Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – Plural light emitting devices
Reexamination Certificate
2009-11-09
2011-10-18
Pizarro, Marcos D. (Department: 2814)
Active solid-state devices (e.g., transistors, solid-state diode
Incoherent light emitter structure
Plural light emitting devices
C257SE33058, C257S091000, C257S098000
Reexamination Certificate
active
08039851
ABSTRACT:
In the field of opto-electronic technology, a three-dimensional (3D) light-emitting diode (LED) light-emitting plate is described. The 3D LED light-emitting plate includes an aluminum substrate. The aluminum substrate is vertically disposed. Notches are formed on an upper side of the aluminum substrate in a thickness direction. LED chips are mounted in the notches. A flexible circuit layer is disposed on a surface of the aluminum substrate. Each LED chip is connected to a circuit of the flexible circuit layer by a gold wire. A fluorescent colloid light-emitting shell is disposed outside each LED chip correspondingly. A cavity is formed between the LED chip and the fluorescent colloid light-emitting shell. A lower portion of the fluorescent colloid light-emitting shell is fixed on the aluminum substrate. The 3D LED light-emitting plate effectively improves the luminous brightness and efficiency of an LED and enlarges an effective light-emitting angle, and alleviates the problem of non-uniform light pattern and light color, such that an LED white light lamp can achieve the luminous effect of a tungsten lamp. The fluorescent colloid light-emitting shell wraps the LED chip, which not only protects the LED chip from dust and produces white light, but is also suitable for use in a severe environment. Moreover, the production cost is reduced due to the simple structure.
REFERENCES:
patent: 2010/0252843 (2010-10-01), Ohashi et al.
Chang Chia-Cheng
Montalvo Eva Yan
Muncy Geissler Olds & Lowe, PLLC
Pizarro Marcos D.
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