Illumination optical system and image projection apparatus with the same
AssigneeCanon Kabushiki Kaisha
InventorsTakashi Sudo, Yuuki Maeda
Life of this patent
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Abstract
An illumination optical system illuminates an image display element and includes a first lens array configured to divide light emitted from a light source, a second lens array configured to receive light from the first lens array, and a condenser optical system configured to guide light from the second lens array to the image display element, and a conjugate point of the image display element is located between an incident surface of the first lens array and an incident surface of the second lens array.
Claims16
An illumination optical system which illuminates an image display element, the illumination optical system comprising:
- a first lens array configured to divide light emitted from a light source;
- a second lens array configured to receive light from the first lens array;
- and
- a condenser optical system configured to guide light from the second lens array to the image display element,
- wherein a conjugate point of the image display element is located between an incident surface of the first lens array and an incident surface of the second lens array.
An image projection apparatus comprising:
- an image display element;
- and
- an illumination optical system configured to illuminate the image display element,
- wherein the illumination optical system includes:
- a first lens array configured to divide light emitted from a light source,
- a second lens array configured to receive light from the first lens array, and
- a condenser optical system configured to guide light from the second lens array to the image display element, and
- wherein a conjugate point of the image display element is located between an incident surface of the first lens array and an incident surface of the second lens array.
Dependencies are inferred from the claim text.