TWM455117U - Light-emitting device - Google Patents

Abstract

A light-emitting device comprises a light-emitting element, a transparent lampshade and a wave length transformation line. The light-emitting element emits a first light with a wave length. The transparent lampshade covers the light-emitting element. The wave length transformation line surrounds an outer surface of the transparent lampshade, and the light-emitting element emits a second light with a second wave length through the wave length transformation line.

Description

Illuminating device

The present invention relates to a light-emitting device, and more particularly to a light-emitting device having a wavelength conversion line.

A conventional light-emitting device includes a light-emitting diode and a fluorescent glue, wherein the fluorescent glue closely covers the light-emitting diode. However, when the light color of the light-emitting device cannot meet the quality requirement, since the fluorescent glue closely covers the light-emitting diode, the fluorescent glue is difficult to be separated from the light-emitting diode, and the entire light-emitting device is scrapped.

The present invention relates to a light-emitting device. In one embodiment, the reworkability of the light-emitting device can be improved.

According to one aspect of the present invention, a light emitting device is proposed. The light emitting device comprises a light emitting package component, a light transmissive lamp cover and a wavelength conversion line. The light emitting package component emits a first light having a first wavelength. The light-transmissive lamp cover covers the light-emitting package component. The wavelength conversion line is wound around the outer surface of the transparent lamp cover, and the first light emitted by the light emitting package component passes through the wavelength conversion line and is converted into a second light having a second wavelength.

In order to make the above content of the creation more obvious and easy to understand, the following specific embodiments, together with the drawings, are described in detail as follows:

Please refer to FIG. 1 , which is a cross-sectional view of a light emitting device according to an embodiment of the present invention. The light emitting device 100 is, for example, a desk lamp, and includes a light emitting package component 110, a light transmissive lamp cover 120, and a wavelength conversion line 130.

The light emitting package component 110 emits a first light ray L1 having a first wavelength. In detail, the light emitting package component 110 includes a diode wafer 111 and a light transmissive glue 112, and the diode wafer 111 is, for example, a blue, green, red or ultraviolet photodiode wafer, and the light transmissive glue 112 covers the dipole. Body wafer 111. The light-transmitting adhesive 112 may not contain fluorescent particles (the present embodiment is not limited thereto). Under this design, the wavelength of the light emitted from the diode wafer 111 is substantially maintained at the original light wavelength after passing through the transparent adhesive 112, and then The wavelength conversion line 130 is then converted into a second light ray L2 having a second wavelength, such as white light.

The light transmissive cover 120 can be made of glass or plastic. The light transmissive cover 120 covers the light emitting package component 110. The first light L1 emitted by the light emitting package component 110 passes through the light transmissive cover 120 and passes through the wavelength conversion line 130 to be converted into the second light L2 to be emitted outside the light emitting device 100.

In this example, the number of wavelength conversion lines 130 is a single strip. The wavelength conversion line 130 is wound around the outer surface 120s of the light transmissive cover 120. The light-transmitting lamp cover 120 has a bottom opening 120b and a top plate 120u. One end 131 of the wavelength conversion line 130 is fixed adjacent to the bottom opening 120b, and the other end 132 of the wavelength conversion line 130 is fixed adjacent to the top plate 120u to convert the wavelength. The range in which the wire 130 is wound covers almost the outer surface 120s between the bottom opening 120b of the light transmissive cover 120 and the top plate 120u.

The wavelength conversion line 130 includes a substrate 133 and a plurality of fluorescent particles 134. The phosphor particles 134 are simultaneously distributed on the outer surface 133s of the substrate 133 and the inside of the substrate 133, that is, some of the fluorescent particles 134 protrude from Substrate The outer surface 133s is 133s, while the other fluorescent particles 134 are completely inside the substrate 133 but do not protrude from the outer surface 133s of the substrate 133. In another example, all of the fluorescent particles 134 are completely located inside the substrate 133 without protruding beyond the outer surface 133s of the substrate 133; in still another example, all of the fluorescent particles 134 protrude from the outer surface 133s of the substrate 133. The material of the substrate 133 is a polymer, a metal, an organic substance, or a combination thereof. The fluorescent particles 134 are yellow-green fluorescent particles, red fluorescent particles, or a combination thereof. The types of such fluorescent particles 134 may be identical or partially identical. By adjusting the composition and/or ratio of the fluorescent particles 134, the color temperature and/or color rendering properties can be changed.

