Camera Module Manufacturing Device with Inclined Measurement Charts
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Solution Overview
Problem
Conventional camera module manufacturing devices require extensive time and labor for position adjustment and type switching due to the need for multiple measurement charts and optical units, especially when dealing with lenses of different angles of view.
Innovation Solution
A camera module manufacturing device with a central optical unit and peripheral optical units, each including a collimator lens and inclined measurement charts, allows for simultaneous adjustment of the lens unit and sensor substrate positions based on central and peripheral image signals, enabling quick adjustment and accommodating various camera module types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple measurement charts are used to capture images at different positions, then position adjustment precision is improved, but adjustment time increases
Solution Approach 1:
The patent combines multiple measurement charts (central and peripheral) into a single integrated measurement system. The measurement board includes a central measurement chart surrounded by multiple peripheral measurement charts, allowing simultaneous capture of all measurement points in one image, thereby reducing adjustment time while maintaining precision
Solution Approach 2:
The patent transitions from sequential one-dimensional measurement (capturing images at different positions one after another) to parallel two-dimensional measurement (capturing all positions simultaneously in one image plane). The measurement board is designed with measurement charts distributed across different regions that can be imaged simultaneously
2Manufacturing precision
If measurement charts are exchanged for different angle of view lenses, then measurement accuracy is improved, but device complexity and labor increase
Solution Approach 1:
The patent designs a universal measurement board that can be used with lens units of different angles of view without requiring exchange of measurement charts or optical units. The measurement board's design allows it to adapt to various lens specifications, enabling one measurement board to serve multiple measurement purposes
Solution Approach 2:
The patent introduces adjustability in the measurement system. The height of the measurement board can be adjusted dynamically to match different lens focal lengths and angles of view, allowing the same measurement board to accurately measure various lens types without physical exchange of components
3Manufacturing precision
If optical units are exchanged for different angle of view lenses, then measurement accuracy is improved, but productivity decreases
Solution Approach 1:
The patent creates a universal measurement system where a single measurement board configuration can measure various lens types. This eliminates the need to exchange optical units when changing lens specifications, thereby maintaining measurement accuracy while significantly improving productivity by avoiding repeated setup and exchange operations
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
This solution enables rapid adjustment of the lens unit and sensor substrate positions, improving productivity and simplifying the process of manufacturing camera modules with different angles of view by using a single image capturing operation to obtain focus evaluation values.
Implementation Method 1
a central optical unit including a central collimator lens and a central measurement chart disposed inclined relative to a plane vertical to the optical axis of the central collimator lens, the central optical unit being for forming an image of the central measurement chart on the central portion of the image sensor through the central collimator lens and the shooting lens
Data Source
AI summary
Provided is a camera module manufacturing device including central and peripheral optical units respectively including central and peripheral collimator lenses and central and peripheral measurement charts disposed inclined relative to respective planes vertical to the respective optical axes of the central and peripheral collimator lenses, the central and peripheral optical units being for forming respective images of the central and peripheral measurement charts on the image sensor through the central and peripheral collimator lenses, respectively, and the shooting lens, wherein each peripheral optical unit is disposed such that the optical axis of the peripheral collimator lens is inclined relative to the optical axis of the central collimator lens of the central optical unit, and the angle of inclination is changeable.