IMAGE DISPLAY APPARATUS
First Claim
1. An image display apparatus employing a semiconductor laser as a light source, comprising:
- a red color laser light source apparatus emitting red color laser light;
a green color laser light source apparatus emitting green color laser light;
a blue color laser light source apparatus emitting blue color laser light;
a cooling fan delivering cooling air that cools each color laser light source apparatuses;
a temperature sensor detecting a temperature of the red color laser light source apparatus; and
an air flow blocker preventing the distribution of cooling air to the temperature sensor.
1 Assignment
0 Petitions
Accused Products
Abstract
An image display apparatus including a laser light source apparatus with a semiconductor laser as a light source increases the heat releasing ability of the laser light source apparatus in the image display apparatus. In order to accomplish this, a heat sink is provided to a green color laser light source apparatus, which generates green color light by wavelength conversion from infrared light and, therefore, produces a greater amount of heat than the other laser light source apparatuses. In addition, an air flow blocking cover is mounted on the surface of the holder, covering the temperature sensor, to prevent distribution to the temperature sensor of cooling air from the cooling fan disposed adjacent to the red color laser light source apparatus. It is thus possible to comply with laser safety standards.
17 Citations
18 Claims
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1. An image display apparatus employing a semiconductor laser as a light source, comprising:
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a red color laser light source apparatus emitting red color laser light; a green color laser light source apparatus emitting green color laser light; a blue color laser light source apparatus emitting blue color laser light; a cooling fan delivering cooling air that cools each color laser light source apparatuses; a temperature sensor detecting a temperature of the red color laser light source apparatus; and an air flow blocker preventing the distribution of cooling air to the temperature sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An image display apparatus employing a semiconductor laser as a light source, comprising:
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a first laser light source apparatus emitting one of a red color, a green color, and a blue color laser light; a second laser light source apparatus emitting one of another of the colors of laser light; a third laser light source apparatus emitting the remaining color of laser light; and a cooling fan distributing cooling air that cools each of the laser light source apparatuses, wherein the first laser light source apparatus is provided with the heat releasing member, and the heat releasing member integrally includes a tubular portion and a wall portion, the wall portion extending from the tubular portion to catch the cooling air distributed from the cooling fan and to guide the cooling air to the tubular portion, through which the cooling air passes. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification