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Method for determining relative position of optical detection assembly and scanning platform

A technology of scanning platform and relative position, applied in measuring devices, optical devices, instruments, etc., can solve problems such as difficulty in determining the degree of interchange, difficulty in swapping MTF curves, and easy misjudgment.

Inactive Publication Date: 2005-03-16
BENQ CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It should be noted that it is difficult to reverse the MTF curves of this kind of left-right interchange, and it is difficult to determine the degree of interchange, and it is difficult to judge whether the light detection component 30 is parallel to the scanning platform 18
Even, this exchange relationship is easily affected by the quality of the graphics file 22 or chart on the scanning platform 18, and it is prone to misjudgment, which cannot be used as a basis for subsequent corrective actions.

Method used

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  • Method for determining relative position of optical detection assembly and scanning platform
  • Method for determining relative position of optical detection assembly and scanning platform
  • Method for determining relative position of optical detection assembly and scanning platform

Examples

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Embodiment 1

[0035] Reference Figure 6 , Which represents a flowchart of the method for determining the relative position of the light detection component and the scanning platform according to the first embodiment of the present invention. First, in step 302, a first line segment graphic 122a and a second line segment graphic 122b of equal length are placed on a scanning platform 118. For example, the first line segment graphic 122a and the second line segment graphic 122b can be located in the same line. Online, such as Figure 7 or Figure 8 Shown. The lengths of the first line segment graphic 122a and the second line segment graphic 122b are L1 and L2, respectively, and L1=L2. Then, in step 304, a lens 128 is used to receive the light of the first line segment pattern 122a and the second line segment pattern 122b, and focus the light on a light detection component 130. The light detection component 130 will pick up the images of the first line segment figure 122a and the second line segme...

Embodiment 2

[0042] Reference Picture 9 , Which represents a flowchart of a method for judging the relative position of the light detection component and the scanning platform according to the second embodiment of the present invention. First, in step 602, a first line segment graphic and a second line segment graphic are placed on a scanning platform, for example, the first line segment graphic and the second line segment graphic can be located on the same straight line. Then, in step 604, a light detection component is used to pick up the images of the first line segment graphic and the second line segment graphic, and a first line segment image and a second line segment image are respectively generated accordingly. Next, proceed to step 606 to compare whether the length ratio of the first line segment image and the second line segment image is the same as the length ratio of the first line segment graphic to the second line segment graphic.

[0043] If the length ratio of the first line seg...

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Abstract

A method for determining relative position of optical detection assembly and scanning platform is disclosed. First, a first line section and a second line section with same length are put on a scanning platform. Then, an optical detection assembly picks up the images of the first line section and the second line section and generates a first line section image and a second line section image base on the images. Then, the lengths of the first line section image and the second line section image are compared to judge whether they are equal. If not equal, the relative position of the optical detection assembly and the scanning platform will be adjusted to make them in parallel.

Description

Technical field [0001] The present invention relates to a method for judging the relative position of a light detection component and a scanning platform, and particularly relates to a method for judging whether the light detection component and the scanning platform are based on the image length of two segments of equal length or equal proportions. Parallel approach. Background technique [0002] Reference figure 1 , Which shows a cross-sectional view of a conventional image pickup device. in figure 1 In this case, the image pickup device 10 includes a base 12, a flip cover 14, a scanning platform 18, and an image pickup module 20. The flip 14 is connected to the base 12 by means of a pivot device 16, and the flip 14 can be moved along figure 1 Is opened and closed on the base 12 in the direction of the arrow 50. The scanning platform 18 is disposed on the base 12 and faces the flip 14. The scanning platform 18 is used to place a graphic file 22. The image pickup module 20 ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00
Inventor 李礼操
Owner BENQ CORP