Patent
Method and apparatus for modulating a light beam
TLDR
In this paper, a modulator consisting of a plurality of equally spaced-apart elements, each of which includes a light-reflective planar surface, is proposed. But the modulator is not suitable for the case where the elements are arranged parallel to each other.Abstract:
A modulator for modulating an incident beam of light, the modulator comprising a plurality of equally spaced-apart elements, each of which includes a light-reflective planar surface. The elements are arranged parallel to each other with their light-reflective surfaces parallel to each other. The modulator includes means for supporting the elements in relation to one another and means for moving particular ones of the elements relative to others so that the moved elements transit between a first configuration wherein the modulator acts to reflect the incident beam of light as a plane mirror, and a second configuration wherein the modulator diffracts the light reflected therefrom. In operation the light-reflective surfaces of the elements remain parallel to each other in both the first and second configurations. The perpendicular spacing between the reflective surfaces of the respective elements is equal to m/4 × the wavelength of the incident beam of light, wherein m equals an even whole number or zero when the elements are in the first configuration and m equals an odd whole number when the elements are in the second configuration.read more
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Patent
Interferometric modulation of radiation
TL;DR: An Interferometric Modulator (IMod) as discussed by the authors is a microelectromechanical device for modulating light using interference, which can be used in both embedded and directly perceived applications, providing multiple viewing modes as well as a multitude of product concepts ranging in size from microscopic to architectural in scope.
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TL;DR: In this paper, an array of modulation elements is modulated using a control circuitry connected to the array for controlling each of the modulation elements independently, each modulation element having a surface which is caused to exhibit a predetermined impedance characteristic to particular frequencies of light.
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Double substrate reflective spatial light modulator with self-limiting micro-mechanical elements
TL;DR: In this article, a spatial light modulator includes an upper optically transmissive substrate held above a lower substrate containing addressing circuitry, where one or more electrostatically deflectable elements are suspended by hinges from the upper substrate.
References
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Patent
Spatial light modulator and method
TL;DR: An electrostatically deflectable beam spatial light modulator with the beams (30), address electrodes (42, 46), and landing electrodes (40, 41) to provide soft-landing of the beams on the landing electrodes as mentioned in this paper.
Patent
Spatial light modulator
TL;DR: In this paper, a deflectable beam spatial light modulator formed from a structure of a reflecting layer on a spacer layer, typically photoresist, which in turn is on a substrate containing electronic addressing circuitry is disclosed.
Patent
Multi-level deformable mirror device
TL;DR: In this article, a bistable deformable mirror device (DMD) pixel architecture is disclosed, wherein the torsion hinges are placed in a layer different from the Torsion beam layer, which results in pixels which can be scaled to smaller dimensions while at the same time maintaining a large fractional active area.
Patent
DMD architecture and timing for use in a pulse width modulated display system
TL;DR: In this paper, the authors proposed a system architecture, individual part of the system and techniques for minimizing the burst data rate while maintaining a reasonable system speed, and the resultant system provides better resolution with a manageable data rate and bandwidth.
Patent
Digital micro-mirror based image simulation system
Michael Leddy,R. Mark Boysel,James A. Delong,James M. Florence,Tsen-Hwang Lin,Jeffrey B. Sampsell +5 more
TL;DR: In this paper, four modulation schemes including digital pulse width modulation, phase contrast modulation, full complex modulation, and analog modulation are discussed for image simulation. But, the phase contrast and full complex modulations have the capability to produce phase information within the image.