RU97102547A - MODULATOR OF LIGHT-VALVE SYSTEM OF REFLECTIVE TYPE - Google Patents

Claims (24)

1. The modulator of the light valve system of the reflective type, which has a multilayer composition controlled in the electrostatic mode, containing a transparent substrate that supports the first transparent deformable layer and the second insulating dielectric deformable layer, the mirror layer being installed between them, and the third dielectric insulating layer mounted on the outer side of the second layer; at least one of the layers between the second layer and the substrate is electrically conductive, and the third dielectric layer is capable of receiving potential relief from one or more electron beams, whereby the mirror layer undergoes local deformation by electrostatic forces between the potential relief and the conductive layer.  2. The modulator of the light valve system according to claim 1, characterized in that the mirror layer has one or more layers made of one or more materials, one of which is at least conductive.  3. The modulator of the light valve system according to claim 1 or 2, characterized in that the first and second layers are made of elastomers.  4. The modulator of the light valve system according to any one of paragraphs. 1-3, characterized in that each deformable layer has one or more layers made of one or more materials.  5. The modulator of the light valve system according to any one of paragraphs. 1-4, characterized in that the third layer has one or more layers, while at least one of them has properties that protect the underlying layers from the flow of electrons.  6. The modulator of the light valve system according to claim 5, characterized in that at least one layer of the aforementioned layers has a low rate of leakage of gases emanating from one or more underlying layers in order to isolate them from the electron beam chamber.  7. The modulator of the light valve system according to any preceding paragraph, characterized in that the multilayer structure is so curved that it can obtain any desired optical curvature and quality.  8. The modulator of the light valve system according to any preceding paragraph, characterized in that at least one layer of the third layer is more dense than two deformable layers.  9. The modulator of the light valve system according to any preceding paragraph, characterized in that the local deformation of the mirror layer is such that it allows significant control of the light through diffraction processes.  10. The modulator of the light valve system according to any preceding paragraph, characterized in that it contains a conductive layer on the outside of the third layer with an opening of any desired shape, into which a charge is applied, which causes the mirror to deform, while the layer is accordingly biased to delay secondary electrons.  11. A reproducing tube of a deformable light valve system having a shell with a transparent bottom directed towards one or more electronic projectors 36, characterized in that a modulator of the light valve system according to the preceding paragraph is installed within the aforementioned bottom.  12. A reproducing tube of a deformable light valve system according to claim 11, characterized in that the bottom forms the aforementioned transparent substrate.  13. A reproducing tube of a deformable light valve system according to claim 11 or 12, characterized in that the peripheral part of the multilayer structure is sealed under vacuum on the aforementioned substrate.  14. The reproducing tube of the deformable light valve system according to any one of paragraphs. 11-13, characterized in that the erasing of the potential relief is carried out continuously by an electron beam or a gun selected to erase during any desired period of the television frame or for any other period of time.  15. The reproducing tube deformable light valve system according to paragraphs. 11 - 13, characterized in that the existing potential relief on the third layer is erased by the scanning electron beam along one or several lines at a time (per unit of time) or one or more image elements at a time (per unit of time).  16. The reproducing tube of the deformable light valve system according to any one of paragraphs. 11-15, characterized in that one electron gun records the aforementioned potential relief, and the second electron gun performs the function of erasing.  17. The reproducing tube of the deformable light valve system according to any one of paragraphs. 11-16, characterized in that the position of the deformation or the mounds and valleys of each image element are changed or replaced at any desired frequency to avoid destruction of the composition of the light valve system.  18. The reproducing tube of the deformable light valve system according to any one of paragraphs. 11-17, characterized in that the displacement of the tube and the mode of operation are selected such that the minimum brightness level (Vmin) is higher than the brightness level created by the redistribution of secondary electron emission.  19. The reproducing tube of the deformable light valve system according to any one of paragraphs. 11 to 18, characterized in that one light valve system controls two or more colors of light by recording two or more reliefs of different diffraction gratings or grooves of different wavelengths simultaneously in the same modulator.  20. The modulator of the light valve system and the reproducing tube according to any one of paragraphs. 11-19, characterized in that they can be used in any appropriate optical schlieren system.  21. A projection television system having an optical schlieren system, a screen and one or more reproducing tubes according to any one of paragraphs. 11-19, characterized in that the reproducing tubes are controlled by signals that cause the modulator of the light-valve system to modulate the light coming from the light source, whereby the optical system projects a television-type image onto the screen.  22. A projection television system having a light source, an optical schlieren system, a screen and one or more reproducing tubes according to any one of paragraphs. 11-19, characterized in that the reproducing tubes are controlled by signals that cause each modulator of the light valve system to modulate one or more primary colors of the light coming from the light source, whereby the optical system projects a color television image onto the screen.  23. A projection television system having several individual systems according to claim 21 or 22 without individual screens, characterized in that several projected images are positioned edge to edge, and the contents of the reproduced images exactly match at the corresponding edges to create a substantially continuous image on one larger screen.  24. Projection television system according to any one of paragraphs. 21-23, characterized in that the frame duration and frequency have any desired value, including a static image.