Moulding fluorescent glass lens and method of producing the same
A technology of fluorescent glass and manufacturing method, which is applied in glass manufacturing equipment, glass pressing, manufacturing tools, etc. It can solve problems such as inability to reduce costs, insufficient temperature resistance, and aging of materials, and achieve the effect of avoiding sticking
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Embodiment 1
[0032] Such as Figure 4A , 4A’ As shown, the molded fluorescent glass lens 1 of this embodiment is a fluorescent glass lens applied to white LEDs. When a GaN (gallium nitride) light emitting diode (light emitting diode, referred to as LED) is excited to emit blue light, it passes through fluorescent Glass lenses can form wavelength conversion to form white light. The glass lens 2 of present embodiment molding fluorescent glass lens 1 is made of B 2 o 3 (Boron trioxide), SiO 2 (Silicon dioxide) is the main component, while the fluorescent material 3 is made of yttrium-aluminum-garnet phosphor powder containing cerium (Ce, Cerium) and terbium (Tb, terbium) elements (referred to as YAG phosphor, YAG phosphor), is molded at a temperature exceeding the glass transition point by glass molding manufacturing method. Since the glass material of the glass lens 2 has exceeded the glass transition temperature and softened, the molded mold Under pressure, the fluorescent material 3 o...
Embodiment 2
[0036] As shown in Figures 4B and 4B', the fluorescent material 3 can be a fluorescent material mixed with red fluorescent material 31 (represented by ○), yellow fluorescent material 32 (represented by X) and blue fluorescent material 33 (represented by △). The material, after the glass molding (glass molding) process, is made into a molded fluorescent glass lens 1 with red, yellow and blue fluorescent materials 3 on the surface; the molded fluorescent glass lens 1 of this embodiment can be used on white LEDs, Or use it on UV-LED (ultraviolet light-emitting diode), so that when the UV-LED is excited to emit ultraviolet (UV), it irradiates the molded fluorescent glass lens 1 with red, yellow and blue fluorescent materials on the surface to generate white light . The red, yellow and blue (inorganic) fluorescent materials 3 used in this embodiment, wherein the yellow fluorescent material 32 can be yellow YAG phosphor (YAG phosphor), TAG phosphor (TAG phosphor) or nitride phosphor...
Embodiment 3
[0044] refer to Figure 7 , the manufacturing method of molding fluorescent glass lens 1 comprises the following steps: Step 1, prepare a glass preform 4 earlier; Step 2, use electrostatic spraying device 19 to spray fluorescent material 3 on the glass preform 4; Step 3, spray with The glass preform 4 of the fluorescent material 3 is placed on the mold cavity of the second mold core 12 using the clamp 20; step 4, the first mold core 11 and the second mold core 12 are heated to the glass transition point temperature of the glass preform 4 The glass transition point temperature Tg+20°C softens the glass preform 4, and then pressurizes the first mold core 11 and the second mold core 12 with the pressure of P1=10KN. At this time, the first mold core 11 is pressed by the first mold core The seat 14 moves downward in the mold core sleeve 13 under pressure, and the second mold core 12 moves upward in the mold core sleeve 13 under the pressure of the second mold base 15, so that the f...
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Abstract
Description
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Application Information
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