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US 5,206,674 AGranted
System for the display of images given by a spatial modulator with transfer of energy
AssigneeThomson-CSF
InventorsClaude Puech, Jean-Pierre Huignard, Michel Papuchon, Henri Raobenbach, Brigitte Loiseaux
Life of this patent
Estimating the term…
Abstract
A system for the display of images comprising: a spatial modulator of light receiving a first light beam and retransmitting a modulated beam; an energy transfer device receiving the modulated beam and a second light beam and transferring the energy from the second light beam towards the modulated beam.
Claims12
A system for the display of images comprising:
- a spatial modulator of light receiving a first light beam and retransmitting a modulated beam;
- an energy transfer device receiving the modulated beam and a second light beam and transferring the energy from the second light beam towards the modulated beam;
- and
- a focusing lens placed in the path of the first beam and focusing the modulated beam on the optical center of a projection objective.
1 more element
A system for the display of images, comprising:
- a spatial modulator of light receiving a first light beam and retransmitting a modulated beam;
- an energy transfer device receiving the modulated beam and a second light beam and transferring the energy from the second light beam towards the modulated beam;
- and
- means to shift the position of the energy transfer device with respect to the modulated beam.
1 more element
A system for the display of images comprising:
- a spatial modulator of light receiving a first light beam and retransmitting a modulated beam;
- an energy transfer device receiving the modulated beam and a second light beam and transferring the energy from the second light beam towards the modulated beam;
- several spatial modulators of light, each receiving a light beam of a particular wavelight, and energy transfer device associated with each spatial modulator receiving a beam modulated by the spatial modulator and a pump beam and giving an amplified modulated beam, a beam combination device receiving the amplified modulated beams given by the energy transfer devices and giving a combined beam.
A system for the display of images comprising:
- a spatial modulator of light receiving a first light beam and retransmitting a modulated beam;
- an energy transfer device receiving the modulated beam and a second light beam and transferring the energy from the second light beam towards the modulated beam;
- several spatial modulators of light modulating beams of determined wavelengths, a beam combination device receiving the beams modulated by the modulators and giving a combined beam, an energy transfer device receiving the combined beam and a pump beam containing one of said wavelengths and several beams having said wavelengths.
A system for the display of images comprising:
- a spatial modulator of light receiving a first light beam and retransmitting a modulated beam;
- an energy transfer device receiving the modulated beam and a second light beam and transferring the energy from the second light beam towards the modulated beam;
- several spatial modulators of light each receiving a light beam of a particular wavelength, a device for the combination of beams receiving the modulated beams given by the modulators and giving a combined beam, several energy transfer devices placed in series on the combined beam, each receiving a pump beam of one of said wavelengths, each energy transfer device enabling the amplification of one or more wavelengths and being transparent to the other wavelengths.
A system for the display of images comprising:
- a spatial modulator of light receiving a first light beam and retransmitting a modulated beam;
- an energy transfer device receiving the modulated beam and a second light beam and transferring the energy from the second light beam towards the modulated beam;
- spatial modulator receives at least three beams of different wavelengths, these three beams being focused on three different modulation elements of the spatial modulator so that they can be modulated differently, the three modulated beams being then transmitted to one or more common amplication devices.
Dependencies are inferred from the claim text.