Dual-Axis Rotating Prism Image Stabilizer for Binoculars
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Solution Overview
Problem
Existing optical systems for imaging, such as telescopes and binoculars, face challenges in stabilizing images against trembling movements and rotary movements, particularly at various frequencies and amplitudes, leading to image blurriness.
Innovation Solution
The optical system incorporates an image stabilizing unit with two optically units, each rotatable about a distinct axis, allowing independent rotation to stabilize images in multiple directions. This design reduces the moment of inertia and allows for the use of lower-power motors, resulting in a more compact and aesthetically pleasing housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a purely mechanical image stabilization device is used, then image blurring from rotary trembling movements is compensated, but stabilization at all relevant frequencies and amplitudes is not achieved
Solution Approach 1:
The image stabilizing unit is divided into multiple independent optical units (first optical unit rotatable about first axis, second optical unit rotatable about second axis), each capable of independent rotation. This segmentation allows the system to address different axes of trembling movement separately, improving stabilization effectiveness across multiple frequencies and amplitudes without requiring a single complex mechanical device
Solution Approach 2:
The optical units are designed to be dynamically adjustable with independent rotation capabilities about different axes. This dynamic configuration allows the system to adapt to various trembling movement patterns, frequencies, and amplitudes, enhancing both reliability and adaptability of image stabilization
2Area of stationary object
If a single image stabilizing unit is used for both optical subsystems, then structural width is reduced, but the stabilizing unit becomes heavy and requires high-power motors
Solution Approach 1:
The image stabilization function is segmented into separate units for each optical subsystem. Each optical subsystem has its own image stabilizing unit with optical units that can be independently adjusted. This segmentation distributes the weight and motor power requirements across multiple lighter units rather than concentrating them in one heavy unit, while still achieving compact overall structure
Solution Approach 2:
Each image stabilizing unit is optimized locally for its specific optical subsystem requirements. The optical units in each stabilizing unit can be independently adjusted to provide localized stabilization quality tailored to each subsystem, allowing use of smaller, lighter motors rather than requiring one high-power motor for the entire system
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
The solution effectively stabilizes images across a range of movements, reducing the power requirements and size of the stabilizing units, while maintaining image quality and providing a more user-friendly design.
Implementation Method 1
The first optical unit of the image stabilizing unit is embodied so as to be rotatable about a first axis of rotation
Implementation Method 2
The second optical unit of the image stabilizing unit is embodied so as to be rotatable about a second axis of rotation
Implementation Method 3
An apparatus known as a gimbal is usually used for rotatable bearing. A fulcrum of the prism erecting system gimballed in the housing is arranged at the midpoint between an image-side principal plane of the objective and an object-side principal plane of the eyepiece. On account of its inertia, the gimballed prism erecting system is not moved by arising rotary trembling movements.
Data Source
AI summary
An optical system for imaging an object includes a first objective, a first image stabilizing unit, and a first image plane, wherein, as seen from the first objective in the direction of the first image plane, the first objective is arranged first along a first optical axis, followed by the first image stabilizing unit and then the first image plane, wherein the first image stabilizing unit comprises a first optical unit and a second optical unit, wherein the first optical unit is arranged between the first objective and the second optical unit, wherein the first optical unit is embodied so as to be rotatable about a first axis of rotation, and wherein the second optical unit is embodied so as to be rotatable about a second axis of rotation. The second optical unit is embodied as an optical roof edge unit.