TWI481795B - A light emitting diode lamp - Google Patents

Description

Light-emitting diode lamp

The invention relates to a light-emitting diode lamp, which is used for illumination, in particular to a light-emitting diode lamp in which a plurality of blue light-emitting diodes are fixed on a transparent plate to form a two-sided light-emitting white light package.

Referring to FIG. 1 , a light-emitting diode lamp (100) made up of a plurality of blue light-emitting diodes in a white light package, comprising a plurality of blue light-emitting diodes 101, is fixed in a transparent manner. The front side 103 of the board 102; the jumper 104 connects the blue light emitting diodes 101 into a series circuit; the jumper 104 connects the series circuit to the two power end plates 105; the yellow fluorescent powder 106 covers the The plurality of blue light emitting diodes 101 are completed, that is, the white light package capable of emitting light on both sides is completed, and becomes a light emitting diode lamp 100. When the two power supply end plates 105 of the light emitting diode lamp 100 are connected to match the light At the time of power supply (as shown in the figure, 8 chips are connected in series, about DC 25V), the LED lamp 100 can be lit and emit white light.

The above-mentioned conventional method is also applied to the bottom of the body of the plurality of blue light-emitting diodes 101 (not shown), covering the yellow fluorescent powder, or the back surface 107 of the transparent plate 102, corresponding to the plural a fixed position of the blue light emitting diode 101, covering the yellow fluorescent powder 108 to adjust two The difference in color temperature of the surface luminescence.

However, conventional light-emitting diode lamps have only two sides. For the light emission, please refer to FIG. 2: a schematic diagram of a light-emitting diode lamp made of a white light-emitting diode of a plurality of blue light-emitting diodes, which is generally known as a two-sided light-emitting diode lamp. Generally, a conventional light-emitting diode lamp 100 is known. The blue light-emitting diode 101 is horizontally fixed on the front surface 103 of the transparent plate 102. Therefore, after the light is turned on, the light emitted by the wafers may be diffused, but still concentrated on the front surface 103 of the transparent plate 102. And the vertical direction of the back surface 107 and its vicinity are emitted, as shown in the arrow direction, and in the left and right directions of the transparent plate 102, as shown in the A direction and the B direction, there will be only a little The light is emitted, and a dark band having a significant difference between light and dark is formed, which is a characteristic of a general light-emitting diode. Such a light-emitting diode lamp has no 360-degree light emission after being lit, and the present invention improves the problem. , can achieve 360 degrees of light effect.

The invention relates to a light-emitting diode lamp, which is characterized in that the two sides are illuminated The plurality of blue light emitting diodes are packaged in a white light, wherein the plurality of blue light emitting diodes are arranged in a V shape to form a V-shaped light emitting surface on both sides, and then two tapered light reflectors are mounted.

Please refer to Figure 3: Complex of V-shaped luminous surfaces on both sides a plurality of blue light emitting diode white light packages (300), the package 300 including a plurality of blue light emitting diodes 301 arranged in a V shape (as shown), fixed to the front surface 303 of a transparent plate 302 Jumper 304 will each blue light The light emitting diodes 301 are connected to form a series circuit; the jumper 304 connects the series circuit to the two power supply end plates 305; the yellow fluorescent powder 306 is overlaid on the plurality of blue light emitting diodes 301, and It is possible to obtain a V-shaped light emitting surface 307 on both sides.

Then, as shown in FIG. 4, a plurality of blue light emitting diodes having a V-shaped light emitting surface are packaged in white light and are provided with a tapered light reflector (400), and the two tapered light reflectors 401 are respectively There are two light reflecting surfaces 402 facing away from each other and forming a V-shape, and an outer edge 402a of the light reflecting surface 402.

