Compact Optical Apparatus with Internal Actuator Placement
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Solution Overview
Problem
Conventional optical apparatuses with image stabilizing functions, such as binoculars, become larger due to the external placement of actuators, which compromises their compactness and user-friendliness.
Innovation Solution
A compact optical apparatus design featuring decentered eyepiece optical systems, an image stabilization base member, a movable member, and strategically placed driving force generators between optical axes to enable image stabilization without increasing the device's size, allowing for a more compact and ergonomic form factor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If actuators are disposed on the external shape sides of the pair of image stabilization lenses, then the pair of image stabilization lenses can be simultaneously and similarly shifted, but the entire apparatus becomes larger
Solution Approach 1:
The patent merges the placement of multiple actuators into a single actuator position between the pair of image stabilization lenses. This single actuator simultaneously controls both image stabilization lenses, eliminating the need for separate actuators on external shape sides and thereby reducing the overall apparatus size while maintaining the image stabilization function.
Solution Approach 2:
The patent repositions the actuator from external shape sides (one-dimensional placement) to an internal position between the lenses (two-dimensional placement in the optical path). This dimensional change allows the actuator to control both lenses simultaneously without increasing the external dimensions of the apparatus.
2Volume of moving object
If a single actuator is disposed between the pair of image stabilization lenses, then the apparatus becomes more compact, but the structural complexity increases
Solution Approach 1:
The single actuator positioned between the pair of image stabilization lenses is designed to perform multiple functions: it simultaneously controls both lenses for image stabilization and can independently adjust each lens. This multi-functionality reduces the number of components needed while maintaining comprehensive control capability.
Solution Approach 2:
The patent implements a dynamic control system where the single actuator can adjust the position of each image stabilization lens independently or simultaneously. This dynamic capability allows the system to adapt to different stabilization requirements without needing multiple fixed actuators, thereby reducing structural complexity.
Data Source
AI summary
An optical apparatus includes a pair of first driving force generators that generates a driving force to the movable member in a first direction orthogonal to optical axes of a pair of objective optical systems, and a second driving force generator that generates a driving force to the movable member in a second direction orthogonal to the optical axes of the pair of objective optical systems and the first direction. The pair of first driving force generators are provided between a first line segment passing through the optical axes of the pair of objective optical systems and a second line segment passing through the optical axes of the pair of eyepiece optical systems or on at least one line segment of the first line segment and the second line segment. The second driving force generator is provided between the pair of image stabilization optical systems.