Light-emitting device
A technology of light-emitting device and light-emitting spectrum, applied in the direction of light-emitting material, lighting device, electroluminescent light source, etc., can solve the problem of no replacement, etc.
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no. 1 Embodiment approach
[0043] [light emitting device]
[0044] figure 1 Shown in : a schematic plan view and a side view showing the configuration of a light emitting device according to an embodiment. figure 2 Shown in : an example of lamination of a solid light source and a fluorescent film. figure 1 , 2 The illustrated light emitting device 10 includes a solid light source 2 mounted on a package 1 and a fluorescent film 3 covering the solid light source 2 . The package body 1 is composed of a cup-shaped substrate with a concave portion, a solid light source 2 is provided on the bottom surface of the concave portion, and the opening of the concave portion is covered by a fluorescent film 3 . It should be noted, figure 1 In (A), the fluorescent film 3 is omitted. As a base constituting the package 1 , a surface mount package (SMD package) using a resin board, a ceramic board, or the like, a chip-on-board substrate (COB substrate), or the like can be used. The solid-state light source 2 is bo...
manufacture example 1～14
[0137] [Manufacture Examples 1 to 14] (Manufacture of near-infrared phosphor)
[0138] In the examples, use the composition starting with Li a Sr b La c Si d N e Eu f (wherein, a to f are numbers such that a+b+c+d+e+f=100) represent infrared phosphor materials.
[0139] Near-infrared phosphors P1 to P14 that can be used in Examples were manufactured in the following manner. Table 1 shows the designed compositions of these phosphors.
[0140] Table 1
[0141] Si N Li Sr La Eu Phosphor P1 37.74 55.60 0.00 4.11 1.66 0.89 Phosphor P2 37.32 56.09 0.00 0.77 4.94 0.88 Phosphor P3 34.18 54.42 0.00 7.63 2.85 0.91 Phosphor P4 33.54 55.27 0.00 1.90 8.39 0.89 Phosphor P5 31.07 53.39 0.00 10.72 3.88 0.93 Phosphor P6 30.29 54.57 0.00 2.88 11.36 0.91 Phosphor P7 24.41 51.18 0.00 17.33 6.10 0.98 Phosphor P8 38.09 55.19 2.24 2.46 1.12 0.90 Phosphor P9 37.81 55.52 2.22 0.2...
Embodiment 1
[0163] Phosphor powders and silicone resins shown in Table 4 were mixed at the ratios described in Table 1 using a stirring device to prepare phosphor resin compositions a to e. The resin composition a was formed into a film by sliding a doctor blade with a gap between it and the substrate on a transparent substrate manufactured by SCHOTT, and after thermal curing, the resin composition a was removed from the transparent substrate. After peeling, the first layer having the thickness described in Table 1 was formed. Next, the resin composition b was formed into the second layer by the same method as the first layer. Furthermore, in the same way, resin compositions c, d, and e were used to form the third layer, the fourth layer, and the fifth layer, and silicone resin was thinly applied and stacked between the layers to produce five types of phosphors. 5 layers of fluorescent film respectively contained in different layers.
[0164] On the bottom surface of the concave portion...
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Abstract
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