The two tapered light reflectors 401 are respectively disposed on the front surface 303 and the back surface 308 of the transparent plate 302 of the plurality of blue light emitting diodes 300 of the plurality of blue light emitting diodes having the V-shaped light emitting surfaces. In the middle of the V-shaped light-emitting surface 307, the taper angle 401a of each tapered light reflector 401 is directed to the V-shaped tip end of each V-shaped light-emitting surface 307, and each of the two light-reflecting surfaces 402 facing away from each other and forming a V-shape is opposite to each other. The surface of each of the V-shaped light-emitting surfaces 307 is as shown in FIG. 4, and the outer edge 402a of each of the light-reflecting surfaces 402 is not shielded from the front and back surfaces of the plurality of blue light-emitting diodes arranged in a V-shape. The vertical projection surface range 501 is as shown in Fig. 5: a schematic cross-sectional view of the vertical projection surface of the front and back surfaces of the plurality of blue light-emitting diodes arranged in a V-shape without shielding the outer edge of the light-reflecting surface.

In this way, the light emitted by the V-shaped light-emitting surface 307 on both sides can be emitted from the portions of the two light-reflecting surfaces 402 of the two-cone reflector 401, and the light is reflected to the transparent plate 302. The left side direction and the right side direction are diffused and emitted, and the light is emitted outside the light reflecting surface 402, and the light is still reflected by the front surface 303 and the back surface 308 of the transparent plate 302. The vertical direction of the surface and the angles in the vicinity thereof are emitted, and after a short distance, they can be cross-fired and connected to each other, and can still replenish the gap of the reflected light, thereby solving the problem of the aforementioned dark band and achieving The effect of the 360-degree light-emitting of the present invention is as shown in Fig. 6: the present invention can achieve a schematic diagram of a 360-degree light-emitting profile.

In the present invention, a plurality of blue light emitting diodes 301 are arranged in a V-shaped light emitting surface 307, so that two tapered light reflectors 401 can be disposed in the middle of the V-shaped light emitting surface 307, so that the shielding can be achieved without being shielded. The vertical projection surface range 501 of the front and back surfaces of the plurality of blue light-emitting diodes 301 of the V-shape, and the V-shaped light-emitting surface 307, also makes the light-reflecting surface 402 corresponding to the illumination of the left and right sides, thereby simplifying In other words, the series circuit of the plurality of blue light emitting diodes 301 can also be folded back by the V-shaped arrangement, so that the two power supply end plates 305 can be on the same side of the transparent plate 302, thereby reducing the circuit and mechanism. Construction.

Referring to FIG. 7, a light-emitting diode lamp 700 of the present invention is completed, and the two tapered light reflectors 401 are fixed on a base 701, and the two sides are a plurality of V-shaped light-emitting surfaces. The white light package 300 of the blue light emitting diode is sandwiched between the two tapered light reflectors 401, and the relevant positions are as described above, and the inside of the base 701 is hollow, as shown in FIG. 8 : the light emitting diode lamp of the present invention The cross-sectional view of the figure is completed so that the two power supply end plates 305 can be exposed from the base 701 to facilitate being connected to the power source to complete the light-emitting diode lamp of the present invention.

When in use, the two power supply end plates 305 of the light-emitting diode lamp of the present invention are connected to the power source matching the lamp (as shown in the figure, about 50V of DC power), that is, it can be lit, and the problem of solving the aforementioned dark band is achieved. , can be 360 A light-emitting diode lamp that emits light.

100‧‧‧Light-emitting diode lamps and light-emitting diode lamps made of white light-emitting packages of two blue-emitting diodes

101‧‧‧Blue light emitting diode

102‧‧‧Transparent board

103‧‧‧ positive

104‧‧‧jumper

105‧‧‧Power end plate

106‧‧‧Yellow Fluorescent Powder

107‧‧‧Back

108‧‧‧Yellow Fluorescent Powder

300‧‧‧White light-emitting package and package of a plurality of blue light-emitting diodes with V-shaped light-emitting surfaces

301‧‧‧Blue light emitting diode

302‧‧‧Transparent board

303‧‧‧ positive

304‧‧‧jumper

305‧‧‧Power end plate

306‧‧‧Yellow Fluorescent Powder

307‧‧‧V-shaped luminous surface

308‧‧‧ back

400‧‧‧White light-emitting diodes with a plurality of blue-emitting diodes on both sides of a V-shaped light-emitting surface and equipped with a tapered light reflector

401‧‧‧Conical Reflector

401a‧‧‧ cone angle

401b‧‧‧ does not have a tapered tip

402‧‧‧Light reflecting surface

402a‧‧‧ outer edge

501‧‧‧Vertical projection surface range

700‧‧‧A light-emitting diode lamp of the invention

701‧‧‧Base

900‧‧‧Application example of a light-emitting diode lamp of the present invention

901‧‧‧Transparent protective case

902‧‧‧ bulb type connector

1000‧‧‧Conical light reflectors with a curved outer edge and a plurality of blue light emitting diodes with a curved V-shaped luminous surface

1001‧‧‧Shaped light reflector with curved outer edge

1001a‧‧‧ cone angle

1001b‧‧‧ does not have a taper tip

1002‧‧‧ Curved outer edge light reflecting surface

1002a‧‧‧ curved outer edge

1006‧‧‧Yellow Fluorescent Powder

1007‧‧‧V-shaped luminous surface with curved contour

1101‧‧‧Light reflecting surface is concave curved surface

1102‧‧‧ Curved outer edge light reflecting surface is concave curved surface

Fig. 1 shows a light-emitting diode lamp made of a white light package of a plurality of blue light-emitting diodes which are illuminated on both sides.

FIG. 2 is a schematic cross-sectional view of a light-emitting diode lamp made of a plurality of white light-emitting diodes of a plurality of blue light-emitting diodes.

Fig. 3 is a white light package of a plurality of blue light emitting diodes having a V-shaped light emitting surface on both sides.

Fig. 4 is a white light package of a plurality of blue light emitting diodes having a V-shaped light emitting surface on both sides and is provided with a tapered light reflector.

Fig. 5 is a schematic cross-sectional view showing the range of the vertical projection surface of the front and back surfaces of the plurality of blue light-emitting diodes arranged in a V-shape without the outer edge of the light-reflecting surface being shielded.

In Fig. 6, the present invention can achieve a schematic diagram of a 360 degree light exit profile.

Fig. 7 is a view showing the completion of a light-emitting diode lamp of the present invention.

Fig. 8 is a cross-sectional view showing the completed diagram of a light-emitting diode lamp of the present invention.

Fig. 9 is a view showing an application example of a light-emitting diode lamp of the present invention.

Fig. 10 is a white light encapsulation of a plurality of blue light emitting diodes having a V-shaped light emitting surface of a curved outline on both sides and a tapered light reflector having a curved outer edge.

Figure 11 is a light reflection surface view of a concave curved surface.

In Fig. 12, the tapered light reflector does not have a cone angle tip map.

FIG. 7 is a schematic diagram of a light-emitting diode lamp according to the present invention. The light-emitting diode lamp 700 of the present invention comprises a white light package 300 having a plurality of blue light-emitting diodes having a V-shaped light-emitting surface on both sides; a tapered light reflector 401; and a base 701.

A white light package 300 (see FIG. 3) of a plurality of blue light emitting diodes having a V-shaped light emitting surface on both sides is arranged in a V shape (shape as shown) by a plurality of blue light emitting diodes 301, fixed On the front side 303 of a transparent plate 302, the transparent plate 302 can be made of glass, heat-resistant plastic, epoxy resin, etc.; the jumper 304 connects the blue light-emitting diodes 301 to form a series circuit; the jumper 304 The series circuit is connected to the two power end plates 305; the yellow fluorescent powder 306 is overlaid on the plurality of blue light emitting diodes 301, and the yellow fluorescent powder 306 can be mixed with the yellow fluorescent powder by using transparent silicone or epoxy resin. Made of yellow fluorescent powder such as yellow yttrium aluminum garnet (YAG) or yellow yttrium aluminum garnet (TAG), the blue light of the blue light emitting diode is mixed with the yellow light excited by the fluorescent powder. When it is white light, a V-shaped light-emitting surface 307 having a V-shape on both sides can be obtained, and it is white light.

