Optical Image Stabilization Unit Positioning for Reduced Inertia
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Solution Overview
Problem
Existing optical systems for imaging, such as telescopes and binoculars, face challenges with image stabilization due to large and heavy stabilization units that require high-power motors, leading to increased energy consumption and reduced operating times, as well as an unattractive design and high moment of inertia.
Innovation Solution
The optical system incorporates an image stabilization unit with a reduced moment of inertia by positioning its exit surface 1 mm to 20 mm from the image plane, allowing for the use of lower-force motors and smaller housings, and employs piezo-technology for precise and energy-efficient actuation, enabling a more compact and aesthetically pleasing design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large and heavy stabilization unit is used to prevent beam vignetting and ensure image stability, then image quality is maintained, but the moment of inertia increases requiring high-power motors and increasing energy consumption
Solution Approach 1:
The patent changes the spatial parameter of the stabilization unit by positioning its exit surface 1-20mm from the image plane rather than at the traditional optically neutral point. This parameter change reduces the moment of inertia of the stabilization unit, allowing lower-power motors to be used while maintaining image stabilization functionality.
2Reliability
If a large and heavy stabilization unit is used to prevent beam vignetting, then image quality is maintained, but the housing size increases and aesthetic appeal decreases
Solution Approach 1:
By changing the position parameter of the stabilization unit exit surface to be 1-20mm from the image plane, the patent reduces the required housing volume while maintaining beam integrity and image quality, resulting in a more compact and aesthetically pleasing design.
3Reliability
If the stabilization unit is positioned at the optically neutral point centrally between objective and eyepiece, then image stability is achieved, but the moment of inertia is large requiring high-power motors
Solution Approach 1:
The patent changes the positional parameter of the stabilization unit from the central optically neutral point to a position 1-20mm from the image plane. This parameter modification reduces the moment of inertia, thereby reducing the force requirements for motors used to adjust the stabilization 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
This configuration reduces the moment of inertia of the stabilization unit, allowing for lower force adjustments and smaller housing sizes, while maintaining image quality and reducing energy consumption, resulting in a more efficient and attractive optical system.
Implementation Method 1
On account of its inertia, the prism erecting system mounted in a cardan-type fashion is not moved as a result of rotary trembling movements that occur. It thus remains fixed in space.
Data Source
AI summary
A system described herein includes a first lens, a first image stabilization unit and a first image plane. When seen from the first lens in the direction of the first image plane, the order in which the elements are arranged along a first optical axis is as follows: first lens, first image stabilization unit and first image plane. The first image stabilization unit has at least one first inlet surface and at least one first outlet surface. The first inlet surface is oriented towards the first lens. The first outlet surface is oriented towards the first image plane. Furthermore, the first outlet surface is spaced apart from the first image plane in a range of 1 mm to 20 mm.