Module Drive Device with Orthogonal Gimbal Axes
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Solution Overview
Problem
Conventional module drive devices require a large space due to the diagonal orientation of the axes, making downsizing challenging.
Innovation Solution
The module drive device is designed with a gimbal mechanism that allows the optical module to tilt, using a connection member formed of frame-shaped metal with extending portions to accommodate the module holder, and engagement parts to facilitate swinging around defined axes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a gimbal mechanism is arranged above a rectangular movable body with diagonal axis orientation, then the optical module can tilt and rotate, but the device requires large space making downsizing challenging
Solution Approach 1:
The patent reorients the swing axes from diagonal orientation to alignment with the rectangular parallelpiped edges. The first swing axis extends along one edge direction and the second swing axis extends along another edge direction, utilizing the orthogonal dimensions of the rectangular housing rather than diagonal space, thereby reducing the required footprint area while maintaining full tilting capability
Solution Approach 2:
The connection member is designed with an asymmetric frame structure where the first and second extending portions have different orientations relative to the rectangular housing edges. This asymmetric arrangement allows the optical module to swing around the first axis while the connection member itself swings around the second axis, enabling compact integration within the rectangular housing boundaries
Data Source
AI summary
A module drive device that includes: a module holder configured to hold an optical module including a lens body and an imaging device; a connection member connected to the module holder such that the module holder is swingable around a first axis intersecting an optical axis direction; a fixed-side member connected to the connection member such that the connection member is swingable around a second axis perpendicular to an axial direction of the first axis; a driver that moves the module holder with respect to the fixed-side member; a first engagement part provided such that the module holder is swingable around the first axis; and a second engagement part provided such that the connection member is swingable around the second axis.