Tri wavelength diffracting modulation unit, imager, time and space modulation method
A modulation unit and three-wavelength technology, applied in instruments, optical components, optics, etc., to achieve low power consumption and improved integration
Active Publication Date: 2012-07-04
XIAN YISHEN OPTOELECTRONICS TECH CO LTD
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However, the defect of existing GLV devices lies in the wavelength dependence of digital control algorithms, especially in the schemes related to time series or spatial pattern color management in micro-display projection applications, when it is required to spatially modulate the incident light covering the visible spectrum. Defects are more obvious
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[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0037] Refer to the following Figure 1~6 Describe the TWDM device of the present invention. For clarity of description, some parts that are well known or irrelevant to the present invention are omitted.
[0038] figure 1 It is a top view of the TWDM unit 100 according to the embodiment of the present invention. In order to spatially modulate th...
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The present invention provides a tri wavelength diffracting modulation unit, an imager and a time and space modulation method, wherein the tri wavelength diffracting modulation unit comprises the following components: a first set of movable reflective rigid plate (110), a second set of movable reflective rigid plate (120), a first set of top reflection surface (111) provided on the top of the first set of movable reflective rigid plate (110), and a second set of top reflection surface (121) provided on the top of the second set of movable reflective rigid plate (120). The first set of top reflection surface (111) and the second set of top reflection surface (121) are parallel with a top reference surface (109), and have same reflectivity to the incident electromagnetic radiant light (900)with a preset spectrum along a first direction (1). The invention improves the digitization of control algorithm and integration level of multi-wavelength modulation in the application of a projection system and has lower power consumption.
Description
technical field [0001] The present invention relates to an optical modulation device, in particular to a Tri Wavelength Diffractive Modulation (TWDM for short) unit, a TWDM imager and a time and space modulation method using the TWDM unit and the TWDM imager. Background technique [0002] Spatial light modulators, widely used in microdisplay projection and other optical systems, are solid-state microarray devices capable of controlling or modulating incident light with specific spatial patterns associated with a series of image input electrical signals through which Devices can modulate the intensity, phase, polarization, or direction of incident light. [0003] The two most commonly used spatial light modulators use two-dimensional array structures of micro-electro-mechanical systems (Micro-Electro-Mechanical systems, referred to as: MEMS) devices to provide two-dimensional modulation of incident light, such as: Texas Instruments (Texas Instruments) Digital Mirror Device (...
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IPC IPC(8): G02B26/00
CPCG02B26/001G02B5/201
Inventor 河·H·黄
Owner XIAN YISHEN OPTOELECTRONICS TECH CO LTD