Light source apparatus and image projection apparatus
AssigneeCanon Kabushiki Kaisha
InventorMakoto Nomoto
Life of this patent
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Abstract
A light source apparatus includes a light source, a first heat radiation unit configured to radiate heat from the light source, a wavelength conversion element configured to convert the light from the light source into light with a different wavelength, and a second heat radiation unit configured to radiate heat from the wavelength conversion element. The light source and the wavelength conversion element are disposed opposite to each other. A flowing direction of first cooling air flowing through the first heat radiation unit and a flowing direction of second cooling air flowing through the second heat radiation unit are same direction to each other.
Claims14
A light source apparatus comprising:
- a light source;
- a first heat radiation unit configured to radiate heat from the light source;
- a wavelength conversion element configured to convert the light from the light source into light with a different wavelength;
- and
- a second heat radiation unit configured to radiate heat from the wavelength conversion element,
- wherein the light source and the wavelength conversion element are disposed opposite to each other,
- wherein a flowing direction of first cooling air flowing through the first heat radiation unit and a flowing direction of second cooling air flowing through the second heat radiation unit are same direction to each other, and
- wherein a flow of the first cooling air is generated by a fan different from a fan that generates a flow of the second cooling air.
An image projection apparatus comprising:
- a light source apparatus;
- an image generator configured to modulate light emitted from the light source apparatus and to generate image light;
- and
- a projection lens configured to project the image light onto a projection surface to display the image,
- wherein the light source apparatus includes:
- a light source;
- a first heat radiation unit configured to radiate heat from the light source;
- a wavelength conversion element configured to convert the light from the light source into light with a different wavelength;
- and
- a second heat radiation unit configured to radiate heat from the wavelength conversion element,
- wherein the light source and the wavelength conversion element are disposed opposite to each other,
- wherein a flowing direction of first cooling air flowing through the first heat radiation unit and a flowing direction of second cooling air flowing through the second heat radiation unit are same direction to each other, and
- wherein a flow of the first cooling air is generated by a fan different from a fan that generates a flow of the second cooling air.
Dependencies are inferred from the claim text.