The wavelength conversion line 130 is wound around the light-transmitting cover 120 by a plurality of coils 130'. By increasing or decreasing the number of turns of the coil 130', the color temperature and/or color rendering properties can be adjusted. The pitch h1 of the adjacent two coils 130' may be larger or smaller than the wavelength of the first light ray L1 of the light emitting package component 110. When the pitch h1 of the adjacent two coils 130' is greater than the wavelength of the first light ray L1 of the light-emitting package component 110, the first light ray L1 has a chance to be circulated through the pitch h1, since the fluorescent particles 134 protrude from the substrate 133. The outer surface is 133s. Therefore, the first light L1 can still contact the fluorescent particles 134 to change its wavelength.

The wavelength conversion line 130 is not directly in contact with the light emitting package component 110, so that the fluorescent particles 134 are prevented from being rapidly depleted by heat to increase the lifetime of the wavelength conversion line 130. In addition, the wavelength conversion line 130 is easily replaced, so that the reworkability of the light emitting package component 110 can be improved.

In addition, the wire diameter d1 of the wavelength conversion line 130 is between 0.46 and 0.00314 inches. This wire specification conforms to the specification of AWG 0000~40, but the present embodiment is not limited thereto.

Please refer to FIG. 2, which illustrates a luminescence according to another embodiment of the present creation. A cross-sectional view of the device. The light emitting device 200 is, for example, a desk lamp, and includes a light emitting package component 110, a light transmissive lamp cover 120, and a plurality of wavelength conversion lines 130. The color of at least two of the phosphor particles 134 (not shown in FIG. 2) of the wavelength conversion lines 130 are different to design a color temperature and/or color rendering property.

Please refer to FIG. 3A, which is a cross-sectional view of a light emitting device according to another embodiment of the present invention. The light-emitting device 300 is, for example, a desk lamp, and includes a light-emitting package component 110, a light-transmitting lamp cover 120, and a wire mesh 330. The wire mesh 330 has a shape similar to that of the light-transmitting lamp cover 120 and covers the light-transmitting lamp cover 120. The wire web 330 may be formed of at least one wavelength conversion line 130 using, for example, a weaving method. In another example, at least one wavelength conversion line 130 can be woven into a plurality of patches to adhere to an appropriately sized patch in accordance with the shape of the light transmissive cover 120. In addition, the color of the fluorescent particles of the patches may be different, thereby adjusting the color temperature and color rendering properties.

Referring to Figure 3B, a cross-sectional view along the direction 3B-3B' in Figure 3A is shown. The light-emitting device 300 further includes an adhesive 340 that can bond the wire mesh 330 and the light-transmitting lamp cover 120.

Please refer to FIG. 4, which is a cross-sectional view of a light emitting device according to another embodiment of the present invention. The light emitting device 400 is, for example, a light bulb, which includes a light emitting package component 110, a light transmissive lamp cover 420, and a wavelength conversion line 130. The light-transmitting lamp cover 420 is a bulb lamp cover which can be made of glass or plastic. The manner in which the wavelength conversion line 130 is coupled to the transparent cover 420 is similar to the manner in which the wavelength conversion line 130 is coupled to the transparent cover 120, and details are not described herein. The wavelength conversion line 130 is wound around the outer surface 420s of the transparent lamp cover 420. The first light L1 emitted by the light emitting package component 110 passes through the wavelength conversion line 130 and is converted into a second light L2 having a second wavelength, such as white light, to emit light. Outside the device 400.

Although the illuminating device of the above embodiment is exemplified by a desk lamp and a bulb, the illuminating device may be a street lamp, a lamp tube or other suitable illuminating product, and is not limited by the above embodiments.

