Projector, and correction device and correction method thereof

A technology of calibration devices and projectors, applied in the direction of using projection devices, image reproducers, projection devices, instruments, etc., can solve cumbersome problems

Inactive Publication Date: 2012-01-11
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the adjustment process, the user needs to judge whether the adjusted image meets the requirements. If it does not meet the requirements, it needs to repeat the adjustment, which is very cumbersome.

Method used

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  • Projector, and correction device and correction method thereof
  • Projector, and correction device and correction method thereof
  • Projector, and correction device and correction method thereof

Examples

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Embodiment Construction

[0040] Below in conjunction with accompanying drawing and preferred embodiment the present invention is described in further detail:

[0041] Please refer to figure 1 A preferred embodiment of the projector 1 of the present invention includes an image input unit 10, a microprocessor unit 12, an image processor unit 13, an optical processing unit 15, a reference image storage unit 20, a sensing unit 22 and A power supply unit 16 . Wherein the microprocessor unit 12 , the reference image storage unit 20 and the sensing unit 22 form a calibration device.

[0042] During use, the user can connect a computer or other devices to the image input unit 10 to input images from the computer 18 or other devices into the projector 1 . The image is output after being processed by the microprocessor unit 12 and the image processor unit 13 , and then the processed image is projected to the projection cloth 19 via the optical processing unit 15 , so as to achieve image presentation. The pow...

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PUM

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Abstract

The invention discloses a correction device for a projector. The correction device comprises a reference image storage unit, a sensing unit and a microprocessor unit. A standard image is stored in the reference image storage unit, and is projected to projection screen fabric to form an actual image. The sensing unit is arranged right in front of the projector and used for sensing the actual image and transmitting the sensed actual image to the microprocessor unit. The microprocessor unit is used for comparing the standard image with the actual image, calculating a corresponding correction value according to a comparison result and transmitting the correction value to an image processor unit. The image processor unit is used for correcting an algorithm according to the correction value. The invention also provides a correction method for the projector and the projector comprising the correction device.

Description

technical field [0001] The invention relates to a projector, a calibration device and a calibration method thereof. Background technique [0002] Generally, when using a projector, the user needs to manually adjust the image projected by the projector so that the projector can present the best image. Generally speaking, when using a projector, the lens of the projector is generally raised slightly, so the image projected on the projection cloth will become a trapezoid due to the elevation of the lens; The color of the image is also distorted. At this time, the user needs to manually adjust the parameters of the projector to adjust the screen offset or color. During the adjustment process, the user needs to judge whether the adjusted image meets the requirements. If it does not meet the requirements, the adjustment needs to be repeated, which is very cumbersome. Contents of the invention [0003] In view of the above, it is necessary to provide a calibration device capab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/74H04N9/31G03B21/00
Inventor 谢明志
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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