Image display device and projector
First Claim
1. An image display device for modulating light from a light source according to display image data and displaying an image, comprising:
- a first light modulation element that modulates light from the light source and is arranged in a regular manner, a second light modulation element that modulates light from the first light modulation element and is arranged in a regular manner, and an illumination optical system that leads a light beam, which has been modulated by the first light modulation element, to the second light modulation element;
the illumination optical system comprising all optical element that spectrally illuminates a light beam from the first light modulation element to the second light modulation element at a predetermined position, the optical element being provided between the first light and second light modulation elements;
the optical element comprising a prism group including prism elements, each prism element comprising a refractive surface that refracts an incident light in a predetermined direction
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Accused Products
Abstract
An image display device modulates light from a light source according to display image data and displays an image, and includes a first light modulation element that modulates light from the light source, a second light modulation element that modulates light from the first light modulation element, and an illumination optical system that leads a light beam, which has been modulated by the first light modulation element, to the second light modulation element; the illumination optical system comprising an optical element that spectrally illuminates a light beam from the first light modulation element to the second light modulation element at a predetermined position, the optical element being provided between the first light and second light modulation elements and the optical element including a prism group including prism elements, each prism element including a refractive surface that refracts an incident light in a predetermined direction.
59 Citations
14 Claims
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1. An image display device for modulating light from a light source according to display image data and displaying an image, comprising:
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a first light modulation element that modulates light from the light source and is arranged in a regular manner, a second light modulation element that modulates light from the first light modulation element and is arranged in a regular manner, and an illumination optical system that leads a light beam, which has been modulated by the first light modulation element, to the second light modulation element;
the illumination optical system comprising all optical element that spectrally illuminates a light beam from the first light modulation element to the second light modulation element at a predetermined position, the optical element being provided between the first light and second light modulation elements;
the optical element comprising a prism group including prism elements, each prism element comprising a refractive surface that refracts an incident light in a predetermined direction - View Dependent Claims (2, 3, 4, 5, 6, 7, 13)
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8. An image display device that modulates light from a light source according to display image data and displays an image, comprising:
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a first light modulation element that modulates light from the light source;
a second light modulation element that modulates light incident from the first light modulation element;
a relay optical system between the first and second light modulation elements, the relay lens relaying an optical image formed by the first light modulation element onto a pixel surface of the second light modulation element;
an optical low pass filter provided between the first light modulation element and the second light modulation element; and
a micro-lens array that collects light from the optical low pass filter in each pixel of the second light modulation element. - View Dependent Claims (9, 10, 11, 12, 14)
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Specification