Imaging Correction Unit With Rotatable Wedge Elements
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Solution Overview
Problem
Existing camera shake correction methods require custom drive mechanisms for different camera types, leading to complex designs and increased volume and power consumption.
Innovation Solution
An imaging correction unit with two wedge-shaped optical elements and an optical turning element, where the wedge-shaped elements are rotatable relative to the optical axis, allowing for optical shake compensation using a single actuator, reducing volume and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dedicated drive mechanism is designed for each different type of camera to correct camera shake, then the camera shake correction function can be accurately implemented, but the device complexity and design time increase significantly
Solution Approach 1:
The patent applies universality by designing a standardized drive mechanism that can be used across different camera types. The movable prism assembly with actuator and power transmission mechanism serves as a universal camera shake correction module that adapts to various lens groups without requiring custom design for each camera type, thereby reducing device complexity while maintaining correction accuracy
Solution Approach 2:
The patent segments the camera shake correction function into a modular optical unit that includes the movable prism, actuator, and power transmission mechanism as separate, interchangeable components. This segmentation allows the correction module to be independently designed and then universally applied to different camera systems, reducing overall system complexity
2Ease of operation
If actuators are disposed in every direction to adjust the optical axis on a two-dimensional plane, then complete optical axis adjustment is achieved, but the volume of the optical unit increases
Solution Approach 1:
The patent resolves the volume issue by transitioning from a two-dimensional actuator arrangement to a three-dimensional solution. The movable prism can rotate about the optical axis, adding a rotational degree of freedom that enables two-dimensional optical axis adjustment without requiring actuators in every directional plane, thereby reducing the overall volume of the optical unit
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 efficient optical shake compensation with reduced volume and power consumption by allowing the same actuator to control the relative rotation of the wedge-shaped elements, improving the initial beam deviation correction and optical shake compensation function.
Implementation Method 1
Each of the two wedge-shaped optical elements has an inclined optical surface... The light emitting surface of the optical element faces one of the two wedge-shaped optical elements
Data Source
AI summary
An imaging correction unit and an imaging module are provided. The imaging correction unit has an optical axis, and includes an optical turning element and two wedge-shaped optical elements. The optical turning element has a light emitting surface, and the light emitting surface has a first included angle with respect to the optical axis. Each of the two wedge-shaped optical elements has an inclined optical surface, and the inclined optical surface has a second included angle with respect to the optical axis. The light emitting surface of the optical turning element faces one of the two wedge-shaped optical elements, and the two wedge-shaped optical elements are rotatable relative to the optical axis.