Light irradiating device
First Claim
1. A light irradiating device which extends on an irradiating surface in a first direction and irradiates linear light having a predetermined line width in a second direction intersecting the first direction, the light irradiating device comprising:
- a substrate which is substantially parallel to the first direction and the second direction;
a plurality of light emitting diode (LED) light sources which is disposed on a surface of the substrate with predetermined intervals along the first direction and emits light in a third direction intersecting the surface of the substrate;
a cooling unit which includes a heat transporting unit which is at least partially in contact with a rear surface of the substrate, extends in an opposite direction to the third direction from the substrate, and transports heat generated from the LED light source to the opposite direction to the third direction, and a plurality of heat radiating pins which is mounted on the heat transporting unit to radiate heat of the heat transporting unit into the air;
an LED driver circuit which drives the plurality of LED light sources;
a housing which has one surface of the second direction and the other surface opposite to the one surface, an opening sucking and exhausting external air on the one surface, accommodates the cooling unit and the LED driver circuit, and forms a wind tunnel in an area where the cooling unit and the LED driver circuit are disposed; and
a fan which is provided at an opposite side to the third direction of the cooling unit to guide the external air to the wind tunnel and generate an air current in the wind tunnel,wherein the cooling unit is disposed along the one surface of the housing andthe LED driver circuit is disposed along the other surface of the housing.
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Accused Products
Abstract
The light irradiating device which irradiates linear light includes: a substrate which is parallel to first and second directions; a plurality of LED light sources which emits light in a third direction intersecting a surface of the substrate; a heat transporting unit which extends in a direction opposite to the third direction from the substrate; a cooling unit which has a heat radiating pin radiating the heat of the heat transporting unit into the air, an LED driver circuit which drives the LED light source; a housing which has an opening sucking and exhausting external air on one surface of the second direction, accommodates the cooling unit and the LED driver circuit, and forms a wind tunnel in an area where the cooling unit and the LED driver circuit are disposed; and a fan which is provided at a side opposite to the third direction of the cooling unit.
16 Citations
13 Claims
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1. A light irradiating device which extends on an irradiating surface in a first direction and irradiates linear light having a predetermined line width in a second direction intersecting the first direction, the light irradiating device comprising:
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a substrate which is substantially parallel to the first direction and the second direction; a plurality of light emitting diode (LED) light sources which is disposed on a surface of the substrate with predetermined intervals along the first direction and emits light in a third direction intersecting the surface of the substrate; a cooling unit which includes a heat transporting unit which is at least partially in contact with a rear surface of the substrate, extends in an opposite direction to the third direction from the substrate, and transports heat generated from the LED light source to the opposite direction to the third direction, and a plurality of heat radiating pins which is mounted on the heat transporting unit to radiate heat of the heat transporting unit into the air; an LED driver circuit which drives the plurality of LED light sources; a housing which has one surface of the second direction and the other surface opposite to the one surface, an opening sucking and exhausting external air on the one surface, accommodates the cooling unit and the LED driver circuit, and forms a wind tunnel in an area where the cooling unit and the LED driver circuit are disposed; and a fan which is provided at an opposite side to the third direction of the cooling unit to guide the external air to the wind tunnel and generate an air current in the wind tunnel, wherein the cooling unit is disposed along the one surface of the housing and the LED driver circuit is disposed along the other surface of the housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A light irradiating device which extends on an irradiating surface in a first direction and irradiates linear light having a predetermined line width in a second direction intersecting the first direction, the light irradiating device comprising:
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a substrate which is substantially parallel to the first direction and the second direction; a plurality of light emitting diode (LED) light sources which is disposed on a surface of the substrate with predetermined intervals along the first direction and emits light in a third direction intersecting the surface of the substrate; a cooling unit which includes a heat transporting unit which at least partially abuts against a rear surface of the substrate, extends in an opposite direction to the third direction from the substrate, and transports heat generated from the LED light source to the opposite direction to the third direction, and a plurality of heat radiating pins which is mounted on the heat transporting unit to radiate heat of the heat transporting unit into the air; an LED driver circuit which drives the plurality of LED light sources; a housing which has an opening sucking and exhausting external air on one surface of the second direction, accommodates the cooling unit and the LED driver circuit, and forms a wind tunnel in an area where the cooling unit and the LED driver circuit are disposed; and a fan which is provided between the opening and the heat radiating pin in the third direction to guide the external air to the wind tunnel and generate an air current in the wind tunnel, wherein the LED driver circuit is disposed along the one direction and the cooling unit is disposed along the other surface which is opposite to the one surface.
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Specification