LIGHT-EMITTING DEVICE

• Main Authors: URANO YOJI, KAMATA SAKUO, NISHIOKA YASUSHI
• Format: Patent
• Language: English
• Published: 05.04.2007
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

PROBLEM TO BE SOLVED: To provide a light-emitting device that is reliable and has a wide angle of divergence of light to be radiated. SOLUTION: The light-emitting device includes a frame 40 for surrounding an LED chip 10 at the packaging surface side of the LED chip 10 in a packaging substrate 20; a sealing section 50 that is formed by filling a silicon resin to the inside of the frame 40, seals the LED chip 10 and bonding wires 14, 14, and is elastic; a lens 60 arranged while being overlapped to the sealing section 50; and a dome-like color conversion member 70 that is a molding in which a yellow phosphor excited by blue light radiated from the LED chip 10 is formed with a transparent material, covers the lens and the frame at the packaging surface side of the packaging substrate 20, and is arranged in a shape for forming an air layer 80 between a light emission surface 60b of the lens and the frame. The frame 40 is composed of the molding of a transparent resin made of a silicone resin, and the lens 60 is composed of a concave lens in which the light emission surface 60b is in a concave curved surface. COPYRIGHT: (C)2007,JPO&INPIT