Continuing to refer to FIG. 7, two tapered light reflectors 401 can be fixed on a base 701, and the surface of the light reflecting surface 402 is white, or nearly white, or a metal layer, and the opposite ends are fixed. In the pedestal 701, a plurality of blue light-emitting diodes having the V-shaped light-emitting surfaces on both sides are enabled The white light package 300 is sandwiched and positioned in the middle of the V-shaped light emitting surface 307, and the taper angle 401a of each tapered light reflector 401 is directed to the V-shaped tip of each V-shaped light emitting surface 307, and the two are opposite each other and mutually The V-shaped light reflecting surface 402 is formed on the surface of each of the V-shaped light emitting surfaces 307 as shown in the drawing, and the outer edge 402a of each of the light reflecting surfaces 402 is not shielded from the plurality of blue light emitting lights arranged in a V shape. The vertical projection surface range 501 of the front and back surfaces of the polar body 301, as shown in FIG. 5: the outer edge of the light reflection surface is not shielded to the vertical projection surface range of the front and back surfaces of the plurality of blue light emitting diodes arranged in a V shape Schematic diagram of the section.

Please refer to FIG. 8 : a schematic cross-sectional view of a completed LED lamp of the present invention. The inside of the pedestal 701 is hollow. In the pedestal 701, a plurality of blue light-emitting diodes having V-shaped light-emitting surfaces on both sides are used. The two power supply end plates 305 of the white light package 300 are exposed from the base 701 to facilitate being connected to the power source to complete the light-emitting diode lamp of the present invention.

When in use, the two power supply end plates 305 of the light-emitting diode lamp of the present invention are connected to the power source matching the lamp (as shown in the figure, about 50V of DC power), that is, it can be lit, and the problem of solving the aforementioned dark band is achieved. , a 360-degree light-emitting diode lamp.

The light-emitting diode lamp of the present invention can be further equipped with a power supply circuit (which can be hollow inside the base 701, not shown) to match different power supply, such as alternating current; see also FIG. 9: the present invention An application example (900) of a light-emitting diode lamp, the invention may also be further included: a power circuit (not shown), a transparent protective case 901, and a bulb-type connector 902, which can be inserted into a general lamp socket. .

Please refer to Fig. 10: a plurality of blue light-emitting diodes with a V-shaped light-emitting surface on both sides of a curved outline, and a tapered light reflector (1000) with a curved outer edge, in the fourth The V-shaped light-emitting surface 307 of the figure may also be formed into a V-shaped light-emitting surface 1007 having an arc-shaped outline. Then, the tapered light reflector 401 and the outer edge 402a of the two light-reflecting surfaces 402 are also required to be formed into an arc. The outer edge of the tapered light reflector 1001, and the curved outer edge light reflecting surface 1002, and the curved outer edge light reflecting surface 1002 has a curved outer edge 1002a, because the V-shaped emitting surface and the tapered light reflector The outer edge of the light reflecting surface, the linear fit between the two, or the arc-shaped fit, the technical means is the same, the same result can be achieved with 360 degrees of light.

Please refer to FIG. 11 : a light reflecting surface of the concave curved surface, the light reflecting surface 402 or the curved outer edge light reflecting surface of the tapered light reflector 401 or the curved outer edge of the tapered light reflector 1001. The surface of 1002 may be a plane (as shown in Figures 7 and 10), or a concave curved surface. As shown in Fig. 11A, the two light reflecting surfaces of the tapered light reflector are concave curved surfaces 1101. Or as shown in FIG. 11B, the curved outer edge light reflecting surface of the curved outer edge of the curved outer reflector is a concave curved surface 1102, and the flat or concave curved surface can be adjusted or the best light can be obtained. Reflective diffusion range.

Referring again to Figure 12, the tapered light reflector does not have a cone angle tip, the cone angle 401a of the tapered light reflector 401 or 1001 (see Figure 7), or 1001a (see paragraph 10). The tip of the figure can be removed and removed to match the needs of the assembly mechanism to avoid the yellow fluorescent powder 306 (see Figure 7) with a V-shaped light-emitting surface 307 or 1007, or 1006 (see Figure 10) in space Overlap and increase manufacturing engineering, as shown in Figure 12, A, B, C, D As shown, the tapered light reflector or the curved outer edge of the tapered light reflector does not have a tapered tip end 401b or 1001b, which still achieves the effect of solving the aforementioned dark band, 360 degree light output.

