ILLUMINATION DEVICE AND METHOD FOR MANUFACTURING THE SAME
First Claim
Patent Images
1. 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 a light-transmitting 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.
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Accused Products
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.
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Citations
18 Claims
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1. An illumination device, comprising:
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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 a light-transmitting 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. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for manufacturing an illumination device, comprising:
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mounting a plurality of light-emitting diode elements on a collective circuit board; forming a light-transmitting sealing resin layer containing at least one kind of fluorescent material on a collective mount surface of the collective circuit board to cover the plurality of light-emitting diode elements; forming sealing resin-grooves in the light-transmitting sealing resin layer to divide the light-transmitting sealing resin layer at predetermined intervals lengthwise and crosswise; forming a first light reflector by filling the sealing resin-grooves with a light-reflecting resin; forming a light-guiding part comprising a light-transmitting plate on an upper surface of each of the light-transmitting sealing resin layer and the first light reflector; and cutting the the collective circuit board including the plurality of light-emitting diode elements, the light-transmitting sealing resin layer, the first light reflector and the light-guiding part at positions corresponding to the sealing resin-grooves to form individual illumination devices. - View Dependent Claims (11, 12)
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9. A method for manufacturing an illumination device, comprising:
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mounting a plurality of light-emitting diode elements on a collective circuit board; forming a light-transmitting sealing resin layer containing at least one kind of fluorescent material on the collective circuit board to cover the plurality of light-emitting diode elements; forming sealing resin-grooves in the light-transmitting sealing resin layer to divide the light-transmitting sealing resin layer at predetermined intervals lengthwise and crosswise; forming a first light reflector by filling the sealing resin-grooves with a light-reflecting resin; forming a light-guiding part comprising a light-transmitting plate on an upper surface of each of the light-transmitting sealing resin layer and the first light reflector; forming a light guiding part-groove in the light-guiding part to divide the light-guiding part at a position corresponding to one of the lengthwise and crosswise sealing resin-grooves; forming a second light reflector in the light guiding part-groove and on an upper surface of the light-guiding part; and cutting the collective circuit board including the plurality of light-emitting diode elements, the light-transmitting sealing resin layer, the first and second light reflectors and the light-guiding part at positions corresponding to the sealing resin-grooves to form individual illumination devices. - View Dependent Claims (13)
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10. A method for manufacturing an illumination device, comprising:
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mounting a plurality of light-emitting diode elements on a collective circuit board; forming a light-transmitting sealing resin layer containing a fluorescent material on the collective circuit board to cover the plurality of light-emitting diode elements; forming sealing resin-grooves in the light-transmitting sealing resin layer to divide the light-transmitting sealing resin layer at predetermined intervals lengthwise and crosswise; forming a first light reflector by filling the sealing resin-grooves with a light-reflecting resin; forming a light-guiding part comprising a light-transmitting plate on an upper surface of each of the light-transmitting sealing resin layer and the first light reflector; forming a first light guiding part-groove in the light-guiding part to divide the light-guiding part at a position corresponding to one of the lengthwise and crosswise sealing resin-grooves and a second light guiding part-groove in the light-guiding part to divide the light-guiding part at a position corresponding to at least one of the other of the lengthwise and crosswise sealing resin-grooves; forming a second light reflector in the first and second light guiding part-grooves and on an upper surface of the light-guiding part; and cutting the collective circuit board including the plurality of light-emitting diode elements, the light-transmitting sealing resin, the first and second light reflectors, the first and second light guiding part-grooves and the light-guiding part at positions corresponding to the sealing resin-grooves to form individual illumination devices. - View Dependent Claims (14)
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15. An illumination device, comprising:
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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. - View Dependent Claims (16, 17, 18)
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Specification