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Projection method and projection device with improved projection characteristics

A kind of projection equipment and projection technology, which is applied in the direction of using projection device image reproducer, color TV parts, color TV, etc., which can solve the problems of color interference and uneven coverage of projected images

Active Publication Date: 2011-12-28
OSRAM GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Manufacturing-induced minimal angular deviations of the superimposed beams lead to uneven coverage of the individual spots on the projection surface, which causes color disturbances in the projected image (Farbstoerung)

Method used

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  • Projection method and projection device with improved projection characteristics
  • Projection method and projection device with improved projection characteristics
  • Projection method and projection device with improved projection characteristics

Examples

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Embodiment Construction

[0088] figure 1 A schematic structure of a projection device with three radiation sources 100 , 200 and 300 is shown. These radiation sources emit beams 110 , 210 and 310 . Since not all three radiation sources can be arranged at one location, the beams of radiation sources 200 and 300 are deflected by deflection reflectors 220 and 320 and aligned with beam 110 . The three beams impinge on the first reflector 400 , which is movable. The three radiation beams 110 , 210 and 310 can be deflected onto the projection surface 10 by the movement of the first reflector 400 . An image is thereby produced point-to-point on projection surface 10 by a suitable movement of reflector 400 . This method for projecting images is also referred to as the "flying spot method". In a preferred embodiment, the three radiation sources 100 , 200 and 300 are lasers, whereby the beams 110 , 210 and 310 are laser beams. Advantageously, the colors of the lasers are chosen to be red, blue and green. ...

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Abstract

The invention relates to a projection method and a projection apparatus for projecting an image onto a projection area (10) by means of at least one first (110) and second (210) beam. The intensity of the first and / or second beam is varied over time by determining the deviation of the projection of the first and second beams on the projection area and according to the previously determined deviations to thereby generate an improved image on the projection area.

Description

[0001] The application of the present invention is a branch of the invention patent application with the application date of November 8, 2007, the application number 200780041956.4 (the international application number is PCT / EP2007 / 009688), and the invention title is "projection device with improved projection characteristics". case application. technical field [0002] The present invention relates to a projection device and a method for projection with improved projection characteristics. Background technique [0003] In a device for projecting images, for each pixel a plurality of beams are superimposed and projected onto a projection surface. Ideally, a single spot is formed on the projection surface, which spot consists of the color of the radiation. In the so-called "flying spot method", the radiation beam is deflected in front of the projection surface by a movable reflector, by means of which an image can be generated on the projection surface by suitable movements...

Claims

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Application Information

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IPC IPC(8): G03B21/00H04N9/31G02B26/10
CPCH04N9/317G03B21/00H04N13/0434H04N13/0427H04N9/3129G03B21/008H04N13/365H04N13/337G03B21/14H04N9/31
Inventor 简·奥利弗·德鲁姆亨宁·雷恩巴库里·朗沙瓦沃尔夫冈·帕布斯特罗伯特·克劳斯
Owner OSRAM GMBH
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