The bottom of the plurality of blue light emitting diodes 301 (not shown) may be transparent, semi-reflective, or totally reflective, or may be covered with a yellow fluorescent powder (not shown); or Further, on the back surface 308 of the transparent plate 302 (see FIG. 3 and FIG. 4), the yellow fluorescent powder (as shown in FIG. 1) is covered at a fixed position corresponding to the plurality of blue light emitting diodes. For the color temperature adjustment of two sides of white light.

300‧‧‧White light-emitting package and package of a plurality of blue light-emitting diodes with V-shaped light-emitting surfaces

301‧‧‧Blue light emitting diode

302‧‧‧Transparent board

306‧‧‧Yellow Fluorescent Powder

307‧‧‧V-shaped luminous surface

401‧‧‧Conical Reflector

401a‧‧‧ cone angle

402‧‧‧Light reflecting surface

402a‧‧‧ outer edge

700‧‧‧A light-emitting diode lamp of the invention

701‧‧‧Base

Claims (10)

A light-emitting diode lamp comprises: a white light package of a plurality of blue light-emitting diodes with a V-shaped light-emitting surface on both sides, arranged in a V shape by a plurality of blue light-emitting diodes, fixed on a transparent plate The two tapered light reflectors each have two light reflecting surfaces that are opposite to each other and form a V-shape with each other; the two tapered light reflectors are respectively disposed on the plurality of V-shaped light emitting surfaces on both sides a front side and a back side of the transparent plate of the white light-emitting diode of the blue light-emitting diode, and located in the middle of the V-shaped light-emitting surface, the taper angle of each of the tapered light reflectors to the V-shaped tip of each of the V-shaped light-emitting surfaces, each Two light reflections facing away from each other and forming V-shapes face each other on the surface of each of the V-shaped light-emitting surfaces, and the outer edges of the respective light-reflecting surfaces are not shielded to the plurality of blue light-emitting diodes arranged in a V-shape The vertical projection surface range of the front and back. The light-emitting diode lamp of claim 1, wherein the light-reflecting surface of the tapered light reflector is a flat surface or a concave curved surface. A light-emitting diode lamp according to claim 1, wherein the tapered light reflector does not have a taper tip. A light-emitting diode lamp according to claim 1, which is provided with a power supply circuit. A light-emitting diode lamp according to claim 1, wherein It is equipped with a power circuit, a transparent protective case, and a bulb-type connector. A light-emitting diode lamp comprises: a white light package of a plurality of blue light-emitting diodes with a V-shaped light-emitting surface on both sides, which is arranged in a V-shape with a curved outline by a plurality of blue light-emitting diodes, fixed a curved transparent reflector having two curved outer edges, each having two curved outer peripheral light reflecting surfaces facing away from each other and forming a V-shape; the two curved outer edge cones The light reflectors are respectively disposed on the front and back sides of the transparent plate of the plurality of blue light emitting diodes of the plurality of blue light emitting diodes having the V-shaped light emitting surfaces on both sides, and are located in the middle of the V-shaped light emitting surface, and each of the curved shapes The tapered angle of the tapered reflector of the outer edge is directed to the V-shaped tip of each of the V-shaped light-emitting surfaces, and the two curved outer edges of the two oppositely facing and mutually V-shaped surfaces are reflected to face the respective V-shaped light-emitting surfaces. And the curved outer edge of each of the curved outer edge light reflecting surfaces does not obscure the vertical projection surface range of the front and back sides of the plurality of blue light emitting diodes arranged in a V shape. A light-emitting diode lamp according to claim 6, wherein the curved outer edge light reflecting surface of the curved outer edge of the curved outer edge is a flat or concave curved surface. A light-emitting diode lamp according to claim 6, wherein the curved outer edge of the curved light reflector does not have a tapered tip. A light-emitting diode lamp according to claim 6, which is provided with a power supply circuit. A light-emitting diode lamp according to claim 6, which is provided with a power supply circuit, a transparent protective casing, and a bulb-type connector.