting fixture is detached, on the one hand, align the engaging opening 51 of the adapter guide portion with the adapter A, and on the other hand, overcome the elastic force of the elastic member 36 and push up the device body 1 from below until the adapter A The locking portion A1 of the adapter is securely engaged with the engaging opening 51 of the adapter guide portion, and the mounting operation is performed.

Next, the cover member 8 is attached so as to cover and block the opening 41 in the central portion of the center member 4 facing the ceiling socket main body Cb.

Furthermore, when detaching the lighting fixture, the cover member 8 is detached, and the operation lever provided in the adapter A is operated through the opening 41 of the center member 4 to release the engagement of the locking portion A1 of the adapter A, thereby detaching it.

When the lighting fixture is mounted on the ceiling surface C, when power is supplied to the lighting device 3 , the light emitting elements 22 are energized via the substrate 21 of the light source unit 2 , and each light emitting element 22 is turned on. The light emitted from the light emitting element 22 toward the front side passes through the light source cover 25 , is diffused by the globe 7 , passes through, and is irradiated outward. Therefore, the lower part can be illuminated within the prescribed light distribution range.

At the same time, when the indirect light source part 9 is energized, each light-emitting element 92 is turned on, and the light emitted obliquely upward from the light-emitting element 92 passes through the light-transmitting cover 93, and is radiated from the periphery of the adapter guide part 5. Mainly irradiates to the ceiling surface. Therefore, the ceiling surface becomes bright, and the sense of brightness of the space can be improved.

Since the back side of the substrate 21 is thermally bonded to the device body 1, the heat generated from the light emitting element 22 is efficiently conducted to the device body 1 and dissipated over a large area.

As described above, according to the present embodiment, the LED packages emitting red (R), green (G) and blue (B) light emitting colors are arranged on the circumference of substantially concentric circles with different radii, and the These rows are arranged with positions shifted in the circumferential direction. Therefore, it is possible to provide a lighting device in which the connection of the light emitting elements 22 can be simplified, and the color mixing can be improved and the uniformity can be improved.

In addition, in the above-described embodiment, a plurality of light emitting elements emitting red (R), green (G) and blue (B) light are arranged in multiple rows on the circumference of substantially concentric circles with different radii. The case of 22 has been described, but polygons of different sizes, such as hexagons, may be arranged in a plurality of rows on the periphery, and the positions of these rows in the circumferential direction may be shifted.

Furthermore, on the outside and inside of the rows of the plurality of light-emitting color light-emitting elements 22, and on the periphery of the polygon whose approximate center is the same as the polygon, light-emitting elements that emit white light may be arranged in rows and installed. Element 22. Also in the case of this aspect, the same effect as above can be exhibited.

This invention is not limited to the structure of the said embodiment, Various deformation|transformation is possible in the range which does not deviate from the summary of the invention. In addition, the above-mentioned embodiment has been presented as an example, and is not intended to limit the scope of the invention.

Claims (3)

1. light-emitting device is characterized in that comprising:

Substrate; And

Each illuminant colour is with the light-emitting component of quantity, be installed on the described substrate, be a plurality of illuminant colours, and its every kind illuminant colour is arranged in the different concentric circles of radius with being multiple row or varies in size but center on identical polygonal week, and staggers and configure in the position of the Zhou Fangxiang of the row that make these in each other.

2. light-emitting device according to claim 1 is characterized in that comprising:

The turn white light-emitting component of coloured light in the outside and the inboard of the row of the light-emitting component of described a plurality of illuminant colours, and is arranged and is installed making the center circle identical with described circle or polygon or be row ground polygonal week.

3. lighting device is characterized in that comprising:

Described claim 1 or 2 described light-emitting devices; And

Ignition device is to the control of lighting a lamp of the light-emitting component in this light-emitting device.

Images