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US 6,057,639 AGranted
Photoemission apparatus with spatial light modulator
AssigneeSharp Kabushiki Kaisha
InventorsPaul May, Graham J. Woodgate, David Ezra
Life of this patent
Estimating the term…
Abstract
A photoemission apparatus includes a spatial light modulator (2) and an integral photoemitter (5). A lens array (1) focuses light through the spatial light modulator (2) onto the photoemitter. Electrons emitted by the photoemitter (5) are deflected electrostatically by electrodes (10) and are accelerated through a screening mesh (8) onto a phosphor screen (6). Light emitted by the screen (6) passes through a further lens array (7).
Claims24
A photoemission apparatus comprising:
- a spatial light modulator,
- a photoemitter for emitting electrons in response to optical radiation received via the spatial light modulator, and
- an electron deflection means for deflecting electrons emitted by the photoemitter.
A photoemission apparatus, comprising:
- a spatial light modulator,
- a photoemitter for emitting electrons in response to optical radiation received via the spatial light modulator,
- an electron deflection means for deflecting electrons emitted by the photoemitter,
- wherein said spatial light modulator, said photoemitter, and said electron deflection means are generally oriented in parallel layers, and
- wherein the electron deflection means and the photoemitter are formed in a common layer.
2 more elements
A photoemission apparatus comprising:
- a spatial light modulator,
- a photoemitter for emitting electrons in response to optical radiation received via the spatial light modulator, and
- a phosphorescent screen and acceleration anode spaced from the photoemitter by a vacuum,
- wherein the phosphorescent screen comprises a plurality of regions for emitting different colors and the spatial light modulator comprises a plurality of picture elements each of which is aligned with a respective region of the phosphorescent screen.
1 more element
A photoemission apparatus, comprising:
- a spatial light modulator,
- a photoemitter for emitting electrons in response to optical radiation received via the spatial light modulator, and
- an electron deflection means for deflecting electrons emitted by the photoemitter,
- wherein the electron deflection means and the photoemitter are formed in a single layer.
1 more element
Dependencies are inferred from the claim text.