Binocular Anti-Vibration Device Compact Link Mechanism
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Solution Overview
Problem
Existing anti-vibration devices for optical observation devices, such as binocles, are limited in reducing size in the upper-lower direction, which affects storage space, response speed, and portability.
Innovation Solution
An anti-vibration device is designed with a pair of left and right reflective members, holding members, link members, and actuators, where the link members are positioned in a triangular region to allow for parallel alignment of optical axes and rotation around concentric axes, reducing the device's size in the upper-lower direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the rotational axis of the second reflective member is disposed in parallel with the upper-lower direction and a driving actuator is connected to the rotational axis, then image blurring correction capability is achieved, but the size in the upper-lower direction is not reduced
Solution Approach 1:
The patent repositions the rotational axis of the second reflective member from the upper-lower direction to the front-back direction, utilizing a different spatial dimension. This dimensional change allows the actuator to be arranged in the left-right direction rather than extending in the upper-lower direction, thereby reducing the device's height while preserving the image blurring correction function.
Solution Approach 2:
The patent inverts the conventional arrangement by placing the rotational axis perpendicular to the optical axis (in the front-back direction) rather than parallel to it (in the upper-lower direction). This inversion enables the actuator to drive the reflective member from a different orientation, achieving compactness in the upper-lower direction while maintaining correction capability.
2Productivity
If the size of the anti-vibration device is reduced, then portability and response speed are improved, but the storage space and structural complexity are constrained
Solution Approach 1:
The patent merges the first and second link members into a single integrated structure that performs multiple functions: supporting both reflective members, enabling their respective rotations, and maintaining optical axis alignment. This consolidation reduces the number of separate components and simplifies the overall structure while achieving compact size and fast response.
Solution Approach 2:
The holding members are designed with multi-functionality, serving as both support structures for the reflective members and as rotational mechanisms that enable image blurring correction. This universal design reduces the need for separate dedicated components, thereby reducing overall device complexity and size.
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 effectively reduces the size of the anti-vibration device and binocle in the upper-lower direction, enhancing portability and response speed while maintaining image stabilization capabilities.
Implementation Method 1
The first reflective member is inclined with respect to the first optical axis of the objective optical system, and the second optical axis is formed by deflecting the first optical axis of the objective optical system
Implementation Method 2
The second reflective member is inclined with respect to the second optical axis and forms third optical axes parallel to the first optical axes by deflecting the second optical axes
Data Source
AI summary
An anti-vibration device includes first reflective members, second reflective members, barrels, a first link member, and a second link member. The barrels each hold the first reflective member and the second reflective member. The first link member connects the pair of left and right barrels with each other, and rotates the barrels. The second link member engages with the pair of left and right second reflective members, and rotates the second reflective members. In a case where the barrel is viewed in a direction parallel to a second rotational axis, at least a part of the first link member and the second link member is disposed in a triangle region on a rear side of the second reflective member.