LED-chip shining-light-bar base plate material and LED bulb lamp

Abstract

The invention relates to an LED-chip shining-light-bar base plate material and an LED bulb lamp. The LED-chip shining-light-bar base plate material and the LED bulb lamp are characterized in that the LED bulb lamp is composed of shining strips (1), a driving power source (2), a glass bulb shell (3), a glass support core column (4) and an electric connector (5); the glass bulb shell (3) and the glass support core column (4) are subjected to vacuum sealing to a cavity to be filled with high thermal conduction gas, the glass support core column (4) and the shining strips (1) fixed on the glass support core column (4) are contained in the sealed cavity; the shining strips (1) are sequentially electrically connected with the driving power source (2) and the electric connector (5); the LED-chip shining strips (1) are composed of YAG, wherein Ce raw material powder and nitride red fluorescence powder are fired to achieve the effect that one face of the base plate material (6) comprises LED blue light chips (9), and the surfaces of the blue light chips (9) are coated with a fluorescent powder layer (7). According to the LED-chip shining-light-bar base plate material and the LED bulb lamp, low-cost preparing of the high-quality transparent fluorescence polycrystal base plate material is achieved with the novel environment-friendly aqueous tape-casting technology. The fluorescence polycrystal base plate material which is high in lighting efficiency, color rendering index and optical transmittance and the bulb lamp which is good in color-temperature consistency heat dissipation, high in reliability and long in service life are obtained.

Description

technical field [0001] The invention relates to a LED chip light-emitting light strip substrate material and its preparation method and an LED bulb lamp, especially a technical scheme for replacing the currently used sapphire and alumina ceramics with YAG fluorescent multi-phase polycrystals as the light-emitting light strip substrate. And the preparation method of the polycrystalline lamp strip substrate is described in detail, which belongs to the field of inorganic material preparation and lighting application. Background technique [0002] As a solid-state lighting technology, white LEDs have gradually been widely used in daily lighting, landscape lighting, car headlights, tunnel lighting and other fields, and have demonstrated their strong advantages in energy saving, environmental protection, and long life. Recently, under the impetus of the national policy of "banning incandescent lamps" and energy saving and emission reduction, LED filament lamps, as a three-dimensio...

AI Technical Summary

Problems solved by technology

However, in this technical scheme, the simple YAG:Ce material system is used as the material emitting yellow-green light (MgAl 2 o 4 Or undoped YAG is a transparent ceramic matrix material and does not emit light), although it can be replaced by Tb, co-doped with Cr and Pr to increase the red light component in the spectrum, but its increasing effect is limited, and its color rendering performance and color temperature control The ability is poor, and it still cannot meet the performance requirements in the specific use process

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