Table Tilt Detection Using Stationary Mark Photography
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Solution Overview
Problem
Current camera module inspecting apparatuses need to be stopped daily to check if the table is at the initially-set position, reducing yield and relying on manual inspection which is inaccurate and prone to cable tangling.
Innovation Solution
A table tilt checking apparatus with position marks on the table and photographers on a stationary fixing part, allowing continuous operation and accurate tilt detection without manual intervention, preventing cable tangling by keeping the photographer stationary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual inspection of table position is performed daily, then table tilt can be detected, but apparatus operation must be stopped and yield is reduced
Solution Approach 1:
The system performs self-inspection by automatically capturing images of the position mark and analyzing table tilt without human intervention. The mark photographer and controller work autonomously to detect position deviations, eliminating the need for manual inspection and allowing continuous operation.
Solution Approach 2:
Manual mechanical inspection is replaced by an optical-mechanical system. The mark photographer uses optical components (lens, sensor) to capture and analyze the position mark, substituting human visual inspection with automated image processing that can operate continuously without stopping the apparatus.
2Reliability
If manual inspection is used to check table position, then tilt detection is possible, but inspection accuracy is reduced and cable tangling occurs
Solution Approach 1:
Instead of directly observing the position mark, the system creates an optical copy (image) of the mark using the mark photographer. This captured image can be analyzed precisely without physical contact or cable interference, improving both accuracy and operational ease compared to manual visual inspection.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables continuous operation of the camera module inspecting apparatus with enhanced accuracy, reducing the need for daily stops and preventing cable tangling, thus improving yield and inspection precision.
Implementation Method 1
a first mark photographer provided on the fixing part, facing toward the first position mark
Data Source
AI summary
An apparatus for checking whether a table is at tilt is provided, which is capable of checking whether a table is at tilt from an initially-set position or not even during an operation of an inspecting apparatus. Accordingly, the apparatus for checking whether a table is at tilt, which is for use in a camera module inspecting apparatus is provided, in which the camera module inspecting apparatus includes a fixing part; a plurality of test zones provided above the fixing part; a table movable to sequentially guide a camera module sequentially to the respective test zones; and a chart respectively provided in one or more of the test zones among the plurality of test zones, and the table tilt checking apparatus includes a first position mark marked on the table and a first mark photographer provided on the fixing part, facing toward the first position mark.