BAR-TYPE DISPLAY DEVICE USING DIFFRACTIVE LIGHT MODULATOR
First Claim
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1. A display device using a diffractive light modulator, comprising:
- a light source unit for generating and emitting a plurality of beams of light;
a light condensing unit for causing the plurality of beams of light, emitted from the light source unit, to have a same light path;
an illumination unit for converting the light, emitted from the light source unit, into linear light;
a diffractive light modulator for generating diffracted light having a plurality of diffraction orders so that diffracted light having one or more diffraction orders required for an application has a light intensity appropriate for the application at each point by modulating linear incident light, and emitting the diffracted light;
a light path adjustment unit for causing the linear light, emitted from the illumination unit, to enter the diffractive light modulator, and emitting the diffracted light, emitted from the diffractive light modulator, along a line extending from an incident light path; and
a projection unit for forming images by projecting the diffracted light, emitted from the diffractive light modulator, onto a screen.
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Abstract
Disclosed herein is a display device using a diffractive light modulator. The display device includes a light source unit, a light condensing unit, an illumination unit, a diffractive light modulator, a light path adjustment unit, and a projection unit. The light path adjustment unit causes the linear light to enter the diffractive light modulator, and emits the diffracted light along a line extending from an incident light path.
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Citations
7 Claims
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1. A display device using a diffractive light modulator, comprising:
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a light source unit for generating and emitting a plurality of beams of light; a light condensing unit for causing the plurality of beams of light, emitted from the light source unit, to have a same light path; an illumination unit for converting the light, emitted from the light source unit, into linear light; a diffractive light modulator for generating diffracted light having a plurality of diffraction orders so that diffracted light having one or more diffraction orders required for an application has a light intensity appropriate for the application at each point by modulating linear incident light, and emitting the diffracted light; a light path adjustment unit for causing the linear light, emitted from the illumination unit, to enter the diffractive light modulator, and emitting the diffracted light, emitted from the diffractive light modulator, along a line extending from an incident light path; and a projection unit for forming images by projecting the diffracted light, emitted from the diffractive light modulator, onto a screen. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification