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Measuring system and method for projector

A technology for projectors and images, which is used in testing optical performance, optics, instruments, etc., and can solve problems such as time-consuming

Inactive Publication Date: 2007-12-19
BENQ CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0017] It takes a total of 13 steps to measure 29 points to be measured by the traditional method, which takes too long

Method used

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  • Measuring system and method for projector
  • Measuring system and method for projector
  • Measuring system and method for projector

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Embodiment Construction

[0046] The invention discloses a measuring system and method of a projector. In order to make the description of the present invention more detailed and complete, reference may be made to the following description together with the accompanying drawings of FIGS. 1 to 6 .

[0047]Referring to FIG. 3 , a light measurement system 300 is shown according to an embodiment of the present invention. The measuring system 300 is used for measuring light characteristics of different points on the image frame 360 ​​formed by the light outputted by the projector 380 . When measuring, the projector 380 projects an image frame 360 ​​forward on the frame 370 , wherein the frame 370 may include a horizontal sliding bar 374 and a vertical sliding bar 372 . In this embodiment, the sensing devices 350, 352, 354, 356, and 358 are respectively fixed or movable on the horizontal sliding bar 374 to measure the output light of the projector 380, and the horizontal sliding bar 374 is placed on the ve...

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PUM

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Abstract

A measurement system of projector comprises a frame set at preset position in front of projector and used to display an image projected from projector, multiple first optical sensing unit set separately on said frame for measuring light characters at multiple sampling point on said image, a control unit connected to said first sensing unit and said frame for moving said first optical sensing unit to said sampling points to carry out measurement.

Description

technical field [0001] The present invention relates to a light measurement system and method, in particular, to a system and method for measuring light output by a projector. Background technique [0002] The output light quality varies from projector to projector, so there needs to be a set of measurement standards to ensure the quality of the projector. The currently commonly used standard is the 13-point measurement and 16-point comparison measurement formulated by the American National Standard Institute (ANSI), in which the 13-point measurement is the center of each equal division after the projection screen is divided into 9 equal parts point, plus 4 points in the corner, and the 16-point comparative measurement is the center point of each equal division after the projection screen is divided into 16 equal parts. The current test standard is to measure the luminosity and brightness of these 13 points, and to measure the contrast of these 16 points. Taiwan Patent Pub...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M11/02G03B21/00
Inventor 刘佳训黄明毅
Owner BENQ CORP
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