CAJ | 학술논문

用掺入 Ce∶YAG 荧光粉的树脂封装蓝光 LED 芯片，研制可用于水下集鱼灯的大功率 LED 发光板，并系统地测量其电流、电压特性和发光特性。测量结果表明：输入电流较小时（小于0.5A），电流与电压之间的关系可用指数函数描述，输入电流较大时（大于2.0A），电流与电压的关系可用线性函数描述；LED 发光板在450 nm 处有发光峰值，为蓝光芯片的自身发光，在550 nm 附近有较宽的发光峰，为封装树脂中掺入的 Ce∶YAG 荧光粉的发光；LED 发光板的流明光效最大值接近120 lm/W，在输入电功率接近100 W 时，其流明光效仍接近90 lm/W。
용참입 Ce∶YAG 형광분적수지봉장람광 LED 심편，연제가용우수하집어등적대공솔 LED 발광판，병계통지측량기전류、전압특성화발광특성。측량결과표명：수입전류교소시（소우0.5A），전류여전압지간적관계가용지수함수묘술，수입전류교대시（대우2.0A），전류여전압적관계가용선성함수묘술；LED 발광판재450 nm 처유발광봉치，위람광심편적자신발광，재550 nm 부근유교관적발광봉，위봉장수지중참입적 Ce∶YAG 형광분적발광；LED 발광판적류명광효최대치접근120 lm/W，재수입전공솔접근100 W 시，기류명광효잉접근90 lm/W。
Blue LED chips were encapsulated by plastic which were mixed with Ce∶YAG fluorescent powder, and LED lighting plate were designed for high power LED underwater fish aggregation lamp. The current-voltage characteristics and light-emitting properties of LED lighting plate were measured. When the input current is small (less than 0.5 A), the current-voltage relation could be described by exponential function; when the input current is large (larger than 2.0 A), the current-voltage relation could be described by a linear function. Emission peak at 450 nm is from blue LED chips, and the wide emission peak near 550nm is from the Ce∶YAG phosphors. The maximum lumen efficiency of LED lighting plate is close to 120 lm/W, and the Lumen lighting effect is no less than 90 lm/W even the input power reaches 100 W.