Topic
Spatial light modulator
About: Spatial light modulator is a research topic. Over the lifetime, 9043 publications have been published within this topic receiving 130143 citations.
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TL;DR: The novel SLM-based system is more optically efficient, achieves higher contrast, and has improved optical-sectioning capabilities compared with those of other proposed instruments for confocal microendoscopy.
Abstract: We present a novel fiber-optic confocal microscope in which the scanning operation is achieved by use of a spatial light modulator (SLM) to sequentially illuminate individual fibers or patterns of multiple fibers. Experimental images are presented, and the optical-sectioning capability of the device is demonstrated. The novel SLM-based system is more optically efficient, achieves higher contrast, and has improved optical-sectioning capabilities compared with those of other proposed instruments for confocal microendoscopy.
80 citations
Patent•
30 Jun 1992TL;DR: In this paper, a micro-mirror type of spatial light modulator has an array of mirror elements whose height with respect to a deflection plane can be individually adjusted, such that an input beam of light is phase modulated, and by interference, it is deflected to a desired detector.
Abstract: A method and apparatus for performing free space optical interconnection. A micro-mirror type of spatial light modulator has an array of mirror elements, whose height with respect to a deflection plane can be individually adjusted. These heights are adjusted such that an input beam of light is phase modulated, and by interference, it is deflected to a desired detector. More than one input beam can be used with the same spatial light modulator, whose mirror elements are adjusted in patterns for deflecting and focussing to multiple detectors.
80 citations
Patent•
11 Dec 1996
TL;DR: In this paper, a color spatial light modulator has red, green, and blue micromirror arrays juxtaposed in parallel, each of which has a filter for reflecting specific color light.
Abstract: A color spatial light modulator has red, green, and blue micromirror arrays juxtaposed in parallel. Each micromirror array has a number of micromirrors each formed with a filter for reflecting specific color light. As data "1" is written to a memory cell of an SRAM, the micromirror tilts by +θ and enters a valid reflection state in which spot light is utilized. As data "0" is written, the micromirror tilts by -θ and enters an invalid reflection state in which spot light is not utilized. A data write control circuit converts image data into mirror drive data and writes it to SRAM. Three-color parallel line light beams generated by the three-color micromirror arrays are projected by a projector lent onto color paper. A three-color image is printed line sequentially on the color paper.
80 citations
Patent•
24 Nov 2004
TL;DR: In this article, a display (800) includes a solid state light device (810) and a spatial light modulator (830) in optical communication with the solid-state light device.
Abstract: A display (800) includes a solid state light device (810) and a spatial light modulator (830) in optical communication with the solid state light device. The solid state light device includes an array of solid state radiation sources (812) to generate radiation, where each solid state radiation source includes a controllable radiation output. The solid state light device further includes an array of optical concentrators (814), where each optical concentrator receives radiation from a corresponding one of the array of solid state radiation sources. The solid state light device further includes a plurality of optical fibers (816), where each of the plurality of optical fibers includes an input end (818) that receives concentrated radiation from a corresponding optical concentrator. The spatial light modulator includes a plurality of controllable elements operable to modulate light from the solid state light device.
80 citations
TL;DR: Analysis of the pixel spread function reveals that a radial-line pixel pattern for reference waves gave a sharper image than other reference pixel patterns, and it is shown that a random phase modulation applied to each reference pixel improved the image formation.
Abstract: Image formation in a collinear holographic storage system was analyzed. The wavefront from each pixel of a spatial light modulator was regarded as a plane wave in the recording medium, and its wave vector was determined by the position of the pixel. The hologram in the recording medium was treated as the summation of all gratings written by all combinations of two plane waves. The image of a data page was formed by diffraction of the reference waves by all gratings. The results of the simulation showed good agreement with experiment. We introduced the pixel spread function to describe the image formation characteristics. Analysis of the pixel spread function reveals that a radial-line pixel pattern for reference waves gave a sharper image than other reference pixel patterns. It is also shown that a random phase modulation applied to each reference pixel improved the image formation.
80 citations