Illumination device and method for manufacturing the same
AssigneeCitizen Electronics Co., Ltd.
InventorsNorikazu Kadotani, Koichi Fukasawa, Hirohiko Ishii
Life of this patent
Estimating the term…
Abstract
An illumination device includes a circuit board (11), an LED element (12) mounted on the circuit board, a light-transmitting sealing resin (16) covering the LED element and containing a fluorescent material, a light reflector (14) covering the light-transmitting sealing resin and reflecting light emitted from the LED element, and a light-guiding part (13) comprising a light-transmitting plate connected to the light-transmitting sealing resin, the light-guiding part guiding the light emitted from the LED element and including a light emission surface (13a) configured to emit the light.
Claims11
An illumination device, comprising:
- a circuit board having a mount surface;
- at least one light-emitting diode element mounted on the mount surface of the circuit board;
- a light-transmitting sealing resin mounted on the mount surface, covering the light-emitting diode element and containing at least one kind of fluorescent material, the light-transmitting sealing resin having peripheral surfaces, and a light-emitting surface that faces the mount surface of the circuit board and;
- a light reflector layered on and covering the peripheral surfaces of the light-transmitting sealing resin except the light-emitting surface, and the light reflector configured to reflect light thereon, after the light emitted from the light-emitting diode element in the light-transmitting sealing resin;
- and
- a light-transmitting plate connected to light-emitting surface of the light-transmitting sealing resin,
- the light-transmitting plate including at least one light emission surface, and the light-transmitting plate that receives light through the light-emitting surface of the light-transmitting sealing resin.
An illumination device, comprising:
- a circuit board having a mount surface and electrodes;
- at least one light-emitting diode element mounted on the mount surface of the circuit board and electrically connected to the electrodes;
- a light-transmitting sealing resin provided on the mount surface and sealing the light-emitting diode element and including a light-emitting surface opposing to the mount surface, a contact surface in contact with the mount surface and peripheral surfaces disposed between the light-emitting surface and the contact surface;
- a first light reflector layered on the peripheral surfaces of the light-transmitting sealing resin;
- a light-transmitting plate coupled to the light-emitting surface of the light-transmitting sealing resin and including a coupled surface coupled to the light-transmitting sealing resin, an opposing surface that opposes the coupled surface and peripheral surfaces disposed between the coupled surface and the opposing surface;
- a light-emitting surface provided on at least one of the opposing surface and the peripheral surfaces of the light-transmitting plate;
- and
- a second light reflector configured to cover the opposing surface and the peripheral surfaces of the light-guiding plate other than the light-emitting surface.
Dependencies are inferred from the claim text.