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Subassembly of imaging displacement and optical projection device

A technology of imaging position and displacement, applied in the direction of using projection device image reproducer, optics, projection device, etc., to achieve the effect of improving horizontal definition and vertical definition, and improving column definition

Inactive Publication Date: 2006-07-05
YOUNG OPTICS
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Problems solved by technology

Since the known vibrating mechanism 140 can only move the imaging positions of these sub-images 114a horizontally or vertically by a distance of 1 / 2 pixel, it can only improve the horizontal definition or vertical definition of the image.

Method used

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  • Subassembly of imaging displacement and optical projection device
  • Subassembly of imaging displacement and optical projection device
  • Subassembly of imaging displacement and optical projection device

Examples

Experimental program
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Embodiment Construction

[0068] figure 2 is a schematic structural view showing an optical projection device according to a preferred embodiment of the present invention, and FIG. 3 is a perspective view showing a projection lens and an imaging displacement assembly. refer to figure 2 Similar to FIG. 3 , the optical projection device 200 of this embodiment includes an illumination system 210 , a reflective light valve 220 , a projection lens 230 and an image displacement assembly 240 . Wherein, the lighting system 210 has a light source 212 suitable for providing a light beam 214 , and the reflective light valve 220 is arranged on the transmission path of the light beam 214 . The reflective light valve 220 is adapted to convert the light beam 214 into a plurality of sub-images 214a within each frame time. In addition, the projection lens 230 is disposed on the transmission path of the sub-images 214a, and the reflective light valve 220 is located between the illumination system 210 and the project...

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Abstract

The invention is an image shifting component and an optical projector, where the image shifting component is applied to a projector to switch imaging positions of plural subimages within the time of each image frame and comprises a first vibrating mechanism and a second vibrating mechanism, where the first vibrating mechanism is arranged in a subimage transfer path and shifts the imaging positions of these subimages by a first distance within the time of each image frame; besides, the second vibrating mechanism is also arranged in the image transfer path and shifts them by a second distance within the time of each image frame. The image shifting component can improve image definition.

Description

technical field [0001] The invention relates to an imaging displacement assembly, and in particular to an imaging displacement assembly capable of improving image clarity. Background technique [0002] Generally, rear projection display products mainly generate images by an optical engine and project them on the screen. In order to make the image projected by the optical engine on the screen have higher definition, the optical engine needs to use a display element with higher definition. However, since the cost of a display element with a higher definition is also higher, in view of the cost, there is a method of improving image definition through a vibrating mechanism in the known technology. [0003] figure 1 It is a schematic diagram showing the structure of a known optical projection device. refer to figure 1 , the known optical projection device 100 includes an illumination system 110 , a digital micromirror device 120 , a projection lens 130 and a vibration mechani...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/14G03B21/00H04N5/74H04N9/31
Inventor 张维胜李元裕钟岱玲林维赐云麒锥王万强
Owner YOUNG OPTICS
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