Optical Imaging Apparatus with Segmented Lens Groups for Autofocus and Stabilization
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Solution Overview
Problem
Current optical imaging apparatuses in mobile devices face challenges in achieving high-quality focusing and image stabilization, particularly in meeting the increasing demands for better photograph and filming capabilities.
Innovation Solution
The optical imaging apparatus incorporates a lens group with a stabilization component and a focusing component, including a first optical lens group for image stabilization and a second optical lens group for autofocus, along with an image sensing component and an optical path changing element, such as a reflective sheet or prism, to enhance focusing and stabilization functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional single lens group structure is used, then the device structure is simple, but the imaging quality and focusing performance are insufficient
Solution Approach 1:
The lens group is divided into multiple independent lens groups (first lens group, second lens group, third lens group) with different functions. Each lens group can move independently along the optical axis, enabling separate control of focusing and optical image stabilization functions, thereby improving imaging quality while maintaining manageable structural complexity
Solution Approach 2:
The optical imaging apparatus integrates multiple functions into a single compact structure: the first lens group handles focusing, the second lens group provides optical image stabilization, and the third lens group assists in focusing. This multi-functional design improves imaging performance without proportionally increasing device complexity
2Manufacturing precision
If multiple lens groups are added to improve focusing and stabilization, then imaging performance improves, but device weight and volume increase
Solution Approach 1:
The patent employs dynamic movement of lens groups along the optical axis for both focusing and stabilization functions. The first, second, and third lens groups can move independently to different positions, enabling the system to achieve high focusing performance through dynamic adjustment rather than static heavy structures
Solution Approach 2:
The system changes the positional parameters of different lens groups dynamically to achieve focusing and stabilization effects. By adjusting the positions of the first, second, and third lens groups along the optical axis, the system achieves high imaging performance without requiring increased mass or volume
3Productivity
If traditional focusing mechanisms are used, then the structure is simple, but autofocus speed is slow
Solution Approach 1:
The focusing function is segmented between the first lens group (primary focusing) and the third lens group (assisting focusing). This segmentation allows for more efficient focus adjustment by distributing the focusing task across multiple lens groups, thereby improving autofocus speed while maintaining a manageable mechanism complexity
Solution Approach 2:
The system performs preliminary focusing actions by coordinating the movement of multiple lens groups simultaneously. The first and third lens groups can move in conjunction to achieve faster focus acquisition compared to sequential adjustment, improving autofocus speed without excessive complexity
4Manufacturing precision
If image stabilization is implemented, then imaging quality improves, but device complexity increases
Solution Approach 1:
The second lens group is specifically dedicated to optical image stabilization while the other lens groups handle focusing functions. This clear functional separation allows the stabilization mechanism to be optimized independently, improving image stabilization performance while keeping the overall device complexity manageable through modular design
Solution Approach 2:
The stabilization mechanism uses dynamic movement of the second lens group along the optical axis to compensate for vibrations and maintain image quality. This dynamic approach allows for effective image stabilization without requiring complex mechanical structures, as the stabilization is achieved through controlled positional adjustment of the lens group
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 configuration enables faster autofocus, optical image stabilization, and telephoto functions, reducing overall weight and volume, thus meeting the requirements of high-specification mobile devices while improving imaging quality.
Implementation Method 1
the optical path changing element is a reflective sheet, an included angle between the reflective sheet and the image capturing direction being substantially the same as an included angle between the optical axis and the reflective sheet
Data Source
AI summary
An optical imaging apparatus capable of focusing is provided. The apparatus includes a lens assembly and an imaging sensing component. The lens group includes a stabilization component and a focusing component. The stabilization component has an optical axis and includes a first optical lens group and a driving element. The driving element is configured to drive the first optical lens group to move on a plane perpendicular to the optical axis or to rotate around the optical axis. The focusing component is fixed to the stabilization component and includes a second optical lens group. The second optical lens group is aligned with the optical axis. The image sensing component is fixed to one end of the lens group and is aligned with the optical axis.