In summary, although the present invention has been disclosed above by way of example, it is not intended to limit the present invention. Those who have ordinary knowledge in the technical field of the present invention can make various changes and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this creation is subject to the definition of the scope of the patent application.

100, 200, 300, 400‧‧‧ illuminating devices

110‧‧‧Lighting package components

111‧‧‧ Diode Wafer

112‧‧‧Translucent adhesive

120, 420‧‧ ‧ light shade

120s, 420s‧‧‧ outer surface

120b‧‧‧ bottom opening

120u‧‧‧ top board

130‧‧‧wavelength conversion line

130’‧‧‧ coil

131‧‧‧End

132‧‧‧The other end

133‧‧‧Substrate

133s‧‧‧ outer surface

134‧‧‧Fluorescent particles

330‧‧‧Wire network

340‧‧‧Viscos

D1‧‧‧ wire diameter

H1‧‧‧ spacing

L1‧‧‧First light

L2‧‧‧second light

1 is a cross-sectional view of a light emitting device in accordance with an embodiment of the present invention.

2 is a cross-sectional view of a light emitting device according to another embodiment of the present invention.

3A is a cross-sectional view of a light emitting device according to another embodiment of the present invention.

Fig. 3B is a cross-sectional view taken along line 3B-3B' in Fig. 3A.

4 is a cross-sectional view of a light emitting device in accordance with another embodiment of the present invention.

100‧‧‧Lighting device

110‧‧‧Lighting package components

111‧‧‧ Diode Wafer

112‧‧‧Translucent adhesive

120‧‧‧Lighting lampshade

120s‧‧‧ outer surface

120b‧‧‧ bottom opening

120u‧‧‧ top board

130‧‧‧wavelength conversion line

130’‧‧‧ coil

131‧‧‧End

132‧‧‧The other end

133‧‧‧Substrate

133s‧‧‧ outer surface

134‧‧‧Fluorescent particles

D1‧‧‧ wire diameter

H1‧‧‧ spacing

L1‧‧‧First light

L2‧‧‧second light

Claims (12)

A light emitting device comprising: a light emitting package component; emitting a first light having a first wavelength; a light transmissive cover covering the light emitting package component; and a wavelength conversion line wound around an outer surface of the light transmissive cover The first light emitted by the light emitting package component is converted into a second light having a second wavelength after passing through the wavelength conversion line. The illuminating device of claim 1, wherein the wavelength conversion line comprises a substrate and a plurality of fluorescent particles distributed on the outer surface of the substrate and at least the interior of the substrate One. The light-emitting device according to claim 2, wherein the material of the substrate is a polymer, a metal, an organic substance or a combination thereof. The light-emitting device of claim 2, wherein the fluorescent particles are yellow-green fluorescent particles, red fluorescent particles, or a combination thereof. The illuminating device of claim 2, comprising: a plurality of the wavelength conversion lines, the fluorescent particles of one of the wavelength conversion lines and the other of the plurality of wavelength conversion lines The color of the light particles is different. The illuminating device of claim 1, wherein the wavelength conversion line has a wire diameter of between 0.46 and 0.00314 inches. The light-emitting device of claim 1, wherein the light-transmitting lamp cover has a bottom opening and a top plate, one end of the wavelength conversion line is fixed adjacent to the bottom opening, and the wavelength conversion line is another One end is fixed adjacent to the top plate. The light-emitting device of claim 1, wherein the light-transmitting lamp cover is a light bulb lamp cover. The light-emitting device of claim 1, wherein the wavelength conversion line forms a wire mesh having a shape similar to that of the light-transmitting lamp cover, the wire mesh covering the light-transmitting lamp cover. The illuminating device of claim 9, further comprising: a glue for bonding the wire mesh and the light-transmitting lamp cover. The illuminating device of claim 1, wherein the wavelength conversion line is wound on the transparent lamp cover with a plurality of coils, and a spacing between two adjacent coils is greater than a wavelength of the first light of the light emitting package component. The illuminating device of claim 1, wherein the illuminating package component comprises a blue, green, red or ultraviolet photodiode wafer.