DIFFERENTIAL INTERFEROMETRIC LIGHT MODULATOR AND IMAGE DISPLAY DEVICE
First Claim
Patent Images
1. An image display device comprising:
- a polarizing prism that splits a light beam into different paths corresponding to polarization components of the light;
a microelectromechanical device that imparts a relative phase shift to the light in the paths prior to recombination of the light in the polarizing prism;
a scanning mirror for scanning the recombined beam; and
, a projection lens that magnifies the recombined beam.
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Abstract
A light modulator incorporates a polarization sensitive prism and a novel MEMS ribbon device to impart a relative phase shift to polarization components of an incident light beam. A linear array of phase shifting elements in the MEMS device creates a linear image which is scanned to form a two dimensional scene. Alternatively the deflection of each cantilever in a linear array of atomic force microscope cantilevers may be measured simultaneously.
36 Citations
10 Claims
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1. An image display device comprising:
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a polarizing prism that splits a light beam into different paths corresponding to polarization components of the light;
a microelectromechanical device that imparts a relative phase shift to the light in the paths prior to recombination of the light in the polarizing prism;
a scanning mirror for scanning the recombined beam; and
,a projection lens that magnifies the recombined beam. - View Dependent Claims (2, 3, 4, 5)
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6. An atomic force microscope comprising:
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a polarizing prism that splits a light beam into different paths corresponding to polarization components of the light; and
,an atomic force microscope cantilever that imparts a relative phase shift to light in the paths.
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7. An image display device comprising:
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an interferometer that splits a light beam into polarization components each of which travels a separate path; and
,a microelectromechanical phase shifting surface device that imparts a relative phase shift to the polarization component in each path. - View Dependent Claims (8, 9, 10)
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Specification